Cylinder workpiece clamping structure of welding machine

Abstract

The utility model discloses a welding machine cylinder body workpiece clamping structure which comprises a base, a vertical frame fixedly installed on the base and a transverse machine frame fixedly installed on the left side of the vertical frame, welding equipment is movably installed on the transverse machine frame, and a welding gun is arranged on the bottom side of the welding equipment. Through rotation of the protruding part of the cam, the inner wall of the bottom of a barrel workpiece can be conveniently and rapidly clamped between the protruding part of the cam and the inner wall of the bottom side of the arc-shaped supporting groove, and therefore clamping and fixing of the whole barrel workpiece are achieved. The situation that in the prior art, due to the fact that two clamps are adopted to be close to each other from the two sides or the two clamps are adopted to be far away from each other from the inner side to fix the barrel workpiece, the barrel workpiece is prone to being extruded inwards or stretched outwards to deform in the clamping process is avoided, and it is guaranteed that the barrel workpiece is normally welded in the follow-up process; and the welding quality is ensured, the structure is simple, and clamping and positioning are convenient during welding.

Description

Technical Field

[0001] The utility model relates to the field of welding clamping structures, in particular to a welding machine barrel workpiece clamping structure. Background Art

[0002] As is known to all, the cylindrical workpiece clamping structure of a welding machine is generally a device for fixing and supporting the cylindrical workpiece, which can help fix the cylindrical workpiece relatively stably on the welding table for subsequent welding operations.

[0003] However, in the current clamping technology, the cylindrical workpiece is mainly clamped and fixed by two clamps approaching each other from both sides or by two clamps moving away from each other from the inside. However, the above clamping structure is easy to cause the cylindrical workpiece to be squeezed inward or stretched outward during the process of fixing the cylindrical workpiece, which affects the subsequent normal welding and makes it difficult to ensure the welding quality. Therefore, the utility model designs a cylindrical workpiece clamping structure for a welding machine. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a welding machine barrel workpiece clamping structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A welding machine barrel workpiece clamping structure comprises a base, a vertical frame fixedly mounted on the base, and a horizontal frame fixedly mounted on the left side of the vertical frame, a welding device is movably mounted on the horizontal frame, and a welding gun is arranged on the bottom side of the welding device; a horizontal support is movably mounted on the left middle part of the vertical frame, a first electric cylinder is fixedly mounted on the top of the horizontal support, an output end of the first electric cylinder movably penetrates to the bottom of the horizontal support and is fixedly connected to an L-shaped bracket, an arc-shaped support groove for supporting the barrel workpiece is arranged on the bottom inner wall of the L-shaped bracket, and the left end of the horizontal support also penetrates into the barrel workpiece;

[0007] A transverse fixing frame is fixedly installed on the upper part of the right inner wall of the L-shaped bracket, and a transversely arranged rotating shaft is rotatably installed in the L-shaped bracket below the transverse fixing frame. A rotating motor is fixedly installed on the right outer side of the L-shaped bracket, and the output end of the rotating motor is fixedly connected to the right end of the rotating shaft; a lifting plate is movably provided below the transverse fixing frame, and lifting rods are fixedly connected to both ends of the top of the lifting plate, and the top end of the lifting rod movably passes through the top of the transverse fixing frame, and a plurality of return springs are fixedly connected between the lifting plate and the bottom of the transverse fixing frame; a plurality of cams are fixedly sleeved on the left end of the rotating shaft, and the cams are in rolling contact with the bottom side of the lifting plate.

[0008] Furthermore, a vertical groove is provided on the left side of the vertical frame, in which a second electric cylinder is fixedly installed, and an output end of the second electric cylinder is fixedly connected to an L-shaped lifting frame; a third electric cylinder is fixedly installed on the bottom inner wall of the L-shaped lifting frame, and an output end of the third electric cylinder is fixedly connected to a rack, a gear is meshed on the rack, and the right end of the horizontal pillar rotates to penetrate into the inner side of the L-shaped lifting frame and is fixedly connected to the gear.

[0009] Furthermore, a mounting hole is provided on the left inner wall of the L-shaped lifting frame, a bearing is fixedly installed in the mounting hole, and the rotating shaft is rotatably installed on the bearing.

[0010] Furthermore, a guide slide block is fixedly provided at the right bottom of the L-shaped lifting frame, a guide slide groove is provided on the right inner wall of the vertical groove, and the guide slide block is slidably installed in the guide slide groove along the vertical direction.

[0011] Furthermore, a buffer support pad is provided on the bottom inner wall of the arc-shaped support groove; a guide sleeve is fixedly installed on the transverse fixing frame, and the lifting rod slides in the vertical direction and passes through the guide sleeve.

[0012] Furthermore, a controller is also provided on the stand, and the controller is electrically controlled and connected to the rotating motor, the welding equipment, the first electric cylinder, the second electric cylinder, and the third electric cylinder respectively.

[0013] By adopting the above structure, the utility model has the following beneficial effects:

[0014] The utility model provides a welding machine barrel workpiece clamping structure, which can conveniently and quickly clamp the bottom inner wall of the barrel workpiece between the cam protrusion and the bottom inner wall of the arc-shaped support groove through the rotation of the cam protrusion, thereby realizing the clamping and fixing of the entire barrel workpiece, avoiding the prior art of fixing the barrel workpiece by using two clamps approaching each other from both sides or using two clamps moving away from each other from the inside, which may easily cause the barrel workpiece to be squeezed inwardly or stretched outwardly during the clamping process, which is beneficial to ensuring the subsequent normal welding of the barrel workpiece and ensuring the welding quality, and the structure is simple and convenient for clamping and positioning during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a welding machine barrel workpiece clamping structure proposed by the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 for Figure 2 The structural diagram of the enlarged part A in the middle;

[0018] Figure 4 It is a schematic diagram of the structure between the rotating shaft and the cam in the utility model.

[0019] In the figure: 1. base; 2. stand; 201. vertical slot; 3. horizontal rack; 4. welding equipment; 401. welding gun; 5. horizontal pillar; 6. first electric cylinder; 7. L-shaped bracket; 700. arc-shaped support slot; 701. horizontal fixing frame; 702. rotating motor; 703. rotating shaft; 704. cam; 705. lifting plate; 706. reset spring; 707. lifting rod; 708. guide sleeve; 8. barrel workpiece; 9. second electric cylinder; 10. L-shaped lifting frame; 11. third electric cylinder; 12. rack; 13. gear; 14. controller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A welding machine barrel workpiece clamping structure comprises a base 1, a stand 2 fixedly mounted on the base 1, and a transverse frame 3 fixedly mounted on the left side of the stand 2, a welding device 4 is movably mounted on the transverse frame 3, and a welding gun 401 is arranged on the bottom side of the welding device 4; a transverse support 5 is movably mounted on the left middle part of the stand 2, a first electric cylinder 6 is fixedly mounted on the top of the transverse support 5, an output end of the first electric cylinder 6 movably penetrates to the bottom of the transverse support 5 and is fixedly connected to an L-shaped bracket 7, an arc-shaped support groove 700 for supporting a barrel workpiece 8 is arranged on the inner wall of the bottom side of the L-shaped bracket 7, and the left end of the transverse support 5 also penetrates into the barrel workpiece 8;

[0022] A transverse fixing frame 701 is fixedly installed on the upper part of the right inner wall of the L-shaped bracket 7, and a transversely arranged rotating shaft 703 is rotatably installed in the L-shaped bracket 7 below the transverse fixing frame 701. A rotating motor 702 is fixedly installed on the right outer side of the L-shaped bracket 7, and the output end of the rotating motor 702 is fixedly connected to the right end of the rotating shaft 703; a lifting plate 705 is movably provided below the transverse fixing frame 701, and lifting rods 707 are fixedly connected to the top ends of the lifting plate 705, and the top end of the lifting rod 707 movably passes through the top of the transverse fixing frame 701, and a plurality of return springs 706 are fixedly connected between the lifting plate 705 and the bottom of the transverse fixing frame 701; a plurality of cams 704 are fixedly sleeved on the left end of the rotating shaft 703, and the cams 704 are in rolling contact with the bottom side of the lifting plate 705.

[0023] In this embodiment, a vertical groove 201 is provided on the left side of the vertical frame 2, and a second electric cylinder 9 is fixedly installed in the vertical groove 201, and the output end of the second electric cylinder 9 is fixedly connected to an L-shaped lifting frame 10; a third electric cylinder 11 is fixedly installed on the bottom inner wall of the L-shaped lifting frame 10, and the output end of the third electric cylinder 11 is fixedly connected to a rack 12, and a gear 13 is meshed on the rack 12, and the right end of the transverse support 5 rotates to penetrate the inner side of the L-shaped lifting frame 10 and is fixedly connected to the gear 13; a mounting hole is provided on the left inner wall of the L-shaped lifting frame 10, a bearing is fixedly installed in the mounting hole, and the rotating shaft 703 is rotatably installed on the bearing; a guide slider is fixedly provided on the right bottom of the L-shaped lifting frame 10, a guide slide groove is provided on the right inner wall of the vertical groove 201, and the guide slider is slidably installed in the guide slide groove along the vertical direction.

[0024] In this embodiment, a buffer support pad is provided on the bottom inner wall of the arc-shaped support groove 700; a guide sleeve 708 is fixedly installed on the horizontal fixed frame 701, and the lifting rod 707 slides in the vertical direction and passes through the guide sleeve 708; a controller 14 is also provided on the vertical frame 2, and the controller 14 is electrically controlled and connected with the rotating motor 702, the welding equipment 4, the first electric cylinder 6, the second electric cylinder 9, and the third electric cylinder 11 respectively.

[0025] In the welding machine barrel workpiece clamping structure, before welding, the protruding part of the cam 704 is set in an upward position; when the barrel workpiece needs to be clamped and fixed during welding, the bottom of the welded barrel workpiece 8 is first placed in the arc-shaped support groove 700 on the L-shaped bracket 7, and then the rotating motor 702 is driven to rotate the rotating shaft 703 and the cam 704. When the protruding part of the cam 704 rotates from top to bottom, the bottom inner wall of the barrel workpiece 8 can be pressed down by the protruding part of the cam 704, and then the bottom inner wall of the barrel workpiece 8 can be pressed down and clamped between the protruding part of the cam 704 and the bottom inner wall of the arc-shaped support groove 700 (such as Figure 2 , Figure 3 ), and at the same time, under the elastic resetting action of the reset spring 706, the lifting plate 705 and the lifting rod 707 move downward, so that the entire cylindrical workpiece 8 can be quickly fixed, and then the L-shaped bracket 7 and the fixed cylindrical workpiece 8 can be driven to move upward or downward by the extension and contraction of the output end of the first electric cylinder 6, until the position of the cylindrical workpiece 8 is adjusted based on the transverse support 5 as the center position, and then the second electric cylinder 9 is used to push the L-shaped lifting frame 10, the transverse support 5 and the cylindrical workpiece 8 to move up to the bottom side of the welding gun 401, and then the welding equipment 4 and the welding gun 401 are used to work for welding. In addition, the rack 12 is driven up and down by the third electric cylinder 11 and meshed with the gear 13 for transmission, which can drive the transverse support 5 and the cylindrical workpiece 8 to rotate, so that the welding position of the cylindrical workpiece 8 can be adjusted according to actual needs.

[0026] Finally, in the utility model, through the rotation of the protruding part of the cam 704, the bottom inner wall of the cylindrical workpiece 8 can be quickly clamped between the protruding part of the cam 704 and the bottom inner wall of the arc-shaped support groove 700, thereby achieving the clamping and fixation of the entire cylindrical workpiece 8, avoiding the prior art of fixing the cylindrical workpiece by using two clamps approaching each other from both sides or using two clamps moving away from each other from the inside, which may easily cause the cylindrical workpiece itself to be squeezed inward or stretched outward during the clamping process. This is conducive to ensuring the subsequent normal welding of the cylindrical workpiece and ensuring the welding quality. It has a simple structure and is easy to use for clamping and positioning during welding.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding machine barrel workpiece clamping structure, comprising a base (1), a stand (2) fixedly mounted on the base (1), and a transverse frame (3) fixedly mounted on the left side of the stand (2), a welding device (4) being movably mounted on the transverse frame (3), and a welding gun (401) being arranged on the bottom side of the welding device (4); characterized in that: A transverse support (5) is movably mounted in the middle of the left side of the vertical frame (2); a first electric cylinder (6) is fixedly mounted on the top of the transverse support (5); an output end of the first electric cylinder (6) movably penetrates below the transverse support (5) and is fixedly connected to an L-shaped bracket (7); an arc-shaped support groove (700) for supporting a barrel workpiece (8) is provided on the inner wall of the bottom side of the L-shaped bracket (7); and the left end of the transverse support (5) also penetrates into the barrel workpiece (8); A transverse fixing frame (701) is fixedly installed on the upper part of the right inner wall of the L-shaped bracket (7), a transversely arranged rotating shaft (703) is rotatably installed in the L-shaped bracket (7) below the transverse fixing frame (701), a rotating motor (702) is fixedly installed on the right outer side of the L-shaped bracket (7), and the output end of the rotating motor (702) is fixedly connected to the right end of the rotating shaft (703); a lifting plate (705) is movably provided below the transverse fixing frame (701), and both ends of the top of the lifting plate (705) are fixedly connected to lifting rods (707), and the top end of the lifting rod (707) movably penetrates to the top of the transverse fixing frame (701), and a plurality of return springs (706) are fixedly connected between the lifting plate (705) and the bottom of the transverse fixing frame (701); a plurality of cams (704) are fixedly sleeved on the left end of the rotating shaft (703), and the cams (704) are in rolling contact with the bottom side of the lifting plate (705).

2. A welding machine barrel workpiece clamping structure according to claim 1, characterized in that: A vertical groove (201) is provided on the left side of the vertical frame (2), a second electric cylinder (9) is fixedly installed in the vertical groove (201), and the output end of the second electric cylinder (9) is fixedly connected to the L-shaped lifting frame (10); a third electric cylinder (11) is fixedly installed on the bottom inner wall of the L-shaped lifting frame (10), and the output end of the third electric cylinder (11) is fixedly connected to a rack (12), and a gear (13) is meshed on the rack (12), and the right end of the transverse support (5) rotates to penetrate the inner side of the L-shaped lifting frame (10) and is fixedly connected to the gear (13).

3. A welding machine barrel workpiece clamping structure according to claim 2, characterized in that: A mounting hole is provided on the left inner wall of the L-shaped lifting frame (10), a bearing is fixedly installed in the mounting hole, and the rotating shaft (703) is rotatably installed on the bearing.

4. A welding machine barrel workpiece clamping structure according to claim 2, characterized in that: A guide slide block is fixedly arranged at the right bottom of the L-shaped lifting frame (10), a guide slide block is arranged on the right inner wall of the vertical groove (201), and the guide slide block is slidably installed in the guide slide block along the vertical direction.

5. The welding machine barrel workpiece clamping structure according to claim 1, characterized in that: The bottom inner wall of the arc-shaped support groove (700) is provided with a buffer support pad; a guide sleeve (708) is fixedly installed on the transverse fixing frame (701), and the lifting rod (707) slides in the vertical direction and passes through the guide sleeve (708).

6. A welding machine barrel workpiece clamping structure according to claim 1, characterized in that: The stand (2) is also provided with a controller (14), which is respectively electrically controlled and connected to the rotating motor (702), the welding equipment (4), the first electric cylinder (6), the second electric cylinder (9), and the third electric cylinder (11).

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