Tool for machining square inner arc workpiece through numerical control lathe
By setting clamping grooves on the inner wall of the CNC lathe tool body and using screws to lock the positioning surface of the workpiece, the problem that traditional tooling is difficult to ensure processing accuracy and efficiency is solved, and efficient and low-cost processing effects are achieved.
Patent Information
- Application Number
- CN202422546116.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-22
AI Technical Summary
Traditional tooling is unable to ensure the form and position tolerances of square inner arc workpieces, resulting in unsatisfactory machining accuracy, low efficiency and high cost.
A tooling for machining square inner arc workpieces on a CNC lathe is designed. Multiple clamping grooves are set on the inner wall of the tooling body, and the three positioning surfaces of the workpiece are locked in the clamping grooves by a first screw and a second screw to achieve precise positioning.
The machining accuracy of the workpiece is improved, multiple workpieces can be clamped at one time, the machining efficiency is improved and the production cost is reduced.
Smart Images
Figure CN223313492U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of processing square inner arc workpieces by CNC lathes, in particular to a tool for processing square inner arc workpieces by CNC lathes. Background Art
[0002] CNC lathe processing of square inner arc workpiece refers to the use of CNC lathe to process a workpiece with a square appearance but an arc shape inside.
[0003] The difficulty in machining square internal arc workpieces lies in the strict requirements for dimensional and geometric tolerances. This is because the machining surface of such workpieces is typically less than a 180° arc. During machining, both the surface circularity and the precise position of the workpiece must be guaranteed. However, when using traditional tooling, the two-jaw chuck often has large errors in workpiece positioning, making it difficult to accurately position the workpiece and maintain geometric tolerances. Ultimately, the workpiece machining accuracy falls far short of product requirements. Furthermore, traditional two-jaw chucks can only process one workpiece at a time, resulting in low machining efficiency and high costs.
[0004] Therefore, it is difficult to ensure the shape and position tolerances of square inner arc workpieces using traditional tooling, which makes it difficult to ensure that the processing accuracy of the workpiece meets the requirements, resulting in low processing efficiency and high cost. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a tooling for processing square inner arc workpieces on a CNC lathe. By clamping the square inner arc workpiece on the inner wall of the tooling body, the workpiece is accurately positioned so that its shape and position tolerances meet the requirements.
[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:
[0007] A tool for machining a square inner arc workpiece on a CNC lathe, comprising:
[0008] The main body is annular, and a plurality of clamping grooves are opened on the inner wall of the main body. The plurality of clamping grooves are evenly arranged on the inner wall of the main body, and each clamping groove is matched with the workpiece for connection.
[0009] The first screw is arranged on the upper part of the main body, and the end portion of the first screw is screwed to the workpiece.
[0010] The second screw is arranged at the lower part of the main body, located at a diagonal position of the first screw, and is connected to the workpiece. The first screw and the second screw are used to lock the workpiece in the clamping groove.
[0011] Compared with the prior art, the utility model has the following advantages:
[0012] The workpiece is clamped on the main body through the clamping groove, the first screw and the second screw. The tooling and the three positioning surfaces of the square inner arc workpiece can be effectively matched together through the first screw and the second screw, thereby ensuring the form and position tolerances of the workpiece, so that the processing accuracy of the workpiece meets the requirements, and multiple workpieces can be clamped at one time, thereby improving processing efficiency and reducing production costs.
[0013] More preferably, the clamping groove includes: a bottom wall, two first inner walls and a second inner wall, the bottom wall is located between the two first inner walls, and there is a distance between the first inner wall and the bottom wall.
[0014] The two first inner walls are positioned opposite each other, and the second inner wall is integrally connected to the first inner wall and the bottom wall, respectively. The bottom surface of the workpiece is connected to the bottom wall via a first screw and a second screw. One side surface of the workpiece abuts the first inner wall, and the other side surface abuts the second inner wall, with the curved surface of the workpiece facing the center of the body.
[0015] By adopting the above technical solution, the three positioning surfaces of the workpiece are connected in the clamping groove, and the workpiece is accurately positioned on the body, so that the form and position tolerances of the workpiece meet the processing requirements.
[0016] Further preferably, a mounting groove is defined between the first inner wall and the bottom wall, and the right-angled side of the workpiece is located in the mounting groove.
[0017] By adopting the above technical solution, during the process of installing and positioning the workpiece, the technician operates the relative position of the body and the workpiece from within the installation slot, thereby facilitating the positioning of the workpiece within the clamping slot.
[0018] More preferably, the cross section of the mounting groove is in the shape of a notched circle.
[0019] By adopting the above technical solution, the mounting groove can meet the operational requirements of clamping the workpiece, making it easy to disassemble and assemble the workpiece.
[0020] Further optimization is that a first screw hole and a second screw hole are respectively opened on the main body, the first screw passes through the first screw hole to be screwed to the workpiece, and the second screw passes through the second screw hole to be screwed to the workpiece.
[0021] By adopting the above technical solution, the workpiece is locked on the bottom wall of the clamping groove through the first screw hole and the second screw hole, thereby achieving accurate positioning of the workpiece.
[0022] Further optimization is that the diameter of the first screw hole is larger than the diameter of the second screw hole.
[0023] The above technical solution is adopted to meet the requirements that the first screw passes through the first screw hole and the second screw passes through the second screw hole.
[0024] Further optimization is that the edge line of the second inner wall is an arc, and the curvature of the edge line is consistent with the curvature of the curved surface of the workpiece.
[0025] By adopting the above technical solution, the clamping groove and the workpiece are fully matched, ensuring the accurate positioning of the body and clamping of the workpiece.
[0026] Further optimization is that the distance between the two first inner walls is equal to the length of the workpiece.
[0027] By adopting the above technical solution, the workpiece and the clamping groove are installed exactly together.
[0028] Further optimization is that the length of the first screw and the length of the second screw are both smaller than the sum of the thickness of the body and the thickness of the workpiece.
[0029] By adopting the above technical solution, it is ensured that the ends of the first screw and the second screw are located inside the workpiece, thereby avoiding contact with a tool on a CNC lathe and affecting smooth processing of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 Schematic diagram of the structure of this embodiment.
[0031] Figure 2 Schematic diagram of the structure of the clamping groove in this embodiment.
[0032] Figure 3 Schematic diagram of the top view of the main body in this embodiment.
[0033] Figure 4 Schematic diagram of the structure of the first screw in this embodiment.
[0034] Figure 5 Schematic diagram of the structure of the second screw in this embodiment.
[0035] Figure 6 This is a structural diagram of the state in which the workpiece is clamped in the body in this embodiment.
[0036] Figure markings: 1-main body; 10-first screw hole; 11-clamping groove; 111-bottom wall; 112-first inner wall; 113-second inner wall; 12-mounting groove; 13-second screw hole; 2-workpiece; 3-first screw; 4-second screw. DETAILED DESCRIPTION
[0037] The following is combined with Figures 1-6 The utility model is further introduced in detail.
[0038] A tool for machining a square inner arc workpiece 2 on a CNC lathe, such as Figure 1 Shown, including:
[0039] The main body 1 is annular and has multiple clamping grooves 11 evenly distributed on its inner wall. Each clamping groove 11 engages with three positioning surfaces of the workpiece 2. A first screw 3 is located at the top of the main body 1, with its end threadedly connected to the workpiece 2. A second screw 4 is located at the bottom of the main body 1, diagonally opposite the first screw 3, and is connected to the workpiece 2. The first and second screws 3 and 4 are used to lock the workpiece 2 in the clamping grooves 11.
[0040] The workpiece 2 is clamped on the main body 1 through the clamping groove 11, the first screw 3, and the second screw 4. The tooling and the three positioning surfaces of the square inner arc workpiece 2 can be effectively matched together through the first screw 3 and the second screw 4, thereby ensuring the form and position tolerances of the workpiece 2, so that the processing accuracy of the workpiece 2 meets the requirements, and multiple workpieces 2 can be clamped at one time, thereby improving processing efficiency and reducing production costs.
[0041] Specifically, such as Figure 1 and Figure 2 As shown, in this embodiment, the clamping groove 11 includes: a bottom wall 111, two first inner walls 112 and a second inner wall 113. The bottom wall 111 is located between the two first inner walls 112, and there is a distance between the first inner wall 112 and the bottom wall 111. The two first inner walls 112 are positioned relative to each other, and the second inner wall 113 is integrally connected to the first inner wall 112 and the bottom wall 111 respectively. The bottom surface of the workpiece 2 is connected to the bottom wall 111 by a first screw 3 and a second screw 4. One side of the workpiece 2 abuts against the first inner wall 112, and the other side abuts against the second inner wall 113, and the arcuate surface of the workpiece 2 faces the center of the main body 1. The three positioning surfaces of the workpiece 2 are connected in the clamping groove 11, and the workpiece 2 is accurately positioned on the main body 1, so that the shape and position tolerances of the workpiece 2 meet the processing requirements.
[0042] Specifically, such as Figure 1 and Figure 2 As shown, in this embodiment, a mounting groove 12 is defined between the first inner wall 112 and the bottom wall 111, and the right-angled side of the workpiece 2 is located within the mounting groove 12. During the installation and positioning of the workpiece 2, a technician operates the relative position of the body 1 and the workpiece 2 from within the mounting groove 12, thereby facilitating the positioning of the workpiece 2 within the clamping groove 11.
[0043] Specifically, such as Figure 2 and Figure 3 As shown, in this embodiment, the cross section of the mounting groove 12 is in the shape of a notched circle, so that the mounting groove 12 meets the operational requirements of clamping the workpiece 2 and facilitates the disassembly and assembly of the workpiece 2.
[0044] Specifically, such as Figure 1As shown, in this embodiment, a first screw hole 10 and a second screw hole 13 are respectively provided on the main body 1, the first screw 3 passes through the first screw hole 10 and is screwed to the workpiece 2, and the second screw 4 passes through the second screw hole 13 and is screwed to the workpiece 2, and the workpiece 2 is locked on the bottom wall 111 of the clamping groove 11 through the first screw hole 10 and the second screw hole 13 to achieve accurate positioning of the workpiece 2.
[0045] Specifically, such as Figure 1 and Figure 2 As shown, in this embodiment, the diameter of the first screw hole 10 is larger than the diameter of the second screw hole 13 to meet the requirements of the first screw 3 passing through the first screw hole 10 and the second screw 4 passing through the second screw hole 13.
[0046] Specifically, such as Figure 1 、 Figure 2 as well as Figure 6 As shown, in this embodiment, the edge line of the second inner wall 113 is an arc, and the curvature of the edge line is consistent with the curvature of the curved surface of the workpiece 2, so that the clamping groove 11 is fully matched with the workpiece 2, ensuring that the main body 1 is accurately positioned and clamped.
[0047] Further optimization is that the distance between the two first inner walls 112 is equal to the length of the workpiece 2 , and the workpiece 2 and the clamping groove 11 are just installed together.
[0048] Specifically, as shown in the figure Figure 1 、 Figure 4 as well as Figure 5 As shown, in this embodiment, the length of the first screw 3 and the length of the second screw 4 are both less than the sum of the thickness of the body 1 and the thickness of the workpiece 2, ensuring that the ends of the first screw 3 and the second screw 4 are located inside the workpiece 2, avoiding contact with the tool on the CNC lathe and affecting the smooth processing of the workpiece 2.
[0049] The installation process of this embodiment is:
[0050] With the aid of auxiliary tools, the workpiece 2 is first placed into the body 1. The first screw 3 is then tightened through the first screw hole 10 and the second screw 4 through the second screw hole 13 onto the workpiece 2 to secure the workpiece 2. After machining is complete, the first screw 3 is first unscrewed from the first screw hole 10 and the second screw 4 from the second screw hole 13. The workpiece 2 is then removed from the clamping slot 11 using the auxiliary tool.
[0051] To sum up, the tooling has a simple structure and has the advantages of quick installation, accurate positioning and simple operation. Moreover, the tooling is highly targeted and is relatively stable for the processing of square inner arc workpieces 2. For batch production of square inner arc workpieces 2, higher production efficiency and processing accuracy can be achieved.
[0052] This specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as they are within the scope of protection of the utility model, they are protected by patent law.
Claims
1. A tool for machining a square inner arc workpiece (2) on a CNC lathe, characterized in that: include: The main body (1) is annular, and a plurality of clamping grooves (11) are provided on the inner wall thereof. The plurality of clamping grooves (11) are evenly arranged on the inner wall of the main body (1), and each of the clamping grooves (11) is cooperatively connected with the workpiece (2); A first screw (3) is provided on the upper portion of the body (1), and an end portion thereof is screwed to the workpiece (2); The second screw (4) is provided at the lower part of the main body (1), located at a diagonal position of the first screw (3), and is connected to the workpiece (2). The first screw (3) and the second screw (4) are used to lock the workpiece (2) in the clamping groove (11).
2. The tooling for machining a square inner arc workpiece (2) on a CNC lathe according to claim 1 is characterized in that: The clamping groove (11) comprises: a bottom wall (111), two first inner walls (112) and a second inner wall (113); the bottom wall (111) is located between the two first inner walls (112), and there is a distance between the first inner wall (112) and the bottom wall (111); The two first inner walls (112) are positioned opposite to each other, and the second inner wall (113) is integrally connected to the first inner wall (112) and the bottom wall (111) respectively; the bottom surface of the workpiece (2) is connected to the bottom wall (111) by the first screw (3) and the second screw (4); one side surface of the workpiece (2) abuts against the first inner wall (112), and the other side surface abuts against the second inner wall (113), and the arcuate surface of the workpiece (2) faces the center of the body (1).
3. The tooling for machining a square inner arc workpiece (2) on a CNC lathe according to claim 2 is characterized in that: A mounting groove (12) is provided between the first inner wall (112) and the bottom wall (111), and the right-angled side of the workpiece (2) is located in the mounting groove (12).
4. The tooling for machining a square inner arc workpiece (2) on a CNC lathe according to claim 3 is characterized in that: The cross section of the installation groove (12) is in the shape of a notched circle.
5. The tooling for machining a square inner arc workpiece (2) on a CNC lathe according to claim 2, characterized in that: The body (1) is provided with a first screw hole (10) and a second screw hole (13), respectively. The first screw (3) passes through the first screw hole (10) and is screwed to the workpiece (2), and the second screw (4) passes through the second screw hole (13) and is screwed to the workpiece (2).
6. The tooling for machining a square inner arc workpiece (2) on a CNC lathe according to claim 5, characterized in that: The diameter of the first screw hole (10) is greater than the diameter of the second screw hole (13).
7. The tooling for machining a square inner arc workpiece (2) on a CNC lathe according to claim 2, characterized in that: The edge line of the second inner wall (113) is an arc, and the curvature of the edge line is consistent with the curvature of the curved surface of the workpiece (2).
8. The tooling for machining a square inner arc workpiece (2) on a CNC lathe according to claim 5, characterized in that: The distance between the two first inner walls (112) is equal to the length of the workpiece (2).
9. The tooling for machining a square inner arc workpiece (2) on a CNC lathe according to claim 1, characterized in that: The length of the first screw (3) and the length of the second screw (4) are both less than the sum of the thickness of the body (1) and the thickness of the workpiece (2).