JB/T 3228-1999 This standard is a revision of JB 3228-83 "Distribution form and size of slots and punch (ejector) rod holes for fastening molds of closed mechanical presses". This standard specifies the distribution form and size of slots and punch (ejector) rod holes for fastening molds of closed mechanical presses. This standard is applicable to closed single-point, double-point, four-point single-action presses with a nominal pressure of 1600~25000kN, and closed single-point, double-point, four-point double-action stretching presses. All newly designed closed general mechanical presses shall comply with the provisions of this standard. In special cases, they can also be manufactured according to user requirements. This standard was first issued in May 1983. JB/T 3228-1999 Distribution form and size of slots and punch (ejector) rod holes for fastening molds of closed mechanical presses JB/T3228-1999 Standard download decompression password: www.bzxz.net

ICS25.120.10
Machinery Industry Standard of the People's Republic of China
JB/T3228—1999
Closed Mechanical Press
Distribution Form and Dimensions of Slots and Punching (Ejection) Rod Holes for Fastening Dies
Published on 1999-05-14
State Machinery Industry Bureau
Implemented on 2000-01-01
J B/T3228—1999
1 Scope
2 Terms
3 Distribution and size of slide block, work table, T-slot, punch (top) rod hole 4 Type and size of T-slot, punch (top) rod hole JB/T3228-1999
This standard is a revision of JB322883 "Distribution and size of slots and punch (top) rod holes for fastening dies of closed mechanical presses". The technical content of this standard is basically consistent with that of JB322883, and it has only been re-edited according to relevant regulations. This standard shall be implemented from January 1, 2000, and this standard shall replace JB322883 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Forging Machinery. The drafting units of this standard are: Jinan No. 2 Machine Tool Plant, Shanghai Forging Machine Tool Plant, Yingkou Forging Machine Tool Plant, etc. This standard was first issued in May 1983.
1 Scope
Machinery Industry Standard of the People's Republic of China
Closed Mechanical Press
Distribution and Size of Slots and Punching (Ejection) Rod Holes for Fastening Dies
JB/T3228-1999
Replaces JB322883
This standard specifies the distribution and size of slots and punching (ejection) rod holes for fastening dies of closed mechanical presses. This standard is applicable to closed single-point, double-point, four-point single-action presses and closed single-point, double-point, four-point double-action tensile presses with a nominal force of 1600-25000kN. All newly designed closed general mechanical presses shall comply with the provisions of this standard. In special cases, they can also be manufactured according to user requirements.
2 Terms
This standard adopts the following definitions.
2.1 Left-right direction: the direction facing the front of the press, connecting the left and right sides. 2.2 Front-to-back direction: the direction connecting the front and back of the press. (Back)
Left-to-right direction
(Front)
2.3 Punch rod hole: a hole that passes through the lower plane of the slider and through which the punch rod passes. Front
2.4 Ejector rod hole: a hole that passes through the upper plane of the worktable and through which the push rod of the stretch pad passes. Right
2.5 Slot for fastening the die: a slot for screws on the working surface of the press for fastening the die (hereinafter referred to as the T-slot). 3 Distribution and size of sliders, worktables, T-slots, punch (ejector) rod holes 3.1 Closed single-point single-action press
3.1.1 The distribution and size of the T-slots on the lower plane of the slider and the punch rod holes shall comply with the provisions of Figure 1 and Table 1. 3.1.2 The distribution form and size of the plane T-slot and the ejector hole on the worktable shall comply with the provisions of Figure 2a (for products with a nominal force below 4000KN, approved by the State Machinery Industry Bureau on May 14, 1999 and implemented on January 1, 2000
, it may also comply with the provisions of Figure 2b and Figure 2c) and Table 3. 3.2 Closed double-point single-action and four-point single-action presses JB/T3228-1999
3.2.1 The distribution form and size of the plane T-slot and the ejector hole under the slider shall comply with the provisions of Figure 3 and Table 4. 3.2.2 The distribution form and size of the plane T-slot and the ejector hole on the worktable shall comply with the provisions of Figure 4a, Figure 4b and Table 5. 3.3 Closed single-point double-action drawing presses
3.3.1 The distribution form and size of the plane T-slot under the inner and outer sliders shall comply with the provisions of Figure 5 and Table 6. 3.3.2 The distribution form and size of the plane T-slots and ejector holes on the worktable shall comply with the provisions of Figure 6 and Table 6. 3.4 Closed double-point double-action stretching and four-point double-action stretching presses 3.4.1 The distribution form and size of the plane T-slots under the inner and outer slides shall comply with the provisions of Figure 7 and Table 7. 3.4.2 The distribution form and size of the plane T-slots and ejector holes on the worktable shall comply with the provisions of Figure 8 and Table 7. 4 Types and sizes of T-slots and ejector holes 4.1 The type and size of T-slots shall comply with the provisions of Figure 9 and Table 8. 4.2 The type and size of ejector holes shall comply with the provisions of Figure 10a, Figure 10b, Figure 10c and Table 9. Center punch hole
/According to Figure 10b, Table 9
According to Figure 9, Table
Mold mounting hole
According to Figure 10. Table 9
Figure 1 T-slot and punch hole distribution form of slider of closed single-point single-action press 2
Ji=225
J2=375
Ji=525
Table 1 T-slot and punch hole distribution form of slider of closed single-point single-action press Distribution size of holes left
Start and end number
T2=300
T,=600
Start and end number
Front and rear direction
Punching hole
Mounting hole
B/T3228-
Lower block
According to the drawing,
JB/T3228-1999
Ejector hole
According to Figure 10 Installation 9
Middle Middle Middle Middle
Figure 2a Distribution of T-slot and ejector hole on the worktable of closed single-point single-acting press Note: Products with nominal force below 4000kN can also be made according to Figures 2b and 2c. 5
Top decay flower
According to rate 0 table 9
[3 holes evenly distributed
JB/T3228—1999
6 gifts evenly distributed
8 holes powder
8 holes evenly distributed
T-shaped groove
According to Figure 9, table search
Figure 2b Nominal force below 4000kN single-point single-action press worktable top rod hole circular distribution form nominal force
8 holes evenly distributed| |tt||8 holes evenly distributed
JB/T3228-1999
Figure 2c "*" type distribution form of worktable for single-point single-action press with nominal force below 4000kNTable 2 "*" type distribution size of worktable for single-point single-action press with nominal force below 4000kNL
≥800
≥900
≥1120
1The size of T-slot shall be as specified in Figure 9 and Table 8.
2The size of ejector hole shall be as specified in Figure 10c and Table 9. 80
Table 3 Distribution dimensions of T-slots and ejector holes on the worktable of closed single-point single-action press Left-right direction
Number of starts and stops
Wa=150
Ws=375
Number of starts and stops
Front-back direction
S4=300
Ss=375Www.bzxZ.net
Ss=525
Number of starts and stops
Ejector hole
JB/T3228-1
Punch hole
According to Figure 10a and Table 9
JB/T3228-19 99
atdtha
Mold mounting hole
T-shaped machine
According to Figure 9 and Table 8
Distribution form of slide block T-slot and punch hole of closed double-point single-action and four-point single-action press Figure 3
Table 4 Distribution size of slide block T-slot and punch hole of closed double-point single-action and four-point single-action press Left
J3=375
J4-525
J5-675
J6-825
Je=1125
Jg=1275
J10= 1425
Js=600
Js=1200
J6-1500
J=1800
Jg=2100
Jg=2400
Jo-2700
start and end Number
T,=600
T-=750
Te=900
T-=1050
T=1200
T,=1350
To=1500
Th=1650
T2-1800
T,=150
T2=450
T-1050
T=1350
T=1650
Tr=1950
T=2250
Te=2550
To-2850
Tr=3150
T2=3450
Number of start and end points
Front and rear direction
Pole hole
Mounting hole
B/T3228-1
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