This standard applies to human body induction safety devices used on presses. Safety devices are used on presses to prevent personal accidents during the stamping process. The structural performance of the safety device should ensure that when any part of the human body extends into the induction curtain, it can detect that the curtain is damaged and output a signal to prevent the slide of the press from starting or stopping. GB 5092-1985 Technical conditions for induction safety devices for presses GB5092-1985 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Technical requirements for induction type safety device used for the pressesTechnical requirements for induction type safety device used for the pressesThis standard applies to human body induction type safety devices (hereinafter referred to as safety devices) used on presses. Safety devices are used on presses to prevent personal accidents during the stamping process. UDC 621.975-7
GB 5092—85
The structural performance of the safety device should ensure that when any part of the human body extends into the induction curtain, it can detect that the induction curtain is damaged and output a signal to prevent the slide of the press from starting or stopping. 1 Glossary
1.1 Induction curtain
When a part of the human body extends into this area, the safety device can send a signal to prevent the press from starting or stopping. This area is called the induction curtain.
1.2 Protection length
Refers to the effective length of the induction curtain.
1.3 Protection height
Refers to the effective height of the induction screen.
1.4 Specification protection length and height
Refers to the protection length and height specified in the product technical specifications. 1.5 Induction screen thickness
Refers to the effective induction size of the induction screen before and after. 1.6 Response time
The time from the destruction of the induction screen to the output contact disconnecting the press control circuit. 1.7 Inspection function
When any fault occurs in the safety device itself, an output signal of the induction screen destruction state shall be immediately issued to stop the slide of the press.
1.8 Beauty protection function
After the induction screen is destroyed and the slide of the press stops running, it cannot resume running when the induction screen is restored. The "restore button" must be pressed before the slide of the press can start again. 1.9 Non-protection zone function
During the return stroke of the slide of the press, the slide of the press will not stop running even if the induction screen is destroyed. 1.10 "Accident" refers to the output state of the safety device after the induction curtain is destroyed in the protection area, or the output state of the safety device itself after a fault occurs.
1.11 Safety distance refers to the minimum distance between the induction curtain and the die edge that must be guaranteed when the safety device is installed on the press. 2 Technical requirements www.bzxz.net
2.1 The safety device shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. Issued by the National Bureau of Standards on May 9, 1985
Implemented on November 1, 1985
GB 5092-85
2.2 The safety device shall ensure reliable operation under the following conditions: the altitude shall not exceed 1000m, the ambient temperature shall not be higher than 40℃ and not lower than -10℃, b.
When the temperature is 20℃, the relative humidity of the air shall not exceed 85%, the displacement amplitude and its corresponding vibration frequency shall be in accordance with the provisions of Table 1, in a medium without explosion hazard, and there shall be no gas or conductive dust in the medium that is sufficient to corrode metal and destroy insulation. Table 1
Unidirectional displacement amplitude value
2.3 The safety device shall ensure that there shall be no damage under the following storage and transportation conditions: the ambient temperature shall not be higher than 50℃ and not lower than -40℃, b. When the temperature is 40℃, the relative humidity shall not exceed 95%C.
Vibration frequency
Acceleration shall not exceed 109, pulse duration shall be 16ms, and frequency shall be 40 times per minute. 2.4 The components used in the safety device shall not only comply with this standard, but also comply with the provisions of their respective technical requirements. 2.5 Insulation resistance of the safety device: At room temperature, the resistance value between the power cord, the output relay contact and the shell shall not be less than 100M2.
2.6 Dielectric strength of the safety device: When the voltage AC1500V is applied between the power cord, the output relay contact and the shell, there shall be no street penetration or flashover within 1min.
2.7 The temperature rise of the safety device shall comply with the provisions of Article 3.8 of GB3797-83 "Electrical Control Equipment Part 2: Electrical Control Equipment Equipped with Electronic Devices", and the temperature rise of the transformer shall not exceed 50℃. 2.8 The power supply voltage of the safety device shall be within the range of 85%~110% of its rated voltage and shall be able to work reliably for a long time. 2.9 The response time of the safety device shall not be greater than 20ms. The safety device shall have a self-test function.
The safety device shall have a self-protection function, which can also be set in the control circuit of the press. The safety device shall have a non-protection zone function, which can also be set in the control circuit of the press. The anti-interference ability of the safety device shall comply with the provisions of 3.9.6 of GB3797. The induction screen of the entire device must be a rectangle consisting of a protection length and a protection height. The protection length of the safety device is generally divided into less than 2m, 2~4m, and 4~8m, and the specific specifications are customized by the manufacturer. 2.14.1
The protection height of the safety device shall not be less than 50mm, generally less than 400mm. Under the conditions of the specified protection length and height, the safety device must ensure that the induction screen damage signal can be output when various personnel wearing various shoes and socks reach into the induction screen in all seasons of the year. 2.15
The thickness of the induction screen of the safety device shall not exceed 50mm. The contact capacity of the output relay of the safety device shall not be less than AC380V, 3A. The safety device shall have "normal" and "accident" indication signals and add signs. The "normal" indication is generally displayed by a green light signal and added with a "normal" sign; the "accident" indication is generally displayed by a red light signal and added with an "accident" sign. 2.18 The grounding requirements of the safety device shall comply with the provisions of Section 3.9.7 of GB3797. 2.19
The life of the safety device shall not be less than 10° times. GB5092--85
2.20 The safety device shall have reliable anti-vibration and anti-loosening measures. 2.21 The ferrous metal of the safety device shall have an anti-corrosion layer. 2.22 The outer protective layer of the safety device shall be uniform, smooth and flat, and shall not have cracks, peeling, blistering, sagging and wrinkling. 2.23 For any safety device with special requirements such as protection against moisture and heat, salt spray, and mildew, the user shall propose and negotiate with the manufacturer in accordance with the relevant standards.
2.24 The installation and safety requirements of the electrical components of the safety device shall comply with the relevant provisions of JB2738--80 "Technical Conditions for Electrical Equipment of Machine Tools Part 1 Electric Drive and Control of General Machine Tools". 2.25 The installation requirements of the safety device on the press and the safety requirements of the working parts of the press shall comply with the relevant provisions of JB3350-83 "Safety Technical Conditions for Mechanical Presses". 3 Test methods
3.1 "The tests in Articles 2.2b~d and 2.3 of this standard shall be conducted at the provincial "routine test station for electrical and electronic products". 3.1.1 High temperature load test in Article 2.2b of this standard: Put the safety device in a constant temperature box, and power it on for 4 hours at 40±3℃. It should be able to work normally. 3.1.2 Low temperature load test in Article 2.2b of this standard: Put the safety device in a plastic bag, seal it tightly, put it in a constant temperature box, and power it on for 4 hours at -10±3℃. It should be able to work normally. .
3.1.3 Relative humidity load test in Article 2.2c of this standard: Put the safety device in a constant temperature box, under the conditions of 20±3℃ and relative humidity of 82%~87%, and turn on the power for 4 hours. It should be able to work normally.
3.1.4 High temperature storage and transportation test in Article 2.3a of this standard: Put the safety device in a constant temperature box, under the conditions of temperature rising to 50±3℃, and leave it for 4 hours. After taking it out, place it in the natural environment for 2 hours. When the temperature drops below 40℃, turn on the power for the test. It should be able to work normally. 3.1.5 Article 2.3a of this standard: Low temperature storage and transportation test: Put the safety device in a plastic bag, seal it tightly, put it in a constant temperature box, and leave it for 4 hours under the condition of -40±3℃. After taking it out, leave it in a natural environment for 4 hours. When the temperature rises to above -10℃, turn on the power for testing. It should be able to work normally. 3.1.6 Article 2.3b of this standard: Wet heat storage and transportation test: Put the safety device in a constant temperature and humidity box, first raise the temperature to 40±3℃, then raise the relative humidity to 92%~97%. Under this condition, leave it for 48 hours. After taking it out, immediately That is, measure its insulation resistance, and the resistance value shall not be less than 1.5M. Then place it in the natural environment for 12 hours, and then conduct a power-on test. It should be able to work normally. At the same time, check the parts and appearance of the safety device. There should be no damage or rust. 3.1.7 Article 2.2d of this standard Vibration test: Fasten the safety device on the vibration test bench according to the use status, and vibrate the upper and lower coordinate directions when the displacement amplitude and dynamic frequency meet the requirements of Table 1, and move for 15 minutes each (a total of 1 hour). During this period, the power-on test should be able to work normally. 3.1.8 Article 2.Article 3c Impact storage and transportation test: Fasten the safety device with packaging on the impact test bench, and subject it to 200 impacts (a total of 1200 times) in all directions, up and down, left and right, front and back, under the conditions of peak acceleration of 10g, pulse duration of 16ms, and frequency of 40 times per minute. It shall not be damaged. After the impact, immediately power on the test, and it shall be able to work normally.
3.2 The insulation resistance test of the safety device in Article 2.5 of this standard is to use a 500V megohmmeter to connect between the power cord and the shell, and between the output relay contact and the shell. After applying the voltage for 1 minute, the insulation resistance value shall not be less than 100M. 3.3 The dielectric strength test of the safety device in Article 2.6 of this standard is to use a high-voltage test equipment of more than 0.5kVA to apply ac1500V voltage between the power cord and the shell, and between the output relay contact and the shell. There shall be no breakdown and flashover within 1 minute. 3.4 The temperature rise test of the safety device in Article 2.7 of this standard shall be carried out in accordance with the provisions of Article 4.10 of GB3797. 3.5 The power supply voltage fluctuation resistance test of the safety device in Article 2.8 of this standard is to use a transformer to adjust the power supply voltage to 110% of the rated voltage value of the safety device, and then conduct a test to destroy the induction screen. When it is adjusted to 85% of its rated voltage value, the test to destroy the induction screen is conducted. There should be a normal output of 335
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GB 5092 --- 85
3.6 The response time test of the safety device in Article 2.9 of this standard is recorded by an optical oscilloscope or equivalent method. The signals are taken from the emission level and output contact of the safety device respectively. When the induction screen is destroyed, the time difference between the two recorded is the response time. The response time shall not exceed 20ms.
3.7 The self-check function test of the safety device in Article 2.10 of this standard is to artificially disconnect the power supply, short-circuit and open-circuit all the main components such as triodes, integrated blocks, relays, etc., and their output contacts should appear in the state of induction screen destruction. 3.8 The self-protection function test of the safety device in Article 2.11 of this standard is to install the two output lines of the self-protection on the normally open contact of the "restore button". When the induction screen is destroyed, the safety device outputs the induction screen destruction signal, and it remains after the induction screen is restored. Press the "restore button" again to restore the original state. If the self-protection function is set in the press control circuit, this item is not checked, but it must be stated in the product manual.
3.9 The function test of the safety device in the non-protected area in Article 2.12 of this standard is that when the two output lines of the non-protected area are disconnected, the safety device should be able to work normally, and when they are connected, the safety device should not work. If the non-protected area function is set in the press control circuit, this item is not checked, but it must be stated in the product manual. 3.10 The anti-interference test of the safety device in Article 2.13 of this standard shall be carried out in accordance with the provisions of Article 4.14 of GB3797. 3.11 The protection range test of the safety device in Article 2.14.3 of this standard is to be tested by hand under simulated climate and human body conditions. There should be normal output within the range of the specified protection length and height. 3.12 The thickness test of the induction screen of the safety device in Article 2.15 of this standard is to test it by hand in the front and rear directions of the induction screen. The front and rear dimensions with normal output shall not exceed 50mm.
3.13 The life test of the safety device in Article 2.19 of this standard is to destroy the induction screen at various locations at a frequency of about 300 times per minute, and the output signal accumulates to 106 times. 4 Inspection rules
4.1 The safety device must be identified by the technical inspection department designated by the state in accordance with this standard and can only be produced after obtaining a license. 4.2 The inspection of safety devices is divided into factory inspection and type inspection. 4.3 When each safety device leaves the factory, in addition to the factory inspection qualification document, it must also have a type inspection certificate issued by the technical inspection department designated by the state before it can be released. 4.4 Factory inspection shall be carried out in accordance with the provisions of the sampling plan for normal inspection (general inspection level II) in GB2828-81 "Batch inspection counting sampling procedures and sampling tables". 4.4.1 Inspection items:
In addition to the inspections in accordance with Articles 2.5, 2.6, 2.8, 2.9, 2.13, 2.14, 2.15, 2.20 and 2.22 of this standard, the assembly quality, appearance and completeness shall also be inspected in accordance with the drawings and relevant documents. 4.4.2 Defect classification:
Fatal defects of safety devices: including failure to comply with any of Articles 2.5 and 2.6 of this standard: a.
Major defects of safety devices: including failure to comply with any of Articles 2.8, 2.9, 2.13, 2.14.3 and 2.15 of this standard, b.
Minor defects of safety devices: including other defects that fail to meet the qualified quality requirements and do not constitute fatal defects and major defects. c.
4.4.3 Classification of non-conforming products:
Fatal non-conforming products: unit products with one or more fatal defects, and may also have major and (or) minor defects, a.
Major non-conforming products: unit products with one or more major defects, and may also have minor defects, but not including fatal defects, minor non-conforming products: unit products with one or more minor defects, but not including fatal or major defects. c.
4.4.4 Batch qualified quality level:
Each inspection batch is stipulated to be less than 90 units, and the batch qualified quality level shall be in accordance with the provisions of Table 2. 336
Non-conforming products
Major non-conforming products
Minor non-conforming products
4.4.5 Determination of batch qualified and unqualified: GB 5092--85
Qualified quality level (AQL)
a. In the sampling inspection, as long as one fatal nonconforming product is found in the sample, the batch is judged as nonconforming. b. According to the qualified quality level AQL value specified in Table 2 of Section 4.4.4 of this standard, the batch is judged as qualified only when both the light and heavy nonconforming products are less than or equal to the qualified judgment number Ac. When the number of light and heavy nonconforming products is equal to or greater than the nonconforming judgment number R., the batch is judged as nonconforming.
4.4.6 When the batch safety device is judged as nonconforming, the nonconforming products can be repaired or eliminated and then submitted for inspection again. 4.5 Safety devices should be type-tested in the following cases: New trial products:
When the design, process or materials used in the product change affect the performance of the product, the product that has been discontinued for more than half a year is resumed, and the batch or mass production products are conducted once every two years. d.
The full device type inspection shall include the following contents:a.
According to the requirements of Article 3.1 of this standard, provide the routine test certificate of the "routine test station for electrical and electronic products" at or above the provincial level; according to the requirements of Article 4.4 of this standard, provide the factory batch certificate within two years, and according to the provisions of Article 4.7 of this standard, the technical performance inspection shall be carried out by the technical inspection department designated by the state. c.
4.7 The technical performance inspection items and methods carried out by the technical inspection department designated by the state are as follows:a. The technical performance inspection items shall be carried out in accordance with Articles 2.1, 2.4~2.24 of this standard;b. The technical performance inspection method is to sample the products that have passed the factory test, and the number shall not be less than 5 units. During the random inspection, if one of the units fails one item, a sample twice the number of the first sampling shall be re-drawn for re-inspection. If there is still failure, it shall not be considered as qualified. The production of this type of product or individual components must be stopped until the defects are eliminated and the test is passed before the production can be resumed. 4.8 The technical inspection department designated by the state has the right to directly conduct irregular technical performance inspections on the products. The state has the right to issue warnings or revoke the production license for enterprises that do not produce in accordance with this standard and whose product technical performance does not meet the requirements. 4.9 The production license shall be renewed every two years. 5 Marking, packaging, transportation and storage
Each safety device shall have a product nameplate fixed in a conspicuous position. The content of the nameplate is as follows: a.
Manufacturer name or factory logo;
Product name,
Product model:
Rated voltage,
Response time,
Manufacture year and month.
Each safety device shall be packed in a waterproof and moisture-proof packaging box. The size of the packaging box shall be determined according to the external dimensions of the safety device to prevent 5.2
from moving due to excessive gap after installation.
5.3The packaging of the safety device shall be suitable for loading requirements for land and water transportation. 5.4 The outer wall of the package should have obvious and durable words and signs, which include the following: manufacturer's name and address; consignee's name and address; product model and name; product net weight and gross weight including box; box dimensions: length × width × height; box number; signs "caution" and "moisture-proof". The technical documents supplied with the product include: packing list, product factory certificate, product manual. GB 5092-85 Safety devices should not be attacked by rain and snow, severe vibration, impact and collision during transportation and storage. They should be stored in a warehouse with good air circulation, relative humidity not exceeding 85%, temperature not higher than 40℃ and not lower than 30℃, and the surrounding environment should be free of acid, alkaline and other corrosive gases and dust.
GB 5092—85
Appendix A
Safety distance when safety device is installed on press (reference part)
In order to ensure personal safety, the safety distance requirement must be met when the safety device is installed on the press. Otherwise, there is a possibility of accidents.
Safety distance refers to the minimum distance between the induction curtain of the safety device and the cutting edge of the die. Its calculation method should be determined according to the clutch structure type of the press.
A.1 For the clutch that can stop the slide of the press at any position of the stroke Ds = 1.6 (T, + T2)
Where: Ds~-safety distance, m#
hand extension speed, m/s,
T, time from the hand breaking the induction curtain to the output contact of the safety device disconnecting the control circuit of the press, sT?-time from the disconnection of the press control circuit to the complete stop of the slide, s. Note: ) T, is the technical parameter given by the safety device itself, that is, the response time specified in this standard. ②T2 varies with the pressure and needs to be measured in practice. When measuring, it should be carried out when the crankshaft rotates to about 90°. A.2
For the clutch that cannot stop the slide of the press at any position of the stroke Ds - 1.6 Ts
Where: Ds
Safety distance, m,
Hand extension speed, m/s
Time from the hand leaving the induction screen (that is, allowing the slide to start) to the slide of the press reaching the bottom dead center, s, where: N~Number of clutch engagement slots;
T——Time for the crankshaft to rotate one circle, s. Additional notes:
This standard was proposed by the Ministry of Labor and Personnel of the People's Republic of China and drafted by the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery Industry of the People's Republic of China.
This standard was drafted by the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery Industry. The main drafter of this standard is Su Jinpu.
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