Rotary dislocation broach mechanism for turning and milling cutter frame

By designing the rotary misalignment broach mechanism of the turning and milling tool holder, the combination of sliding pillow, tool, misalignment fixing components and positioning components is used to solve the problem of unstable tool fixing caused by damage or deformation of the positioning structure, the precise positioning and stable clamping of the tool is achieved, and the processing efficiency and accuracy are improved.

CN120134034AInactive Publication Date: 2025-06-13GUANGZHOU HANMO MECHANICAL & ELECTRICAL IND CO LTD
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Patent Information

Application Number
CN202510560141.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2025-06-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, when the tool is fixed with a positioning pin and a positioning block for a long time, it is difficult to stabilize the tool due to damage or deformation of the positioning structure, which leads to excessive vibration during the work process and is damaged.

Method used

A rotary misalignment broach mechanism of turning and milling cutter holder is designed, including a sliding pillow, a tool, a misalignment fixing assembly and a positioning assembly. The sliding pillow connects the assembly hole and the adjustment hole at the working end and the adjustment end, and combines the dislocation fixing assembly and positioning assembly to achieve stable fixing and precise positioning of the tool.

Benefits of technology

Through this mechanism, after the limit of the fixing frame is lifted, the fixing frame is returned to its initial position by using a magnet, simplifying the tool replacement process and improving work efficiency and machining accuracy. At the same time, the coordination between the dislocation fixing assembly and the positioning assembly ensures that the tool remains stable during operation, reduces vibration and offset, and improves the finish and accuracy of the processing surface.

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Abstract

The invention relates to the technical field of machine tool toolholders, and provides a turning and milling cutter frame rotary dislocation broach mechanism which comprises a ram, a cutter, a dislocation fixing assembly and a positioning assembly, the ram comprises a working end and an adjusting end, an assembly hole is coaxially formed in the working end, an adjusting hole is coaxially formed in the adjusting end, and the assembly hole is communicated with the adjusting hole. According to the technical scheme, the problem that in the prior art, when a positioning pin and a positioning block are used for fixing the tool for a long time, the tool is not prone to falling off due to the fact that the positioning pin and the positioning block are used for fixing the tool for a long time, and the tool is not prone to falling off is solved. And due to the fact that a positioning structure is damaged or deformed, the cutter is difficult to stably fix, and the cutter is damaged due to excessive vibration in the working process.
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Description

Technical Field

[0001] The present invention relates to the technical field of machine tool tool holders, and specifically, to a rotary misalignment broaching mechanism for a turning and milling tool rest. Background Art

[0002] The rotary misalignment broaching mechanism for a turning and milling tool rest is an advanced machine tool tool rest technology. Through the coordinated work of a series of precision components, this mechanism realizes the high-strength tightening and precise positioning of the tool rest, thus optimizing the cutting effect. It is mainly applicable to vertical turning and milling machining centers, especially in the process of machining large parts, or in application scenarios that require frequent tool changes and high-precision cutting.

[0003] During use, the positioning device is in a relaxed state, and the snap ring presses against the tool rest transition body through compression elastic force to achieve the preliminary fixation of the tool rest. When a tool needs to be replaced, the positioning device acts to relieve the pressure on the clamping disc spring, enabling the tool rest to move. When the rotary misalignment mechanism receives the tool change signal, it drives the tool rest to rotate and misalign to ensure the correct installation position of the tool. After the tool rest rotates and misaligns, the positioning device acts again to compress the snap ring again and firmly fix the tool rest in the new position.

[0004] After adjusting the position of the tool rest, positioning devices such as positioning pins and positioning blocks are generally used to fix it. However, during long-term use, positioning devices such as positioning pins and positioning blocks may be damaged, deformed, or displaced, making it difficult for the tool rest to accurately rotate to the predetermined position and difficult to provide sufficient pressing force. This results in difficulty in using a large feed rate during machining, not only reducing work efficiency but also increasing the wear degree of the tool, thereby affecting machining. Summary of the Invention

[0005] The present invention provides a rotary misalignment broaching mechanism for a turning and milling tool rest, which solves the problem in the prior art that when using positioning pins and positioning blocks to fix the tool for a long time, due to damage or deformation of the positioning structure, it is difficult to stably fix the tool, resulting in excessive vibration and damage to the tool during the working process.

[0006] The technical solution of the present invention is as follows:

[0007] A rotary misalignment broaching mechanism for a turning and milling tool rest, including a ram, the ram includes a working end and an adjusting end. An assembly hole is coaxially opened inside the working end, and an adjusting hole is coaxially opened inside the adjusting end. The assembly hole communicates with the adjusting hole. It further includes:

[0008] A tool, the tool is detachably installed in the assembly hole;

[0009] Dislocation fixing component, the dislocation fixing component is installed in the adjusting hole, and the tail end of the dislocation fixing component is located in the assembly hole for cooperating with the tool to fix and tension the tool;

[0010] Positioning component, the positioning component is installed on the ram for adjusting the relative position of the dislocation fixing component in the adjusting hole, thereby clamping or loosening the tool.

[0011] On the basis of the foregoing solution, the dislocation fixing component includes:

[0012] Fixed sleeve, the fixed sleeve is fixedly installed inside the adjusting hole;

[0013] Sliding sleeve, the sliding sleeve is slidably installed inside the adjusting hole, the sliding sleeve is located at the bottom of the fixed sleeve and is coaxially arranged with the fixed sleeve;

[0014] First spring, the first spring is fixedly installed between the fixed sleeve and the sliding sleeve;

[0015] Pulling connection part, the pulling connection part is installed on the top of the sliding sleeve for connecting the positioning component;

[0016] Fixing part, the fixing part is installed at the bottom of the sliding sleeve for fixing the tool.

[0017] On the basis of the foregoing solution, the pulling connection part includes:

[0018] Pulling connection hole, the pulling connection hole is opened at the top of the sliding sleeve;

[0019] Ring-shaped frame, the ring-shaped frame is slidably installed inside the pulling connection hole;

[0020] Pulling rod, the pulling rod is coaxially arranged inside the adjusting hole, and the pulling rod is fixedly connected with the ring-shaped frame.

[0021] On the basis of the foregoing solution, a hydraulic cylinder is further included, the hydraulic cylinder is fixedly installed on the top of the ram, and the output end of the hydraulic cylinder is fixedly connected with the top end of the pulling rod;

[0022] Wherein, when the sliding sleeve is pulled in the direction of the hydraulic cylinder, the upper end of the ring-shaped frame abuts against the pulling connection hole.

[0023] On the basis of the foregoing solution, the fixing part includes:

[0024] Fixing groove, a plurality of the fixing grooves are circumferentially and equiangularly opened on the sliding sleeve, and the fixing grooves are located below the pulling connection hole;

[0025] Fixing frame, the fixing frame is slidably installed inside each fixing groove;

[0026] A telescopic abutting member, and the telescopic abutting member is installed on each of the fixing frames for fixing the tool.

[0027] On the basis of the foregoing solution, the telescopic abutting member includes:

[0028] A tightening frame, and the tightening frame is slidably installed on each of the fixing frames;

[0029] A second spring, and the second spring is fixedly installed between each of the tightening frames and the fixing frame.

[0030] On the basis of the foregoing solution, it further includes:

[0031] A first magnet, and the first magnet is fixedly installed at the upper and lower ends of each of the fixing grooves;

[0032] A second magnet, and the second magnet is fixedly installed at the upper and lower ends of each of the fixing frames, and the second magnet is fixedly connected to the first magnet.

[0033] On the basis of the foregoing solution, the positioning component includes:

[0034] A conical positioning frame, and a plurality of the conical positioning frames are coaxially and fixedly installed at the bottom of the pulling rod;

[0035] A positioning groove, and a plurality of the positioning grooves are equidistantly formed on one side of each of the fixing frames close to the conical positioning frame, and the plurality of positioning grooves on each of the fixing frames match the plurality of conical positioning frames;

[0036] A positioning portion, and the positioning portion is installed on the tool for cooperating with the tightening frame to fix the position of the tool.

[0037] On the basis of the foregoing solution, the positioning portion includes:

[0038] An annular rubber pad, and the annular rubber pad is fixedly installed inside the assembly hole, and the annular rubber pad abuts against the top end of the tool;

[0039] A plugging groove, and the plugging groove is coaxially formed at the top of the tool;

[0040] A connection groove, and a plurality of the connection grooves are fixedly installed at equal angles in a circumferential shape inside the plugging groove, the plurality of connection grooves correspond to the plurality of tightening frames one by one, and the connection groove is adapted to the tightening frame.

[0041] On the basis of the foregoing solution, when the conical surface of the conical positioning frame contacts the conical surface of the positioning groove, it is in the normal position. When the maximum diameter of the conical positioning frame abuts against one side of the fixed frame close to the conical positioning frame, it is in the fixed position.

[0042] The working principle and beneficial effects of the present invention are as follows:

[0043] 1. In the present invention, after the limit of the fixed frame is released, the first magnet and the second magnet are re-attracted under the action of magnetic force, so that the fixed frame moves back to the initial position in the fixed groove, the abutting frame disengages from the tool, and the relative position fixation between the tool and the sliding sleeve is released, facilitating quick readjustment or replacement of the tool, simplifying the tool replacement process, and improving work efficiency and machining accuracy.

[0044] 2. In the present invention, when the sliding sleeve abuts against the annular rubber pad, the annular rubber pad undergoes elastic deformation in the insertion groove, ensuring that the connection groove is in close fit with the abutting frame and dispersing the pressure of the abutting frame on the tool, improving the clamping stability, ensuring that the tool is not easily loosened during the machining process, and further improving the machining accuracy and efficiency.

[0045] 3. In the present invention, the dislocation fixing component cooperates with the positioning component to fix the position between the fixed sliding sleeve and the tool, and synchronously fix the positions of the tool and the assembly hole, ensuring that the tool remains stable during operation. The tool is not only subjected to the pulling force of the pulling rod and the sliding sleeve, but also subjected to the mutual acting force between the top of the tool and the assembly hole, thereby reducing vibration and deviation during the working process and improving the surface finish and accuracy of machining. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0047] Figure 1 is a schematic structural diagram of the whole in the present invention;

[0048] Figure 2 is a schematic three-dimensional sectional structural diagram of the present invention;

[0049] Figure 3 is a schematic sectional structural diagram of the ram in the present invention;

[0050] Figure 4 is a schematic sectional structural diagram of the dislocation fixing component in the present invention;

[0051] Figure 5 is a schematic sectional structural diagram of the sliding sleeve in the present invention;

[0052] Figure 6 is a schematic sectional structural diagram of the telescopic abutting member in the present invention;

[0053] Figure 7 Schematic structural diagram of the cooperation of the annular frame, the pulling rod and the conical positioning frame in the present invention;

[0054] Figure 8 Schematic structural diagram of the positioning part in the present invention.

[0055] In the figure: 1. Ram; 2. Assembly hole; 3. Adjusting hole; 4. Tool; 5. Fixed sleeve; 6. Sliding sleeve; 7. First spring; 8. Pulling hole; 9. Annular frame; 10. Pulling rod; 11. Hydraulic cylinder; 12. Fixed groove; 13. Fixed frame; 14. Tightening frame; 15. Second spring; 16. First magnet; 17. Second magnet; 18. Conical positioning frame; 19. Positioning groove; 20. Annular rubber pad; 21. Insertion groove; 22. Connection groove. Specific embodiments

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0057] As Figures 1 to 8 shown, this embodiment proposes a rotary misalignment broaching mechanism for a turning and milling tool holder, including a ram 1. The ram 1 includes a working end and an adjusting end. An assembly hole 2 is coaxially opened inside the working end, and an adjusting hole 3 is coaxially opened inside the adjusting end. The assembly hole 2 communicates with the adjusting hole 3. It also includes a tool 4, a misalignment fixing component and a positioning component. The tool 4 is detachably installed in the assembly hole 2. A misalignment fixing component is installed in the adjusting hole 3. The tail end of the misalignment fixing component is located in the assembly hole 2 and is used to cooperate with the tool 4 to fix and tighten the tool 4. The misalignment fixing component includes a fixed sleeve 5, a sliding sleeve 6, a first spring 7, a pulling part and a fixing part. The fixed sleeve 5 is fixedly installed inside the adjusting hole 3. The sliding sleeve 6 is slidably installed inside the adjusting hole 3. The sliding sleeve 6 is located at the bottom of the fixed sleeve 5 and is coaxially arranged with the fixed sleeve 5. The first spring 7 is fixedly installed between the fixed sleeve 5 and the sliding sleeve 6. The pulling part is installed on the top of the sliding sleeve 6 and is used to connect the positioning component. The fixing part is installed on the bottom of the sliding sleeve 6 and is used to fix the tool 4.

[0058] Specifically, in order to realize the loosening and clamping of the cutting tool 4 on the machine tool spindle, a broaching mechanism is generally used to fix the cutting tool 4. The ram 1 is coaxially installed on the machine tool spindle. When installing the cutting tool 4, first insert the connecting end of the cutting tool 4 into the assembly hole 2. At this time, under the action of the positioning component, the sliding sleeve 6 enters the positioning component. At this time, under the action of the positioning component, the position between the cutting tool 4 and the sliding sleeve 6 can be connected through the fixing part. Then start the pulling part. The pulling part pulls the cutting tool 4 along the axis direction of the assembly hole 2 through the sliding sleeve 6. At this time, the first spring 7 is compressed until the top end of the cutting tool 4 abuts against the inner bottom wall of the assembly hole 2, and the position of the cutting tool 4 can be fixed. When it is necessary to loosen the cutting tool 4, release the pulling part. Under the action of the first spring 7, the sliding sleeve 6 returns to the initial position, and the fixing part is retracted, and then the cutting tool 4 can be taken out and a new cutting tool 4 can be replaced.

[0059] As described above, such as Figures 2 to 4 shown, the pulling part includes a pulling hole 8, an annular frame 9 and a pulling rod 10. A pulling hole 8 is opened at the top of the sliding sleeve 6. The annular frame 9 is slidably installed inside the pulling hole 8. The pulling rod 10 is coaxially arranged inside the adjusting hole 3. The pulling rod 10 is fixedly connected to the annular frame 9. It also includes a hydraulic cylinder 11. The hydraulic cylinder 11 is fixedly installed on the top of the ram 1. The output end of the hydraulic cylinder 11 is fixedly connected to the top end of the pulling rod 10. Among them, when pulling the sliding sleeve 6 in the direction of the hydraulic cylinder 11, the upper end of the annular frame 9 abuts against the pulling hole 8.

[0060] Specifically, under the action of the fixing part, after connecting the relative positions between the cutting tool 4 and the sliding sleeve 6, at this time, through the setting of the hydraulic cylinder 11, the hydraulic cylinder 11 drives the pulling rod 10 to move along the axis direction of the adjusting hole 3. At this time, the annular frame 9 at the end of the pulling rod 10 is located in the pulling hole 8 inside the sliding sleeve 6. When the positions of the cutting tool 4 and the sliding sleeve 6 are fixed and it is necessary to pull the sliding sleeve 6 to move, through the setting of the pulling rod 10, the pulling rod 10 drives the annular frame 9 to move in the pulling hole 8 until the top of the annular frame 9 abuts against the inner top wall of the pulling hole 8, and then the sliding sleeve 6 can be pulled to move through the pulling rod 10.

[0061] As described above, such as Figure 5 、 Figure 6 shown, the fixing part includes a fixing groove 12, a fixing frame 13 and a telescopic abutting member. A plurality of fixing grooves 12 are circumferentially and equiangularly opened on the sliding sleeve 6. The fixing grooves 12 are located below the pulling hole 8. A fixing frame 13 is slidably installed inside each fixing groove 12. A telescopic abutting member is installed on each fixing frame 13 for fixing the cutting tool 4.

[0062] Specifically, when it is necessary to fix the relative position between the cutting tool 4 and the sliding sleeve 6, at this time, the fixing frame 13 is synchronously pushed to move in the fixing groove 12 until the telescopic abutting member outside the fixing frame 13 contacts the cutting tool 4. At this time, the position of the cutting tool 4 is adjusted so that the telescopic low structure member is connected to the cutting tool 4, thereby fixing the relative position between the sliding sleeve 6 and the cutting tool 4. Then, the position of the sliding sleeve 6 is adjusted until the position of the cutting tool 4 in the assembly hole 2 is fixed.

[0063] As described above, such as Figure 6 shown, the telescopic abutting member includes an abutting frame 14 and a second spring 15. An abutting frame 14 is slidably installed on each fixing frame 13, and a second spring 15 is fixedly installed between each abutting frame 14 and the fixing frame 13. It also includes a first magnet 16 and a second magnet 17. First magnets 16 are fixedly installed at the upper and lower ends of each fixing groove 12, and second magnets 17 are fixedly installed at the upper and lower ends of each fixing frame 13. The second magnet 17 is fixedly connected to the first magnet 16.

[0064] Specifically, when the fixing frame 13 moves in the fixing groove 12 and moves to the connection position, driving the abutting frame 14 to contact the cutting tool 4, the second spring 15 is compressed, and the abutting frame 14 closely adheres to the cutting tool 4. At this time, the first magnet 16 is separated from the second magnet 17. At this time, the circumferential position of the cutting tool 4 is adjusted until the second spring 15 releases the pressure, and the abutting frame 14 remains in a tightly pressed state under the action of the second spring 15. At this time, the abutting frame 14 can fix the relative position between the cutting tool 4 and the sliding sleeve 6 to ensure the stability of the cutting tool 4. When it is necessary to loosen the cutting tool 4, the limit of the fixing frame 13 is released, so that the first magnet 16 and the second magnet 17 are re-attracted under the action of magnetic force, causing the fixing frame 13 to move back to the initial position in the fixing groove 12, the abutting frame 14 disengages from the cutting tool 4, and the second spring 15 returns to its original state, releasing the fixation of the relative position between the cutting tool 4 and the sliding sleeve 6, facilitating the re-adjustment or replacement of the cutting tool 4.

[0065] As Figure 6 、 Figure 7 shown, the positioning component is installed on the ram 1 and is used to adjust the relative position of the misalignment fixing component in the adjustment hole 3, so as to clamp or loosen the cutting tool 4. The positioning component includes a conical positioning frame 18, a positioning groove 19 and a positioning portion. A plurality of conical positioning frames 18 are coaxially and fixedly installed at the bottom of the pull rod 10. A plurality of positioning grooves 19 are equidistantly opened on one side of each fixing frame 13 close to the conical positioning frame 18. The plurality of positioning grooves 19 on each fixing frame 13 match the plurality of conical positioning frames 18. The positioning portion is installed on the cutting tool 4 and is used to cooperate with the abutting frame 14 to fix the position of the cutting tool 4. When the conical surface of the conical positioning frame 18 contacts the conical surface of the positioning groove 19, it is the normal position. When the maximum diameter of the conical positioning frame 18 abuts against one side of the fixing frame 13 close to the conical positioning frame 18, it is the fixed position.

[0066] Specifically, when it is necessary to move the fixing frame 13 in the fixing groove 12, the hydraulic cylinder 11 is started to drive the pulling rod 10 to move, thereby driving the plurality of conical positioning frames 18 and the annular frame 9 to move along the axis direction of the pulling rod 10 together. As the movement continues, through the cooperation of the conical positioning frame 18 and the positioning groove 19 on the fixing frame 13, the fixing frame 13 can be stably pushed to move in the fixing groove 12 until the outer circle at the largest size of the conical positioning frame 18 is in close contact with the inner side of the fixing frame 13. At this time, the fixing frame 13 is just in the installation position. At this time, under the action of the positioning portion, the position of the tool 4 can be fixed through the cooperation with the pressing frame 14. At this time, when the position between the tool 4 and the sliding sleeve 6 is fixed, the annular frame 9 just abuts against the inner top wall of the pulling hole 8, and the sliding sleeve 6 can be pulled to move along the axis position of the adjusting hole 3 to achieve precise positioning and stable clamping of the tool 4, ensuring the machining accuracy.

[0067] As described above, as Figure 8 shown, the positioning portion includes an annular rubber pad 20, a plugging groove 21 and a connecting groove 22. The annular rubber pad 20 is fixedly installed inside the assembly hole 2. The annular rubber pad 20 abuts against the top end of the tool 4. The plugging groove 21 is coaxially opened at the top of the tool 4. A plurality of connecting grooves 22 are fixedly installed inside the plugging groove 21 at equal angles in a circumferential shape. The plurality of connecting grooves 22 correspond to the plurality of pressing frames 14 one by one, and the connecting groove 22 is adapted to the pressing frame 14.

[0068] Specifically, as the sliding sleeve 6 moves along the axis position of the adjusting hole 3 until the sliding sleeve 6 abuts against the annular rubber pad 20. At this time, the annular rubber pad 20 generates elastic deformation in the plugging groove 21, ensuring that the connecting groove 22 is in close fit with the pressing frame 14, and dispersing the pressure of the pressing frame 14 on the tool 4, improving the clamping stability, extending the service life of the tool 4, ensuring that the tool 4 is not easily loosened during the machining process, and further improving the machining accuracy and efficiency. When fixing the tool 4, first align the plugging groove 21 at the end of the tool 4 with the sliding sleeve 6, and sleeved the plugging groove 21 on the sliding sleeve 6. When the fixing frame 13 moves to the working position, if the pressing frame 14 is not aligned with the connecting groove 22 at this time, the second spring 15 is compressed at this time, and the pressing frame 14 is inside the fixing frame 13. At this time, only need to rotate the tool 4 to adjust the circumferential position of the tool 4, and the corresponding relationship between the connecting groove 22 and the pressing frame 14 can be adjusted to ensure that each connecting groove 22 is precisely matched with the pressing frame 14. Subsequently, the second spring 15 resets, and the pressing frame 14 is automatically locked, and the stable fixing of the tool 4 can be achieved.

[0069] The working principle or usage process of this application is:

[0070] In order to realize the loosening and clamping of the tool 4 on the machine tool spindle, a broaching mechanism is generally used to fix the tool 4. The ram 1 is coaxially installed on the machine tool spindle. When installing the tool 4, first align the insertion slot 21 at the end of the tool 4 with the sliding sleeve 6, insert the connecting end of the tool 4 into the assembly hole 2, and put the insertion slot 21 on the sliding sleeve 6. At this time, the relative position between the tool 4 and the sliding sleeve 6 is fixed.

[0071] When fixing the relative position between the tool 4 and the sliding sleeve 6, start the hydraulic cylinder 11 to drive the pull rod 10 to move, thereby driving a plurality of conical positioning frames 18 and the annular frame 9 to move together along the axis direction of the pull rod 10. As the movement continues, through the cooperation of the conical positioning frame 18 with the positioning slot 19 on the fixing frame 13, the fixing frame 13 can be stably pushed to move in the fixing slot 12 until the outer circle at the largest dimension of the conical positioning frame 18 is in close contact with the inner side of the fixing frame 13. At this time, the fixing frame 13 is just in the installation position. If the tightening frame 14 is not aligned with the connecting slot 22 at this time, then the second spring 15 is compressed, and the tightening frame 14 is inside the fixing frame 13. At this time, only need to rotate the tool 4 to adjust the circumferential position of the tool 4, then the corresponding relationship between the connecting slot 22 and the tightening frame 14 can be adjusted to ensure that each connecting slot 22 is precisely matched with the tightening frame 14. Subsequently, the second spring 15 resets, and the tightening frame 14 is automatically locked, thus realizing the stable fixation of the tool 4.

[0072] When the relative position between the tool 4 and the sliding sleeve 6 is fixed, at this time, when fixing the position between the tool 4 and the sliding sleeve 6, the annular frame 9 just abuts against the inner top wall of the pulling hole 8. As the hydraulic cylinder 11 continuously pulls the pull rod 10, the sliding sleeve 6 can be pulled to move along the axis position of the adjustment hole 3. At this time, the first spring 7 is compressed until the sliding sleeve 6 abuts against the annular rubber pad 20. At this time, the annular rubber pad 20 generates elastic deformation in the insertion slot 21, ensuring that the connecting slot 22 is in close fit with the tightening frame 14, dispersing the pressure of the tightening frame 14 on the tool 4, improving the clamping stability, prolonging the service life of the tool 4, ensuring that the tool 4 is not easily loosened during the machining process, further improving the machining accuracy and efficiency, so as to realize the precise positioning and stable clamping of the tool 4, ensure the machining accuracy, and then close and lock the hydraulic cylinder 11.

[0073] When it is necessary to loosen the tool 4, the hydraulic cylinder 11 is started. The hydraulic cylinder 11 drives the pull rod to move. Under the action of the first spring 7, the sliding sleeve 6 returns to the initial position. And with the movement of the pull rod, the conical positioning frame 18 returns to its original position. At this time, the first magnet 16 and the second magnet 17 are re-attracted under the action of magnetic force, so that the fixing frame 13 moves back to the initial position in the fixing groove 12, the abutting frame 14 disengages from the connection groove 22 on the tool 4, and the second spring 15 returns to its original state. The relative position between the tool 4 and the sliding sleeve 6 is released from fixation, and then the tool 4 can be taken out and a new tool 4 can be replaced.

[0074] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rotary dislocation broaching mechanism for a milling tool holder, comprising a ram (1), wherein the ram (1) comprises a working end and an adjusting end, wherein a mounting hole (2) is coaxially opened inside the working end, and an adjusting hole (3) is coaxially opened inside the adjusting end, wherein the mounting hole (2) is communicated with the adjusting hole (3), and wherein the ram (1) comprises a working end and an adjusting end, wherein the working end and the adjusting end are coaxially opened inside the adjusting end, and ... Also includes: A tool (4), wherein the tool (4) is detachably mounted in the assembly hole (2); An offset fixing component, wherein the offset fixing component is installed in the adjusting hole (3), and the tail end of the offset fixing component is located in the assembly hole (2) and is used to cooperate with the tool (4) to fix and tighten the tool (4); A positioning component is mounted on the ram (1) and is used to adjust the relative position of the offset fixing component in the adjustment hole (3), thereby clamping or releasing the tool (4).

2. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 1, characterized in that: The dislocation fixing assembly comprises: A fixing sleeve (5), wherein the fixing sleeve (5) is fixedly installed inside the adjusting hole (3); A sliding sleeve (6), wherein the sliding sleeve (6) is slidably mounted inside the adjusting hole (3), the sliding sleeve (6) is located at the bottom of the fixed sleeve (5) and is coaxially arranged with the fixed sleeve (5); A first spring (7), wherein the first spring (7) is fixedly installed between the fixed sleeve (5) and the sliding sleeve (6); A pulling connection portion, the pulling connection portion being mounted on the top of the sliding sleeve (6) and being used for connecting the positioning assembly; A fixing part, which is installed at the bottom of the sliding sleeve (6) and is used to fix the tool (4).

3. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 2, characterized in that: The pulling part comprises: A connection hole (8), the top of the sliding sleeve (6) is provided with the connection hole (8); An annular frame (9), the annular frame (9) being slidably mounted inside the pulling hole (8); A pulling rod (10), wherein the pulling rod (10) is coaxially arranged inside the adjusting hole (3), and the pulling rod (10) is fixedly connected to the annular frame (9).

4. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 3, characterized in that: It also includes a hydraulic cylinder (11), the hydraulic cylinder (11) is fixedly mounted on the top of the ram (1), and the output end of the hydraulic cylinder (11) is fixedly connected to the top end of the pulling rod (10); When the sliding sleeve (6) is pulled to move in the direction of the hydraulic cylinder (11), the upper end of the annular frame (9) abuts against the pulling hole (8).

5. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 4, characterized in that: The fixing portion comprises: A fixing groove (12), wherein a plurality of the fixing grooves (12) are provided on the sliding sleeve (6) at equal angles in a circular shape, and the fixing grooves (12) are located at the lower part of the pulling hole (8); A fixing frame (13), wherein each of the fixing grooves (12) is slidably mounted with the fixing frame (13); A telescopic abutment component is installed on each of the fixing frames (13) and is used to fix the tool (4).

6. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 5, characterized in that: The telescopic abutment member comprises: A clamping frame (14), each of the fixing frames (13) is slidably mounted with the clamping frame (14); A second spring (15) is fixedly installed between each of the abutting frames (14) and the fixing frame (13).

7. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 6, characterized in that: Also includes: A first magnet (16), wherein the first magnet (16) is fixedly mounted at both upper and lower ends of each of the fixing slots (12); A second magnet (17), the second magnet (17) is fixedly mounted on the upper and lower ends of each of the fixing frames (13), and the second magnet (17) is fixedly connected to the first magnet (16).

8. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 7, characterized in that: The positioning component comprises: A conical positioning frame (18), wherein a plurality of the conical positioning frames (18) are coaxially and fixedly mounted on the bottom of the pulling rod (10); Positioning grooves (19), a plurality of the positioning grooves (19) are evenly spaced on one side of each fixing frame (13) close to the conical positioning frame (18), and the plurality of positioning grooves (19) on each fixing frame (13) are matched with the plurality of conical positioning frames (18); A positioning portion, the positioning portion is mounted on the tool (4) and is used to cooperate with the abutment frame (14) to fix the position of the tool (4).

9. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 8, characterized in that: The positioning portion comprises: an annular rubber pad (20), the annular rubber pad (20) being fixedly mounted inside the assembly hole (2), the annular rubber pad (20) being in contact with the top end of the cutter (4); An inserting groove (21), wherein the inserting groove (21) is coaxially arranged on the top of the tool (4); A connecting groove (22), wherein a plurality of the connecting grooves (22) are fixedly installed at equal angles in a circular shape inside the plug-in groove (21), the plurality of the connecting grooves (22) correspond one-to-one to the plurality of the abutting frames (14), and the connecting grooves (22) are adapted to the abutting frames (14).

10. The turning and milling cutter head rotation dislocation broaching mechanism according to claim 9, characterized in that: When the conical surface of the conical positioning frame (18) contacts the conical surface of the positioning groove (19), it is in a normal position. When the conical positioning frame (18) is at its largest diameter and abuts against a side of the fixing frame (13) close to the conical positioning frame (18), it is in a fixed position.