Adjustable welding clamp

Abstract

The utility model relates to the technical field of welding clamps, in particular to an adjustable welding clamp which comprises a bottom plate, a sliding rail, an L-shaped sliding frame and the like. Sliding rails are fixedly connected to the top of the bottom plate in a front-back symmetry mode, two L-shaped sliding frames are connected between the two sliding rails in a sliding mode, and the device further comprises a clamping assembly, a workpiece body, a driving assembly and a sliding plate. By arranging the clamping assembly, the driving assembly and the sliding plate, the clamping roller and the sliding plate located on the lower portion can bear a workpiece body, in this way, the workpiece body does not need to be manually lifted when clamped, the driving assembly can apply stable power to the workpiece body when the workpiece body rotates, and therefore the workpiece body rotates at a constant speed, and the welding quality is improved; and the sliding plate can slide left and right, so that workpiece bodies with different lengths are effectively lifted and supported, and the situation that the clamped end parts are disturbed by the unfixed end parts of the workpiece bodies, so that the welding quality is influenced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixtures, in particular to an adjustable welding fixture. Background Art

[0002] In order to solve the shortcoming that the steel pipe welding clamp in the prior art cannot rotate the steel pipe while clamping and fixing the steel pipe, the patent with patent publication number CN219805636U discloses an adjustable steel pipe welding clamp, which can fix the two ends of the two steel pipes to be welded through the cooperation of two top frames and multiple extrusion wheels in the top frames, and can bring the two steel pipes close to each other and weld them through the driving motor with the cooperation of the bidirectional threaded rod. The two steel pipes can be rotated through the two rotating wheels in each support frame, which effectively solves the problem that the steel pipe welding clamp in the prior art cannot rotate the steel pipe while clamping and fixing the steel pipe.

[0003] Although the above scheme solves the shortcomings of the prior art, when the above scheme is implemented, it only clamps and fixes the workpiece body near the part to be welded. When clamping and fixing the workpiece, it is necessary to manually lift the workpiece to keep the workpiece in a horizontal state, which is more troublesome. Moreover, by manually driving the workpiece body to rotate, it is impossible to ensure uniform rotation when continuously welding the two workpiece bodies, thereby reducing the welding quality. When the length of the workpiece body is long, its unfixed end will also cause disturbance to its clamped end, further affecting the welding quality. In order to solve the above problems, an adjustable welding fixture is proposed. Summary of the invention

[0004] The purpose of the utility model is to solve the above problems and provide an adjustable welding fixture.

[0005] The specific scheme of the utility model is: an adjustable welding fixture, including a base plate, a slide rail, an L-shaped sliding frame, a cylinder A and a control panel, the top of the base plate is symmetrically fixedly connected with a slide rail, two L-shaped sliding frames are slidably connected between the two slide rails, the top of the base plate is symmetrically fixedly installed with a cylinder A, the ends of the telescopic rods of the two cylinders A are respectively fixedly connected to the adjacent L-shaped sliding frames, a control panel is fixedly installed in the middle of the top of the base plate, and also includes a clamping assembly, a workpiece body, a driving assembly and a slide plate, a clamping assembly is arranged on the L-shaped sliding frame, a workpiece body is arranged on the clamping assembly, the clamping assembly is used to clamp and fix the workpiece body, a driving assembly for driving the workpiece body to rotate is arranged on the clamping assembly, and a slide plate for receiving the workpiece body is symmetrically slidably connected between the two slide rails.

[0006] Furthermore, the clamping assembly includes a slider, a cylinder B, an L-shaped clamp, a reinforcement plate, a fixed seat and a clamping roller. The upper parts of the two L-shaped sliding frames are slidably connected to the slider, the upper parts of the two L-shaped sliding frames are fixedly installed with cylinders B, the ends of the telescopic rods of the two cylinders B are fixedly connected to the tops of adjacent sliders, the front sides of the two sliders are fixedly connected to the L-shaped clamps, two reinforcement plates are provided on the two L-shaped clamps, the bottom of the L-shaped clamps are fixedly connected to four fixed seats at intervals, the lower parts of the two L-shaped sliding frames are also fixedly connected to four fixed seats at intervals, and clamping rollers are rotatably connected between two adjacent fixed seats on the same side in the front-to-back direction, so that the workpiece body can be fixedly clamped between the four clamping rollers on the same side in the left-right direction.

[0007] Furthermore, the driving assembly includes a motor A, a pulley A, a pulley B and a transmission belt. Motor A is installed on the side walls of two reinforcement plates that are far away from each other. The output shaft of motor A passes through the adjacent reinforcement plates, and its ends are fixedly connected to pulley A. The middle parts of the four clamping rollers located above are also fixedly connected to pulley A. Square openings are opened at the lower parts of the two L-shaped clamping plates. The two L-shaped clamping plates are rotatably connected to pulley B in the middle of the square openings, and a transmission belt is wound around the adjacent pulleys A and B.

[0008] Furthermore, it also includes an n-shaped mounting plate, a guide column, a screw, a motor B and a U-shaped baffle. The n-shaped mounting plate is fixedly connected to the middle of the top of the base plate, the left side of the n-shaped mounting plate is fixedly connected to the guide column, the right side of the n-shaped mounting plate is rotatably connected to the screw, and the motor B is also installed on the right side of the n-shaped mounting plate. The output shaft end of the motor B is fixedly connected to the lower end of the screw, and a U-shaped baffle is slidably arranged between the guide column and the screw.

[0009] Furthermore, the clamping rollers are all provided with circular grooves.

[0010] Furthermore, the connection points between the two slides and the slide rails are configured as friction surfaces to prevent the slides from sliding randomly.

[0011] The utility model has the following beneficial effects:

[0012] 1. By setting the clamping assembly, driving assembly and slide plate, the clamping roller and slide plate located at the bottom can bear the workpiece body, so that there is no need to manually lift the workpiece body when clamping it. The driving assembly can apply stable power to the workpiece body when it rotates, so that the workpiece body rotates at a uniform speed, thereby improving the welding quality. The slide plate can slide left and right, thereby effectively lifting and supporting workpiece bodies of different lengths, avoiding the disturbance of the clamped end of the workpiece body caused by the unfixed end of the workpiece body, thereby affecting the welding quality;

[0013] 2. By setting an n-shaped mounting plate and a U-shaped baffle, the U-shaped baffle can locate the initial positions of the two workpiece bodies, thereby improving the welding processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the n-shaped mounting plate, fixing group and sliding plate of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the pulley A, pulley B and transmission belt of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the guide column, screw rod and motor B of the utility model;

[0018] In the figure: 1, bottom plate; 2, slide rail; 3, L-shaped sliding frame; 31, cylinder A; 32, control panel; 41, slider; 42, cylinder B; 43, L-shaped clamping plate; 431, reinforcement plate; 44, fixed seat; 45, clamping roller; 101, workpiece body; 51, motor A; 52, pulley A; 53, pulley B; 54, transmission belt; 6, slide plate; 71, n-shaped mounting plate; 72, guide column; 73, screw; 74, motor B; 75, U-shaped baffle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0022] Please refer to Figure 1-Figure 4 , An adjustable welding fixture includes a base plate 1, a slide rail 2, an L-shaped sliding frame 3, a cylinder A31 and a control panel 32. The slide rail 2 is symmetrically welded and fixed on the top of the base plate 1. Two L-shaped sliding frames 3 are slidably connected between the two slide rails 2. The cylinder A31 is symmetrically fixed on the top of the base plate 1 by bolts. The ends of the telescopic rods of the two cylinders A31 are respectively fixedly connected to the adjacent L-shaped sliding frames 3. A control panel 32 is fixedly installed in the middle of the top of the base plate 1 by bolts. The control panel 32 is electrically connected to the cylinder A31. It also includes a clamping assembly, a workpiece body 101, a driving assembly and a slide plate 6. A clamping assembly is provided on the L-shaped sliding frame 3. The workpiece body 101 is provided on the clamping assembly. The clamping assembly is used to clamp and fix the workpiece body 101. The clamping assembly is provided with a driving assembly for driving the workpiece body 101 to rotate. A slide plate 6 for receiving the workpiece body 101 is symmetrically slidably connected between the two slide rails 2.

[0023] The clamping assembly includes a slider 41, a cylinder B42, an L-shaped clamping plate 43, a reinforcing plate 431, a fixed seat 44 and a clamping roller 45. The upper parts of the two L-shaped sliding frames 3 are slidably connected to the slider 41, and the upper parts of the two L-shaped sliding frames 3 are fixedly installed with cylinders B42 by bolts. Cylinder B is electrically connected to the control panel 32. The ends of the telescopic rods of the two cylinders B42 are fixedly connected to the tops of the adjacent sliders 41. The front sides of the two sliders 41 are fixedly connected to the L-shaped clamping plates 43 by bolts. Two reinforcing plates 431 for enhancing the strength of the L-shaped clamping plates 43 are provided on the two L-shaped clamping plates 43. Four fixed seats 44 are welded and fixed at intervals on the bottom of the L-shaped clamping plates 43. Four fixed seats 44 are also welded and fixed at intervals on the lower parts of the two L-shaped sliding frames 3. A clamping roller 45 is rotatably connected between two adjacent fixed seats 44 on the same side in the front-to-back direction, and the workpiece body 101 can be fixedly clamped between the four clamping rollers 45 on the same side in the left-right direction.

[0024] The driving assembly includes a motor A51, a pulley A52, a pulley B53 and a transmission belt 54. The motor A51 is fixedly installed on the side walls of two reinforcing plates 431 that are far away from each other by bolts. The output shaft of the motor A51 passes through the adjacent reinforcing plates 431, and the ends thereof are key-connected and fixed with the pulley A52. The middle parts of the four clamping rollers 45 located above are also key-connected and fixed with the pulley A52. The lower parts of the two L-shaped clamping plates 43 are each provided with a square opening. The two L-shaped clamping plates 43 are rotatably connected with the pulley B53 in the middle of the square opening. A transmission belt 54 is wound around the adjacent pulleys A52 and B53.

[0025] When using this embodiment, first place the workpiece body 101 to be welded on top of the two adjacent clamping rollers 45 located below and the slide 6 located on the same side. The slide 6 can lift the workpiece body 101, so that the staff does not need to manually lift the workpiece body 101, start the control panel 32, and the control panel 32 controls the cylinder B42 to start. The cylinder B42 drives the clamping roller 45 located above to move downward by pushing the slider 41, thereby clamping and fixing the workpiece body 101. At this time, the control panel 32 controls the cylinder B42 to close and start the cylinder A31 at the same time. The cylinder A31 pushes the two L-shaped mounting frames to move in a direction close to each other, thereby driving the end faces of the two workpiece bodies 101 to approach each other and fit together. The control panel 32 then controls the cylinder A31 to close, and the external welding equipment approaches. The end faces of the two workpiece bodies 101 are fitted together and welding processing begins. At this time, the control panel 32 starts the motor A51. The motor A51 drives the clamping roller 45 located above to rotate through the cooperation of the pulley A52, the pulley B53 and the transmission belt 54, thereby driving the workpiece body 101 to rotate. Since the motor A51 is the power source for the rotation of the workpiece body 101, the power is stable, so that the workpiece body 101 can rotate at a uniform speed, thereby making the welding quality higher. When a workpiece body 101 with a longer length needs to be processed, the two slides 6 can be slid away from each other to lift the end of the workpiece body 101 away from the clamping roller 45. This can avoid the deformation of the workpiece body 101 due to its excessive length, and the disturbance of the clamped end of the workpiece body 101 when it rotates, thereby affecting the welding quality.

[0026] It also includes an n-shaped mounting plate 71, a guide column 72, a screw 73, a motor B74 and a U-shaped baffle 75. The n-shaped mounting plate 71 is welded and fixed in the middle of the top of the bottom plate 1. The left side of the n-shaped mounting plate 71 is fixedly connected to the guide column 72, and the right side of the n-shaped mounting plate 71 is rotatably connected to the screw 73. The right side of the n-shaped mounting plate 71 is also fixed with a motor B74 by bolts, and the output shaft end of the motor B74 is fixedly connected to the lower end of the screw 73. A U-shaped baffle 75 is slidably arranged between the guide column 72 and the screw 73, and the U-shaped baffle is matched with the screw 73 by threads.

[0027] When installing the workpiece body 101, the workpiece body 101 is placed on the top of the clamping roller 45 and the slide plate 6, and then the workpiece body 101 is pushed so that its side is in contact with the U-shaped mounting plate 75, thereby positioning the initial position of the workpiece body 101, and the control panel 32 starts the cylinder B42 again to clamp and fix the workpiece body 101 through the clamping roller 45. At this time, the control panel 32 turns off the cylinder B42 and starts the motor B74 at the same time. The motor B74 drives the U-shaped baffle 75 to move downward through the screw 73, thereby separating the U-shaped baffle 75 from the workpiece body 101, and the control panel 32 starts the cylinder A31 again to push the two workpiece bodies 101 closer to each other. In this way, there is no need to manually position the initial position of the workpiece body 101, thereby improving the welding work efficiency.

[0028] The clamping rollers 45 are all provided with circular grooves, and the provision of the circular grooves increases the lateral friction between the clamping rollers 45 and the workpiece body 101 , thereby preventing the workpiece body 101 from lateral movement during the rotation process, thereby affecting the welding quality.

[0029] The connection points between the two slide plates 6 and the slide rail 2 are both configured as friction surfaces, thereby increasing the friction between the slide plates 6 and the slide rail 2 and preventing the slide plates 6 from sliding randomly.

Claims

1. An adjustable welding fixture, comprising a base plate, a slide rail, an L-shaped sliding frame, a cylinder A and a control panel, wherein the top of the base plate is symmetrically fixedly connected with the slide rail, two L-shaped sliding frames are slidably connected between the two slide rails, the top of the base plate is symmetrically fixedly installed with the cylinder A, the ends of the telescopic rods of the two cylinders A are respectively fixedly connected with the adjacent L-shaped sliding frames, and the control panel is fixedly installed in the middle of the top of the base plate, wherein the characteristics are: It also includes a clamping assembly, a workpiece body, a driving assembly and a slide plate. The clamping assembly is arranged on the L-shaped sliding frame, the workpiece body is arranged on the clamping assembly, the clamping assembly is used to clamp and fix the workpiece body, the clamping assembly is provided with a driving assembly for driving the workpiece body to rotate, and a slide plate for receiving the workpiece body is symmetrically slidably connected between the two slide rails.

2. The adjustable welding fixture according to claim 1, characterized in that: The clamping assembly includes a slider, a cylinder B, an L-shaped clamp, a reinforcement plate, a fixed seat and a clamping roller. The upper parts of the two L-shaped sliding frames are slidably connected to the sliders, the upper parts of the two L-shaped sliding frames are fixedly installed with cylinders B, the ends of the telescopic rods of the two cylinders B are fixedly connected to the tops of the adjacent sliders, the front sides of the two sliders are fixedly connected to the L-shaped clamps, two reinforcement plates are arranged on the two L-shaped clamps, the bottom of the L-shaped clamps are fixedly connected to four fixed seats at intervals, the lower parts of the two L-shaped sliding frames are also fixedly connected to four fixed seats at intervals, and clamping rollers are rotatably connected between two adjacent fixed seats on the same side in the front-to-back direction, and the workpiece body can be fixedly clamped between the four clamping rollers on the same side in the left-right direction.

3. The adjustable welding fixture according to claim 2, characterized in that: The driving assembly includes a motor A, a pulley A, a pulley B and a transmission belt. Motor A is installed on the side walls of two reinforcement plates that are far away from each other. The output shaft of motor A passes through the adjacent reinforcement plates, and its ends are fixedly connected to the pulley A. The middle parts of the four clamping rollers located above are also fixedly connected to the pulley A. Square openings are opened at the lower parts of the two L-shaped clamping plates. The two L-shaped clamping plates are rotatably connected to the pulley B in the middle of the square openings, and a transmission belt is wound around the adjacent pulleys A and B.

4. The adjustable welding fixture according to claim 3, characterized in that: It also includes an n-shaped mounting plate, a guide column, a screw, a motor B and a U-shaped baffle. The n-shaped mounting plate is fixedly connected to the middle of the top of the bottom plate, the left side of the n-shaped mounting plate is fixedly connected to the guide column, the right side of the n-shaped mounting plate is rotatably connected to the screw, and the motor B is also installed on the right side of the n-shaped mounting plate. The output shaft end of the motor B is fixedly connected to the lower end of the screw, and a U-shaped baffle is slidably arranged between the guide column and the screw.

5. The adjustable welding fixture according to claim 4, characterized in that: The clamping rollers are all provided with circular grooves.

6. The adjustable welding fixture according to claim 5, characterized in that: The connection points between the two slides and the slide rails are both arranged as friction surfaces, which can prevent the slides from sliding randomly.

Images