Clamp for matched welding of metal plate and tubular part

Abstract

The utility model belongs to the technical field of clamp manufacturing, and particularly relates to a clamp for matched welding of a metal plate and a tubular part, which comprises a base, a plurality of first clamping hands are sequentially arranged on the base from left to right, and a row of second clamping hands and a row of third clamping hands are respectively arranged on the front side and the rear side of a queue formed by the first clamping hands on the base; a connecting line segment between a second clamping finger A and a second clamping finger B which are used for clamping on the second clamping hand and matched with each other is perpendicular to a queue formed by the first clamping hand, and a connecting line segment between a third clamping finger A and a third clamping finger B which are used for clamping on the third clamping hand and matched with each other is perpendicular to a pair formed by the first clamping hand. A connecting line section between a first clamping finger A and a first clamping finger B which are matched with each other and are used for executing the clamping action on the first clamping hand is parallel to a pair shape formed by the first clamping hand; the problem that a clamp for fixing a sheet metal part and a tubular part together to facilitate welding does not exist at present is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fixture manufacturing, and particularly relates to a fixture for welding sheet metal and tubular parts. BACKGROUND

[0002] In the process of welding sheet metal on the outer circumferences between the two ends of tubular parts, workers generally clamp the sheet metal with pliers, and then fix the tubular parts on a workbench for welding. This method is relatively troublesome, and workers can only clamp one sheet metal at a time, so the welding efficiency is relatively low. Moreover, the two tubular parts need to be welded together in parallel first, and then the sheet metal is welded on the tubular parts, which requires two steps in the traditional way, making the process cumbersome and the production efficiency low. CONTENT OF THE UTILITY MODEL

[0003] The application aims at the shortcomings of the prior art, adopts the mode of arranging a plurality of first clamping hands in cooperation with second clamping hands and third clamping hands, and designs a fixture for welding sheet metal and tubular parts, so that workers can fix a plurality of sheet metal parts and tubular parts together at the same time, and then facilitate welding, thereby solving the problem that there is no fixture for fixing sheet metal parts and tubular parts together to facilitate welding.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the application is:

[0005] A fixture for welding sheet metal and tubular parts, comprising a base, wherein the base is provided with first clamping hands, second clamping hands and third clamping hands, a plurality of first clamping hands are arranged in order from left to right on the base, a row of second clamping hands and a row of third clamping hands are arranged respectively on the front and back sides of the queue formed by the first clamping hands on the base, the queue formed by the second clamping hands is parallel to the queue formed by the third clamping hands, the connecting line segment between the second clamping fingers A and B for clamping on the second clamping hand is perpendicular to the queue formed by the first clamping hands, the connecting line segment between the two third clamping fingers A and B for clamping on the third clamping hand is perpendicular to the queue formed by the first clamping hands, and the connecting line segment between the two first clamping fingers A and B for performing clamping action on the first clamping hand is parallel to the queue formed by the first clamping hands.

[0006] Preferably, the first clamping finger A is fixedly arranged on the base, the first clamping finger B is slidingly arranged on the base, the first clamping finger B is arranged on one side of the first clamping finger A, a first linear driving device is arranged on the base, an execution end of the first linear driving device is fixedly connected with the first clamping finger B, and the sliding direction of the first linear driving device drives the first clamping finger B to be parallel to the queue formed by the first clamping hand.

[0007] Preferably, the first linear driving device comprises a first cylinder and a first sliding rail, the first cylinder and the first sliding rail are both fixedly arranged on the base, the first sliding rail is parallel to the queue formed by the first clamping hand, the first clamping finger B is slidingly arranged between two ends of the first sliding rail, and a piston rod of the first cylinder is fixedly connected with the first clamping finger B.

[0008] Preferably, a positioning column is arranged on a clamping surface of the first clamping finger B which faces the first clamping finger A, the positioning column is parallel to the first sliding rail, and a first through hole which cooperates with the positioning column is arranged on the first clamping finger A.

[0009] Preferably, a first mounting hole is arranged on the first clamping finger A, a first sensor is arranged in the first mounting hole, and a sensing surface of the first sensor faces a clamping surface of the first clamping finger A.

[0010] Preferably, the second clamping finger A is fixedly arranged on the base, a second cylinder is vertically arranged on the base, a piston rod of the second cylinder is fixedly connected with the second clamping finger B, the second clamping finger A is located directly below the second clamping finger B, the second clamping finger A is parallel to the second clamping finger B, the second clamping finger A is perpendicular to the queue formed by the first clamping hand, and a connecting line segment between the second clamping finger A and the second clamping finger B is perpendicular to the queue formed by the first clamping hand.

[0011] Preferably, a second sensor is arranged on the second clamping finger B, and the second sensor is signal-connected with the second cylinder.

[0012] Preferably, the third clamping finger A is vertically fixedly arranged on the base, one end of a first connecting rod is rotatably connected with one side of the third clamping finger A which faces away from the queue formed by the first clamping hand, the other end of the first connecting rod is rotatably connected between two ends of the third clamping finger B, the third clamping finger A and the third clamping finger B are both perpendicular to the queue formed by the first clamping hand, a piston rod of a third cylinder is rotatably connected with one side of the third clamping finger B which faces away from the queue formed by the first clamping hand, and the third cylinder is fixedly arranged on the base.

[0013] Preferably, the upper surface of the third clamping finger A is provided with at least two upwardly open U-shaped openings arranged along the axis direction of the third clamping finger A, and the plane of the U shape of the U-shaped openings is perpendicular to the queue formed by the first clamping hand.

[0014] Preferably, the first clamping hand is located directly below the gap formed between the two U-shaped openings.

[0015] Preferably, a first stopper is fixed at one end of the queue formed by the first clamping hand on the base, a second stopper is rotatably arranged at the other end of the queue formed by the first clamping hand on the base, the first stopper and the second stopper both intersect with the axis of the two U-shaped openings, a fourth cylinder is vertically arranged on the base, a connecting tail is arranged on the side of the second stopper away from the first stopper, one end of the connecting tail is fixedly connected with the second stopper, the connecting tail is parallel to the queue formed by the first clamping hand, one end of a second connecting rod is rotatably connected between the two ends of the connecting tail, the other end of the second connecting rod is rotatably connected with the base, and the end of the connecting tail away from the second stopper is rotatably connected with the piston rod of the fourth cylinder, and the fourth cylinder is vertically fixed on the base.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The present application adopts the mode of arranging a plurality of first clamping hands to cooperate with the second clamping hand and the third clamping hand, and designs a clamp for welding sheet metal and tubular parts together, so that workers can conveniently fix a plurality of sheet metal parts and tubular parts together at the same time, and then facilitate welding, thereby solving the problem that there is no clamp for fixing sheet metal parts and tubular parts together to facilitate welding. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure of the present application is shown in the structure diagram;

[0019] Figure 2 The relationship between the first clamping hand, the second clamping hand and the third clamping hand is shown in the relationship diagram;

[0020] Figure 3 The relationship between the first clamping hand, the third clamping hand and the base is shown in the relationship diagram;

[0021] Figure 4 The structure of the present application is shown in the structure diagram; Figure 3 The structure of the present application is shown in the structure diagram;

[0022] Figure 5 The connection relationship between the first cylinder and the first clamping finger B is shown in the connection relationship diagram;

[0023] Figure 6 Structure diagram of the first clamping hand;

[0024] Figure 7 Structure diagram of the second clamping hand;

[0025] Figure 8 Structure diagram of the application in clamping the tubular part;

[0026] Figure 9 Structure diagram of the application in clamping the tubular part and the sheet metal.

[0027] 1, base; 2, first clamping finger A; 3, first clamping finger B; 4, second clamping finger A; 5, second clamping finger B; 6, third clamping finger A; 7, third clamping finger B; 8, first cylinder; 9, first sliding rail; 10, positioning bolt; 11, first sensor; 12, second sensor; 13, second cylinder; 14, first connecting rod; 15, third cylinder; 16, U-shaped opening; 17, protrusion; 18, first stop block; 19, second stop block; 20, fourth cylinder; 21, connecting tail; 22, second connecting rod. DETAILED DESCRIPTION

[0028] As shown in Figures 1-9 A clamp for the cooperation and welding of sheet metal and tubular parts, comprising a base 1, the base 1 is provided with a first clamping hand, a second clamping hand, and a third clamping hand, a plurality of first clamping hands are arranged in order from left to right on the base 1, a row of second clamping hands and a row of third clamping hands are arranged respectively on the front and back of the queue formed by the first clamping hands on the base 1, the queue formed by the second clamping hands is parallel to the queue formed by the third clamping hands, the connecting line segment between the second clamping finger A4 and the second clamping finger B5 for clamping on the second clamping hand is perpendicular to the queue formed by the first clamping hands, the connecting line segment between the two third clamping fingers A6 and B7 for clamping on the third clamping hand is perpendicular to the queue formed by the first clamping hands, and the connecting line segment between the two first clamping fingers A2 and B3 for clamping on the first clamping hand is parallel to the queue formed by the first clamping hands.

[0029] In the present application, when used, two tubular members 13 are held by the third clamping hand, then a connecting member is held by the first clamping hand, so that the two ends of the connecting member are in contact with the outer side wall between the two ends of one tubular member 13, so that the welding gun can connect the two tubular members 13 together, and the second clamping hand is used to hold the sheet metal 24, so that the sheet metal 24 is in contact with the tubular member 13, and the welding gun can weld the sheet metal 24 and the tubular member 13 together. After such design, several sheet metals 24 can be clamped at the same time to cooperate with the tubular member 13, and then a plurality of welding guns are used, one welding gun is responsible for welding one sheet metal 24, so that the plurality of sheet metals 24 and the tubular member 13 can be welded together at the same time.

[0030] Preferably, the first clamping finger A2 is fixedly arranged on the base 1, the first clamping finger B3 is slidably arranged on the base 1, the first clamping finger B3 is arranged on one side of the first clamping finger A2, a first linear driving device is arranged on the base 1, the execution end of the first linear driving device is fixedly connected with the first clamping finger B3, and the sliding direction of the first linear driving device is parallel to the queue formed by the first clamping hand. After such arrangement, the first clamping finger B3 is driven by the first linear driving device to move towards the first clamping finger A, so that the clamping action of the first clamping hand can be realized. When the first linear driving device drives the first clamping finger B3 to move away from the first clamping finger A, the loosening action of the first clamping hand can be realized.

[0031] Preferably, the first linear driving device comprises a first cylinder 8 and a first sliding rail 9, the first cylinder 8 and the first sliding rail 9 are both fixedly arranged on the base 1, the first sliding rail is parallel to the queue formed by the first clamping hand, the first clamping finger B3 is slidably arranged between the two ends of the first sliding rail 9, and the piston rod of the first cylinder 8 is fixedly connected with the first clamping finger B3. Through the arrangement of the first sliding rail 9, the movement of the first clamping finger B3 driven by the first linear driving device is more stable.

[0032] Preferably, in order to ensure the accuracy of clamping, the sheet metal 24 is generally provided with a positioning hole, therefore, a positioning column 10 is arranged on the clamping surface of the first clamping finger B3 which faces the first clamping finger A2, the positioning column 10 is parallel to the first sliding rail 9, and the first clamping finger A2 is provided with a first through hole which cooperates with the positioning column 10. After such arrangement, when the first clamping finger A2 and the first clamping finger B3 are close to each other to clamp the connecting member, the positioning column 10 penetrates the positioning hole of the connecting member and the first through hole of the first clamping finger A2, so that the position of the connecting member between the first clamping finger A2 and the second clamping finger B3 is accurate, thereby ensuring that the position of the connecting member welded on the tubular member 23 is accurate.

[0033] Preferably, the first clamping finger A2 is provided with a first mounting hole, and a first sensor 11 is arranged in the first mounting hole, and the sensing surface of the first sensor 11 faces the clamping surface of the first clamping finger A2. By arranging the first sensor 11, it is convenient for the first cylinder 8 to identify whether the connecting piece is clamped or not after clamping.

[0034] Preferably, the second clamping finger A4 is fixedly arranged on the base 1, a second cylinder 13 is vertically arranged on the base 1, the piston rod of the second cylinder 13 is fixedly connected with the second clamping finger B5, the second clamping finger A4 is located directly below the second clamping finger B5, the second clamping finger A4 is parallel to the second clamping finger B5, the second clamping finger A4 is perpendicular to the queue formed by the first clamping hand, and the connecting line segment between the second clamping finger A4 and the second clamping finger B5 is perpendicular to the queue formed by the first clamping hand. After being arranged in this way, when the second cylinder 13 is elongated, the second clamping finger B5 is driven to move away from the second clamping finger A4, so that it is convenient to clamp the sheet metal 24.

[0035] Preferably, the second clamping finger B5 is provided with a second sensor 12, and the second sensor 12 is signal-connected with the second cylinder 13. The second sensor 12 is arranged to identify whether the second clamping hand clamps the sheet metal 24 or not.

[0036] Preferably, the third clamping finger A6 is vertically fixedly arranged on the base 1, one end of a first connecting rod 14 is rotatably connected to the side of the third clamping finger A6 which is away from the queue formed by the first clamping hand, the other end of the first connecting rod 14 is rotatably connected between the two ends of the third clamping finger B7, the third clamping finger A6 and the third clamping finger B7 are both perpendicular to the queue formed by the first clamping hand, the piston rod of a third cylinder 15 is rotatably connected to the side of the third clamping finger B7 which is away from the queue formed by the first clamping hand, and the third cylinder 15 is fixedly arranged on the base 1. In this way, the third clamping finger B7 is driven to rotate by the elongation and contraction of the third cylinder 15, so that the clamping action is realized.

[0037] Preferably, at least two U-shaped openings 16 which are open upward are arranged on the upper surface of the third clamping finger A6 along the axial direction of the third clamping finger A6, the plane in which the U shape of the U-shaped opening 16 is located is perpendicular to the queue formed by the first clamping hand, and a protrusion 17 which cooperates with the U-shaped opening 16 is arranged on the lower surface of the third clamping finger B7. The two U-shaped openings 16 are used for placing the tubular piece 23, so as to avoid the rolling of the tubular piece 23 on the upper surface of the third clamping finger A6. The U-shaped opening 16 cooperates with the protrusion 17 to clamp the tubular piece 23.

[0038] Preferably, the first clamping hand is located directly below the gap formed between the two U-shaped openings 16. This design makes the first clamping hand more stable when clamping the connecting piece, because it can clamp the middle position of the connecting piece.

[0039] Preferably, a first stopper 18 is fixed at one end of the queue formed by the first clamping hand on the base 1, and a second stopper 19 is rotatably arranged at the other end of the queue formed by the first clamping hand on the base 1. Both the first stopper 18 and the second stopper 19 intersect the axis of the two U-shaped openings 16. A fourth cylinder 20 is vertically arranged on the base 1. The side of the second stopper 19 away from the first stopper 18 is provided with a connecting tail 21. One end of the connecting tail 21 is fixedly connected with the second stopper 19, and the connecting tail 21 is parallel to the queue formed by the first clamping hand. One end of a second connecting rod 22 is rotatably connected between the two ends of the connecting tail 21, and the other end of the second connecting rod 22 is rotatably connected with the base 1. The end of the connecting tail 21 away from the second stopper 19 is rotatably connected with the piston rod of the fourth cylinder 20, and the fourth cylinder 20 is vertically fixed on the base 1. By arranging the first stopper 18 and the second stopper 19, the tubular piece 23 can be limited and prevented from moving in the axial direction. At the same time, during use, workers are prevented from mistakenly welding a length of the tubular piece 23 with the sheet metal 24, because the too long tubular piece 23 cannot be placed between the first stopper 18 and the second stopper 19. Preferably, the first stopper 8 can be arranged at the side of the U-shaped opening of the third clamping finger A8 away from the second stopper 19 in the queue of the third clamping hand.

Claims

1. A fixture for the tack welding of sheet metal to a tubular member, characterised in that, The base (1) is provided with first, second and third clamping hands, a plurality of first clamping hands are arranged in sequence from left to right on the base (1), a row of second clamping hands and a row of third clamping hands are arranged on the base (1) on the front and back of the queue formed by the first clamping hands, the queue formed by the second clamping hands is parallel to the queue formed by the third clamping hands, the connecting line segment between the second clamping fingers A (4) and the second clamping fingers B (5) for clamping on the second clamping hand is perpendicular to the queue formed by the first clamping hands, the connecting line segment between the two mutually matched third clamping fingers A (6) and the third clamping fingers B (7) for clamping on the third clamping hand is perpendicular to the queue formed by the first clamping hands, and the connecting line segment between the two mutually matched first clamping fingers A (2) and the first clamping fingers B (3) for clamping on the first clamping hand is parallel to the queue formed by the first clamping hands.

2. The fixture for welding sheet metal to a tubular member of claim 1, wherein, The first clamping finger A (2) is fixedly arranged on the base (1), the first clamping finger B (3) is slidably arranged on the base (1), the first clamping finger B (3) is arranged on one side of the first clamping finger A (2), the base (1) is provided with a first linear driving device, the execution end of the first linear driving device is fixedly connected with the first clamping finger B (3), and the sliding direction of the first linear driving device driving the first clamping finger B (3) is parallel to the queue formed by the first clamping hands.

3. The fixture for welding sheet metal to a tubular member of claim 2, wherein, The first linear driving device comprises a first cylinder (8) and a first sliding rail (9), the first cylinder (8) and the first sliding rail (9) are both fixedly arranged on the base (1), the first sliding rail is parallel to the queue formed by the first clamping hands, the first clamping finger B (3) is slidably arranged between the two ends of the first sliding rail (9), and the piston rod of the first cylinder (8) is fixedly connected with the first clamping finger B (3).

4. The fixture for welding sheet metal to a tubular member of claim 3, wherein, A positioning column (10) is arranged on the clamping surface of the first clamping finger B (3) facing the first clamping finger A (2), the positioning column (10) is parallel to the first sliding rail (9), and the first clamping finger A (2) is provided with a first through hole matched with the positioning column (10).

5. The fixture for welding sheet metal to a tubular member of claim 1, wherein, The second clamping finger A (4) is fixedly arranged on the base (1), a second cylinder (13) is vertically arranged on the base (1), the piston rod of the second cylinder (13) is fixedly connected with the second clamping finger B (5), the second clamping finger A (4) is located directly below the second clamping finger B (5), the second clamping finger A (4) is parallel to the second clamping finger B (5), the second clamping finger A (4) is perpendicular to the queue formed by the first clamping hands, and the connecting line segment between the second clamping finger A (4) and the second clamping finger B (5) is perpendicular to the queue formed by the first clamping hands.

6. A fixture for the tack welding of sheet metal to a tubular member according to claim 5 wherein, A second sensor (12) is arranged on the second clamping finger B (5), and the second sensor (12) is signal connected with the second cylinder (13).

7. The fixture for welding sheet metal to a tubular member of claim 1, wherein, The third clamping finger A (6) is vertically fixed on the base (1), one end of the first connecting rod (14) is rotatably connected to the third clamping finger A (6) on the side away from the queue formed by the first clamping hand, the other end of the first connecting rod (14) is rotatably connected between the two ends of the third clamping finger B (7), the third clamping finger A (6) and the third clamping finger B (7) are perpendicular to the queue formed by the first clamping hand, the piston rod of the third cylinder (15) is rotatably connected to the third clamping finger B (7) on the side away from the queue formed by the first clamping hand, and the third cylinder (15) is fixed on the base (1).

8. The fixture for welding sheet metal to a tubular member of claim 7, wherein, At least two U-shaped openings (16) opening upward are arranged on the upper surface of the third clamping finger A (6) along the axis direction of the third clamping finger A (6), the plane where the U shape of the U-shaped opening (16) is located is perpendicular to the queue formed by the first clamping hand, and the lower surface of the third clamping finger B (7) is provided with a protrusion (17) matched with the U-shaped opening (16).

9. The fixture of claim 8, wherein, The first clamping hand is located directly below the gap formed between the two U-shaped openings (16).

10. The fixture for welding sheet metal to a tubular member of claim 9, wherein, A first stop block (18) is fixed on the base (1) at one end of the queue formed by the first clamping hand, a second stop block (19) is rotatably arranged on the base (1) at the other end of the queue formed by the first clamping hand, the first stop block (18) and the second stop block (19) both intersect with the axes of the two U-shaped openings (16), a fourth cylinder (20) is vertically arranged on the base (1), the second stop block (19) is provided with a connecting tail (21) on the side away from the first stop block (18), one end of the connecting tail (21) is fixedly connected with the second stop block (19), the connecting tail (21) is parallel to the queue formed by the first clamping hand, one end of the second connecting rod (22) is rotatably connected between the two ends of the connecting tail (21), the other end of the second connecting rod (22) is rotatably connected with the base (1), the piston rod of the fourth cylinder (20) is rotatably connected to the end of the connecting tail (21) away from the second stop block (19), and the fourth cylinder (20) is vertically fixed on the base (1).

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