Rivet pressing device for sheet metal machining

Abstract

The utility model relates to the technical field of sheet metal processing, in particular to a pressure riveting device for sheet metal processing, which comprises a processing table, a transmission frame fixedly mounted at the top of the processing table, a hydraulic cylinder mounted on the transmission frame, a fixing block fixedly mounted on the hydraulic cylinder, a stamping head mounted at the bottom of the fixing block, and two fixing structures symmetrically arranged below the stamping head. A sheet metal part body is arranged between the two fixing structures, and a positioning supporting structure is arranged above the sheet metal part body. Through the arrangement of the positioning supporting structure, the hydraulic cylinder drives the stamping head to press downwards to fix the sliding block on the sheet metal part body, the rivet body can be accurately positioned and installed on the sheet metal part body, meanwhile, the mode that the rivet body is manually held by hands to be fixed is avoided, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to a pressure riveting device, in particular to a pressure riveting device for sheet metal processing, belonging to the technical field of sheet metal processing. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal plates, including shearing, punching, cutting, folding, riveting, splicing, forming, etc. Sheet metal parts are workpieces processed by sheet metal processing. When riveting sheet metal parts, riveting devices are often used to rivet the sheet metal parts.

[0003] When performing sheet metal riveting operations, the sheet metal is usually placed on a base, and then the operator manually holds the rivet or uses a handheld tool to clamp the rivet and places it on the sheet metal. The rivet on the sheet metal is aligned with the upper punch, and the rivet is fixed to the sheet metal by pressing down on the upper punch. This is not only difficult to accurately locate the position of the rivet, but also easily causes harm to the workers, which is dangerous. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a riveting device for sheet metal processing. By setting a positioning support structure, it can replace manual hand-held fixation of the rivet body and can accurately install the rivet body on the sheet metal body.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A riveting device for sheet metal processing, which includes a processing table, a transmission frame fixedly mounted on the top of the processing table, a hydraulic cylinder mounted on the transmission frame, a fixed block fixedly mounted on the hydraulic cylinder, a punching head mounted on the bottom of the fixed block, two fixed structures symmetrically arranged below the punching head, a sheet metal body is arranged between the two fixed structures, a positioning support structure is arranged above the sheet metal body, the positioning support structure includes a support frame fixedly mounted on the transmission frame, a support block is arranged inside the support frame, two clamping blocks installed by a first spring are symmetrically arranged inside the support block, a rivet body is installed between the two clamping blocks, two slide grooves are symmetrically provided on the support frame, and sliders slidably connected to the slide grooves are fixedly mounted on both sides of the support block.

[0007] Furthermore, two limiting frames are fixedly installed on the surface of the fixed block, and a limiting rod slidably connected to the limiting frames is fixedly installed on one side of the sliding block.

[0008] Furthermore, the fixing block is symmetrically provided with clamping rods connected by a plurality of second springs, and the punching head is provided with a plurality of clamping slots.

[0009] Furthermore, one end of the clamping rod passes through the fixing block and is connected to the clamping slot, and the inner diameter of the clamping slot is adapted to the diameter of one end of the clamping rod.

[0010] Furthermore, two first fixed frames are symmetrically installed on the surface of the processing table, a screw is movably installed inside the first fixed frame, a motor connected to the screw is fixedly installed at one end of the first fixed frame, a moving block is movably installed on the motor, and a fixing frame is fixedly installed on the moving block.

[0011] Furthermore, the fixing structure includes a second fixing frame connected to the fixing bracket, two clamping plates are symmetrically arranged inside the second fixing frame, and multiple electric telescopic rods connected to the clamping plates are fixedly installed on both sides of the second fixing frame.

[0012] Furthermore, a plurality of moving wheels are fixedly mounted on the bottom of the processing table.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present application can fix the rivet body by setting a positioning support structure instead of manually holding it. At the same time, the support block can also adjust its position by sliding the slider on the slide groove, so that the rivet body can be accurately positioned on the sheet metal body. The hydraulic cylinder drives the punch head to press down to fix the slider on the sheet metal body, which not only enables the rivet body to be accurately positioned and installed on the sheet metal body, but also avoids the manual hand-held fixation method of the rivet body, thereby improving operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the limiting frame and limiting rod of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the support block of the present utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the first fixing frame of the present invention;

[0019] Figure 5 This is a schematic diagram of the clamping rod and clamping slot structure of the present utility model.

[0020] In the figure, 1. processing table; 2. transmission frame; 3. hydraulic cylinder; 4. fixed block; 5. punch head; 6. fixed structure; 7. sheet metal body; 8. positioning support structure; 9. support frame; 10. support block; 11. first spring; 12. clamping block; 13. rivet body; 14. slide groove; 15. slider; 16. limit frame; 17. limit rod; 18. second spring; 19. clamping rod; 20. clamping groove; 21. first fixed frame; 22. screw; 23. motor; 24. moving block; 25. fixed frame; 26. second fixed frame; 27. clamping plate; 28. electric telescopic rod; 29. ​​moving wheel. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-Figure 5 The shown embodiment is a riveting device for sheet metal processing, which includes a processing table 1, a transmission frame 2 is fixedly installed on the top of the processing table 1, a hydraulic cylinder 3 is installed on the transmission frame 2, a fixed block 4 is fixedly installed on the hydraulic cylinder 3, a punch head 5 is installed at the bottom of the fixed block 4, two fixed structures 6 are symmetrically arranged below the punch head 5, a sheet metal body 7 is arranged between the two fixed structures 6, a positioning support structure 8 is arranged above the sheet metal body 7, the positioning support structure 8 includes a support frame 9 fixedly installed on the transmission frame 2, a support block 10 is arranged inside the support frame 9, two clamping blocks 12 installed by a first spring 11 are symmetrically arranged inside the support block 10, a rivet body 13 is installed between the two clamping blocks 12, two slide grooves 14 are symmetrically opened on the support frame 9, and sliders 15 slidably connected to the slide grooves 14 are fixedly installed on both sides of the support block 10. By setting up the positioning support structure 8, the rivet body 13 can be fixed instead of being manually held. At the same time, the support block 10 can also be adjusted in position by sliding the slider 15 on the slide groove 14, so that the rivet body 13 can be accurately positioned on the sheet metal body 7, so that the hydraulic cylinder 3 drives the punch head 5 to press down and fix the slider 15 on the sheet metal body 7.

[0023] In this embodiment, as shown in FIG Figure 1-Figure 5As shown, two limit frames 16 are fixedly installed on the surface of the fixed block 4, and a limit rod 17 slidably connected to the limit frame 16 is fixedly installed on one side of the slider 15; a clamping rod 19 is symmetrically arranged on the fixed block 4 and is installed and connected through a plurality of second springs 18, and a plurality of clamping slots 20 are opened on the punching head 5; one end of the clamping rod 19 passes through the fixed block 4 and is connected to the clamping slot 20, and the inner diameter of the clamping slot 20 is adapted to the diameter of one end of the clamping rod 19. The support block 10 is connected to the fixed block 4 on the hydraulic cylinder 3 through the limit frame 16 and the limit rod 17. When the transmission frame 2 drives the hydraulic cylinder 3, the fixed block 4 and the punching head 5 to move, the support block 10 can move together with the punching head 5 through the limit frame 16 and the limit rod 17, so that the rivet body 13 on the support block 10 is always perpendicular to the punching head 5, and there is no need to manually adjust the position of the rivet body 13, which is convenient for use; at the same time, the limit frame 16 and the limit rod 17 are slidably connected, and will not affect the descending punching of the punching head 5; the punching head 5 and the fixed block 4 are connected and fixed by the engagement of the clamping rod 19 and the clamping groove 20. When one end of the clamping rod 19 is pulled out from the clamping groove 20, the punching head 5 can be disassembled and separated from the fixed block 4, which is convenient for replacing the punching head 5; at the same time, the clamping rod 19 is adapted to the clamping groove 20, which can increase the stability of the engagement and prevent the punching head 5 from shaking.

[0024] In this embodiment, Figure 1-Figure 5 As shown, two first fixed frames 21 are symmetrically installed on the surface of the processing table 1, and a screw 22 is movably installed inside the first fixed frame 21. A motor 23 connected to the screw 22 is fixedly installed at one end of the first fixed frame 21, and a moving block 24 is movably installed on the motor 23, and a fixing frame 25 is fixedly installed on the moving block 24; the fixed structure 6 includes a second fixed frame 26 connected to the fixing frame 25, and two clamping plates 27 are symmetrically arranged inside the second fixed frame 26, and multiple electric telescopic rods 28 connected to the clamping plates 27 are fixedly installed on both sides of the second fixed frame 26; multiple moving wheels 29 are fixedly installed on the bottom of the processing table 1. By starting the motor 23, the screw 22 can be driven to rotate. The rotation of the screw 22 can drive the fixing frame 25 to move through the moving block 24. The movement of the fixing frame 25 can drive the fixing structure 6 to move, so that the fixing structure 6 can adjust the longitudinal position of the sheet metal body 7 to facilitate the riveting process; through the arrangement of the second fixing frame 26, the clamping plate 27 and the electric telescopic rod 28, the transmission of multiple electric telescopic rods 28 is used to enable the multiple clamping plates 27 to clamp and fix the sheet metal body 7, which can improve a certain degree of firmness and prevent the sheet metal body 7 from falling off during the riveting process; the arrangement of the moving wheel 29 facilitates the overall position adjustment of the processing table 1.

[0025] The working process of the sheet metal processing pressure riveting device provided in this embodiment is as follows:

[0026] The rivet body 13 is placed in the support block 10 and supported and fixed by multiple first springs 11 and clamping blocks 12, and then the transmission frame 2 is started to move the punching head 5. During the movement, the support block 10 moves together with the punching head 5 through the limit frame 16 and the limit rod 17, so that the rivet body 13 in the support block 10 is always directly below the punching head 5. After reaching the specified riveting position, the hydraulic cylinder 3 is started to descend so that the punching head 5 presses the rivet body 13 in the support block 10 downward. After being stamped, the rivet body 13 descends and detaches from the support block 10 and is compacted on the sheet metal body 7, completing the riveting operation.

[0027] The above description shows and describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should be within the scope of protection of the claims attached to the present invention.

Claims

1. A riveting device for sheet metal processing, comprising a processing table (1), characterized in that: A transmission frame (2) is fixedly mounted on the top of the processing table (1), a hydraulic cylinder (3) is mounted on the transmission frame (2), a fixed block (4) is fixedly mounted on the hydraulic cylinder (3), a punching head (5) is mounted on the bottom of the fixed block (4), two fixed structures (6) are symmetrically arranged below the punching head (5), and a sheet metal body (7) is arranged between the two fixed structures (6); A positioning support structure (8) is provided above the sheet metal body (7), the positioning support structure (8) comprises a support frame (9) fixedly mounted on the transmission frame (2), a support block (10) is provided inside the support frame (9), two clamping blocks (12) mounted via a first spring (11) are symmetrically provided inside the support block (10), and a rivet body (13) is installed between the two clamping blocks (12); Two sliding grooves (14) are symmetrically provided on the support frame (9), and sliding blocks (15) slidably connected to the sliding grooves (14) are fixedly installed on both sides of the support block (10).

2. The sheet metal processing riveting device according to claim 1, characterized in that: Two limiting frames (16) are fixedly mounted on the surface of the fixed block (4), and a limiting rod (17) slidably connected to the limiting frames (16) is fixedly mounted on one side of the sliding block (15).

3. The sheet metal processing riveting device according to claim 1, characterized in that: The fixing block (4) is symmetrically provided with clamping rods (19) mounted and connected via a plurality of second springs (18), and the punching head (5) is provided with a plurality of clamping slots (20).

4. The sheet metal processing riveting device according to claim 3, characterized in that: One end of the clamping rod (19) passes through the fixing block (4) and is connected to the clamping slot (20), and the inner diameter of the clamping slot (20) is adapted to the diameter of one end of the clamping rod (19).

5. The sheet metal processing riveting device according to claim 1, characterized in that: Two first fixed frames (21) are symmetrically mounted on the surface of the processing table (1), a screw (22) is movably mounted inside the first fixed frame (21), a motor (23) connected to the screw (22) is fixedly mounted at one end of the first fixed frame (21), a moving block (24) is movably mounted on the motor (23), and a fixing frame (25) is fixedly mounted on the moving block (24).

6. The sheet metal processing riveting device according to claim 5, characterized in that: The fixing structure (6) comprises a second fixing frame (26) connected to the fixing frame (25), two clamping plates (27) are symmetrically arranged inside the second fixing frame (26), and a plurality of electric telescopic rods (28) connected to the clamping plates (27) are fixedly mounted on both sides of the second fixing frame (26).

7. The sheet metal processing riveting device according to claim 1, characterized in that: A plurality of moving wheels (29) are fixedly mounted on the bottom of the processing table (1).

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