CN221582395U - Laser cutting positioning device - Google Patents

Abstract

The application belongs to the technical field of laser cutting, and discloses a laser cutting positioning device, which comprises a workbench, a cutting frame fixed at the top of the workbench and a cutting assembly arranged at the top of the cutting frame, and is characterized in that: the work bench top is provided with the rotation seat, rotates the seat top and is provided with L shape spout, rotates the seat top and is provided with the clamping component that is used for preventing that the cutting member rocked, and the clamping component is provided with the adjusting part that is used for adjusting the cutting member of waiting to cut including setting up at the rotation seat top and about rotating the axis symmetric distribution of seat, fix at the splint bottom and with L shape spout sliding fit's L shape piece, run through the rotation seat lateral wall and rotate the first threaded rod of being connected with L shape spout lateral wall, fix the crank at first threaded rod tip, fix the joining in marriage plywood on two splint lateral walls and fix the rubber pad on joining in marriage the plywood lateral wall. According to the application, the probability that the cutting effect is affected by shaking caused by the collision of external force when the cutting piece is cut is reduced.

Description

Laser cutting positioning device

Technical Field

The utility model relates to the technical field of laser cutting, in particular to a laser cutting positioning device.

Background Art

Laser cutting uses a focused high-power density laser beam to irradiate the workpiece, causing the irradiated material to melt, vaporize, ablate or reach the ignition point quickly, and at the same time uses a high-speed airflow coaxial with the beam to blow away the molten material, thereby cutting the workpiece. Laser cutting is one of the thermal cutting methods.

A Chinese utility model patent with announcement number CN218016475U discloses a laser cutting device, including a bottom plate, a lateral moving unit and a longitudinal moving unit, wherein both sides of the upper surface of the bottom plate are provided with concave grooves, and the four corners of the lower surface of the bottom plate are provided with universal wheels, and a top plate is provided directly above the bottom plate, and a strip hole is provided through the middle of the upper end of the top plate, wherein the lateral moving unit includes a driving motor, and the driving motor is provided at the left position of the front end of the bottom plate, and threaded rods and first guide rods are provided on both sides of the inner part of the concave groove The output end of the driving motor is fixedly connected to the driving wheel, and the driving wheel is connected to the driven wheel through a conveyor belt. Through holes are penetrated on both sides of the front end of the bottom plate, and the inner wall of the through hole is connected to the outer ring of the bearing, and the inner ring of the bearing is fixedly connected to the surface of one end of the threaded rod. The driving wheel and the middle part of the back of the driven wheel are fixedly installed with a threaded rod, and the end of the threaded rod away from the driving motor is fixedly connected to a limited block, and a movable block is threadedly connected to the surface of the threaded rod, and the movable block is slidably connected to the first guide rod, and the upper end of the movable block is fixedly connected to the top plate.

With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during use of the above-mentioned laser cutting device, the cutting piece needs to be placed on the base plate and then cut. However, when the cutting piece is directly placed on the base plate for cutting, it is easy to be collided by external force, causing the cutting piece to shake, thereby affecting the cutting effect.

Utility Model Content

In order to solve the above problems, the utility model provides a laser cutting positioning device.

The above technical objectives of the utility model are achieved through the following technical solutions: a laser cutting positioning device, comprising a workbench, a cutting frame fixed on the top of the workbench, and a cutting assembly arranged on the top of the cutting frame, characterized in that: a rotating seat is arranged on the top of the workbench, an L-shaped slide groove is arranged on the top of the rotating seat, a clamping assembly for preventing the cutting piece from shaking is arranged on the top of the rotating seat, and the clamping assembly includes two clamping plates arranged on the top of the rotating seat and symmetrically distributed about the axis of the rotating seat, an L-shaped block fixed to the bottom of the clamping plate and slidably matched with the L-shaped slide groove, and a clamping assembly penetrating the side wall of the rotating seat and slidably matched with the L-shaped slide groove. A first threaded rod rotatably connected to the groove side wall, a crank fixed at the end of the first threaded rod, a matching plate fixed on the side wall on the side where the two clamps are close to each other, and a rubber pad fixed on the side wall of the matching plate away from the clamp, the first threaded rod passes through the L-shaped block and is threadedly connected to the L-shaped block, the first threaded rod is a double-headed threaded rod with threads of equal pitch and opposite rotation at both ends, the number of the L-shaped blocks is equal to the number of the clamps and the positions correspond one to one, the two L-shaped blocks are symmetrically distributed on the two sections of the thread of the first threaded rod, and an adjustment component for adjusting the cutting piece to be cut is provided on the top of the workbench.

By adopting the above technical scheme, before the staff prepares to cut the cutting piece, they need to first turn the crank, which drives the first threaded rod to rotate. Affected by the circumferential limit of the L-shaped slide groove, the first threaded rod drives the L-shaped block to move. Since the first threaded rod is a double-headed threaded rod with threads of equal pitch and opposite rotation at both ends, the two L-shaped blocks are close to each other, the two L-shaped blocks drive the two clamps to move, and the two clamps drive the two matching plates to move. When the two matching plates are close to each other at an appropriate distance, the cutting piece is placed in the middle of the two matching plates, and the cutting piece can be completely fixed by turning the crank. At this time, the staff can perform cutting actions on the cutting piece through the cutting assembly, which reduces the probability of the cutting piece being shaken by external force collision during cutting, affecting the cutting effect.

The cam is annularly fixed to the bottom of the workbench, and the cam is secured to the bottom of the workbench with an angular channel formed between a threaded column and a toothed plate. The cam is secured to the bottom of the workbench with an angular channel formed between a threaded column and a toothed plate. The cam is secured to the bottom of the workbench with an angular channel formed between a threaded column and a toothed plate.

By adopting the above technical solution, when the staff needs to cut the cutting piece at different angles, the staff needs to rotate the operating block, the operating block drives the adjusting rod to rotate, the adjusting rod drives the first active bevel gear to rotate, the first active bevel gear drives the first driven bevel gear to rotate, the first driven bevel gear drives the fixed rod to rotate, and the fixed rod drives the rotating seat to rotate, thereby realizing the vertical angle adjustment of the cutting piece. When the lateral angle of the cutting piece needs to be adjusted, the staff needs to rotate the cross rod, the cross rod drives the threaded column to rotate, the threaded column drives the gear to rotate, the gear drives the meshing annular rack to rotate, and the annular rack drives the rotating seat to rotate laterally, so as to meet the staff's work needs of cutting the cutting piece at different angles.

Furthermore, a first bolt is provided through the rubber pad and is clearance-matched with the rubber pad and the matching plate, and an end of the first bolt is threadedly connected to the side wall of the clamping plate.

By adopting the above technical solution, the provision of the first bolt makes it easy for the staff to install and disassemble the matching plate, and is beneficial for the staff to replace the matching plate that matches different cutting parts.

Furthermore, a ball is arranged between the round block and the rotating seat, a lower arc groove for accommodating the ball is arranged on the top of the round block, an upper arc groove for accommodating the ball is arranged at a position corresponding to the lower arc groove at the bottom of the rotating seat, and a second bolt that cooperates with the clearance of the rotating seat is penetrated through the bottom wall of the L-shaped slide groove, and the lower end of the second bolt is threadedly connected to the top of the round block.

By adopting the above technical solution, the provision of the ball reduces the friction generated when the rotating seat and the round block rotate, and the provision of the second bolt makes it convenient for workers to install and disassemble the rotating seat.

Furthermore, an accommodating hole for accommodating the head of the first bolt is provided on the inner bottom wall of the L-shaped slide groove.

By adopting the above technical solution and setting the accommodating hole, the probability of the L-shaped block being unable to move due to the influence of the second bolt head when sliding in the L-shaped sliding groove is reduced.

Furthermore, a limiting block which is matched with the thread of the threaded column is sleeved on the threaded column, and a rubber sheet is fixed on the side wall of the limiting block close to the round block.

By adopting the above technical solution, when the lateral rotation limit of the rotating seat needs to be fixed, the staff only needs to rotate the limit block to make the limit block press against the annular rack. The setting of the rubber sheet further increases the friction between the limit block and the annular rack.

Furthermore, the cutting assembly includes a first motor fixed to the side wall of the cutting frame, a second threaded rod penetrating the side wall of the cutting frame and fixed to the output end of the first motor, a guide rod fixed to the inner wall of the cutting frame, a first slider sleeved on the second threaded rod and threadedly connected to the second threaded rod, a second motor fixed to the side wall of the first slider, a third threaded rod penetrating the side wall of the first slider and fixed to the output end of the second motor, a second slider sleeved on the third threaded rod and threadedly connected to the third threaded rod, a third motor fixed to the side wall of the second slider, a second active bevel gear fixed to the output end of the third motor, a fourth threaded rod rotatably installed at the bottom of the second slider, a second driven bevel gear fixed on the fourth threaded rod and meshed with the second active bevel gear, a limiting rod fixed to the bottom of the second slider, a support plate sleeved on the fourth threaded rod and threadedly connected to the fourth threaded rod, and The laser cutting head is fixed to the bottom of the support plate, a closing plate is provided at the bottom of the second slider, a third bolt is provided on the closing plate and is clearance-matched with the closing plate, an end of the third bolt is threadedly connected to the bottom of the second slider, a second slide groove is provided at the bottom of the first slider and is slidably matched with the second slider, a mounting hole for accommodating the second active bevel gear and the second driven bevel gear is provided at the bottom of the second slider, the guide rod passes through the first slider and is clearance-matched with the first slider, the second threaded rod passes through the first slider and is threadedly connected to the first slider, the third threaded rod passes through the second slider and is threadedly connected to the second slider, an end of the second threaded rod away from the first motor is rotatably connected to the inner wall of the cutting frame, an end of the third threaded rod away from the second motor is rotatably connected to the side wall of the second slide groove, and the limit rod passes through the support plate and is clearance-matched with the support plate.

By adopting the above technical solution, when the cutting piece needs to be cut after the cutting piece is clamped, the staff needs to start the first motor. After the first motor is started, it drives the second threaded rod to rotate. Restricted by the circumferential movement of the guide rod, the second threaded rod drives the first slider to move vertically. At this time, the second motor is started. After the second motor is started, it drives the third threaded rod to rotate. Restricted by the circumferential movement of the second slide groove, the third threaded rod drives the second slider to move vertically in the second slide groove. When the height of the laser cutting head needs to be adjusted, the third motor needs to be started. After the third motor is started, it drives the fourth threaded rod to rotate. Restricted by the circumferential movement of the limiting rod, the fourth threaded rod drives the support plate to be lifted and lowered, and the support plate drives the laser cutting head to be lifted and lowered, so that the staff can cut cutting pieces with different needs.

In summary, the utility model has the following beneficial effects:

1. In the present application, before the staff prepares to perform cutting action on the cutting piece, it is necessary to first turn the crank handle, which drives the first threaded rod to rotate. Affected by the circumferential limit of the L-shaped slide groove, the first threaded rod drives the L-shaped block to move. Since the first threaded rod is a double-headed threaded rod with threads of equal pitch and opposite rotation at both ends, the two L-shaped blocks are close to each other, and the two L-shaped blocks drive the two clamping plates to move, and the two clamping plates drive the two matching plates to move. When the two matching plates are close to each other at an appropriate distance, the cutting piece is placed in the middle of the two matching plates, and the cutting piece can be completely fixed by turning the crank handle. At this time, the staff can perform cutting action on the cutting piece through the cutting assembly, which reduces the probability that the cutting piece is shaken by external force collision during cutting, affecting the cutting effect;

2. In the present application, when the staff needs to cut the cutting piece at different angles, the staff needs to rotate the operating block, the operating block drives the adjusting rod to rotate, the adjusting rod drives the first active bevel gear to rotate, the first active bevel gear drives the first driven bevel gear to rotate, the first driven bevel gear drives the fixed rod to rotate, the fixed rod drives the rotating seat to rotate, thereby realizing the vertical angle adjustment of the cutting piece. When the lateral angle of the cutting piece needs to be adjusted, the staff needs to rotate the cross rod, the cross rod drives the threaded column to rotate, the threaded column drives the gear to rotate, the gear drives the meshing annular rack to rotate, and the annular rack drives the rotating seat to rotate laterally, so as to meet the staff's work needs of cutting the cutting piece at different angles.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of an embodiment of the utility model;

FIG2 is a schematic cross-sectional structure diagram of a cutting assembly for highlighting an embodiment of the present utility model;

FIG3 is a schematic cross-sectional structure diagram of an embodiment of the utility model for highlighting a clamping assembly;

FIG4 is a schematic cross-sectional structure diagram of a highlight adjustment component according to an embodiment of the present utility model;

FIG5 is a schematic structural diagram of an embodiment of the utility model for highlighting the connection relationship between the closing plate and the second slider;

6 is a schematic plan view of the connection relationship between the rotating seat and the round block in the embodiment of the utility model;

FIG7 is a schematic structural diagram of an embodiment of the utility model for highlighting the connection relationship between the threaded column and the limit block;

FIG. 8 is a schematic diagram of the structure of an embodiment of the utility model for highlighting the upper arc groove.

In the figure: 1, workbench; 11, cutting frame; 12, mounting groove; 13, receiving groove; 2, cutting assembly; 21, first motor; 22, second threaded rod; 23, guide rod; 24, first slider; 241, second slide groove; 25, second motor; 26, third threaded rod; 27, second slider; 271, closing plate; 272, mounting hole; 273, third bolt; 28, third motor; 29, second active bevel gear; 210, fourth threaded rod; 211, second driven bevel gear; 212, limit rod; 213, support plate; 214, laser cutting head; 3, rotating seat; 31, L-shaped Slide groove; 311, second bolt; 312, receiving hole; 32, upper arc groove; 4, clamping assembly; 41, clamping plate; 42, L-shaped block; 43, first threaded rod; 44, crank; 45, matching plate; 46, rubber pad; 5, adjustment assembly; 51, round block; 511, lower arc groove; 52, fixing rod; 53, annular rack; 54, threaded column; 541, cross rod; 542, limit block; 543, rubber sheet; 55, gear; 56, mounting plate; 57, adjustment rod; 571, operating block; 58, first active bevel gear; 59, first driven bevel gear; 6, first bolt; 7, ball.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

As shown in FIGS. 1-8 , the embodiment of the present application discloses a laser cutting positioning device, comprising a workbench 1, a cutting assembly 2, a clamping assembly 4 and an adjusting assembly 5. A cutting frame 11 is fixed on the top of the workbench 1, a rotating seat 3 is arranged on the top of the workbench 1, and a mounting groove 12 is arranged on the top of the workbench 1. In this embodiment, an L-shaped slide groove 31 is arranged on the top of the rotating seat 3.

The cutting assembly 2 is arranged on the top of the cutting frame 11, and the cutting assembly 2 includes a first motor 21, a second threaded rod 22, a guide rod 23, a first slider 24, a second motor 25, a third threaded rod 26, a second slider 27, a third motor 28, a second active bevel gear 29, a fourth threaded rod 210, a second driven bevel gear 211, a limit rod 212, a support plate 213 and a laser cutting head 214. The first motor 21 is fixed on the side wall of the cutting frame 11, the second threaded rod 22 penetrates the side wall of the cutting frame 11 and is fixedly connected to the output end of the first motor 21, and one end of the second threaded rod 22 away from the first motor 21 is rotatably connected to the inner wall of the cutting frame 11. The guide rod 23 is fixed on the inner wall of the cutting frame 11, the first slider 24 is sleeved on the second threaded rod 22 and is threadedly connected to the second threaded rod 22, the guide rod 23 penetrates the first slider 24 and is clearance-matched with the first slider 24. The second motor 25 is fixed on the side wall of the first slider 24, and the third threaded rod 26 penetrates the side wall of the first slider 24 and is fixedly connected to the output end of the second motor 25. The second slider 27 is sleeved on the third threaded rod 26 and is threadedly connected with the third threaded rod 26, and the third threaded rod 26 penetrates the second slider 27 and is threadedly connected with the second slider 27. The third motor 28 is fixed on the side wall of the second slider 27, the second active bevel gear 29 is fixed on the end of the output end of the third motor 28, and the second driven bevel gear 211 is fixed on the fourth threaded rod 210 and meshes with the second active bevel gear 29. The limit rod 212 is fixed to the bottom of the second slider 27, the support plate 213 is sleeved on the fourth threaded rod 210 and is threadedly connected with the fourth threaded rod 210, the limit rod 212 penetrates the support plate 213 and is clearance-matched with the support plate 213, and the laser cutting head 214 is fixed to the bottom of the support plate 213. In this embodiment, a closing plate 271 is provided at the bottom of the second slider 27. A third bolt 273 is penetrated on the closing plate 271 and is clearance-matched with the closing plate 271, and the end of the third bolt 273 is threadedly connected with the bottom of the second slider 27. The bottom of the first slider 24 is provided with a second slide groove 241 that is slidably matched with the second slider 27, and the bottom of the second slider 27 is provided with a mounting hole 272 for accommodating the second active bevel gear 29 and the second driven bevel gear 211. The second threaded rod 22 passes through the first slider 24 and is threadedly connected to the first slider 24. The end of the third threaded rod 26 away from the second motor 25 is rotatably connected to the side wall of the second slide groove 241, the axis of the output end of the first motor 21 coincides with the axis of the second threaded rod 22, the axis of the output end of the second motor 25 coincides with the axis of the third threaded rod 26, the axis of the output end of the third motor 28 coincides with the axis of the second active bevel gear 29, and the axis of the fourth threaded rod 210 coincides with the axis of the second driven bevel gear 211.

When the cutting piece needs to be cut after the cutting piece is clamped, the staff needs to start the first motor 21. After the first motor 21 is started, it drives the second threaded rod 22 to rotate. Restricted by the circumferential movement of the guide rod 23, the second threaded rod 22 drives the first slider 24 to move vertically. At this time, the second motor 25 is started. After the second motor 25 is started, it drives the third threaded rod 26 to rotate. Restricted by the circumferential movement of the second slide groove 241, the third threaded rod 26 drives the second slider 27 to move vertically in the second slide groove 241. When the height of the laser cutting head 214 needs to be adjusted, the third motor 28 needs to be started. After the third motor 28 is started, it drives the fourth threaded rod 210 to rotate. Restricted by the circumferential movement of the limiting rod 212, the fourth threaded rod 210 drives the support plate 213 to be lifted and lowered, and the support plate 213 drives the laser cutting head 214 to be lifted and lowered, so that the staff can cut cutting pieces with different needs.

The clamping assembly 4 is arranged at the top of the rotating seat 3 and is used to prevent the cutting piece from shaking. The clamping assembly 4 includes a clamping plate 41, an L-shaped block 42, a first threaded rod 43, a crank 44, a matching plate 45 and a rubber pad 46. Two clamping plates 41 are provided, and the two clamping plates 41 are arranged at the top of the rotating seat 3 and are symmetrically distributed about the axis of the rotating seat 3. The L-shaped block 42 is fixed to the bottom of the clamping plate 41 and is slidably matched with the L-shaped slide groove 31. The first threaded rod 43 passes through the side wall of the rotating seat 3 and is rotatably connected to the side wall of the L-shaped slide groove 31. The crank 44 is fixed to the end of the first threaded rod 43, the matching plate 45 is fixed to the side wall of the two clamping plates 41 on the side close to each other, and the rubber pad 46 is fixed to the side wall of the matching plate 45 away from the clamping plate 41. In this embodiment, the first threaded rod 43 passes through the L-shaped block 42 and is threadedly connected to the L-shaped block 42. The first threaded rod 43 is a double-headed threaded rod with threads with equal pitches and opposite rotation directions at both ends. The number of L-shaped blocks 42 is equal to the number of clamps 41 and their positions correspond one to one. The two L-shaped blocks 42 are symmetrically distributed on the two sections of the thread of the first threaded rod 43.

Before the staff prepares to cut the cutting piece, they need to first turn the crank 44. The crank 44 drives the first threaded rod 43 to rotate. Affected by the circumferential limit of the L-shaped slide groove 31, the first threaded rod 43 drives the L-shaped block 42 to move. Since the first threaded rod 43 is a double-headed threaded rod with threads of equal pitch and opposite rotation at both ends, the two L-shaped blocks 42 are close to each other, and the two L-shaped blocks 42 drive the two clamps 41 to move, and the two clamps 41 drive the two matching plates 45 to move. When the two matching plates 45 are close to each other at an appropriate distance, the cutting piece is placed in the middle position of the two matching plates 45, and the cutting piece is completely fixed by turning the crank 44. At this time, the staff can perform the cutting action on the cutting piece through the cutting assembly 2, which reduces the probability of the cutting piece being shaken by external force collision during cutting, affecting the cutting effect.

The adjusting assembly 5 is arranged on the top of the workbench 1 and is used to adjust the cutting piece to be cut. The adjusting assembly 5 includes a round block 51, a fixing rod 52, an annular rack 53, a threaded column 54, a gear 55, a mounting plate 56, an adjusting rod 57, a first active bevel gear 58 and a first driven bevel gear 59. The round block 51 is arranged in the mounting groove 12. Specifically, the fixing rod 52 is a horizontally arranged round rod-shaped structure. Two fixing rods 52 are provided. The ends of the two fixing rods 52 close to each other are respectively fixed to the side walls of the round block 51 on both sides of the round block 51. The two fixing rods 52 are rotatably connected to the side walls of the mounting groove 12 on both sides. The annular rack 53 is fixedly sleeved at the bottom of the rotating seat 3, and the threaded column 54 is rotatably mounted on the side wall of the round block 51. A cross rod 541 is fixed to the end of the threaded column 54 away from the round block 51. A limit block 542 is sleeved on the threaded column 54 and is threadedly matched with the threaded column 54. A rubber sheet 543 is fixed on the side wall of the limit block 542 close to the round block 51. When the lateral rotation of the rotating seat 3 needs to be limited and fixed, the staff needs to rotate the limit block 542 so that the limit block 542 is pressed against the annular rack 53. The setting of the rubber sheet 543 further increases the friction between the limit block 542 and the annular rack 53. The gear 55 is fixed to the end of the threaded column 54 and meshes with the annular rack 53. The mounting plate 56 is set on the top of the workbench 1. The adjustment rod 57 is set through the mounting plate 56 and is in clearance with the mounting plate 56. The top of the adjustment rod 57 is fixed with an operating block 571. The first active bevel gear 58 is fixed to the lower end of the adjustment rod 57, and the first driven bevel gear 59 is fixed to the end of the fixing rod 52 near the side of the mounting plate 56 and meshes with the first active bevel gear 58. In this embodiment, a receiving groove 13 for receiving the first active bevel gear 58 and the first driven bevel gear 59 is provided on the top of the workbench 1, and the cross section of the mounting plate 56 is T-shaped, and the bottom of the mounting plate 56 is plugged into and matched with the receiving groove 13.

When the staff needs to cut the cutting piece at different angles, the staff needs to rotate the operating block 571, the operating block 571 drives the adjusting rod 57 to rotate, the adjusting rod 57 drives the first active bevel gear 58 to rotate, the first active bevel gear 58 drives the first driven bevel gear 59 to rotate, the first driven bevel gear 59 drives the fixing rod 52 to rotate, the fixing rod 52 drives the rotating seat 3 to rotate, thereby realizing the vertical angle adjustment of the cutting piece. When the lateral angle of the cutting piece needs to be adjusted, the staff needs to rotate the cross rod 541, the cross rod 541 drives the threaded column 54 to rotate, the threaded column 54 drives the gear 55 to rotate, the gear 55 drives the meshing annular rack 53 to rotate, and the annular rack 53 drives the rotating seat 3 to rotate laterally, so as to meet the staff's work needs of cutting the cutting piece at different angles.

In order to facilitate the staff to install and disassemble the matching plate 45, a first bolt 6 is provided through the rubber pad 46, which is loosely matched with the rubber pad 46 and the matching plate 45. The end of the first bolt 6 is threadedly connected to the side wall of the clamping plate 41, which is convenient for the staff to replace the matching plate 45 matching different cutting parts.

In order to facilitate the staff to install and disassemble the rotating seat 3, a ball 7 is arranged between the block 51 and the rotating seat 3, a lower arc groove 511 for accommodating the ball 7 is arranged on the top of the block 51, and an upper arc groove 32 for accommodating the ball 7 is arranged at the bottom of the rotating seat 3 corresponding to the lower arc groove 511. A second bolt 311 that is clearance-matched with the rotating seat 3 is penetrated through the inner bottom wall of the L-shaped slide groove 31, and the lower end of the second bolt 311 is threadedly connected to the top of the block 51. The arrangement of the ball 7 reduces the friction generated when the rotating seat 3 and the block 51 rotate.

In order to reduce the probability that the L-shaped block 42 is unable to move due to the influence of the head of the second bolt 311 when sliding in the L-shaped slot 31, an accommodating hole 312 for accommodating the head of the first bolt 6 is provided on the inner bottom wall of the L-shaped slot 31.

The use principle of a laser cutting positioning device in the present embodiment is as follows: before the staff prepares to cut the cutting piece, it is necessary to first turn the crank 44, and the crank 44 drives the first threaded rod 43 to rotate. Affected by the circumferential limit of the L-shaped slide groove 31, the first threaded rod 43 drives the L-shaped block 42 to move. Since the first threaded rod 43 is a double-headed threaded rod with threads of equal pitch and opposite rotation at both ends, the two L-shaped blocks 42 are close to each other, and the two L-shaped blocks 42 drive the two clamping plates 41 to move, and the two clamping plates 41 drive the two matching plates 45 to move. When the distance between the two matching plates 45 is appropriate, the cutting piece is placed in the middle of the two matching plates 45, and the cutting piece is completely fixed by turning the crank 44. At this time, the staff needs to start the first motor 21. After the first motor 21 is started The second threaded rod 22 is driven to rotate. Restricted by the circumferential movement of the guide rod 23, the second threaded rod 22 drives the first slider 24 to move vertically. At this time, the second motor 25 is started. After the second motor 25 is started, it drives the third threaded rod 26 to rotate. Restricted by the circumferential movement of the second slide groove 241, the third threaded rod 26 drives the second slider 27 to move vertically in the second slide groove 241. When the height of the laser cutting head 214 needs to be adjusted, the third motor 28 needs to be started. After the third motor 28 is started, it drives the fourth threaded rod 210 to rotate. Restricted by the circumferential movement of the limiting rod 212, the fourth threaded rod 210 drives the support plate 213 to be lifted and lowered, and the support plate 213 drives the laser cutting head 214 to be lifted and lowered to complete the cutting operation, thereby reducing the probability that the cutting piece is shaken by external force collision during cutting, affecting the cutting effect.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (7)

1. A laser cutting positioning device, comprising a workbench (1), a cutting frame (11) fixed on the top of the workbench (1), and a cutting assembly (2) arranged on the top of the cutting frame (11), wherein: a rotating seat (3) is arranged on the top of the rotating seat (3), an L-shaped slide groove (31) is arranged on the top of the rotating seat (3), a clamping assembly (4) for preventing the cutting piece from shaking is arranged on the top of the rotating seat (3), and the clamping assembly (4) comprises two clamping plates (41) arranged on the top of the rotating seat (3) and symmetrically distributed about the axis of the rotating seat (3), an L-shaped block (42) fixed on the bottom of the clamping plate (41) and slidably matched with the L-shaped slide groove (31), and a first threaded rod (42) penetrating the side wall of the rotating seat (3) and rotatably connected to the side wall of the L-shaped slide groove (31). 43), a crank (44) fixed at the end of the first threaded rod (43), a matching plate (45) fixed on the side wall of the two clamping plates (41) close to each other, and a rubber pad (46) fixed on the side wall of the matching plate (45) away from the clamping plate (41), the first threaded rod (43) passes through the L-shaped block (42) and is threadedly connected to the L-shaped block (42), the first threaded rod (43) is a double-headed threaded rod with threads of equal pitch and opposite rotation at both ends, the number of the L-shaped blocks (42) is equal to the number of the clamping plates (41) and the positions correspond one to one, the two L-shaped blocks (42) are symmetrically distributed on the two sections of the thread of the first threaded rod (43), and an adjustment component (5) for adjusting the cutting piece to be cut is arranged on the top of the workbench (1). 2. A laser cutting positioning device according to claim 1, characterized in that: a mounting groove (12) is provided on the top of the workbench (1), and the adjustment component (5) includes a round block (51) arranged in the mounting groove (12), two fixing rods (52) fixed on the side walls on both sides of the round block (51) and symmetrically distributed about the axis of the round block (51), an annular rack (53) fixedly sleeved on the bottom of the rotating seat (3), a threaded column (54) rotatably installed on the side wall of the round block (51), a gear (55) fixed at the end of the threaded column (54) and meshing with the annular rack (53), a mounting plate (56) arranged on the top of the workbench (1), and an adjustment rod (57) penetrating the mounting plate (56) and having a clearance fit with the mounting plate (56) , a first active bevel gear (58) fixed at the lower end of the adjusting rod (57) and a first driven bevel gear (59) fixed at the end of the fixing rod (52) close to the side of the mounting plate (56) and meshing with the first active bevel gear (58); an operating block (571) is fixed on the top of the adjusting rod (57); a receiving groove (13) for receiving the first active bevel gear (58) and the first driven bevel gear (59) is provided on the top of the workbench (1); the cross section of the mounting plate (56) is T-shaped; the bottom of the mounting plate (56) is plug-fitted with the receiving groove (13); a cross rod (541) is fixed on the end of the threaded column (54) away from the round block (51); and the two fixing rods (52) are rotatably connected to the side walls of the mounting groove (12). 3. A laser cutting positioning device according to claim 1, characterized in that: a first bolt (6) is provided through the rubber pad (46) and has a clearance fit with the rubber pad (46) and the matching plate (45), and the end of the first bolt (6) is threadedly connected to the side wall of the clamping plate (41). 4. A laser cutting positioning device according to claim 2, characterized in that: a ball (7) is arranged between the round block (51) and the rotating seat (3), a lower arc groove (511) for accommodating the ball (7) is arranged on the top of the round block (51), and an upper arc groove (32) for accommodating the ball (7) is arranged at a position corresponding to the lower arc groove (511) at the bottom of the rotating seat (3), and a second bolt (311) is arranged on the inner bottom wall of the L-shaped slide groove (31) to fit the rotating seat (3) in a clearance, and the lower end of the second bolt (311) is threadedly connected to the top of the round block (51). 5. A laser cutting positioning device according to claim 1, characterized in that: a receiving hole (312) for receiving the head of the first bolt (6) is provided on the inner bottom wall of the L-shaped slide groove (31). 6. A laser cutting positioning device according to claim 2, characterized in that: a limit block (542) is sleeved on the threaded column (54) and is threadedly matched with the threaded column (54), and a rubber sheet (543) is fixed on the side wall of the limit block (542) close to the round block (51). 7. A laser cutting positioning device according to claim 1, characterized in that: the cutting assembly (2) includes a first motor (21) fixed on the side wall of the cutting frame (11), a second threaded rod (22) penetrating the side wall of the cutting frame (11) and fixed to the output end of the first motor (21), a guide rod (23) fixed to the inner wall of the cutting frame (11), a first slider (24) sleeved on the second threaded rod (22) and threadedly connected to the second threaded rod (22), a second motor (25) fixed on the side wall of the first slider (24), and a second slider penetrating the side wall of the first slider (24) and connected to the second motor (25). A third threaded rod (26) fixed at the output end, a second slider (27) sleeved on the third threaded rod (26) and threadedly connected to the third threaded rod (26), a third motor (28) fixed on the side wall of the second slider (27), a second active bevel gear (29) fixed to the output end of the third motor (28), a fourth threaded rod (210) rotatably mounted on the bottom of the second slider (27), a second driven bevel gear (211) fixed on the fourth threaded rod (210) and meshing with the second active bevel gear (29), a limiting rod (212) sleeved on the fourth threaded rod ( The invention relates to a support plate (213) on the second slider (210) and threadedly connected to the fourth threaded rod (210), and a laser cutting head (214) fixed to the bottom of the support plate (213), a closing plate (271) is arranged at the bottom of the second slider (27), a third bolt (273) which is clearance-matched with the closing plate (271) is arranged through the closing plate (271), the end of the third bolt (273) is threadedly connected to the bottom of the second slider (27), a second slide groove (241) which is slidably matched with the second slider (27) is arranged at the bottom of the first slider (24), and the guide rod (23) passes through the first slider (24) and is loosely fitted with the first slider (24), the second threaded rod (22) passes through the first slider (24) and is threadedly connected to the first slider (24), the third threaded rod (26) passes through the second slider (27) and is threadedly connected to the second slider (27), the end of the second threaded rod (22) away from the first motor (21) is rotatably connected to the inner wall of the cutting frame (11), the end of the third threaded rod (26) away from the second motor (25) is rotatably connected to the side wall of the second slide groove (241), and the limiting rod (212) passes through the support plate (213) and is loosely fitted with the support plate (213).