A cutter grabbing mechanism for a milling cutter packaging machine

By using a three-point positioning clamping plate and a micro air pump-driven airbag adaptive clamping technology, the problem of blade damage caused by unstable clamping in milling cutter packaging machines is solved, achieving stable gripping and low-energy milling cutter packaging.

CN224466224UActive Publication Date: 2026-07-07YITONGYUAN (TIANJIN) MACHINERY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YITONGYUAN (TIANJIN) MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-07-22
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The tool gripping mechanism of existing milling cutter packaging machines is prone to causing the milling cutter to slip, deform or scratch during clamping, affecting accuracy and lifespan, and the hard friction leads to a decline in appearance quality.

Method used

It adopts a three-point positioning clamping plate and a telescopic spring, combined with a micro air pump to drive the micro-expansion contact of the clamping airbag, and controls the clamping force through cylinder linkage. It also uses contact switches and magnetic repulsion to avoid jamming, thus achieving adaptive clamping and anti-scratching functions.

Benefits of technology

It effectively avoids the risk of scratching the milling cutter edge and coating during the gripping process, improves gripping stability and system reliability, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of milling cutter packaging, disclose a cutter grabbing mechanism for milling cutter packaging machine, including truss, the top fixedly connected with mounting bracket of truss, the surface of mounting bracket is provided with horizontal movement mechanism, the outside of mounting bracket is provided with moving frame, the surface of moving frame is provided with vertical movement mechanism, the surface of vertical movement mechanism is provided with mounting panel, the surface fixedly connected with support of mounting panel, the top fixedly connected with cylinder of support, the inner wall fixedly connected with fixed cylinder of mounting panel. In the utility model, through being provided with cylinder, fixed cylinder, clamping plate, slide rod etc. structure, realizes self -adaptation clamping through the cooperation of three -point positioning clamping plate and extension spring, and the micro -pump drive clamping air bag micro -inflation contact cutter on the contact block, effectively avoid rigid friction, reduce the scratch risk of milling cutter edge and coating in the process of grabbing packaging.
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Description

Technical Field

[0001] This utility model relates to the field of milling cutter packaging technology, and in particular to a tool gripping mechanism for a milling cutter packaging machine. Background Technology

[0002] A milling cutter packaging machine is a device specifically designed for the automatic packaging of milling cutters. Its main components include a machine housing, a lid conveying device, a rotary feeding device, a milling cutter conveying device, a milling cutter handling device, a milling cutter marking device, a box conveying device, a box handling device, a milling cutter box conveying device, a label attaching device, a strapping device, and a feeding device.

[0003] The tool gripping mechanism of a milling cutter packaging machine is a crucial component of the entire equipment. It is primarily used to accurately grip the milling cutter from a designated position and transport it to the packaging station. Common tool gripping mechanisms include mechanical jaws and vacuum suction types. Mechanical jaws, driven by cylinders or motors, open and close the jaws and are suitable for milling cutters with suitable gripping positions. These mechanisms are typically equipped with high-precision sensors to ensure accurate gripping positions and stable, reliable operation, effectively improving packaging efficiency and quality. In existing technologies, when gripping milling cutters with mechanical jaws, the jaws often lack adaptive gripping and anti-scratch designs. Excessive gripping force can cause the milling cutter to slip, while excessive force can cause deformation or breakage of the shank or cutting edge, affecting tool accuracy and lifespan. Hard jaws directly contacting the high-hardness surface of the milling cutter easily produce scratches or indentations, reducing the tool's appearance quality and subsequent performance. Therefore, this paper proposes a tool gripping mechanism for milling cutter packaging machines to address these issues. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a tool gripping mechanism for a milling cutter packaging machine.

[0005] This utility model is achieved through the following technical solution:

[0006] A tool gripping mechanism for a milling cutter packaging machine includes a truss. A mounting frame is fixedly connected to the top of the truss. A transverse moving mechanism is provided on the surface of the mounting frame. A movable frame is provided outside the mounting frame. A vertical moving mechanism is provided on the surface of the movable frame. A mounting plate is provided on the surface of the vertical moving mechanism. A bracket is fixedly connected to the surface of the mounting plate. A cylinder is fixedly connected to the top of the bracket. A fixed cylinder is fixedly connected to the inner wall of the mounting plate. A sliding rod is slidably connected to the inner wall of the fixed cylinder. A clamping plate is fixedly connected to one end of the sliding rod. A contact block is fixedly connected to the other end of the sliding rod. A telescopic spring is fixedly connected to the side wall of the contact block. An inclined surface is provided on the top of the contact block. A disc is fixedly connected to the output end of the cylinder. A moving rod is fixedly connected to the bottom of the disc. A collar is fixedly connected to the bottom end of the moving rod. A sloping surface is provided on the inner surface of the collar. An anti-scratch component is provided on the surface of the contact block.

[0007] As a further description of the above technical solution: the movable rod passes through the mounting plate and is slidably connected to the inner wall of the mounting plate, and the clamping plate is located inside the fixed cylinder.

[0008] As a further description of the above technical solution: the end of the telescopic spring away from the contact block is fixedly connected to the outer wall of the fixed cylinder, and the sliding rod passes through the fixed cylinder.

[0009] As a further description of the above technical solution: the anti-scratch component includes a mounting groove, a miniature air pump is fixedly connected to the inner wall of the mounting groove, an air supply pipe is fixedly connected to the output end of the miniature air pump, and a clamping airbag is fixedly connected to the end of the air supply pipe.

[0010] As a further description of the above technical solution: the mounting groove is opened on the outer wall of the contact block away from the telescopic spring, the gas supply pipe passes through the fixed cylinder, and a local area of ​​the gas supply pipe is telescopically oriented.

[0011] As a further description of the above technical solution: the outer wall of the clamping airbag is fixedly connected to the side of the clamping plate away from the slide bar.

[0012] As a further description of the above technical solution: the outer wall of the contact block is provided with an embedding groove, the inner wall of the embedding groove is fixedly connected with a contact switch, the inner surface of the collar is provided with an avoidance groove, the inner wall of the avoidance groove is fixedly connected with a limit spring, the end of the limit spring is fixedly connected with a pressing block, the outer wall of the contact block is provided with a groove, and the inner wall of the groove is fixedly connected with a magnetic strip.

[0013] As a further description of the above technical solution: the outer wall of the limiting spring is slidably connected to the inner wall of the clearance groove, and the groove is located on the surface of the inclined surface.

[0014] This utility model has the following beneficial effects:

[0015] This invention achieves adaptive clamping through a three-point positioning clamping plate and a telescopic spring. Combined with a micro air pump on the contact block to drive the airbag to expand and contact the cutting tool, it effectively avoids hard friction. The cylinder precisely controls the clamping force through the inclined surface linkage mechanism. While ensuring gripping stability, it significantly reduces the risk of scratching the milling cutter edge and coating during the gripping and packaging process.

[0016] Meanwhile, this utility model also adds a contact switch to intelligently trigger the airbag inflation, which only works when clamping the tool. Combined with magnetic repulsion, the squeezing block automatically avoids the inclined surface of the collar, preventing the mechanism from jamming. The one-way valve of the airbag precisely controls the exhaust pressure, which significantly reduces energy consumption and improves system reliability while maintaining the adaptive anti-scratch function. Attached Figure Description

[0017] Figure 1 This is a side view of the main structure of a tool gripping mechanism for a milling cutter packaging machine proposed in this utility model;

[0018] Figure 2 This is a partial side view of the tool gripping mechanism for a milling cutter packaging machine proposed in this utility model;

[0019] Figure 3 This is a bottom view schematic diagram of a partial structure of a tool gripping mechanism for a milling cutter packaging machine proposed in this utility model;

[0020] Figure 4 This utility model proposes a tool gripping mechanism for a milling cutter packaging machine. Figure 3 Enlarged view of region A in the middle;

[0021] Figure 5 This is a partial cross-sectional view of a tool gripping mechanism for a milling cutter packaging machine proposed in this utility model;

[0022] Figure 6 This utility model proposes a tool gripping mechanism for a milling cutter packaging machine. Figure 5 Enlarged schematic diagram of region B in the middle.

[0023] Legend:

[0024] 1. Truss; 2. Mounting frame; 3. Lateral movement mechanism; 4. Moving frame; 5. Vertical movement mechanism; 6. Mounting plate; 7. Bracket; 8. Cylinder; 9. Fixing cylinder; 10. Clamping plate; 11. Slide rod; 12. Contact block; 13. Inclined surface; 14. Telescopic spring; 15. Disc; 16. Moving rod; 17. Collar; 18. Sloping surface; 19. Mounting groove; 20. Miniature air pump; 21. Air supply pipe; 22. Clamping airbag; 23. Embedded groove; 24. Contact switch; 25. Clearance groove; 26. Limiting spring; 27. Extrusion block; 28. Groove; 29. ​​Magnetic strip. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0027] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Reference Figures 1-3This utility model provides an embodiment of a tool gripping mechanism for a milling cutter packaging machine, comprising a truss 1, a mounting frame 2 fixedly connected to the top of the truss 1, a transverse moving mechanism 3 provided on the surface of the mounting frame 2, the transverse moving mechanism 3 consisting of a set of motors, a set of screws, and a set of threaded sliders, the threaded sliders being threadedly connected to the screws, and a guide rail provided on the mounting frame 2 to guide the movement of the threaded sliders, the threaded sliders being fixedly connected to a moving frame 4, driving the moving frame 4 to move horizontally, the moving frame 4 being provided on the outside of the mounting frame 2, and a vertical moving mechanism 5 provided on the surface of the moving frame 4. The vertical moving mechanism 5 is also composed of a set of motors, a set of screws, and a set of threaded sliders. The threaded sliders are threadedly connected to the screws. The moving frame 4 is equipped with a vertical guide rail, which drives the mounting plate 6 to move horizontally and vertically. The surface of the vertical moving mechanism 5 is provided with the mounting plate 6. A bracket 7 is fixedly connected to the surface of the mounting plate 6. A cylinder 8 is fixedly connected to the top of the bracket 7. A fixed cylinder 9 is fixedly connected to the inner wall of the mounting plate 6. A sliding rod 11 is slidably connected to the inner wall of the fixed cylinder 9. The sliding rod 11 passes through the fixed cylinder 9. The fixed cylinder 9 can be fitted with the milling cutter on the feeding plate. One end of the sliding rod 11 is fixedly connected to the clamping plate 1. 0. The clamping plate 10 is located inside the fixed cylinder 9. Three sets of sliding rods 11, contact blocks 12, and telescopic springs 14 are respectively arranged with the clamping plate 10, and are equidistant from the center point of the fixed cylinder 9. The three sets of clamping plates 10 can provide three-point positioning and clamping for the milling cutter. The other end of the sliding rod 11 is fixedly connected to the contact block 12. The side wall of the contact block 12 is fixedly connected to the telescopic spring 14. The end of the telescopic spring 14 away from the contact block 12 is fixedly connected to the outer wall of the fixed cylinder 9. The top of the contact block 12 has an inclined surface 13. The output end of the cylinder 8 is fixedly connected to a disc 15. A movable rod 16 is fixedly connected to the bottom of the device. The movable rod 16 passes through the mounting plate 6 and is slidably connected to the inner wall of the mounting plate 6. A collar 17 is fixedly connected to the bottom end of the movable rod 16. A ramp 18 is opened on the inner surface of the collar 17. The surface of the inclined surface 13 is adapted to the surface of the ramp 18. When the cylinder 8 drives the collar 17 to descend, the ramp 18 contacts the inclined surface 13 and can apply force to the contact block 12 to make it move closer to the fixed cylinder 9. The drive clamp 10 fits against the surface of the milling cutter. An external turntable is provided. A three-jaw chuck is provided on the turntable. The three-jaw chuck grips the inner cover of the packaging. After the milling cutter is gripped, it is vertically inserted into the inner cover of the packaging.

[0029] Reference Figures 3-5The surface of the contact block 12 is provided with anti-scratch components, which include a mounting groove 19, a micro air pump 20, an air supply pipe 21, and a gripping airbag 22. Each group of contact blocks 12 is provided with anti-scratch components. Before the clamping plate 10 is attached to the milling cutter, the gripping airbag 22 first contacts the surface of the milling cutter. The gripping airbag 22 can be slightly expanded by the inflation of the micro air pump 20 and contact the surface of the milling cutter to prevent damage to the surface of the milling cutter during gripping. The mounting groove 19 is opened on the outer wall of the contact block 12 away from the telescopic spring 14. The inner wall of the mounting groove 19 is fixedly connected to the micro air pump 20. The output end of the micro air pump 20 is fixedly connected to the air supply pipe 21. The air supply pipe 21 is partially telescopic. The air supply pipe 21 passes through the fixed cylinder 9. The end of the air supply pipe 21 is fixedly connected to the gripping airbag 22. The outer wall of the gripping airbag 22 is fixedly connected to the side of the clamping plate 10 away from the slide bar 11.

[0030] Reference Figure 6 The outer wall of the contact block 12 has an embedded groove 23, and the inner wall of the embedded groove 23 is fixedly connected to a contact switch 24. When the movable end of the contact switch 24 is pressed, the micro air pump 20 starts to inflate. When the movable end of the contact switch 24 lacks force, the micro air pump 20 stops running. The clamping airbag 22 is provided with an air outlet pipe and a one-way valve to control the degree of deflation of the clamping airbag 22. The inner surface of the collar 17 has an avoidance groove 25, and the inner wall of the avoidance groove 25 is fixedly connected to a limit spring 26. The outer wall of the limit spring 26 is... The limiting spring 26 is slidably connected to the inner wall of the relief groove 25. The end of the limiting spring 26 is fixedly connected to the pressing block 27. The outer wall of the contact block 12 is provided with a groove 28. The groove 28 is located on the surface of the inclined surface 13. The inner wall of the groove 28 is fixedly connected to a magnetic strip 29. The pressing block 27 has a built-in magnet. The magnet in the pressing block 27 and the magnetic strip 29 on the opposite side are mutually repulsive. When the collar 17 is on the inclined surface 13, the pressing block 27 is subjected to magnetic repulsion and always stays inside the relief groove 25, so that the pressing block 27 will not bulge out and cause the collar 17 to be obstructed from descending.

[0031] Working principle: The motor in the horizontal moving mechanism 3 starts, driving the screw to rotate. The threaded slider, threadedly connected to the screw, moves the moving frame 4 horizontally across the surface of the mounting frame 2 under the guidance of the guide rail, thus positioning the gripping mechanism in the horizontal direction. Next, the motor in the vertical moving mechanism 5 rotates, causing the screw to rotate and, constrained by the vertical guide rail, move the mounting plate 6 vertically up and down, adjusting the gripping mechanism to a suitable height for gripping the milling cutter. Once the gripping mechanism is moved to the appropriate position above the milling cutter… When cylinder 8 is activated, its output end pushes disc 15, moving rod 16, and collar 17 downwards. The inclined surface 18 on the inner surface of collar 17 contacts the inclined surface 13 on the top of contact block 12. As collar 17 descends, the inclined surface 18 exerts force on the inclined surface 13, causing contact block 12 to overcome the elastic force of extension spring 14 and move towards fixed cylinder 9. This, in turn, drives clamping plate 10 to move towards the center of fixed cylinder 9, performing three-point positioning clamping on the milling cutter located inside fixed cylinder 9. The clamping block 27 within the relief groove 25 on the inner surface of collar 17 contains a built-in magnet. The magnetic strip 29 on the opposite side of the groove 28 of the contact block 12 is magnetically repelled. The squeezing block 27 is always inside the clearance groove 25 and will not obstruct the descent of the collar 17. When the collar 17 continues to descend, before the clamping plate 10 contacts the end mill, the contact switch 24 contacts and is pressed by the squeezing block 27, triggering the micro air pump 20 to start. The micro air pump 20 inflates the clamping airbag 22 through the air supply pipe 21. After the clamping airbag 22 expands slightly, it first contacts the surface of the end mill, which plays a buffering and anti-scratching role, avoiding direct contact between the clamping plate 10 and the end mill surface, thus preventing damage. When the end mill is stabilized... After the grabbing, the horizontal moving mechanism 3 and the vertical moving mechanism 5 work together again to move the grabbed milling cutter to the external turntable. At this time, the three-jaw chuck on the turntable has gripped the inner cover of the packaging. The grabbing mechanism inserts the milling cutter vertically into the inner cover of the packaging, completing the grabbing and packaging process of the milling cutter. After the grabbing is completed, the contact switch 24 is no longer pressurized, the micro air pump 20 stops running, the gripping airbag 22 exhausts air through the air outlet pipe and the one-way valve, the cylinder 8 drives the collar 17 to rise and reset, and the telescopic spring 14 causes the clamping plate 10 to release the milling cutter, waiting for the next grabbing task.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tool gripping mechanism for a milling cutter packaging machine, comprising a truss (1), a mounting frame (2) fixedly connected to the top of the truss (1), a transverse moving mechanism (3) provided on the surface of the mounting frame (2), a movable frame (4) provided on the outside of the mounting frame (2), and a vertical moving mechanism (5) provided on the surface of the movable frame (4), characterized in that: The vertical moving mechanism (5) is provided with a mounting plate (6), a bracket (7) is fixedly connected to the surface of the mounting plate (6), a cylinder (8) is fixedly connected to the top of the bracket (7), a fixed cylinder (9) is fixedly connected to the inner wall of the mounting plate (6), a sliding rod (11) is slidably connected to the inner wall of the fixed cylinder (9), a clamping plate (10) is fixedly connected to one end of the sliding rod (11), a contact block (12) is fixedly connected to the other end of the sliding rod (11), a telescopic spring (14) is fixedly connected to the side wall of the contact block (12), an inclined surface (13) is provided on the top of the contact block (12), a disc (15) is fixedly connected to the output end of the cylinder (8), a moving rod (16) is fixedly connected to the bottom of the disc (15), a collar (17) is fixedly connected to the bottom end of the moving rod (16), a slope surface (18) is provided on the inner surface of the collar (17), and an anti-scratch component is provided on the surface of the contact block (12).

2. The tool gripping mechanism for a milling cutter packaging machine according to claim 1, characterized in that: The movable rod (16) passes through the mounting plate (6) and is slidably connected to the inner wall of the mounting plate (6), and the clamping plate (10) is located inside the fixed cylinder (9).

3. The tool gripping mechanism for a milling cutter packaging machine according to claim 1, characterized in that: The end of the telescopic spring (14) away from the contact block (12) is fixedly connected to the outer wall of the fixed cylinder (9), and the slide rod (11) passes through the fixed cylinder (9).

4. The tool gripping mechanism for a milling cutter packaging machine according to claim 1, characterized in that: The anti-scratch component includes a mounting groove (19), a micro air pump (20) is fixedly connected to the inner wall of the mounting groove (19), an air supply pipe (21) is fixedly connected to the output end of the micro air pump (20), and a clamping airbag (22) is fixedly connected to the end of the air supply pipe (21).

5. The tool gripping mechanism for a milling cutter packaging machine according to claim 4, characterized in that: The mounting groove (19) is located on the outer wall of the contact block (12) away from the telescopic spring (14). The gas supply pipe (21) passes through the fixed cylinder (9). The gas supply pipe (21) is partially telescopic.

6. The tool gripping mechanism for a milling cutter packaging machine according to claim 4, characterized in that: The outer wall of the clamping airbag (22) is fixedly connected to the side of the clamping plate (10) away from the slide bar (11).

7. The tool gripping mechanism for a milling cutter packaging machine according to claim 1, characterized in that: The outer wall of the contact block (12) is provided with an embedding groove (23), and a contact switch (24) is fixedly connected to the inner wall of the embedding groove (23). The inner surface of the collar (17) is provided with a clearance groove (25), and a limit spring (26) is fixedly connected to the inner wall of the clearance groove (25). A pressing block (27) is fixedly connected to the end of the limit spring (26). The outer wall of the contact block (12) is provided with a groove (28), and a magnetic strip (29) is fixedly connected to the inner wall of the groove (28).

8. The tool gripping mechanism for a milling cutter packaging machine according to claim 7, characterized in that: The outer wall of the limiting spring (26) is slidably connected to the inner wall of the clearance groove (25), and the groove (28) is located on the surface of the inclined surface (13).