A punching and riveting mechanism

Abstract

The present invention discloses a riveting mechanism, comprising a frame; a positioning member connected to the frame; a riveting module, comprising a first power device, a first push block, a first slider, a first elastic member and a punch, wherein the first push block is provided with a first inclined surface, the first slider is slidably connected to the frame and abuts against the first inclined surface, the punch is connected to the first slider, the first power device can drive the first slider to move toward the positioning member via the first push block, and the first elastic member can drive the first slider to reset; a clamping module, wherein the clamping module includes a clamping claw, and the clamping claw is used to clamp the workpiece to be processed between the positioning member and the punch. The present invention adopts the first slider to cooperate with the first push block with the first inclined surface to drive the punch to impact the workpiece to be processed to perform the riveting action. The stroke is relatively short, and the punch can contact and squeeze the workpiece to be processed at a relatively high speed, thereby shortening the time of a single riveting operation and improving processing efficiency.

Description

Technical Field

[0001] The present invention relates to the field of automation equipment, in particular to a punching and riveting mechanism. Background Art

[0002] Riveting is a common way to achieve connections between parts, such as the connection between the iron core and the iron sheet on a relay. In related technologies, the commonly used riveting equipment is a rotary riveting machine. Since the riveted head keeps rotating during operation, the riveted head usually contacts the parts at a relatively low speed, and after contacting the parts, it also needs to be fed a certain distance at a relatively low speed, resulting in a long single riveting time and low efficiency of the rotary riveting machine. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a punch riveting mechanism that can improve construction efficiency.

[0004] One embodiment of the present invention provides a riveting mechanism, comprising:

[0005] frame;

[0006] a positioning member connected to the frame;

[0007] A punching and riveting die set includes a first power device, a first push block, a first slider, a first elastic member, and a punch. The first push block is provided with a first inclined surface. The first slider is slidably connected to the frame and abuts against the first inclined surface. The punch is connected to the first slider. The first power device can drive the first slider to move toward the positioning member via the first push block. The first elastic member can drive the first slider to reset.

[0008] The clamping die set includes a clamping jaw, and the clamping jaw is used to clamp the workpiece to be processed between the positioning member and the punch.

[0009] The punching and riveting mechanism of the embodiment of the present invention has at least the following beneficial effects:

[0010] This embodiment uses a first slider to cooperate with a first push block with a first inclined surface to drive the punch to impact the workpiece to be processed to perform the riveting action. The stroke is relatively short, and the punch can contact and squeeze the workpiece to be processed at a relatively high speed, thereby shortening the time of a single riveting and improving processing efficiency.

[0011] According to some other embodiments of the present invention, the punching and riveting mechanism further includes a positioning member driving module, which is connected to the frame and can drive the positioning member to move toward the punch.

[0012] According to some other embodiments of the riveting mechanism of the present invention, the positioning member driving module includes a second power device, a second push block, a second slider and a second elastic member, the second push block is provided with a second inclined surface, the second slider is slidably connected to the frame and abuts against the second inclined surface, the positioning member is connected to the second slider, the second power device can drive the second slider to move toward the punch through the second push block, and the second elastic member can drive the second slider to reset.

[0013] According to some other embodiments of the punching and riveting mechanism of the present invention, the first power device and the second power device are both cylinders.

[0014] According to some other embodiments of the riveting mechanism of the present invention, the clamping module further includes a third power device and a third slider, the third slider is slidably connected to the frame, the third power device can drive the third slider to move along the movement direction of the punch, and the clamp is connected to the third slider.

[0015] According to some other embodiments of the punching and riveting mechanism of the present invention, the clamping module further includes a fourth power device and a fourth slider, the fourth power device and the fourth slider are both connected to the third slider, the fourth power device can drive the fourth slider to move in a direction perpendicular to the movement direction, and the clamp is connected to the fourth slider.

[0016] According to some other embodiments of the punch riveting mechanism of the present invention, a portion of the first sliding block that abuts against the first inclined surface is provided with a third inclined surface or an outwardly convex arc surface parallel to the first inclined surface.

[0017] According to some other embodiments of the present invention, the punching and riveting mechanism further includes a first connecting member and a threaded fastener, the first connecting member includes a first arm and a second arm, the first arm is provided with a mounting hole, the second arm is provided with a first connecting hole, the first arm is fitted with one side of the first slider, the second arm is fitted with the other side of the first slider, and is connected to the first slider through the first connecting hole and the threaded fastener, and the punch is inserted into the mounting hole.

[0018] According to some other embodiments of the present invention, the punching and riveting mechanism further includes a second connecting member, which includes a third arm and a fourth arm. The fourth arm is provided with a second connecting hole, and the second arm is also provided with a plug hole connected to the mounting hole. The third arm is inserted into the plug hole and abuts against the punch. The fourth arm is fitted with a side surface of the second arm and is connected to the first connecting member through the second connecting hole and the threaded fastener.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a three-dimensional schematic diagram of the punching and riveting mechanism in one direction according to an embodiment of the present invention;

[0022] Figure 2 It is a three-dimensional schematic diagram of the punching and riveting mechanism according to an embodiment of the present invention from another direction;

[0023] Figure 3 This is a partially exploded schematic diagram of a punching and riveting module according to an embodiment of the present invention;

[0024] Figure 4 yes Figure 3 A magnified schematic diagram of area A;

[0025] Figure 5 is a three-dimensional schematic diagram of a clamping module according to an embodiment of the present invention;

[0026] Figure 6 This is a bottom view of the clamping module according to an embodiment of the present invention;

[0027] Figure 7 It is a three-dimensional schematic diagram of a positioning member driving module according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the concept and technical effects of the present invention in conjunction with the embodiments to fully understand the purpose, features and effects of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0029] In the description of the embodiments of the present invention, if orientation descriptions are involved, the orientations or positional relationships indicated by "up", "down", "front", "back", "left", "right", etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0030] In the description of the embodiments of the present invention, if a certain feature is referred to as being "set", "fixed", "connected" or "installed" on another feature, it may be directly set, fixed or connected on the other feature, or it may be indirectly set, fixed, connected or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one; if "multiple" is involved, it means more than two; if "greater than", "less than" or "exceeds" is involved, it should be understood as not including the number itself; if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] First embodiment

[0032] Reference Figure 1 、 Figure 2 , Figure 1 、 Figure 2 The three-dimensional schematic diagrams of the punching and riveting mechanism of the embodiment of the present invention in different directions are respectively shown. The punching and riveting mechanism of this embodiment includes a frame 100, a positioning member 200, a punching and riveting module 300, and a clamping module 400. The frame 100 is used to carry other parts or modules. The positioning member 200 is connected to the frame 100 and is used to support and position the workpiece to be processed. The punching and riveting module 300 is used to perform punching and riveting on the workpiece to be processed. The clamping module 400 is used to clamp the workpiece to be processed between the positioning member 200 and the punching and riveting module 300 to facilitate the punching and riveting of the punching and riveting module 300.

[0033] Specifically, the punching and riveting mechanism of this embodiment is arranged in an up-down arrangement, that is, the positioning member 200 is located above the bracket 100, the punching and riveting module 300 is located below the bracket 100, and the clamping module 400 is approximately located in the middle of the bracket 100. The up-down arrangement can reduce the space occupied by the punching and riveting mechanism in the horizontal direction and make full use of the space in the height direction. The bracket 100 includes a bottom plate 110, a top plate 120 and a connecting plate 130 connected between the bottom plate 110 and the top plate 120. The bottom plate 110 and the top plate 120 are parallel to each other. Figure 1 In the front-to-back direction, the connecting plate 130 is parallel to Figure 1 The up and down directions in .

[0034] In this embodiment, the positioning member 200 is a positioning rod arranged along the up-down direction.

[0035] Reference Figures 1 to 4 , Figure 3 A partially exploded schematic diagram of the punching and riveting module of this embodiment is shown. Figure 4 Shown Figure 3A schematic diagram of the enlarged area A, the punch riveting module includes a first power device 310, a first push block 320, a first slider 330, a first elastic member 340 and a punch 350. The first push block 320 is provided with a first inclined surface 321, the inclination direction of the first inclined surface 321 is: along Figure 3 In the direction from left to right, the first inclined surface 321 is inclined downward, and in addition, along Figure 3 In the left and right directions, both ends of the first inclined surface 321 are connected to a transition plane 322. A first guide seat 111 is provided on the bottom plate 110 of the frame 100, and a second guide seat 112 is also provided on the top of the first guide seat 111. Guide grooves are formed inside the first guide seat 111 and the second guide seat 112, respectively, and the guide grooves of the two are connected to each other. The first push block 320 is located in the guide groove of the first guide seat 111 and can slide in the guide groove. The first power unit 310 includes a retractable drive shaft, such as a cylinder, an electric cylinder, etc. The drive shaft of the first power unit 310 is connected to the first push block 320, and can drive the first push block 320 to slide in the left and right directions.

[0036] The first slider 330 is located in the guide groove of the second guide seat 112 and can only move in the up and down directions. The punch 350 for performing the riveting action is connected to the upper end of the first slider 330. The first elastic member 340 can be a spring, one end of which is in contact with the frame 100 and the other end is in contact with the first slider 330. The lower end of the first slider 330 is in contact with the first inclined surface 321. In this way, when the first power device 310 drives the first push block 320 to move to the right, the first slider 330 drives the punch 350 to move upward to perform the riveting action, and the first elastic member 340 is compressed; when the first power device 310 drives the first push block 320 to move to the left, the first elastic member 340 drives the first slider 330 and the punch 350 to reset.

[0037] Reference Figure 5 、 Figure 6 , Figure 5 shows a three-dimensional schematic diagram of the clamping module of this embodiment, Figure 6This is a bottom view of the clamping module of this embodiment. The clamping module 400 includes a clamping jaw 410, a fifth power unit 420, a connecting rod mechanism 430, a fifth slider 440, and a connecting plate 450. There are two clamping jaws 410 and two fifth sliders 440, each of which is slidably connected to the connecting plate 450 via a slide rail. Each fifth slider 440 is connected to a clamping jaw 410. The fifth power unit 420 includes a retractable drive shaft, such as a pneumatic cylinder or electric cylinder. The drive shaft of the fifth power unit 420 is connected to one end of the connecting rod mechanism 430, and the other end of the connecting rod mechanism 430 is rotatably connected to the two sliders 440. When the drive shaft retracts and retracts, the connecting rod mechanism 430 drives the two sliders 440 and the clamping jaw 410 to move in the same and opposite directions, thereby clamping and opening the clamping jaw 410. The clamping module 400 of this embodiment can be constructed using conventional techniques and will not be described in detail here.

[0038] In this embodiment, the clamping module 400 and the positioning member 200 can both be fixed. For example, the positions of the clamping module 400 and the positioning member 200 on the frame 100 are pre-set. When batch processing is performed, the sizes of the workpieces to be processed are kept consistent. Therefore, after the clamping module 400 clamps the workpieces to be processed, the upper ends of the workpieces can just abut against the positioning member 200. At this time, only the punch 350 needs to move upward to perform the riveting. Of course, at least one of the clamping module 400 and the positioning member 200 can also be movable in the vertical direction to accommodate workpieces of different sizes.

[0039] This embodiment uses a first slider 330 to cooperate with a first push block 320 with an inclined surface to drive the punch 350 to impact the workpiece to be processed to perform a riveting action. The stroke is relatively short, and the punch 350 can contact and squeeze the workpiece to be processed at a relatively high speed, thereby shortening the time of a single riveting and improving processing efficiency.

[0040] Second embodiment

[0041] This embodiment is an improvement on the first embodiment. Figure 1 and Figure 2 In this embodiment, the first power device 310 is a cylinder. The cylinder has a fast response speed and a short stroke, which is conducive to achieving rapid movement of the punch 350 and has a low cost.

[0042] Third embodiment

[0043] This embodiment is an improvement on the first embodiment. Figure 1 and Figure 2 This embodiment further includes a positioning member driving module 500, which is connected to the frame 100 and can drive the positioning member 200 toward the direction of the punch 350 (for example Figure 1This embodiment provides a positioning member driving module 500 to drive the positioning member 200 to move, thereby being able to adapt to the size changes of the workpiece to be processed in the vertical direction.

[0044] Fourth embodiment

[0045] This embodiment is an improvement on the second embodiment. Figure 1 、 Figure 2 and Figure 7 , Figure 7 The present embodiment shows a three-dimensional schematic diagram of the positioning member driving module, the positioning member driving module 500 second power device 510, the second push block 520, the second slider 530 and the second elastic member 540. The second push block 520 is provided with a second inclined surface 521, the inclination direction of the second inclined surface 521 is: along Figure 7 In the direction from back to front, the second inclined surface 521 is inclined upward, and in addition, along Figure 7 In the front-to-back direction, both ends of the second inclined surface 521 are connected to transitional flat surfaces 522. A third guide seat 121 is provided on the top plate 120 of the frame 100. A fourth guide seat 122 is also provided at the bottom of the third guide seat 121. Guide grooves are formed in the interiors of the third guide seat 121 and the fourth guide seat 122, respectively, and the guide grooves of the third guide seat 121 and the fourth guide seat 122 are interconnected. The second push block 520 is located within the guide groove of the third guide seat 121 and is able to slide within the guide groove. The second power unit 510 includes a retractable drive shaft. When the mechanism's own movement is required to accommodate workpieces of varying sizes, the second power unit 510 can be an electric cylinder that controls the extension distance of the drive shaft. When adaptation to workpieces of varying sizes is not required, or when manual adjustment by the operator is required, the second power unit 510 can also be a pneumatic cylinder. The drive shaft of the second power unit 510 is connected to the second push block 520, driving the second push block 520 to slide in the front-to-back direction.

[0046] The second slider 530 is located in the guide groove of the fourth guide seat 122 and can only move in the up and down directions. The positioning member 200 is connected to the lower end of the second slider 530. The second elastic member 540 can be a spring, one end of which is in contact with the frame 100 and the other end is in contact with the second slider 530. The upper end of the second slider 530 is in contact with the second inclined surface 521. In this way, when the second power device 510 drives the second push block 520 to move forward, the second slider 530 drives the positioning member 200 to move downward, performs the positioning action, and the second elastic member 540 is compressed; when the second power device 510 drives the second push block 520 to move to the left, the second elastic member 540 drives the second slider 530 and the positioning member 200 to reset.

[0047] Based on the structure of this embodiment, the movement process of the punching and riveting mechanism is as follows: after the clamping module 400 clamps the workpiece to be processed between the positioning member 200 and the punch 350, the positioning member 200 moves downward to press against the upper end of the workpiece to be processed, and then the punch 350 moves upward to perform the punching and riveting action.

[0048] Fifth embodiment

[0049] This embodiment is an improvement on the first embodiment. Figure 1 、 Figure 2 、 Figure 5 and Figure 6 The clamping module 400 of this embodiment further includes a third power device 460 and a third slider 470. The third slider 470 is slidably connected to the connecting plate 130 of the frame 100. The third power device 460 is also connected to the connecting plate 130 and includes a retractable drive shaft. The drive shaft of the third power device 460 is connected to the third slider 470 and can drive the third slider 470 along the movement direction of the punch 350 (for example, Figure 5 The jaws 410 and the driving mechanism for driving the jaws 410 to open and close are both connected to the third slider 470. That is, in this embodiment, the jaws 410 can drive the workpiece to move in the up and down directions to adapt to the dimensional changes of the workpiece in the up and down directions. At this time, the positioning member 200 can be fixed. Of course, the jaws 410 and the positioning member 200 can also be able to move in the up and down directions. It should be noted that the "connection" referred to in this embodiment can be either a direct connection or an indirect connection through other components. Similar to the fourth embodiment, the third power device 460 of this embodiment can also be an electric cylinder or a pneumatic cylinder.

[0050] Sixth embodiment

[0051] This embodiment is an improvement on the fifth embodiment. Figure 1 、 Figure 2 、 Figure 5 and Figure 6 The clamping module 400 of this embodiment further includes a fourth power device 480 and a fourth slider 490. The fourth power device 480 is fixedly connected to the third slider 470, and the fourth slider 490 is slidably connected to the third slider 470. The fourth power device 480 includes a retractable drive shaft. The drive shaft of the fourth power device 480 is connected to the fourth slider 490, and can drive the fourth slider 490 in a direction perpendicular to the movement direction of the punch 350 (for example, Figure 5 The clamping jaw 410 is connected to the fourth slider 490 through the connecting plate 450, so that the clamping jaw 410 can move in the forward direction to expand the range of the clamping jaw 410 for clamping the workpiece to be processed.

[0052] Based on the structure of this embodiment, the movement process of the punching and riveting mechanism is as follows: the clamping jaw 410 clamps the workpiece to be processed from the loading mechanism through movement in the front-to-back direction or a combined movement in the front-to-back direction and the up-down direction, and then drives the workpiece to be processed to move between the positioning member 200 and the punch 350, and then the positioning member 200 moves downward to support the upper end of the workpiece to be processed, and finally the punch 350 moves upward to perform the punching and riveting action.

[0053] Seventh embodiment

[0054] This embodiment is an improvement on the first embodiment. Figure 3 、 Figure 4 In this embodiment, the portion of the first slider 330 that contacts the first inclined surface 321 is provided with a third inclined surface 331 that is parallel to the first inclined surface 321. This third inclined surface 331 can reduce damage to the first inclined surface 321 caused by sharp corners on the first slider 330. In other embodiments of the present invention, the portion of the first slider 330 that contacts the first inclined surface 321 can also be provided with an outwardly convex curved surface. This outwardly convex curved surface can not only reduce damage to the first inclined surface 321 caused by sharp corners on the first slider 330, but also reduce the contact area, thereby reducing friction during sliding.

[0055] Eighth embodiment

[0056] This embodiment is an improvement on the first embodiment. Figure 3 、 Figure 4 This embodiment further includes a first connecting member 610 and a threaded fastener (not shown). The first connecting member 610 includes a first arm 611 and a second arm 612. The first arm 611 and the second arm 612 are perpendicular to each other to form an L-shaped structure. The first arm 611 is provided with a mounting hole 613, and the second arm 612 is provided with a first connecting hole 614. When installed, the first arm 611 is connected to a side surface of the first slider 330 (for example, Figure 4 The second arm 612 is in contact with the other side surface of the first slider 330 (eg Figure 4 The first connector 610 is fitted with the rear side surface 333 of the first slider 330 and connected to the first slider 330 via the first connecting hole 614 with the threaded fastener. The punch 350 is inserted into the mounting hole 613. In this embodiment, the first connector 610 can stagger its first connecting hole 614 for connecting to the first slider 330 on the rear side surface of the first slider 330, making full use of other positions on the first slider 330 and avoiding occupying the smaller upper side surface.

[0057] Ninth embodiment

[0058] This embodiment is an improvement on the eighth embodiment. Figure 3 、 Figure 4This embodiment also includes a second connecting member 620, which includes a third arm 621 and a fourth arm 622. The third arm 621 and the fourth arm 622 are perpendicular to each other, forming an L-shaped structure. The fourth arm 622 is provided with a second connecting hole 623, and the second arm 612 of the first connecting member 610 is also provided with a plug hole 615 connected to the installation hole 613. During installation, the third arm 621 is inserted into the plug hole 615 and abuts against the limiting plane on the outer surface of the punch 350. The fourth arm 622 and a side surface of the second arm 612 (for example Figure 4 The second connecting member 620 of this embodiment can further enhance the stability of the connection of the punch 350.

[0059] While the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above. Various modifications may be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features within the embodiments may be combined with one another unless there is a conflict.

Claims

1. A punch riveting mechanism, characterized in that: include frame; a positioning member connected to the frame; A punching and riveting die set includes a first power device, a first push block, a first slider, a first elastic member, and a punch. The first push block is provided with a first inclined surface. The first slider is slidably connected to the frame and abuts against the first inclined surface. The punch is connected to the first slider. The first power device can drive the first slider to move toward the positioning member via the first push block. The first elastic member can drive the first slider to reset. A clamping die set, the clamping die set comprising a clamping jaw, the clamping jaw being used to clamp the workpiece to be processed between the positioning member and the punch; a positioning member driving module, the positioning member driving module being connected to the frame and capable of driving the positioning member to move toward the punch; The positioning member driving module includes a second power device, a second push block, a second slider and a second elastic member. The second push block is provided with a second inclined surface. The second slider is slidably connected to the frame and abuts against the second inclined surface. The positioning member is connected to the second slider. The second power device can drive the second slider to move toward the punch through the second push block. The second elastic member can drive the second slider to reset. The punching and riveting mechanism also includes a first connecting member and a threaded fastener. The first connecting member includes a first arm and a second arm. The first arm is provided with a mounting hole, and the second arm is provided with a first connecting hole. The first arm is in contact with one side of the first slider, and the second arm is in contact with the other side of the first slider, and is connected to the first slider through the first connecting hole and the threaded fastener. The punch is inserted into the mounting hole.

2. The punch riveting mechanism according to claim 1, characterized in that: The first power device is a cylinder.

3. The punch riveting mechanism according to claim 1, wherein: The clamping module also includes a third power device and a third slider. The third slider is slidably connected to the frame. The third power device can drive the third slider to move along the movement direction of the punch. The clamp is connected to the third slider.

4. The punch riveting mechanism according to claim 3, characterized in that: The clamping module also includes a fourth power device and a fourth slider, both of which are connected to the third slider. The fourth power device can drive the fourth slider to move in a direction perpendicular to the movement direction, and the clamp is connected to the fourth slider.

5. The punch riveting mechanism according to claim 1, characterized in that: A portion of the first sliding block that abuts against the first inclined surface is provided with a third inclined surface or an outwardly convex arc surface that is parallel to the first inclined surface.

6. The punch riveting mechanism according to claim 1, characterized in that: It also includes a second connecting member, which includes a third arm and a fourth arm. The fourth arm is provided with a second connecting hole, and the second arm is also provided with a plug hole connected to the mounting hole. The third arm is inserted into the plug hole and abuts against the punch. The fourth arm is fitted with a side surface of the second arm and is connected to the first connecting member through the second connecting hole and the threaded fastener.

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