Centering clamping head for numerical control machine tool
By designing a combination of limit blocks and return springs, the centering clamping head of CNC machine tools can be easily disassembled and assembled, solving the problem of inconvenient clamping head replacement in existing technologies and improving the performance.
Patent Information
- Application Number
- CN202520325139.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing CNC machine tool centering clamping heads are not convenient to replace with clamping heads that correspond to the required clamping heads when clamping materials of different sizes and shapes, resulting in poor performance.
A centering clamping head structure was designed, comprising a clamping rod, a sleeve, a connecting shaft, a connecting piece, and a pressing assembly. Through the cooperation of a limiting block and a return spring, the insertion block is automatically retracted and fixed, simplifying the assembly and disassembly process of the clamping head.
It improves the ease of replacement and effectiveness of the clamping head, ensures simple and convenient operation, and avoids slippage and damage to the clamping parts.
Smart Images
Figure CN223863351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine tool technology, specifically to a centering clamping head for CNC machine tools. Background Technology
[0002] CNC machine tools are automated machine tools controlled by computer programs. They can automatically perform machining operations such as cutting, milling, drilling, and grinding based on pre-programmed instructions. CNC machine tools are widely used in metal processing, plastics processing, wood processing, and other fields, and have advantages such as high precision, high efficiency, and flexibility.
[0003] CNC machine tools typically utilize clamping mechanisms during operation. However, existing CNC machine tool centering clamping heads are usually fixedly connected to the clamping moving rod by bolts. When clamping materials of different sizes and shapes, it is inconvenient to change the clamping head to match the required material, resulting in less than ideal performance. Utility Model Content
[0004] The purpose of this invention is to provide a centering clamping head for CNC machine tools, so as to solve the problem in the prior art that when clamping materials of different sizes and shapes, it is not convenient to change the clamping head to correspond to the required clamping material, and the effect of use is not very good.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a centering clamping head for CNC machine tools, comprising a clamping rod, a sleeve fixedly mounted on one side of the clamping rod, a connecting shaft fixedly mounted on one side of the sleeve, a first connecting piece fixedly mounted on one end of the connecting shaft, a pressing component provided on one side of the first connecting piece, a second connecting piece provided on one side of the first connecting piece, a clamping head body fixedly mounted on one side of the second connecting piece, a plurality of anti-slip textures fixedly mounted on one side of the clamping head body, a connecting structure provided between the first connecting piece and the second connecting piece, the connecting structure comprising two inserts, both of which are fixedly mounted on one side of the second connecting piece, the anti-slip textures preventing slippage of the clamping components when the clamping head clamps.
[0006] Preferably, both sides of the two insert blocks are provided with sliding grooves, and two No. 1 return springs are fixedly installed inside the sliding grooves on both sides of the two insert blocks. A limit block is fixedly installed at one end of the two No. 1 return springs, and the sliding grooves can limit the movement of the limit block.
[0007] Preferably, one side of each of the four limiting blocks is designed with an inclined surface. The four limiting blocks are respectively set inside the four sliding grooves and slide in contact with the two insert blocks respectively. The inclined surface design of the limiting blocks can press the two limiting blocks into the sliding groove due to the contact pressure between the inclined surface and the first connecting piece when the insert block is inserted into the limiting slot of the first connecting piece, thereby facilitating personnel to install.
[0008] Preferably, the first connecting piece has two limiting slots, and the size of the two inserts matches the size of the two limiting slots.
[0009] Preferably, the pressing assembly includes two fixed seats, both of which are fixedly installed on one side of the first connecting piece. Two connecting posts are fixedly installed between the two fixed seats. Two sliding plates are slidably installed on the outer sides of the two connecting posts. The two connecting posts can limit the movement position of the two sliding plates to ensure that the two sliding plates do not deviate when they move.
[0010] Preferably, pressure blocks are fixedly installed on the upper and lower sides of both slide plates, and four pressure blocks are respectively disposed on both sides of the two limiting slots. A lever is fixedly installed on the front side of both slide plates.
[0011] Preferably, two No. 2 return springs are fixedly installed on one side of each of the two slide plates, and one end of each of the four No. 2 return springs is fixedly connected to two fixed seats respectively.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This application uses a sloped design with four limiting blocks. When the four inserts are inserted, the four limiting blocks will automatically retract into the slide groove. After the inserts are fully inserted, the elastic action of the first reset spring will pop the limiting blocks out, thereby re-limiting and fixing the first connecting piece and the second connecting piece, thus completing the disassembly and replacement. The operation is simple and convenient, and the effect of the clamping head is improved.
[0014] 2. By setting up a pressing component, when disassembling the clamping head body, the operator only needs to use one hand to press the two levers to release the limiting and fixing effect between the first connecting piece and the second connecting piece. This prevents the clamping head body from falling directly and being damaged when the operator uses two hands to press the four limiting blocks to release the fixing of the first connecting piece and the second connecting piece. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the centering clamping head for CNC machine tools according to this utility model;
[0016] Figure 2This is a side view of the overall structure of the centering clamping head for CNC machine tools according to this utility model;
[0017] Figure 3 This is a cross-sectional view of the insertion block of the centering clamping head for CNC machine tools according to this utility model;
[0018] Figure 4 This is a schematic diagram of the pressing component of the centering clamping head for CNC machine tools according to this utility model;
[0019] Figure 5 This is a schematic diagram showing the connection status of the first connecting piece and the second connecting piece of the centering clamping head for CNC machine tools according to this utility model;
[0020] Figure 6 This is a schematic diagram of the second connecting piece, insert block, and limit block of the centering clamping head for CNC machine tools according to this utility model.
[0021] The following are the labels in the diagram: 1. Clamping rod; 2. Sleeve; 3. Connecting shaft; 4. Connecting piece 1; 5. Connecting piece 2; 6. Clamping head body; 601. Anti-slip texture; 7. Insert block; 8. Return spring 1; 9. Limiting block; 10. Fixing seat; 11. Connecting column; 12. Slide plate; 13. Pressure block; 14. Pulley; 15. Return spring 2. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example: Figure 1 - Figure 6 As shown, this utility model provides a technical solution for a centering clamping head for CNC machine tools, including a clamping rod 1, a sleeve 2 fixedly installed on one side of the clamping rod 1, a connecting shaft 3 fixedly installed on one side of the sleeve 2, a first connecting piece 4 fixedly installed at one end of the connecting shaft 3, a pressing component provided on one side of the first connecting piece 4, a second connecting piece 5 provided on one side of the first connecting piece 4, a clamping head body 6 fixedly installed on one side of the second connecting piece 5, a plurality of anti-slip textures 601 fixedly installed on one side of the clamping head body 6, and a connecting structure provided between the first connecting piece 4 and the second connecting piece 5, the connecting structure including two inserts 7, both of which are fixedly installed on one side of the second connecting piece 5.
[0024] Both sides of the two insert blocks 7 are provided with sliding grooves, and two No. 1 return springs 8 are fixedly installed inside the sliding grooves on both sides of the two insert blocks 7. A limit block 9 is fixedly installed at one end of the two No. 1 return springs 8.
[0025] One side of each of the four limiting blocks 9 is designed with an inclined surface. The four limiting blocks 9 are respectively set inside the four sliding grooves and slide in contact with the two insert blocks 7 respectively.
[0026] The first connecting piece 4 has two limiting slots, and the size of the two inserts 7 matches the size of the two limiting slots.
[0027] The pressing assembly includes two fixed seats 10, both of which are fixedly installed on one side of the first connecting piece 4. Two connecting posts 11 are fixedly installed between the two fixed seats 10, and two sliding plates 12 are slidably installed on the outside of the two connecting posts 11.
[0028] Pressure blocks 13 are fixedly installed on the upper and lower sides of the two slide plates 12. The four pressure blocks 13 are respectively set on both sides of the two limit slots. A lever 14 is fixedly installed on the front side of the two slide plates 12.
[0029] Two No. 2 return springs 15 are fixedly installed on one side of each of the two slide plates 12, and one end of each of the four No. 2 return springs 15 is fixedly connected to the two fixed seats 10 respectively.
[0030] It should be noted that this utility model is a centering clamping head for CNC machine tools. When it is necessary to replace the clamping head body 6, press the two levers 14. The two levers 14 will drive the two slide plates 12 to slide, thereby driving the four pressure blocks 13 to move, so as to press the four limiting blocks 9 into the four slide grooves respectively, thereby canceling the limiting connection effect between the first connecting piece 4 and the second connecting piece 5. The second connecting piece 5 and the clamping head body 6 can then be removed and replaced. After replacement, insert the two inserts 7 directly into the two limiting slots of the first connecting piece 4. Due to the inclined design of the four limiting blocks 9, the four limiting blocks 9 will automatically retract into the slide groove when the four inserts 7 are inserted. When the inserts 7 are fully inserted, the elastic action of the first return spring 8 will pop out the limiting blocks 9, thereby re-limiting and fixing the first connecting piece 4 and the second connecting piece 5, thus completing the disassembly and replacement. The operation is simple and convenient, and the use effect of the clamping head is improved.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A centering chuck for CNC machine tools, characterized in that: The device includes a clamping rod (1), a sleeve (2) is fixedly installed on one side of the clamping rod (1), a connecting shaft (3) is fixedly installed on one side of the sleeve (2), a first connecting piece (4) is fixedly installed at one end of the connecting shaft (3), a pressing component is provided on one side of the first connecting piece (4), a second connecting piece (5) is provided on one side of the first connecting piece (4), a clamping head body (6) is fixedly installed on one side of the second connecting piece (5), a plurality of anti-slip textures (601) are fixedly installed on one side of the clamping head body (6), and a connecting structure is provided between the first connecting piece (4) and the second connecting piece (5). The connecting structure includes two inserts (7), both of which are fixedly installed on one side of the second connecting piece (5).
2. The centering clamping head for CNC machine tools according to claim 1, characterized in that: Both sides of the two inserts (7) are provided with sliding grooves, and two No. 1 return springs (8) are fixedly installed inside the sliding grooves on both sides of the two inserts (7). A limit block (9) is fixedly installed at one end of the two No. 1 return springs (8).
3. The centering clamping head for CNC machine tools according to claim 2, characterized in that: One side of each of the four limiting blocks (9) is designed with an inclined surface. The four limiting blocks (9) are respectively set inside the four sliding grooves and slide in contact with the two inserts (7).
4. The centering clamping head for CNC machine tools according to claim 1, characterized in that: The first connecting piece (4) has two limiting slots, and the size of the two inserts (7) matches the size of the two limiting slots.
5. The centering clamping head for CNC machine tools according to claim 1, characterized in that: The pressing assembly includes two fixed seats (10), both fixed seats (10) are fixedly installed on one side of the first connecting piece (4), two connecting posts (11) are fixedly installed between the two fixed seats (10), and two sliding plates (12) are slidably installed on the outside of the two connecting posts (11).
6. The centering clamping head for CNC machine tools according to claim 5, characterized in that: Pressure blocks (13) are fixedly installed on the upper and lower sides of the two slide plates (12), and four pressure blocks (13) are respectively set on both sides of the two limiting slots. A lever plate (14) is fixedly installed on the front side of the two slide plates (12).
7. The centering clamping head for CNC machine tools according to claim 5, characterized in that: Two No. 2 return springs (15) are fixedly installed on one side of each of the two slide plates (12), and one end of each of the four No. 2 return springs (15) is fixedly connected to the two fixed seats (10).