Precise positioning clamp for laser cutting of automobile chassis

Abstract

The utility model discloses an automobile chassis laser cutting precision positioning clamp which comprises an auxiliary supporting frame and supporting rods, two sets of supporting rods are installed at the top end of the auxiliary supporting frame, telescopic rods are installed at the two ends of each supporting rod, the telescopic rods are connected with the supporting rods in a sliding mode, locking pins are installed on the side walls of the telescopic rods, and the locking pins are connected with the supporting rods in a sliding mode. And the locking pins penetrate through the telescopic rods and extend into the supporting rods, supporting plates are installed at the ends, away from the supporting rods, of the telescopic rods correspondingly, clamping hydraulic rods are installed on the outer walls of the supporting plates correspondingly, clamping push arms are installed at the output ends of the clamping hydraulic rods correspondingly, and sliding sleeves are installed on the portions, on the two sides of the clamping hydraulic rods, of the side walls of the supporting plates correspondingly. According to the laser cutting device, the commercial vehicle chassis can be conveniently clamped and fixed at multiple positions, angle adjustment and laser cutting operation can be conveniently carried out, the commercial vehicle chassis with different lengths can be conveniently adjusted, matched and clamped, and the use flexibility and the cutting convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a precision positioning fixture for laser cutting of automobile chassis. Background Art

[0002] The chassis of a commercial vehicle consists of four parts: the transmission system, the driving system, the steering system, and the braking system. The chassis supports and installs the vehicle engine and its components and assemblies, shapes the overall shape of the vehicle, and receives the power of the engine to make the vehicle move and ensure normal driving. The chassis needs to be laser cut after production. Traditional laser cutting is mostly fixed processing with fixed processing dimensions, and cannot be adjusted to fit the chassis size. In order to better perform laser cutting on the vehicle chassis, a precision positioning fixture for laser cutting of the vehicle chassis is proposed.

[0003] For example, a vehicle chassis bracket fixing fixture disclosed in the authorization announcement number CN216991589U includes a base frame, support platforms are respectively installed at both ends of the base frame, and a support plate is fixedly connected to the inner side of the upper surface of the support platform;

[0004] Although it realizes the switch of controlling the air pump, the gas will enter the air pump fixing clamp through the air pump tube and push the active shaft at the top of the air pump fixing clamp upward, and the slotted seat connected to the top of the active shaft will also move upward. Due to the limit of the connecting piece hingedly arranged between the middle part of the hinge block and the convex seat, after the slotted seat is pushed upward, the hinge block will only swing, so that the mounting head connected to the front end of the hinge block will only swing up and down. After the mounting head swings downward, it will squeeze the workbench. After the mounting head swings backward, the workbench can be disassembled.

[0005] However, the problem that the existing positioning fixture is not conducive to convenient multi-position clamping and fixing of commercial vehicle chassis and convenient angle adjustment laser cutting processing operations when used, is not conducive to adjusting and adapting the clamping of commercial vehicle chassis of different lengths, affecting the flexibility of use and the convenience of cutting. Utility Model Content

[0006] The purpose of the utility model is to provide a precision positioning fixture for laser cutting of automobile chassis, so as to solve the problems proposed in the above background technology that the positioning fixture is not convenient for multi-position clamping and fixing of commercial automobile chassis and convenient angle adjustment for laser cutting processing, is not conducive to adjusting and adapting the clamping of commercial automobile chassis of different lengths, and affects the flexibility of use and the convenience of cutting.

[0007] Material toggling mechanism, its both ends are connected with the up-down knob.The bolt has a round shank to move up and down the knob.The bolt has a round shank to move up and down the knob. The bolt has a round shank to move up and down the knob.

[0008] Preferably, one end of the clamping hydraulic rod is installed with a hinge shaft, and the clamping hydraulic rod is movably connected to the support plate through the hinge shaft.

[0009] Preferably, the output ends of the clamping hydraulic rods are all equipped with clamping push arms, and the ends of the clamping push arms away from the clamping hydraulic rods are all equipped with curved arms.

[0010] Preferably, a linkage shaft is installed at one end of the crank arm close to the clamping push arm, and the clamping push arm is movably connected to the crank arm through the linkage shaft.

[0011] Preferably, a connecting rod is installed inside the crank arm, and the connecting rod passes through the support plate, and a clamping claw is installed at one end of the connecting rod away from the crank arm.

[0012] Preferably, a rotating box is installed on the inner wall of the main support frame, a servo motor is installed on the inner wall of the rotating box, and a worm is installed on the output end of the servo motor.

[0013] Preferably, a transmission shaft is movably installed inside the rotating box on one side of the worm, a worm wheel is mounted on the surface of the transmission shaft, and the worm and the worm wheel are meshed with each other.

[0014] Preferably, a movable ring is movably installed at one end of the transmission shaft, a rotating plate is installed on the side wall of the movable ring, a driven shaft is installed at the end of the rotating plate away from the movable ring, and the rotating plate is movably connected to the main support frame through the driven shaft, and the rotating plate is connected to the auxiliary support frame.

[0015] Compared with the existing technology, the beneficial effects of the present invention are: the positioning fixture not only realizes convenient multi-position clamping and fixing of commercial vehicle chassis and convenient angle adjustment laser cutting processing, facilitates adjustment and adaptation clamping of commercial vehicle chassis of different lengths, but also improves the flexibility of use and the convenience of cutting;

[0016] (1) The clamping hydraulic rod drives the clamping push arm to move, and the clamping push arm drives the clamping block to move. At the same time, the clamping block drives the slide bar to slide inside the sliding sleeve. The sliding sleeve and the slide bar provide position support for the clamping block. The two sets of clamping blocks clamp and fix the chassis. The clamping hydraulic rod is opened, and the clamping hydraulic rod drives the clamping push arm to move. The articulated shaft provides active support for the clamping hydraulic rod. The clamping push arm drives the crank arm to rotate through the linkage shaft, and the crank arm drives the connecting rod to rotate. The connecting rod drives the clamping claw to rotate. Multiple sets of clamping claws are used to clamp the chassis from both sides. The clamp is used to further clamp and fix the chassis, and then the laser cutting process of the chassis is completed. If the length of the chassis is different, first loosen the locking pin to separate the telescopic rod and the support rod, pull the telescopic rod to make it slide on the surface of the support rod, and the telescopic rod drives the two sets of support plates, clamping blocks and clamping claws away from each other to adapt and clamp chassis of different lengths, realizing convenient multi-position clamping and fixing of commercial vehicle chassis, facilitating the adjustment and adaptation of commercial vehicle chassis of different lengths, and improving the flexibility of use;

[0017] (2) The servo motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the transmission shaft to rotate, the transmission shaft drives the movable ring to rotate, the movable ring drives the rotating plate to rotate with the driven shaft as the axis, and the rotating plate drives the auxiliary support frame and the overall equipment and the chassis to rotate, so as to adjust the cutting angle of the chassis, so as to more conveniently perform laser cutting processing on the chassis, realize convenient angle adjustment laser cutting processing operations, and improve cutting convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the support plate of the present invention;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the support rod of the utility model;

[0021] Figure 4 This is a front view structural diagram of the main support frame of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the main support frame of the present invention.

[0023] In the figure: 1. Main support frame; 2. Support plate; 3. Support rod; 4. Auxiliary support frame; 5. Clamping hydraulic rod; 6. Clamping push arm; 7. Slide; 8. Clamping block; 9. Slide; 10. Articulated shaft; 11. Clamping hydraulic rod; 12. Clamping push arm; 13. Linkage shaft; 14. Crank arm; 15. Connecting rod; 16. Clamping claw; 17. Telescopic rod; 18. Locking pin; 19. Rotating box; 20. Servo motor; 21. Worm; 22. Worm gear; 23. Rotating plate; 24. Driven shaft; 25. Transmission shaft; 26. Movable ring. DETAILED DESCRIPTION

[0024] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0025] See also Figure 1-5 The utility model provides an embodiment: a precision positioning fixture for laser cutting of automobile chassis, comprising a sub-support frame 4 and a support rod 3, two sets of support rods 3 are installed on the top of the sub-support frame 4, telescopic rods 17 are installed at both ends of the support rod 3, and the telescopic rods 17 are slidably connected to the support rod 3, locking pins 18 are installed on the side walls of the telescopic rods 17, and the locking pins 18 pass through the telescopic rods 17 and extend to the inside of the support rod 3, the end of the telescopic rods 17 away from the support rod 3 is installed with a support plate 2, and the outer wall of the support plate 2 is installed with a clamping Hydraulic rod 5, the clamping hydraulic rod 5 plays the role of power drive, the output end of the clamping hydraulic rod 5 is equipped with a clamping push arm 6, the side walls of the support plate 2 on both sides of the clamping hydraulic rod 5 are equipped with a sliding sleeve 7, the interior of the sliding sleeve 7 is slidably installed with a sliding rod 9, one side of the support plate 2 is provided with a clamping block 8, and the clamping block 8 is respectively connected to the clamping push arm 6 and the sliding rod 9, and the side wall of the support plate 2 below the sliding sleeve 7 is equipped with a clamping hydraulic rod 11, which plays the role of power drive, and the main support frame 1 is provided on the outside of the auxiliary support frame 4;

[0026] When it is necessary to perform precise positioning of laser cutting on the chassis of a commercial vehicle, the device is connected to an external controller and an external circuit. First, the chassis is placed on the support rod 3 and the telescopic rod 17. Then, the clamping hydraulic rod 5 is opened, and the clamping push arm 6 is driven by the clamping hydraulic rod 5 to move. The clamping push arm 6 drives the clamping block 8 to move. At the same time, the clamping block 8 drives the sliding rod 9 to slide inside the sliding sleeve 7. The sliding sleeve 7 and the sliding rod 9 are used to limit the clamping block 8. The chassis is clamped and fixed by two groups of clamping blocks 8. The clamping hydraulic rod 11 is opened, and the clamping hydraulic rod 11 drives the clamping push arm 12 to move. The hinge shaft 10 provides active support for the clamping hydraulic rod 11. The clamping push arm 12 drives the crank arm 14 to rotate through the linkage shaft 13, and the crank arm 14 drives the connecting rod 15 rotates, and the connecting rod 15 drives the clamping claws 16 to rotate, and multiple groups of clamping claws 16 are used to clamp the chassis from both sides, so as to further clamp and fix the chassis, and then complete the laser cutting process of the chassis. If the lengths of the chassis are different, first loosen the locking pin 18 to separate the telescopic rod 17 and the support rod 3, pull the telescopic rod 17, and make the telescopic rod 17 slide on the surface of the support rod 3. The telescopic rod 17 drives the two groups of support plates 2, the clamping block 8 and the clamping claws 16 away from each other to adapt and clamp chassis of different lengths, so as to complete the laser cutting operation of chassis of different lengths, thereby realizing convenient multi-position clamping and fixing of commercial vehicle chassis, facilitating the adjustment and adaptation clamping of commercial vehicle chassis of different lengths, and improving the flexibility of use.

[0027] One end of the clamping hydraulic rod 11 is installed with a hinge shaft 10, and the clamping hydraulic rod 11 is movably connected to the support plate 2 through the hinge shaft 10;

[0028] The output end of the clamping hydraulic rod 11 is equipped with a clamping push arm 12, and the end of the clamping push arm 12 away from the clamping hydraulic rod 11 is equipped with a crank arm 14, and the end of the crank arm 14 close to the clamping push arm 12 is equipped with a linkage shaft 13, and the clamping push arm 12 is movably connected to the crank arm 14 through the linkage shaft 13;

[0029] A connecting rod 15 is installed inside the crank arm 14, and the connecting rod 15 passes through the support plate 2, and a clamping claw 16 is installed on the end of the connecting rod 15 away from the crank arm 14. A rotating box 19 is installed on the inner wall of the main support frame 1, and a servo motor 20 is installed on the inner wall of the rotating box 19. The servo motor 20 plays a role of power drive, and a worm 21 is installed at the output end of the servo motor 20;

[0030] A transmission shaft 25 is movably mounted inside the rotating box 19 on one side of the worm 21. A worm wheel 22 is mounted on the surface of the transmission shaft 25, and the worm 21 and the worm wheel 22 are meshed with each other.

[0031] A movable ring 26 is movably mounted on one end of the transmission shaft 25, a rotating plate 23 is mounted on the side wall of the movable ring 26, a driven shaft 24 is mounted on the end of the rotating plate 23 away from the movable ring 26, and the rotating plate 23 is movably connected to the main support frame 1 through the driven shaft 24, and the rotating plate 23 is connected to the auxiliary support frame 4;

[0032] When it is necessary to adjust the angle of the chassis for laser cutting, the servo motor 20 is turned on, and the servo motor 20 drives the worm 21 to rotate. Under the mutual engagement of the worm 21 and the worm wheel 22, the worm 21 drives the worm wheel 22 to rotate, and the worm wheel 22 drives the transmission shaft 25 to rotate, and the transmission shaft 25 drives the movable ring 26 to rotate, and the movable ring 26 drives the rotating plate 23 to rotate with the driven shaft 24 as the axis, and the rotating plate 23 drives the auxiliary support frame 4 and the overall equipment and the chassis to rotate, so as to adjust the cutting angle of the chassis, so as to more conveniently perform laser cutting on the chassis, realize convenient angle adjustment laser cutting processing operations, and improve the convenience of cutting.

[0033] Working principle: When it is necessary to perform precise positioning of laser cutting on the chassis of a commercial vehicle, the device is connected to the external controller and the external circuit. First, the chassis is placed on the support rod 3 and the telescopic rod 17. Then, the clamping hydraulic rod 5 is opened, and the clamping hydraulic rod 5 drives the clamping push arm 6 to move, and the clamping push arm 6 drives the clamping block 8 to move. At the same time, the clamping block 8 drives the sliding rod 9 to slide inside the sliding sleeve 7. The sliding sleeve 7 and the sliding rod 9 are used to limit the clamping block 8. The chassis is clamped and fixed by two groups of clamping blocks 8. The clamping hydraulic rod 11 is opened, and the clamping hydraulic rod 11 drives the clamping push arm 12 to move. The hinge shaft 10 provides movable support for the clamping hydraulic rod 11. The clamping push arm 12 drives the crank arm 14 to rotate through the linkage shaft 13. The crank arm 14 drives the connecting rod 15 to rotate. The connecting rod 15 drives the clamping claw 16 to rotate. Multiple groups of clamping claws 16 clamp the chassis from both sides, thereby further clamping and fixing the chassis. , then complete the laser cutting of the chassis. If the lengths of the chassis are different, first loosen the locking pin 18 to separate the telescopic rod 17 and the support rod 3, pull the telescopic rod 17, and make the telescopic rod 17 slide on the surface of the support rod 3. The telescopic rod 17 drives the two sets of support plates 2, the clamping block 8 and the clamping claws 16 to move away from each other to adapt and clamp chassis of different lengths to complete the laser cutting operation of chassis of different lengths. The servo motor 20 drives the worm 21 to rotate, and the worm 21 drives the worm gear 22 to rotate, and the worm gear 22 drives the transmission shaft 25 to rotate, and the transmission shaft 25 drives the movable ring 26 to rotate, and the movable ring 26 drives the rotating plate 23 to rotate with the driven shaft 24 as the axis, and the rotating plate 23 drives the auxiliary support frame 4 and the overall equipment and the chassis to rotate, so as to adjust the cutting angle of the chassis, so as to more conveniently perform laser cutting on the chassis, and complete the use of the automobile chassis laser cutting precision positioning fixture.

[0034] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A precision positioning fixture for laser cutting of automobile chassis, comprising a secondary support frame (4) and a support rod (3), characterized in that: Two groups of support rods (3) are installed at the top of the auxiliary support frame (4), and telescopic rods (17) are installed at both ends of the support rods (3), and the telescopic rods (17) are slidably connected to the support rods (3). Locking pins (18) are installed on the side walls of the telescopic rods (17), and the locking pins (18) pass through the telescopic rods (17) and extend to the inside of the support rods (3). The ends of the telescopic rods (17) away from the support rods (3) are installed with support plates (2), and the outer walls of the support plates (2) are installed with clamping hydraulic rods (5). The output ends of the holding hydraulic rods (5) are all equipped with clamping push arms (6), the side walls of the support plates (2) on both sides of the clamping hydraulic rods (5) are all equipped with sliding sleeves (7), the interior of the sliding sleeves (7) is all slidably equipped with sliding rods (9), one side of the support plates (2) is provided with clamping blocks (8), and the clamping blocks (8) are respectively connected to the clamping push arms (6) and the sliding rods (9), the side walls of the support plates (2) below the sliding sleeves (7) are all equipped with clamping hydraulic rods (11), and the outside of the auxiliary support frame (4) is provided with a main support frame (1).

2. The automobile chassis laser cutting precision positioning fixture according to claim 1, characterized in that: One end of the clamping hydraulic rod (11) is installed with a hinge shaft (10), and the clamping hydraulic rod (11) is movably connected to the support plate (2) through the hinge shaft (10).

3. The automobile chassis laser cutting precision positioning fixture according to claim 1, characterized in that: The output end of the clamping hydraulic rod (11) is equipped with a clamping push arm (12), and the end of the clamping push arm (12) away from the clamping hydraulic rod (11) is equipped with a crank arm (14).

4. The automobile chassis laser cutting precision positioning fixture according to claim 3, characterized in that: The end of the crank arm (14) close to the clamping push arm (12) is equipped with a linkage shaft (13), and the clamping push arm (12) is movably connected to the crank arm (14) through the linkage shaft (13).

5. The automobile chassis laser cutting precision positioning fixture according to claim 3, characterized in that: The interior of the crank arm (14) is provided with a connecting rod (15), and the connecting rod (15) passes through the support plate (2), and a clamping claw (16) is provided at one end of the connecting rod (15) away from the crank arm (14).

6. The automobile chassis laser cutting precision positioning fixture according to claim 1, characterized in that: A rotating box (19) is installed on the inner wall of the main support frame (1), a servo motor (20) is installed on the inner wall of the rotating box (19), and a worm (21) is installed at the output end of the servo motor (20).

7. The automobile chassis laser cutting precision positioning fixture according to claim 6, characterized in that: A transmission shaft (25) is movably installed inside the rotating box (19) on one side of the worm (21), and a worm wheel (22) is sleeved on the surface of the transmission shaft (25), and the worm (21) and the worm wheel (22) are meshed with each other.

8. The automobile chassis laser cutting precision positioning fixture according to claim 7, characterized in that: A movable ring (26) is movably mounted on one end of the transmission shaft (25), a rotating plate (23) is mounted on the side wall of the movable ring (26), a driven shaft (24) is mounted on one end of the rotating plate (23) away from the movable ring (26), and the rotating plate (23) is movably connected to the main support frame (1) via the driven shaft (24), and the rotating plate (23) is connected to the auxiliary support frame (4).

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