A platinum crystal engraving graver switching device

Abstract

The utility model relates to engraving equipment technical field especially relates to a kind of engraving tool switching device of platinum crystal engraving, including numerical control head, the bottom of numerical control head is fixedly connected with pneumatic telescopic box, clamping assembly is provided in pneumatic telescopic box, and pneumatic telescopic box is provided with engraving tool by clamping assembly, and the inner wall of pneumatic telescopic box is provided with elastic clamping assembly;Clamping assembly includes the base fixedly connected by flange with pneumatic telescopic box inner cylinder telescopic end, the bottom of base is provided with sliding slot, clamping plate is slidably connected in sliding slot, and bidirectional screw rod is rotatably connected in middle sliding slot.The utility model sets up clamping assembly, cooperate the drive of pneumatic telescopic box, realized the quick loading and unloading and positioning of engraving tool, and spring and shock absorber in fixed sleeve form elastic buffer structure, cooperate the close contact of rubber non-slip mat and engraving tool, can effectively absorb vibration in the process of engraving, avoid the influence precision of tool due to loosening or displacement.

Description

Technical Field

[0001] This utility model relates to the field of engraving equipment technology, and in particular to a cutting tool switching device for platinum crystal engraving. Background Technology

[0002] In the field of precision engraving, platinum crystal, due to its unique physical properties and high-end applications, places extremely high demands on engraving accuracy and efficiency. Existing CNC engraving machines, with their multi-tool collaborative operation capabilities, can meet the needs of complex engraving tasks to a certain extent, enabling automatic switching between different tools, reducing manual intervention, and improving the continuity of engraving.

[0003] Existing CNC engraving machines, such as the three-head freely switchable CNC engraving machine disclosed in CN219927353U, use slide rails and fixed carriages to assist in limiting the pneumatic engraving tools. However, in the engraving process of high-hardness and high-brittle materials such as platinum crystal, due to the strict requirements for detail processing in platinum crystal engraving, it is often necessary to frequently change different specifications of engraving tools to adapt to different engraving processes. The aforementioned switching mechanism is insufficient in response speed and action continuity, resulting in a long tool changing process and affecting the overall engraving efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing engraving tools for high-hardness and high-brittleness materials such as platinum crystal. Due to the stringent requirements for detail processing in platinum crystal engraving, it is often necessary to frequently change different sizes of engraving tools to adapt to different engraving processes. The aforementioned switching mechanisms are insufficient in response speed and action continuity, resulting in a long tool-changing process and affecting the overall engraving efficiency. Therefore, this invention proposes an engraving tool switching device for platinum crystal engraving.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cutting tool switching device for platinum crystal engraving includes a CNC head, a pneumatic telescopic box fixedly connected to the bottom of the CNC head, a clamping assembly inside the pneumatic telescopic box, an engraving tool being mounted on the pneumatic telescopic box via the clamping assembly, and an elastic clamping assembly for shock absorption and stabilization of the engraving tool being mounted on the inner wall of the pneumatic telescopic box.

[0007] The clamping assembly includes a base that is fixedly connected to the telescopic end of a cylinder inside a pneumatic telescopic box via a flange. A sliding groove is provided at the bottom of the base, and a clamping plate is slidably connected in the sliding groove. A bidirectional lead screw is rotatably connected in the middle of the sliding groove.

[0008] Preferably, the outer wall of the pneumatic telescopic box is provided with a sliding opening, and the bidirectional lead screw passes through the outer wall of the base and is slidably connected to the sliding opening.

[0009] Preferably, a round stop block is fixedly connected to one end of the bidirectional lead screw, and a hexagonal screw block is fixedly connected to the other end of the bidirectional lead screw.

[0010] Preferably, an adapter block is fixedly connected to the side of the clamping plate near the carving tool, and a limiting groove adapted to the adapter block is opened on the outer wall of the carving tool, and the adapter block slides in conjunction with the limiting groove.

[0011] Preferably, the elastic clamping assembly includes fixed sleeves fixedly installed on both sides of the inner wall of the pneumatic telescopic box, a spring fixedly connected inside the fixed sleeve, and a shock-absorbing block fixedly connected to the end of the spring near the carving tool.

[0012] Preferably, the fixing sleeve is disposed at the opening end of the pneumatic telescopic box, and a rubber anti-slip pad is fixedly connected to the side of the shock-absorbing block near the carving tool.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. In use, this utility model utilizes a clamping assembly consisting of a bidirectional lead screw, a sliding groove, and clamping plates, coupled with a pneumatic telescopic box drive, to achieve rapid loading, unloading, and positioning of the engraving tool. The rotation of the bidirectional lead screw causes the clamping plates on both sides to move closer or further apart synchronously. Combined with the limiting effect of the sliding groove on the lead screw, the switching action is responsive and continuous, effectively solving the problem of long tool changing time in traditional switching mechanisms. It is especially suitable for the need to frequently change engraving tools of different specifications in platinum crystal engraving, significantly improving the overall engraving efficiency.

[0015] 2. In use, this utility model utilizes the elastic clamping assembly, where the spring within the fixed sleeve and the damping block form an elastic buffer structure. Combined with the tight contact between the rubber anti-slip pad and the engraving tool, this effectively absorbs vibrations during the engraving process, preventing tool loosening or displacement from affecting accuracy. Simultaneously, the adapter block on the clamping plate precisely matches the limiting groove of the engraving tool, further limiting the radial wobble of the tool and ensuring stability even during high-speed engraving. This perfectly adapts to the stringent precision requirements of high-hardness, high-brittle materials like platinum crystal, reducing workpiece damage caused by tool instability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a cutting tool switching device for platinum crystal engraving proposed in this utility model;

[0017] Figure 2 This is an axonometric view of a platinum crystal engraving knife switching device proposed in this utility model;

[0018] Figure 3 A cross-sectional view of a platinum crystal engraving knife switching device proposed in this utility model. Figure 1 ;

[0019] Figure 4 A cross-sectional view of a platinum crystal engraving knife switching device proposed in this utility model. Figure 2 .

[0020] In the diagram: 1. CNC head; 2. Pneumatic telescopic box;

[0021] 3. Clamping assembly; 31. Base; 32. Slide groove; 33. Clamping plate; 34. Bidirectional lead screw;

[0022] 4. Carving tools;

[0023] 5. Elastic clamping assembly; 51. Fixing sleeve; 52. Spring; 53. Shock absorber;

[0024] 6. Sliding edge; 7. Round stop block; 8. Hexagonal screw block; 9. Adaptor block; 10. Limiting groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-4 A cutting tool switching device for platinum crystal engraving includes a CNC head 1, a pneumatic telescopic box 2 fixedly connected to the bottom of the CNC head 1, the pneumatic telescopic box 2 is the prior art adopted in this field, the box body is fixedly installed at the bottom of the CNC head 1, and a cylinder is fixedly installed at the top inside the box body. The engraving tool 4 is controlled to extend and retract inside the box body by the cylinder, so it will not be described in detail.

[0027] The pneumatic telescopic box 2 is equipped with a clamping component 3, and the pneumatic telescopic box 2 is equipped with an engraving tool 4 through the clamping component 3. The inner wall of the pneumatic telescopic box 2 is equipped with an elastic clamping component 5 for shock absorption and stabilization of the engraving tool 4.

[0028] The clamping assembly 3 includes a base 31 fixedly connected to the telescopic end of the cylinder inside the pneumatic telescopic box 2 via a flange. The bottom of the base 31 has a sliding groove 32, and a clamping plate 33 is slidably connected in the sliding groove 32. A bidirectional lead screw 34 is rotatably connected in the middle sliding groove 32. The outer wall of the pneumatic telescopic box 2 has a sliding opening 6. The bidirectional lead screw 34 passes through the outer wall of the base 31 and is slidably connected to the sliding opening 6. A round stop block 7 is fixedly connected to one end of the bidirectional lead screw 34, and a hexagonal screw block 8 is fixedly connected to the other end of the bidirectional lead screw 34. An adapter block 9 is fixedly connected to the side of the clamping plate 33 near the carving tool 4. A limiting groove 10 that matches the adapter block 9 is opened on the outer wall of the carving tool 4. The adapter block 9 and the limiting groove 10 are slidably engaged.

[0029] The elastic clamping assembly 5 includes a fixed sleeve 51 fixedly installed on both sides of the inner wall of the pneumatic telescopic box 2. A spring 52 is fixedly connected inside the fixed sleeve 51. A damping block 53 is fixedly connected to one end of the spring 52 near the carving tool 4. The fixed sleeve 51 is located at the opening end of the pneumatic telescopic box 2. A rubber anti-slip pad is fixedly connected to one side of the damping block 53 near the carving tool 4.

[0030] In this embodiment, when changing the carving tool, the operator can rotate the hexagonal screw block 8 with a wrench, which will drive the bidirectional lead screw 34 to rotate. Since the bidirectional lead screw 34 is threadedly connected to the clamping plate 33 and the clamping plate 33 slides in the slide groove 32, when the bidirectional lead screw 34 rotates, the clamping plates 33 on both sides will move away from each other along the slide groove 32. At this time, the adapter block 9 will disengage from the limiting groove 10 of the carving tool 4, thereby releasing the clamping and fixing of the carving tool 4 and making it convenient to remove the old carving tool 4.

[0031] After inserting the new carving tool 4, the hexagonal screw block 8 is rotated in the reverse direction. The bidirectional lead screw 34 drives the clamping plates 33 on both sides to move closer together until the adapter block 9 slides into the limiting groove 10 of the new carving tool 4, completing the initial clamping and fixing of the new carving tool 4. The round stop block 7 prevents the bidirectional lead screw 34 from falling out of the base 31 and the slide 6, ensuring the stability of the operation. During the carving process, the elastic clamping component 5 plays an important role. The spring 52 in the fixing sleeve 51 applies elastic force to the damping block 53, making the rubber anti-slip pad on the damping block 53 tightly adhere to the outer wall of the carving tool 4. This not only further fixes the carving tool 4, but also absorbs some of the vibration energy through the elastic deformation of the spring 52 when the carving tool 4 vibrates during operation, playing a shock-absorbing and buffering role, avoiding the impact of vibration on the carving accuracy, and well adapting to the carving needs of high-hardness and high-brittle materials such as platinum crystal. At the same time, the cylinder in the pneumatic telescopic box 2 can drive the carving tool 4 to move up and down through the base 31 to adapt to different carving depth requirements. The sliding opening 6 provides space for the bidirectional lead screw 34 to move up and down together with the base 31, ensuring the normal operation of the clamping assembly 3 when the pneumatic telescopic box 2 drives the engraving tool 4 to move up and down.

[0032] Working principle:

[0033] The operator first rotates the hexagonal screw block 8 with a wrench, causing the bidirectional lead screw 34 to rotate. This moves the clamping plate 33 outward along the slide groove 32, disengaging the adapter block 9 from the limiting groove 10 and releasing the old carving tool 4 from its fixation. After removing the old tool, the new carving tool 4 is inserted into the pneumatic telescopic box 2. The hexagonal screw block 8 is rotated in the opposite direction to drive the clamping plate 33 inward, causing the adapter block 9 to engage with the new tool's limiting groove 10, completing the initial clamping. The circular stop block 7 ensures the bidirectional lead screw 34 remains stable during operation, while the slide 6 provides space for the lead screw to move up and down with the base 31.

[0034] During the engraving process, the spring 52 of the elastic clamping component 5 pushes the damping block 53, applying radial pressure to the tool through the rubber anti-slip pad, enhancing the fixing effect and absorbing vibration energy. The cylinder driving the base 31 inside the pneumatic telescopic box 2 drives the tool to move up and down precisely, adapting to different engraving depth requirements. The synergistic effect of the shock-absorbing structure and pneumatic control effectively ensures the accuracy and stability of engraving high-hardness materials such as platinum crystal, while simplifying the tool changing process and improving work efficiency.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool switching device for platinum crystal engraving, comprising a CNC head (1), characterized in that, The bottom of the CNC head (1) is fixedly connected to a pneumatic telescopic box (2), and a clamping component (3) is provided inside the pneumatic telescopic box (2). The pneumatic telescopic box (2) is provided with a carving tool (4) through the clamping component (3), and an elastic clamping component (5) for shock absorption and stabilization of the carving tool (4) is provided on the inner wall of the pneumatic telescopic box (2). The clamping assembly (3) includes a base (31) fixedly connected to the cylinder extension end inside the pneumatic telescopic box (2) via a flange. A sliding groove (32) is provided at the bottom of the base (31). A clamping plate (33) is slidably connected in the sliding groove (32). A bidirectional lead screw (34) is rotatably connected in the middle of the sliding groove (32).

2. The engraving tool switching device for platinum crystal engraving according to claim 1, characterized in that, The outer wall of the pneumatic telescopic box (2) is provided with a sliding opening (6), and the bidirectional lead screw (34) passes through the outer wall of the base (31) and is slidably connected to the sliding opening (6).

3. The engraving knife switching device for platinum crystal engraving according to claim 1, characterized in that, One end of the bidirectional lead screw (34) is fixedly connected to a round stop block (7), and the other end of the bidirectional lead screw (34) is fixedly connected to a hexagonal screw block (8).

4. The engraving tool switching device for platinum crystal engraving according to claim 1, characterized in that, The clamping plate (33) is fixedly connected to an adapter block (9) on the side near the carving tool (4). The outer wall of the carving tool (4) is provided with a limiting groove (10) that matches the adapter block (9). The adapter block (9) and the limiting groove (10) slide together.

5. The engraving tool switching device for platinum crystal engraving according to claim 1, characterized in that, The elastic clamping assembly (5) includes a fixed sleeve (51) fixedly installed on both sides of the inner wall of the pneumatic telescopic box (2). A spring (52) is fixedly connected inside the fixed sleeve (51). A damping block (53) is fixedly connected to one end of the spring (52) near the carving tool (4).

6. The engraving tool switching device for platinum crystal engraving according to claim 5, characterized in that, The fixing sleeve (51) is set at the opening end of the pneumatic telescopic box (2), and the damping block (53) is fixedly connected to a rubber anti-slip pad on the side near the carving tool (4).

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