In-mold contact riveting equipment

Abstract

The utility model discloses in-mold contact riveting equipment which comprises a substrate, an extending part is integrally arranged on the surface of one side of the substrate, and a first mounting hole and a second mounting hole are formed in the upper surface of the substrate and the upper surface of the extending part in a penetrating mode respectively. A first mounting hole and a second mounting hole are formed in the base plate, a trigger rod mechanism and a stamping rod mechanism are slidably mounted in the first mounting hole and the second mounting hole respectively, a multi-stage linkage mechanism is fixedly connected to the lower portion of the base plate through a connecting rod, the trigger rod mechanism comprises a second-stage trigger sleeve and a first-stage trigger sliding rod, and the stamping rod mechanism comprises a first-stage stamping sleeve and a second-stage stamping sliding rod; the second-stage trigger sleeve and the second-stage stamping sliding rod are movably connected through a multi-stage linkage mechanism, the first-stage trigger sliding rod and the first-stage stamping sleeve are movably connected through a multi-stage linkage mechanism, and the situation that stability and accuracy are affected is avoided by integrally installing the base plate on the lower die. And the trigger rod mechanism and the stamping rod mechanism are matched with the multi-stage linkage mechanism, so that coherent actions of first-stage prepressing and second-stage stamping are realized, and the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy automobile production field, specifically, relate to a kind of in-mold contact riveting equipment. BACKGROUND

[0002] In the field of multi-station progressive die of new energy automobile production, most contact riveting devices are arranged in the upper die. Since the upper die needs to be reciprocally displaced up and down relative to the lower die frequently, the riveting device will move accordingly in this process, resulting in its stability being affected, and thus the accuracy of riveting is reduced. Moreover, most riveting devices can only perform single stamping in a single contact riveting action, and cannot finely control the riveting process, making it difficult to ensure the firmness and consistency of riveting, and the product quality is uneven. These problems not only increase the rate of defective products in the production process, increase production costs, but also may affect the performance and safety of related components of new energy vehicles.

[0003] How to invent an in-mold contact riveting device to improve these problems has become a problem to be solved by technicians in the field. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides an in-mold contact riveting device, aiming to improve the problem that most riveting devices in the existing production process of new energy vehicles are arranged in the upper die, which may reduce the stability of the upper die and thus affect the accuracy of riveting, and most riveting devices can only perform single stamping in a single riveting action, making it difficult to ensure the firmness and consistency of riveting.

[0005] The utility model is implemented as follows: an in-mold contact riveting device, comprising a base plate, an extension is integrally arranged on one side surface of the base plate, first and second mounting holes are respectively formed through the upper surfaces of the base plate and the extension, a trigger lever mechanism and a stamping lever mechanism are respectively slidably installed in the first and second mounting holes, a multi-stage linkage mechanism is fixedly connected to the lower part of the base plate through a connecting rod, the trigger lever mechanism comprises a two-stage trigger sleeve and a one-stage trigger slide rod, the stamping lever mechanism comprises a one-stage stamping sleeve and a two-stage stamping slide rod, the two-stage trigger sleeve and the two-stage stamping slide rod, and the one-stage trigger slide rod and the one-stage stamping sleeve are all movably connected through the multi-stage linkage mechanism, a feeding channel is fixedly connected to one side of the upper surface of the base plate, a positioning groove is arranged at one end of the feeding channel, and the positioning groove is coaxially arranged at the top end of the first mounting hole and communicates with the first mounting hole.

[0006] In a preferred technical scheme of the utility model, the second level trigger sleeve pipe is slidably installed in the second installation hole, the first level trigger slide rod is slidably connected in the second level trigger sleeve pipe, the first level trigger slide rod top end is integrally provided with a pressure abutting part, the pressure abutting part bottom surface is fixedly connected with one end of the first reset spring, the other end of the first reset spring is fixedly connected on the extension part upper surface, the second level trigger sleeve pipe bottom end outer wall is integrally provided with a ring-shaped connecting plate, the ring-shaped connecting plate upper surface is fixedly connected with one end of the second reset spring, the other end of the second reset spring is fixedly connected on the extension part bottom surface.

[0007] In a preferred technical scheme of the utility model, the first level stamping sleeve pipe is slidably installed in the first installation hole, the second level stamping slide rod is slidably installed in the first level stamping sleeve pipe, the second level stamping slide rod top end is integrally provided with a ring-shaped boss, the first level stamping sleeve pipe top end peripheral wall is provided with a ring-shaped clamping groove corresponding to the ring-shaped boss, and the first level stamping sleeve pipe outer diameter is consistent with the positioning groove inner diameter.

[0008] In a preferred technical scheme of the utility model, the multi-stage linkage mechanism comprises a mounting plate, the mounting plate is fixedly connected with the base plate through a plurality of connecting rods, the mounting plate upper surface is fixedly provided with a first slide rail and a second slide rail arranged in parallel, a first sliding block and a second sliding block are slidably installed on the first slide rail and the second slide rail respectively, one end of the first sliding block is rotatably connected with one end of a first connecting rod, the other end of the first connecting rod is rotatably connected with the first level stamping sleeve pipe bottom end outer wall, the other end of the first sliding block is rotatably connected with one end of a second connecting rod, the other end of the second connecting rod is rotatably connected with the first level trigger slide rod bottom end, one end of the second sliding block is rotatably connected with one end of a third connecting rod, the other end of the third connecting rod is rotatably connected with the second level stamping slide rod bottom end, an extension support rod is integrally arranged on one side outer wall of the ring-shaped connecting plate, one end of a telescopic connecting rod is rotatably connected with the extension support rod bottom end, and the other end of the telescopic connecting rod is rotatably connected with one end of the second sliding block.

[0009] In a preferred technical scheme of the utility model, the first installation hole, the first level stamping sleeve pipe and the second level stamping slide rod are provided with anti-rotation limiting structures.

[0010] In a preferred technical scheme of the utility model, the base plate both sides surfaces are integrally provided with a plurality of connecting parts.

[0011] In a preferred technical scheme of the utility model, the pressure abutting part top surface is provided with an antiskid protective rubber pad.

[0012] The utility model discloses an in-mold contact riveting equipment, when using, the whole base plate is installed on the lower mould, avoids the riveting device and influences stability and accuracy because of following the upper mould displacement, trigger lever mechanism, punch rod mechanism and multistage linkage mechanism cooperate with each other, realize the coherent action of one -level pre -pressing and two -level stamping, compared with traditional single -time stamping, riveting is more firm and reliable, improves production efficiency and product quality, reduces production cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the drawing needed in the embodiment used briefly introduce, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be seen as the limitation to the range, for ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other related drawings according to these drawings.

[0014] Figure 1 It is the whole structure schematic perspective drawing provided by the embodiment of the utility model;

[0015] Figure 2 It is the whole sectional structure schematic perspective drawing provided by the embodiment of the utility model;

[0016] Figure 3 It is the whole sectional structure schematic perspective drawing of another side provided by the embodiment of the utility model;

[0017] Figure 4 It is the punch rod mechanism whole sectional separation structure schematic perspective drawing provided by the embodiment of the utility model;

[0018] Figure 5 It is the base plate and trigger lever mechanism whole sectional separation structure schematic perspective drawing provided by the embodiment of the utility model.

[0019] In the drawing: 1-base plate;2-trigger lever mechanism;3-punch rod mechanism;4-multistage linkage mechanism;5-connecting rod;6-feeding channel;101-extension;102-first mounting hole;103-second mounting hole;104-positioning groove;105-connection;201-two-stage trigger sleeve;202-one-stage trigger slide rod;203-pressed abutment;204-first return spring;205-ring connecting plate;206-second return spring;207-extended branch;301-one-stage punch sleeve;302-two-stage punch slide rod;303-ring boss;304-ring clamping groove;401-mounting plate;402-first slide rail;403-second slide rail;404-first sliding block;405-second sliding block;406-first connecting rod;407-second connecting rod;408-third connecting rod;409-telescopic connecting rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0021] Referring to Figures 1 to 5 The present application provides a technical scheme: a in-mold contact riveting equipment, including base plate 1, the surface of one side of base plate 1 is integrally provided with extension 101, the upper surfaces of base plate 1 and extension 101 are respectively provided with first installation hole 102 and second installation hole 103, trigger lever mechanism 2 and stamping lever mechanism 3 are respectively slidably installed in first installation hole 102 and second installation hole 103, multi-stage linkage mechanism 4 is fixedly connected below base plate 1, trigger lever mechanism 2 includes two-stage trigger sleeve 201 and one-stage trigger slide rod 202, stamping lever mechanism 3 includes one-stage stamping sleeve 301 and two-stage stamping slide rod 302, two-stage trigger sleeve 201 and two-stage stamping slide rod 302 and one-stage trigger slide rod 202 and one-stage stamping sleeve 301 are movably connected through multi-stage linkage mechanism 4, one side of the upper surface of base plate 1 is fixedly connected with feeding channel 6, one end of feeding channel 6 is provided with positioning groove 104, and positioning groove 104 is coaxially arranged at the top end of first installation hole 102 and communicates with first installation hole 102.

[0022] Referring to Figures 2 to 5 Two-stage trigger sleeve 201 is slidably installed in second installation hole 103, one-stage trigger slide rod 202 is slidably connected in two-stage trigger sleeve 201, one-stage trigger slide rod 202 is integrally provided with pressure abutting portion 203 at the top end, one end of first reset spring 204 is fixedly connected to the bottom surface of pressure abutting portion 203, the other end of first reset spring 204 is fixedly connected to the upper surface of extension 101, annular connecting plate 205 is integrally arranged on the outer wall of the bottom end of two-stage trigger sleeve 201, one end of second reset spring 206 is fixedly connected to the upper surface of annular connecting plate 205, and the other end of second reset spring 206 is fixedly connected to the bottom surface of extension 101.

[0023] The secondary trigger sleeve 201 is slidably installed in the second mounting hole 103, and the primary trigger slide rod 202 is slidably connected in the secondary trigger sleeve 201. The pressure- bearing abutting part 203 at the top end of the primary trigger slide rod 202 is used to bear the pressure of the downward movement of the upper die, and the first reset spring 204 is connected between the bottom of the pressure-bearing abutting part 203 and the upper surface of the extension part 101 to reset the primary trigger slide rod 202 after the pressure disappears. The annular connecting plate 205 at the bottom end of the secondary trigger sleeve 201 is used to connect the second reset spring 206, and the other end of the second reset spring 206 is fixed to the bottom surface of the extension part 101 to ensure that the secondary trigger sleeve 201 can also be reset in time after the action. When the contact point enters the positioning groove 104, the downward movement of the upper die compresses the pressure-bearing abutting part 203, the primary trigger slide rod 202 slides downward, and the first reset spring 204 is compressed; when the secondary trigger sleeve 201 is displaced downward together with the primary trigger slide rod 202, the second reset spring 206 is stretched. After the upward movement of the upper die, the two-stage reset spring resets the primary trigger slide rod 202 and the secondary trigger sleeve 201 quickly, respectively. The two-stage reset spring ensures that the trigger lever mechanism 2 can be quickly and stably reset after each triggering action, and prepares for the next riveting operation, thereby improving the working efficiency and stability of the equipment.

[0024] Further, the primary punching sleeve 301 is slidably installed in the first mounting hole 102, and the secondary punching slide rod 302 is slidably installed in the primary punching sleeve 301. The top end of the secondary punching slide rod 302 is integrally provided with an annular boss 303, the inner wall of the top end of the primary punching sleeve 301 is provided with an annular clamping groove 304 corresponding to the annular boss 303, and the outer diameter of the primary punching sleeve 301 is consistent with the inner diameter of the positioning groove 104.

[0025] The first level stamping sleeve 301 slides in the first mounting hole 102, and the second level stamping slide rod 302 slides in the first level stamping sleeve 301. The annular boss 303 at the top end of the second level stamping slide rod 302 is correspondingly clamped with the annular clamping groove 304 on the inner wall of the top end of the first level stamping sleeve 301, so that the first level stamping sleeve 301 can drive the second level stamping slide rod 302 to rise synchronously when the first level stamping sleeve 301 rises. The outer diameter of the first level stamping sleeve 301 is consistent with the inner diameter of the positioning groove 104, so that the contact in the positioning groove 104 can be accurately driven to rise by the first level stamping sleeve 301 and the second level stamping slide rod 302 during the stamping process. In the first pre-pressing stage, the first level stamping sleeve 301 and the second level stamping slide rod 302 jointly rise to drive the contact to gradually contact the base material; in the second stamping stage, the second level stamping slide rod 302 independently moves upward relative to the first level stamping sleeve 301 to complete the riveting action. The cooperation design of the annular boss 303 and the annular clamping groove 304 ensures the coordination and accuracy of the two-level stamping action, and improves the quality and reliability of the riveting. The precise cooperation of the first level stamping sleeve 301 and the positioning groove 104 ensures the positioning accuracy of the contact during the stamping process. It should be noted that during the rising process of the first level stamping sleeve 301 and the second level stamping slide rod 302, the contact in the feeding channel 6 cannot enter the positioning groove 104.

[0026] Further, the multi-stage linkage mechanism 4 includes a mounting plate 401 fixedly connected with the base plate 1 through a plurality of connecting rods 5, and the mounting plate 401 is fixedly installed with first and second slide rails 402 and 403 arranged in parallel on the upper surface thereof, and first and second sliding blocks 404 and 405 are slidably installed on the first and second slide rails 402 and 403, respectively. One end of the first sliding block 404 is rotatably connected with one end of a first connecting rod 406, the other end of the first connecting rod 406 is rotatably connected with the bottom end outer wall of the first level stamping sleeve 301, the other end of the first sliding block 404 is rotatably connected with one end of a second connecting rod 407, the other end of the second connecting rod 407 is rotatably connected with the bottom end of the first level trigger slide rod 202, one end of the second sliding block 405 is rotatably connected with one end of a third connecting rod 408, the other end of the third connecting rod 408 is rotatably connected with the bottom end of the second level stamping slide rod 302, and an extension support 207 is integrally arranged on one side of the outer wall of the annular connecting plate 205. The bottom end of the extension support 207 is rotatably connected with one end of a telescopic connecting rod 409, and the other end of the telescopic connecting rod 409 is rotatably connected with one end of the second sliding block 405.

[0027] The mounting plate 401 of the multi-stage linkage mechanism 4 is fixedly connected with the base plate 1 through several connecting rods 5. The first sliding rail 402 and the second sliding rail 403 are installed on the upper surface of the mounting plate 401 in parallel, and the first sliding block 404 and the second sliding block 405 slide on them respectively. When the first trigger sliding rod 202 slides downward, the first sliding block 404 is driven by the second connecting rod 407 to slide on the first sliding rail 402 to one side of the first mounting hole 102, and then the first sliding block 404 drives the first stamping sleeve 301 to move upward in the first mounting hole 102 through the first connecting rod 406. The upward movement of the second stamping sliding rod 302 drives the second sliding block 405 to slide on the second sliding rail 403 to one side of the first mounting hole 102 through the third connecting rod 408, and then drives the telescopic connecting rod 409 to extend. The extension support rod 207 on the annular connecting plate 205 connects the telescopic connecting rod 409, and when the second trigger sleeve 201 moves downward with the first trigger sliding rod 202, the telescopic connecting rod 409 is driven to retract, thereby further driving the second stamping sliding rod 302 to move upward independently of the first stamping sleeve 301. The action transmission and cooperative movement between the trigger rod mechanism 2 and the stamping rod mechanism 3 are realized, so that the overall operation of the equipment is more stable and reliable, and the precision and efficiency of riveting are improved.

[0028] Further, anti-rotation limiting structures are arranged between the first mounting hole 102, the first stamping sleeve 301 and the second stamping sliding rod 302, and between the second mounting hole 103, the first stamping sleeve 301 and the second stamping sliding rod 302.

[0029] The anti-rotation limiting structures arranged between the first mounting hole 102, the first stamping sleeve 301 and the second stamping sliding rod 302, and between the second mounting hole 103, the first stamping sleeve 301 and the second stamping sliding rod 302, for example, can adopt the key groove and key matching mode, or limit protrusions and grooves arranged on the outer wall of the component and the inner wall of the mounting hole, to limit the rotation freedom degree of the component during sliding. During the entire riveting process, these anti-rotation limiting structures ensure that the trigger rod mechanism 2 and the stamping rod mechanism 3 can only slide in the predetermined straight line direction, avoiding position deviation caused by self-rotation. The precision and stability of the equipment are improved, the riveting position deviation caused by self-rotation of the components is reduced, and the quality of the product is improved.

[0030] Further, a plurality of connecting portions 105 are integrally arranged on the two side surfaces of the base plate 1.

[0031] The plurality of connecting portions 105 integrally arranged on the two side surfaces of the base plate 1 can be in the form of threaded holes, connecting ears or the like. During actual installation, connecting portions 105 are connected with the lower die through bolts, nuts and the like, so that the entire die-in contact riveting equipment is stably installed on the lower die. During equipment operation, the connecting portions 105 bear the weight of the equipment and the impact force during operation, so as to ensure that the equipment will not be displaced or shaken.

[0032] Further, the top surface of the pressure receiving abutting part 203 is provided with an anti-skid protective rubber pad.

[0033] The anti-skid protective rubber pad is provided on the top surface of the pressure receiving abutting part 203, and the rubber pad can be made of rubber or other materials with high friction coefficient and certain elasticity. When the contact point enters the positioning groove 104, the upper die descends to press the pressure receiving abutting part 203, and the anti-skid protective rubber pad increases the friction between the two, so that the pressure of the upper die can be more effectively transmitted to the first trigger sliding rod 202. At the same time, the elasticity of the rubber pad can buffer the pressure and protect the pressure receiving abutting part 203 and the surface of the upper die from being damaged.

[0034] Working principle: through the connecting part 105, the whole substrate 1 is installed on the lower die, the trigger lever mechanism 2 extends between the lower die and the upper die. One end of the feeding channel 6 is connected with the external vibration feeding device, by means of the vibration feeding device, the contact point enters the feeding channel 6 inside in turn, and finally enters the positioning groove 104 to complete positioning. When the contact point enters the positioning groove 104, the upper die goes down and overflows to compress the pressure abutment part 203 of the first trigger slide rod 202. The first trigger slide rod 202 slides downward, which drives the first sliding block 404 to slide along the first slide rail 402 to one side of the first mounting hole 102 through the extension support rod 207. Then, the first trigger sleeve 301 is displaced upward on the first mounting hole 102 by the first sliding block 404 through the first connecting rod 406. Since the annular boss 303 at the top of the second stamping slide rod 302 is clamped in the annular clamping groove 304 at the top of the first trigger sleeve 301, the first trigger sleeve 301 will drive the second trigger sleeve 302 to rise synchronously when it rises. Both of them drive the contact point in the positioning groove 104 to rise, so that it gradually contacts the base material, thereby realizing the first pre-pressing. In the process of the second trigger sleeve 302 rising, the second sliding block 405 slides along the second slide rail 403 to one side of the first mounting hole 102 through the third connecting rod 408, thereby driving the telescopic connecting rod 409 to extend. When the pre-pressing stage is completed, the telescopic connecting rod 409 reaches the maximum stroke. When the first pre-pressing is completed and the telescopic connecting rod 409 reaches the maximum stroke, the pressure abutment part 203 abuts against the top of the second trigger sleeve 201. At this time, the second trigger sleeve 201 is pressed and displaced downward together with the first trigger slide rod 202. This action drives the telescopic connecting rod 409 to start to shrink until the telescopic connecting rod 409 shrinks to the minimum stroke, thereby further driving the second sliding block 405 to continue to displace. In turn, the second trigger sleeve 302 is driven to independently move upward relative to the first trigger sleeve 301, thereby completing the second pressing and firmly riveting the contact point on the base material. Subsequently, after the upper die completes the pressing action and starts to go up, the first trigger slide rod 202 loses the pressure. Under the action of the first return spring 204 and the second return spring 206, the first trigger slide rod 202 and the second trigger sleeve 201 are quickly reset. At the same time, the first trigger sleeve 301 and the second trigger sleeve 302 are also reset synchronously under the action of gravity and the multi-stage linkage mechanism 4, and fall back into the first mounting hole 102, waiting for the next contact point to enter the positioning groove 104 and start the next riveting work.

[0035] The preferred embodiments of the utility model have been described above, and are not used to limit the utility model. For those skilled in the art, the utility model can be changed and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An in-mold contact riveting device, characterized in that, The system includes a substrate, on one side of which an extension is integrally formed. A first mounting hole and a second mounting hole are respectively formed through the upper surfaces of the substrate and the extension. A trigger rod mechanism and a stamping rod mechanism are slidably mounted in the first and second mounting holes, respectively. A multi-stage linkage mechanism is fixedly connected below the substrate via a connecting rod. The trigger rod mechanism includes a secondary trigger sleeve and a primary trigger slide rod. The stamping rod mechanism includes a primary stamping sleeve and a secondary stamping slide rod. The secondary trigger sleeve and the secondary stamping slide rod, as well as the primary trigger slide rod and the primary stamping sleeve, are movably connected via the multi-stage linkage mechanism. A feeding channel is fixedly connected to one side of the upper surface of the substrate. A positioning groove is provided at one end of the feeding channel. The positioning groove is coaxially positioned at the top of the first mounting hole and communicates with the first mounting hole.

2. The in-mold contact riveting device as described in claim 1, characterized in that: The secondary trigger sleeve is slidably installed in the second mounting hole, and the primary trigger slide rod is slidably connected in the secondary trigger sleeve. The top end of the primary trigger slide rod is integrally provided with a pressure-bearing abutment part, and one end of the first return spring is fixedly connected to the bottom surface of the pressure-bearing abutment part. The other end of the first return spring is fixedly connected to the upper surface of the extension part. The outer wall of the bottom end of the secondary trigger sleeve is integrally provided with an annular connecting plate, and one end of the second return spring is fixedly connected to the upper surface of the annular connecting plate. The other end of the second return spring is fixedly connected to the bottom surface of the extension part.

3. The in-mold contact riveting device as described in claim 1, characterized in that: The primary stamping sleeve is slidably installed in the first mounting hole, and the secondary stamping slide rod is slidably installed in the primary stamping sleeve. The top end of the secondary stamping slide rod is integrally provided with an annular boss, and the inner wall of the top end of the primary stamping sleeve is provided with an annular groove corresponding to the annular boss. The outer diameter of the primary stamping sleeve is consistent with the inner diameter of the positioning groove.

4. The in-mold contact riveting equipment as described in claim 2, characterized in that: The multi-stage linkage mechanism includes a mounting plate, which is fixedly connected to a base plate via several connecting rods. A first slide rail and a second slide rail are fixedly mounted parallel to each other on the upper surface of the mounting plate. A first slider and a second slider are slidably mounted on the first and second slide rails, respectively. One end of the first slider is rotatably connected to one end of a first connecting rod, and the other end of the first connecting rod is rotatably connected to the outer wall of the bottom end of a first-stage stamping sleeve. The other end of the first slider is rotatably connected to one end of a second connecting rod, and the other end of the second connecting rod is rotatably connected to the bottom end of a first-stage trigger slide rod. One end of the second slider is rotatably connected to one end of a third connecting rod, and the other end of the third connecting rod is rotatably connected to the bottom end of a second-stage stamping slide rod. An extension support rod is integrally provided on one side of the outer wall of the annular connecting plate. The bottom end of the extension support rod is rotatably connected to one end of a telescopic connecting rod, and the other end of the telescopic connecting rod is rotatably connected to one end of the second slider.

5. The in-mold contact riveting device as described in claim 1, characterized in that: Anti-rotation limiting structures are provided between the first mounting hole, the first-stage stamping sleeve and the second-stage stamping slide rod, as well as between the second mounting hole, the first-stage stamping sleeve and the second-stage stamping slide rod.

6. The in-mold contact riveting device as described in claim 1, characterized in that: Several connecting portions are integrally formed on both sides of the substrate.

7. The in-mold contact riveting device as described in claim 2, characterized in that: The top surface of the pressure-bearing contact part is provided with an anti-slip protective pad.

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