A guide rail vehicle part laser cutting positioning clamp

Abstract

The utility model relates to the technical fields of positioning fixture especially is a guide rail car part laser cutting positioning fixture, including: mounting frame, square, rotation is connected in mounting frame, support axle chain, set up in the inside of mounting frame, steel wire brush, interval rotation is connected in the inside of mounting frame, and steel wire brush is connected with support axle link, rotation subassembly, set up in mounting frame, is used for driving support axle chain to rotate. The utility model drives the support axle chain circulation rotation through brushless motor drive connection cylinder, makes the support of support axle chain surface periodic replacement, can avoid slag continuous accumulation, simultaneously, through first motor, worm and worm wheel drive steel wire brush rotation, can automatically clean the dirt of support axle chain surface adhesion, this kind of dynamic cleaning and support surface replacement mechanism, not only can ensure that the workpiece is always in the flat stable state, guarantee laser focal point and the consistency of cutting path, can also greatly reduce artificial cleaning frequency, improve equipment continuous operation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of positioning fixtures, and in particular to a laser cutting positioning fixture for guide rail vehicle parts. Background Technology

[0002] In the manufacturing process of guide rail vehicles, track magnetic tape is one of the key functional components, and its processing accuracy and surface quality directly affect the stability and safety of the entire vehicle's operation. Currently, track magnetic tape is generally formed using laser cutting technology, which has advantages such as high cutting accuracy, small heat-affected zone, and high degree of automation, and is widely used in the mass production of thin metal sheet parts.

[0003] However, in actual laser cutting operations, the high-energy laser beam generates a large amount of high-temperature molten metal debris when it acts on metal materials. This debris is easily splashed and adheres to the fixtures or worktables used to support the workpiece under the influence of airflow or gravity. Over time, this adhered slag gradually accumulates, not only altering the original flatness of the support surface but also potentially causing subsequent workpieces to be unable to maintain a level or stable position. Even a slight shift or tilt in the workpiece during cutting will directly affect the consistency between the laser focus position and the cutting path, leading to quality problems such as cut deviations, increased burrs, and even dimensional errors. Furthermore, to maintain processing accuracy, operators must frequently stop the machine to manually clean the support components, which not only reduces production efficiency but also increases labor intensity and maintenance costs. Utility Model Content

[0004] In view of this, the present invention provides a laser cutting positioning fixture for guide rail vehicle parts, which can overcome the shortcomings of existing laser cutting processes where molten debris adheres to the support components, causing unstable workpiece placement, affecting cutting accuracy, and requiring frequent manual cleaning.

[0005] The technical solution is as follows: A laser cutting positioning fixture for guide rail vehicle parts, comprising: a mounting frame; a square frame rotatably connected to the mounting frame; a support chain disposed inside the mounting frame; a wire brush rotatably connected at intervals inside the mounting frame, and the wire brush contacting the support chain; a rotating assembly disposed on the mounting frame for driving the support chain to rotate; a driving assembly disposed on the mounting frame for driving the wire brush to rotate; a clamping assembly disposed on the square frame for clamping and fixing the workpiece to be processed; and a conveying assembly disposed on the mounting frame for conveying the workpiece to be processed.

[0006] Furthermore, the rotating assembly includes: a brushless motor, symmetrically mounted on the inner side of the mounting frame; and connecting cylinders, mounted on the brushless motor, with the support shaft chain wound between the two connecting cylinders.

[0007] Furthermore, the drive assembly includes: a first motor mounted on the mounting frame; a worm gear rotatably connected to the mounting frame, with the end of the worm gear connected to the output shaft of the first motor; and a worm wheel connected to the end of the wire brush, with the worm wheel meshing with the worm gear.

[0008] Furthermore, the clamping assembly includes: a connecting frame symmetrically connected to the top of the square frame; a sliding frame slidably connected to the connecting frame; a connecting spring connected to the sliding frame and the connecting frame at both ends respectively; and a rotating roller rotatably connected to the sliding frame.

[0009] Furthermore, the conveying assembly includes: a connecting plate symmetrically connected to both sides of the mounting frame; a second motor mounted on the side of the connecting plate; and an air shaft rotatably mounted on the connecting plate, with the end of the air shaft connected to the output shaft of the second motor.

[0010] Furthermore, it also includes: a locking bolt, threaded to the side of the mounting frame, and the locking bolt sliding through the side of the frame.

[0011] Furthermore, it also includes a pinch plate, which is attached to the end of the locking bolt.

[0012] Furthermore, it also includes: a support plate, symmetrically connected to the inner wall of the mounting frame, and the support plate is in contact with the support chain.

[0013] Furthermore, it also includes: a collection box, which is slidably connected to the inside of the mounting frame; and a handle, which is connected to the side of the collection box.

[0014] Furthermore, the height of the air shaft is lower than the height of the connecting cylinder.

[0015] Beneficial effects: 1. This utility model uses a brushless motor to drive the connecting cylinder to rotate the support chain in a cycle, so that the support surface of the support chain is changed periodically, which can avoid the continuous accumulation of slag. At the same time, the first motor, worm and worm wheel drive the wire brush to rotate, which can automatically clean the debris adhering to the surface of the support chain. This dynamic cleaning and support surface replacement mechanism can not only ensure that the workpiece is always in a flat and stable state and ensure the consistency of the laser focus and the cutting path, but also greatly reduce the frequency of manual cleaning and improve the continuous operation efficiency of the equipment.

[0016] 2. This utility model uses a rotating roller that adaptively clamps the raw material under the action of a connecting spring. This provides a stable clamping force and also assists the smooth movement of the raw material through the rotation of the rotating roller. At the same time, the second motor drives the air shaft to rotate, realizing the automatic unwinding and rewinding of the raw material. The combination of the two ensures that the raw material does not shift or loosen during the cutting process, effectively avoiding the problems of cutting deviation and dimensional deviation caused by workpiece movement.

[0017] 3. This utility model can quickly lock or open the square frame by using the locking bolt and the pinch plate, which facilitates the installation and replacement of raw materials. At the same time, the support plate can effectively support the inner side of the support shaft chain to prevent it from being deformed by pressure and ensure the smooth operation of the support shaft chain. The design of the collection frame allows cutting debris and cleaning waste to be collected centrally and cleaned conveniently, reducing maintenance costs and keeping the working environment clean. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram showing the installation of the support shaft chain, wire brush, rotating assembly, and drive assembly of this utility model.

[0020] Figure 3 This is a schematic diagram of the installation of the clamping component of this utility model.

[0021] Figure 4 This is a schematic diagram of the specific structure of the conveying component of this utility model.

[0022] Figure 5 This is a schematic diagram showing the installation of the locking bolt, pinch plate, support plate, collection frame, and handle of this utility model.

[0023] The markings in the diagram are as follows: 1-Mounting frame, 2-Square frame, 3-Support chain, 4-Wire brush, 5-Brushless motor, 6-Connecting cylinder, 7-First motor, 8-Worm, 9-Worm wheel, 10-Connecting frame, 11-Sliding frame, 12-Connecting spring, 13-Rotating roller, 14-Connecting plate, 15-Second motor, 16-Air shaft, 17-Locking bolt, 18-Squeezing plate, 19-Support plate, 20-Collection frame, 21-Handle. Detailed Implementation

[0024] 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.

[0025] Example: A laser cutting positioning fixture for guide rail vehicle parts, such as... Figures 1-4As shown, the assembly includes a mounting frame 1, a square frame 2, a support chain 3, wire brushes 4, a rotating assembly, a driving assembly, a clamping assembly, and a conveying assembly. The square frame 2 is rotatably connected to the upper rear side of the mounting frame 1. The support chain 3 is located inside the mounting frame 1. The support chain 3 is a chain plate structure, and its shape and function are similar to a conveyor belt. Three wire brushes 4 are rotatably connected from front to back on the lower side inside the mounting frame 1, and the wire brushes 4 are in contact with the lower half of the support chain 3. The mounting frame 1 is equipped with a rotating assembly for driving the support chain 3 to rotate. The mounting frame 1 is equipped with a driving assembly for driving the wire brushes 4 to rotate. The square frame 2 is equipped with a clamping assembly for clamping and fixing the workpiece to be processed. The mounting frame 1 is equipped with a conveying assembly for conveying the workpiece to be processed.

[0026] like Figure 2 As shown, the rotating assembly includes a brushless motor 5 and a connecting cylinder 6. The brushless motor 5 is symmetrically installed inside the mounting frame 1. A connecting cylinder 6 is installed on each of the two brushless motors 5. The outer surfaces of the two connecting cylinders 6 are circumferentially spaced with slots that are adapted to the shape of the support chain 3. The support chain 3 is wound between the two connecting cylinders 6, and the longitudinal rod-shaped parts on the support chain 3 are embedded in the corresponding slots of the connecting cylinders 6.

[0027] like Figure 1 and Figure 2 As shown, the drive assembly includes a first motor 7, a worm 8, and a worm wheel 9. The first motor 7 is mounted on the front right side of the mounting frame 1. The worm 8 is rotatably connected to the right side of the mounting frame 1, and the front end of the worm 8 is connected to the output shaft of the first motor 7. The right ends of the three wire brushes 4 are all connected to the worm wheel 9, and the worm wheel 9 meshes with the worm 8.

[0028] like Figure 3 As shown, the clamping assembly includes a connecting frame 10, a sliding frame 11, a connecting spring 12, and a rotating roller 13. The top left and right sides of the square frame 2 are connected to the connecting frame 10, and the sliding frame 11 is slidably connected to both connecting frames 10. The sliding frame 11 is located inside the square frame 2, and the connecting spring 12 is connected between the sliding frame 11 and the connecting frame 10. The lower part of both sliding frames 11 is rotatably connected to the rotating roller 13, which is located directly above the connecting cylinder 6.

[0029] like Figure 1 and Figure 4 As shown, the conveying assembly includes a connecting plate 14, a second motor 15, and an air shaft 16. The left and right rear sides of the mounting frame 1 are connected to the connecting plate 14. The second motor 15 is installed on the rear side of the two connecting plates 14. The air shaft 16 is rotatably installed on the two connecting plates 14, and the rear end of the air shaft 16 is connected to the output shaft of the second motor 15.

[0030] like Figure 5As shown, it also includes a locking bolt 17 and a pinch plate 18. The locking bolt 17 is threadedly connected to the upper front side of the mounting frame 1. A round hole is opened in the middle front side of the square frame 2. The locking bolt 17 passes through the inner side of the round hole. The pinch plate 18 is connected to the front end of the locking bolt 17.

[0031] like Figure 5 As shown, it also includes a support plate 19. The front and rear sides of the inner wall of the mounting frame 1 are connected to the support plate 19. The top and bottom of the support plate 19 are in contact with the inner side of the support shaft chain 3 to support the support shaft chain 3 and prevent the front and rear sides of the support shaft chain 3 from deforming due to pressure.

[0032] like Figure 5 As shown, it also includes a collection box 20 and a handle 21. The collection box 20 is slidably connected to the lower inner part of the mounting frame 1, and the handle 21 is connected to the front side of the collection box 20.

[0033] When this positioning fixture is needed, first install it as a whole on the side of the laser cutting equipment. Then, place the raw material roll sleeve on the left air shaft 16 and the take-up drum sleeve on the right air shaft 16. Then, control the expansion of the two air shafts 16 to fix the raw material and the take-up drum respectively. Then, rotate the pinch plate 18, which drives the locking bolt 17 to rotate. The locking bolt 17 moves forward, disengaging the locking bolt 17 from the mounting frame 1 and the square frame 2. Then, flip the square frame 2 upward to open it, causing the clamping assembly to lift synchronously. Next, the end of the raw material is led out to the right, passing through the area above the mounting frame 1 and then fixed to the take-up drum. Because the height of the air shaft 16 is lower than that of the connecting drum 6, the led-out raw material section will naturally adhere tightly to the top of the support chain 3. Then, the square frame 2 is closed downwards, and the clamping assembly descends accordingly. When the rotating roller 13 contacts the surface of the raw material, the sliding frame 11 stops moving downwards, while the square frame 2 continues to press down, stretching the connecting spring 12. Then, the locking bolt 17 is reset and the pinch plate 18 is rotated in the opposite direction. The pinch plate 18 drives the locking bolt 17 to rotate in the opposite direction. The rotation causes the locking bolt 17 to move backward, locking the square frame 2. At this time, the rotating roller 13 and the connecting cylinder 6 clamp the raw material together. Then, the laser cutting equipment can be started to cut the raw material at the top of the support chain 3. The cut workpiece will fall through the gap of the support chain 3 into the collection frame 20. Afterward, the second motor 15 and the brushless motor 5 are started. The second motor 15 drives the air shaft 16 to rotate at a specified angle, realizing unwinding on the left and rewinding on the right, driving the raw material to move to the right, so that the new material segment enters the processing position. During this process... The friction between the raw material and the rotating roller 13 drives its rotation, assisting in feeding. At the same time, the brushless motor 5 drives the support chain 3 to rotate at a specified angle through the connecting cylinder 6, which can both assist in feeding and realize the repositioning of the upper and lower working surfaces of the support chain 3. Laser cutting can then be performed again. During the cutting process, the first motor 7 can be started, which drives the worm gear 8 to rotate. The worm gear 8 drives the worm wheel 9 and the wire brush 4 to rotate. The wire brush 4 can automatically clean the lower half of the support chain 3, and the debris falls into the collection frame 20 for centralized processing.

[0034] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A laser cutting positioning fixture for guide rail vehicle parts, comprising: a mounting frame (1); characterized in that, It also includes: a square frame (2), rotatably connected to the mounting frame (1); a support chain (3), located inside the mounting frame (1); a wire brush (4), rotatably connected to the inside of the mounting frame (1) at intervals, and the wire brush (4) is in contact with the support chain (3); a rotating assembly, located on the mounting frame (1), for driving the support chain (3) to rotate; a driving assembly, located on the mounting frame (1), for driving the wire brush (4) to rotate; a clamping assembly, located on the square frame (2), for clamping and fixing the workpiece to be processed; and a conveying assembly, located on the mounting frame (1), for conveying the workpiece to be processed.

2. The laser cutting positioning fixture for guide rail vehicle parts according to claim 1, characterized in that, The rotating assembly includes: a brushless motor (5), symmetrically mounted on the inner side of the mounting frame (1); and a connecting cylinder (6), mounted on the brushless motor (5), with the support chain (3) wound between the two connecting cylinders (6).

3. The laser cutting positioning fixture for guide rail vehicle parts according to claim 1, characterized in that, The drive assembly includes: a first motor (7) mounted on the mounting frame (1); a worm (8) rotatably connected to the mounting frame (1), and the end of the worm (8) is connected to the output shaft of the first motor (7); and a worm wheel (9) connected to the end of the wire brush (4), and the worm wheel (9) meshes with the worm (8).

4. The laser cutting positioning fixture for guide rail vehicle parts according to claim 1, characterized in that, The clamping assembly includes: a connecting frame (10), symmetrically connected to the top of the square frame (2); a sliding frame (11), slidably connected to the connecting frame (10); a connecting spring (12), with its two ends connected to the sliding frame (11) and the connecting frame (10) respectively; and a rotating roller (13), rotatably connected to the sliding frame (11).

5. A laser cutting positioning fixture for guide rail vehicle parts according to claim 2, characterized in that, The conveying assembly includes: a connecting plate (14) symmetrically connected to both sides of the mounting frame (1); a second motor (15) mounted on the side of the connecting plate (14); and an air shaft (16) rotatably mounted on the connecting plate (14), with the end of the air shaft (16) connected to the output shaft of the second motor (15).

6. A laser cutting positioning fixture for guide rail vehicle parts according to claim 1, characterized in that, It also includes: a locking bolt (17), which is threaded to the side of the mounting frame (1) and slides through the side of the frame (2).

7. A laser cutting positioning fixture for guide rail vehicle parts according to claim 6, characterized in that, It also includes: a pinch plate (18), which is attached to the end of the locking bolt (17).

8. A laser cutting positioning fixture for guide rail vehicle parts according to claim 1, characterized in that, It also includes: a support plate (19), which is symmetrically connected to the inner wall of the mounting frame (1), and the support plate (19) is in contact with the support chain (3).

9. A laser cutting positioning fixture for guide rail vehicle parts according to claim 1, characterized in that, It also includes: a collection box (20), which is slidably connected to the inside of the mounting box (1); and a handle (21), which is connected to the side of the collection box (20).

10. A laser cutting positioning fixture for guide rail vehicle parts according to claim 5, characterized in that, The height of the air shaft (16) is lower than the height of the connecting cylinder (6).

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