Multi-point synchronous welding fixing clamp for vehicle body repairing machine

Abstract

The utility model discloses a multi-point synchronous welding fixing clamp for a vehicle body repairing machine, which relates to the technical field of welding clamps and comprises an operating platform, supporting frames are symmetrically and fixedly connected to the bottom of the operating platform, a clamping mechanism is arranged at the top of the operating platform, and the clamping mechanism comprises a clamping assembly and a power assembly. The clamping assembly and the power assembly are used in cooperation. According to the multi-point synchronous welding fixing clamp for the vehicle body repairing machine, the clamping assembly and the power assembly are integrated, a two-way lead screw is adopted to drive a symmetrical rack-gear mechanism, synchronous reverse movement of the rotating plate is achieved, and therefore multiple sets of clamping plates are driven to be in linkage, uniformity and synchronism of clamping force are guaranteed, and the welding quality of the vehicle body repairing machine is improved. The bearing frame is additionally arranged, the anti-skid design is adopted, the workpiece stability is further improved, welding deformation is reduced, the structure is compact, operation is convenient, and the technical defects that a traditional clamp is poor in synchronism and difficult to adjust are effectively overcome.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a multi-point synchronous welding fixing fixture for a car body repair machine. Background Technology

[0002] In the process of vehicle body repair, welding fixtures are crucial equipment for ensuring the precise positioning and stability of the parts to be repaired. Traditional fixtures often employ single-point clamping or manual adjustment, which suffers from uneven clamping force and poor synchronization, leading to component displacement or deformation during welding and affecting repair quality. Furthermore, the adjustment mechanisms of existing fixtures are typically complex in structure and cumbersome to operate, making them difficult to adapt to vehicle body parts of different shapes or sizes, thus reducing repair efficiency.

[0003] Based on the aforementioned technologies, the applicant believes that although some multi-point clamping fixtures on the market can achieve fixation, they generally rely on independent drive sources or mechanical linkage designs, resulting in insufficient synchronization and difficulty in unifying clamping force. Manually adjustable fixtures rely on the operator's experience, have poor stability, and are difficult to meet the needs of high-precision repair. In response to the above problems, we have launched a multi-point synchronous welding and fixing fixture for car body repair machines. Utility Model Content

[0004] This utility model discloses a multi-point synchronous welding and fixing fixture for a car body repair machine, which aims to solve the technical problems of some multi-point clamping fixtures on the market that, although they can achieve fixation, generally rely on independent drive sources or mechanical linkage designs, resulting in insufficient synchronization, difficulty in unifying clamping force, and manual adjustment of fixtures that depend on the operator's experience, have poor stability, and are difficult to meet the needs of high-precision repair.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-point synchronous welding fixture for a car body repair machine includes an operating table. A support frame is symmetrically fixedly connected to the bottom of the operating table. A clamping mechanism is provided on the top of the operating table. The clamping mechanism includes a clamping component and a power component, which cooperate with each other. The clamping component includes two fixed discs symmetrically fixedly connected to the top of the operating table. A rotating shaft is rotatably connected inside each of the two fixed discs. A rotating plate is fixedly connected to the top of each of the two rotating shafts. A linkage plate is symmetrically fixedly connected to the outer sides of each of the two fixed discs. A dovetail groove is formed inside the linkage plate, and a sliding block is slidably connected inside the dovetail groove. A clamping plate is fixedly connected to the top of the sliding block. Connecting plates are rotatably connected to both ends of the two rotating plates, and the other end of the connecting plate is rotatably connected to the top of the sliding block.

[0007] By integrating clamping components and power components, and using a bidirectional screw-driven symmetrical rack-gear mechanism, the synchronous reverse movement of the rotating plate is achieved, thereby driving multiple sets of clamping plates to work together, ensuring the uniformity and synchronization of clamping force. The addition of a support frame and anti-slip design further improves workpiece stability and reduces welding deformation. This solution has a compact structure and is easy to operate, effectively solving the technical defects of traditional fixtures such as poor synchronization and difficulty in adjustment.

[0008] In a preferred embodiment, the power assembly includes an adjustment frame fixedly connected to the bottom side of the operating table. The adjustment frame has a clearance groove on its front side. A bidirectional lead screw is rotatably connected inside the adjustment frame. Displacement blocks are symmetrically meshed with the outer side of the bidirectional lead screw. Both displacement blocks extend to the outer side of the clearance groove and are fixedly connected to racks. Gears are fixedly connected to the bottom of both rotating shafts, and the gears mesh with the racks. A motor is fixedly connected to the outer side of the adjustment frame, and the output end of the motor extends into the adjustment frame and is fixedly connected to the bidirectional lead screw.

[0009] The power unit employs a bidirectional lead screw drive. A motor rotates the bidirectional lead screw, causing the displacement blocks to move synchronously in opposite directions. Through rack and pinion gear engagement, the rotation angle of the rotating shaft is precisely controlled, thus achieving synchronous opening and closing of the clamping plates. This structure simplifies the transmission mechanism, improves adjustment accuracy and response speed, reduces manual intervention, and enhances welding efficiency.

[0010] In a preferred embodiment, a support frame is fixedly connected to the top of the operating table and between the two fixed plates. The support frame is hollow and has an anti-fall groove on its top.

[0011] The support frame features a hollow design to reduce overall weight, while the anti-fall groove at the top prevents workpiece slippage and enhances the fixing effect. It is suitable for body parts of different shapes, improving versatility and safety.

[0012] In a preferred embodiment, the outer side of the clamping plate is fixedly connected with an anti-slip rubber strip for increasing friction.

[0013] Anti-slip rubber strips are added to the outside of the clamping plate to increase the friction with the workpiece, prevent the workpiece from shifting due to vibration or force during welding, and ensure welding accuracy.

[0014] In a preferred embodiment, a protective cover is fixedly connected to the outside of the motor, and heat dissipation slots are equidistantly provided inside the protective cover.

[0015] A protective cover is installed on the outside of the motor to prevent external dust or debris from affecting the motor's operation, and the heat dissipation slots enhance heat dissipation performance and extend the motor's service life.

[0016] In a preferred embodiment, a controller is fixedly connected to one side of the top of the control panel, and the motor is electrically connected to the controller.

[0017] The controller is electrically connected to the motor to achieve automated control. Operators can adjust the clamping force and speed through the controller, improving the convenience and safety of operation.

[0018] The multi-point synchronous welding fixture for a car body repair machine provided by this utility model has the following advantages:

[0019] Firstly, by integrating the clamping components and the power components, and using a bidirectional screw-driven symmetrical rack-gear mechanism, the synchronous reverse movement of the rotating plate is achieved, thereby driving multiple sets of clamping plates to work together, ensuring the uniformity and synchronization of clamping force. The addition of a support frame and anti-slip design further improves the stability of the workpiece and reduces welding deformation. This solution has a compact structure and is easy to operate, effectively solving the technical defects of traditional fixtures such as poor synchronization and difficulty in adjustment.

[0020] Secondly, the support frame features a hollow design, reducing overall weight. The anti-fall groove at the top prevents workpiece slippage, enhancing the fixing effect and making it suitable for various body parts, improving versatility and safety. Anti-slip rubber strips are added to the outside of the clamping plate to increase friction with the workpiece, preventing displacement due to vibration or force during welding and ensuring welding accuracy. A protective cover is installed on the outside of the motor to prevent external dust or debris from affecting its operation, and heat dissipation slots enhance heat dissipation performance, extending the motor's lifespan. The controller is electrically connected to the motor, enabling automated control. Operators can adjust the clamping force and speed via the controller, improving operational convenience and safety. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a multi-point synchronous welding and fixing fixture for a car body repair machine proposed in this utility model.

[0022] Figure 2 This is a three-dimensional bottom view of a multi-point synchronous welding and fixing fixture for a car body repair machine proposed in this utility model.

[0023] Figure 3 This is a three-dimensional schematic diagram of the clamping mechanism of a multi-point synchronous welding fixing fixture for a car body repair machine proposed in this utility model.

[0024] Figure 4 This is a three-dimensional bottom view of the clamping mechanism of a multi-point synchronous welding fixing fixture for a car body repair machine proposed in this utility model.

[0025] Figure 5 This utility model proposes a multi-point synchronous welding and fixing fixture for a car body repair machine. Figure 1 A magnified diagram of point A.

[0026] In the attached diagram: 1. Operating table; 2. Support frame; 31. Fixed plate; 32. Rotating shaft; 33. Rotating plate; 34. Linkage plate; 35. Dovetail groove; 36. Sliding block; 37. Clamping plate; 38. Connecting plate; 41. Adjusting frame; 42. Clearance groove; 43. Two-way lead screw; 44. Displacement block; 45. Rack; 46. Gear; 47. Motor; 5. Support frame; 6. Anti-fall groove; 7. Anti-slip rubber strip; 8. Protective cover; 9. Heat dissipation groove; 10. Controller. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] The multi-point synchronous welding fixture for a car body repair machine disclosed in this utility model is mainly used in welding fixture application scenarios.

[0029] Reference Figures 1-5A multi-point synchronous welding fixture for a car body repair machine includes an operating table 1. A support frame 2 is symmetrically fixedly connected to the bottom of the operating table 1. A clamping mechanism is provided on the top of the operating table 1. The clamping mechanism includes a clamping component and a power component. The clamping component and the power component work together. The clamping component includes two fixed disks 31. The two fixed disks 31 are symmetrically fixedly connected to the top of the operating table 1. A rotating shaft 32 is rotatably connected inside each of the two fixed disks 31. A rotating plate 33 is fixedly connected to the top of each of the two rotating shafts 32. A linkage plate 34 is symmetrically fixedly connected to the outer side of each of the two fixed disks 31. A dovetail groove 35 is opened inside the linkage plate 34. A sliding block 36 is slidably connected inside the dovetail groove 35. A clamping plate 37 is fixedly connected to the top of the sliding block 36. A connecting plate 38 is rotatably connected to both ends of each of the two rotating plates 33. The other end of the connecting plate 38 is rotatably connected to the top of the sliding block 36. The power assembly includes an adjustment frame 41, which is fixedly connected to the bottom side of the operating table 1. A clearance groove 42 is provided on the front of the adjustment frame 41. A double-acting lead screw 43 is rotatably connected inside the adjustment frame 41. Displacement blocks 44 are symmetrically meshed on the outer side of the double-acting lead screw 43. Both displacement blocks 44 extend to the outer side of the clearance groove 42 and are fixedly connected to racks 45. Gears 46 are fixedly connected to the bottom of both rotating shafts 32. Gears 46 and racks 45 are meshed together. A motor 47 is fixedly connected to the outer side of the adjustment frame 41. The output end of the motor 47 extends into the interior of the adjustment frame 41 and is fixedly connected to the double-acting lead screw 43.

[0030] In this embodiment, the motor 47 drives the bidirectional lead screw 43 to rotate, causing two displacement blocks 44 to move synchronously in opposite directions along the clearance groove 42. This causes the rack 45 to drive the gear 46 to rotate, which in turn drives the rotating shaft 32 to rotate. The rotating plate 33 rotates with the rotating shaft 32 and pushes the sliding block 36 to slide in the dovetail groove 35 through the connecting plate 38, causing the clamping plate 37 to move synchronously inward or outward, thus achieving multi-point synchronous clamping of the workpiece. By integrating the clamping assembly and the power assembly, and using the bidirectional lead screw 43 to drive the symmetrical rack-gear mechanism, the synchronous reverse movement of the rotating plate 33 is achieved, thereby driving multiple sets of clamping plates 37 to move in tandem, ensuring the uniformity and synchronization of the clamping force. The addition of the support frame 5 and the anti-slip design further improves the stability of the workpiece and reduces welding deformation. This solution has a compact structure and is easy to operate, effectively solving the technical defects of traditional fixtures such as poor synchronization and difficulty in adjustment.

[0031] In the above technical solution, considering that some multi-point clamping fixtures on the market can achieve fixation, they generally rely on independent drive sources or mechanical linkage designs, resulting in insufficient synchronization and difficulty in unifying clamping force. Manually adjustable fixtures rely on operator experience, have poor stability, and cannot meet the needs of high-precision repair, the specific operation is as follows:

[0032] Reference Figures 1-5In a preferred embodiment, a support frame 5 is fixedly connected to the top of the operating platform 1 and between the two fixed plates 31. The support frame 5 is hollow, and an anti-fall groove 6 is provided on the top of the support frame 5. An anti-slip rubber strip 7 for increasing friction is fixedly connected to the outer side of the clamping plate 37. A protective cover 8 is fixedly connected to the outer side of the motor 47, and heat dissipation grooves 9 are provided at equal intervals inside the protective cover 8. A controller 10 is fixedly connected to one side of the top of the operating platform 1, and the motor 47 is electrically connected to the controller 10.

[0033] In this embodiment: The support frame 5 adopts a hollow design to reduce the overall weight, while the anti-fall groove 6 on the top prevents the workpiece from slipping, enhancing the fixing effect. It is suitable for body parts of different shapes, improving versatility and safety. Anti-slip rubber strips 7 are added to the outer side of the clamping plate 37 to increase friction with the workpiece, preventing workpiece displacement due to vibration or force during welding and ensuring welding accuracy. A protective cover 8 is installed on the outer side of the motor 47 to prevent external dust or debris from affecting motor operation, and the heat dissipation groove 9 enhances heat dissipation performance and extends the motor's service life. The controller 10 is electrically connected to the motor 47 to achieve automated control. Operators can adjust the clamping force and speed through the controller 10, improving operational convenience and safety.

[0034] Working principle: When this fixture is in operation, the car body sheet is first placed between the clamping plates 37. The motor 47 drives the bidirectional lead screw 43 to rotate, which drives the two displacement blocks 44 to move synchronously in opposite directions along the clearance groove 42, causing the rack 45 to drive the gear 46 to rotate, which in turn drives the rotating shaft 32 to rotate. The rotating plate 33 rotates with the rotating shaft 32 and pushes the sliding block 36 to slide in the dovetail groove 35 through the connecting plate 38, so that the clamping plate 37 moves synchronously inward or outward, realizing multi-point synchronous clamping of the workpiece. The support frame 5 provides auxiliary support, the anti-slip rubber strip 7 enhances the clamping stability, the protective cover 8 and the heat dissipation groove 9 ensure the long-term stable operation of the motor 47, and the controller 10 realizes precise control. The overall structure is compact and easy to operate, and it is suitable for high-precision car body repair welding operations.

[0035] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A multi-point synchronous welding fixture for a car body repair machine, comprising an operating table (1), characterized in that: The bottom of the operating table (1) is symmetrically fixedly connected with a support frame (2), and the top of the operating table (1) is provided with a clamping mechanism. The clamping mechanism includes a clamping component and a power component, which are used in cooperation with each other. The clamping assembly includes two fixed disks (31), which are symmetrically fixedly connected to the top of the operating table (1). The interior of each fixed disk (31) is rotatably connected to a rotating shaft (32), and the top of each rotating shaft (32) is fixedly connected to a rotating plate (33). The exterior of each fixed disk (31) is symmetrically fixedly connected to a linkage plate (34). The interior of the linkage plate (34) is provided with a dovetail groove (35), and a sliding block (36) is slidably connected inside the dovetail groove (35). The top of the sliding block (36) is fixedly connected to a clamping plate (37). Both ends of each rotating plate (33) are rotatably connected to a connecting plate (38), and the other end of the connecting plate (38) is rotatably connected to the top of the sliding block (36).

2. The multi-point synchronous welding fixture for a car body repair machine according to claim 1, characterized in that: The power assembly includes an adjustment frame (41), which is fixedly connected to the bottom side of the operating table (1). The front of the adjustment frame (41) has a clearance groove (42). A double-acting lead screw (43) is rotatably connected inside the adjustment frame (41). Displacement blocks (44) are symmetrically meshed on the outside of the double-acting lead screw (43). Both displacement blocks (44) extend to the outside of the clearance groove (42) and are fixedly connected to racks (45). Gears (46) are fixedly connected to the bottom of both rotating shafts (32). The gears (46) and racks (45) are meshed. A motor (47) is fixedly connected to the outside of the adjustment frame (41). The output end of the motor (47) extends into the interior of the adjustment frame (41) and is fixedly connected to the double-acting lead screw (43).

3. The multi-point synchronous welding fixing fixture for a car body repair machine according to claim 1, characterized in that: A support frame (5) is fixedly connected to the top of the operating table (1) and between the two fixed plates (31). The support frame (5) is hollow and has an anti-fall groove (6) on its top.

4. The multi-point synchronous welding fixture for a car body repair machine according to claim 1, characterized in that: The outer side of the clamping plate (37) is fixedly connected with an anti-slip rubber strip (7) to increase friction.

5. A multi-point synchronous welding fixture for a car body repair machine according to claim 2, characterized in that: A protective cover (8) is fixedly connected to the outside of the motor (47), and heat dissipation grooves (9) are provided at equal intervals inside the protective cover (8).

6. A multi-point synchronous welding fixture for a car body repair machine according to claim 2, characterized in that: A controller (10) is fixedly connected to one side of the top of the operating table (1), and the motor (47) is electrically connected to the controller (10).

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