Floating cutter handle

Abstract

The utility model discloses a floating cutter handle which comprises a cutter handle body, a first end and a second end, a containing cavity is formed in the cutter handle body, and a first opening is formed in the end face of the first end of the cutter handle body of the containing cavity. At least part of the clamping piece extends into the containing cavity from the first opening, and a first abutting face is formed at the end, extending into the containing cavity, of the clamping piece; the adjusting piece is contained in the containing cavity, and a second abutting face is formed at the end, facing the clamping piece, of the adjusting piece; the first elastic piece is contained in the containing cavity, and the two opposite ends of the first elastic piece abut against the first abutting face and the second abutting face respectively. According to the utility model, the two ends of the first elastic piece are respectively propped against the first propping surface of the clamping piece and the second propping surface of the adjusting piece, and meanwhile, the second propping surface can be close to or far away from the first propping surface, so that the tension of the first elastic force and the elastic reciprocating movement distance of the clamping piece can be adjusted; and the universality of the floating cutter handle is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery manufacturing for metal processing, in particular to a floating tool holder. Background Art

[0002] At present, for the treatment of upper dental braces or deburring of non-metallic parts in various machining processes, manual methods are used. The manual treatment has a large workload and low work efficiency. With the growth of labor costs and the requirement for improving work efficiency, more and more special machines such as CNC machining centers or numerically controlled milling machines are used to perform upper dental braces and deburring treatments on workpieces. However, due to the differences in product positioning and the shape of the products themselves, the tools used in the machine for upper dental braces or deburring treatments on workpieces cannot be applicable to all products, resulting in poor versatility of the treatment tools and still low efficiency of upper dental braces or deburring. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a floating tool holder to solve the technical problems in the prior art, which can enhance the versatility of the floating tool holder and improve work efficiency.

[0004] The utility model provides a floating tool holder, comprising:

[0005] A tool holder body, the tool holder body has a first end and a second end, and a receiving cavity is provided in the tool holder body. The receiving cavity forms a first opening at the end face of the first end of the tool holder body;

[0006] A clamping member, at least part of the clamping member extends into the receiving cavity from the first opening. One end of the clamping member extending into the receiving cavity forms a first abutting surface;

[0007] An adjusting member, which is received in the receiving cavity. One end of the adjusting member facing the clamping member forms a second abutting surface, and the second abutting surface can approach or move away from the first abutting surface;

[0008] A driving member, an external thread portion is provided on the driving member, and an internal thread portion is provided on the adjusting member. The external thread portion and the internal thread portion form a threaded connection and cooperation. When the driving member rotates around its own axis, the adjusting member is driven to approach or move away from the clamping member;

[0009] A first elastic member, which is received in the receiving cavity. The opposite ends of the first elastic member respectively abut against the first abutting surface and the second abutting surface to apply an elastic acting force to the clamping member, so that the clamping member can elastically reciprocate.

[0010] A floating tool holder as described above, wherein preferably, the outer contour surface of the adjusting member is a polygonal surface, and the inner contour surface of the accommodating cavity matches the outer contour surface of the adjusting member.

[0011] A floating tool holder as described above, wherein preferably, the accommodating cavity has a second opening formed at the end surface of the second end of the tool holder body, and at least a part of the driving member extends out of the accommodating cavity from the second opening, and an operating portion is formed at one end of the driving member extending out of the accommodating cavity.

[0012] A floating tool holder as described above, wherein preferably, the operating portion includes a main body and a plurality of ribs provided on the outer surface of the main body.

[0013] A floating tool holder as described above, wherein preferably, the floating tool holder is further provided with a limiting member, and the limiting member can move along a first preset path, and the first preset path has a first end and a second end, wherein:

[0014] When the limiting member is located at the first end of the first preset path, the limiting member forms a limiting fit with the clamping member to limit the movement of the clamping member within a preset range;

[0015] When the limiting member is located at the second end of the first preset path, the limiting member releases the limiting fit with the clamping member.

[0016] A floating tool holder as described above, wherein preferably, a pivot seat is provided on the outer surface of the tool holder body, the limiting member is pivotally connected to the pivot seat, the limiting member has a first end and a second end, and the pivot point of the limiting member and the pivot seat is located between the first end and the second end of the limiting member. The first preset path is a rotational movement path of the limiting member centered on the pivot point, wherein:

[0017] A limiting portion is provided at the first end of the limiting member, and a portion to be limited is provided on the clamping member. When the limiting member is located at the first end of the first preset path, the limiting portion abuts against the portion to be limited to limit the movement of the clamping member within a preset range. When the limiting member is located at the second end of the first preset path, the limiting portion is misaligned with the portion to be limited;

[0018] A second elastic member is provided between the second end of the limiting member and the outer surface of the tool holder body.

[0019] A floating tool holder as described above, wherein preferably, the limiting part is a limiting hook provided at the first end of the limiting member, and the limited part is a limiting boss arranged along the circumferential direction of the clamping member. When the limiting member moves to the first end of the first preset path, the limiting hook abuts against the limiting boss to limit the movement of the clamping member within a preset range.

[0020] A floating tool holder as described above, wherein preferably, a plurality of the limiting members are provided, and the plurality of limiting members are spaced apart and distributed on the outer surface of the tool holder body.

[0021] A floating tool holder as described above, wherein preferably, a blocking part is provided on the outer surface of the tool holder body. When the limiting member is located at the first end of the first preset path, the blocking part abuts against the limiting member.

[0022] A floating tool holder as described above, wherein preferably, the floating tool holder further includes a connecting member, and the connecting member is detachably connected to the second end of the tool holder body.

[0023] Compared with the prior art, the floating tool holder of the present utility model utilizes both ends of the first elastic member to abut against the first abutting surface of the clamping member and the second abutting surface of the adjusting member respectively, and at the same time enables the second abutting surface to approach or move away from the first abutting surface, so that the tension of the first elastic force and the elastic reciprocating movement distance of the clamping member can be adjusted, effectively improving the versatility of the floating tool holder, being applicable to the installation operations of various types of dental braces, and at the same time being beneficial to improving work efficiency, reducing the labor intensity of employees and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an axonometric view of the floating tool holder provided by the embodiment of the present utility model;

[0025] Figure 2 is an exploded view of the floating tool holder provided by the embodiment of the present utility model;

[0026] Figure 3 is a front view of the floating tool holder provided by the embodiment of the present utility model;

[0027] Figure 4 is Figure 3 a sectional view taken along line A-A in

[0028] Description of the reference numerals:

[0029] 10 - tool holder body, 11 - accommodation cavity, 12 - first opening, 13 - second opening, 14 - pivot seat, 15 - blocking part;

[0030] 20 - clamping member, 21 - first abutting surface, 22 - limited part;

[0031] 30 - Adjusting member, 31 - Second abutting surface, 32 - Internal thread portion;

[0032] 40 - First elastic member;

[0033] 50 - Driving member, 51 - External thread portion, 52 - Operating portion, 521 - Main body, 522 - Rib;

[0034] 60 - Limiting member, 61 - Limiting portion, 62 - Second elastic member;

[0035] 70 - Connecting member. Specific embodiments

[0036] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] Referring to Figures 1 to 4 As shown, the present invention provides a floating tool holder, including a tool holder main body 10, a clamping member 20, an adjusting member 30 and a first elastic member 40, wherein:

[0038] The tool holder main body 10 has a first end and a second end. In a feasible embodiment, the tool holder main body 10 is a cylindrical structure with an axis. The first end and the second end of the tool holder main body 10 are respectively located on opposite sides in the axial direction of the tool holder main body 10. An accommodation cavity 11 is provided inside the tool holder main body 10. The accommodation cavity 11 extends along the axial direction of the tool holder main body 10. A first opening 12 is formed on the end face of the first end of the tool holder main body 10 for the accommodation cavity 11. The accommodation cavity 11 communicates with the outside through the first opening 12.

[0039] At least a part of the clamping member 20 extends into the accommodation cavity 11 from the first opening 12. One end of the clamping member 20 extending into the accommodation cavity 11 forms a first abutting surface 21. In the embodiment provided by the present application, one end of the clamping member 20 exposed outside the accommodation cavity 11 can clamp tools such as a screw rod or a grinding head. Before performing operations such as putting on a dental appliance or deburring, a suitable clamping member 20 can be replaced according to the specifications of the product, which is beneficial to improving the applicability of the floating tool holder.

[0040] The adjusting member 30 and the first elastic member 40 are both accommodated in the accommodation cavity 11. One end of the adjusting member 30 facing the clamping member 20 forms a second abutting surface 31. The second abutting surface 31 can approach or move away from the first abutting surface 21. The opposite ends of the first elastic member 40 are respectively abutted against the first abutting surface 21 and the second abutting surface 31 to apply an elastic acting force to the clamping member 20, so that during the process of putting on a dental appliance or deburring, the clamping member 20 can elastically reciprocate along its own axis direction in the accommodation cavity 11 to meet the processing requirements.

[0041] In the embodiments provided by the present application, since both ends of the first elastic member 40 are respectively abutted against the first abutting surface 21 and the second abutting surface 31, by controlling the adjusting member 30 to approach or move away from the clamping member 20, the magnitude of the elastic acting force exerted by the first elastic member 40 on the clamping member 20 is adjusted. If the second abutting surface 31 is closer to the first abutting surface 21, the elastic acting force of the first elastic member 40 is larger, and the movable range of the clamping member 20 along the receiving cavity 11 is smaller. If the second abutting surface 31 is farther away from the first abutting surface 21, the elastic acting force of the first elastic member 40 is smaller, and the movable range of the clamping member 20 within the receiving cavity 11 is larger. Therefore, according to the requirements of different clamping members 20, the tension of the first elastic force 40 and the elastic reciprocating movement distance of the clamping member 20 can be adjusted, effectively improving the versatility of the floating tool shank, which can be applied to the installation operations of various types of dental braces, and at the same time is beneficial to improving work efficiency, reducing the labor intensity of employees and labor costs.

[0042] Furthermore, with reference to Figures 2 to 4 As shown, the floating tool shank further includes a driving member 50. The adjusting member 30 is provided with an internal thread portion 32, and the driving member 50 is provided with an external thread portion 51. The external thread portion 51 and the internal thread portion 32 form a threaded connection and cooperation. When the driving member 50 rotates along its own axis, through the cooperation of the external thread portion 51 and the internal thread portion 32, the adjusting member 30 can reciprocate along the axis of the driving member 50, thereby driving the adjusting member 30 to approach or move away from the clamping member 20.

[0043] In a feasible embodiment, the internal thread portion 32 is an internal thread hole penetrating through the adjusting member 30. The driving member 50 includes a rod body, and the external thread portion 51 is an external thread section formed on the outer peripheral surface of the rod body. The rod body is inserted into the internal thread hole to form a threaded fit. When the driving member 50 rotates with its own axis as the center line, the rotational movement of the driving member 50 is converted into a linear movement of the adjusting member 30, driving the adjusting member 30 to approach or move away from the clamping member 20. For example, when the driving member 50 rotates clockwise, the adjusting member 30 approaches the clamping member 20, and when the driving member 50 rotates counterclockwise, the adjusting member 30 moves away from the clamping member 20.

[0044] In the embodiments provided by the present application, the outer contour surface of the adjusting member 30 is a polygonal surface, and the inner contour surface of the receiving cavity 11 matches the outer contour surface of the adjusting member 30, thereby restricting the rotational movement of the adjusting member 30 along its own axis direction. With reference to Figure 2As shown, the outer contour surface of the adjusting member 30 is hexagonal, and the inner contour surface of the accommodating cavity 11 is correspondingly hexagonal. When the adjusting member 30 is received in the accommodating cavity 11, it can only perform axial linear movement and cannot rotate, so that the rotational movement of the driving member 50 can be converted into the linear movement of the clamping member 20. In other embodiments, the outer contour surface of the adjusting member 30 and the inner contour surface of the accommodating cavity 11 can adopt other polygons, as long as it can ensure that the adjusting member 30 cannot rotate, which is not limited herein.

[0045] For the convenience of the operator to operate the driving member 50, such as Figure 2 As shown, the accommodating cavity 11 forms a second opening 13 on the end surface of the second end of the tool handle main body 10. At least part of the driving member 50 extends out of the accommodating cavity 11 from the second opening 13, and an operation portion 52 is formed at one end of the driving member 50 extending out of the accommodating cavity 11. Since the adjusting member 30 is received in the accommodating cavity 11, it is difficult for the operator to drive the movement of the adjusting member 30 in the accommodating cavity 11. Therefore, part of the driving member 50 is received in the accommodating cavity 11, and the other part is located outside the accommodating cavity 11. The driving member 50 located in the accommodating cavity 11 is in threaded fit connection with the adjusting member 30. The operator can rotate the operation portion 52 located outside the accommodating cavity 11 to realize the rotation of the driving member 50 along its own axis, and further drive the linear movement of the adjusting member 30.

[0046] Preferably, as Figure 2 shown, the operation portion 52 includes a main body 521 and a plurality of ribs 522 provided on the outer surface of the main body 521. When the driving member 50 is rotated, only by rotating the main body 521 can the driving member 50 be rotated along its own axis. A plurality of ribs 522 are provided on the outer surface of the main body 521 to make the main body 521 of the operation portion 52 easier to hold and prevent slipping during the rotation process.

[0047] In the embodiment provided by the present application, the first elastic member 40 includes a spring, and the opposite ends of the spring are respectively abutted against the first abutting surface 21 and the second abutting surface 31. Since the structure of the spring is relatively simple and it is relatively easy to be received in the accommodating cavity 11, under the action of the adjusting member 30, it can apply an appropriate elastic acting force to the clamping member 20 to adjust the range in which the clamping member 20 can move in the accommodating cavity 11. In other embodiments, the first elastic member 40 can adopt other structures or components that can generate elastic acting forces, which are not limited herein.

[0048] For the convenience of fixing and replacing the clamping member 20, referring to Figure 1 and Figure 2As shown in the figure, the floating tool shank is further provided with a limiting member 60. The limiting member 60 can move along a first preset path, and the first preset path has a first end and a second end. Specifically: when the limiting member 60 is located at the first end of the first preset path, the limiting member 60 forms a limiting fit with the clamping member 20 to limit the movement of the clamping member 20 within a preset range, thereby fixing the clamping member 20; when the limiting member 60 is located at the second end of the first preset path, the limiting member 60 releases the limiting fit with the clamping member 20, and the clamping member 20 can be disengaged from the floating tool shank. When the floating tool shank is operating, the limiting member 60 is located at the first end of the first preset path. When it is necessary to replace the clamping member 20, the limiting member 60 is driven to move to the second end of the first preset path, so as to quickly replace and install various types of clamping members 20.

[0049] The first preset path can be a linear movement path or a rotational movement path, which is not limited herein. In the embodiments provided in the present application, the first preset path is a rotational movement path. Specifically, a pivot seat 14 is provided on the outer surface of the tool shank body 10, and the limiting member 60 is pivotally connected to the pivot seat 14. The limiting member 60 is in a long strip shape, and the length direction of the long strip shape has a first end and a second end. The pivot point of the limiting member 60 and the pivot seat 14 is located between the first end and the second end of the limiting member 60. The first preset path is a rotational movement path of the limiting member 60 centered on the pivot point. Specifically:

[0050] A limiting portion 61 is provided at the first end of the limiting member 60, and a portion to be limited 22 is provided on the clamping member 20. When the limiting member 60 is located at the first end of the first preset path, the limiting portion 61 abuts against the portion to be limited 22, so that the clamping member 20 cannot continue to move away from the receiving cavity 11, thereby limiting the movement of the clamping member 20 within a preset range. When the limiting member 60 is located at the second end of the first preset path, the limiting portion 61 is misaligned with the portion to be limited 22, and the movement of the clamping member 20 is no longer restricted by the limiting member 60, so that the clamping member 20 can be disengaged from the receiving cavity 11, thereby replacing the clamping member 20.

[0051] A second elastic member 62 is provided between the second end of the limiting member 60 and the outer surface of the tool holder body 10. The second elastic member 62 is preferably a spring. In the normal state and when the floating tool holder is working, the second elastic member 62 is in a natural elongation state, and the limiting member 60 is at the first end of the first preset path. The limiting portion 61 abuts against the limited portion 22 of the clamping member 20, so that the clamping member 20 can only move within a limited range. When the clamping member 20 needs to be replaced, by pressing the second end of the limiting member 60, the limiting member 60 rotates around the pivot seat 14, and the limiting member 60 moves to the second end of the second preset path. At this time, the second elastic member 62 is compressed, thereby accumulating elastic restoring force. After replacing the clamping member 20, the limiting member 60 is released, and the limiting member 60 returns to the initial state under the action of the elastic restoring force of the second elastic member 62, and re-limits the clamping member 20, so that various types of screws and grinding heads can be quickly replaced.

[0052] Preferably, the limiting portion 61 is a limiting hook extending towards the clamping member 20, and the limited portion 22 is a limiting boss arranged along the circumferential direction of the clamping member 20. When the limiting member 60 rotates to the first end of the first preset path, the limiting hook can abut against the limiting boss to form a limiting fit, and the limiting hook can limit the clamping member 20 from continuing to move away from the receiving cavity 11. In other embodiments, the limiting portion 61 and the limited portion 22 can adopt other structures or components that can form a limiting fit, which are not limited herein.

[0053] In order to improve the fixing and limiting effect of the limiting member 60 on the clamping member 20, refer to Figure 3 As shown, a plurality of limiting members 60 are provided. The plurality of limiting members 60 are spaced apart on the outer surface of the tool holder body 10. In the embodiment provided by the present application, two limiting members 60 are provided, and the two limiting members 60 are symmetrically distributed on the outer surface of the tool holder body 10, thereby being able to strengthen the limiting effect on the clamping member 20. More limiting members 60 can also be adopted. The plurality of limiting members 60 are evenly spaced on the outer surface of the tool holder body 10 to achieve uniform limiting of the clamping member 20. The number of limiting members 60 can be set according to actual operation requirements, which are not limited herein.

[0054] In order to keep the limiting member 60 at the first end of the first preset path, a blocking portion 15 is provided on the outer surface of the tool holder body 10. When the limiting member 60 is at the first end of the first preset path, the blocking portion 15 abuts against the limiting member 60 to limit the further rotation of the limiting member 60.

[0055] In the embodiments provided by the present application, the blocking portion 15 is disposed at a position on the outer surface of the tool handle main body 10 close to the first opening 12. When the limiting member 60 moves to the first end of the first preset path and the limiting portion 61 and the portion to be limited 22 form a limiting fit, the blocking portion 15 abuts against the limiting member 60 to prevent the limiting member 60 from continuing to move. The number of the blocking portions 15 is adapted to the number of the limiting members 60 to ensure that there is a good limiting effect between the limiting portion 61 of each limiting member 60 and the portion to be limited 22 of the clamping member 20.

[0056] Referring to Figure 2 As shown, the floating tool handle of the present application further includes a connecting member 70. The connecting member 70 is detachably connected to the second end of the tool handle main body 10. Through the connecting member 70, the floating tool handle can be connected to a machine tool or other machinery. The structure of the connecting member 70 can refer to the connection structure in the prior art and will not be limited herein.

[0057] The structure, features and effects of the present utility model have been described in detail based on the embodiments shown in the drawings. The above are only the preferred embodiments of the present utility model, but the present utility model is not limited to the scope defined by the drawings. Any changes made according to the concept of the present utility model, or equivalent embodiments modified into equivalent changes, still within the spirit covered by the specification and the drawings, shall be within the protection scope of the present utility model.

Claims

1. A floating tool holder, characterized in that, Comprising: A tool handle body having a first end and a second end, with a receiving cavity formed inside the tool handle body, and a first opening formed at the end face of the first end of the tool handle body for the receiving cavity; A clamping member, at least a part of which extends into the receiving cavity from the first opening, and a first abutting surface is formed at the end of the clamping member extending into the receiving cavity; An adjusting member received in the receiving cavity, with a second abutting surface formed at one end of the adjusting member facing the clamping member, and the second abutting surface can approach or move away from the first abutting surface; A driving member having an external thread portion provided thereon, and an internal thread portion provided on the adjusting member, and the external thread portion and the internal thread portion form a threaded connection and cooperation. When the driving member rotates about its own axis as the center line, the adjusting member is driven to approach or move away from the clamping member; A first elastic member received in the receiving cavity, with opposite ends of the first elastic member respectively abutting against the first abutting surface and the second abutting surface to apply an elastic acting force to the clamping member, so that the clamping member can elastically reciprocate; 2. The floating tool holder according to claim 1, wherein, The outer contour surface of the adjusting member is a polygonal surface, and the inner contour surface of the receiving cavity matches the outer contour surface of the adjusting member; 3. The floating tool holder according to claim 1, wherein, A second opening is formed at the end face of the second end of the tool handle body for the receiving cavity, and at least a part of the driving member extends out of the receiving cavity from the second opening, and an operating portion is formed at the end of the driving member extending out of the receiving cavity; 4. The floating tool holder according to claim 3, characterized in that, The operating portion includes a main body and a plurality of ribs provided on the outer surface of the main body; 5. The floating tool holder according to claim 1, wherein The floating tool handle is further provided with a limiting member which can move along a first preset path having a first end and a second end, wherein: When the limiting member is located at the first end of the first preset path, the limiting member forms a limiting cooperation with the clamping member to limit the movement of the clamping member within a preset range; When the limiting member is located at the second end of the first preset path, the limiting member releases the limiting cooperation with the clamping member; 6. The floating tool holder according to claim 5, wherein, A pivoting seat is provided on the outer surface of the tool handle body, and the limiting member is pivotally connected to the pivoting seat. The limiting member has a first end and a second end, and the pivotal connection point between the limiting member and the pivoting seat is located between the first end and the second end of the limiting member. The first preset path is a rotational movement path of the limiting member centered on the pivotal connection point, wherein: A limiting portion is provided at the first end of the limiting member, and a portion to be limited is provided on the clamping member. When the limiting member is located at the first end of the first preset path, the limiting portion abuts against the portion to be limited to limit the movement of the clamping member within a preset range. When the limiting member is located at the second end of the first preset path, the limiting portion is misaligned with the portion to be limited; A second elastic member is provided between the second end of the limiting member and the outer surface of the tool handle body.

7. The floating tool holder according to claim 6, wherein, The limiting part is a limiting hook provided at the first end of the limiting member, and the part to be limited is a limiting boss arranged along the circumferential direction of the clamping member. When the limiting member moves to the first end of the first preset path, the limiting hook abuts against the limiting boss to limit the movement of the clamping member within a preset range.

8. The floating tool holder according to claim 5, characterized in that, A plurality of the limiting members are provided, and the plurality of limiting members are spaced apart and distributed on the outer surface of the tool holder body.

9. The floating tool holder according to claim 5, wherein, A blocking part is provided on the outer surface of the tool holder body. When the limiting member is located at the first end of the first preset path, the blocking part abuts against the limiting member.

10. The floating tool holder according to claim 1, characterized in that, The floating tool holder further includes a connecting member, and the connecting member is detachably connected to the second end of the tool holder body.

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