Quick positioning clamp for welding point of frame

Abstract

The utility model relates to the technical field of frame welding, in particular to a frame welding point quick positioning clamp which comprises a working plate, a control panel is installed on the front surface of the working plate, a fixed plate and a movable plate are sequentially installed on the upper surface of the working plate from front to back, and a first connecting block is fixedly connected to the front surface of the movable plate. A first clamping block is installed at the end, away from the moving plate, of the first connecting block, a threaded column is installed in the first clamping block in a threaded mode, and an abutting ring is installed on the front surface of the threaded column. The stability of the moving plate in the moving process is ensured through the arrangement of the sliding grooves and the sliding blocks, then when the outer surface of the first clamping block abuts against the outer surface of the other set of frames, welding points of the two sets of frames are aligned at the moment, then a threaded column continues to be screwed in the first clamping block, and then the two sets of frames are fixed. And the abutting ring stably abuts against the outer surface of the other frame, so that the two frames can be stably positioned.

Description

A quick positioning fixture for chassis welding points Technical Field

[0001] This utility model relates to the field of vehicle frame welding technology, specifically a quick positioning fixture for vehicle frame welding points. Background Technology

[0002] The chassis is a frame structure that spans the front and rear axles of a car. Positioning fixtures are used when welding the chassis.

[0003] In response, existing patent publication number CN217316603U discloses an automatic positioning fixture for vehicle frame welding, including a support platform. A mechanism box is fixedly connected to the bottom surface of the support platform. Two fixing plates are fixedly connected to the inner bottom wall of the mechanism box. Electric push rods are hinged to the opposite sides of the two fixing plates via pins. The telescopic ends of the two electric push rods are hinged to connecting plates via connecting shafts. Two through holes are formed on the upper surface of the support platform, and two protective covers are fixedly connected to the upper surface of the support platform. The top ends of the two connecting plates penetrate the through holes and extend into the interior of the protective covers. This invention achieves the effect of pushing two clamping blocks above the support platform, causing the two clamping blocks to position and clamp the vehicle frame components above the support platform. Therefore, the fixture has an automatic positioning and clamping function, solving the problem that current fixtures typically require manual operation for slow positioning of vehicle frame components, and improving the positioning efficiency during vehicle frame welding.

[0004] However, in actual use, when welding the frame, the inconsistent size and shape of the frame make it impossible to position the frame as a whole using a set of flat positioning plates. In addition, the level of the connected frames needs to be checked before welding. If they are not level, it will affect the welding quality of the frame. Therefore, improving and perfecting the above-mentioned problems has become an urgent issue to be solved. Summary of the Invention

[0005] The purpose of this utility model is to provide a quick positioning fixture for frame welding points, in order to solve the problem mentioned in the background art that when welding frame welding points are being performed, due to the inconsistent size and shape of the frame, the frame cannot be positioned as a whole by a set of flat positioning plates. At the same time, it is also necessary to check whether the connected frames are level before welding, as being in an uneven state will affect the welding quality of the frame.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick positioning fixture for vehicle frame welding points, comprising a work plate, a control panel mounted on the front surface of the work plate, a fixed plate and a moving plate mounted sequentially from front to back on the upper surface of the work plate, a first connecting block fixedly connected to the front surface of the moving plate, a first clamping block mounted on the end of the first connecting block away from the moving plate, a threaded post mounted on the internal thread of the first clamping block, an abutment ring mounted on the front surface of the threaded post, a sliding groove opened inside the work plate, and a sliding block mounted inside the sliding groove.

[0007] Preferably, a guide rod is installed inside the sliding block, the sliding block and the sliding groove are adapted to each other, a cylinder body is installed on the back of the moving plate, and an mounting block is installed at the end of the cylinder body away from the moving plate, and the mounting block is installed on the upper surface of the working plate.

[0008] Preferably, a second connecting block is installed on the back of the fixing plate, and a second clamping block is installed on the end of the second connecting block away from the fixing plate.

[0009] Preferably, the top surface of the second clamping block is provided with a sliding groove, a sliding frame is installed inside the sliding groove, and a telescopic rod is installed inside the sliding frame.

[0010] Preferably, a top block is installed on the top surface of the telescopic rod, and a side block is installed on the back of the top block.

[0011] Preferably, the upper surface of the working plate is provided with a moving groove, and a moving plate is slidably installed inside the moving groove.

[0012] Preferably, a telescopic cylinder is installed on the right side surface of the moving groove, a cylinder body is installed on the outer surface of the telescopic cylinder, and a detection contact block is installed at the end of the telescopic cylinder away from the moving groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This quick-positioning fixture for the welding points of the vehicle frame, consisting of a moving plate, a fixed plate, a first connecting block, a first clamping block, a threaded post, an abutment ring, a sliding groove, a sliding block, a guide rod, a second connecting block, a second clamping block, and a sliding frame, is used in the following way: First, two sets of vehicle frames are placed on the surface of the working plate, with the outer surface of one set of vehicle frames abutting against the back of the second clamping block. Then, the outer surface of one set of vehicle frames is limited by turning the threaded post inside the sliding frame. Next, the cylinder body is activated, causing the moving plate to move forward. The moving plate then moves the first connecting block and the first clamping block simultaneously, through the sliding... The groove and sliding block ensure the stability of the moving plate during movement. When the outer surface of the first clamping block abuts against the outer surface of the other frame, the welding points of the two frames are aligned. Then, the threaded post inside the first clamping block is screwed until the abutting ring stably abuts against the outer surface of the other frame, thereby enabling the two frames to be stably positioned. Furthermore, the screwable threaded post and abutting ring inside the first and second clamping blocks can position frames of different shapes and sizes, ensuring that the fixture in this application can be adapted to weld frames of different sizes, demonstrating the practicality of the design.

[0015] 2. This frame welding point quick positioning fixture, through the setting of a moving groove, a telescopic cylinder, a detection contact block, and a cylinder body, after the two sets of frames are aligned, moves the moving groove inside the moving groove to the outer surface of the frame, and then the telescopic cylinder moves forward and backward until the right side of the detection contact block abuts against the left side of the frame. Then the moving groove slides forward inside the moving groove. If the frame is not in a level position, the inner cylinder of the telescopic cylinder will move. The distance the inner cylinder moves inside the telescopic cylinder can be observed through the cylinder body. At the same time, if the detection contact block can also move towards the frame surface during the movement, it can also prove that the frame is not level. Therefore, by checking whether the frame is level before welding, the quality of welding can be greatly improved. Attached Figure Description

[0016] Figure 1 is a three-dimensional schematic diagram of the structure of this utility model;

[0017] Figure 2 is a three-dimensional schematic diagram of the structure of the motion plate and the first clamping block of this utility model;

[0018] Figure 3 is a three-dimensional schematic diagram of the fixed plate and telescopic rod structure of this utility model;

[0019] Figure 4 is a three-dimensional schematic diagram of the moving groove and detection contact block structure of this utility model.

[0020] In the diagram: 1. Working plate; 2. Control panel; 3. Motion plate; 4. Fixing plate; 5. First connecting block; 6. First clamping block; 7. Threaded column; 8. Abutment ring; 9. Sliding groove; 10. Sliding block; 11. Guide rod; 12. Second connecting block; 13. Second clamping block; 14. Sliding frame; 15. Telescopic rod; 16. Top block; 17. Side block; 18. Moving groove; 19. Moving plate; 20. Telescopic cylinder; 21. Detection abutment block; 22. Cylinder body; 23. Mounting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 for one embodiment of this utility model:

[0023] A quick positioning fixture for chassis welding points is disclosed in this application. The control panel 2, telescopic rod 15, and cylinder body 22 used in this application are all commercially available products. Their principles and connection methods are well-known prior art and will not be elaborated upon here. The fixture includes a work plate 1, with the control panel 2 mounted on its front surface. A fixed plate 4 and a moving plate 3 are sequentially mounted on the upper surface of the work plate 1 from front to back. A first connecting block 5 is fixedly connected to the front surface of the moving plate 3. A first clamping block 6 is mounted on the end of the first connecting block 5 away from the moving plate 3. A threaded post 7 is installed on the internal thread of the first clamping block 6, and an abutment ring 8 is mounted on the front surface of the threaded post 7. The working plate 1 has a sliding groove 9 inside, a sliding block 10 inside the sliding groove 9, and a guide rod 11 inside the sliding block 10. The sliding block 10 and the sliding groove 9 are mutually adapted. A cylinder body 22 is installed on the back of the moving plate 3. An installation block 23 is installed on the end of the cylinder body 22 away from the moving plate 3. The installation block 23 is installed on the upper surface of the working plate 1. A second connecting block 12 is installed on the back of the fixed plate 4. A second clamping block 13 is installed on the end of the second connecting block 12 away from the fixed plate 4. A sliding groove is opened on the top surface of the second clamping block 13. A sliding frame 14 is installed inside the sliding groove. A telescopic rod 15 is installed inside the sliding frame 14. A top surface of the telescopic rod 15 is installed. Block 16, a side block 17 is installed on the back of the top block 16, a moving groove 18 is opened on the upper surface of the working plate 1, a moving plate 19 is slidably installed inside the moving groove 18, a telescopic cylinder 20 is installed on the right side surface of the moving groove 18, a cylinder body 22 is installed on the outer surface of the telescopic cylinder 20, and a detection contact block 21 is installed at the end of the telescopic cylinder 20 away from the moving groove 18. First, two sets of frames are placed on the surface of the working plate 1, and the outer surface of one set of frames abuts against the back of the second clamping block 13. Then, the outer surface of one set of frames is limited by turning the threaded column 7 inside the sliding frame 14. Then, the moving plate 3 is moved forward by starting the cylinder body 22. The moving plate 3 will... The first connecting block 5 and the first clamping block 6 move simultaneously. The sliding groove 9 and the sliding block 10 ensure the stability of the moving plate 3 during movement. When the outer surface of the first clamping block 6 abuts against the outer surface of the other frame, the welding points of the two frames are aligned. Then, the threaded post 7 is screwed inside the first clamping block 6 until the contact ring 8 is stably abutting against the outer surface of the other frame, thereby stably positioning the two frames. Through the screwable threaded post 7 and contact ring 8 inside the first clamping block 6 and the second clamping block 13, frames of different shapes and sizes can be positioned, ensuring that the fixture in this application can be adapted to weld frames of different sizes.After the two frames are aligned, the moving groove 18 is moved inside the moving groove 18 to the outer surface of the frame. Then, the telescopic cylinder 20 is moved forward and backward until the right side of the detection contact block 21 contacts the left side of the frame. Then, the moving groove 18 is slid forward inside the moving groove 18. If the frame is not level, the inner cylinder of the telescopic cylinder 20 will move. The distance the inner cylinder of the telescopic cylinder 20 moves inside the telescopic cylinder 20 can be observed through the cylinder body 22. At the same time, if the detection contact block 21 can also move towards the surface of the frame during the movement, it can also prove that the frame is not level. Therefore, by checking whether the frame is level before welding, the quality of welding can be greatly improved.

[0024] The telescopic cylinder 20 consists of an outer cylinder and an inner cylinder. The outer cylinder is installed on the right side surface of the moving groove 18 and is transparent. The movement of the inner cylinder inside the outer cylinder can detect whether the contact block 21 is stably contacting the outer surface of the frame. At the same time, the telescopic rod 15 is connected to an external power source and its extension and retraction are controlled by external equipment.

[0025] Working principle: When the operator uses this device, first connect the device to an external power source to provide power support. First, place two sets of frames on the surface of the working plate 1, with the outer surface of one set of frames abutting against the back of the second clamping block 13. Then, limit the outer surface of one set of frames by turning the threaded column 7 inside the sliding frame 14. Then, start the cylinder body 22 to drive the moving plate 3 forward. The moving plate 3 will drive the first connecting block 5 and the first clamping block 6 to move simultaneously. The sliding groove 9 and the sliding block 10 ensure the stability of the moving plate 3 during movement. Then, when the outer surface of the first clamping block 6 abuts against the outer surface of the other set of frames, align the welding points of the two sets of frames. Then, continue to turn the threaded column 7 inside the first clamping block 6 until the contact ring 8 stably abuts against the outer surface of the other set of frames, thereby stably positioning the two sets of frames. And through the screwable threaded column 7 and contact ring 8 inside the first clamping block 6 and the second clamping block 13, frames of different shapes and sizes can be positioned.

[0026] After the two sets of frames are aligned, the moving groove 18 is moved inside the moving groove 18 to the outer surface of the frame. Then, the telescopic cylinder 20 is extended and retracted until the right side of the detection contact block 21 contacts the left side of the frame. Then, the moving groove 18 is slid forward inside the moving groove 18. If the frame is not in a horizontal position, the inner cylinder of the telescopic cylinder 20 will move. The distance the inner cylinder of the telescopic cylinder 20 moves inside the telescopic cylinder 20 can be observed through the cylinder body 22. At the same time, if the detection contact block 21 can also move towards the surface of the frame during the movement, it can also prove that the frame is not horizontal at this time. The above is the working principle of this utility model.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A quick positioning fixture for vehicle frame welding points, comprising a work plate (1), wherein a control panel (2) is mounted on the front surface of the work plate (1), characterized in that: The upper surface of the working plate (1) is sequentially equipped with a fixed plate (4) and a moving plate (3) from front to back. The front surface of the moving plate (3) is fixedly connected to a first connecting block (5). A first clamping block (6) is installed at the end of the first connecting block (5) away from the moving plate (3). A threaded post (7) is installed in the internal thread of the first clamping block (6). An abutment ring (8) is installed on the front surface of the threaded post (7). A sliding groove (9) is opened inside the working plate (1). A sliding block (10) is installed inside the sliding groove (9).

2. The quick positioning fixture for vehicle frame welding points according to claim 1, characterized in that: The sliding block (10) is equipped with a guide rod (11), the sliding block (10) and the sliding groove (9) are adapted to each other, the back of the motion plate (3) is equipped with a cylinder body (22), the end of the cylinder body (22) away from the motion plate (3) is equipped with an installation block (23), and the installation block (23) is installed on the upper surface of the work plate (1).

3. The quick positioning fixture for vehicle frame welding points according to claim 1, characterized in that: A second connecting block (12) is installed on the back of the fixing plate (4), and a second clamping block (13) is installed on the end of the second connecting block (12) away from the fixing plate (4).

4. A quick positioning fixture for chassis welding points according to claim 3, characterized in that: The top surface of the second clamping block (13) is provided with a sliding groove, and a sliding frame (14) is installed inside the sliding groove. A telescopic rod (15) is installed inside the sliding frame (14).

5. A quick positioning fixture for chassis welding points according to claim 4, characterized in that: A top block (16) is installed on the top surface of the telescopic rod (15), and a side block (17) is installed on the back of the top block (16).

6. A quick positioning fixture for chassis welding points according to claim 1, characterized in that: The upper surface of the working plate (1) is provided with a moving groove (18), and a moving plate (19) is slidably installed inside the moving groove (18).

7. A quick positioning fixture for chassis welding points according to claim 6, characterized in that: A telescopic cylinder (20) is installed on the right side surface of the moving groove (18), and a cylinder body (22) is installed on the outer surface of the telescopic cylinder (20). A detection contact block (21) is installed at the end of the telescopic cylinder (20) away from the moving groove (18).

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