A compression device with floating plunger

Abstract

The utility model relates to a kind of compression devices with floating plug, include work platform, lower support module for supporting the lower part of workpiece by being installed on work platform, slider that is slidably arranged on work platform by horizontal linear guide and is driven by horizontal cylinder, connecting plate vertically installed in slider;The side of the connecting plate is vertically floatingly installed plug by elastic mechanism, and upper compression mechanism is installed on top portion;The slider moves forward and drives plug to extend into the internal gap between upper and lower portion of workpiece;Upper compression mechanism compresses the upper portion of workpiece.The utility model is simple in structure, low in cost, can compress the upper and lower portion of workpiece while positioning its internal gap, does not affect welding gun welding operation, and facilitates robot automatic welding.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, specifically to a clamping device with a floating plug. Background Technology

[0002] In welding system tooling fixtures, the internal space between the upper and lower stamping plates of the workpiece is narrow. The welding process requires simultaneously clamping the upper and lower stamping plates and ensuring the internal clearance between them. For example, when welding the upper and lower stamping plates of an automotive chassis subframe, the clearance between the stamping plates must be guaranteed. The limited internal space of the upper and lower stamping plates makes it difficult to simultaneously arrange positioning and clamping mechanisms. The inability to guarantee the clearance between the upper and lower stamping plates leads to welding defects, affecting subsequent vehicle assembly and resulting in significant economic losses. Alternatively, if positioning and clamping mechanisms are arranged simultaneously, it occupies space for the welding torch, reducing the weldability of the tooling.

[0003] Therefore, there is an urgent need for a positioning and clamping device that is simple in structure, low in cost, and can effectively position and clamp the gap between the upper and lower parts of the workpiece. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a simple and low-cost clamping device with a floating plug, which can clamp the upper and lower parts of the workpiece while positioning its internal spacing, without affecting the welding torch operation, and facilitates automatic welding by robots.

[0005] The purpose of this utility model is achieved as follows: A clamping device with a floating plug includes a working platform, a lower support module mounted on the working platform for supporting the lower part of the workpiece, a slider slidably disposed on the working platform via a horizontal linear guide and driven by a horizontal cylinder, and a connecting plate vertically mounted on the slider; the side of the connecting plate is vertically floating with a plug via an elastic mechanism, and the top is mounted with a clamping mechanism. The slider moves forward, causing the plug to extend into the internal gap between the upper and lower parts of the workpiece; the upper pressing mechanism presses the upper part of the workpiece.

[0006] Furthermore, the elastic mechanism includes a stopper seat slidably disposed on the side of the connecting plate via a vertical linear guide rail, a guide post vertically fixed on the slider, and a spring fitted on the guide post; the stopper seat is movably fitted on the guide post and is provided with bottom elastic support by the spring; the stopper is fixed at the front end of the stopper seat.

[0007] Furthermore, a limiting device is installed on the top of the guide post, comprising a bolt and a washer screwed onto the top of the guide post to limit the top position of the plug seat.

[0008] Furthermore, the plug includes a lower pressure plate, an intermediate pad, and an upper pressure plate stacked in sequence, with the lower pressure plate and the upper pressure plate being fixedly connected by fastening bolts.

[0009] Furthermore, the lower support module includes a lower support base fixed to the working platform, a lower support block installed on the lower support base for supporting the lower part of the workpiece, and a support pad layer provided between the lower support base and the lower support block.

[0010] Furthermore, the upper clamping mechanism includes a clamping cylinder mounted on the top of the connecting plate, a clamping arm driven by the clamping cylinder to perform a deflection action, and a clamping block disposed on the clamping arm for clamping the upper part of the workpiece.

[0011] Furthermore, the outer end of the clamping arm is provided with a pressure post for clamping the upper pin hole position of the workpiece.

[0012] Furthermore, the work platform is equipped with a pin insertion mechanism, which inserts a positioning pin into the positioning hole at the bottom of the workpiece to fix the relative position of the upper and lower parts of the workpiece.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention features a lower support module and a horizontally movable slider on a working platform. A floating stopper and an upper clamping mechanism are installed on the slider. The stopper is inserted into the gap between the upper and lower parts of the workpiece to ensure the distance between them. The lower support module and the upper clamping mechanism clamp the upper and lower parts of the workpiece, achieving clamping and fixing of the upper and lower parts and control of the distance. This does not affect the welding torch operation, facilitates automatic robotic welding, and has a simple overall structure and low cost. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the working state of a pressing device with a floating plug according to the present invention.

[0015] Figure 2 This is a front view structural diagram of a pressing device with a floating plug according to the present invention.

[0016] Figure 3 This is a left-side structural schematic diagram of a pressing device with a floating plug according to the present invention.

[0017] in: 1. Working platform; 2. Horizontal linear guide; 3. Horizontal cylinder; 4. Slider; 5. Connecting plate; 6. Plug; 7. Upper clamping mechanism; 8. Vertical linear guide; 9. Plug seat; 10. Guide column; 11. Spring; 12. Bolt; 13. Washer; 14. Lower support seat; 15. Lower support block; 16. Support pad layer; 17. Pin insertion mechanism. Lower pressure plate 61, intermediate pad 62, upper pressure plate 63, clamping cylinder 71, clamping arm 72, pressure block 73, pressure column 74. Detailed Implementation

[0018] See Figures 1-3 The present invention relates to a pressing device with a floating plug, comprising a working platform 1, a lower support module installed on the working platform 1 for supporting the lower part of the workpiece, a slider 4 slidably disposed on the working platform 1 via a horizontal linear guide rail 2, and a connecting plate 5 vertically installed on the slider 4. The lower support module includes a lower support seat 14 fixed on the work platform 1 and a lower support block 15 installed on the lower support seat 14 for supporting the lower part of the workpiece. A support pad 16 is provided between the lower support seat 14 and the lower support block 15. The support height of the lower support block 15 can be changed by adjusting the thickness of the support pad 16 to adapt to the lower part of workpieces of different sizes. A horizontal cylinder 3 is hinged between the working platform 1 and the slider 4; the side of the connecting plate 5 is vertically floating with a stopper 6 via an elastic mechanism, and a pressing mechanism 7 is installed on the top; the horizontal cylinder 3 drives the slider 4 to move forward, causing the stopper 6 to extend into the internal gap between the upper and lower parts of the workpiece. The elastic mechanism includes a stopper seat 9 slidably disposed on the side of the connecting plate 5 via a vertical linear guide rail 8, a guide post 10 vertically fixed on the slider 4, and a spring 11 fitted on the guide post 10; the stopper seat 9 is movably fitted on the guide post 10 and is provided with bottom elastic support by the spring 11; the stopper 6 is fixedly installed on the front end of the stopper seat 9; a limiting device is installed on the top of the guide post 10, including a bolt 12 and a washer 13 screwed onto the top of the guide post 10, which limits the top position of the stopper seat 9; the upper limit position of the stopper seat 9 can be adjusted by adjusting the thickness of the washer 13, so that the stopper 6 can achieve the height adjustment function, thereby adapting to the inner groove of workpieces of different sizes and facilitating the entry of the stopper 6; The plug 6 includes a lower pressure plate 61, an intermediate pad 62 and an upper pressure plate 63 stacked in sequence. The lower pressure plate 61 and the upper pressure plate 63 are fixedly connected by fastening bolts. By changing the thickness of the intermediate pad 62, the overall height of the plug 6 can be adjusted to accommodate workpieces with different internal space dimensions. The upper pressing mechanism 7 includes a pressing cylinder 71 installed on the top of the connecting plate 5, a pressing arm 72 driven by the pressing cylinder 71 to perform a deflection action, and a pressing block 73 and a pressing column 74 arranged sequentially on the pressing arm 72 for pressing the upper part of the workpiece; the pressing column 74 is located at the outer end of the pressing arm 72; a pin insertion mechanism 17 is installed on the working platform 1, and the pin insertion mechanism 17 inserts a positioning pin into the positioning hole at the lower part of the workpiece, and cooperates with the pressing column 74 to press and position the relative position of the upper and lower parts of the workpiece. During operation, first adjust the support height of the lower support block 15 according to the lower part size of the workpiece, and then place the lower part of the workpiece on the support block 15; adjust the shim 13 degrees so that the bottom of the lower pressure plate 61 of the plug block 6 is slightly higher than the lower part of the workpiece, generally 2~3 mm, so that the plug block 6 can slide smoothly to the upper part of the lower part of the workpiece; the horizontal cylinder 3 pushes the slider 4 to move horizontally, driving the plug block 6 to move horizontally to the upper part of the lower part of the workpiece; place the upper part of the workpiece, align the positioning holes, start the clamping cylinder 71, the clamping arm 72 drives the pressure block 73 and the pressure column 74 to clamp the upper part of the workpiece, and the pin insertion mechanism 17 inserts the positioning pin into the positioning hole of the lower part of the workpiece, where the pressure column 74 provides upper clamping support for the positioning pin, and the pressure block 73 presses down on the upper part of the workpiece. At this time, the top of the plug block 6 is subjected to the downward pressure of the upper part of the workpiece, which in turn compresses the spring 11 until the bottom of the plug block 6 abuts against the lower part of the workpiece, thereby supporting the gap between the upper and lower parts of the workpiece and ensuring that the positioning dimension of the gap between the upper and lower parts of the workpiece is consistent with the dimension of the plug block 6.

[0019] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A clamping device with a floating plug, characterized in that: It includes a work platform (1), a lower support module installed on the work platform (1) to support the lower part of the workpiece, a slider (4) slidably set on the work platform (1) by means of a horizontal linear guide rail (2) and driven by a horizontal cylinder (3), and a connecting plate (5) vertically installed on the slider (4); the side of the connecting plate (5) is vertically floatingly mounted with a plug (6) through an elastic mechanism, and the top is mounted with a pressing mechanism (7). The slider (4) moves forward, causing the plug (6) to extend into the internal gap between the upper and lower parts of the workpiece; the upper pressing mechanism (7) presses the upper part of the workpiece.

2. The clamping device with floating plug according to claim 1, characterized in that: The elastic mechanism includes a stopper seat (9) slidably disposed on the side of the connecting plate (5) via a vertical linear guide rail (8), a guide post (10) vertically fixed on the slider (4), and a spring (11) fitted on the guide post (10); the stopper seat (9) is movably fitted on the guide post (10) and is provided with bottom elastic support by the spring (11); the stopper (6) is fixed on the front end of the stopper seat (9).

3. The clamping device with floating plug according to claim 2, characterized in that: A limiting device is installed on the top of the guide post (10), comprising a bolt (12) and a washer (13) screwed onto the top of the guide post (10) to limit the top position of the plug seat (9).

4. The clamping device with floating plug according to claim 1, characterized in that: The plug (6) includes a lower pressure plate (61), a middle pad (62) and an upper pressure plate (63) stacked in sequence, and the lower pressure plate (61) and the upper pressure plate (63) are fixedly connected by fastening bolts.

5. The clamping device with floating plug according to claim 1, characterized in that: The lower support module includes a lower support seat (14) fixed on the working platform (1), a lower support block (15) installed on the lower support seat (14) for supporting the lower part of the workpiece, and a support pad layer (16) provided between the lower support seat (14) and the lower support block (15).

6. The clamping device with floating plug according to claim 1, characterized in that: The upper pressing mechanism (7) includes a pressing cylinder (71) installed on the top of the connecting plate (5), a pressing arm (72) driven by the pressing cylinder (71) to perform a deflection action, and a pressing block (73) set on the pressing arm (72) for pressing the upper part of the workpiece.

7. The clamping device with floating plug according to claim 6, characterized in that: The outer end of the clamping arm (72) is provided with a clamping column (74) for clamping the upper pin hole position of the workpiece.

8. The clamping device with floating plug according to claim 1, characterized in that: The work platform (1) is equipped with a pin insertion mechanism (17) to insert a positioning pin into the positioning hole at the bottom of the workpiece to fix the relative position of the upper and lower parts of the workpiece.

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