CN219924296U - Wedge stamping die - Google Patents

Abstract

The utility model discloses a wedge stamping die which comprises a lower die and an upper die, wherein the lower die comprises a lower die base, a placing block, a first movable block and a second movable block, through holes are concavely formed in the placing block, the placing block is used for placing an automobile assembly part, the first movable block and the second movable block are respectively arranged on two opposite sides of the placing block and are movably connected with the lower die base, one surface of the first movable block and the second movable block, which is far away from the placing block, is provided with a flanging die, the other surface of the first movable block and the second movable block is provided with a flanging male die, the surface of the flanging die is provided with a push rod for punching, the upper die comprises a first inserting rod, a second inserting rod and an upper die base, the first inserting rod and the second inserting rod are oppositely arranged on two sides of the upper die base at intervals, the first inserting rod and the second inserting rod are respectively provided with inclined surfaces matched with the first movable block and the second movable block, and the length of one of the first inserting rod and the second inserting rod is longer than that of the other inserting rod. The wedge stamping die can improve the product qualification rate.

Description

Wedge stamping die

Technical Field

The embodiment of the utility model belongs to the technical field of dies, and particularly relates to a wedge stamping die.

Background

The automobile assembly part is used for connecting automobile parts on two sides, and the traditional bolt connection cannot be applicable because the automobile assembly part is designed in a complex shape to meet the mechanical property, the structural strength and the special modeling, and can only be concavely arranged on the side walls on two sides of the automobile assembly part to form flanging so as to realize the connection of the automobile parts on two sides.

At present, when manufacturing an automobile assembly, a coaxial reference hole is usually punched on the automobile assembly, please refer to fig. 1 and 2, then a flanging die is used to punch a flanging of the automobile assembly based on the reference hole, and please refer to fig. 3 and 4, however, the method for punching and flanging needs to use two flanging dies and two punching devices to punch and flanging on one side and the other side of the automobile assembly respectively, which leads to error in centering of the flanging and increase of rejection rate of products due to replacement of the punching devices and the flanging dies.

Disclosure of Invention

Aiming at the defects or improvement demands of the prior art, the utility model provides a wedge stamping die, which aims to improve the product qualification rate of automobile assembly parts.

In order to achieve the above object, the present utility model provides a cam stamping die, comprising:

the lower die comprises a lower die base, a placing block, a first movable block and a second movable block, wherein the placing block is arranged on the lower die base, a through hole penetrating through the placing block is concavely formed in the placing block, the placing block is used for placing an automobile assembly part, the first movable block and the second movable block are respectively arranged on two opposite sides of the placing block, the first movable block and the second movable block are movably connected with the lower die base, one surface of the first movable block and the second movable block, which is far away from the placing block, is provided with an inclined surface, one surface of the first movable block and one surface of the second movable block is provided with a flanging die, the other surface of the flanging die is provided with a push rod, and the rod diameter of the push rod is smaller than the aperture of a reference hole;

the upper die comprises a first inserting rod, a second inserting rod and an upper die holder, wherein the first inserting rod and the second inserting rod are oppositely arranged at two sides of the upper die holder at intervals, inclined planes matched with the first movable block and the second movable block are respectively arranged on the first inserting rod and the second inserting rod, when the upper die holder is close to the lower die holder, the inclined planes of the first inserting rod and the second inserting rod can be contacted with the inclined planes of the first movable block and the second movable block, and the length of one of the first inserting rod and the second inserting rod is longer than that of the other one;

the pin penetrating device comprises a pin penetrating device, wherein the pin penetrating device is provided with a first hitting end and a second hitting end which are oppositely arranged, the shaft diameter of the first hitting end is smaller than the hole diameter of the reference hole, and the shaft diameter of the second hitting end is larger than the hole diameter of the reference hole.

In an embodiment, a first fixing block and a second fixing block are arranged on the lower die holder, the first fixing block is fixed on one side, far away from the placing block, of the first movable block, and the second fixing block is fixed on one side, far away from the placing block, of the second movable block.

In one embodiment, the inclined surfaces of the first inserted link and the first movable block are smooth and flat;

the inclined surfaces of the second inserted link and the second movable block are smooth and flat.

In an embodiment, the lower die holder is provided with a supporting step, the supporting step is provided with an upper end face and a lower end face, the upper end face is used for fixing the placing block, the lower end face carries the first movable block, a first sliding block is arranged on one face, close to the lower end face, of the first movable block, and a first sliding plate is paved on the surface of the lower end face;

the lower die holder is also provided with a supporting table for bearing the second movable block, a second sliding plate is laid on the surface of the supporting table, and a second sliding block is arranged on one surface, close to the supporting table, of the second movable block.

In one embodiment, the support table is inclined towards the placement block away from the lower die holder.

In an embodiment, the cam stamping die further comprises a return spring, wherein the return spring is used for deforming when the upper die holder is far away from the lower die holder so as to drive the first movable block and the second movable block to return.

In an embodiment, the return spring comprises a first spring and a second spring, the first spring is arranged on one side of the first movable block, which is close to the placing block, and the second spring is arranged on one side of the second movable block, which is close to the placing block.

In one embodiment, the support step has a step connection surface, and the first spring is disposed on the step connection surface;

the height of the supporting table is lower than that of the supporting step, and the second spring is arranged on one side of the second sliding block, which is close to the supporting table.

In an embodiment, the wedge stamping die further comprises bullet-shaped positioning needles, wherein the bullet-shaped positioning needle head is bullet-shaped, and the bullet-shaped positioning needles are arranged on two sides of the extending direction of the through hole.

In an embodiment, the penetrating pin is penetrated with a travel groove along the length direction, the placement block is penetrated with a limit groove, and the length of the limit groove is shorter than that of the travel groove;

the wedge stamping die further comprises a stop pin, one end of the stop pin is arranged in the travel groove, and the other end of the stop pin extends out of the limit groove.

In general, the above technical solutions conceived by the present utility model, compared with the prior art, enable the following beneficial effects to be obtained:

(1) According to the wedge stamping die, the first movable block and the second movable block which can be movably connected are arranged on the lower die holder, the flanging male die is arranged on one of the first movable block and the second movable block, the flanging female die is arranged on the other one of the first movable block and the second movable block, and the first inserting rod and the second inserting rod with different lengths are arranged to be connected with the upper die holder, so that the first inserting rod and the second inserting rod can be respectively contacted with the first movable block and the second movable block at different moments, the flanging male die and the flanging female die can respectively finish flanging processes at two sides at different moments, one procedure is achieved, the replacement of stamping equipment and the flanging die is avoided, errors in centering are avoided, the product qualification rate is improved, and meanwhile, the production and use costs can be reduced due to the fact that only one pair of wedge stamping die and one stamping equipment are adopted.

(2) According to the inclined wedge stamping die, the reset springs are arranged on one sides of the first movable block and the second movable block, which are close to the placing block, so that on one hand, when the upper die holder is far away from the lower die holder, the first movable block and the second movable block can be reset, and on the other hand, the first inserting rod and the second inserting rod can be prevented from being positioned.

Drawings

FIG. 1 is a front view of an automobile fitting without a flange;

FIG. 2 is a rear view of an unfurled automobile assembly;

FIG. 3 is a front view of a turned-up edge of an automobile fitting;

FIG. 4 is a rear view of the vehicle assembly shown with the flange;

FIG. 5 is a schematic structural diagram of a cam stamping die according to an embodiment of the present utility model;

FIG. 6 is an enlarged view of FIG. 1 at A;

FIG. 7 is an enlarged view of B in FIG. 1;

FIG. 8 is a schematic structural view of a supporting step of a cam stamping die according to an embodiment of the present utility model;

fig. 9 is an exploded view of a placement block of a cam stamping die according to an embodiment of the present utility model.

Like reference numerals denote like technical features throughout the drawings, in particular:

10. wedge stamping die; 11. a lower die; 111. a lower die holder; 112. placing a block; 1121. a through hole; 1122. a limit groove; 113. a first movable block; 1131. a flanging male die; 1132. a first slider; 114. a second movable block; 1141. a flanging female die; 1142. a push rod; 1143. a nitrogen spring; 1144. a second slider; 115. a first fixed block; 116. a second fixed block; 117. a support step; 1171. an upper end surface; 1172. a lower end surface; 1173. a step connection surface; 1174. a first slide plate; 118. a support table; 1181. a second slide plate; 12. an upper die; 121. a first plunger; 122. a second plunger; 123. an upper die holder; 13. a return spring; 131. a first spring; 132. a second spring; 14. bullet-shaped positioning needle; 15. pin penetration; 151. a first striking end; 152. a second striking end; 153. a travel groove; 16. a stop pin; 20. an automotive fitting; 21. a reference hole; 22. and flanging the automobile assembly part.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 5 to 9, the present utility model provides a cam stamping die 10, which includes a lower die 11, an upper die 12, and a penetrating pin 15.

The lower die 11 includes a lower die holder 111, a placement block 112, a first movable block 113, a second movable block 114, a first fixed block 115, and a second fixed block 116. The lower die holder 111 serves as a carrying platform for each component of the lower die 11, so that each component of the lower die 11 is arranged along the length direction of the lower die holder 111. The placing block 112 is disposed on the lower die holder 111, a through hole 1121 is concavely formed in the placing block 112, and the placing block 112 is used for placing the automobile assembly 20. Specifically, the through hole 1121 is recessed from one side of the placement block 112 and extends in the length direction of the lower die holder 111 to penetrate the other side of the placement block 112, and the aperture size of the through hole 1121 is identical to the diameter of the flange formed by punching the automobile fitting 20, and for example, when the aperture of the through hole is 10 cm, a flange having a diameter of 10 cm may be punched. Further, the first movable block 113 and the second movable block 114 are respectively disposed on two opposite sides of the placement block 112, and the first movable block 113 and the second movable block 114 are both movably connected with the lower die holder 111. Specifically, the first movable block 113 and the second movable block 114 are disposed on opposite sides of the placement block 112 along the length direction of the lower die holder 111, and the first movable block 113 and the second movable block 114 can both move along the length direction of the lower die holder 111, whereas the placement block 112 is disposed along the length direction of the lower die holder 111, and the through hole 1121 is concavely disposed in the extending direction of the through hole 1121, that is, the first movable block 113 and the second movable block 114 can both move relative to the through hole 1121. Further, the first movable block 113 and the second movable block 114 are provided with inclined surfaces on the side away from the placement block 112, one of the first movable block 113 and the second movable block 114 is provided with a flanging die 1141, and the other is provided with a flanging die 1131. Here, the surface of the flanging die 1141 is concavely provided to form a groove, the surface of the flanging die 1131 is convexly provided to form a protrusion, and the shaft diameter of the protrusion of the flanging die 1131 is larger than the aperture of the reference hole 21, specifically, in this embodiment, the flanging die 1131 is provided on the first movable block 113, and the flanging die 1141 is provided on the second movable block 114. Further, a push rod 1142 is arranged on the surface of the flanging die 1141, and the rod diameter of the push rod 1142 is smaller than the aperture of the reference hole 21. Specifically, the ejector rod 1142 is disposed in the groove and partially extends out of the flanging die 1141

Further, a nitrogen spring 1143 is further provided at the end of the ejector rod 1142. Here, the end of the mandrel 1142 for punching is referred to as a head end, and the end of the mandrel 1142 away from the head end is referred to as a tail end. It will be appreciated that the nitrogen spring 1143 is disposed at the top end of the ejector rod 1142, which is far away from the head end, and compared with a general spring, the nitrogen spring has the advantages of good wear resistance and stable spring force, so that on one hand, the use cost of the cam stamping die 10 can be reduced, and on the other hand, the punching stability of the ejector rod 1142 can be improved.

The upper die 12 comprises a first insert rod 121, a second insert rod 122 and an upper die holder 121, wherein inclined surfaces matched with the first movable block 113 and the second movable block 114 are respectively arranged on one sides of the first insert rod 121 and the second insert rod 122 away from the upper die holder 121. Specifically, in the present embodiment, the first insert rod 121 and the second insert rod 122 are disposed on both sides of the upper die holder 121 at the same direction and with the same inclination direction as the first movable block 113 and the second movable block 114, and when the upper die holder 121 approaches the lower die holder 111, the inclined surfaces of the first insert rod 121 and the second insert rod 122 can be in contact with the inclined surfaces of the first movable block 113 and the second movable block 114.

Further, one of the first and second plungers 121 and 122 has a longer length than the other. Specifically, in the present embodiment, the length of the second insert rod 122 is longer than the height of the first insert rod 121, so that when the distance between the upper die holder 121 and the lower die holder 111 is reduced, the inclined surface of the second insert rod 122 and the inclined surface of the second movable block 114 can be contacted more quickly than the inclined surface of the first insert rod 121 and the inclined surface of the first movable block 113.

The penetrating pin 15 has a first striking end 151 and a second striking end 152 which are disposed opposite to each other, the first striking end 151 having an axial diameter smaller than the aperture of the reference hole 21, and the second striking end 152 having an axial diameter larger than the aperture of the reference hole 21. Specifically, in the present embodiment, the shaft diameters of the first striking end 151 and the second striking end 152 are each smaller than the aperture of the through hole 1121, and the penetrating pin 15 can be disposed in the placement block 112.

In actual use, the lower die holder 111 remains stationary, the upper die holder 121 moves toward the lower die holder 111, and the cam stamping die 10 stamps the automobile assembly 20 with four stamping stages:

in the first stamping stage, the inclined surface of the second insert rod 122 contacts with the inclined surface of the second movable block 114, the inclined surface of the second insert rod 122 presses the inclined surface of the second movable block 114, the second movable block 114 is pressed by the second insert rod 122 to move towards the placing block 112, the ejector rod 1142 moves towards the automobile assembly 20 on the placing block 112, meanwhile, since the rod diameter of the ejector rod 1142 is smaller than the aperture of the reference hole 21, the ejector rod 1142 can enter the reference hole 21 on the side of the automobile assembly 20 close to the second movable block 114 and is abutted with the second striking end 152 of the penetrating pin 15 in the placing block 1121, and at the moment, the inclined surface of the first insert rod 121 is spaced from the inclined surface of the first movable block 113.

In the second stamping stage, the inner side surface of the second insert rod 122 contacts with the outer side surface of the second movable block 114, the second insert rod 122 does not press the second movable block 114 any more, and the first striking end 151 of the penetrating pin 15 protrudes from the reference hole 21 on the side of the automobile assembly 20 close to the first movable block 113 due to the fact that the shaft diameter of the first striking end 151 is smaller than the aperture of the reference hole 21, and at this time, the inclined surface of the first insert rod 121 is close to the inclined surface of the first movable block 113.

When the first insert rod 121 is in the third stamping stage, the inclined surface of the first insert rod 121 is in contact with the inclined surface of the first movable block 113, the inclined surface of the first insert rod 121 extrudes the inclined surface of the first movable block 113, the first movable block 113 moves towards the placing block 112 due to the extrusion force of the first insert rod 121, and the flange punch 1131 convex part can punch the automobile assembly flange 22 towards the second movable block on the basis of the automobile assembly 20 reference hole because the shaft diameter of the flange punch 1131 convex part is larger than the aperture of the automobile assembly 20 reference hole, and meanwhile, the flange punch 1131 convex part pushes the first impact end 151 to move towards one side of the second movable block.

In the fourth stamping stage, the inner side surface of the first insert rod 121 contacts with the outer side surface of the first movable block, the first insert rod 121 does not press the first movable block 113 any more, and since the first striking end 151 moves toward the second movable block 114, and the shaft diameter of the second striking end 152 of the penetrating pin 15 is larger than the hole diameter of the reference hole 21, the second striking end 152 can punch the automobile assembly flange 22 toward the second movable block on the basis of the reference hole of the automobile assembly 20.

In an embodiment, the lower die holder 111 is further provided with a first fixing block 115, and the first fixing block 115 is fixed on a side of the first movable block 113 away from the placement block 112. The advantage of this arrangement is that it is possible to provide the first plunger 121 with a supporting force towards the placement block 112 when the first plunger 121 is in contact with the first movable block 113, thus facilitating the movement of the first movable block 113 towards the placement block 112 on the one hand, and on the other hand, when it is possible to avoid that the first movable block 113 is subjected to a pressing force of the first plunger 121 due to a relatively large mass of the first movable block 113, the first movable block 113 provides a reverse acting force to the first plunger 121, resulting in damage of the first plunger 121. Further, a second fixing block 116 is further disposed on the lower die holder 111, and the second fixing block 116 is fixed on a side of the second movable block 114 away from the placement block 112. The advantage of this arrangement is that it provides a supporting force for the second plunger 122 towards the placement block 112 when the second plunger 122 is in contact with the second movable block 114, which facilitates the movement of the second movable block 114 towards the placement block 112 on the one hand, and provides a counter force for the second plunger 122 when the second movable block 114 is subjected to the pressing force of the second plunger 122 due to the relatively large mass of the second movable block 114 on the other hand, resulting in damage of the first plunger 121.

Further, the inclined surfaces of the first plunger 121 and the first movable block 113 are smooth and flat. The advantage of setting like this is that when first inserted link 121 and first movable block 113 contact, the inclined plane of first inserted link 121 and first movable block 113 can laminate to guarantee that the inclined plane of first inserted link 121 and first movable block 113 slides steadily, and then guarantee turn-ups terrace die 1131, turn-ups fashioned stability, in order to improve the product percent of pass. Accordingly, the inclined surfaces of the second plunger 122 and the inclined surface of the second movable block 114 are smooth and flat. The advantage of setting like this is that when second inserted bar 122 and second movable block 114 contact, the inclined plane of second inserted bar 122 and second movable block 114 can laminate to guarantee that the inclined plane of second inserted bar 122 and second movable block 114 slides steadily, and then guarantee the fashioned stability of turn-ups die 1141 turn-ups, in order to improve the product percent of pass.

In one embodiment, the lower die holder 111 is provided with a supporting step 117, and the supporting step 117 has a first end surface and a second end surface, wherein the first end surface is used for fixing the placement block 112, and the second end surface carries the first movable block 113. Here, the side of the support step 117 far from the lower die holder 111, which is far from the lower die holder 111, is referred to as a first end surface, and the side near to the lower die holder 111, which is near to the lower die holder 111, is referred to as a second end surface, so that the placement block 112 and the first movable block 113 can be placed together to improve the integrity of the cam stamping die 10 of the present utility model. Further, the first movable block 113 is provided with a first slider 1132 near the second end surface, and the surface of the second end surface is provided with a first slide plate 1174. That is, the first movable block 113 is movably connected with the lower die holder 111 through the sliding plate and the sliding block, so that the stability of the movement of the first movable block 113 can be improved, the stability of the flanging forming of the flanging male die 1131 can be improved, meanwhile, the situation that the mass of the first movable block 113 is large and the first inserting rod 121 cannot be extruded, so that the first movable block 113 moves towards the placing block 112 can be avoided. Further, the lower die holder 111 is further provided with a supporting table 118 for carrying the second movable block 114, a second sliding plate 1181 is laid on the surface of the supporting table 118, and a second sliding block 1144 is arranged on one surface of the second movable block 114 close to the surface of the supporting table 118. That is, the second movable block 114 is movably connected with the lower die holder 111 through the sliding plate and the sliding block, which has the advantages of improving the stability of the movement of the second movable block 114, further improving the stability of the flanging forming of the flanging die 1141, and simultaneously avoiding the larger mass of the second movable block 114, and the second insert rod 122 cannot be extruded, so that the second movable block 114 moves towards the placing block 112.

In one embodiment, the support table 118 is inclined away from the lower die base 111 toward the placement block 112. Specifically, in this embodiment, one side of the automobile assembly 20 is an inclined plane, the supporting table 118 is inclined towards the side of the placement block 112, so that the second movable block 114 can move obliquely towards the side of the placement block 112, and then the ejector rod 1142 is perpendicular to the inclined plane on one side of the automobile assembly 20, so that the flanging accuracy of the flanging female die 1141 is improved, and meanwhile, the supporting table 118 is inclined towards the side of the placement block 112, so that the second movable block 114 has a tendency to move towards the placement block 112, and thus, the situation that the second insert rod 122 needs a large extrusion force to enable the second movable block 114 to move towards the placement block 112 is avoided.

In one embodiment, the cam stamping die 10 includes a return spring 13, where the return spring 13 is configured to deform when the upper die holder 121 is away from the lower die holder 111 to drive the first movable block 113 and the second movable block 114 to return. The benefit of this arrangement is that the cam stamping die 10 can be ensured to be used multiple times to manufacture the automobile assembly 20, and at the same time, the spring cost is lower, so that the later use cost of the cam stamping die 10 can be reduced.

Further, the return spring 13 includes a first spring 131 and a second spring 132, the first spring 131 is disposed on a side of the first movable block 113 close to the placement block 112, and the second spring 132 is disposed on a side of the second movable block 114 close to the placement block 112. Specifically, the first spring 131 and the second spring 132 are compressed to accumulate elastic potential energy when the first insert rod 121 and the second insert rod 122 approach the lower die holder 111, and to release the elastic potential energy to drive the first movable block 113 and the second movable block 114 to return when the first insert rod 121 and the second insert rod 122 are away from the lower die holder 111. The advantage of this arrangement is that, under the premise of ensuring that the first movable block 113 and the second movable block can be reset, the first inserting rod 121 and the second inserting rod 122 can be kept away from each other, and interference to the first inserting rod 121 and the second inserting rod 122 is avoided.

Further, the support step 117 has a step connection surface 1173, and the first spring 131 is provided on the step connection surface 1173. Here, we refer to the connection surface of the first end surface and the second end surface of the supporting step 117 as a step connection surface 1173, in this embodiment, the step connection surface 1173 is parallel to the surface of the first movable block 113 near the placement block 112, so that the first spring 131 can be ensured to vertically contact with the first movable block 113, further, the supporting table 118 is lower than the supporting step 117, and the second slider 1144 is disposed near the supporting step 117. The advantage of this arrangement is that the second spring 132 can be brought into contact with the support step 117, thereby urging the second movable block 114 to return when the second plunger 122 is moved away from the lower die holder 111.

In one embodiment, the cam stamping die 10 is further provided with bullet-shaped positioning pins 14, the bullet-shaped positioning pins 14 being used to position the automobile assembly 20. Specifically, the head of the bullet-shaped positioning needle 14 is bullet-shaped, so that the bullet-shaped positioning needle 14 can pass through holes with different diameters, and when in actual use, the automobile assembly 20 can be positioned by only passing holes with any diameter through the bullet-shaped positioning needle 14 on two sides of the automobile assembly 20 to be turned. Further, bullet-shaped positioning pins 14 are provided on both sides of the extending direction of the through hole 1121 of the placement block 112. This has the advantage of avoiding the bullet-shaped pilot pin 14 interfering with the perforating operation of the automobile fitting 20.

In an embodiment, the pin 15 is provided with a through travel groove 153 along a length direction, the placement block 112 is provided with a through limit groove 1122, the length of the limit groove 1122 is shorter than that of the travel groove 153, the cam stamping die 10 further includes a stop pin 16, one end of the stop pin 16 is disposed in the travel groove 153, and the other end of the stop pin extends out through the limit groove 1122. It will be readily appreciated that the stop pin 16 is capable of limiting the through pin 15 to prevent the through pin 15 from falling out of the through hole 1121.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. Wedge stamping die, its characterized in that includes:

the lower die comprises a lower die base, a placing block, a first movable block and a second movable block, wherein the placing block is arranged on the lower die base, a through hole penetrating through the placing block is concavely formed in the placing block, the placing block is used for placing an automobile assembly part, the first movable block and the second movable block are respectively arranged on two opposite sides of the placing block, the first movable block and the second movable block are movably connected with the lower die base, one surface of the first movable block and the second movable block, which is far away from the placing block, is provided with an inclined surface, one surface of the first movable block and one surface of the second movable block is provided with a flanging die, the other surface of the flanging die is provided with a push rod, and the rod diameter of the push rod is smaller than the aperture of a reference hole;

the upper die comprises a first inserting rod, a second inserting rod and an upper die holder, wherein the first inserting rod and the second inserting rod are oppositely arranged at two sides of the upper die holder at intervals, inclined planes matched with the first movable block and the second movable block are respectively arranged on the first inserting rod and the second inserting rod, when the upper die holder is close to the lower die holder, the inclined planes of the first inserting rod and the second inserting rod can be contacted with the inclined planes of the first movable block and the second movable block, and the length of one of the first inserting rod and the second inserting rod is longer than that of the other one;

the pin penetrating device comprises a pin penetrating device, wherein the pin penetrating device is provided with a first hitting end and a second hitting end which are oppositely arranged, the shaft diameter of the first hitting end is smaller than the hole diameter of the reference hole, and the shaft diameter of the second hitting end is larger than the hole diameter of the reference hole.

2. The cam stamping die of claim 1, wherein a first fixed block and a second fixed block are arranged on the lower die holder, the first fixed block is fixed on one side of the first movable block away from the placing block, and the second fixed block is fixed on one side of the second movable block away from the placing block.

3. The cam stamping die of claim 1, wherein the inclined surfaces of the first insert rod and the first movable block are smooth and flat;

the inclined surfaces of the second inserted link and the second movable block are smooth and flat.

4. The wedge stamping die of claim 1, wherein the lower die holder is provided with a supporting step, the supporting step is provided with an upper end face and a lower end face, the upper end face is used for fixing the placing block, the lower end face carries the first movable block, a first sliding block is arranged on one face, close to the lower end face, of the first movable block, and a first sliding plate is paved on the surface of the lower end face;

the lower die holder is also provided with a supporting table for bearing the second movable block, a second sliding plate is laid on the surface of the supporting table, and a second sliding block is arranged on one surface, close to the supporting table, of the second movable block.

5. The cam stamping die of claim 4, wherein the support table is inclined toward the placement block away from the lower die base.

6. The cam stamping die of claim 4, further comprising a return spring for deforming the upper die base away from the lower die base to urge the first movable block and the second movable block to return.

7. The cam stamping die of claim 6, wherein the return spring comprises a first spring and a second spring, the first spring being disposed on a side of the first movable block adjacent to the placement block, the second spring being disposed on a side of the second movable block adjacent to the placement block.

8. The cam stamping die of claim 7, wherein the support step has a step connection surface, the first spring being disposed on the step connection surface;

the height of the supporting table is lower than that of the supporting step, and the second spring is arranged on one side of the second sliding block, which is close to the supporting table.

9. A cam stamping die as claimed in any one of claims 1 to 8, further comprising bullet-shaped positioning pins, the bullet-shaped positioning pin head being bullet-shaped, the bullet-shaped positioning pins being provided on both sides of the direction in which the through holes extend.

10. The cam stamping die of claim 9, wherein the pin is provided with a travel slot along a length direction, the placement block is provided with a limit slot, and the length of the limit slot is shorter than that of the travel slot;

the wedge stamping die further comprises a stop pin, one end of the stop pin is arranged in the travel groove, and the other end of the stop pin extends out of the limit groove.