Sheet metal part welding positioning and clamping device

Abstract

The utility model discloses a sheet metal part welding positioning and clamping device, the utility model relates to sheet metal part welding technical field, including the bottom plate, the upper surface of bottom plate is provided with two symmetrical distribution's lifting spare, the placement board is located the top of lifting spare for placing sheet metal part, the support spare, the support spare sets up in the upper surface edge of bottom plate, clamping piece, clamping piece is the clamping mechanism on the placement board. This sheet metal part welding positioning and clamping device, through the hydraulic cylinder and guide pulley cooperation in lifting spare, can stably adjust the height of placement board, simultaneously, multiple support spare distribution is on the upper surface edge of bottom plate, and through the micro motor drive screw rod makes the movable rod of pressure block compression telescopic rod, realizes the firm support of placement board, this kind of multi -point support and effective limiting mode, can ensure that placement board keeps stable in the welding process, improves the welding quality.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal welding technology, specifically a sheet metal welding positioning and clamping device. Background Technology

[0002] China's automobile manufacturing industry is developing rapidly and is gradually becoming one of the country's pillar industries. Among the automobile body parts, there are a variety of sheet metal parts. These parts need to be welded during processing, and welding positioning and clamping devices are needed during the welding process.

[0003] The utility model patent with authorization announcement number CN216462579U discloses a positioning and clamping device for welding automotive sheet metal parts, including a worktable. Telescopic columns are fixedly installed at the four corners of the lower surface of the worktable. The bottom end of the telescopic columns is connected to the upper surface of the support plate fixedly installed on the left and right sides of the base plate. A height adjustment mechanism is provided between the worktable and the base plate to facilitate the adjustment of the working height of the worktable. A positioning and clamping mechanism for positioning and clamping automotive sheet metal parts is connected to the worktable. A pressure sensor is fixedly connected to the force-bearing surface of the clamping plate located below. A moving block that is slidably connected to the worktable is provided at the bottom of the bracket on the right side.

[0004] As shown in the above utility model, existing positioning and clamping devices for sheet metal welding can adjust the working height and the clamping force according to the thickness of the workpiece. However, although existing devices are equipped with telescopic columns and height adjustment mechanisms to adjust the worktable height, the telescopic columns are only fixed at the four corners of the lower surface of the worktable. For welding larger sheet metal parts, this may not provide sufficiently stable support, especially since vibrations generated during welding may cause the worktable to wobble, affecting welding accuracy. Moreover, existing devices include structures such as pressure sensors and moving blocks, increasing the complexity of the device. Pressure sensors require regular calibration and maintenance, and the sliding connection between the moving block and the worktable is prone to failure. Once a problem occurs, the repair cost and difficulty are high. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sheet metal welding positioning and clamping device, which solves the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sheet metal welding positioning and clamping device, comprising: The base plate has two symmetrically distributed lifting members on its upper surface for adjusting the height of the clamping mechanism. A placement plate is located on top of the lifting member and is used to place sheet metal parts. The placement plate is also equipped with a clamping mechanism for clamping the sheet metal parts. Support members are provided on the upper surface edge of the base plate, and multiple support members are provided. The tops of the multiple support members are connected to the placement plate to support the placement plate. Clamping components, which are clamping mechanisms on the placement plate, are provided in multiples and are arranged in a circular array. The multiple clamping components work together to clamp and position the sheet metal parts.

[0007] Preferably, the lifting component includes a bottom fixing block fixed to the base plate, a mounting block movably connected to the middle of the bottom fixing block via a connecting shaft, a hydraulic cylinder mounted on the mounting block, a protrusion connected to the output end of the hydraulic cylinder, a guide wheel provided in a slot in the middle of the protrusion, a connecting shaft passing through the middle of the guide wheel, and top fixing blocks fixed to the lower surface of the placement plate on both sides of the protrusion. The two ends of the connecting shaft pass through the protrusion and are inserted into the connecting slots in the top fixing blocks, and the connecting shaft is movably connected to the top fixing blocks via bearings.

[0008] Preferably, a plurality of extension plates arranged in a circular array are fixed around the periphery of the placement plate, and the clamping member is mounted on the extension plates.

[0009] Preferably, the support includes a telescopic rod fixed to the base plate, a groove is provided on one side of the opening of the fixing sleeve of the telescopic rod, a screw groove is provided at the bottom of the groove, a guide block is fixed on one side of the upper end of the fixing sleeve of the telescopic rod, and one end of the screw groove extends to the end of the guide block.

[0010] Preferably, a mounting plate is provided on the outer side of the guide block. The mounting plate is configured as a horizontal U-shaped structure. Dovetail sliders are fixed on the inner walls of both ends of the mounting plate. The dovetail sliders correspond to the dovetail grooves opened on both sides of the guide block. A motor is fixed on the outer side of the middle part of the mounting plate. A screw is fixed on the output shaft of the motor. One end of the screw passes through the screw groove and is movably connected to a pressure block through a bearing. The pressure block is located in the groove and corresponds to the movable rod of the telescopic rod.

[0011] Preferably, the clamping member includes a mounting bracket fixed to the upper surface of the extension plate, a telescopic cylinder is mounted on the mounting bracket, and the output shaft of the telescopic cylinder is fixed to the clamping plate. Beneficial effects

[0012] This utility model provides a sheet metal welding positioning and clamping device. Compared with the prior art, it has the following advantages: 1. This sheet metal welding positioning and clamping device, through the cooperation of the hydraulic cylinder and guide wheel in the lifting component, can smoothly adjust the height of the placement plate. At the same time, multiple support components are distributed on the upper edge of the base plate, and the screw driven by the micro motor makes the pressure block press against the movable rod of the telescopic rod, thus achieving stable support for the placement plate. This multi-point support and effective limiting method can ensure that the placement plate remains stable during the welding process and improve the welding quality.

[0013] 2. This sheet metal welding positioning and clamping device has an extension plate on the periphery of the placement plate for installing clamping components. This avoids the installation of clamping components affecting the placement space of the sheet metal parts on the placement plate, making the placement of sheet metal parts more convenient. Moreover, the operation of multiple telescopic cylinders controlling the movement of the clamping plate for clamping and positioning is simple and direct, easy for workers to master and use, and improves work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the lifting component structure of this utility model; Figure 3 This is a schematic diagram of the support structure of this utility model; Figure 4 This is a schematic diagram of the clamping component structure of this utility model.

[0015] In the diagram: base plate 1, lifting component 2, bottom fixing block 21, mounting block 22, hydraulic cylinder 23, protrusion 24, guide wheel 25, connecting shaft 26, top fixing block 27, placement plate 3, extension plate 31, support component 4, telescopic rod 41, groove 42, screw groove 43, guide block 44, mounting plate 45, dovetail slider 46, micro motor 47, pressure block 48, screw 49, clamping component 5, mounting bracket 51, telescopic cylinder 52, clamping plate 53. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 The present invention provides the following technical solution: A sheet metal welding positioning and clamping device includes a base plate 1, lifting members 2, a placement plate 3, a support member 4, and a clamping member 5. Two symmetrically distributed lifting members 2 are provided on the upper surface of the base plate 1 for adjusting the height of the clamping mechanism. Each lifting member 2 includes a bottom fixing block 21 fixed to the base plate 1. A mounting block 22 is movably connected to the center of the bottom fixing block 21 via a connecting shaft 26. A hydraulic cylinder 23 is mounted on the mounting block 22. A protrusion 24 is connected to the output end of the hydraulic cylinder 23. A guide wheel 25 is provided in a groove in the center of the protrusion 24, and the inner wall of the groove is ferruled by ball bearings. Connected to the guide wheel 25, it provides support for the guide wheel 25. A connecting shaft 26 passes through the middle of the guide wheel 25. The guide wheel 25 contacts the lower surface of the placement plate 3. While providing support, it does not affect the rotation of the protrusion 24, reducing the supporting pressure on the connecting shaft 26 and preventing the connecting shaft 26 from breaking easily. Both sides of the protrusion 24 are provided with top fixing blocks 27 fixed to the lower surface of the placement plate 3. Both ends of the connecting shaft 26 pass through the protrusion 24 and are inserted into the connecting grooves opened on the top fixing blocks 27. The connecting shaft 26 is movably connected to the top fixing blocks 27 through bearings.

[0018] Specifically, the placement plate 3 is located on top of the lifting member 2 and is used to place sheet metal parts. At the same time, the placement plate 3 is equipped with a clamping mechanism for clamping the sheet metal parts. Multiple extension plates 31 arranged in a circular array are fixed around the periphery of the placement plate 3. The clamping member 5 is installed on the extension plate 31. The setting of the extension plate 31 ensures that the installation of the clamping member 5 will not affect the placement space of the sheet metal parts on the placement plate 3.

[0019] More specifically, the support member 4 is disposed on the upper surface edge of the base plate 1, and multiple support members 4 are provided. The tops of the multiple support members 4 are connected to the placement plate 3 to support the placement plate 3. The support member 4 includes a telescopic rod 41 fixed on the base plate 1. A groove 42 is provided on one side of the opening of the fixing sleeve of the telescopic rod 41. A screw groove 43 is provided at the bottom of the groove 42. A guide block 44 is fixed on one side of the upper end of the fixing sleeve of the telescopic rod 41. One end of the screw groove 43 extends to the end of the guide block 44. A mounting plate 45 is provided on the outer side of the guide block 44. The mounting plate 45 is configured as a horizontal U-shaped structure. Dovetail sliders 46 are fixed on the inner walls of both ends of the mounting plate 45. The dovetail sliders 46 and the guide block are connected to each other. The dovetail grooves on both sides of the mounting plate 44 correspond to each other and serve as guides, enabling the mounting plate 45 to maintain horizontal linear movement. A micro motor 47 is fixed to the outer side of the middle of the mounting plate 45. A screw 49 is fixed to the output shaft of the micro motor 47. One end of the screw 49 passes through the screw groove 43 and is movably connected to a pressure block 48 through a bearing. The pressure block 48 is located in the groove 42 and corresponds to the movable rod of the telescopic rod 41. When the micro motor 47 is working, it can drive the screw 49 to rotate and move in the screw groove 43, so that the screw 49 drives the pressure block 48 to press against the movable rod of the telescopic rod 41, limiting the telescopic rod 41, thereby enabling the telescopic rod 41 to support the placement plate 3.

[0020] More specifically, the clamping member 5 is the clamping mechanism on the placement plate 3. Multiple clamping members 5 are provided and distributed in a circular array. The multiple clamping members 5 cooperate to clamp and position the sheet metal part. The clamping member 5 includes a mounting bracket 51 fixed on the upper surface of the extension plate 31. A telescopic cylinder 52 is installed on the mounting bracket 51. The output shaft of the telescopic cylinder 52 is fixed to a clamping plate 53. The multiple clamping plates 53 cooperate to clamp and limit the sheet metal part.

[0021] When this device is in operation, the sheet metal part is first placed on the placement plate 3. Then, multiple telescopic cylinders 52 are activated, which move the clamping plates 53 on them until the clamping plates 53 cooperate to clamp and limit the sheet metal part. Then, the required welding height of the sheet metal part is adjusted as needed. At this time, the hydraulic cylinder 23 is activated. When the hydraulic cylinder 23 extends, it moves the placement plate 3 upward until the placement plate 3 moves to the corresponding height. During this process, the telescopic rod 41 extends as the placement plate 3 rises. When the placement plate 3 stops moving... At this time, the micro motor 47 is activated, which drives the screw 49 to rotate. The screw 49 and the screw groove 43 cooperate to drive the micro motor 47 to move, which in turn drives the mounting plate 45 to move on the guide block 44. This causes the screw 49 to drive the pressure block 48 to move in the groove 42 until the pressure block 48 contacts the movable rod of the telescopic rod 41, pressing the movable rod and playing a damping and limiting role. This limits the telescopic rod 41, so that the telescopic rod 41 supports the placement plate 3 and ensures the stability of the placement plate 3 during welding.

[0022] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sheet metal welding positioning and clamping device, characterized in that, include: The base plate has two symmetrically distributed lifting members on its upper surface for adjusting the height of the clamping mechanism. A placement plate is located on top of the lifting member and is used to place sheet metal parts. The placement plate is also equipped with a clamping mechanism for clamping the sheet metal parts. Support members are provided on the upper surface edge of the base plate, and multiple support members are provided. The tops of the multiple support members are connected to the placement plate to support the placement plate. Clamping components, which are clamping mechanisms on the placement plate, are provided in multiples and are arranged in a circular array. The multiple clamping components work together to clamp and position the sheet metal parts.

2. The sheet metal welding positioning and clamping device according to claim 1, characterized in that: The lifting component includes a bottom fixing block fixed to the base plate. A mounting block is movably connected to the middle of the bottom fixing block via a connecting shaft. A hydraulic cylinder is mounted on the mounting block. A protrusion is connected to the output end of the hydraulic cylinder. A guide wheel is provided in the slot in the middle of the protrusion. A connecting shaft passes through the middle of the guide wheel. Top fixing blocks are provided on both sides of the protrusion and fixed to the lower surface of the placement plate. Both ends of the connecting shaft pass through the protrusion and are inserted into the connecting slots in the top fixing blocks. The connecting shaft is movably connected to the top fixing blocks via bearings.

3. The sheet metal welding positioning and clamping device according to claim 1, characterized in that: The placement plate has multiple extension plates arranged in a ring array fixed around its periphery, and the clamping member is mounted on the extension plates.

4. The sheet metal welding positioning and clamping device according to claim 1, characterized in that: The support includes a telescopic rod fixed to the base plate. A groove is provided on one side of the opening of the fixing sleeve of the telescopic rod. A threaded groove is provided at the bottom of the groove. A guide block is fixed on one side of the upper end of the fixing sleeve of the telescopic rod. One end of the threaded groove extends to the end of the guide block.

5. The sheet metal welding positioning and clamping device according to claim 4, characterized in that: An installation plate is provided on the outer side of the guide block. The installation plate is configured as a horizontal U-shaped structure. Dovetail sliders are fixed on the inner walls of both ends of the installation plate. The dovetail sliders correspond to the dovetail grooves opened on both sides of the guide block. A motor is fixed on the outer side of the middle part of the installation plate. A screw is fixed on the output shaft of the motor. One end of the screw passes through the screw groove and is movably connected to a pressure block through a bearing. The pressure block is located in the groove and corresponds to the movable rod of the telescopic rod.

6. The sheet metal welding positioning and clamping device according to claim 1, characterized in that: The clamping member includes a mounting bracket fixed to the upper surface of the extension plate, on which a telescopic cylinder is mounted, and the output shaft of the telescopic cylinder is fixed to the clamping plate.

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