A multi-station engraving machine capable of quickly clamping workpieces

Abstract

This invention discloses a multi-station engraving machine capable of quickly clamping workpieces, relating to the technical field of multi-station engraving machines. It includes: an electrical box; legs fixedly connected to the bottom of the electrical box; a display screen bracket fixedly connected to the left side of the electrical box; a heat sink on the left side of the electrical box; a column fixedly connected to the surface of the electrical box; a tool holder on the upper surface of the column; a driver fixedly connected to the back end of the tool holder; and a tool on the front end of the tool holder. When clamping and fixing a workpiece is required, the workpiece is placed on the surface of a threaded cylinder. An adjusting block is used to twist the threaded cylinder towards the outer end of the threaded cylinder. During movement, the threaded cylinder compresses the bent rod at the end of the threaded cylinder, causing it to retract. As the bent rod retracts, it clamps and fixes the workpiece through a concave block at its end. After fixing the workpiece to the end face of the threaded cylinder, the motor is energized. The disc, driven by the motor, rotates the threaded cylinder, facilitating the processing of the workpiece by the tool.

Description

Technical Field

[0001] This invention relates to the field of multi-station engraving machine technology, and specifically to a multi-station engraving machine capable of quickly clamping workpieces. Background Technology

[0002] Currently, most engraving of text or graphics on objects is done using mechanical cutting, which is time-consuming during positioning and clamping. During processing, a fixture is needed to hold the workpiece.

[0003] When existing fixtures fix workpieces, the workpieces need to be positioned inside the fixture with the help of workers, and then the workpieces are clamped and fixed by adjusting the fixtures. This requires frequent adjustments to the fixtures, which affects the processing efficiency of the workpieces. Therefore, we propose a multi-station engraving machine that can quickly clamp workpieces. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a multi-station engraving machine capable of quickly clamping workpieces, comprising:

[0005] An electrical box, with a support leg fixedly connected to the bottom of the electrical box, a display screen bracket fixedly connected to the left side of the electrical box, a heat dissipation plate provided on the left side of the electrical box, a column fixedly connected to the surface of the electrical box, a tool holder provided on the upper surface of the column, a driver fixedly connected to the back end of the tool holder, and a tool provided at the front end of the tool holder;

[0006] A positioning plate is fixedly connected to the surface of the column. The positioning plate has a circular hole on its surface. A cylindrical rod is fixedly connected inside the positioning plate. Multiple cylindrical rods are arranged on the surface of the positioning plate. Multiple workpieces are clamped and fixed by a clamping mechanism on the surface of the cylindrical rods, increasing the processing efficiency of the workpieces. The tool is controlled to work by a driver on the top of the tool holder. A motor is fixedly connected inside the cylindrical rod. A disc is rotatably connected to the positive end of the cylindrical rod through a bearing. A threaded column is fixedly connected to the surface of the disc. A threaded cylinder is threadedly connected to the surface of the threaded column. An adjusting block is fixedly connected to the surface of the threaded cylinder. A clamping mechanism is provided at the positive end of the threaded column. The output end of the motor is fixedly connected to the surface of the disc.

[0007] Furthermore, there are two columns, located at the left and right ends of the electrical box. The tool holder is positioned on top of the positioning plate, and the end of the cylindrical rod passes through the positioning plate and extends to the outer end of the positioning plate.

[0008] Furthermore, the clamping mechanism includes a positioning groove, a fixing plate, a cylindrical hole, a connecting rod, a concave block, an inclined plate, an elastic rod, and a bent rod. The positive end of the threaded column has a cylindrical hole. The positioning groove is formed on the surface of the threaded column, and four positioning grooves are formed on the surface of the threaded column. The positioning groove communicates with the interior of the cylindrical hole. The elastic rod is fixedly connected to the interior of the cylindrical hole. The elastic rod retracts into the interior of the cylindrical hole through elasticity. The elastic rod is fixedly connected to the inner wall of the cylindrical hole. The fixing plate is fixedly connected to the inner wall of the positioning groove. The bent rod is rotatably connected to the fixing plate through a rotating shaft. The concave block is fixedly connected to the bent rod. The inclined plate is fixedly connected to the surface of the concave block.

[0009] The extension and retraction ends of the bent rod and the elastic rod are hinged by a connecting rod, and four positioning grooves are provided on the surface of the threaded column.

[0010] Furthermore, the telescopic end of the elastic rod extends to the outer end of the threaded column through the cylindrical hole, the positioning groove communicates with the interior of the cylindrical hole, and the bent rod is disposed on the outer end of the front side of the threaded column.

[0011] Furthermore, the top of the electrical box is provided with a bottom groove, a cleaning mechanism is provided on the top of the electrical box, a movable plate is provided on the top of the electrical box, a sliding rod is fixedly connected to the surface of the movable plate, a limit hole is provided on the surface of the movable plate, and an auxiliary mechanism is provided above the electrical box.

[0012] Furthermore, the end of the slide rod away from the moving plate is slidably connected to the inner wall of the circular hole, and the moving plate is positioned above the front end of the electrical box.

[0013] Furthermore, the auxiliary mechanism includes a threaded hole block, a ring frame, a round shaft, a threaded rod, an extension rod, a tapered frame, and a rubber ball. The threaded hole block is fixedly connected to the inner wall of the limiting hole, and the threaded rod is threadedly connected to the inner wall of the threaded hole block. Multiple limiting holes are provided on the surface of the moving plate to limit the threaded hole block. The moving plate slides inside the round hole via a slide rod, increasing the stability of the moving plate during advancement. The end of the threaded rod is fixedly connected to the extension rod, the ring frame is fixedly connected to the end of the extension rod, the round shaft is rotatably connected to the surface of the ring frame via a bearing, the tapered frame is fixedly connected to the end of the extension rod, and the end of the tapered frame is fixedly connected to the rubber ball.

[0014] The surface of the conical frame is provided with multiple rubber balls.

[0015] Furthermore, the end of the threaded rod passes through the threaded hole block and extends to the outer end of the moving plate, the ring frame is located at the positive end of the extension rod, and the tapered frame and the threaded column are correspondingly arranged.

[0016] Furthermore, the cleaning mechanism includes a collection frame, a threaded frame, a spring rod, a cylindrical threaded frame, a cylindrical threaded rod, an inclined plate, a through-hole plate, a base frame, a drive motor, and gears. The end of the cylindrical threaded rod is rotatably connected to the inner wall of the bottom groove via a bearing. The threaded frame is threadedly connected to the cylindrical threaded rod, and the cylindrical threaded frame is threadedly connected to the surface of the cylindrical threaded rod. The inner wall of the base frame is fixedly connected to the surface of the cylindrical threaded frame. The bottom of the collection frame is fixedly connected to the top of the base frame. An inclined plate is hinged to the bottom of the inner wall of the collection frame. The through-hole plate is fixedly connected to the bottom of the inner wall of the collection frame. The spring rod is fixedly connected to the inner wall of the through-hole plate. The telescopic end of the spring rod is hinged to the inclined plate via a connecting rod. The drive motor is fixedly connected to the bottom of the inner wall of the bottom groove.

[0017] The drive motor and the cylindrical threaded rod are respectively fixedly connected to gears, and the two gears mesh with each other.

[0018] Furthermore, the top of the threaded frame is fixedly connected to the bottom of the movable plate, the collecting frame is in contact with the top surface of the electrical box, and the end of the elastic rod extends to the outer end of the collecting frame.

[0019] The beneficial effects of this invention are as follows:

[0020] When the workpiece needs to be clamped and fixed, the workpiece is placed on the surface of the threaded column. The threaded cylinder is moved to the outer end of the threaded column by adjusting the block. When the threaded cylinder moves, it will squeeze the bent rod at the end of the threaded column to retract. When the bent rod retracts, it clamps and fixes the workpiece through the concave block at the end. After the workpiece is fixed on the end face of the threaded column, the motor is powered on. The disc drives the threaded column to rotate through the motor, which facilitates the processing of the workpiece by the cutting tool.

[0021] When the elastic rod of this invention contracts inward into the cylindrical hole, it pulls the bent rod through the connecting rod to contract. The concave blocks at the end of the bent rod come into contact with each other through the contraction of the bent rod. When it is necessary to clamp and fix the workpiece, the workpiece is pushed towards the cross-section of the threaded column. The workpiece slides outward through the slope of the inclined plate, and after the workpiece contacts the end face of the threaded column, the concave blocks clamp and fix the workpiece through the elasticity of the elastic rod, avoiding the need for the operator to support the workpiece when clamping it.

[0022] This invention clamps the workpiece onto the end face of the threaded column, then powers on the drive motor. The drive motor, through the meshing of gears, drives the cylindrical threaded rod to rotate inside the bottom groove. The threaded frame, through the rotation of the cylindrical threaded rod, pushes the moving plate towards one end of the positioning plate. The end of the tapered frame away from the extension rod is designed to spread out, allowing the rubber ball at the end of the tapered frame to contact the workpiece evenly, increasing the clamping force. When it is necessary to adjust the clamping force of a single workpiece, the circular shaft drives the circular ring frame to rotate. The threaded rod, through the rotation of the circular ring frame, adjusts the extension distance, thereby enabling simultaneous processing of workpieces of different lengths.

[0023] The cylindrical threaded frame of this invention drives the base frame to slide inside the bottom groove by rotating the cylindrical threaded rod. The collection frame shrinks the waste material on the surface of the electrical box by moving the base frame. When the end of the elastic rod contacts the surface of the positioning plate, the elastic rod pulls the inclined plate upward by pressure. When the inclined plate is raised, it pushes the waste material towards the center of the collection frame, which facilitates the processing of the waste material. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the positioning plate of the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the cylindrical rod of the present invention;

[0027] Figure 4 For the present invention Figure 2 Enlarged diagram of part A in the diagram;

[0028] Figure 5 This is a schematic diagram of the overall structure of the movable plate of the present invention;

[0029] Figure 6 This is a schematic diagram of the overall structure of the conical frame of the present invention;

[0030] Figure 7 This is a schematic diagram of the overall structure of the collection rack of the present invention.

[0031] 1. Electrical box; 2. Support leg; 3. Display screen bracket; 4. Heat sink; 5. Column; 6. Positioning plate; 7. Tool holder; 8. Driver; 9. Tool; 10. Threaded column; 11. Threaded cylinder; 12. Adjusting block; 13. Clamping mechanism; 14. Round hole; 15. Cylindrical rod; 16. Motor; 17. Disc; 20. Positioning groove; 21. Fixing plate; 22. Cylindrical hole; 23. Connecting rod; 24. Concave block; 25. Inclined plate; 26. Elastic rod; 27. Bent rod; 30. 31. Bottom groove; 32. Cleaning mechanism; 33. Slide rod; 34. Limiting hole; 35. Auxiliary mechanism; 36. Moving plate; 47. Threaded hole block; 48. Ring frame; 49. Round shaft rod; 40. Threaded rod; 41. Extension rod; 42. Conical frame; 53. Rubber ball; 54. Collection rack; 55. Threaded frame; 56. Elastic rod; 57. Cylindrical threaded frame; 58. Cylindrical threaded rod; 59. Inclined plate; 50. Through hole plate; 51. Base frame; 52. Drive motor; 53. Gear. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0033] Example 1

[0034] Please see Figures 1-6 This invention relates to a multi-station engraving machine capable of quickly clamping workpieces, comprising:

[0035] Electrical box 1, with a support leg 2 fixedly connected to the bottom of electrical box 1, a display screen bracket 3 fixedly connected to the left side of electrical box 1, a heat sink 4 set on the left side of electrical box 1, a column 5 fixedly connected to the surface of electrical box 1, a tool holder 7 set on the upper surface of column 5, a driver 8 fixedly connected to the back end of tool holder 7, and a tool 9 set on the front end of tool holder 7.

[0036] A positioning plate 6 is fixedly connected to the surface of the column 5. A circular hole 14 is formed on the surface of the positioning plate 6. A cylindrical rod 15 is fixedly connected inside the positioning plate 6. A motor 16 is fixedly connected inside the cylindrical rod 15. A disc 17 is rotatably connected to the front end of the cylindrical rod 15 via a bearing. A threaded column 10 is fixedly connected to the surface of the disc 17. A threaded cylinder 11 is threadedly connected to the surface of the threaded column 10. An adjusting block 12 is fixedly connected to the surface of the threaded cylinder 11. A clamping mechanism 13 is provided at the front end of the threaded column 10. The output end of the motor 16 is connected to the disc 17. For surface-fixed connection, when the workpiece needs to be clamped and fixed, the workpiece is placed on the surface of the threaded column 10. The threaded cylinder 11 is moved to the outer end of the threaded column 10 by the adjusting block 12. When the threaded cylinder 11 moves, it will squeeze the bent rod at the end of the threaded column 10 to retract. When the bent rod 27 retracts, it clamps and fixes the workpiece through the concave hole block 24 at the end. After the workpiece is fixed on the end face of the threaded column 10, the motor 16 is powered on. The disc 17 pushes the threaded column 10 to rotate through the motor 16, which facilitates the processing of the workpiece by the tool 9.

[0037] There are two columns 5, located at the left and right ends of the electrical box 1. The tool holder 7 is located on the top of the positioning plate 6. The end of the cylindrical rod 15 passes through the positioning plate 6 and extends to the outer end of the positioning plate 6.

[0038] The clamping mechanism 13 includes a positioning groove 20, a fixing plate 21, a cylindrical hole 22, a connecting rod 23, a recessed block 24, an inclined plate 25, an elastic rod 26, and a bent rod 27. A cylindrical hole 22 is formed at the positive end of the threaded column 10. The positioning groove 20 is formed on the surface of the threaded column 10. The elastic rod 26 is fixedly connected to the inner wall of the cylindrical hole 22. The fixing plate 21 is fixedly connected to the inner wall of the positioning groove 20. The bent rod 27 is rotatably connected to the fixing plate 21 via a rotating shaft. The recessed block 24 is fixedly connected to the bent rod 27. The inclined plate 25 is fixedly connected to the surface of the recessed block 24. The elastic rod 26 of this invention... When the elastic rod 26 retracts into the cylindrical hole 22, it pulls the bent rod 27 to retract via the connecting rod 23. The concave blocks 24 at the end of the bent rod 27 come into contact with each other due to the retraction of the bent rod 27. When it is necessary to clamp and fix the workpiece, the workpiece is pushed towards the cross-section of the threaded column 10. The workpiece slides outward through the slope of the inclined plate 25, and the concave blocks 24 are pushed outward. After the workpiece contacts the end face of the threaded column 10, the concave blocks 24 clamp and fix the workpiece through the elasticity of the elastic rod 26, so that the operator does not need to support the workpiece when clamping it.

[0039] The extension and retraction ends of the bent rod 27 and the elastic rod 26 are hinged through the connecting rod 23, and four positioning grooves 20 are provided on the surface of the threaded column 10.

[0040] The telescopic end of the elastic rod 26 extends to the outer end of the threaded post 10 through the cylindrical hole 22. The positioning groove 20 is connected to the interior of the cylindrical hole 22. The bent rod 27 is located at the outer end of the front side of the threaded post 10.

[0041] The top of the electrical box 1 is provided with a bottom groove 30, a cleaning mechanism 31 is provided on the top of the electrical box 1, a movable plate 35 is provided on the top of the electrical box 1, a sliding rod 32 is fixedly connected to the surface of the movable plate 35, a limit hole 33 is provided on the surface of the movable plate 35, and an auxiliary mechanism 34 is provided above the electrical box 1.

[0042] The end of the slide bar 32 away from the movable plate 35 is slidably connected to the inner wall of the circular hole 14, and the movable plate 35 is positioned above the positive end of the electrical box 1.

[0043] The auxiliary mechanism 34 includes a threaded hole block 40, a ring frame 41, a round shaft 42, a threaded rod 43, an extension rod 44, a tapered frame 45, and a rubber ball 46. The threaded hole block 40 is fixedly connected to the inner wall of the limiting hole 33. The threaded rod 43 is threadedly connected to the inner wall of the threaded hole block 40. The end of the threaded rod 43 is fixedly connected to the extension rod 44. The ring frame 41 is fixedly connected to the end of the extension rod 44. The round shaft 42 is rotatably connected to the surface of the ring frame 41 via a bearing. The tapered frame 45 is fixedly connected to the end of the extension rod 44. The end of the tapered frame 45 is fixedly connected to the rubber ball 46. After clamping the workpiece on the end face of the threaded column 10, the drive motor 58 is activated. When powered on, the drive motor 58 drives the cylindrical threaded rod 54 to rotate inside the bottom groove 30 through the meshing of gears 59. The threaded frame 51 pushes the moving plate 35 to move towards one end of the positioning plate 6 through the rotation of the cylindrical threaded rod 54. The end of the tapered frame 45 away from the extension rod 44 is set to diffuse, so that the rubber ball 46 at the end of the tapered frame 45 can contact the workpiece evenly, increasing the clamping force on the workpiece. When it is necessary to adjust the clamping force of a single workpiece, the circular shaft rod 42 drives the circular ring frame 41 to rotate. The threaded rod 43 adjusts the extension distance through the rotation of the circular ring frame 41, so that workpieces of different lengths can be processed simultaneously.

[0044] The surface of the conical frame 45 is provided with multiple rubber balls 46.

[0045] The end of the threaded rod 43 passes through the threaded hole block 40 and extends to the outer end of the moving plate 35. The ring frame 41 is located at the positive end of the extension rod 44, and the tapered frame 45 is correspondingly set with the threaded column 10.

[0046] Example 2

[0047] Distinguishing features from Example 1;

[0048] like Figure 7As shown: The cleaning mechanism 31 includes a collection rack 50, a threaded rack 51, a spring rod 52, a cylindrical threaded rack 53, a cylindrical threaded rod 54, an inclined plate 55, a through-hole plate 56, a base frame 57, a drive motor 58, and a gear 59. The end of the cylindrical threaded rod 54 is rotatably connected to the inner wall of the bottom groove 30 through a bearing. The threaded rack 51 is threadedly connected to the cylindrical threaded rod 54. The cylindrical threaded rack 53 is threadedly connected to the surface of the cylindrical threaded rod 54. The inner wall of the base frame 57 is fixedly connected to the surface of the cylindrical threaded rack 53. The bottom of the collection rack 50 is fixedly connected to the top of the base frame 57. An inclined plate 55 is hinged to the bottom of the inner wall of the collection rack 50. The through-hole plate 56 is fixedly connected to the bottom of the inner wall of the collection rack 50. The spring rod 52 is fixedly connected to the inner wall of the through-hole plate 56. The telescopic end of the spring rod 52 is hinged to the inclined plate 55 through a connecting rod. The drive motor 58 is fixedly connected to the bottom of the inner wall of the bottom groove 30.

[0049] Gears 59 are fixedly connected to the surfaces of the drive motor 58 and the cylindrical threaded rod 54, respectively. The two gears 59 mesh with each other. The cylindrical threaded frame 53 of the present invention pushes the base frame 57 to slide inside the bottom groove 30 through the rotation of the cylindrical threaded rod 54. The collection frame 50 shrinks the waste on the surface of the electrical box 1 through the movement of the base frame 57. When the end of the elastic rod 52 contacts the surface of the positioning plate 6, the elastic rod 52 pulls the inclined plate 55 upward through pressure. When the inclined plate 55 is raised, it pushes the waste towards the center of the collection frame 50, which facilitates the processing of the waste.

[0050] The top of the threaded frame 51 is fixedly connected to the bottom of the movable plate 35, the collection frame 50 is in contact with the top surface of the electrical box 1, and the end of the elastic rod 52 extends to the outer end of the collection frame 50.

[0051] A specific application of this embodiment is as follows: When it is necessary to clamp and fix the workpiece, the workpiece is placed on the surface of the threaded column 10. The threaded cylinder 11 is moved towards the outer end of the threaded column 10 by adjusting the block 12. When the threaded cylinder 11 moves, it will squeeze the bent rod at the end of the threaded column 10 to retract. When the bent rod 27 retracts, it clamps and fixes the workpiece through the concave block 24 at the end. After the workpiece is fixed on the end face of the threaded column 10, the motor 16 is energized. The disc 17 drives the threaded column 10 to rotate through the motor 16, which facilitates the processing of the workpiece by the tool 9. The elastic rod 26 passes through... When the elastic rod 26 retracts into the cylindrical hole 22, it pulls the bent rod 27 to retract via the connecting rod 23. The concave blocks 24 at the end of the bent rod 27 come into contact with each other due to the retraction of the bent rod 27. When it is necessary to clamp and fix the workpiece, the workpiece is pushed towards the cross-section of the threaded column 10. The workpiece slides outward through the slope of the inclined plate 25, pushing the concave blocks 24 outward. After the workpiece contacts the end face of the threaded column 10, the concave blocks 24 clamp and fix the workpiece through the elasticity of the elastic rod 26. This avoids the need for the operator to support the workpiece when clamping it. After clamping onto the end face of the threaded column 10, the drive motor 58 is energized. The drive motor 58, through the meshing of gears 59, drives the cylindrical threaded rod 54 to rotate inside the bottom groove 30. The threaded frame 51, through the rotation of the cylindrical threaded rod 54, pushes the moving plate 35 to one end of the positioning plate 6. The end of the tapered frame 45 away from the extension rod 44 is arranged in a spreading configuration, so that the rubber ball 46 at the end of the tapered frame 45 can evenly contact the workpiece, increasing the clamping force on the workpiece. When it is necessary to adjust the clamping force of a single workpiece, the circular ring frame 41 is rotated by the circular shaft rod 42. The threaded rod 43 adjusts the extended distance by rotating the ring frame 41, thus enabling simultaneous processing of workpieces of different lengths. The cylindrical threaded frame 53 pushes the base frame 57 to slide inside the bottom groove 30 by rotating the cylindrical threaded rod 54. The collection frame 50 shrinks the waste material on the surface of the electrical box 1 by moving the base frame 57. When the end of the elastic rod 52 contacts the surface of the positioning plate 6, the elastic rod 52 pulls the inclined plate 55 upward by pressure. When the inclined plate 55 is raised, it pushes the waste material towards the center of the collection frame 50, which facilitates the processing of the waste material.

[0052] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A multi-station engraving machine capable of quickly clamping workpieces, characterized in that, include: Electrical box (1), the bottom of the electrical box (1) is fixedly connected to a support leg (2), the left side of the electrical box (1) is fixedly connected to a display screen bracket (3), the left side of the electrical box (1) is provided with a heat sink plate (4), the surface of the electrical box (1) is fixedly connected to a column (5), the upper surface of the column (5) is provided with a tool holder (7), the back end of the tool holder (7) is fixedly connected to a driver (8), and the front end of the tool holder (7) is provided with a tool (9). A positioning plate (6) is fixedly connected to the surface of the column (5). A circular hole (14) is opened on the surface of the positioning plate (6). A cylindrical rod (15) is fixedly connected inside the positioning plate (6). A motor (16) is fixedly connected inside the cylindrical rod (15). A disc (17) is rotatably connected to the positive end of the cylindrical rod (15) through a bearing. A threaded column (10) is fixedly connected to the surface of the disc (17). A threaded cylinder (11) is threadedly connected to the surface of the threaded column (10). An adjusting block (12) is fixedly connected to the surface of the threaded cylinder (11). A clamping mechanism (13) is provided at the positive end of the threaded column (10). The output end of the motor (16) is fixedly connected to the surface of the disc (17). The clamping mechanism (13) includes a positioning groove (20), a fixing plate (21), a cylindrical hole (22), a connecting rod (23), a concave hole block (24), an inclined plate (25), an elastic rod (26), and a bent rod (27). The threaded column (10) has a cylindrical hole (22) at its positive end. The positioning groove (20) is opened on the surface of the threaded column (10). The elastic rod (26) is fixedly connected to the inner wall of the cylindrical hole (22). The fixing plate (21) is fixedly connected to the inner wall of the positioning groove (20). The bent rod (27) is rotatably connected to the fixing plate (21) through a rotating shaft. The concave hole block (24) is fixedly connected to the bent rod (27). The inclined plate (25) is fixedly connected to the surface of the concave hole block (24). The extension and retraction ends of the bent rod (27) and the elastic rod (26) are hinged by the connecting rod (23), and four positioning grooves (20) are provided on the surface of the threaded column (10). The top of the electrical box (1) is provided with a cleaning mechanism (31). The cleaning mechanism (31) includes a collection rack (50), a threaded rack (51), a spring rod (52), a cylindrical threaded rack (53), a cylindrical threaded rod (54), an inclined plate (55), a through-hole plate (56), a base frame (57), a drive motor (58), and a gear (59). The end of the cylindrical threaded rod (54) is rotatably connected to the inner wall of the bottom groove (30) via a bearing. The threaded rack (51) is threadedly connected to the cylindrical threaded rod (54), and the cylindrical threaded rack (53) is threadedly connected to the surface of the cylindrical threaded rod (54). The inner wall of the frame (57) is fixedly connected to the surface of the cylindrical threaded frame (53), the bottom of the collection frame (50) is fixedly connected to the top of the base frame (57), the bottom of the inner wall of the collection frame (50) is hinged with an inclined plate (55), the through hole plate (56) is fixedly connected to the bottom of the inner wall of the collection frame (50), the elastic rod (52) is fixedly connected to the inner wall of the through hole plate (56), the telescopic end of the elastic rod (52) is hinged to the inclined plate (55) through a connecting rod, and the drive motor (58) is fixedly connected to the bottom of the inner wall of the bottom groove (30). The drive motor (58) and the cylindrical threaded rod (54) are respectively fixedly connected with gears (59), and the two gears (59) mesh with each other; The top of the electrical box (1) is provided with a movable plate (35), and the surface of the movable plate (35) is provided with a limiting hole (33). An auxiliary mechanism (34) is provided above the electrical box (1). The auxiliary mechanism (34) includes a threaded hole block (40), a ring frame (41), a round shaft rod (42), a threaded rod (43), an extension rod (44), a tapered frame (45), and a rubber ball (46). The threaded hole block (40) is fixedly connected to the inner wall of the limiting hole (33). The threaded rod (43) is threadedly connected to the inner wall of the threaded hole block (40). The end of the threaded rod (43) is fixedly connected to the extension rod (44). The ring frame (41) is fixedly connected to the end of the extension rod (44). The round shaft rod (42) is rotatably connected to the surface of the ring frame (41) through a bearing. The tapered frame (45) is fixedly connected to the end of the extension rod (44). The end of the tapered frame (45) is fixedly connected to the rubber ball (46). The surface of the conical frame (45) is provided with a plurality of rubber balls (46).

2. The multi-station engraving machine capable of quickly clamping workpieces according to claim 1, characterized in that: The number of the columns (5) is set to two, and the two columns (5) are located at the left and right ends of the electrical box (1). The tool holder (7) is set on the top of the positioning plate (6). The end of the cylindrical rod (15) passes through the positioning plate (6) and extends to the outer end of the positioning plate (6).

3. A multi-station engraving machine capable of rapid workpiece clamping according to claim 1, characterized in that: The telescopic end of the elastic rod (26) extends to the outer end of the threaded column (10) through the cylindrical hole (22), the positioning groove (20) communicates with the interior of the cylindrical hole (22), and the bent rod (27) is set at the outer end of the front side of the threaded column (10).

4. A multi-station engraving machine capable of quickly clamping workpieces according to claim 1, characterized in that: The top of the electrical box (1) is provided with a bottom groove (30), and a sliding rod (32) is fixedly connected to the surface of the movable plate (35).

5. A multi-station engraving machine capable of quickly clamping workpieces according to claim 4, characterized in that: The end of the slide rod (32) away from the moving plate (35) is slidably connected to the inner wall of the round hole (14), and the moving plate (35) is located above the positive end of the electrical box (1).

6. A multi-station engraving machine capable of rapid workpiece clamping according to claim 1, characterized in that: The end of the threaded rod (43) passes through the threaded hole block (40) and extends to the outer end of the moving plate (35). The ring frame (41) is located at the positive end of the extension rod (44). The tapered frame (45) and the threaded column (10) are correspondingly arranged.

7. A multi-station engraving machine capable of quickly clamping workpieces according to claim 6, characterized in that: The top of the threaded frame (51) is fixedly connected to the bottom of the movable plate (35), the collection frame (50) is in contact with the top surface of the electrical box (1), and the end of the elastic rod (52) extends to the outer end of the collection frame (50).

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