Optical fiber laser cutting positioning device

Abstract

The utility model discloses an optical fiber laser cutting positioning device, which relates to the technical field of positioning devices, and comprises a workbench and a driving mechanism, the bottom of the workbench is fixedly provided with a fixing frame, the top of the workbench is symmetrically and slidably provided with moving rods along the longitudinal direction, and the moving rods are fixedly connected with the output end of the driving mechanism. The driving mechanism can drive the two moving rods to move oppositely in the longitudinal direction. A cavity is formed in the middle of the moving rod, a two-way telescopic mechanism is arranged in the cavity, and the two output ends of the two-way telescopic mechanism extend out of the cavity and are rotationally sleeved with positioning assemblies; the positioning assembly comprises a connecting block, a longitudinal cavity and a vertical cavity are formed in the connecting block respectively, and the two cavities communicate with each other. According to the optical fiber laser cutting positioning device, the driving mechanism and the positioning assembly are arranged in a matched mode, so that a plate is clamped in the horizontal direction and the vertical direction, and the better clamping effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning devices, in particular to a fiber laser cutting positioning device. Background Art

[0002] Laser cutting is a processing method that uses a high-energy laser beam to cut or corrode materials. It is widely used in metal processing, process processing and precision cutting in the manufacturing industry. It usually requires a positioning device to fix it before cutting, but the existing positioning device usually only has a horizontal clamping function, and the vertical direction may be displaced due to slight vibrations. Since laser cutting has the characteristics of high precision and high speed, slight deviations will cause a decrease in cutting accuracy, resulting in reduced cutting quality.

[0003] Therefore, it is necessary to propose a fiber laser cutting positioning device to solve the above problems. Utility Model Content

[0004] Technical problem to be solved: The purpose of the utility model is to provide a fiber laser cutting positioning device to solve the problem that the existing positioning device proposed in the above background technology usually only has a clamping function in the horizontal direction, while the vertical direction may be displaced due to slight vibrations. Since laser cutting has the characteristics of high precision and high speed, slight deviations will cause a decrease in cutting accuracy, resulting in reduced cutting quality.

[0005] Technical solution: To achieve the above purpose, the utility model is implemented through the following technical solutions: a fiber laser cutting positioning device, including a workbench and a driving mechanism, a fixed frame is fixedly installed at the bottom of the workbench, and a moving rod is symmetrically slidably installed on the top of the workbench along the longitudinal direction, and the moving rod is fixedly connected to the output end of the driving mechanism, and the driving mechanism can drive the two moving rods to move toward each other along the longitudinal direction; a cavity is opened in the middle of the moving rod, and a two-way telescopic mechanism is arranged in the cavity, and the two output ends of the two-way telescopic mechanism extend out of the cavity respectively and are rotatably fitted with a positioning component; the positioning component includes a connecting block, and a longitudinal and a vertical chamber are respectively opened inside the connecting block, and the two chambers are connected to each other; a first piston is slidably fitted in the longitudinal direction in the longitudinal chamber, and one end of the first piston is fixedly installed There is a push rod, the other end of the push rod extends between the two moving rods and is fixedly installed with a push plate, and a first spring is sleeved on the push rod between the push plate and the connecting block; a first gear is rotatably installed on the top of the connecting block close to the push plate, and a connecting rod is vertically fixedly installed on the top of the first gear, and a fixed cylinder is vertically connected to the side of the connecting rod facing the push plate; a slider is slidably installed inside the fixed cylinder, and a second spring is provided on the side of the slider away from the push plate, and a connecting rod is fixedly installed on the other side of the push plate, and the other end of the connecting rod extends out of the fixed cylinder and is fixedly installed with a clamping seat; the vertical chamber is located on the side of the connecting block away from the push plate, and a second piston is vertically slidably sleeved in the vertical chamber, and a first rack is fixedly installed on the top of the second piston, and the other end of the first rack extends out of the vertical chamber and meshes with the first gear for transmission.

[0006] Preferably, an installation cavity is provided inside the workbench, and a slide groove connected to the installation cavity is provided on the top of the workbench. The slide groove is arranged longitudinally, and moving blocks are symmetrically slidably installed in the slide groove. The moving blocks are transmission-connected to the driving mechanism, and the two moving blocks are respectively fixedly connected to the moving rods on adjacent sides.

[0007] Preferably, the driving mechanism includes a motor and a second gear rotatably installed in the installation cavity, the motor is transmission connected to the second gear, sliding rods are slidably installed on the front and rear sides of the second gear, the two moving blocks are respectively fixedly connected to the sliding rods on adjacent sides, the left and right sides of the second gear are respectively meshed with second racks, and the ends of the two second racks away from the second gear are respectively fixedly connected to the sliding rods on adjacent sides.

[0008] Preferably, both left and right side walls of the cavity are provided with through threaded holes, and a through limiting hole is provided in the moving rod below the threaded hole. The threaded hole and the limiting hole are parallel to each other and are both arranged in the transverse direction.

[0009] Preferably, the bidirectional telescopic mechanism includes a driving assembly and a screw threadedly mounted in a threaded hole, the thread directions of the two screws are opposite, the ends of the two screws away from each other respectively extend out of the threaded holes and are rotatably mounted with connecting blocks, and a limiting rod is slidably installed in the limiting hole, and the ends of the two limiting rods away from each other are respectively fixedly connected to the connecting blocks on the adjacent sides.

[0010] Preferably, a hexagonal blind hole is axially opened inside the screw, and the blind hole is connected to the cavity. The driving assembly includes a driving rod and a crank handle. The driving rod is adapted to the blind hole. A worm gear is mounted in the middle of the driving rod. Both ends of the driving rod extend into the blind hole respectively. A worm is rotatably installed in the cavity below the worm gear. The worm gear is meshed with the worm for transmission, and one end of the worm extends out of the cavity and is fixedly connected to the crank handle.

[0011] Preferably, the diameter of the longitudinal chamber is larger than the diameter of the vertical cavity, the length of the connecting rod is a, the maximum distance from the center of the first gear to the inner side of the push plate is b, the maximum distance from the center of the first gear to the upper surface of the workbench is c, and in the initial state, the maximum distance between the clamping seat and the connecting rod is d, wherein a>b, c<d.

[0012] Preferably, the pressing seat and the connecting rod are hinged, and under the action of gravity, the bottom surface of the second gear is always parallel to the ground.

[0013] Beneficial effects: Compared with the prior art, the utility model provides a fiber laser cutting positioning device, which has a unique structure and is easy to use. The driving mechanism drives the two moving rods to move toward each other in the longitudinal direction, thereby driving the push plate to clamp the plate horizontally. When the push plate contacts the side of the plate, the plate squeezes the push plate, pushing the first piston to move in the longitudinal chamber, and presses air into the vertical chamber, causing the second piston to rise, and the first rack moves upward accordingly, and through the meshing transmission with the first gear, the first gear rotates, and then the clamping seat contacts the plate, realizing vertical fixation, thereby achieving a better clamping effect.

[0014] In addition, by shaking the crank handle, the driving rod is driven to rotate through the meshing transmission of the worm wheel and the worm. Since the cross-section of the driving rod is hexagonal and the thread directions of the two screws are opposite, when the driving rod rotates, the two screws will be driven to rotate synchronously, and they will be driven to extend out of the threaded holes through the threaded connection, thereby increasing the distance between the two connecting blocks to accommodate plates of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional side view schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a front view schematic diagram of the structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the cross section at AA in the middle;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the cross section at the middle BB;

[0019] Figure 5 For this utility model Figure 2 Schematic diagram of the cross section at CC;

[0020] Figure 6 For this utility model Figure 2 Schematic diagram of the cross section at DD in the middle;

[0021] Figure 7 For this utility model Figure 1 A magnified schematic diagram of the structure of the middle A area;

[0022] Figure 8 For this utility model Figure 6 A magnified schematic diagram of the structure of region B in the middle.

[0023] In the figure: 1. workbench; 2. fixed frame; 3. moving rod; 4. screw; 5. driving rod; 6. worm gear; 7. worm; 8. crank; 9. connecting block; 10. first piston; 11. push rod; 12. push plate; 13. first spring; 14. second piston; 15. first rack; 16. first gear; 17. connecting rod; 18. fixed cylinder; 19. connecting rod; 20. second spring; 21. clamping seat; 22. second gear; 23. second rack; 24. sliding rod; 25. motor; 26. limit rod. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1: This embodiment 1 provides a fiber laser cutting positioning device, which is directly improved on the existing positioning device and has a unique structure. Please refer to Figure 1-8 As shown, it includes a workbench 1 and a driving mechanism, a fixed frame 2 is fixedly installed on the bottom of the workbench 1, and a moving rod 3 is symmetrically slidably installed on the top of the workbench 1 along the longitudinal direction, and the moving rod 3 is fixedly connected to the output end of the driving mechanism, and the driving mechanism can drive the two moving rods 3 to move toward each other along the longitudinal direction; an installation cavity is opened inside the workbench 1, and a slide groove connected to the installation cavity is opened on the top of the workbench 1, the slide groove is arranged along the longitudinal direction, and moving blocks are symmetrically slidably installed in the slide groove, and the moving blocks are transmission-connected to the driving mechanism, and the two moving blocks are respectively fixedly connected to the moving rods 3 on adjacent sides.

[0026] The driving mechanism includes a motor 25 and a second gear 22 rotatably installed in the installation cavity. The motor 25 is connected to the second gear 22 in transmission. Slide rods 24 are slidably installed on the front and rear sides of the second gear 22. The two moving blocks are fixedly connected to the slide rods 24 on the adjacent sides. The left and right sides of the second gear 22 are respectively meshed with second racks 23, and the ends of the two second racks 23 away from the second gear 22 are fixedly connected to the slide rods 24 on the adjacent sides.

[0027] There are many ways to connect the second gear 22 to the motor 25 in transmission. For example, the output shaft of the motor 25 extends into the installation cavity, the second gear 22 is mounted on the output shaft of the motor 25, and the motor 25 drives the second gear 22 to rotate. After the second gear 22 rotates, it meshes with the second racks 23 on the left and right sides respectively, thereby driving the two sliding rods 24 to move toward each other in the longitudinal direction, and then causing the two moving rods 3 to move toward each other in the longitudinal direction.

[0028] A cavity is provided in the middle of the moving rod 3, and a two-way telescopic mechanism is provided in the cavity. The two output ends of the two-way telescopic mechanism extend out of the cavity respectively and are rotatably fitted with a positioning component; the positioning component includes a connecting block 9, and the interior of the connecting block 9 respectively provides longitudinal and vertical chambers, and the two chambers are connected to each other; a through threaded hole is provided on the left and right side walls of the cavity, and a through limiting hole is provided in the moving rod 3 below the threaded hole, the threaded hole and the limiting hole are parallel to each other and are both arranged in the horizontal direction; the two-way telescopic mechanism includes a driving assembly and a screw rod 4 threadedly fitted in the threaded hole, the thread directions of the two screw rods 4 are opposite, and the ends of the two screw rods 4 away from each other extend out of the threaded holes respectively and are rotatably fitted with a connecting block 9, and a limiting rod 26 is slidably installed in the limiting hole, and the ends of the two limiting rods 26 away from each other are respectively fixedly connected to the connecting block 9 on the adjacent side.

[0029] A hexagonal blind hole is axially provided inside the screw 4, and the blind hole is connected to the cavity. The driving assembly includes a driving rod 5 and a crank 8. The driving rod 5 is adapted to the blind hole. A worm wheel 6 is mounted in the middle of the driving rod 5, and both ends of the driving rod 5 extend into the blind hole respectively. A worm 7 is rotatably installed in the cavity below the worm wheel 6. The worm wheel 6 and the worm 7 are meshed for transmission. One end of the worm 7 extends out of the cavity and is fixedly connected to the crank 8; the crank 8 drives the driving rod 5 to rotate through the meshing transmission of the worm wheel 6 and the worm 7. Since the cross-section of the driving rod 5 is hexagonal, the driving rod 5 will synchronously drive the screw 4 to rotate when it rotates. Since the thread directions of the two screws 4 are opposite, the two screws 4 are driven to extend out of their threaded holes respectively through the threaded connection.

[0030] A first piston 10 is longitudinally slidably mounted in the longitudinal chamber, a push rod 11 is fixedly mounted on one end of the first piston 10, the other end of the push rod 11 extends between the two moving rods 3 and is fixedly mounted with a push plate 12, a first spring 13 is mounted on the push rod 11 between the push plate 12 and the connecting block 9; in the initial state, the first spring 13 pushes the push plate 12, so that the push plate 12 and the connecting block 9 move away from each other, a first gear 16 is rotatably mounted on the side of the top of the connecting block 9 close to the push plate 12, a connecting rod 17 is vertically fixedly mounted on the top of the first gear 16, and a fixing cylinder 18 is vertically connected to the connecting rod 17 on the side facing the push plate 12.

[0031] A slider is slidably installed inside the fixed cylinder 18, and a second spring 20 is provided on the side of the slider away from the push plate 12. A connecting rod 19 is fixedly installed on the other side of the push plate 12, and the other end of the connecting rod 19 extends out of the fixed cylinder 18 and is fixedly installed with a clamping seat 21; the diameter of the longitudinal chamber is greater than the diameter of the vertical chamber, the length of the connecting rod 17 is a, the maximum distance from the center of the first gear 16 to the inner side of the push plate 12 is b, and the maximum distance from the center of the first gear 16 to the upper surface of the workbench 1 is c. In the initial state, the maximum distance between the clamping seat 21 and the connecting rod 17 is d, wherein a>b, c<d, and when the first piston 10 moves, the second piston 14 can be synchronously pushed to move a longer distance; the vertical chamber is located on the side of the connecting block 9 away from the push plate 12, and the second piston 14 is vertically slidably sleeved in the vertical chamber, and the first rack 15 is fixedly installed on the top of the second piston 14, and the other end of the first rack 15 extends out of the vertical chamber and meshes with the first gear 16 for transmission.

[0032] When we use the positioning device to position the plate, we first adjust the position of the connecting block 9 according to the length of the plate, and shake the handle 8. The handle 8 drives the driving rod 5 to rotate through the meshing transmission of the worm wheel 6 and the worm 7. Since the cross-section of the driving rod 5 is hexagonal, the driving rod 5 will synchronously drive the screw 4 to rotate when it rotates. Since the thread directions of the two screws 4 are opposite, the two screws 4 are driven to extend out of the threaded holes respectively through the threaded connection, so that the connecting blocks 9 at both ends of the two-way telescopic mechanism are respectively close to the two ends of the plate, and then the motor 25 is started. The motor 25 drives the second gear 22 to rotate. After the second gear 22 rotates, it meshes with the second racks 23 on the left and right sides respectively, thereby driving the two sliding rods 24 to move toward each other in the longitudinal direction, and then the two moving rods 3 move toward each other in the longitudinal direction, and the plate is clamped in the horizontal direction through the push plate 12.

[0033] When the push plate 12 contacts the side of the plate, the plate squeezes the push plate 12, thereby driving the first piston 10 to move in the longitudinal chamber. The first piston 10 presses the air in the longitudinal chamber into the vertical chamber, causing the second piston 14 to rise, thereby driving the first rack 15 to move upward. Since the first rack 15 is meshed with the first gear 16, the first gear 16 rotates, and then the bottom surface of the clamping seat 21 contacts the plate, thereby fixing the plate vertically. Through double clamping in the horizontal and vertical directions, a better clamping effect is achieved.

[0034] Embodiment 2: Embodiment 2 is different from Embodiment 1 in that Figure 6 and 8 As shown, the pressing seat 21 and the connecting rod 19 are hinged, and under the action of gravity, the bottom surface of the second gear 22 is always parallel to the ground, so that the second gear 22 can vertically contact the plate to achieve a better clamping effect.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fiber laser cutting positioning device, comprising a workbench (1) and a driving mechanism, characterized in that: A fixed frame (2) is fixedly installed at the bottom of the workbench (1), and a moving rod (3) is symmetrically slidably installed on the top of the workbench (1) along the longitudinal direction, and the moving rod (3) is fixedly connected to the output end of the driving mechanism, and the driving mechanism can drive the two moving rods (3) to move toward each other along the longitudinal direction; a cavity is opened in the middle of the moving rod (3), and a two-way telescopic mechanism is arranged in the cavity, and two output ends of the two-way telescopic mechanism respectively extend out of the cavity and are rotatably sleeved with a positioning component; the positioning component comprises a connecting block (9), and the interior of the connecting block (9) is respectively provided with a longitudinal chamber and a vertical chamber, and the two chambers are connected to each other; a first piston (10) is slidably sleeved in the longitudinal direction in the longitudinal chamber, and a push rod (11) is fixedly installed at one end of the first piston (10), and a push plate (12) is fixedly installed at the other end of the push rod (11) extending between the two moving rods (3) and fixedly installed, and a push plate (12) is sleeved on the push rod (11) between the push plate (12) and the connecting block (9). a first spring (13); a first gear (16) is rotatably mounted on a side of the top of the connecting block (9) close to the push plate (12); a connecting rod (17) is vertically fixedly mounted on the top of the first gear (16); a fixed cylinder (18) is vertically connected to the side of the connecting rod (17) facing the push plate (12); a slider is slidably mounted inside the fixed cylinder (18); a second spring (20) is provided on the side of the slider away from the push plate (12); a connecting rod (19) is fixedly mounted on the other side of the push plate (12); the other end of the connecting rod (19) extends out of the fixed cylinder (18) and is fixedly mounted with a pressing seat (21); the vertical chamber is located on a side of the connecting block (9) away from the push plate (12); a second piston (14) is vertically slidably sleeved in the vertical chamber; a first rack (15) is fixedly mounted on the top of the second piston (14); the other end of the first rack (15) extends out of the vertical chamber and meshes with the first gear (16) for transmission.

2. The optical fiber laser cutting positioning device according to claim 1, characterized in that: The workbench (1) has an installation cavity formed inside, and a slide groove communicating with the installation cavity is formed on the top of the workbench (1). The slide groove is arranged in the longitudinal direction, and moving blocks are symmetrically slidably installed in the slide groove. The moving blocks are transmission-connected to the driving mechanism, and the two moving blocks are respectively fixedly connected to the moving rods (3) on adjacent sides.

3. The optical fiber laser cutting positioning device according to claim 2, characterized in that: The driving mechanism comprises a motor (25) and a second gear (22) rotatably mounted in the mounting cavity, the motor (25) being transmission-connected to the second gear (22), a slide bar (24) being slidably mounted on both the front and rear sides of the second gear (22), two moving blocks being respectively fixedly connected to the slide bars (24) on the adjacent sides, a second rack (23) being meshed and transmission-connected on the left and right sides of the second gear (22), and ends of the two second racks (23) away from the second gear (22) being respectively fixedly connected to the slide bars (24) on the adjacent sides.

4. The optical fiber laser cutting positioning device according to claim 1, characterized in that: The left and right side walls of the cavity are both provided with through threaded holes, and a through limiting hole is provided in the moving rod (3) below the threaded holes. The threaded holes and the limiting hole are parallel to each other and are both arranged in the transverse direction.

5. The optical fiber laser cutting positioning device according to claim 4, characterized in that: The bidirectional telescopic mechanism comprises a driving assembly and a screw rod (4) threadedly sleeved in a threaded hole, the threads of the two screw rods (4) are in opposite directions, the ends of the two screw rods (4) that are away from each other respectively extend out of the threaded hole and are rotatably sleeved with a connecting block (9), a limiting rod (26) is slidably installed in the limiting hole, and the ends of the two limiting rods (26) that are away from each other are respectively fixedly connected to the connecting block (9) on the adjacent side.

6. The optical fiber laser cutting positioning device according to claim 5, characterized in that: A hexagonal blind hole is axially provided inside the screw rod (4), the blind hole being communicated with the cavity. The driving assembly comprises a driving rod (5) and a crank handle (8), the driving rod (5) being adapted to the blind hole, a worm wheel (6) being sleeved on the middle of the driving rod (5), both ends of the driving rod (5) respectively extending into the blind hole, a worm (7) being rotatably mounted in the cavity below the worm wheel (6), the worm wheel (6) and the worm (7) being meshed for transmission, one end of the worm (7) extending out of the cavity and being fixedly connected to the crank handle (8).

7. The optical fiber laser cutting positioning device according to claim 1, characterized in that: The diameter of the longitudinal chamber is greater than the diameter of the vertical cavity, the length of the connecting rod (17) is a, the maximum distance from the center of the first gear (16) to the inner side of the push plate (12) is b, the maximum distance from the center of the first gear (16) to the upper surface of the workbench (1) is c, and in the initial state, the maximum distance between the clamping seat (21) and the connecting rod (17) is d, wherein a>b, c<d.

8. The optical fiber laser cutting positioning device according to claim 1, characterized in that: The pressing seat (21) and the connecting rod (19) are hinged, and under the action of gravity, the bottom surface of the second gear (22) is always parallel to the ground.

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