CN212945007U - Stamping die of compressor intermediate plate - Google Patents
Stamping die of compressor intermediate plate Download PDFInfo
- Publication number
- CN212945007U CN212945007U CN202020692901.2U CN202020692901U CN212945007U CN 212945007 U CN212945007 U CN 212945007U CN 202020692901 U CN202020692901 U CN 202020692901U CN 212945007 U CN212945007 U CN 212945007U
- Authority
- CN
- China
- Prior art keywords
- die
- hole
- plate
- phi
- ejector rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a stamping die of a compressor intermediate plate, a composite die comprises an upper die component and a lower die component which are oppositely arranged up and down, wherein the upper die component comprises an upper template, an upper fixing plate, an upper backing plate, a punch-die and hole upper ejector rods with various specifications; the lower die assembly comprises a lower die plate, a lower backing plate, a lower fixing plate, a female die, a lower dowel bar I, a lower dowel bar II, a female die insert, a counter pressure plate and round hole male dies of various specifications; the key hole and the appearance are synchronously processed by adopting a scientific and reasonable structure. The advantages are that: the composite die is used in the processing, so that two working procedures of heating and heat treatment can be saved, the drilling amount is greatly reduced, the processing working procedures are greatly reduced and simplified, the production cost is reduced, the efficiency is improved, and the product quality is improved; the key hole and the appearance are processed synchronously, secondary positioning is not needed, accumulated errors are avoided, the shape and position dimensions are more stable, and the yield of products is greatly improved; greatly reduces the consumption of materials and energy, and is energy-saving and environment-friendly.
Description
Technical Field
The utility model relates to a technical field of the processing of compressor intermediate plate especially relates to special composite die of compressor intermediate plate body processing.
Background
The compressor intermediate plate is generally of a circular or quasi-circular configuration and is commonly used in compressors for air conditioners and large ice chests. As shown in fig. 1, the compressor middle plate is generally a cylindrical structure, a phi 31.2 hole is arranged in the axial middle, a plurality of holes, such as 5 phi 7 holes, 2 phi 9.5 holes and 2 phi 3 holes, are arranged around the phi 31.2 hole and close to the edge of the compressor middle plate, the distance between the holes and the edge of the compressor middle plate is 2.7 mm at the minimum, the size error range of the hole position is required to be less than 0.2mm, the size error range of the verticality is required to be less than 0.1 mm, and the precision requirement is high; and the hardness of the part reaches HRB85-105 due to the requirement of working conditions. In order to meet the requirements, the intermediate plate of the compressor is manufactured by adopting a traditional forging process, and the whole process flow is as follows: stock preparation → heating → die forging → turning of excircle → drilling of 9 holes → double-sided grinding → heat treatment → cleaning → correction → full inspection and packaging. The intermediate plate of the compressor adopts the traditional forging process and has the following defects: (1) the processing procedures are multiple, and the processing process is relatively complex; (2) the hole and the appearance are processed separately, accumulated errors are caused due to the need of secondary positioning, the dimensional stability of the hole position is poor, and in addition, the minimum distance between phi 7 and phi 9 holes is only 2.7 mm, so that the forming is more difficult, the rejection rate is high, and the reliability and the stability of the finished product forming are difficult to ensure; (3) the consumed materials and energy are large, which is not beneficial to energy conservation and environmental protection, and leads to high production cost and low efficiency.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that the stamping die that current compressor intermediate lamella can't use carries out the punching press, the utility model provides a stamping die of compressor intermediate lamella.
In order to achieve the purpose, the utility model adopts the technical proposal that:
a stamping die for a compressor intermediate plate comprises a composite die for stamping a stamping plate into a compressor intermediate plate blank, the composite die comprises an upper die component and a lower die component which are arranged oppositely up and down, and is characterized in that,
the upper die assembly comprises an upper die plate, an upper fixing plate, an upper base plate, a male die and a female die, a phi 7 hole upper ejector rod I, a phi 9.5 hole upper ejector rod I, a phi 7 hole upper ejector rod II, a phi 9.5 hole upper ejector rod II, a phi 31.2 hole upper ejector rod I and a phi 31.2 hole upper ejector rod II; wherein the content of the first and second substances,
the upper die plate is used for bearing the components in the upper die component and is arranged above the lower die component;
the upper base plate is detachably arranged below the upper template and used for protecting the upper template and bearing the force transmitted by the punch-die;
the upper fixing plate is detachably arranged below the upper base plate and used for fixing the male die and the female die;
the convex-concave die is detachably arranged below the upper fixing plate, convex-concave die holes which are fixed on the upper fixing plate at the outer side of the upper part of the convex-concave die are used for stamping the shape of the compressor intermediate plate blank, and the shape of the convex-concave die is matched with that of the compressor intermediate plate blank;
the middle of the convex-concave die is provided with a # 1 middle through hole for the phi 31.2 upper ejector rod II to move up and down, and the phi 31.2 upper ejector rod II can be movably arranged in the # 1 middle through hole up and down; the upper template and the upper backing plate are respectively provided with a middle coaxial through hole with a 1# middle through hole coaxially opposite to each other, and the middle coaxial through holes are respectively a 11# through hole and a 12# through hole from top to bottom; the phi 31.2 hole upper ejector rod I can movably penetrate through the 10# through hole 71, the 20# through hole 91 and the 30# through hole 81 up and down to be connected with the phi 31.2 hole upper ejector rod II into a whole;
a plurality of No. 2 ejector rod holes are formed in the edges of the male and female dies, and an upper ejector rod I in a phi 7 hole and an upper ejector rod I in a phi 9.5 hole can be movably arranged in the corresponding No. 2 ejector rod holes up and down; the upper template, the upper backing plate and the upper fixing plate are respectively provided with a plurality of groups of coaxial ejector rod holes which are coaxially opposite to each 2# ejector rod hole, and each group of coaxial ejector rod holes are respectively a 21# ejector rod hole, a 22# ejector rod hole and a 23# ejector rod hole from top to bottom; the phi 7 hole upper mandril II and the phi 9.5 hole upper mandril II can movably penetrate through the corresponding 21# mandril hole, 22# mandril hole and 23# mandril hole up and down, the phi 7 hole upper mandril I and the phi 7 hole upper mandril II are connected into a whole, and the phi 9.5 hole upper mandril I and the phi 9.5 hole upper mandril II are connected into a whole;
the lower die assembly comprises a lower die plate, a lower backing plate, a lower fixing plate, a female die, a lower dowel bar I, a lower dowel bar II, a female die insert, a back pressure plate, a phi 31.2 round hole male die, a phi 7 round hole male die and a phi 9.5 round hole male die; wherein the content of the first and second substances,
the lower template is used for bearing the components in the lower die component and is arranged below the upper die component;
the lower backing plate is detachably arranged on the lower template and used for protecting the lower template and bearing the force transmitted by the round hole male dies;
the lower fixing plate is detachably arranged on the lower backing plate and is used for fixing the female die and all the round hole male dies;
the female die is detachably arranged on the lower fixing plate, and an embedded through groove for accommodating a female die insert is formed in the female die;
the die insert is fixed in the insert through groove of the die, the upper surface of the die insert is flush with the upper surface of the die, and the die insert is provided with a stamping movable hole which is also used as a stamping forming groove of a middle plate blank of the compressor and a guide hole of a back pressure plate;
the back pressure plate can be movably arranged in the punching movable hole of the female die insert up and down, the height of the back pressure plate is smaller than that of the punching movable hole, and the back pressure plate is provided with a 3# middle through hole and a plurality of 4# male die holes; under the normal state, the upper surface of the counter pressure plate is upwards exposed from the stamping movable hole of the die insert;
the lower dowel bar I is connected to the bottom of the counter pressure plate, and lower dowel bar I holes for the lower dowel bar I to penetrate out downwards are formed in the lower fixing plate and the lower base plate and are a 39# dowel bar I hole and a 29# dowel bar I hole respectively;
a lower dowel bar II connected with the lower end of the lower dowel bar I, a No. 30 lower dowel bar II hole for the lower dowel bar II 9 to penetrate out downwards is arranged on the lower template,
the phi 31.2 round hole male die is used for punching a phi 31.2 round hole on the intermediate plate blank body of the compressor;
the phi 7 round hole male die is used for punching a phi 7 round hole in the intermediate plate blank body of the compressor;
the phi 9.5 round hole male die is used for punching a phi 9.5 round hole on the intermediate plate blank body of the compressor;
the position and the specification of the No. 3 middle through hole are matched and corresponding to the No. 1 middle through hole on the male and female dies, and the position, the specification and the number of the No. 4 male die holes are matched and corresponding to the No. 2 ejector rod holes on the male and female dies;
the lower fixing plate and the lower backing plate are respectively provided with a 31# middle through hole and a 32# middle through hole which are coaxially opposite to the 3# middle through hole; the lower fixing plate and the lower backing plate are respectively provided with a plurality of groups of coaxial male die holes which are coaxially opposite to each No. 4 male die hole, and each group of coaxial male die holes are respectively a No. 41 male die hole and a No. 42 male die hole from top to bottom;
the phi 31.2 round hole male die can movably penetrate through the 32# middle through hole, the 31# middle through hole and the 3# middle through hole in sequence, the upper end of the phi 31.2 round hole male die is flush with the upper surface of the female die, and the lower end of the phi 31.2 round hole male die is detachably fixed on the lower backing plate;
the phi 7 round hole male die and the phi 9.5 round hole male die can movably penetrate through the corresponding 41# male die hole, 42# male die hole and 4# male die hole in sequence, the upper ends of the round hole male dies are flush with the upper surface of the female die, and the lower ends of the round hole male dies are detachably fixed on the lower base plate.
Furthermore, a guide plate is arranged below the upper template, the guide plate can be movably suspended on the upper template up and down through a guide post, and a guide groove for the movement of the upper base plate, the upper fixing plate and the convex-concave die is arranged on the guide plate; a material pressing plate is arranged below the guide plate and detachably fixed below the guide plate; an upper transmission ejector rod is arranged at the top of the material pressing plate; the lower end of the upper force transmission ejector rod is fixed at the top of the pressure plate, and the upper end of the upper force transmission ejector rod movably extends out of the upper side of the upper template after sequentially penetrating through the guide groove, the upper fixing plate, the upper backing plate and the upper template.
Furthermore, a locking pin for stamping, guiding and positioning the female die and the pressure plate is arranged between the upper die component and the lower die component; the male pin of the locking pin is arranged on the pressure plate, and the lower end of the male pin extends downwards from the lower surface of the pressure plate;
the spring female pin of the locking pin is vertically arranged on the lower template, the lower backing plate, the lower fixing plate and the female die, and the spring female pin is vertically matched and opposite to the male pin.
Furthermore, a concave die assembly formed by the concave die and the concave die insert is provided with a pattern groove for storing oil on the upper surface of the feeding side of the concave die assembly, the shape of the pattern groove is matched with the shape of the lower surface of the intermediate plate blank of the compressor obtained by stamping, and the depth of the pattern groove is 0.3 mm; the lower surface of the pressure plate 5 is also provided with pattern grooves matched with and corresponding to the pattern grooves, the two sides of the lower surface of the pressure plate are provided with material edge grooves suitable for punching burrs at two edges of a plate, and the upper surfaces of the female die and the female die insert are also provided with material edge grooves suitable for punching burrs at two edges of the plate;
the upper surface of the female die assembly on one side of the discharging side is provided with an avoiding groove for avoiding burrs, the appearance of the avoiding groove is matched with the appearance of the lower surface of a compressor intermediate plate blank obtained by stamping, and the depth of the avoiding groove is 0.3 mm.
Furthermore, the diameter of the 1# middle through hole is larger than that of the middle coaxial through hole, and the outer diameter of the phi 31.2 hole upper ejector rod II is larger than that of the phi 31.2 hole upper ejector rod I.
Furthermore, the bottom of the female die is provided with a bottom groove, the bottom groove is positioned below the embedded through groove, the width of the bottom groove is larger than that of the embedded through groove, a female die insert base plate is arranged in the bottom groove, and the female die insert base plate and the female die insert are connected into a whole through a female die insert screw; the die insert base plate is tightly pressed on the upper surface of the lower fixing plate by the die, and a second punching movable hole which is matched with the punching movable hole of the die insert and is overlapped with the punching movable hole of the die insert is formed in the die insert base plate.
Furthermore, a screw head hole is formed in the lower fixing plate, the position of the screw head hole corresponds to the position of the die insert screw in a matching mode, and the screw head of the die insert screw is located in the screw head hole.
In order to accelerate the stamping efficiency and reduce the generation of leftover materials, the die is further improved, 2 pieces of through embedding slots are arranged on the die, the 2 pieces of through embedding slots are arranged in tandem and are arranged in a staggered and intersected mode from head to tail in the left and right directions, and the staggered and intersected positions of the 2 pieces of through embedding slots are communicated;
the female die insert is 2 blocks and is respectively fixed in the insert through groove of the female die;
the back pressure plate, the lower dowel bar I, the lower dowel bar II, the phi 31.2 round hole male die, the phi 7 round hole male die and the phi 9.5 round hole male die form a back pressure lifting plate component, the back pressure lifting plate component is 2 pieces, and the back pressure plates are respectively and correspondingly arranged in stamping movable holes of corresponding female die inserts to form a double-station lower die component with a double-station structure;
similarly, the male and female dies, the phi 7 hole upper ejector rod I, the phi 9.5 hole upper ejector rod I, the phi 7 hole upper ejector rod II, the phi 9.5 hole upper ejector rod II, the phi 31.2 hole upper ejector rod I and the phi 31.2 hole upper ejector rod II form an upper convex die assembly, the upper convex die assembly is 2 pieces, and a double-station upper die assembly matched with the double-station lower die assembly is formed. The improved punching plate can be fully utilized, the waste of leftover materials is reduced, and the working efficiency is improved.
From the above, for prior art, the utility model has the following advantages: through the special composite die with scientific and reasonable structure, two processes of heating and heat treatment can be saved when the compressor intermediate plate is processed, the drilling amount is greatly reduced, parts manufactured by adopting a fine blanking process method have fewer processing processes, and compared with the traditional process for manufacturing the compressor intermediate plate, the two processes of heating and heat treatment are at least saved, the processing amount of 7 holes is reduced in the drilling process, the processing processes are greatly reduced and simplified, and the fine blanking process with more convenient processing speed and operation replaces the die forging process with complicated operation, so that the production cost is reduced, the efficiency is improved, the product appearance is more attractive, and the section quality is high; the key hole and the appearance are processed synchronously, secondary positioning is not needed, accumulated errors are avoided, the shape and position dimensions are more stable, and the yield of products is greatly improved; greatly reduces the consumption of materials and energy sources, and is beneficial to energy conservation and environmental protection; the problem that the edge distances of phi 7 and phi 9 holes are small and difficult to form is solved; the technical scheme has important significance for improving the level of the domestic fine blanking industry.
Drawings
Fig. 1 is a schematic structural diagram of a compressor intermediate plate according to the present invention.
Fig. 2 is a top view of the composite mold of the present invention.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a cross-sectional view of fig. 2.
Fig. 5 is an exploded view of fig. 4.
Fig. 6 is an operation state diagram of step 1 of fig. 4.
Fig. 7 is an operation state diagram of step 2 of fig. 4.
Fig. 8 is an operation state diagram of step 3 of fig. 4.
Fig. 9 is an operation state diagram of step 4 of fig. 4.
Fig. 10 is an operation state diagram of step 5 of fig. 4.
FIG. 11 is a perspective view of the lower platen.
Fig. 12 is a perspective view of the lower mat.
Fig. 13 is a perspective view of the lower fixing plate.
Fig. 14 is a perspective view of the female mold.
Fig. 15 is a perspective view of the nip plate.
Fig. 16 is a perspective view of the guide plate.
Fig. 17 is a perspective view of the upper die plate.
Fig. 18 is a perspective view of the upper fixing plate.
Fig. 19 is a perspective view of the upper mat.
Fig. 20 is a perspective view of the punch and die.
Figure 21 is a perspective view of a die insert.
Figure 22 is a perspective view of the die insert backing plate.
Fig. 23 is a perspective view of the counter plate.
FIG. 24 is a perspective view of a round hole punch of diameter 31.2.
FIG. 25 is a perspective view of a phi 7 round hole punch.
FIG. 26 is a perspective view of a round hole punch of phi 9.5.
The reference numbers illustrate:
1-a lower template, 2-a lower backing plate, 3-a lower fixing plate, 4-a die, 5-a pressure plate, 6-a guide plate, 7-an upper template, 8-an upper fixing plate, 9-an upper backing plate, 10-phi 7 hole upper ejector pins I, 11-phi 9.5 hole upper ejector pins I, 12-phi 7 hole upper ejector pins II, 13-phi 9.5 hole upper ejector pins II, 14-phi 31.2 hole upper ejector pins I, 15-phi 31.2 hole upper ejector pins II, 16-a punch die, 17-an upper force ejector pin, 18-a locking pin, 19-a guide pillar, 27-a die insert, 28-a die backing plate, 29-a lower force transmission pin I, 30-a lower force transmission pin II, 34-phi 31.2 circular hole punch, 35-phi 7 circular hole, 36-phi 9.5 circular hole, 37-a counterplate;
161-1# middle through hole, 71-11# through hole, 91-12# through hole and 81-convex-concave die hole;
162-2# ejector rod hole, 72-21# ejector rod hole, 92-22# ejector rod hole and 82-23# ejector rod hole;
271-embedding through groove, 275-punching movable hole, 276-second punching movable hole, 273-die insert screw and 274-screw head hole;
371-3# middle through hole, 31-31# middle through hole, 21-32# middle through hole;
372-4# male die hole, 32-41# male die hole and 22-42# male die hole;
a No. 113-30 lower dowel bar II hole, a No. 33-39 dowel bar I hole and a No. 23-29 dowel bar I hole;
61-guide groove, 49-bottom groove; 181-male pin, 182-female spring pin; 401-pattern groove, 402-avoidance groove; 501-material edge groove, 79-punching guide hole;
100-stamping of sheet material, 101-compressor intermediate plate, 102-stamping of scrap.
Detailed Description
The present invention and its advantageous technical effects are further described in detail below with reference to the accompanying drawings and preferred embodiments. For convenience of explanation, the term "detachably disposed" is generally fixed by bolts in the prior art; some similar technical features are divided according to the common size specification, for example, the diameter is described by using phi and a specific numerical value, and in practical application, the corresponding numerical value can be adjusted according to actual needs and is not fixed.
Referring to fig. 1 to 26, a stamping die for a middle plate of a compressor according to a preferred embodiment of the present invention includes a composite die for stamping a stamping plate into a blank of the middle plate of the compressor, the composite die includes an upper die assembly and a lower die assembly disposed opposite to each other,
referring to fig. 2 to 5, preferably, the upper die assembly comprises an upper die plate 7, an upper fixing plate 8, an upper backing plate 9, a male and female die 16, a phi 7 hole upper ejector pin i 10, a phi 9.5 hole upper ejector pin i 11, a phi 7 hole upper ejector pin ii 12, a phi 9.5 hole upper ejector pin ii 13, a phi 31.2 hole upper ejector pin i 14, and a phi 31.2 hole upper ejector pin ii 15; wherein the content of the first and second substances,
the upper template 7 is used for bearing the components in the upper template component and is arranged above the lower template component;
the upper backing plate 9 is detachably arranged below the upper template 7 and is used for protecting the upper template 7 and bearing the force transmitted by the punch-die 16;
the upper fixing plate 8 is detachably arranged below the upper backing plate 9 and used for fixing the punch-die 16, and a convex-concave die hole 81 for fixing the punch-die 16 is formed in the upper fixing plate 8;
the male die and the female die 16 are detachably arranged below the upper fixing plate 8, male die holes 81 fixed on the upper fixing plate 8 at the outer side of the upper part of the male die and the female die 16 are used for stamping the shape of the compressor intermediate plate blank, and the shape of the male die and the female die 16 is matched with the shape of the compressor intermediate plate blank; referring to fig. 20, a # 1 middle through hole 161 for the phi 31.2 upper ejector rod ii 15 to move up and down is formed in the middle of the punch-die 16, and the phi 31.2 upper ejector rod ii 15 can be movably arranged in the # 1 middle through hole 161 up and down; the upper template 7 and the upper backing plate 9 are respectively provided with a middle coaxial through hole which is coaxially opposite to the 1# middle through hole 161, and the middle coaxial through holes are respectively a 11# through hole 71 and a 12# through hole 91 from top to bottom; the phi 31.2 hole upper ejector rod I14 can movably penetrate through the No. 10 through hole 71, the No. 20 through hole 91 and the No. 30 through hole 81 up and down to be connected with the phi 31.2 hole upper ejector rod II 15 into a whole;
referring to fig. 20, a plurality of 2# ejector rod holes 162 are formed at the edge of the male and female dies 16, and the upper ejector rod i 10 in the phi 7 hole and the upper ejector rod i 11 in the phi 9.5 hole can be movably arranged in the corresponding 2# ejector rod holes 162 up and down; the upper template 7, the upper backing plate 9 and the upper fixing plate 8 are respectively provided with a plurality of groups of coaxial ejector rod holes which are respectively coaxially opposite to each 2# ejector rod hole 162, and each group of coaxial ejector rod holes respectively correspond to a 21# ejector rod hole 72, a 22# ejector rod hole 92 and a 23# ejector rod hole 82 from top to bottom; the phi 7 hole upper ejector rod II 12 and the phi 9.5 hole upper ejector rod II 13 can vertically and movably penetrate through the corresponding 21# ejector rod hole 72, 22# ejector rod hole 92 and 23# ejector rod hole 82 respectively, the phi 7 hole upper ejector rod I10 and the phi 7 hole upper ejector rod II 12 are connected into a whole, and the phi 9.5 hole upper ejector rod I11 and the phi 9.5 hole upper ejector rod II 13 are connected into a whole;
referring to fig. 2 to 5, preferably, the lower die assembly comprises a lower die plate 1, a lower backing plate 2, a lower fixing plate 3, a female die 4, a lower dowel bar i 29, a lower dowel bar ii 30, a female die insert 27, a back pressure plate 37, a phi 31.2 round-hole male die 34, a phi 7 round-hole male die 35 and a phi 9.5 round-hole male die 36; wherein the content of the first and second substances,
the lower template 1 is used for bearing the components in the lower die component and is arranged below the upper die component;
the lower backing plate 2 is detachably arranged on the lower template 1 and used for protecting the lower template 1 and bearing the force transmitted by the round hole male dies;
the lower fixing plate 3 is detachably arranged on the lower backing plate 2 and is used for fixing the female die, all round hole male dies and all round hole male dies;
the female die 4 is detachably arranged on the lower fixing plate 3, and referring to fig. 14, the female die 4 is provided with an embedded through groove 271 for accommodating the die insert 27;
the preferable structure diagrams of the lower template 1, the lower cushion plate 2, the lower fixing plate 3 and the female die 4 are shown in fig. 11-14;
the die insert 27 is fixed in the insert through groove 271 of the die 4, the upper surface of the die insert 27 is flush with the upper surface of the die 4, referring to fig. 21, the die insert 27 is provided with a stamping movable hole 275 which is also used as a stamping groove of the intermediate plate blank of the compressor and a guide hole of the counter pressure plate 37;
the counter pressure plate 37 is movably arranged in the punching movable hole 275 of the die insert 27 up and down, the height of the counter pressure plate 37 is smaller than that of the punching movable hole 275, referring to fig. 23, the counter pressure plate 37 is provided with a 3# middle through hole 371 and a plurality of 4# male die holes 372; in a normal state, the upper surface of the counter-pressure plate 37 is exposed upward from the punching movable hole 275 of the die insert 27;
the preferred structural configurations of the die insert 27 and the counter-pressure plate 37 are shown in fig. 21 and 23;
the lower dowel bar I29 is connected to the bottom of the counter pressure plate 37, and lower holes I for the lower dowel bar I29 to penetrate downwards are formed in the lower fixing plate 3 and the lower backing plate 2 and are respectively a hole I33 of a dowel bar No. 39 and a hole I23 of the dowel bar No. 29;
a lower dowel bar II 30 connected with the lower end of the lower dowel bar I29, a No. 30 lower dowel bar II hole 113 for the lower dowel bar II 30 to penetrate downwards is arranged on the lower template 1,
referring to fig. 24, a phi 31.2 round hole male die 34 is used for punching a phi 31.2 round hole on the intermediate plate blank body of the compressor;
referring to fig. 25, a phi 7 round hole male die 35 is used for punching a phi 7 round hole on the intermediate plate blank body of the compressor;
referring to fig. 26, a phi 9.5 round hole male die 36 is used for punching a phi 9.5 round hole on the intermediate plate blank body of the compressor;
the position and specification of the 3# middle through hole 371 are matched and corresponding to the 1# middle through hole 161 on the punch-die 16, and the position, specification and number of the 4# punch-die holes 372 are matched and corresponding to the 2# ejector rod holes 162 on the punch-die 16;
the lower fixing plate 3 and the lower backing plate 2 are respectively provided with a # 31 middle through hole 31 and a # 32 middle through hole 21 which are coaxially opposite to the # 3 middle through hole 371; the lower fixing plate 3 and the lower backing plate 2 are respectively provided with a plurality of groups of coaxial male die holes which are coaxially opposite to each No. 4 male die hole 372, and each group of coaxial male die holes are respectively corresponding to No. 41 male die holes 32 and No. 42 male die holes 22 from top to bottom;
the phi 31.2 round hole male die 34 can movably penetrate through the 32# middle through hole 21, the 31# middle through hole 31 and the 3# middle through hole 371 in sequence, the upper end of the round hole male die is flush with the upper surface of the female die 4, and the lower end of the round hole male die is detachably fixed on the lower cushion plate 2;
the phi 7 round hole male die 35 and the phi 9.5 round hole male die 36 can movably penetrate through the corresponding 41# male die hole 32, 42# male die hole 22 and 4# male die hole 372 in sequence, the upper ends of the round hole male dies are flush with the upper surface of the female die 4, and the lower ends of the round hole male dies are detachably fixed on the lower cushion plate 2.
Referring to fig. 2 to 5, preferably, a guide plate 6 is arranged below the upper template 7, the guide plate 6 is suspended on the upper template 7 through a guide post 19 in a vertically movable manner, and a guide groove 61 for moving the upper backing plate 9, the upper fixing plate 8 and the punch-die 16 is arranged on the guide plate 6; a material pressing plate 5 is arranged below the guide plate 6, and the material pressing plate 5 is detachably fixed below the guide plate 6; the top of the material pressing plate 5 is provided with an upper force transmission ejector rod 17; the lower end of the upper transmission ejector rod 17 is fixed at the top of the material pressing plate 5, and the upper end of the upper transmission ejector rod movably extends out of the upper side of the upper template 7 after sequentially passing through the guide groove 61, the upper fixing plate 8, the upper padding plate 9 and the upper template 7.
Referring to fig. 2 to 5, in order to perform the stamping process more accurately, a locking pin 18 for guiding and positioning the stamping of the female die 4 and the pressure plate 5 is preferably arranged between the upper die assembly and the lower die assembly; the male pin 181 of the locking pin 18 is arranged on the pressure plate 5, and the lower end of the male pin 181 extends downwards from the lower surface of the pressure plate 5; the spring female pin 182 of the locking pin 18 is vertically arranged on the lower template 1, the lower backing plate 2, the lower fixing plate 3 and the female die 4, and the spring female pin 182 is vertically matched and opposite to the male pin 181.
Referring to fig. 2 to 5, preferably, the die 4 and the die insert 27 form a die assembly, the upper surface of the die assembly on the feeding side is provided with a pattern groove 401 for storing oil, the shape of the pattern groove 401 is matched with the shape of the lower surface of the compressor intermediate plate blank obtained by stamping, and the depth of the pattern groove 401 is 0.3 mm; the lower surface of the pressure plate 5 is also provided with a pattern groove 401 matched and corresponding to the pattern groove, two sides of the lower surface of the pressure plate 5 are provided with material edge grooves 501 suitable for punching burrs at two edges of a plate, and the upper surfaces of the female die 4 and the female die insert 27 are also provided with material edge grooves 501 suitable for punching burrs at two edges of a plate; when the stamping plate is continuously stamped, the position of the plate to be stamped at the back is just in the pattern groove 401;
an avoiding groove 402 for avoiding burrs is formed in the upper surface of the discharging side of the female die assembly, the appearance of the avoiding groove 402 is matched with the appearance of the lower surface of a compressor intermediate plate blank obtained by stamping to be the same, and the depth of the avoiding groove 402 is 0.3 mm; when the stamping plate is continuously stamped, the stamping blank part of the stamping plate in the front just falls on the avoidance groove 402.
Referring to fig. 2 to 5, in order to facilitate the limitation of the movable space above the upper ejector rod II 15 of the phi 31.2 hole; preferably, the diameter of the No. 1 middle through hole 161 is larger than that of the middle coaxial through hole, and the outer diameter of the phi 31.2 hole upper ejector rod II 15 is larger than that of the phi 31.2 hole upper ejector rod I14; stamping guide holes 79 for limiting and guiding during stamping are arranged at the corners of the upper template 7 and the lower template 1; the guide post 19 is nested with the stamped guide hole 79.
Referring to fig. 2 to 5 and 22, in order to facilitate the fixing and processing of the die insert 27, preferably, a bottom groove 49 is formed in the bottom of the die 4, the bottom groove 49 is located below the insert through groove 271, the width of the bottom groove 49 is greater than that of the insert through groove 271, a die insert backing plate 28 is arranged in the bottom groove 49, and the die insert backing plate 28 and the die insert 27 are connected into a whole through a die insert screw 273; the die 4 presses the die insert backing plate 28 against the upper surface of the lower fixing plate 3, and the die insert backing plate 28 is provided with a second movable stamping hole 276 which is matched with the movable stamping hole 275 of the die insert 27 and is overlapped up and down.
Referring to fig. 2 to 5, preferably, a screw head hole 274 is formed in the lower fixing plate 3, the position of the screw head hole 274 corresponds to the position of the die insert screw 273 in a matching manner, and the screw head of the die insert screw 273 is located in the screw head hole 274.
The composite die is arranged on a proper punching machine, so that the intermediate plate of the compressor can be finely punched, and the working process is as follows:
step 1, referring to fig. 6, connecting the upper end of an upper ejector rod I14 for punching a phi 31.2 hole with a punching machine; the upper ends of the phi 7 hole upper ejector rod I10 and the phi 9.5 hole upper ejector rod I11 are connected with a punching machine; the lower end of the lower dowel bar II 30 is connected with a punching machine; the punching plate penetrates through the upper die assembly and the lower die assembly;
the upper template 7, the upper backing plate 9, the upper fixing plate 8 and the punch-die 16 are kept still, and the punching machine controls the lower template 1, the lower backing plate 2, the lower fixing plate 3 and the die 4 to drive the counter pressing plate 37 to press upwards together; the counter-pressure plate 37 punches the intermediate plate blank of the compressor from the punched plate material under the coordination of the punch-die 16 and forms the intermediate plate blank in the punching movable hole 275; punching a phi 31.2 hole, a phi 7 hole and a phi 9.5 hole in the intermediate plate blank of the compressor respectively by a phi 31.2 round hole male die 34, a phi 7 round hole male die 35 and a phi 9.5 round hole male die 36 under the coordination of the male and female dies 16;
under the combined action of the stamping of the back pressure plate 37 and the jacking lattices of the phi 31.2 round hole male die 34, the phi 7 round hole male die 35 and the phi 9.5 round hole male die 36, stamping waste materials correspondingly formed by each hole punched in the intermediate plate blank of the compressor respectively enter the corresponding 1# intermediate through hole 161 and 2# ejector rod hole 162 in the male die and the female die 16 respectively;
in the lower die assembly, the lower dowel bar II 30 and the lower dowel bar I29 are controlled by the punch to move upwards and reset, so that the counter pressure plate 37 is driven to move upwards and reset, a punched intermediate plate blank of the compressor is ejected out of the punching movable hole 275 of the die insert 27 and separated from the upper surface of the counter pressure plate 37, and simultaneously, the height of the upper surface of the counter pressure plate 37 and the upper surface of the die insert 27 are restored to be in a flush state.
After the fine blanking process is finished, the conventional outer circle turning process, small hole drilling process, double-sided grinding process and cleaning process can be adopted for subsequent treatment to obtain a finished product.
As another improved embodiment, in order to fully utilize the stamped sheet, reduce the waste of leftover materials and improve the working efficiency, on the basis of the foregoing implementation, referring to fig. 11 to 21, preferably, 2 through grooves 271 are provided on the female die 4, the 2 through grooves 271 are arranged in tandem and are staggered end to end in the left and right direction, and the staggered intersections of the 2 through grooves 271 are communicated;
the die insert 27 is 2 and is respectively fixed in the insert through groove 271 of the die 4;
the counter-pressure plate 37, the lower dowel bar I29, the lower dowel bar II 30, the phi 31.2 round-hole male die 34, the phi 7 round-hole male die 35 and the phi 9.5 round-hole male die 36 form a counter-pressure lifting plate assembly, the counter-pressure lifting plate assembly is 2, and the counter-pressure plates 37 are respectively and correspondingly arranged in the stamping movable holes 275 of the corresponding die inserts 27 to form a double-station lower die assembly with a double-station structure;
similarly, the convex-concave die assembly is composed of a convex-concave die 16, a phi 7 hole upper ejector rod I10, a phi 9.5 hole upper ejector rod I11, a phi 7 hole upper ejector rod II 12, a phi 9.5 hole upper ejector rod II 13, a phi 31.2 hole upper ejector rod I14 and a phi 31.2 hole upper ejector rod II 15, the convex-concave die assembly is 2 pieces, and the double-station upper die assembly matched with the double-station lower die assembly is formed.
The double-station structure is adopted, two compressor middle plates can be stamped simultaneously in each stamping action, the two compressor middle plates are not transversely arranged in parallel but transversely staggered at the stamping positions corresponding to the stamping plate, so that the width of the stamping plate can be smaller than the outer diameters of the two compressor middle plates, and people cannot expect that the later compressor middle plate fully utilizes the leftover materials of the staggered part at the back of the former compressor middle plate on the stamping plate, thereby skillfully reducing the loss of the stamping plate, saving energy and protecting environment.
The invention is not limited to the embodiments disclosed and described above, but rather, modifications and variations of the invention are possible within the scope of the invention as defined in the claims.
Claims (8)
1. A stamping die for a compressor intermediate plate comprises a composite die for stamping a stamping plate into a compressor intermediate plate blank, the composite die comprises an upper die component and a lower die component which are arranged oppositely up and down, and is characterized in that,
the upper die assembly comprises an upper die plate (7), an upper fixing plate (8), an upper base plate (9), a male die and a female die (16), a phi 7 hole upper ejector rod I (10), a phi 9.5 hole upper ejector rod I (11), a phi 7 hole upper ejector rod II (12), a phi 9.5 hole upper ejector rod II (13), a phi 31.2 hole upper ejector rod I (14) and a phi 31.2 hole upper ejector rod II (15); wherein the content of the first and second substances,
an upper template (7) used for carrying the components in the upper die component and arranged above the lower die component;
the upper backing plate (9) is detachably arranged below the upper template (7) and is used for protecting the upper template (7) and bearing the force transmitted by the punch-die (16);
the upper fixing plate (8) is detachably arranged below the upper backing plate (9) and is used for fixing the punch-die (16), and a convex-concave die hole (81) for fixing the punch-die (16) is formed in the upper fixing plate (8);
the punch-die (16) is detachably arranged below the upper fixing plate (8), a convex-concave die hole (81) fixed on the upper fixing plate (8) at the outer side of the upper part of the punch-die (16) is used for stamping the shape of the compressor intermediate plate blank, and the shape of the punch-die (16) is matched with that of the compressor intermediate plate blank;
the middle of the punch-die (16) is provided with a # 1 middle through hole (161) for the phi 31.2 upper ejector rod II (15) to move up and down, and the phi 31.2 upper ejector rod II (15) can be movably arranged in the # 1 middle through hole (161) up and down; the upper template (7) and the upper backing plate (9) are respectively provided with a middle coaxial through hole with a 1# middle through hole (161) coaxial and opposite to each other, and the middle coaxial through holes are respectively a 11# through hole (71) and a 12# through hole (91) from top to bottom; the phi 31.2 hole upper ejector rod I (14) can movably penetrate through the No. 10 through hole 71, the No. 20 through hole 91 and the No. 30 through hole 81 up and down to be connected with the phi 31.2 hole upper ejector rod II (15) into a whole;
a plurality of 2# ejector rod holes (162) are formed in the edge of the male and female die (16), and an upper ejector rod I (10) with a phi 7 hole and an upper ejector rod I (11) with a phi 9.5 hole can be movably arranged in the corresponding 2# ejector rod holes (162) up and down; the upper template (7), the upper backing plate (9) and the upper fixing plate (8) are respectively provided with a plurality of groups of coaxial ejector rod holes which are coaxially opposite to each 2# ejector rod hole (162), and each group of coaxial ejector rod holes are respectively a 21# ejector rod hole (72), a 22# ejector rod hole (92) and a 23# ejector rod hole (82) from top to bottom; the phi 7 hole upper ejector rod II (12) and the phi 9.5 hole upper ejector rod II (13) can vertically and movably penetrate through the corresponding 21# ejector rod hole (72), 22# ejector rod hole (92) and 23# ejector rod hole (82), the phi 7 hole upper ejector rod I (10) and the phi 7 hole upper ejector rod II (12) are connected into a whole, and the phi 9.5 hole upper ejector rod I (11) and the phi 9.5 hole upper ejector rod II (13) are connected into a whole;
the lower die assembly comprises a lower die plate (1), a lower backing plate (2), a lower fixing plate (3), a female die (4), a lower dowel bar I (29), a lower dowel bar II (30), a female die insert (27), a back-pressure plate (37), a phi 31.2 round-hole male die (34), a phi 7 round-hole male die (35) and a phi 9.5 round-hole male die (36); wherein the content of the first and second substances,
the lower template (1) is used for bearing the components in the lower die component and is arranged below the upper die component;
the lower backing plate (2) is detachably arranged on the lower template (1) and is used for protecting the lower template (1) and bearing the force transmitted by the round hole male dies;
the lower fixing plate (3) is detachably arranged on the lower backing plate (2) and is used for fixing the female die, all round hole male dies and all round hole male dies;
the female die (4) is detachably arranged on the lower fixing plate (3), and the female die (4) is provided with an embedded through groove (271) for accommodating the female die insert (27);
the die insert (27) is fixed in the insert through groove (271) of the die (4), the upper surface of the die insert (27) is flush with the upper surface of the die (4), and the die insert (27) is provided with a stamping movable hole (275) which is also used as a stamping groove of a compressor middle plate blank and a guide hole of a back pressure plate (37);
the counter pressure plate (37) is movably arranged in a stamping movable hole (275) of the die insert (27) up and down, the height of the counter pressure plate (37) is smaller than that of the stamping movable hole (275), and the counter pressure plate (37) is provided with a 3# middle through hole (371) and a plurality of 4# convex die holes (372); under normal conditions, the upper surface of the counter pressure plate (37) is exposed upwards from the punching movable hole (275) of the die insert (27);
the lower dowel bar I (29) is connected to the bottom of the counter pressure plate (37), and lower dowel bar I holes for the lower dowel bar I (29) to penetrate downwards are formed in the lower fixing plate (3) and the lower backing plate (2) and are a No. 39 dowel bar I hole (33) and a No. 29 dowel bar I hole (23) respectively;
a lower dowel bar II (30) connected with the lower end of the lower dowel bar I (29), a No. 30 lower dowel bar II hole (113) for the lower dowel bar II (30) 9 to penetrate out downwards is arranged on the lower template (1),
a phi 31.2 round hole male die (34) used for punching a phi 31.2 round hole on the intermediate plate blank body of the compressor;
a phi 7 round hole male die (35) used for punching a phi 7 round hole on the intermediate plate blank body of the compressor;
a phi 9.5 round hole male die (36) used for punching a phi 9.5 round hole on the intermediate plate blank body of the compressor;
the position and specification of the 3# middle through hole (371) are matched and correspond to the 1# middle through hole (161) on the punch-die (16), and the position, specification and quantity of the 4# punch-die holes (372) are matched and correspond to the 2# ejector rod holes (162) on the punch-die (16);
the lower fixing plate (3) and the lower backing plate (2) are respectively provided with a 31# middle through hole (31) and a 32# middle through hole (21) which are coaxially opposite to the 3# middle through hole (371); a plurality of groups of coaxial male die holes which are coaxially opposite to each 4# male die hole (372) are respectively arranged on the lower fixing plate (3) and the lower backing plate (2), and each group of coaxial male die holes are respectively a 41# male die hole (32) and a 42# male die hole (22) from top to bottom;
a phi 31.2 round hole male die (34) can movably penetrate through the 32# middle through hole (21), the 31# middle through hole (31) and the 3# middle through hole (371) in sequence, the upper end of the phi 31.2 round hole male die is flush with the upper surface of the female die (4), and the lower end of the phi 31.2 round hole male die is detachably fixed on the lower cushion plate (2);
phi 7 round hole male dies (35) and phi 9.5 round hole male dies (36) can movably penetrate through the corresponding 41# male die holes (32), 42# male die holes (22) and 4# male die holes (372), the upper ends of the round hole male dies are flush with the upper surface of the female die (4), and the lower ends of the round hole male dies are detachably fixed on the lower backing plate (2).
2. The press die for the intermediate plate of the compressor as set forth in claim 1, wherein: a guide plate (6) is arranged below the upper template (7), the guide plate (6) can be movably suspended on the upper template (7) up and down through a guide post (19), and a guide groove (61) for the movement of an upper backing plate (9), an upper fixing plate (8) and a punch-die (16) is arranged on the guide plate (6); a material pressing plate (5) is arranged below the guide plate (6), and the material pressing plate (5) is detachably fixed below the guide plate (6); an upper force transmission ejector rod (17) is arranged at the top of the material pressing plate (5); the lower end of the upper force transmission ejector rod (17) is fixed at the top of the pressure plate (5), and the upper end of the upper force transmission ejector rod movably extends out of the upper side of the upper template (7) after sequentially passing through the guide groove (61), the upper fixing plate (8), the upper padding plate (9) and the upper template (7).
3. The press die for the intermediate plate of the compressor as set forth in claim 2, wherein: a locking pin (18) for stamping, guiding and positioning the female die (4) and the pressure plate (5) is arranged between the upper die component and the lower die component; a male pin (181) of the locking pin (18) is arranged on the pressure plate (5), and the lower end of the male pin (181) extends downwards from the lower surface of the pressure plate (5);
the spring female pin (182) of the locking pin (18) is vertically arranged on the lower template (1), the lower backing plate (2), the lower fixing plate (3) and the female die (4), and the spring female pin (182) is vertically matched and opposite to the male pin (181).
4. A stamping die for an intermediate plate of a compressor as claimed in claim 3, wherein: the die assembly is formed by the die (4) and the die insert (27), a pattern groove (401) for storing oil is formed in the upper surface of the feeding side of the die assembly, the shape of the pattern groove (401) is matched with the shape of the lower surface of a compressor intermediate plate blank obtained by stamping, and the depth of the pattern groove (401) is 0.3 mm; the lower surface of the pressure plate (5) is also provided with pattern grooves (401) matched and corresponding to the pattern grooves, two sides of the lower surface of the pressure plate (5) are provided with material edge grooves (501) suitable for punching burrs at two edges of a plate, and the upper surfaces of the female die (4) and the female die insert (27) are also provided with material edge grooves (501) suitable for punching burrs at two edges of the plate;
an avoiding groove (402) for avoiding burrs is formed in the upper surface of the discharging side of the female die assembly, the appearance of the avoiding groove (402) is matched with the appearance of the lower surface of the compressor intermediate plate blank obtained through stamping, and the depth of the avoiding groove (402) is 0.3 mm.
5. The press die for the intermediate plate of the compressor as set forth in claim 4, wherein: the diameter of the 1# middle through hole (161) is larger than that of the middle coaxial through hole, and the outer diameter of the phi 31.2 hole upper ejector rod II (15) is larger than that of the phi 31.2 hole upper ejector rod I (14).
6. The press die for the intermediate plate of the compressor as set forth in claim 5, wherein: the bottom of the female die (4) is provided with a bottom groove (49), the bottom groove (49) is positioned below the through embedding groove (271), the width of the bottom groove (49) is larger than that of the through embedding groove (271), a female die insert backing plate (28) is arranged in the bottom groove (49), and the female die insert backing plate (28) and the female die insert (27) are connected into a whole through a female die insert screw (273); the die insert base plate (28) is tightly pressed on the upper surface of the lower fixing plate (3) by the die (4), and a second punching movable hole (276) which is matched with and identical with the punching movable hole (275) of the die insert (27) and is overlapped up and down is arranged on the die insert base plate (28).
7. The press die for an intermediate plate of a compressor as claimed in claim 6, wherein: the lower fixing plate (3) is provided with a screw head hole (274), the position of the screw head hole (274) corresponds to the position of the die insert screw (273) in a matching mode, and the screw head of the die insert screw (273) is located in the screw head hole (274).
8. The press die for an intermediate plate of a compressor as claimed in claim 7, wherein: the female die (4) is provided with 2 pieces of embedded through grooves (271), the 2 pieces of embedded through grooves (271) are arranged in tandem and are staggered and intersected end to end in the left and right directions, and the staggered and intersected positions of the 2 pieces of embedded through grooves (271) are communicated;
the die insert (27) is 2 blocks and is respectively fixed in the insert through groove (271) of the die (4);
the back pressure plate assembly comprises 2 back pressure lifting plate assemblies, wherein the back pressure plates (37), the lower dowel bar I (29), the lower dowel bar II (30), the phi 31.2 round hole male die (34), the phi 7 round hole male die (35) and the phi 9.5 round hole male die (36) are respectively and correspondingly arranged in the stamping movable holes (275) of the corresponding die inserts (27) to form a double-station lower die assembly with a double-station structure;
in a similar way, the convex-concave die assembly is composed of a convex-concave die (16), a phi 7 hole upper mandril I (10), a phi 9.5 hole upper mandril I (11), a phi 7 hole upper mandril II (12), a phi 9.5 hole upper mandril II (13), a phi 31.2 hole upper mandril I (14) and a phi 31.2 hole upper mandril II (15), the convex-concave die assembly is 2 pieces, and a double-station upper die assembly matched with the double-station lower die assembly is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020692901.2U CN212945007U (en) | 2020-04-29 | 2020-04-29 | Stamping die of compressor intermediate plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020692901.2U CN212945007U (en) | 2020-04-29 | 2020-04-29 | Stamping die of compressor intermediate plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212945007U true CN212945007U (en) | 2021-04-13 |
Family
ID=75373804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020692901.2U Active CN212945007U (en) | 2020-04-29 | 2020-04-29 | Stamping die of compressor intermediate plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212945007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305211A (en) * | 2021-05-13 | 2021-08-27 | 佛山市钜泽益精密科技有限公司 | Air conditioner sliding vane machining method |
-
2020
- 2020-04-29 CN CN202020692901.2U patent/CN212945007U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305211A (en) * | 2021-05-13 | 2021-08-27 | 佛山市钜泽益精密科技有限公司 | Air conditioner sliding vane machining method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202212467U (en) | Forming mold for high-strength automotive anti-collision beam | |
| CN201172086Y (en) | Novel fine stamping die | |
| CN101301670B (en) | Container top board forming mold | |
| CN202180137U (en) | Multi-station progressive die | |
| CN201044931Y (en) | Fine stamping die | |
| CN101733327A (en) | Side hole cover progressive die | |
| CN110695205B (en) | Blanking-punching-flanging-deep drawing composite die and composite process for automobile rear axle flange dust cover | |
| CN201684835U (en) | Deep-drawing progressive die | |
| CN201304446Y (en) | Compound mould of metal skeleton for car sealing element | |
| CN111375686A (en) | Fine blanking process method for intermediate plate of compressor | |
| CN212945007U (en) | Stamping die of compressor intermediate plate | |
| CN105251867A (en) | Rear axle locking gasket die capable of punching 24 holes in two steps and machining process of die | |
| CN109731974B (en) | VL-shaped ball cage machining and forming assembly and machining and forming method thereof | |
| CN206366606U (en) | Buckle forming mould in a kind of stainless steel battery cover | |
| CN202356513U (en) | Punching progressive die for mounting bracket of automobile body | |
| CN206997509U (en) | Latch hook fine blanking die | |
| CN2640113Y (en) | Winding automobile generator stator iron core shaping device | |
| CN201205578Y (en) | Container top board forming mold | |
| CN105478563A (en) | Egg-shaped pressure-resisting shell manufacturing device and method | |
| CN207941851U (en) | A kind of novel side piercing die | |
| CN205183467U (en) | Car front longitudinal assembly reinforcement blanking die | |
| CN207271918U (en) | A kind of shelves shift fork planar member fine blanking die | |
| CN210435190U (en) | Die for producing locking plate | |
| CN207533786U (en) | It is a kind of to rivet progressive die structure device without button point compression bar | |
| CN208895000U (en) | A kind of hollow part pneumatics bending and molding class progressive die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |