Special-shaped part welding positioning tool

Abstract

A special-shaped part welding and positioning tool belongs to the technical field of welding and positioning and comprises a base, an extension frame is mounted on the rear side wall of the base, an air cylinder is mounted at the bottom end of the extension frame, the output end of the air cylinder is connected with a double-sided rack, two positioning assemblies are arranged on the left side and the right side of the base, and the two positioning assemblies are in central symmetry relative to the base. The welding angle of a workpiece can be adjusted, angle adjustment is more flexible and changeable, diversified welding angle requirements can be better met, adaptive adjustment can be carried out according to welding requirements of special-shaped workpieces, complex and changeable welding process requirements can be better met, the application range of equipment is widened, and the welding angle adjusting device is suitable for large-scale popularization and application. The two sets of positioning clamps are driven by a unified driving power source to synchronously and relatively rotate, compared with a traditional single-side adjusting mode, the adjusting process of the positioning clamps on the two sides can be more accurately controlled, and error factors such as unbalanced and asynchronous adjustment on the two sides caused by single-side adjustment are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to welding positioning technical field, concretely relates to a special-shaped part welding positioning frock. BACKGROUND

[0002] Because finished product workpiece is difficult to satisfy the production demand of special shape once, so often need to weld different workpieces to form the special-shaped part of finished product.

[0003] The related technology (announcement number CN207239546U) discloses a kind of quick positioning welding frock of special-shaped complex structure sheet metal part, including base plate, table top, electrode, front positioning baffle, first positioning mechanism and second positioning mechanism, the base plate is set in the top of the table top;The first positioning mechanism and second positioning mechanism are set in the front and rear side of the top surface of the base plate one by one;The front positioning baffle is fixed in the front side of the first positioning mechanism;The electrode is fixed above the front positioning baffle;The first positioning mechanism includes first support, first fixed guide frame, first sealing plate and first floating profiling positioning block;The second positioning mechanism includes second support, second fixed guide frame, second sealing plate and second floating profiling positioning block.The quick positioning welding frock of the utility model can realize the quick positioning of handle support class complex special-shaped structure sheet metal part spot welding, reduce the operation difficulty of operator.

[0004] Before special-shaped part welding operation is carried out, in view of the difference of welding finished product in specification, shape, purpose and the like, the angle required for special-shaped part welding positioning is also different accordingly.The traditional welding positioning frock is mostly fixed design, its structure and function are relatively single, can only be aimed at specific angle positioning operation, lacks flexible angle adjusting ability.When facing the diversified welding angle demand, this traditional frock is difficult to make adaptive adjustment, so that in the process of special-shaped part welding positioning, it cannot fully meet the complex and changeable welding process requirement, so that its application range is limited. UTILITY MODEL CONTENTS

[0005] In view of the problems in prior art that traditional welding positioning frock is mostly fixed design, its structure and function are relatively single, can only be aimed at specific angle positioning operation, lacks flexible angle adjusting ability, the utility model provides a kind of special-shaped part welding positioning frock, the utility model can adjust the angle of workpiece welding, angle adjustment is more flexible and changeable, can meet the diversified welding angle demand more, can be adaptively adjusted according to the welding demand of special-shaped part, can meet the complex and changeable welding process demand more, expand equipment use range.The specific technical scheme is as follows:

[0006] The utility model provides a special-shaped part welding positioning tool, including the base, the rear side wall of base is installed with extension frame, the bottom end of extension frame is installed with pneumatic cylinder, the output end of pneumatic cylinder is connected with double-sided rack, two groups of positioning components are arranged on the left and right sides of base, and two groups of positioning components are centrally symmetrical relative to base,

[0007] Each group of positioning components includes a rotating shaft that extends through the base in a vertical direction, the rotating shaft is rotatably connected to the base, a gear is installed at the bottom end of the rotating shaft, the double-sided rack is meshingly connected to the side wall of the gear, a positioning clamp is fixedly installed at the top end of the rotating shaft, and a slot is formed in the positioning clamp in a horizontal direction.

[0008] In the above technical solution, a limiting component is arranged below the base to limit the moving direction of the double-sided rack.

[0009] The limiting component includes two mounting seats fixedly installed below the base, the two mounting seats are symmetrically arranged below the base, a limiting rod is installed between the two mounting seats, a sleeve block is slidably sleeved on the limiting rod, and the sleeve block is fixedly connected to the double-sided rack.

[0010] In the above technical solution, the opposite ends of the two positioning clamps are arranged in an arc shape.

[0011] In the above technical solution, a rotating support component is arranged between the positioning clamp and the base.

[0012] The rotating support component includes a guide strip installed on the base, a roller is rotatably arranged on the guide strip, and the roller is connected to the lower surface of the base through a connecting frame.

[0013] In the above technical solution, the center of the guide strip is coaxially arranged with the axis of the rotating shaft.

[0014] In the above technical solution, the slot is arranged in a V shape.

[0015] In the above technical solution, a pressure component is arranged above the positioning clamp.

[0016] The pressure component includes a connecting rod fixedly installed on the side wall of the positioning clamp, a connecting block is installed at the top end of the connecting rod, a seat body is installed on the side wall of the connecting block, a screw rod is arranged at the seat body, a positioning piece is arranged below the screw rod, two positioning bolts are threadedly sleeved on the screw rod, and the two positioning bolts are arranged on the upper and lower sides of the seat body, respectively.

[0017] In the above technical solution, a sliding groove is formed in the seat body along the length direction of the seat body, and the screw rod is slidably embedded in the inner cavity of the sliding groove.

[0018] The bottom end of the base is provided with a supporting leg at each of four corners.

[0019] Compared with the prior art, the special-shaped part welding positioning tool has the beneficial effects that:

[0020] I. The left and right positioning clamps can be adjusted in relative angle, so that the angle of workpiece welding is adjusted, the angle adjustment is more flexible and changeable, the diversified welding angle requirements can be met, adaptive adjustment can be made according to the welding requirements of the special-shaped part, the complex and changeable welding process requirements can be met, and the use range of the equipment is expanded.

[0021] II. The two groups of gears and the positioning clamps can be synchronously rotated, and the rotation angles of the two groups of positioning clamps are ensured to be the same, the unified driving power source is used to drive the two groups of positioning clamps to synchronously rotate relatively, compared with the traditional unilateral adjustment mode, the adjustment process of the two positioning clamps can be more accurately controlled, the error factors such as imbalance and asynchronization of bilateral adjustment caused by unilateral adjustment are greatly reduced, and the accuracy and stability of the whole device in the adjustment operation process are effectively improved.

[0022] III. The mounting seat, the limiting rod and the sleeve block are arranged, so that the double-sided rack can keep moving in the front-rear direction, and the left and right positioning clamps can synchronously rotate in the circumferential direction.

[0023] IV. The seat body and the sliding groove are arranged, so that the position of the screw rod in the inner cavity of the sliding groove can be adjusted, the position of the positioning piece relative to the positioning clamp can be adjusted, and the positioning requirement of the workpiece with different lengths in the positioning clamp can be met.

[0024] V. In the utility model, the two positioning clamps are arranged in arc shape at one end, so that the two positioning clamps will not interfere with each other when rotating.

[0025] VI. In the utility model, the guide strip and the roller are arranged below the positioning clamp, so that the bottom end of the positioning clamp can be rotatably supported, and the stability of the positioning clamp during rotation is ensured.

[0026] In summary, the utility model can adjust the angle of workpiece welding, angle adjustment is more flexible and changeable, can satisfy more diversified welding angle demand more, can adaptively adjust according to the welding demand of special-shaped part, can satisfy complex and changeable welding process demand more, expand equipment use range, and adopt unified driving power source to drive two sets of positioning fixture to carry out synchronous relative rotation, compared with traditional single side adjustment mode, it can more accurately control the adjustment process of two sides positioning fixture, greatly reduces the error factors such as two sides adjustment imbalance, out of step caused by single side adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the structural diagram of base of the utility model;

[0028] Figure 2 It is the structural diagram of rack of the utility model;

[0029] Figure 3 It is the structural diagram of positioning fixture of the utility model;

[0030] Figure 4 It is the overhead structural diagram of gear of the utility model;

[0031] Figures 1 to 4 In the figure, 1, base, 2, extension frame, 3, cylinder, 4, double-sided rack, 5, rotating shaft, 6, gear, 7, positioning fixture, 8, groove, 9, mounting seat, 10, limit rod, 11, sleeve block, 12, guide bar, 13, roller, 14, connecting rod, 15, connecting block, 16, seat body, 17, sliding slot, 18, screw rod, 19, positioning sheet, 20, positioning bolt, 21, supporting leg. DETAILED DESCRIPTION

[0032] The specific implementation case and attached Figures 1 to 4 Further illustrate the utility model, but the utility model is not limited to these embodiments.

[0033] Refer to Figures 1 to 4As shown, a special-shaped part welding positioning tool includes a base 1, an extension frame 2 is mounted on the rear side wall of the base 1, a gas cylinder 3 is mounted at the bottom end of the extension frame 2, a double-sided rack 4 is connected to the output end of the gas cylinder 3, two sets of positioning assemblies are arranged on the left and right sides of the base 1 and are centrally symmetrically arranged relative to the base 1; each set of positioning assembly includes a rotating shaft 5 penetrating the base 1 in the vertical direction, the rotating shaft 5 is rotatably connected with the base 1 through a bearing, a gear 6 is mounted at the bottom end of the rotating shaft 5, the double-sided rack 4 is meshingly connected with the side wall of the gear 6, a positioning clamp 7 is fixedly mounted at the top end of the rotating shaft 5, a groove 8 is formed in the positioning clamp 7 in the horizontal direction, the workpieces to be welded are respectively placed in the two grooves 8, the preliminary positioning of the two workpieces in the positioning clamp 7 is realized, the double-sided rack 4 is driven by the opened gas cylinder 3 to move in the front and back directions, so as to drive the two gears 6 to synchronously rotate in the relative direction, so as to drive the positioning clamps 7 at the respective positions of the two rotating shafts 5 to rotate in the relative direction, so as to realize the relative rotation of the workpieces in the two grooves 8, and the butt joint of the two workpieces is facilitated to be butt jointed at a certain inclined angle, thereby meeting the diversified welding requirements.

[0034] Specifically, referring to Figure 2 As shown, a limiting assembly for limiting the moving direction of the double-sided rack 4 is arranged below the base 1; the limiting assembly includes two mounting seats 9 fixedly mounted below the base 1, the two mounting seats 9 are symmetrically arranged below the base 1, a limiting rod 10 is mounted between the two mounting seats 9, a sleeve block 11 is slidably sleeved on the limiting rod 10, the sleeve block 11 is fixedly connected with the double-sided rack 4, when the double-sided rack 4 is moved by the opened gas cylinder 3, the sleeve block 11 can be driven to move along the limiting rod 10, that is, the moving direction of the double-sided rack 4 is limited and guided by the movement of the limiting rod 10 along the sleeve block 11, the moving direction of the double-sided rack 4 is ensured, and the normal rotation of the two gears 6 is ensured.

[0035] Referring to Figure 2 As shown, the opposite ends of the two positioning clamps 7 are arranged in an arc shape, so that when the two positioning clamps 7 rotate, interference therebetween can be avoided.

[0036] In addition, referring to Figure 1 and Figure 3 As shown, a rotating support assembly is arranged between the positioning clamp 7 and the base 1; the rotating support assembly includes a guide strip 12 mounted on the base 1, a roller 13 is rollingly arranged on the guide strip 12, and the roller 13 is connected with the lower surface of the base 1 through a connecting frame, when the positioning clamp 7 rotates about the rotating shaft 5 as the axis, the roller 13 can be driven to roll along the guide strip 12, the positioning clamp 7 can be rotatably supported by the roller 13, and the stability of the positioning clamp 7 during rotation is further ensured.

[0037] In order to ensure that the roller 13 does not deviate from the guide strip 12 during rotation, the center of the guide strip 12 is coaxial with the axis of the rotating shaft 5, thereby ensuring that when the positioning clamp 7 rotates around the rotating shaft 5, the roller 13 can accurately roll along the guide strip 12.

[0038] The groove body 8 is arranged in a V shape, and the workpiece is placed in the groove body 8. With the aid of the two inclined inner walls of the groove body 8, the workpiece can be preliminarily limited.

[0039] Mainly refer to Figure 2 As shown, the positioning clamp 7 is provided with a pressure assembly above; the pressure assembly includes a connecting rod 14 fixedly installed on the side wall of the positioning clamp 7, a connecting block 15 installed at the top end of the connecting rod 14, a seat body 16 installed on the side wall of the connecting block 15, a screw rod 18 arranged at the seat body 16, a positioning piece 19 arranged below the screw rod 18, and two positioning bolts 20 threadedly sleeved on the screw rod 18, and the two positioning bolts 20 are arranged on the upper and lower sides of the seat body 16, respectively. The workpiece to be welded is placed in the two groove bodies 8, respectively. By moving the screw rod 18 downward, the positioning piece 19 is pressed on the upper surface of the space in the positioning clamp 7, and the two positioning bolts 20 are respectively screwed onto the screw rod 18, so that the two positioning bolts 20 are respectively attached to the upper and lower surfaces of the seat body 16. Thus, the screw rod 18 and the positioning piece 19 are stably arranged at the seat body 16, that is, the positioning piece 19 limits the workpiece in the positioning clamp 7; the seat body 16 is provided with a sliding groove 17 along the length direction thereof, and the screw rod 18 is slidably embedded in the inner cavity of the sliding groove 17. By adjusting the position of the screw rod 18 in the inner cavity of the sliding groove 17, the position of the positioning piece 19 above the positioning clamp 7 can be adjusted to meet the positioning requirements of different workpieces in the positioning clamp 7.

[0040] In addition, the base 1 is provided with a supporting leg 21 at each of the four corners of the bottom end, and the supporting leg 21 can support the equipment at the bottom end of the base 1, so that the rotating shaft 5, the gear 6 and other components below the base 1 are not disturbed by the ground.

[0041] It is worth noting that the air cylinder 3 used in this application is a commonly used self-locking air cylinder, and its output end can be stopped at any position and locked; the double-sided rack 4 is a double-sided rack, which uses a commonly used model on the market, and the model is not limited here. The model of the above-mentioned existing components is not limited and is not described in detail.

[0042] The working principle of the special-shaped part welding positioning tool of the embodiment is as follows:

[0043] The workpieces to be welded are respectively placed in the two groove bodies 8, the positioning sheet 19 is pressed on the upper surface of the space in the positioning clamp 7 by moving the screw rod 18 downward, and the two positioning bolts 20 are respectively screwed on the screw rod 18, so that the two positioning bolts 20 respectively abut the upper and lower surfaces of the seat body 16, thereby realizing the stability of the screw rod 18 and the positioning sheet 19 at the seat body 16, that is, the positioning of the workpieces in the positioning clamp 7 by the positioning sheet 19 is realized; in addition, by adjusting the position of the screw rod 18 in the inner cavity of the sliding groove 17, the position of the positioning sheet 19 above the positioning clamp 7 can be adjusted to meet the positioning requirements of different workpieces in the positioning clamp 7;

[0044] The opening of the air cylinder 3 drives the double-sided rack 4 to move in the front-back direction, so that the two gears 6 are synchronously rotated in the opposite direction, so that the two rotating shafts 5 drive the positioning clamps 7 at the respective positions to rotate in the opposite direction, so that the workpieces in the two groove bodies 8 are relatively rotated, the butt joint of the two workpieces is formed at a certain inclination angle, and the diversified welding requirements are met;

[0045] The utility model can adjust the angle of workpiece welding, the angle adjustment is more flexible and changeable, can more satisfy diversified welding angle demand, can adaptively adjust according to the welding demand of special-shaped part, can more satisfy complex and changeable welding process demand, expand equipment use range, and adopt unified driving power source to drive two sets of positioning clamps 7 to carry out synchronous relative rotation, compared with traditional single side adjustment mode, it can more accurately control the adjustment process of two side positioning clamps 7, greatly reduces the error factors such as two side adjustment imbalance, asynchronization caused by single side adjustment.

[0046] The above only for the preferred embodiment of the utility model, and does not limit the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A profiled part welding positioning tool comprising a base (1), characterized in that: The rear side wall of the base (1) is provided with an extension frame (2), the bottom end of the extension frame (2) is provided with a pneumatic cylinder (3), the output end of the pneumatic cylinder (3) is connected with a double-sided rack (4), and the left and right sides of the base (1) are provided with two groups of positioning assemblies, and the two groups of positioning assemblies are centrally symmetrically arranged relative to the base (1); Each group of positioning assemblies comprises a rotating shaft (5) penetrating through the base (1) in the vertical direction, the rotating shaft (5) is rotatably connected with the base (1), the bottom end of the rotating shaft (5) is provided with a gear (6), the double-sided rack (4) is meshedly connected with the side wall of the gear (6), and the top end of the rotating shaft (5) is fixedly provided with a positioning clamp (7), and the positioning clamp (7) is provided with a groove (8) in the horizontal direction.

2. The profiled part welding positioning tooling according to claim 1, characterized in that: A limiting assembly is arranged below the base (1) and is used for limiting the moving direction of the double-sided rack (4); The limiting assembly comprises two mounting seats (9) fixedly mounted below the base (1), the two mounting seats (9) are symmetrically arranged above and below the base (1), a limiting rod (10) is arranged between the two mounting seats (9), a sleeve block (11) is slidably arranged on the limiting rod (10), and the sleeve block (11) is fixedly connected with the double-sided rack (4).

3. The profiled member welding positioning fixture according to claim 1, characterized in that: The opposite ends of the two positioning clamps (7) are arranged in an arc shape.

4. The profiled member welding positioning fixture according to claim 1, characterized in that: A rotating support assembly is arranged between the positioning clamp (7) and the base (1). The rotating support assembly comprises a guide strip (12) mounted on the base (1), and a roller (13) is arranged on the guide strip (12) in a rolling mode, and the roller (13) is connected with the lower surface of the base (1) through a connecting frame.

5. The profiled member welding positioning fixture according to claim 4, characterized in that: The center of the guide strip (12) is coaxially arranged with the axis of the rotating shaft (5).

6. The profiled member welding positioning fixture according to claim 1, characterized in that: The groove (8) is arranged in a V shape.

7. The profiled member welding positioning fixture according to claim 1, characterized in that: A pressure assembly is arranged above the positioning clamp (7). The pressure assembly comprises a connecting rod (14) fixedly mounted on the side wall of the positioning clamp (7), a connecting block (15) is mounted at the top end of the connecting rod (14), a seat body (16) is mounted on the side wall of the connecting block (15), a screw rod (18) is arranged at the seat body (16), a positioning piece (19) is arranged below the screw rod (18), two positioning bolts (20) are threadedly arranged on the screw rod (18), and the two positioning bolts (20) are arranged on the upper and lower sides of the seat body (16), respectively.

8. The profiled member welding positioning fixture according to claim 7, characterized in that: A sliding groove (17) is formed in the seat body (16) along the length direction of the seat body (16), and the screw rod (18) is slidably embedded in the inner cavity of the sliding groove (17).

9. The profiled member welding positioning fixture according to claim 1, characterized in that: Four supporting legs (21) are arranged at the bottom corners of the base (1).

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