Punching device for end head of workpiece

Abstract

The utility model belongs to the field of punching, and provides a punching device for the end head of a workpiece, which comprises a fixed die plate, a first groove, a second die plate, a first pressing plate, a second pressing plate, a third pressing plate and a third pressing plate, and is characterized in that the fixed die plate is provided with a fixing part and a pressing part; the fixing part can extend into the first groove to limit the displacement of the workpiece along the horizontal direction; the pressing piece is detachably connected to the fixing piece and movably inserted into the second groove so as to limit the workpiece to be separated from the fixing piece. The first sliding block and the second sliding block are symmetrically arranged on the fixed mold plate and move on the two sides of the fixing piece, a first insert is arranged on the first sliding block, and a second insert is arranged on the second sliding block. Compared with the prior art, the utility model has the advantages that the insert is matched with the workpiece to be punched, and the two-way clamping of the insert is utilized, so that the problem of deformation of the workpiece during punching is effectively solved, the phenomenon that burrs are turned outwards in the punching process is avoided, the punching quality and the production efficiency are improved, and the production cost is reduced. While the product percent of pass and the product stability are ensured, the subsequent treatment procedures are reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of punching, and particularly relates to a punching device for the end of a workpiece. Background Art

[0002] In the automotive manufacturing industry, laser cutting or sawing processes are commonly used for the end processing of the middle guide rail of the rear door. Although these methods can achieve relatively precise cutting, there are still the following problems:

[0003] 1. The cost of laser cutting is relatively high, and the passing rate of the salt spray test of the product after thermal processing is low;

[0004] 2. The products after sawing often have serious burrs, which need additional processes to remove, increasing the production cost and time.

[0005] It can be seen that the existing punching processes cannot effectively solve the problems of deformation and burr turning outwards during product punching, which not only affects the overall production efficiency, but also reduces the qualified rate of products and the stability during the production process. Content of the Utility Model

[0006] Aiming at the above deficiencies existing in the prior art, the technical problem to be solved by the utility model is to provide a punching device for the end of a workpiece.

[0007] The utility model adopts the following technical solution to solve its technical problem: a punching device for the end of a workpiece is provided. Deformation parts are symmetrically formed on both sides in the length direction of the workpiece, and a first groove and a second groove which are not communicated with each other are formed between two adjacent deformation parts. The punching device includes: a fixed template, on which a fixing member and a pressing member are arranged. The fixing member can extend into the first groove to limit the horizontal displacement of the workpiece; the pressing member is detachably connected to the fixing member and is movably inserted into the second groove to limit the workpiece from separating from the fixing member;

[0008] A first slider and a second slider are symmetrically arranged on the fixed template and are movable on both sides of the fixing member. A first insert block is arranged on the first slider, and a second insert block is arranged on the second slider. When the first slider and the second slider move towards each other and approach, the first insert block and the second insert block can movably extend into the fixing member and tightly abut and be clamped on the deformation part;

[0009] A moving die mechanism is movably arranged above the fixed template. A cutting knife and pushing blocks symmetrically arranged on both sides of the cutting knife are connected to the moving die mechanism. The pushing blocks are used to push the first slider and the second slider to move towards each other; the cutting knife is movably attached to the side walls of the fixing member, the first insert block and the second insert block to cut off the end of the workpiece;

[0010] When the moving die mechanism approaches the fixed template in an opposite direction, the first insert block and the second insert block can be pushed by the push block to move and tightly abut and engage with the deformation part, so that the cutting knife can closely adhere to the side walls of the fixed part and the insert block, and complete the punching of the end of the workpiece.

[0011] In the above punching device for the end of a workpiece, both the first insert block and the second insert block include a connecting part and a supporting part. A connecting hole is provided on the connecting part for a connecting piece to pass through the connecting hole and be connected to the first slider or the second slider; a profiling groove is formed at the end of the supporting part, and the profiling groove movably abuts and engages with the deformation part.

[0012] In the above punching device for the end of a workpiece, guiding inclined surfaces are formed at the ends of both the first slider and the second slider. The push block is arranged in an L shape and movably abuts against the guiding inclined surfaces to guide the sliders to drive the first insert block and the second insert block to movably abut and engage with the deformation part.

[0013] In the above punching device for the end of a workpiece, the fixed part includes:

[0014] A fixed seat, which is detachably connected to the fixed template. A profiling block is provided on the fixed seat, and the profiling block can extend into the first groove to limit the horizontal displacement of the workpiece.

[0015] An extension plate, which is arranged on the fixed template and on one side of the fixed seat. A limiting block is provided on the extension plate, and the workpiece to be punched can be placed on the extension plate, and the end of the workpiece far from the punching abuts against the limiting block movably.

[0016] In the above punching device for the end of a workpiece, the pressing part includes:

[0017] A fixed module, which is detachably connected to the fixed seat;

[0018] A pressure block, which is arranged in a T shape. A T-shaped groove is formed in the fixed module, and the pressure block is installed in the T-shaped groove and movably presses in the second groove.

[0019] In the above punching device for the end of a workpiece, a retaining block is further provided on the fixed template. An elastic member is connected between the first slider or the second slider and the fixed seat. When the push block moves away from the fixed template, the first slider and the second slider can move away from each other in an opposite direction by relying on the elastic reset of the elastic member, and the moving distance of the first slider and the second slider during reset is limited by the retaining block.

[0020] In the above-mentioned punching device for the end of a workpiece, a relief groove is further formed on the fixed module, and the relief groove allows the first insert block and the second insert block to pass through and be movably clamped on the deformation part.

[0021] In the above-mentioned punching device for the end of a workpiece, a guiding block is detachably installed on the fixed template. One end of the guiding block faces the fixed seat, and the other end faces the anti-retreat block. Guide grooves are formed at the bottoms of the first slider and the second slider, and the guide grooves are movably clamped on the guiding block.

[0022] In the above-mentioned punching device for the end of a workpiece, supporting blocks are symmetrically arranged on both sides of the guiding block on the fixed template. The supporting blocks are arranged parallel to the guiding block, and engaging blocks are formed on the supporting blocks. Engaging grooves are arranged on both sides of the first slider and the second slider, and the engaging grooves are movably clamped with the engaging blocks.

[0023] In the above-mentioned punching device for the end of a workpiece, the moving die mechanism further includes a moving template. The pushing block and the cutting tool are both installed on the moving template, and a first guiding seat is arranged on the moving template. A second guiding seat is arranged on the fixed template. A guiding hole is formed in the first guiding seat, and a guiding column is arranged on the second guiding seat. The guiding column is movably inserted into the guiding hole.

[0024] Compared with the prior art, the present utility model has the following beneficial effects:

[0025] (1) The punching device for the end of a workpiece of the present utility model matches the insert blocks with the workpiece to be punched, solves the problem of workpiece deformation during punching, and at the same time uses the bidirectional clamping of the insert blocks to effectively avoid the phenomenon of burr turning outwards during the punching process, greatly improving the punching quality and production efficiency. While ensuring the product qualification rate and product stability, it also reduces the subsequent processing procedures and lowers the production cost.

[0026] (2) The elastic reset of the elastic member can effectively achieve the automatic reset after the workpiece punching process on the one hand, and on the other hand, it can cooperate with the anti-retreat block to limit the displacement of the slider on the fixed template, ensuring the smoothness and stability when the pushing block pushes the first slider and the second slider to approach each other again subsequently. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram when the moving die mechanism and the fixed template of the present application are closed;

[0028] Figure 2 is a schematic installation structural diagram of the moving die mechanism;

[0029] Figure 3It is a view of the installation structure of the slider, insert block, fixing part and pressing part on the fixed template;

[0030] Figure 4 It is an exploded view between the fixing part and the pressing part;

[0031] Figure 5 It is Figure 3 the rear view of.

[0032] In the figure, 1 is the workpiece; 10 is the deformation part; 11 is the first groove; 12 is the second groove;

[0033] 2 is the fixed template; 20 is the anti-back block; 21 is the guiding block; 22 is the supporting block; 220 is the engaging block; 23 is the second guiding seat; 230 is the guiding column; 24 is the blanking plate;

[0034] 3 is the fixing part; 30 is the fixing seat; 300 is the profiling block; 31 is the extension plate; 310 is the limiting block; 310a is the kidney-shaped hole; 311 is the limiting hole;

[0035] 4 is the pressing part; 40 is the fixing module; 400 is the T-shaped groove; 401 is the relief groove; 41 is the pressure block;

[0036] 50 is the first slider; 500 is the first insert block; 51 is the second slider; 510 is the second insert block; 520 is the connecting part; 520a is the connecting hole; 521 is the supporting part; 521a is the profiling groove; 53 is the guiding inclined plane; 54 is the guiding groove; 55 is the engaging groove;

[0037] 6 is the moving die mechanism; 60 is the cutting tool; 61 is the pushing block; 62 is the moving template; 63 is the first guiding seat; 630 is the guiding hole. Specific embodiments

[0038] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0039] Such as Figures 1 to 5As shown in the figure, the utility model relates to a punching device for the end of a workpiece 1. Symmetrically arranged deformation parts 10 are formed on both sides of the workpiece 1 in the length direction. A first groove 11 and a second groove 12 which are not connected to each other are formed between two adjacent deformation parts 10. The punching device includes: a fixed template 2, on which a fixing part 3 and a pressing part 4 are arranged. The fixing part 3 can extend into the first groove 11 to limit the displacement of the workpiece 1 in the horizontal direction; the pressing part 4 is detachably connected to the fixing part 3 and is movably inserted into the second groove 12 to limit the workpiece 1 from separating from the fixing part 3; a first slider 50 and a second slider 51 are symmetrically arranged on the fixed template 2 and are movable on both sides of the fixing part 3. A first insert block 500 is arranged on the first slider 50, and a second insert block 510 is arranged on the second slider 51. The first insert block 500 and the second insert block 510 can movably extend into the fixing part 3 and tightly abut and clamp on the deformation part 10 when the first slider 50 and the second slider 51 approach each other; a moving die mechanism 6 is movably arranged above the fixed template 2. A cutting knife 60 and pushing blocks 61 symmetrically arranged on both sides of the cutting knife 60 are connected to the moving die mechanism 6. The pushing blocks 61 are used to push the first slider 50 and the second slider 51 to approach each other; the cutting knife 60 is movably attached to the side walls of the fixing part 3, the first insert block 500 and the second insert block 510 to cut off the end of the workpiece 1; when the moving die mechanism 6 approaches the fixed template 2, the first insert block 500 and the second insert block 510 can be pushed by the pushing blocks 61 to movably abut and clamp on the deformation part 10, so that the cutting knife 60 can closely adhere to the side walls of the fixing part 3 and the insert blocks, and complete the punching of the end of the workpiece 1.

[0040] This solution is mainly to realize the punching process of the end of the workpiece 1. Specifically, as Figures 1 to 5 shown, when the workpiece 1 to be punched is placed on the fixing part 3, the fixing part 3 extends into the first groove 11, and the pressing part 4 is detachably connected to the fixing part 3 and the pressing part 4 is movably inserted into the second groove 12 of the workpiece 1, the positioning placement of the workpiece 1 to be punched is realized. At this time, the moving die mechanism 6 can drive the pushing blocks 61 and the cutting knife 60 to approach the fixed template 2 synchronously. During this process, the pushing blocks 61 can pre-movably abut against and push the first slider 50 and the second slider 51 to approach each other. Since the first insert block 500 and the second insert block 510 are respectively installed on the first slider 50 and the second slider 51, with the approaching of the two sliders, the first insert block 500 and the second insert block 510 can movably abut and clamp on the deformation parts 10 on both sides of the workpiece 1, as Figure 5In the shown state, the insert block can provide good support and protection for the workpiece 1 to be punched. As the moving die mechanism 6 continues to approach and press against the fixed template 2, the cutter 60 can complete the cutting of the end of the workpiece 1 along the position close to the fixed part 3 and the side wall of the insert block. Thus, it can be seen that in this solution, by matching the insert block with the workpiece 1 to be punched, the problem of workpiece 1 deformation during punching is solved. At the same time, the two-way clamping of the deformation part 10 by the first insert block 500 and the second insert block 510 effectively avoids the phenomenon of burr turning outwards during the punching process, greatly improves the punching quality and production efficiency, ensures the product qualification rate and product stability, reduces the subsequent processing procedures, and lowers the production cost.

[0041] Both the first insert block 500 and the second insert block 510 include a connecting part 520 and a supporting part 521. A connecting hole 520a is provided on the connecting part 520 for a connecting piece to pass through the connecting hole 520a and be connected to the first slider 50 or the second slider 51; a profiling groove 521a is formed at the end of the supporting part 521, and the profiling groove 521a is movably pressed against and clamped on the deformation part 10.

[0042] As Figure 5 shown, each insert block is composed of two parts, namely a connecting part 520 and a supporting part 521. Among them, when the connecting hole 520a on the connecting part 520 is aligned with the first slider 50 or the second slider 51, the connecting piece can pass through the connecting hole 520a and be connected to the slider. It should be noted that the connecting piece in this solution can be replaced by other connecting devices such as screws, realizing a convenient installation method between the insert block and the slider, providing convenience for subsequent maintenance and replacement, and also enabling the insert block to be replaced in time when damaged to ensure the stable support and protection effect on the deformation part 10 of the workpiece 1; the supporting part 521 is connected to the connecting part 520. Through the profiling groove 521a formed at the end of the supporting part 521, when the push block 61 applies the thrust when the first slider 50 and the second slider 51 approach each other, it can be stably pressed against and clamped on the deformation part 10 to solve problems such as deformation of the deformation part 10 and burr turning outwards at the end of the workpiece 1 during the cutting process, and greatly ensure that the quality of the workpiece 1 after punching and forming can meet the usage requirements of customers.

[0043] Guide slopes 53 are formed at the ends of the first slider 50 and the second slider 51. The push block 61 is arranged in an L shape and is movably pressed against the guide slopes 53 to guide the sliders to drive the first insert block 500 and the second insert block 510 to movably press against and clamp on the deformation part 10.

[0044] As Figures 1 to 4As shown, in this solution, the pushing block 61 is arranged in an L shape, which provides convenience for the installation and disassembly of the pushing block 61. Furthermore, as the moving die mechanism 6 gradually approaches the fixed template 2, the pushing block 61 can stably press against the guiding inclined surface 53 to apply a driving force for the first slider 50 and the second slider 51 to approach each other. The guiding inclined surface 53 effectively prevents jamming between the pushing block 61 and the slider, ensuring the stability when the pushing block 61 drives the slider and the insert block to apply pressure and support force to the product.

[0045] The fixing member 3 includes: a fixing base 30 detachably connected to the fixed template 2. A profiling block 300 is provided on the fixing base 30, and the profiling block 300 can extend into the first groove 11 to limit the horizontal displacement of the workpiece 1; an extension plate 31 is provided on the fixed template 2 and on one side of the fixing base 30. A limiting block 310 is provided on the extension plate 31, and the workpiece 1 to be punched can be placed on the extension plate 31, and the end of the workpiece 1 away from the punching is movably pressed against the limiting block 310.

[0046] Regarding the placement of the workpiece 1, in this solution, a fixing base 30 is provided on the fixed template 2, as Figure 3 shown. By using the profiling block 300 provided on the fixing base 30, the first groove 11 can be clamped on the profiling block 300 during the placement of the workpiece 1, thereby ensuring that the workpiece 1 will not Figure 3 generate displacement in the horizontal direction. Since the workpiece 1 in this solution is arranged in a long strip shape, an extension plate 31 is connected to the outside of the fixed template 2. The limiting block 310 on the extension plate 31 can effectively press against the end of the workpiece 1 (i.e., the non-punched end), thereby restricting the placement position of the workpiece 1 on the fixed template 2 and ensuring that the cutter 60 stably punches the specified position of the workpiece 1.

[0047] Preferably, in this solution, a kidney-shaped hole 310a can also be provided on the limiting block 310, and a plurality of limiting holes 311 are provided on the extension plate 31. For workpieces 1 of different lengths, by adjusting the position of the limiting block 310 on the extension plate 31, components such as screws are also used to pass through the kidney-shaped hole 310a and connect to the limiting holes 311 at different positions to ensure the stability when the limiting block 310 presses against the workpiece 1.

[0048] The pressing member 4 includes: a fixing module 40 detachably connected to the fixing base 30; a pressing block 41 arranged in a T shape. A T-shaped groove 400 is formed in the fixing module 40, and the pressing block 41 is installed in the T-shaped groove 400 and movably presses against the second groove 12.

[0049] Continue to refer to Figure 3, in this solution, the pressing member 4 consists of two parts: a fixed module 40 and a pressure pad 41. Among them, after the first groove 11 on the workpiece 1 is fixed by the profiling block 300, the fixed module 40 can be detachably installed on the fixed seat 30 under the action of screws. At this time, the pressure pad 41 connected in the T-shaped groove 400 can be stably pressed into the second groove 12 on the workpiece 1 to prevent the workpiece 1 from shaking and displacing during the punching process. It should be noted that the pressure pad 41 is also arranged in a T-shape. When the pressure pad 41 is movably installed in the T-shaped groove 400, the fixation of the pressure pad can also be completed under the connection of screws or bolts, effectively ensuring the stability of the pressure pad 41 when pressing the workpiece 1.

[0050] Preferably, as Figure 5 shown, this solution also offers a relief groove 401 on the fixed module 40. The relief groove 401 allows the first insert 500 and the second insert 510 to pass through and be movably clamped on the deformation part 10. The relief groove 401 can provide guiding and limiting effects during the process of the insert tightly clamping the deformation part 10, ensuring that the insert can accurately and stably press against the deformation part 10, and improving the fluency and stability of the structure during operation.

[0051] The fixed template 2 is also provided with a retaining block 20. An elastic member is connected between the first slider 50 or the second slider 51 and the fixed seat 30. When the push block 61 moves away from the fixed template 2, the first slider 50 and the second slider 51 can move away from each other relying on the elastic reset of the elastic member, and the retaining block 20 restricts the moving distance of the first slider 50 and the second slider 51 during reset.

[0052] As Figure 1 shown in Figure 4 When the push block 61 drives the first slider 50 and the second slider 51 to approach each other, the elastic member (not shown in the figure) between the slider and the fixed seat 30 is compressed at this time, and finally the push block 61 is also located between the fixed seat 30 and the first slider 50 or the second slider 51. Refer to the state shown in Figure 1 This effectively avoids the bending deformation of the deformation part 10 of the workpiece 1 during punching. When the moving die mechanism 6 drives the push block 61 to move away from the fixed template 2, since there is no extrusion force of the push block 61 on the slider, the first slider 50 and the second slider 51 can move away from the fixed seat 30 relying on the elastic reset of the elastic member to ensure that the workpiece 1 after punching and forming will not be damaged during the removal process. It should be noted that at this time, the retaining block 20 can limit the moving distance of the first slider 50 or the second slider 51 on the fixed die seat, ensuring the fluency and stability when the push block 61 pushes the first slider 50 and the second slider 51 to approach each other again.

[0053] A guiding block 21 is detachably installed on the fixed template 2. One end of the guiding block 21 faces the fixed seat 30, and the other end faces the anti-reverse block 20. Guide grooves 54 are formed at the bottoms of the first slider 50 and the second slider 51, and the guide grooves 54 are movably clamped on the guiding block 21.

[0054] As Figure 3 shown in Figure 5 the figure, the length direction of the guiding block 21 is the direction in which the first slider 50 and the second slider 51 drive the insert block to tightly press against the deformation part 10. Therefore, relying on the cooperation of the movable clamping of the guide groove 54 and the guiding block 21 helps to guide and limit the first slider 50 or the second slider 51 when making relative movement on the fixed template 2. Similarly, on the two side walls of the first slider 50 and the second slider 51, the cooperation method of the movable clamping of the guiding block 21 and the guide groove 54 can also be used to further ensure that the forming slider will not tilt during the reciprocating movement.

[0055] Support blocks 22 are symmetrically arranged on both sides of the guiding block 21 on the fixed template 2. The support blocks 22 are arranged parallel to the guiding block 21, and engaging blocks 220 are formed on the support blocks 22. Engaging grooves 55 are arranged on both sides of the first slider 50 and the second slider 51, and the engaging grooves 55 are movably clamped with the engaging blocks 220.

[0056] Furthermore, on the basis of the above, in this solution, support blocks 22 are symmetrically arranged on both sides of the guiding block 21. The support blocks 22 can provide a good support effect when the first slider 50 or the second slider 51 moves. As Figure 3 shown in Figure 5 the figure, by using the cooperation method of the movable clamping of the engaging blocks 220 on the support blocks 22 and the engaging grooves 55 formed on both sides of the slider, the smoothness and stability of the first slider 50 and the second slider 51 moving towards or away from each other are further ensured, and the tilting of the slider during the movement is avoided, which affects the stable clamping and support of the insert block to the deformation part 10.

[0057] The moving die mechanism 6 further includes a moving template 62. The pushing block 61 and the cutting knife 60 are both installed on the moving template 62, and a first guiding seat 63 is arranged on the moving template 62. A second guiding seat 23 is arranged on the fixed template 2. A guiding hole 630 is formed in the first guiding seat 63, and a guiding post 230 is arranged on the second guiding seat 23. The guiding post 230 is movably inserted into the guiding hole 630.

[0058] Refer to Figures 1 to 3, when the moving template 62 approaches the fixed template 2, the guiding columns 230 can be movably inserted into the guiding holes 630, so as to play a guiding and limiting effect when the moving template 62 and the fixed template 2 are clamped, ensuring that the above-mentioned pushing block 61 and the cutting knife 60 can both stably realize their corresponding functions. In addition to improving the stability during product punching, it also guarantees the quality of the workpiece 1 after punching and forming.

[0059] Preferably, the buffer spring can also be installed on the fixed template 2, so that the moving template 62 and the fixed template 2 can play a certain buffering and shock-absorbing effect through the buffer spring during the clamping action.

[0060] Preferably, in this solution, a blanking plate 24 can also be inclinedly arranged on the fixed template 2. After the cutting knife 60 performs a punching process along the side walls of the fixed seat 30 and the two inserts, the cut-off material head can be smoothly discharged outside the punching device by using the blanking plate 24, so as to avoid the damage of components caused by the collision between the material head and the punching device.

[0061] It should be noted that the elastic member in this solution can be replaced by other elastic devices such as a compression spring and a return spring. In addition, the shape of the cutting knife 60 in this solution is a standard design and is the same as the structure of the cutting knife 60 in the prior art, so it will not be elaborated here in detail.

[0062] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0063] In addition, in the present invention, descriptions such as "first", "second", and "one" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] In the present invention, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. A punching device for a workpiece end, wherein two sides of the workpiece in the length direction are formed with symmetrically arranged deformation parts, and a first groove and a second groove that are not connected to each other are formed between two adjacent deformation parts, characterized in that: The punching device comprises: A fixed template is provided with a fixing member and a pressing member, wherein the fixing member can extend into the first groove to limit the displacement of the workpiece in the horizontal direction; the pressing member is detachably connected to the fixing member and movably inserted into the second groove to limit the workpiece from being separated from the fixing member; A first slider and a second slider are symmetrically arranged on the fixed template and move on both sides of the fixing member, the first slider is provided with a first insert, and the second slider is provided with a second insert, and the first insert and the second insert can move into the fixing member and be tightly clamped on the deformation portion when the first slider and the second slider are close to each other; A movable mold mechanism is movably arranged above the fixed mold plate, the movable mold mechanism is connected with a cutter and push blocks symmetrically arranged on both sides of the cutter, the push blocks are used to push the first slider and the second slider towards each other; the cutter is movably attached to the side walls of the fixing member, the first insert and the second insert to cut off the end of the workpiece; When the movable mold mechanism and the fixed mold plate approach each other, the first insert and the second insert can be moved and tightly clamped on the deformation part due to the push of the push block, so that the cutter can be tightly attached to the side walls of the fixing part and the insert and complete the punching of the workpiece end.

2. A punching device for a workpiece end according to claim 1, characterized in that: The first insert and the second insert both include a connecting portion and a supporting portion, the connecting portion is provided with a connecting hole for a connecting member to pass through the connecting hole and be connected to the first slider or the second slider; the end of the supporting portion is formed with a contoured groove, the contoured groove is movably pressed against and clamped on the deformation portion.

3. A punching device for a workpiece end according to claim 1, characterized in that: The ends of the first slider and the second slider are both formed with guiding slopes, and the push block is arranged in an L shape and movably presses against the guiding slopes to guide the slider to drive the first insert and the second insert to movably press against and clamp on the deformation part.

4. A punching device for a workpiece end according to claim 2, characterized in that: The fixing member comprises: A fixing seat, detachably connected to the fixed template, the fixing seat is provided with a profiling block, the profiling block can extend into the first groove to limit the horizontal displacement of the workpiece; An extension plate is arranged on the fixed template and located on one side of the fixed seat. A limit block is arranged on the extension plate. The workpiece to be punched can be placed on the extension plate, and the end of the workpiece away from the punching can be movably pressed against the limit block.

5. A punching device for a workpiece end according to claim 4, characterized in that: The pressing member comprises: A fixing module, detachably connected to the fixing seat; The pressing block is T-shaped, a T-slot is formed in the fixing module, the pressing block is installed in the T-slot and is movably pressed in the second groove.

6. A punching device for a workpiece end according to claim 4, characterized in that: The fixed template is also provided with a stop block, and an elastic member is connected between the first slider or the second slider and the fixed seat. When the push block moves away from the fixed template, the first slider and the second slider can move away from each other due to the elastic reset of the elastic member, and the stop block limits the moving distance of the first slider and the second slider when they are reset.

7. A punching device for a workpiece end according to claim 5, characterized in that: The fixing module is also provided with a clearance groove, through which the first insert and the second insert can pass and be movably connected to the deformation part.

8. A punching device for a workpiece end according to claim 6, characterized in that: A guide block is detachably mounted on the fixed template, one end of the guide block faces the fixed seat, and the other end faces the stop block. Guide grooves are formed at the bottoms of the first slider and the second slider, and the guide grooves are movably connected to the guide block.

9. A punching device for a workpiece end according to claim 8, characterized in that: The fixed template is also provided with support blocks symmetrically arranged on both sides of the guide block, the support blocks are arranged parallel to the guide blocks, and a snap-fit ​​block is formed on the support blocks, and snap-fit ​​grooves are arranged on both sides of the first slider and the second slider, and the snap-fit ​​grooves are movably snap-fitted with the snap-fit ​​blocks.

10. A punching device for a workpiece end according to claim 1, characterized in that: The movable mold mechanism also includes a movable mold plate, the push block and the cutter are both installed on the movable mold plate, and a first guide seat is arranged on the movable mold plate, and a second guide seat is arranged on the fixed mold plate, a guide hole is formed in the first guide seat, and a guide column is arranged on the second guide seat, and the guide column is movably inserted in the guide hole.

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