Translation in-place locking mechanism

Abstract

The utility model relates to a translation in-place locking mechanism which comprises a connecting seat, a guide seat and a limiting seat which are sequentially arranged from top to bottom, a telescopic driving mechanism is fixedly arranged on the connecting seat, and a first mounting structure is arranged on the side wall of the connecting seat; the lower end of the telescopic driving mechanism is connected with a vertical locking pin through a connector, the locking pin penetrates through the guide base and is in sliding fit with the guide base, and a second mounting structure is arranged on the side wall of the guide base. A limiting groove is formed in the limiting seat, and the locking pin can extend into the limiting groove; and a third mounting structure is arranged on the limiting seat. After the BASE bottom plate is horizontally moved in place, the BASE bottom plate enters the limiting groove of the limiting seat, the telescopic driving mechanism pushes the locking pin to move downwards, the locking pin is inserted into the through hole in the BASE bottom plate, and therefore the BASE bottom plate is effectively positioned, horizontal shaking of the BASE bottom plate in the welding process is prevented, and the welding quality is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of welding jigs, in particular to a translation-in-place locking mechanism. Background Art

[0002] During the assembly welding process of an automobile body, it is necessary to weld the BASE bottom plate to the vehicle body. After the BASE bottom plate is translated into place, it is easy to shake. Therefore, a translation-in-place locking mechanism is needed to lock the BASE bottom plate to prevent the position of the BASE bottom plate from changing and ensure the welding accuracy. At present, there are high-precision and high-automation welding jigs and welding devices on the market that can accurately position and weld the BASE bottom plate and the vehicle body, but the cost is high, and it is difficult for small and medium-sized enterprises with relatively low output and relatively small investment funds to afford. It is necessary for manufacturers to reasonably plan and design according to actual needs, while ensuring product quality, make rational use of existing funds and investment to minimize cost expenditures, and obtain the same use effect. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a translation-in-place locking mechanism, which has a relatively simple structure, low implementation cost, and can effectively lock the BASE bottom plate to prevent the position of the BASE bottom plate from changing during the welding process.

[0004] To solve the above problems, the technical solution adopted by the utility model is: a translation-in-place locking mechanism, which includes a connecting seat, a guiding seat, and a limiting seat arranged in sequence from top to bottom. A telescopic driving mechanism is fixedly arranged on the connecting seat, and a first mounting structure is arranged on the side wall of the connecting seat; the lower end of the telescopic driving mechanism is connected with a vertical locking pin through a joint, the locking pin penetrates through the guiding seat and is in sliding fit with the guiding seat, and a second mounting structure is arranged on the side wall of the guiding seat; a limiting groove is arranged on the limiting seat, and the locking pin can extend into the limiting groove; a third mounting structure is arranged on the limiting seat.

[0005] Further, the first mounting structure, the second mounting structure, and the third mounting structure are all a plurality of bolts.

[0006] Further, it further includes a vertically arranged guiding plate. The upper end of the guiding plate is fixedly connected with the side wall of the connecting seat, and the lower end of the guiding plate is fixedly connected with the side wall of the guiding seat. A strip-shaped guiding hole is arranged on the guiding plate, the length direction of the guiding hole is the vertical direction, a guiding shaft is arranged on the side wall of the upper end of the locking pin, and the guiding shaft penetrates through the guiding hole and is in sliding fit with the guiding hole.

[0007] Further, an installation block is provided on the upper side wall of the locking pin. The installation block includes a first plate body and a second plate body distributed in an L shape. The first plate body is fixedly connected to the upper side wall of the locking pin. An installation hole is provided on the second plate body, and the guiding shaft is installed in the installation hole through a rolling bearing.

[0008] Further, the locking pin includes a pin body. On both sides of the upper end surface of the pin body, there are vertical connecting plates. At the upper ends of the connecting plates, there are clamping plates perpendicular to the connecting plates. There is a spacing between the clamping plates and the upper end surface of the pin body. The joint includes an upper connecting column and a lower connecting column. The upper connecting column is fixedly connected to the telescopic driving mechanism. On both side walls of the lower connecting column, there are clamping grooves, and the clamping plates are clamped into the clamping grooves.

[0009] Further, a frustum-shaped guiding head is provided at the lower end of the locking pin.

[0010] Further, the telescopic driving mechanism is a cylinder.

[0011] Further, the telescopic driving mechanism is connected to the connecting seat through bolts.

[0012] The beneficial effects of the present utility model are as follows: After the BASE bottom plate is translated in place, the BASE bottom plate enters the limiting groove of the limiting seat. The telescopic driving mechanism pushes the locking pin downward, so that the locking pin is inserted into the through hole on the BASE bottom plate. Thus, the BASE bottom plate is effectively positioned, preventing the BASE bottom plate from horizontally shaking during the welding process and ensuring the welding quality. In addition, the structure of the present utility model is simple, with low cost and low implementation difficulty. Description of the Drawings

[0013] Figure 1 is the overall schematic diagram of the present utility model;

[0014] Figure 2 is the schematic diagram of the locking pin;

[0015] Figure 3 is the schematic diagram of the joint;

[0016] Figure 4 is the schematic diagram of the installation block;

[0017] Reference numerals: 1 - telescopic driving mechanism; 2 - connecting seat; 3 - guiding seat; 4 - locking pin; 41 - pin body; 42 - connecting plate; 43 - clamping plate; 44 - guiding head; 5 - joint; 51 - upper connecting column; 52 - lower connecting column; 53 - clamping groove; 6 - limiting seat; 7 - first installation structure; 8 - second installation structure; 9 - limiting groove; 10 - third installation structure; 11 - guiding plate; 12 - guiding hole; 13 - guiding shaft; 14 - installation block. Detailed Embodiments

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] A plurality of through holes are provided on the BASE bottom plate, and the axial direction of the through holes is the vertical direction. During welding, the vehicle body contacts the upper surface of the BASE bottom plate, and the BASE bottom plate may experience horizontal shaking or vibration (i.e., shaking or vibration in all directions) resulting in inaccurate positioning.

[0020] The translation-in-place locking mechanism of the present invention, as Figure 1 shown, includes a connecting seat 2, a guiding seat 3, and a limiting seat 6 arranged in sequence from top to bottom. A telescopic driving mechanism 1 is fixedly provided on the connecting seat 2, and a first mounting structure 7 is arranged on the side wall of the connecting seat 2; the lower end of the telescopic driving mechanism 1 is connected to a vertical locking pin 4 through a joint 5. A through hole vertically penetrating the guiding seat 3 is provided on the guiding seat 3, and the locking pin 4 is located in the through hole, and the locking pin 4 penetrates through the guiding seat 3 and is slidably engaged with the guiding seat 3. A second mounting structure 8 is arranged on the side wall of the guiding seat 3; a limiting groove 9 is provided on the limiting seat 6, and the locking pin 4 can extend into the limiting groove 9; a third mounting structure 10 is provided on the limiting seat 6.

[0021] The connecting seat 2 is used to mount the telescopic driving mechanism 1, and the telescopic driving mechanism 1 can be telescoped to drive the locking pin 4 to move up and down, and at the same time provide locking power. The locking pin 4 is used to position the BASE bottom plate to prevent the BASE bottom plate from moving in the horizontal direction. The guiding seat 3 is used to guide and position the locking pin 4 to ensure the stable up and down movement of the locking pin 4. The joint 5 is used to connect the locking pin 4 and the telescopic driving mechanism 1 to transmit power. The limiting seat 6 is used to limit the BASE bottom plate. During welding, the edge of the BASE bottom plate can be translated into the limiting groove 9 of the limiting seat 6 to limit the BASE bottom plate, playing an auxiliary positioning role. The limiting seat 6 cooperates with the locking pin 4 to effectively prevent the BASE bottom plate from shaking, thus ensuring welding accuracy. The first mounting structure 7, the second mounting structure 8, and the third mounting structure 10 can be connected to the vehicle body welding tooling or welding device, so that the positions of the connecting seat 2, the guiding seat 3, and the limiting seat 6 are fixed. In addition, the first mounting structure 7, the second mounting structure 8, and the third mounting structure 10 can also be connected to an L-shaped mounting bracket, so as to integrate the translation-in-place locking mechanism onto the mounting bracket, and then fixedly install the mounting bracket onto the vehicle body welding tooling or welding device.

[0022] When in use, multiple translation-in-place locking mechanisms of the present utility model can be used to position the BASE bottom plate simultaneously. Specifically, 4 translation-in-place locking mechanisms can be adopted, and two translation-in-place locking mechanisms are respectively arranged at both side edges of the BASE bottom plate. After the BASE bottom plate is translated in place, the edge part of the BASE bottom plate enters the limit groove 9, and then the telescopic drive mechanism 1 is used to push the locking pin 4 downward until the lower end of the locking pin 4 enters the through hole on the BASE bottom plate, so as to position the BASE bottom plate, prevent the BASE bottom plate from horizontally shaking, and ensure the accuracy of the welding position. After welding is completed, the telescopic drive mechanism 1 drives the locking pin 4 to reset upward.

[0023] In the present utility model, the first mounting structure 7, the second mounting structure 8 and the third mounting structure 10 are all multiple bolts. The bolt connection is convenient for disassembly and assembly, so as to facilitate the maintenance and replacement of components.

[0024] The present utility model further includes a vertically arranged guide plate 11. The upper end of the guide plate 11 is fixedly connected to the side wall of the connecting seat 2 through multiple bolts, and the lower end of the guide plate 11 is fixedly connected to the side wall of the guide seat 3 through multiple bolts. A strip-shaped guide hole 12 is arranged on the guide plate 11. The length direction of the guide hole 12 is the vertical direction. A guide shaft 13 is arranged on the upper end side wall of the locking pin 4. The guide shaft 13 penetrates through the guide hole 12 and is in sliding fit with the guide hole 12. The guide plate 11 plays a role in assisting guidance and limiting the locking pin 4. When the locking pin 4 moves up and down, it drives the guide shaft 13 to slide up and down along the guide hole 12, further ensuring the stable up and down movement of the locking pin 4. In addition, the guide hole 12 can limit the guide shaft 13. When the guide shaft 13 reaches the lower end of the guide hole 12, it cannot continue to slide downward. When the guide shaft 13 reaches the upper end of the guide hole 12, it cannot continue to slide upward, thereby limiting the moving distance of the guide shaft 13. Since the guide shaft 13 is fixedly connected to the locking pin 4, the moving distance of the locking pin 4 is also limited, so that the locking pin 4 can only move within a set height range.

[0025] In the present utility model, an installation block 14 is arranged on the upper end side wall of the locking pin 4. The installation block 14 is as Figure 4 shown, including a first plate body and a second plate body distributed in an L shape. The first plate body is fixedly connected to the upper end side wall of the locking pin 4 through screws. An installation hole is arranged on the second plate body, and the guide shaft 13 is installed in the installation hole through a rolling bearing. The diameter of the guide shaft 13 is adapted to the width of the guide hole 12, so that the outer wall of the guide shaft 13 can contact the inner wall of the guide hole 12. When the guide shaft 13 slides in the guide hole 12, the guide shaft 13 can rotate, so that the friction between the guide shaft 13 and the inner wall of the guide hole 12 is rolling friction, and the friction force is small, which helps to slow down the wear of the inner wall of the guide hole 12 and the guide shaft 13.

[0026] In the present utility model, the locking pin 4 is as follows Figure 2 shown, including a pin body 41. On both sides of the upper end surface of the pin body 41, vertical connecting plates 42 are provided. At the upper end of the connecting plate 42, a clamping plate 43 perpendicular to the connecting plate 42 is provided. There is a spacing between the clamping plate 43 and the upper end surface of the pin body 41. The clamping plate 43, the connecting plate 42, and the pin body 41 can be integrally formed. The joint 5 is as follows Figure 3 shown, including an upper connecting column 51 and a lower connecting column 52. The upper connecting column 51 and the lower connecting column 52 are integrally formed. The upper connecting column 51 is fixedly connected to the telescopic driving mechanism 1. On both side walls of the lower connecting column 52, clamping grooves 53 are provided, and the clamping plate 43 is snapped into the clamping grooves 53.

[0027] In order to facilitate the lower end of the locking pin 4 to be quickly inserted into the through hole on the BASE bottom plate, a frustum-shaped guiding head 44 is provided at the lower end of the locking pin 4. The diameter of the lower end of the guiding head 44 is smaller than its upper end diameter, and the diameter of the lower end of the guiding head 44 is smaller than the diameter of the through hole on the BASE bottom plate. Therefore, even if there is a certain deviation in the horizontal position of the BASE bottom plate, the guiding head 44 can smoothly enter the through hole on the BASE bottom plate. The diameter of the pin body 41 is adapted to the diameter of the through hole on the BASE bottom plate. When there is a deviation in the horizontal position of the BASE bottom plate, during the process that the guiding head 44 enters the through hole and continues to move downward, the position of the BASE bottom plate can be automatically corrected.

[0028] In the present utility model, the telescopic driving mechanism 1 is a cylinder. Of course, devices such as hydraulic cylinders can also be used. The telescopic driving mechanism 1 is connected to the connecting seat 2 through bolts.

[0029] In summary, the translation-in-place locking mechanism of the present utility model has a relatively simple structure, low manufacturing cost, can be implemented by small and medium-sized enterprises, and can ensure the welding position accuracy between the vehicle body and the BASE bottom plate.

[0030] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. The translation-in-place locking mechanism is characterized in that: It includes a connecting seat (2), a guiding seat (3) and a limiting seat (6) arranged in sequence from top to bottom. A telescopic driving mechanism (1) is fixedly arranged on the connecting seat (2), and a first mounting structure (7) is arranged on the side wall of the connecting seat (2); the lower end of the telescopic driving mechanism (1) is connected with a vertical locking pin (4) through a joint (5). The locking pin (4) penetrates through the guiding seat (3) and is in sliding fit with the guiding seat (3). A second mounting structure (8) is arranged on the side wall of the guiding seat (3); a limiting groove (9) is arranged on the limiting seat (6), and the locking pin (4) can extend into the limiting groove (9); a third mounting structure (10) is arranged on the limiting seat (6).

2. The translation-in-place locking mechanism according to claim 1, characterized in that: The first mounting structure (7), the second mounting structure (8) and the third mounting structure (10) are all a plurality of bolts.

3. The translation-in-place locking mechanism according to claim 1, characterized in that: It further includes a vertically arranged guiding plate (11). The upper end of the guiding plate (11) is fixedly connected with the side wall of the connecting seat (2), and the lower end of the guiding plate (11) is fixedly connected with the side wall of the guiding seat (3). A strip-shaped guiding hole (12) is arranged on the guiding plate (11). The length direction of the guiding hole (12) is the vertical direction. A guiding shaft (13) is arranged on the upper end side wall of the locking pin (4). The guiding shaft (13) penetrates through the guiding hole (12) and is in sliding fit with the guiding hole (12).

4. The translation-in-place locking mechanism according to claim 3, wherein: An installation block (14) is arranged on the upper end side wall of the locking pin (4). The installation block (14) includes a first plate body and a second plate body distributed in an L shape. The first plate body is fixedly connected with the upper end side wall of the locking pin (4). An installation hole is arranged on the second plate body, and the guiding shaft (13) is installed in the installation hole through a rolling bearing.

5. The translation-in-place locking mechanism according to claim 1, wherein: The locking pin (4) includes a pin body (41). Vertical connecting plates (42) are arranged on both sides of the upper end surface of the pin body (41). A clamping plate (43) perpendicular to the connecting plate (42) is arranged at the upper end of the connecting plate (42). A spacing is arranged between the clamping plate (43) and the upper end surface of the pin body (41); the joint (5) includes an upper connecting column (51) and a lower connecting column (52). The upper connecting column (51) is fixedly connected with the telescopic driving mechanism (1). Clamping grooves (53) are arranged on both side walls of the lower connecting column (52), and the clamping plate (43) is clamped into the clamping grooves (53).

6. The translation-in-place locking mechanism according to claim 1, characterized in that: A frustum-shaped guiding head (44) is arranged at the lower end of the locking pin (4).

7. The translation-in-place locking mechanism according to claim 1, characterized in that: The telescopic driving mechanism (1) is a cylinder.

8. The translation-in-place locking mechanism according to claim 7, characterized in that: The telescopic driving mechanism (1) is connected with the connecting seat (2) through bolts.

Images