Cutting clamp and machine tool
By designing a cutting fixture, the rotation of the rotating shaft achieves rapid positioning of multi-angle cutting, the problem of cumbersome cutting positioning in the prior art is solved, and the processing efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202422461467.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-11
AI Technical Summary
When the existing cutting fixtures require multiple angles to be cut, the positioning steps are complicated and affect the processing efficiency.
A cutting fixture is designed, through the cooperation of the third limit structure, the first limit structure and the second limit structure, and the rotation of the rotating shaft achieves rapid and accurate positioning and clamping, eliminating the positioning step of multi-angle switching.
It improves the processing efficiency of the parts to be cut, simplifies the positioning process of multi-angle cutting, and improves the processing accuracy and equipment life.
Smart Images
Figure CN223172499U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machining, in particular to a cutting fixture and a machining machine tool. Background Art
[0002] With the continuous development of the manufacturing industry, the demand for precision machining of various workpieces is increasing day by day. Especially in cutting operations, the application of cutting fixtures has become more and more extensive. Cutting fixtures are usually used to fix the workpiece to be machined and ensure the stability of the workpiece at different angles. However, due to the different cutting requirements of different workpieces to be cut, the requirements for fixtures are also different. In the related art, when a single workpiece to be cut needs to be cut at multiple angles, the positioning of the workpiece to be cut at each angle needs to be carried out by dial indicator, and the positioning steps are cumbersome, which directly affects the machining efficiency. Summary of the Utility Model
[0003] The first aspect of the utility model provides a cutting fixture, which has the advantages of quickly and accurately positioning and clamping the workpiece to be machined.
[0004] The cutting fixture according to the embodiment of the first aspect of the utility model includes: a fixed seat formed with a connection hole; a rotating shaft rotatably arranged in the connection hole, and one of the fixed seat and the rotating shaft is formed with a first limiting structure and a second limiting structure arranged at intervals in the circumferential direction of the connection hole, and the other of the fixed seat and the rotating shaft is formed with a third limiting structure. In the circumferential direction of the connection hole, a fitting space is defined between the first limiting structure and the second limiting structure, and the third limiting structure is movably arranged in the fitting space between a first machining angle and a second machining angle. At the first machining angle, the third limiting structure abuts against the first limiting structure, and at the second machining angle, the third limiting structure abuts against the second limiting structure; a clamping mechanism arranged on the rotating shaft and used for fixing the workpiece to be cut.
[0005] The cutting fixture according to the embodiment of the first aspect of the utility model, through the cooperation of the third limiting structure with the first limiting structure and the second limiting structure, only by rotating the rotating shaft, the switching of the rotating shaft between the first machining angle and the second machining angle can be realized, and the positioning step of the rotating shaft switching between the first machining angle and the second machining angle is omitted, so that the machining efficiency of the workpiece to be cut can be improved.
[0006] According to some embodiments of the present utility model, a limiting groove extending along the circumferential direction of the connection hole is formed on one of the inner circumferential surface of the connection hole and the outer circumferential surface of the rotating shaft. The matching space is formed in the limiting groove. The two inner side surfaces of the limiting groove on both sides in the circumferential direction of the connection hole respectively constitute the first limiting structure and the second limiting structure. The third limiting structure protrudes from the other one of the inner circumferential surface of the connection hole and the outer circumferential surface of the rotating shaft.
[0007] According to some embodiments of the present utility model, the two inner side surfaces of the limiting groove on both sides in the circumferential direction of the connection hole are respectively a first limiting surface and a second limiting surface. The two side surfaces of the third limiting structure on both sides in the circumferential direction of the connection hole are respectively a third limiting surface and a fourth limiting surface. At the first processing angle, the first limiting surface is attached to the third limiting surface. At the second processing angle, the fourth limiting surface is attached to the second limiting surface.
[0008] According to some embodiments of the present utility model, the limiting groove is formed on the outer circumferential surface of the rotating shaft. In the axial direction of the connection hole, at least one end of the limiting groove extends to the end surface on one side of the rotating shaft.
[0009] According to some embodiments of the present utility model, in the axial direction of the connection hole, the length of the third limiting structure is not less than the length of the limiting groove.
[0010] According to some embodiments of the present utility model, the projections of the third limiting structure and the limiting groove on the reference surface are both in the shape of a sector extending along the circumferential direction of the connection hole. The reference surface is perpendicular to the axial direction of the connection hole.
[0011] According to some embodiments of the present utility model, it includes a locking member provided on the fixed seat. The locking member has a locking position and an unlocking position. In the locking position, the locking member locks the fixed seat and the rotating shaft. In the unlocking position, the locking member is spaced apart from the rotating shaft.
[0012] According to some embodiments of the present utility model, the clamping mechanism includes: a support plate formed with a positioning groove for positioning the workpiece to be cut; a fixed pressing block detachably provided on the support plate and used for fixing the workpiece to be cut on the support plate.
[0013] According to some embodiments of the present utility model, the support plate includes a bottom plate and a positioning plate detachably provided on the bottom plate. The positioning plate is formed with a positioning hole for positioning the workpiece to be cut. The positioning hole and the bottom plate jointly define the positioning groove.
[0014] According to some embodiments of the present utility model, it includes a limit pin. A first limit hole penetrating through the outer surface of the fixed seat is formed on the inner peripheral surface of the connection hole. A second limit hole is formed on the outer peripheral surface of the rotating shaft. At least a part of the first limit hole and the second limit hole are oppositely arranged. The limit pin is inserted into the first limit hole and then into the second limit hole. One of the first limit hole and the second limit hole is a sector extending along the circumferential direction of the connection hole.
[0015] The second aspect of the present utility model proposes a processing machine tool.
[0016] The processing machine tool according to the embodiment of the second aspect of the present utility model includes: the above-mentioned cutting fixture.
[0017] Through the cooperation of the third limit structure with the first limit structure and the second limit structure, the processing machine tool according to the embodiment of the second aspect of the present utility model can realize the switching of the rotating shaft between the first processing angle and the second processing angle only by rotating the rotating shaft, eliminating the positioning step of the rotating shaft switching between the first processing angle and the second processing angle, thereby improving the processing efficiency of the workpiece to be cut.
[0018] Some additional aspects and advantages of the present utility model will be given in the following description, some will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings
[0019] Figure 1 is a top view of the cutting fixture according to the embodiment of the present utility model;
[0020] Figure 2 is Figure 1 a cross-sectional view taken along the A-A section in
[0021] Figure 3 is Figure 1 a cross-sectional view taken along the B-B section in
[0022] Figure 4 is a state diagram when the third limit structure abuts against the first limit structure;
[0023] Figure 5 is a state diagram when the third limit structure abuts against the second limit structure;
[0024] Figure 6 is a structural schematic diagram of the formed workpiece;
[0025] Figure 7 is a side view of the formed workpiece;
[0026] Figure 8 is a cross-sectional view of the formed workpiece.
[0027] Reference numerals:
[0028] 100, cutting jig; 1, fixed seat; 11, connecting hole; 12, third limiting structure; 121, third limiting surface; 122, fourth limiting surface; 13, locking member; 14, limiting pin; 15, first limiting hole; 2, rotating shaft; 21, first limiting structure; 22, second limiting structure; 23, limiting groove; 231, first limiting surface; 232, second limiting surface; 24, second limiting hole; 3, clamping mechanism; 31, support plate; 311, bottom plate; 312, positioning plate; 3121, first sub-positioning plate; 3122, second sub-positioning plate; 32, positioning groove; 33, fixed pressing block; 331, pressing portion; 34, positioning hole; 200, processing machine tool; 300, formed workpiece; 310, pressing step. 320a, first through hole; 320b, second through hole; 320c, third through hole; 320d, fourth through hole. Detailed implementation manners
[0029] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the applicability of other processes and / or the use of other materials.
[0031] The cutting jig 100 according to the first aspect embodiment of the present invention will be described below with reference to the drawings.
[0032] As Figures 1-5As shown in the figure, the cutting fixture 100 according to the first aspect embodiment of the present utility model includes: a fixed seat 1, a rotating shaft 2, and a clamping mechanism 3. The fixed seat 1 is formed with a connection hole 11. The rotating shaft 2 is rotatably disposed in the connection hole 11. One of the fixed seat 1 and the rotating shaft 2 is formed with a first limiting structure 21 and a second limiting structure 22 that are circumferentially spaced along the connection hole 11. The other of the fixed seat 1 and the rotating shaft 2 is formed with a third limiting structure 12. In the circumferential direction of the connection hole 11, a fitting space is defined between the first limiting structure 21 and the second limiting structure 22. The third limiting structure 12 is movably disposed in the fitting space between a first processing angle and a second processing angle. At the first processing angle, the third limiting structure 12 abuts against the first limiting structure 21. At the second processing angle, the third limiting structure 12 abuts against the second limiting structure 22. The clamping mechanism 3 is disposed on the rotating shaft 2 and is used to fix the workpiece to be cut.
[0033] That is to say, the clamping mechanism 3 is rotatably disposed on the fixed seat 1 through the rotating shaft 2. The workpiece to be cut is fixed by the clamping mechanism 3, and the rotation of the rotating shaft 2 can drive the workpiece to be cut to rotate to different angles to meet the cutting requirements of the workpiece to be cut at different angles. Among them, through the rotation of the rotating shaft 2, the third limiting structure 12 can move circumferentially along the connection hole 11 between the first limiting structure 21 and the second limiting structure 22. The positions of the third limiting structure 12 can be better restricted by the first limiting structure 21 and the second limiting structure 22. When the third limiting structure 12 abuts against the first limiting structure 21, it is at the first processing angle, so that the workpiece to be cut can be rotated to the first processing angle for processing; when the third limiting structure 12 abuts against the second limiting structure 22, it is at the second processing angle, so that the workpiece to be cut can be rotated to the second processing angle for processing.
[0034] Therefore, through the cooperation of the third limiting structure 12 with the first limiting structure 21 and the second limiting structure 22, only by rotating the rotating shaft 2, the switching of the rotating shaft 2 between the first processing angle and the second processing angle can be realized, and the positioning steps for the rotating shaft 2 to switch between the first processing angle and the second processing angle are omitted. For example, when the rotating shaft 2 switches between the first processing angle and the second processing angle, there is no need for dial indicator positioning, thereby improving the processing efficiency of the workpiece to be cut.
[0035] For the cutting fixture 100 according to the first aspect embodiment of the present utility model, through the cooperation of the third limiting structure 12 with the first limiting structure 21 and the second limiting structure 22, only by rotating the rotating shaft 2, the switching of the rotating shaft 2 between the first processing angle and the second processing angle can be realized, and the positioning steps for the rotating shaft 2 to switch between the first processing angle and the second processing angle are omitted, thereby improving the processing efficiency of the workpiece to be cut.
[0036] According to some embodiments of the present utility model, a limiting groove 23 extending along the circumferential direction of the connecting hole 11 is formed on one of the inner circumferential surface of the connecting hole 11 and the outer circumferential surface of the rotating shaft 2. A fitting space is formed in the limiting groove 23. The inner side surfaces on both sides of the limiting groove 23 in the circumferential direction of the connecting hole 11 respectively constitute a first limiting structure 21 and a second limiting structure 22. A third limiting structure 12 protrudes from the other of the inner circumferential surface of the connecting hole 11 and the outer circumferential surface of the rotating shaft 2. Among them, the limiting groove 23 may be formed on the inner circumferential surface of the connecting hole 11, and the third limiting structure 12 is a protrusion formed on the outer circumferential surface of the rotating shaft 2; alternatively, the limiting groove 23 may be formed on the outer circumferential surface of the rotating shaft 2, and the third limiting structure 12 is a protrusion formed on the inner circumferential surface of the connecting hole 11, and no specific limitation is made here.
[0037] Taking the limiting groove 23 formed on the inner circumferential surface of the connecting hole 11 and the third limiting structure 12 protruding from the outer circumferential surface of the rotating shaft 2 as an example, the first limiting structure 21, the second limiting structure 22 and the third limiting structure 12 can make full use of the space on the outer side of the rotating shaft 2. Therefore, it is possible to avoid the first limiting structure 21, the second limiting structure 22 and the third limiting structure 12 occupying additional installation space, so that on the basis of ensuring that the occupied space of the rotating shaft 2 and the fixed seat 1 remains unchanged, the first limiting structure 21, the second limiting structure 22 and the third limiting structure 12 can be increased. In addition, by opening the limiting groove 23, the first limiting structure 21 and the second limiting structure 22 can be formed simultaneously, which can simplify the forming process of the first limiting structure 21 and the second limiting structure 22.
[0038] According to some embodiments of the present utility model, the two inner side surfaces of the limiting groove 23 on both sides in the circumferential direction of the connecting hole 11 are respectively a first limiting surface 231 and a second limiting surface 232, and the two side surfaces of the third limiting structure 12 on both sides in the circumferential direction of the connecting hole 11 are respectively a third limiting surface 121 and a fourth limiting surface 122. At a first processing angle, the first limiting surface 231 is in contact with the third limiting surface 121, and at a second processing angle, the fourth limiting surface 122 is in contact with the second limiting surface 232. That is to say, at the first processing angle, through the contact between the first limiting surface 231 and the third limiting surface 121, a surface contact is formed between the first limiting structure 21 and the third limiting structure 12; at the second processing angle, through the contact between the second limiting surface 232 and the third limiting surface 121, a surface contact is formed between the second limiting structure 22 and the third limiting structure 12. Therefore, it is possible to preferably increase the contact area between the third limiting structure 12 and the first limiting structure 21 at the first processing angle, and at the same time increase the contact area between the third limiting structure 12 and the second limiting structure 22 at the second processing angle, thereby improving the stability of the support of the first limiting structure 21 and the second limiting structure 22 for the third limiting structure 12. At the same time, it is possible to avoid damage caused by excessive local pressure due to too small contact area between the third limiting structure 12 and the first limiting structure 21 and the second limiting structure 22, so as to extend the service life of the cutting fixture 100.
[0039] According to some embodiments of the present utility model, the projections of the third limiting structure 12 and the limiting groove 23 on the reference plane are both sectors extending along the circumferential direction of the connecting hole 11, and the reference plane is perpendicular to the axial direction of the connecting hole 11. Thus, the limiting groove 23 and the third limiting structure 12 arranged in a sector shape can preferably ensure the surface contact when the third limiting structure 12 abuts against the first limiting structure 21 and the second limiting structure 22. At the same time, the third limiting structure 12 in a sector shape can preferably increase the connection area between the third limiting structure 12 and the outer peripheral surface of the rotating shaft 2 or the inner peripheral surface of the connecting hole 11, thereby improving the structural strength of the third limiting structure 12.
[0040] According to some embodiments of the present utility model, the limiting groove 23 is formed on the outer peripheral surface of the rotating shaft 2, and in the axial direction of the connecting hole 11, at least one end of the limiting groove 23 extends to the end surface on one side of the rotating shaft 2. That is to say, the third limiting structure 12 protrudes on the inner peripheral surface of the connecting hole 11, and in the axial direction of the connecting hole 11, at least one end of the limiting groove 23 forms an open loading port. Therefore, during the process of installing the rotating shaft 2 into the connecting hole 11, the third limiting structure 12 is aligned with the opening on one side of the limiting groove 23 in the axial direction of the connecting hole 11, and the rotating shaft 2 is aligned with the connecting hole 11 and inserted, thereby reducing the difficulty of installing the rotating shaft 2 into the fixed seat 1 and improving the assembly efficiency of the cutting fixture 100.
[0041] It should be noted that the above is only an example of the limiting groove 23 being provided on the outer peripheral surface of the rotating shaft 2. When the limiting groove 23 is provided on the inner peripheral surface of the connecting hole 11 and the third limiting structure 12 protrudes on the outer peripheral surface of the rotating shaft 2, one end of the limiting groove 23 in the axial direction of the connecting hole 11 extends to the end surface on one side of the fixing seat 1, so as to facilitate the insertion of the rotating shaft 2 into the connecting hole 11.
[0042] According to some embodiments of the present invention, in the axial direction of the connecting hole 11, the length of the third limiting structure 12 is not less than the length of the limiting groove 23. It can be that the length of the third limiting structure 12 is the same as the length of the limiting groove 23, or the length of the third limiting structure 12 is greater than the length of the limiting groove 23, and no specific limitation is made here. Therefore, in the axial direction of the connecting hole 11, the contact position when the first limiting structure 21 and the second limiting structure 22 abut against the third limiting structure 12 can be increased, so as to avoid local stress concentration to reduce the wear rate, and thus the service life of the cutting fixture 100 can be prolonged.
[0043] According to some embodiments of the present invention, the cutting fixture 100 further includes a locking member 13 provided on the fixing seat 1. The locking member 13 has a locking position and an unlocking position. In the locking position, the locking member 13 locks the fixing seat 1 and the rotating shaft 2. In the unlocking position, the locking member 13 is spaced apart from the rotating shaft 2. That is, when the third limiting structure 12 abuts against the first limiting structure 21 or the second limiting structure 22, the locking member 13 can be controlled to switch to the locking position to stably hold the rotating shaft 2 at the first processing angle or the second processing angle, so as to avoid the rotation of the rotating shaft 2 affecting the processing accuracy. In addition, when the angle of the rotating shaft 2 needs to be adjusted, the locking member 13 can be controlled to switch to the unlocking position so that the rotating shaft 2 can freely rotate in the connecting hole 11.
[0044] In a specific example, an assembly hole extending in the radial direction of the connecting hole 11 is formed on the fixing seat 1. One end of the assembly hole extends to the inner peripheral surface of the connecting hole 11, and the other end of the assembly hole extends to the outer surface of the fixing seat 1. The locking member 13 is a locking bolt, and an internal thread for screwing with the locking member 13 is formed on the inner peripheral surface of the assembly hole, so that the locking and releasing of the rotating shaft 2 can be realized by screwing in and out the locking member 13.
[0045] According to some embodiments of the present invention, the clamping mechanism 3 includes: a support plate 31 and a fixed pressure block 33. The support plate 31 is formed with a positioning groove 32 for positioning the workpiece to be cut. The fixed pressure block 33 is detachably provided on the support plate 31 and is used to fix the workpiece to be cut on the support plate 31. In other words, when processing the workpiece to be cut, the workpiece to be cut can be first placed in the positioning groove 32 formed on the support plate 31 to achieve positioning of the workpiece to be cut on the support plate 31, and then the workpiece to be cut is pressed by the fixed pressure block 33, thereby achieving fixation of the workpiece to be cut on the clamping mechanism 3. Therefore, by providing the positioning groove 32 on the support plate 31, the positioning accuracy of the workpiece to be cut on the clamping mechanism 3 can be improved to improve the processing accuracy of the workpiece to be cut, and the difficulty of fixing the workpiece to be cut on the clamping mechanism 3 can be simplified to improve the processing efficiency of the workpiece to be cut.
[0046] In a specific example, a pressing step 310 is formed on the outer circumference of the workpiece to be cut, and the fixed pressing block 33 has a pressing portion 331 located on the upper side of the pressing step 310 and abutting against the pressing step 310 along the axial direction of the positioning groove 32. After the fixed pressing block 33 is fixed to the support plate 31, the pressing portion 331 and the pressing step 310 can be limited to prevent the workpiece to be cut from escaping from the positioning groove 32. The pressing steps 310 can be arranged as a plurality distributed along the circumference of the positioning groove 32 on the outer circumference of the workpiece to be cut, and each pressing step 310 corresponds to a fixed pressing block 33, so as to enhance the fixing effect of the clamping mechanism 3 on the workpiece to be cut.
[0047] According to some embodiments of the present invention, the support plate 31 includes a base plate 311 and a positioning plate 312 detachably mounted on the base plate 311. The positioning plate 312 is formed with a positioning hole 34 for positioning the workpiece to be cut. The positioning hole 34 and the base plate 311 together define a positioning groove 32. In other words, the support plate 31 has a split structure. As a result, the positioning plate 312 can be replaced or adjusted according to the different specifications of the workpiece to be cut to ensure that the positioning groove 32 can be accurately adapted to the different specifications of the workpiece to be cut. In addition, compared to the overall structure of the support plate 31, the structures of the base plate 311 and the positioning plate 312 are simpler, thereby reducing the difficulty of manufacturing and processing the base plate 311 and the positioning plate 312.
[0048] In a specific example, the positioning plate 312 includes a first sub-positioning plate 3121 and a second sub-positioning plate 3122 arranged at radial intervals along the connecting hole 11, and the first sub-positioning plate 3121 and the second sub-positioning plate 3122 and the base plate 311 jointly define a positioning groove 32, and the fixed pressure block 33 is provided with two fixed pressure blocks 33 arranged at opposite sides of the positioning groove 32 along the axial direction of the connecting hole 11, and the fixed pressure block 33 is located between the first sub-positioning plate 3121 and the second sub-positioning plate 3122.
[0049] According to some embodiments of the present utility model, the cutting fixture 100 further includes a limit pin 14. A first limit hole 15 penetrating through to the outer surface of the fixed seat 1 is formed on the inner peripheral surface of the connection hole 11. A second limit hole 24 is formed on the outer peripheral surface of the rotating shaft 2. At least a part of the first limit hole 15 and the second limit hole 24 are oppositely arranged. The limit pin 14 is inserted into the first limit hole 15 and inserted into the second limit hole 24. One of the first limit hole 15 and the second limit hole 24 is a sector extending along the circumferential direction of the connection hole 11. Wherein, after inserting one side of the limit pin 14 into the first limit hole 15 and the second limit hole 24, the cooperation between the limit pin 14 and the first limit hole 15 can preferably prevent the limit pin 14 from generating displacement in the axial direction of the connection hole 11 with respect to the fixed seat 1. Through the cooperation between the limit pin 14 and the second limit hole 24, the position of the rotating shaft 2 in the axial direction of the connection hole 11 relative to the limit pin 14 can be preferably prevented. Therefore, through the cooperation between the limit pin 14 and the first limit hole 15 and the second limit hole 24, the position of the rotating shaft 2 in the axial direction relative to the fixed seat 1 can be preferably prevented, thereby realizing the function of positioning the rotating shaft 2 in the axial direction. In addition, by setting one of the first limit hole 15 and the second limit hole 24 as a sector hole, in the axial direction of the connection hole 11, the limit pin 14 can have a certain movement space in the first limit hole 15 or the second limit hole 24 to meet the requirement of the rotation of the rotating shaft 2 relative to the fixed seat 1.
[0050] Specifically, referring to Figures 1 to 6 as shown, the workpiece to be cut finally forms a formed workpiece 300 having a plurality of through holes arranged at equal intervals along the circumferential direction. The plurality of through holes are respectively a first through hole 320a, a second through hole 320b, a third through hole 320c and a fourth through hole 320d. When cutting the workpiece to be cut, first fix the workpiece to be cut on the clamping mechanism 3, as Figure 1 shown in. Then, rotate the rotating shaft 2 until the first limit structure 21 abuts against the third limit structure 12 and lock it with the locking member 13. At this time, cut the first through hole 320a with a wire cutting tool. Then rotate the rotating shaft 2 until the second limit structure 22 abuts against the third limit structure 12 and lock it with the locking member 13. At this time, cut the second through hole 320b with a wire cutting tool. After the first through hole 320a and the second through hole 320b are processed, remove the workpiece to be cut from the clamping mechanism 3, and after rotating it by ninety degrees, fix the workpiece to be cut on the clamping mechanism 3 again. Then rotate the rotating shaft 2 until the first limit structure 21 abuts against the third limit structure 12 and lock it with the locking member 13. At this time, cut the third through hole 320c with a wire cutting tool. Then rotate the rotating shaft 2 until the second limit structure 22 abuts against the third limit structure 12 and lock it with the locking member 13. At this time, cut the second through hole 320b with a wire cutting tool, thereby processing and forming as Figure 6The formed workpiece 300 shown in
[0051] The processing machine tool 200 according to an embodiment of the second aspect of the present invention will be described below with reference to the accompanying drawings.
[0052] The processing machine tool 200 according to an embodiment of the second aspect of the present invention includes: the above-mentioned cutting fixture 100.
[0053] The processing machine tool 200 according to an embodiment of the second aspect of the present invention, through the cooperation of the third limiting structure 12 with the first limiting structure 21 and the second limiting structure 22, can realize the switching of the rotating shaft 2 between the first processing angle and the second processing angle only by rotating the rotating shaft 2, eliminating the positioning step of the rotating shaft 2 switching between the first processing angle and the second processing angle, thereby improving the processing efficiency of the workpiece to be cut.
[0054] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0055] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.
Claims
1. A cutting fixture, characterized in that, Comprising: A fixed seat, which is formed with a connection hole; A rotating shaft, which is rotatably arranged in the connection hole. One of the fixed seat and the rotating shaft is formed with a first limiting structure and a second limiting structure that are circumferentially spaced along the connection hole, and the other of the fixed seat and the rotating shaft is formed with a third limiting structure. In the circumferential direction of the connection hole, a fitting space is defined between the first limiting structure and the second limiting structure, and the third limiting structure is movably arranged in the fitting space between a first processing angle and a second processing angle. At the first processing angle, the third limiting structure abuts against the first limiting structure, and at the second processing angle, the third limiting structure abuts against the second limiting structure; A clamping mechanism, which is arranged on the rotating shaft and is used for fixing the workpiece to be cut.
2. The cutting fixture according to claim 1, wherein One of the inner peripheral surface of the connection hole and the outer peripheral surface of the rotating shaft is formed with a limiting groove extending along the circumferential direction of the connection hole, and the fitting space is formed in the limiting groove. The two inner side surfaces of the limiting groove on both sides in the circumferential direction of the connection hole respectively constitute the first limiting structure and the second limiting structure, and the third limiting structure protrudes from the other of the inner peripheral surface of the connection hole and the outer peripheral surface of the rotating shaft.
3. The cutting jig according to claim 2, wherein The two inner side surfaces of the limiting groove on both sides in the circumferential direction of the connection hole are respectively a first limiting surface and a second limiting surface, and the two side surfaces of the third limiting structure on both sides in the circumferential direction of the connection hole are respectively a third limiting surface and a fourth limiting surface. At the first processing angle, the first limiting surface fits with the third limiting surface, and at the second processing angle, the fourth limiting surface fits with the second limiting surface.
4. The cutting fixture according to claim 3, characterized in that, The projections of the third limiting structure and the limiting groove on a reference plane are both in a fan shape extending along the circumferential direction of the connection hole, and the reference plane is perpendicular to the axial direction of the connection hole.
5. The cutting fixture according to claim 2, characterized in that, The limiting groove is formed on the outer peripheral surface of the rotating shaft. In the axial direction of the connection hole, at least one end of the limiting groove extends to the end surface on one side of the rotating shaft.
6. The cutting fixture according to claim 5, wherein, In the axial direction of the connection hole, the length of the third limiting structure is not less than the length of the limiting groove.
7. The cutting fixture according to claim 1, wherein It further includes a locking member arranged on the fixed seat. The locking member has a locking position and an unlocking position. In the locking position, the locking member locks the fixed seat and the rotating shaft, and in the unlocking position, the locking member is spaced from the rotating shaft.
8. The cutting jig according to claim 1, characterized in that, The clamping mechanism includes: A support plate, which is formed with a positioning groove for positioning the workpiece to be cut; A fixed pressing block, which is detachably arranged on the support plate and is used for fixing the workpiece to be cut on the support plate.
9. The cutting jig according to claim 8, wherein, The support plate includes a bottom plate and a positioning plate detachably arranged on the bottom plate. The positioning plate is formed with a positioning hole for positioning the workpiece to be cut, and the positioning hole and the bottom plate jointly define the positioning groove.
10. The cutting jig according to claim 1, wherein, Further included is a limit pin. A first limit hole penetrating through to the outer surface of the fixed seat is formed on the inner peripheral surface of the connection hole. A second limit hole is formed on the outer peripheral surface of the rotating shaft. At least a part of the first limit hole and the second limit hole are oppositely arranged. The limit pin is inserted into the first limit hole and then into the second limit hole. One of the first limit hole and the second limit hole is a sector extending along the circumferential direction of the connection hole.
11. A processing machine tool, characterized in that, Comprising: The fixture according to any one of claims 1-10.