Spin riveting device

Abstract

The utility model discloses a spin riveting device which comprises an upper fixing plate, a lower fixing plate, a guide rod, a bearing, a spin riveting rod, a spin riveting head, a pressing rod fixing plate, an outer pressing rod and a material pressing spring. The lower end of the guide rod is fixed to the lower fixing plate, the upper fixing plate movably sleeves the upper portion of the guide rod, the bearing is fixed to the middle of the upper fixing plate, the top face of the pressing rod fixing plate is fixed to the bottom face of the upper fixing plate, the upper portion of the spin riveting rod is fixed to an inner hole of the bearing, and the lower end of the spin riveting rod is fixed to the spin riveting head. The upper end of the outer pressing rod is movably arranged in the pressing rod fixing plate in a penetrating mode, the pressing spring is arranged in the pressing rod fixing plate in a sleeved mode, and the two ends of the pressing spring abut against the upper fixing plate and the upper end face of the outer pressing rod respectively. Corresponding spin riveting heads can be replaced according to the shapes of parts to be machined, machining of different spin riveting shapes is achieved, the application range is wide, and the device has the advantages of being rapid in part fixing, low in cost, good in maintainability, convenient to operate and the like.

Description

Technical Field

[0001] The utility model relates to the field of stamping, in particular to a rotary riveter. Background Art

[0002] Most of the top cover products have burrs after being stamped by stamping dies, such as lithium battery caps. Since most of the top cover products require no burrs, good sealing performance, good mechanical properties, etc., deburring processing is required. Traditional deburring processing is mostly done by workers using the spin riveting process. This processing method requires a lot of labor for workers and has low processing efficiency. Some industries also use stamping machines for stamping and deburring. This stamping processing method can easily damage the top cover products. Utility Model Content

[0003] The utility model aims to provide a rotary riveter which is easy to operate and has a wide application range.

[0004] To achieve the above purpose, the technical solution of the utility model is:

[0005] The utility model is a rotary riveter, comprising an upper fixing plate, a lower fixing plate, a guide rod, a bearing, a rotary riveting rod, a rotary riveting head, a pressure rod fixing plate, an outer pressure rod and a pressure spring;

[0006] The lower end of the guide rod is fixed on the lower fixed plate, the upper fixed plate is movably sleeved on the upper part of the guide rod, the bearing is fixed in the middle part of the upper fixed plate, the top surface of the pressure rod fixing plate is fixed on the bottom surface of the upper fixed plate, the upper end of the rivet rod passes through the pressure rod fixing plate and the inner hole of the bearing upward in sequence, the upper end of the rivet rod can be connected to the three-jaw chuck, the lower end of the rivet rod is fixed to the middle part of the top surface of the rivet head, the bottom surface of the rivet head presses the processing position on the lower fixed plate, the upper end of the outer pressure rod is movably inserted into the stepped hole on the pressure rod fixing plate, the lower end of the outer pressure rod is movably inserted into the stepped hole on the pressure rod fixing plate and then extends to the processing position on the lower fixed plate, the pressure spring is sleeved in the stepped hole on the pressure rod fixing plate and the two ends of the pressure spring are respectively pressed against the upper end surfaces of the upper fixed plate and the outer pressure rod.

[0007] The rotary rivet head is composed of a body and two convex edges; the two convex edges are respectively fixed at two ends of the body, and a circular arc transition is formed between the convex edges and the body.

[0008] The utility model also includes a support block and a cushion block; a circular hole and a rectangular groove are opened in the middle of the lower fixed plate, and the circular hole is connected to the rectangular groove; the support block is fixed in the rectangular groove on the bottom surface of the lower fixed plate, the cushion block is installed in the circular hole of the lower fixed plate and the bottom surface of the cushion block is in contact with the bottom surface of the support block, the top surface of the cushion block is lower than the top surface of the lower fixed plate, and a countersunk hole for placing the parts to be processed is formed between the top surface of the lower fixed plate and the cushion block.

[0009] There are four guide rods, which are symmetrically installed at four corners of the upper fixing plate and the lower fixing plate.

[0010] There are four external pressure rods, and the four external pressure rods are symmetrically installed on the pressure rod fixing plate.

[0011] After adopting the above scheme, since the utility model includes an upper fixed plate, a lower fixed plate, a guide rod, a bearing, a rivet rod, a rivet head, a pressure rod fixed plate, an external pressure rod, and a pressure spring, the part to be processed is placed on the processing position of the lower fixed plate, the upper fixed plate can be moved downward along the guide rod under the drive of external force, and the external pressure rod positions the part to be processed on the lower fixed plate under the spring force of the pressure spring, the rivet rod can drive the rivet head to rotate under the drive of external rotating power, and the rivet head presses downward toward the part to be processed to complete the deburring processing of the part, which has the advantages of quick part fixing, low cost, good maintainability, and easy operation; in addition, the utility model can replace the corresponding rivet head according to the shape of the part to be processed, so as to realize the processing of different rivet shapes, and has a wide range of applications.

[0012] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an axonometric drawing of the utility model;

[0014] Figure 2 It is a perspective view of the utility model;

[0015] Figure 3 It is a perspective view of the lower fixing plate of the utility model. DETAILED DESCRIPTION

[0016] like Figure 1-Figure 3 As shown, the utility model is a rotary riveter, comprising an upper fixing plate 1, a lower fixing plate 2, a guide rod 3, a bearing 4, a rotary riveting rod 5, a rotary riveting head 6, a pressure rod fixing plate 7, an outer pressure rod 8, a pressure spring 9, a support block 10, and a cushion block 20.

[0017] The lower end of the guide rod 3 is fixed on the lower fixed plate 2, the upper fixed plate 1 is movably sleeved on the upper part of the guide rod 2, the bearing 4 is fixed to the middle part of the upper fixed plate 1, the top surface of the pressure rod fixing plate 7 is fixed to the bottom surface of the upper fixed plate 1, the upper end of the rivet rod 5 passes through the pressure rod fixing plate 7 and the inner hole of the bearing 4 upward in turn, the upper end of the rivet rod 5 can be connected to the three-jaw chuck, the lower end of the rivet rod 5 is fixed to the middle part of the top surface of the rivet head 6, the bottom surface of the rivet head 6 presses the processing position on the lower fixed plate 2, the upper end of the external pressure rod 8 is movably inserted into the stepped hole 71 on the pressure rod fixing plate 7, the lower end of the external pressure rod 8 is movably inserted into the stepped hole 71 on the pressure rod fixing plate 7 and extends to the processing position on the lower fixed plate 2, the pressure spring 9 is sleeved in the stepped hole 71 on the pressure rod fixing plate 7 and the two ends of the pressure spring 9 are respectively against the upper end surfaces of the upper fixed plate 1 and the external pressure rod 8. A circular hole 21 and a rectangular groove 22 are provided in the middle of the lower fixed plate 2, and the circular hole 21 is connected to the rectangular groove 22; the support block 10 is fixed in the rectangular groove 22 on the bottom surface of the lower fixed plate 2, and the cushion block 20 is installed in the circular hole 21 of the lower fixed plate 2 and the bottom surface of the cushion block 20 is in contact with the bottom surface of the support block 10, and the top surface of the cushion block 20 is lower than the top surface of the lower fixed plate 2, and a countersunk hole 23 for placing the part 100 to be processed is formed between the top surface of the lower fixed plate 2 and the cushion block 20, and the countersunk hole 23 constitutes a processing position.

[0018] The rotary rivet head 6 is composed of a body 61 and two flanges 62 ; the two flanges 62 are respectively fixed at two ends of the body 61 , and a circular arc transition 63 is formed between the flange 62 and the body 61 .

[0019] In this embodiment, there are four guide rods 3 , and the four guide rods 3 are symmetrically installed at four corners of the upper fixing plate 1 and the lower fixing plate 2 .

[0020] In this embodiment, there are four external pressure rods 8 , and the four external pressure rods 8 are symmetrically mounted on the pressure rod fixing plate 7 .

[0021] The method of using the utility model is as follows:

[0022] The part 100 to be processed is placed on the processing position 23 of the lower fixed plate 2. The upper fixed plate 1 can move downward along the guide rod 3 under the drive of external force. The external pressure rod 8 positions the part 100 to be processed on the processing position 23 of the lower fixed plate 2 under the spring force of the pressing spring 9. The rivet rod 5 can drive the rivet head 6 to rotate under the drive of external rotating power. The rivet head 6 presses downward toward the part 100 to be processed. The descending height and rotation speed of the rivet head 6 are controlled to perform rivet processing to complete the deburring processing of the part 100. After the processing is completed, the rivet head 6 is raised, and the machine is stopped to take out the part 100.

[0023] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the specification should still fall within the scope covered by the patent of the present invention.

Claims

1. A rotary riveter, characterized in that: It includes an upper fixing plate, a lower fixing plate, a guide rod, a bearing, a rivet rod, a rivet head, a pressure rod fixing plate, an outer pressure rod, and a pressure spring; The lower end of the guide rod is fixed on the lower fixed plate, the upper fixed plate is movably sleeved on the upper part of the guide rod, the bearing is fixed in the middle part of the upper fixed plate, the top surface of the pressure rod fixing plate is fixed on the bottom surface of the upper fixed plate, the upper end of the rivet rod passes through the pressure rod fixing plate and the inner hole of the bearing upward in sequence, the upper end of the rivet rod can be connected to the three-jaw chuck, the lower end of the rivet rod is fixed to the middle part of the top surface of the rivet head, the bottom surface of the rivet head presses the processing position on the lower fixed plate, the upper end of the outer pressure rod is movably inserted into the stepped hole on the pressure rod fixing plate, the lower end of the outer pressure rod is movably inserted into the stepped hole on the pressure rod fixing plate and then extends to the processing position on the lower fixed plate, the pressure spring is sleeved in the stepped hole on the pressure rod fixing plate and the two ends of the pressure spring are respectively pressed against the upper end surfaces of the upper fixed plate and the outer pressure rod.

2. The rotary riveter according to claim 1, characterized in that: The rotary rivet head is composed of a body and two convex edges; the two convex edges are respectively fixed at two ends of the body, and a circular arc transition is formed between the convex edges and the body.

3. The rotary riveter according to claim 1, characterized in that: It also includes a support block and a cushion block; a circular hole and a rectangular groove are opened in the middle of the lower fixed plate, and the circular hole is connected to the rectangular groove; the support block is fixed in the rectangular groove on the bottom surface of the lower fixed plate, and the cushion block is installed in the circular hole of the lower fixed plate and the bottom surface of the cushion block is in contact with the bottom surface of the support block, and the top surface of the cushion block is lower than the top surface of the lower fixed plate, and a countersunk hole for placing the parts to be processed is formed between the top surface of the lower fixed plate and the cushion block.

4. The rotary riveter according to claim 1, characterized in that: There are four guide rods, which are symmetrically installed at four corners of the upper fixing plate and the lower fixing plate.

5. The rotary riveter according to claim 1, characterized in that: There are four external pressure rods, and the four external pressure rods are symmetrically installed on the pressure rod fixing plate.

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