Engineering vehicle hydraulic seat welding device

Abstract

The utility model relates to the technical field of hydraulic cylinder welding, in particular to an engineering vehicle hydraulic seat welding device which comprises a base, moving seats are connected to the front end and the rear end of the base in a sliding mode, and supporting frames are fixedly installed on the tops of the two moving seats. A first positioning mechanism and a second positioning mechanism are fixedly mounted on the opposite sides of the two supporting frames correspondingly, a hydraulic seat body and an oil cylinder body are clamped on the inner sides of the first positioning mechanism and the second positioning mechanism correspondingly, and a welding robot is fixedly mounted on the left side of the base. The first positioning mechanism is fixedly installed on a first installation frame at the top end of the supporting frame, a first hydraulic cylinder is fixedly installed on the inner side of the first installation frame, and the left end and the right end of the supporting frame are both connected with a movable frame in a sliding mode. Therefore, the welding efficiency and the welding quality are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder welding technology, specifically to a welding device for hydraulic seats of engineering vehicles. Background Technology

[0002] The hydraulic seat welding device for engineering vehicles is a key process equipment used to make a high-strength connection between the hydraulic seat (usually an irregular steel plate structure) and the oil cylinder. As the load-bearing base of the hydraulic system of engineering vehicles, the hydraulic seat needs to withstand the impact load generated by the reciprocating motion of the oil cylinder. Its welding quality directly affects the reliability and service life of the whole vehicle.

[0003] Currently, when welding the hydraulic base and cylinder of engineering vehicles, the welding of the hydraulic base and cylinder in the assembly of the hydraulic system of engineering vehicles usually adopts the traditional manual welding process. The core process is: after the hydraulic base and cylinder are rigidly fixed in the horizontal direction by simple tooling, the welding operation is carried out. However, this process has significant defects. Due to the instability of operation during manual welding, the hydraulic base and cylinder are prone to a certain degree of misalignment. Welding under such conditions is prone to result in poor quality of the welded product that does not meet the requirements. The welded product has risks such as sealing failure and stress concentration fracture, resulting in not only low welding efficiency but also poor welding quality.

[0004] Therefore, it is of great importance to design a hydraulic seat welding device for engineering vehicles to solve the above-mentioned defects. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model designs a welding device for hydraulic seats of engineering vehicles. This welding device aims to solve the technical problems of low welding efficiency and poor welding quality when manually welding hydraulic seats of engineering vehicles under existing technologies.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A welding device for hydraulic seats of engineering vehicles includes a base, with movable seats slidably connected to both the front and rear ends of the base. Support frames are fixedly installed on the top of the two sets of movable seats. A first positioning mechanism and a second positioning mechanism are fixedly installed on opposite sides of the two sets of support frames. A hydraulic seat body and a cylinder body are clamped on the inner sides of the first positioning mechanism and the second positioning mechanism, respectively. A welding robot is fixedly installed on the left side of the base.

[0008] The first positioning mechanism is fixedly installed on the first mounting bracket at the top of the support frame. A first hydraulic cylinder is fixedly installed on the inner side of the first mounting bracket. Movable brackets are slidably connected to both ends of the support frame. The driving end of the first hydraulic cylinder is fixedly connected to one of the movable brackets. Positioning frames are fixedly connected to the rear ends of the two movable brackets and on the left and right sides of the hydraulic base body. A transmission plate is rotatably connected to the middle of the inner side of the first mounting bracket. A linkage rod is installed between the transmission plate and the two movable brackets. The two ends of the linkage rod are rotatably connected to the transmission plate and the movable bracket, respectively.

[0009] The second positioning mechanism includes a second mounting bracket fixedly installed on the top of the support frame. A base is fixedly installed on the front of the second mounting bracket. Multiple positioning arms are rotatably connected to the outer side of the base. The cylinder body is clamped between the multiple positioning arms. A connecting rod is slidably connected to the base. A second hydraulic cylinder is fixedly installed on the inner side of the base and at the rear end of the connecting rod. The driving end of the second hydraulic cylinder is fixedly connected to the connecting rod. A connecting head is rotatably connected to the top of the connecting rod. A transmission arm is installed between the connecting head and each of the multiple positioning arms. A positioning plate is fixedly installed on the top of the connecting head. The rear end of the cylinder body abuts against the positioning plate.

[0010] As a preferred embodiment of this utility model, a first guide rail is fixedly installed on the inner side of the first mounting bracket and at both the upper and lower ends of the movable bracket, and both the upper and lower ends of the movable bracket are slidably connected to the first guide rail via a first sliding block.

[0011] As a preferred embodiment of this utility model, a support block is fixedly connected to the bottom end of the positioning frame, and a stop block is fixedly connected to the front end of the positioning frame.

[0012] As a preferred embodiment of this utility model, a spring is sleeved on the outer side of the connecting rod and between the connecting head and the base. The interior of the positioning plate is fixedly connected to the connecting head by fixing bolts. Movable grooves are opened in the interior of the positioning plate at positions corresponding to multiple sets of positioning arms.

[0013] As a preferred embodiment of this utility model, each of the four corners of the base is equipped with a movable wheel, and the bottom of the base, located outside the multiple sets of movable wheels, is threaded with a support foot.

[0014] As a preferred embodiment of this utility model, a bidirectional lead screw is rotatably connected to the middle of the top of the base, a motor is fixedly installed at the front end of the base, and the driving end of the motor is fixedly connected to the driving end of the bidirectional lead screw. The bottoms of the two sets of movable seats are connected to the two ends of the bidirectional lead screw through lead screw nuts.

[0015] As a preferred embodiment of this utility model, the left and right ends of the top of the base are fixedly installed with second guide rails, and the left and right ends of the two sets of movable seats are slidably connected to the second guide rails through second sliding blocks.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, through the coordinated design of the base, movable seat, support frame, first positioning mechanism, second positioning mechanism, and welding robot, when welding between the hydraulic seat body and the cylinder body, the first positioning mechanism is first used to clamp and fix the hydraulic seat body. After the hydraulic seat body is clamped and fixed, the second positioning mechanism is used to clamp and fix the cylinder body. Then, the two sets of movable seats are synchronized to align the cylinder body and the hydraulic seat body. The welding operation can be completed by the welding robot. This not only simplifies the operation but also ensures center alignment and avoids deviation, thereby greatly improving welding efficiency and welding quality. Attached Figure Description

[0018] Figure 1 This is an assembly drawing of the hydraulic base body and the cylinder body of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the first positioning mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the second positioning structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the connector structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the connecting rod structure of this utility model.

[0024] In the diagram: 1. Base; 101. Caster wheel; 102. Support foot; 2. Movable seat; 201. Double-acting lead screw; 202. Motor; 203. Lead screw nut; 204. Second guide rail; 205. Second slide; 3. Support frame; 4. First positioning mechanism; 401. First mounting bracket; 402. First hydraulic cylinder; 403. Movable frame; 404. Positioning frame; 405. Transmission plate; 406. Linkage rod; 407. First guide rail 408. Rail; 409. First slide block; 410. Stop block; 5. Second positioning mechanism; 501. Second mounting bracket; 502. Base; 503. Positioning arm; 504. Connecting rod; 505. Second hydraulic cylinder; 506. Connector; 507. Transmission arm; 508. Positioning plate; 509. Spring; 510. Fixing bolt; 511. Movable groove; 6. Hydraulic seat body; 7. Cylinder body; 8. Welding robot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example: Please refer to Figures 1-6 This utility model provides a technical solution:

[0027] A hydraulic seat welding device for engineering vehicles includes a base 1, with movable seats 2 slidably connected to both the front and rear ends of the base 1. Support frames 3 are fixedly installed on the top of the two sets of movable seats 2. A first positioning mechanism 4 and a second positioning mechanism 5 are fixedly installed on opposite sides of the two sets of support frames 3, respectively. A hydraulic seat body 6 and a cylinder body 7 are clamped on the inner sides of the first positioning mechanism 4 and the second positioning mechanism 5, respectively. A welding robot 8 is fixedly installed on the left side of the base 1.

[0028] First, in this embodiment, the specific structure of the first positioning mechanism 4 is as follows:

[0029] The first positioning mechanism 4 is fixedly installed on the first mounting bracket 401 at the top of the support frame 3. A first hydraulic cylinder 402 is fixedly installed on the inner side of the first mounting bracket 401. Movable brackets 403 are slidably connected to both ends of the support frame 3, and the driving end of the first hydraulic cylinder 402 is fixedly connected to one of the movable brackets 403. Positioning frames 404 are fixedly connected to the rear ends of the two movable brackets 403 and on the left and right sides of the hydraulic base body 6. A transmission plate 405 is rotatably connected to the middle of the inner side of the first mounting bracket 401. A linkage rod 406 is installed between the transmission plate 405 and the two movable brackets 403. The two ends of the linkage rod 406 are respectively connected to the transmission plate 405. Plate 405 and movable frame 403 are rotatably connected. When welding between hydraulic seat body 6 and cylinder body 7, the first hydraulic cylinder 402 is started to push one set of movable frames 403. Under the transmission of linkage rod 406, the transmission plate 405 is rotated. Under the connection of another set of linkage rod 406, the other set of movable frames 403 is moved synchronously, thereby controlling the two sets of positioning frames 404 to open synchronously. Then, the hydraulic seat body 6 is placed between the two sets of positioning frames 404. Then, the first hydraulic cylinder 402 is operated to return to control the two sets of positioning frames 404 to clamp and fix the hydraulic seat body 6, thereby facilitating and quickly fixing the hydraulic seat body 6.

[0030] Furthermore, in this embodiment, the specific structure of the second positioning mechanism 5 is as follows:

[0031] The second positioning mechanism 5 includes a second mounting bracket 501 fixedly installed on the top of the support frame 3. A base 502 is fixedly installed on the front of the second mounting bracket 501. Multiple positioning arms 503 are rotatably connected to the outer side of the base 502. The cylinder body 7 is clamped between the multiple positioning arms 503. A connecting rod 504 is slidably connected to the base 502. A second hydraulic cylinder 505 is fixedly installed on the inner side of the base 502 and at the rear end of the connecting rod 504. The driving end of the second hydraulic cylinder 505 is fixedly connected to the connecting rod 504. A connector 506 is rotatably connected to the top of the connecting rod 504. A transmission arm 507 is installed between the connector 506 and each of the multiple positioning arms 503. A positioning plate 508 is fixedly installed on the top of the connector 506. The rear end of the cylinder body 7 abuts against the positioning plate 508. After clamping and fixing the hydraulic seat body 6, the cylinder body 7 is placed between multiple positioning arms 503 and its rear end abuts against the positioning plate 508. Then, the second hydraulic cylinder 505 is activated to pull the connecting rod 504 back to move the connecting head 506. Under the connection of the transmission arm 507, the multiple positioning arms 503 are controlled to move synchronously, thereby clamping and fixing the cylinder body 7 using the multiple positioning arms 503. Then, the two sets of moving seats 2 can synchronize the cylinder body 7 and the hydraulic seat body 6 to complete the alignment. The welding robot 8 can then complete the welding operation. This is not only simple to operate, but also ensures center alignment and avoids offset, thereby greatly improving welding efficiency and welding quality.

[0032] Then, a first guide rail 407 is fixedly installed on the inner side of the first mounting bracket 401 and at both the upper and lower ends of the movable bracket 403. Both the upper and lower ends of the movable bracket 403 are slidably connected to the first guide rail 407 through a first slide block 408. When the first mounting bracket 401 moves synchronously, the first slide block 408 slides on the outer side of the first guide rail 407, thereby ensuring the movement stability of the first mounting bracket 401 and thus ensuring the firmness of the positioning frame 404 after clamping and fixing the hydraulic seat body 6.

[0033] Furthermore, a support block 409 is fixedly connected to the bottom of the positioning frame 404, and a stop block 410 is fixedly connected to the front of the positioning frame 404. When the positioning frame 404 is used to clamp and fix the hydraulic seat body 6, the support block 409 supports the bottom of the hydraulic seat body 6, while the stop block 410 limits the front of the hydraulic seat body 6, thereby facilitating and quickly completing the positioning and clamping and fixing.

[0034] A spring 509 is sleeved on the outside of the connecting rod 504 and between the connector 506 and the base 502. The interior of the positioning plate 508 is fixedly connected to the connector 506 by fixing bolts 510. Movable grooves 511 are opened in the interior of the positioning plate 508 at positions corresponding to the multiple sets of positioning arms 503. The fixing bolts 510 facilitate the assembly of the positioning plate 508. When the multiple sets of positioning arms 503 are operated to clamp and fix the cylinder body 7, the positioning arms 503 move inside the movable grooves 511.

[0035] Furthermore, each of the four corners of the base 1 is equipped with a caster wheel 101. Support feet 102 are threadedly connected to the bottom of the base 1 and to the outside of the multiple caster wheels 101. The caster wheels 101 at the bottom of the base 1 can move the entire device for easy transport. When welding, the support feet 102 are rotated to make them touch the ground, thereby fixing the base 1 and ensuring the stability of the welding.

[0036] Secondly, a bidirectional lead screw 201 is rotatably connected to the middle of the top of the base 1, and a motor 202 is fixedly installed at the front end of the base 1. The drive end of the motor 202 is fixedly connected to the drive end of the bidirectional lead screw 201. The bottom of the two sets of moving seats 2 are connected to the two ends of the bidirectional lead screw 201 through lead screw nuts 203. After clamping and fixing the hydraulic seat body 6 and the cylinder body 7, the motor 202 is started to drive the bidirectional lead screw 201 to rotate. Under the transmission of the lead screw nuts 203, the two sets of moving seats 2 are synchronously driven to move relative to each other until the cylinder body 7 and the hydraulic seat body 6 are aligned. The welding operation can be completed by the welding robot 8. It is not only simple to operate, but also ensures center alignment and avoids deviation, thereby greatly improving welding efficiency and welding quality.

[0037] Finally, the left and right ends of the top of the base 1 are fixedly installed with second guide rails 204. The left and right ends of the two sets of movable seats 2 are slidably connected to the second guide rails 204 through the second slides 205. When the movable seat 2 moves, the second slides 205 slide on the outside of the second guide rails 204, thereby ensuring the movement stability of the movable seat 2 and thus ensuring the stability of the welding operation.

[0038] In this embodiment, the specific implementation scenario is as follows: When welding the hydraulic seat body 6 and the cylinder body 7, the first hydraulic cylinder 402 is first activated to push one set of moving frames 403. Under the transmission of the linkage rod 406, the transmission plate 405 is rotated. Under the connection of another set of linkage rods 406, the other set of moving frames 403 is moved synchronously, thereby synchronously controlling the two sets of positioning frames 404 to open. Then, the hydraulic seat body 6 is placed between the two sets of positioning frames 404. Then, the first hydraulic cylinder 402 is operated to return to control the two sets of positioning frames 404 to clamp and fix the hydraulic seat body 6. After the hydraulic seat body 6 is clamped and fixed, the cylinder body 7 is then placed... Multiple positioning arms 503 are positioned together and their rear ends are pressed against the positioning plate 508. Then, the second hydraulic cylinder 505 is activated to pull the connecting rod 504 back to move the connecting head 506. Under the connection of the transmission arm 507, the multiple positioning arms 503 are controlled to move synchronously, thereby using the multiple positioning arms 503 to clamp and fix the cylinder body 7. Then, the two sets of moving seats 2 are synchronized to make the cylinder body 7 and the hydraulic seat body 6 complete the alignment. The welding robot 8 can then complete the welding operation. The whole operation process is simple and convenient. This utility model is designed to not only be easy to operate, but also to ensure center alignment and avoid deviation, thereby greatly improving welding efficiency and welding quality.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for hydraulic seats of engineering vehicles, comprising a base (1), characterized in that: The base (1) is slidably connected to the front and rear ends of the base (1). The top of the two sets of the movable seats (2) is fixedly installed with the support frame (3). The first positioning mechanism (4) and the second positioning mechanism (5) are fixedly installed on the opposite side of the two sets of the support frame (3). The hydraulic seat body (6) and the oil cylinder body (7) are clamped on the inner side of the first positioning mechanism (4) and the second positioning mechanism (5). The welding robot (8) is fixedly installed on the left side of the base (1). The first positioning mechanism (4) is fixedly installed on the first mounting frame (401) at the top of the support frame (3). The first hydraulic cylinder (402) is fixedly installed on the inner side of the first mounting frame (401). The left and right ends of the support frame (3) are slidably connected to the moving frame (403). The driving end of the first hydraulic cylinder (402) is fixedly connected to one of the moving frames (403). The rear ends of the two moving frames (403) and the left and right sides of the hydraulic seat body (6) are fixedly connected to the positioning frame (404). The transmission plate (405) is rotatably connected to the middle of the inner side of the first mounting frame (401). The transmission plate (405) and the two moving frames (403) are connected to the linkage rod (406). The two ends of the linkage rod (406) are rotatably connected to the transmission plate (405) and the moving frame (403) respectively. The second positioning mechanism (5) includes a second mounting bracket (501) fixedly installed on the top of the support frame (3). A base (502) is fixedly installed on the front of the second mounting bracket (501). Multiple positioning arms (503) are rotatably connected to the outer side of the base (502). The cylinder body (7) is clamped between the multiple positioning arms (503). A connecting rod (504) is slidably connected to the base (502). The inner side of the base (502) and located on the connecting rod (504) A second hydraulic cylinder (505) is fixedly installed at the rear end of the cylinder body (7), and the driving end of the second hydraulic cylinder (505) is fixedly connected to the connecting rod (504). A connector (506) is rotatably connected to the top end of the connecting rod (504). A transmission arm (507) is installed between the connector (506) and multiple positioning arms (503). A positioning plate (508) is fixedly installed on the top of the connector (506). The rear end of the cylinder body (7) abuts against the positioning plate (508).

2. The hydraulic seat welding device for engineering vehicles according to claim 1, characterized in that: The first mounting bracket (401) is fixedly mounted on the inner side of the first mounting bracket (401) and at both the upper and lower ends of the movable bracket (403). The upper and lower ends of the movable bracket (403) are slidably connected to the first guide rail (407) through the first slide block (408).

3. The hydraulic seat welding device for engineering vehicles according to claim 1, characterized in that: The bottom end of the positioning frame (404) is fixedly connected to a support block (409), and the front end of the positioning frame (404) is fixedly connected to a stop block (410).

4. The hydraulic seat welding device for engineering vehicles according to claim 1, characterized in that: A spring (509) is sleeved on the outside of the connecting rod (504) and between the connector (506) and the base (502). The interior of the positioning plate (508) is fixedly connected to the connector (506) by fixing bolts (510). Movable grooves (511) are provided inside the positioning plate (508) at positions corresponding to the multiple sets of positioning arms (503).

5. The hydraulic seat welding device for engineering vehicles according to claim 1, characterized in that: The base (1) has four corners at the bottom of each of the four corners ...

6. The hydraulic seat welding device for engineering vehicles according to claim 1, characterized in that: A bidirectional lead screw (201) is rotatably connected to the middle of the top of the base (1). A motor (202) is fixedly installed at the front end of the base (1), and the driving end of the motor (202) is fixedly connected to the driving end of the bidirectional lead screw (201). The bottoms of the two sets of movable seats (2) are connected to both ends of the bidirectional lead screw (201) through lead screw nuts (203).

7. The hydraulic seat welding device for engineering vehicles according to claim 1, characterized in that: The base (1) has a second guide rail (204) fixedly installed on both the left and right ends of the top. The two sets of movable seats (2) are slidably connected to the second guide rail (204) through the second slide (205).

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