Lathe fixture
By introducing a dual fixing method of pressing and clamping parts into the lathe fixture, the problem of vibration and deformation of workpieces with long axial direction during processing is solved, achieving workpiece stability and high-precision processing, extending the service life of the machine tool and reducing maintenance costs.
Patent Information
- Application Number
- CN202423005981.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing lathe fixtures are prone to causing workpiece vibration and deformation when machining workpieces with long axial directions, which affects machining accuracy.
Design a lathe fixture comprising a worktable, a support base, a first fixing component, and a second fixing component. The bottom and top of the workpiece are fixed by pressing and clamping components respectively, ensuring the stability of the workpiece during the machining process.
It effectively avoids vibration and deformation of workpieces during processing, improves processing accuracy, reduces machine tool maintenance frequency and extends service life, and improves production efficiency.
Smart Images
Figure CN223506736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece processing technology, specifically a lathe fixture. Background Technology
[0002] A fixture is a device used to fix and position workpieces, and it is widely used in various industrial fields such as machining, assembly, welding, and measurement. Its main function is to ensure that the workpiece remains stable during processing, thereby improving machining accuracy and production efficiency.
[0003] Existing lathe fixtures typically employ a three-jaw chuck, primarily used to secure the bottom of the workpiece. This design works effectively in many standard machining tasks, providing sufficient clamping force and stability to ensure the workpiece remains stationary during machining. However, when processing workpieces with long axial lengths, this single bottom-fixing method has significant limitations. For workpieces with long axial lengths, the large overhang may cause vibration or deformation during machining, thus affecting machining accuracy. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a lathe fixture in light of the current state of the technology.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a lathe fixture is provided for fixing a workpiece, wherein the bottom of the workpiece has an outwardly extending protrusion, and the fixture includes:
[0006] A workbench is provided with a support base, which is used to provide support for the workpiece;
[0007] A first fixing component is disposed on the side of the support base and has a rotatably disposed pressing member that movably abuts against the protrusion for fixing the bottom of the workpiece.
[0008] The second fixing component is disposed on the worktable and has a clamping member located above the pressing member. The projection of the clamping member along the axis of the workpiece does not coincide with that of the pressing member. The clamping member abuts against the outer side wall of the workpiece to fix the upper part of the workpiece.
[0009] In the aforementioned lathe fixture, the first fixing component further includes a first driving member, and the pressing member is connected to the output end of the first driving member. The first driving member is used to drive the pressing member to rotate.
[0010] In the aforementioned lathe fixture, the second fixing component further includes:
[0011] A support frame is mounted on the workbench;
[0012] The second driving member is disposed on the support frame, and the abutting member is disposed at the output end of the second driving member. The second driving member is used to drive the abutting member to move.
[0013] In one of the lathe fixtures described above, a positioning pin is also provided on the support base. The positioning pin can be inserted into the protrusion when the workpiece is placed on the support base, and is used to position the protrusion.
[0014] In the aforementioned lathe fixture, a first positioning block is further provided on the worktable. The first positioning block has a first arc-shaped structure. The first arc-shaped structure can be positioned opposite to the outer wall of the workpiece when the workpiece is placed on the support seat, thereby providing external positioning for the workpiece.
[0015] In the aforementioned lathe fixture, a second positioning block is further provided on the worktable. The second positioning block has a second arc-shaped structure and a protrusion provided on the second arc-shaped structure. The second arc-shaped structure can be positioned opposite to the outer wall of the workpiece when the workpiece is placed on the support seat. The protrusion can be inserted into the outer wall of the workpiece when the workpiece is placed on the support seat.
[0016] Compared with the prior art, the advantages of this utility model are as follows: by setting a first fixing component and a second fixing component on the worktable, the first fixing component has a rotatably set pressing component, and the second fixing component has a clamping component located above the pressing component; during operation, the workpiece is placed on the support base, the pressing component presses against the protrusion at the bottom of the workpiece under the drive of the first fixing component, and the clamping component abuts against the outer wall of the workpiece under the drive of the second fixing component, so that the bottom and top of the workpiece are fixed, ensuring the stability and reliability of the workpiece throughout the entire processing process. Even for workpieces with a long axial direction, this fixing method can effectively avoid the vibration and deformation of the workpiece due to the large overhang length during processing, ensuring the stability of the workpiece in all directions, reducing the vibration and deformation caused by the workpiece during processing, thereby significantly improving the processing accuracy of the workpiece. Attached Figure Description
[0017] Figure 1 This is a 3D view of the proposed solution;
[0018] Figure 2 yes Figure 1 Partial 3D structural diagram;
[0019] Figure 3 This is a 3D view of the hidden first and second fixing components in this solution;
[0020] Figure 4 This is a 3D view of the workpiece in this design.
[0021] In the figure, 1 is the worktable; 2 is the support base; 3 is the first fixing component; 4 is the pressing component; 5 is the second fixing component; 6 is the clamping component; 7 is the first driving component; 8 is the support frame; 9 is the second driving component; 10 is the positioning pin; 11 is the first positioning block; 12 is the first arc-shaped structure; 13 is the second positioning block; 14 is the second arc-shaped structure; 15 is the protrusion; 16 is the workpiece; and 17 is the protrusion. Detailed Implementation
[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0023] like Figures 1 to 4 As shown, this utility model discloses a lathe fixture for fixing a workpiece 16. The workpiece 16 has an outwardly extending protrusion 17 at its bottom. The fixture includes: a worktable 1 on which a support base 2 is provided to support the workpiece 16; a first fixing component 3 disposed on the side of the support base 2 and having a rotatably disposed pressing member 4, which movably abuts against the protrusion 17 to fix the bottom of the workpiece 16; and a second fixing component 5 disposed on the worktable 1 and having a clamping member 6 located above the pressing member 4. The projections of the clamping member 6 and the pressing member 4 along the axis of the workpiece 16 do not coincide. The clamping member 6 abuts against the outer side wall of the workpiece 16 to fix the upper part of the workpiece 16.
[0024] During operation, the workpiece 16 is first placed on the support base 2. Then, the first fixing component 3 drives the pressing component 4 to rotate, allowing the pressing component 4 to press against the protrusion 17 at the bottom of the workpiece 16, thus ensuring the stable fixation of the bottom of the workpiece 16. At the same time, the second fixing component 5 drives the abutting component 6 to move, causing the abutting component 6 to abut against the outer wall of the workpiece 16, thereby fixing the upper part of the workpiece 16. In this way, both the bottom and the top of the workpiece 16 are effectively fixed, ensuring the stability and reliability of the workpiece 16 throughout the entire processing process. Even for workpieces 16 with a long axial direction, this fixing method can effectively avoid vibration and deformation of the workpiece 16 due to its large overhang length during processing, thus significantly improving the processing accuracy of the workpiece 16. In addition, this fixing method also has a positive impact on the maintenance and service life of the machine tool. During the processing, since the workpiece 16 does not vibrate, the impact and wear on the machine tool components are greatly reduced. This not only reduces the maintenance frequency of the machine tool but also extends its service life, thereby saving maintenance costs and improving production efficiency for enterprises.
[0025] In order to drive the pressing member 4 to rotate, the first fixing component 3 also includes a first driving member 7. The pressing member 4 is connected to the output end of the first driving member 7. After the workpiece 16 is placed on the support base 2, the first driving member 7 is immediately activated, driving the pressing member 4 to rotate until the pressing member 4 presses on the protrusion 17 of the workpiece 16, thereby achieving effective fixation of the bottom of the workpiece 16. This process ensures the stability of the bottom of the workpiece 16 during processing and prevents processing errors caused by loosening of the bottom. The first driving member 7 can be a cylinder, a hydraulic cylinder or a motor.
[0026] Furthermore, the second fixing component 5 also includes: a support frame 8, which is disposed on the worktable 1; a second driving component 9, which is disposed on the support frame 8; and a clamping component 6 disposed at the output end of the second driving component 9. After the workpiece 16 is placed on the support seat 2, the second driving component 9 is activated, driving the clamping component 6 located above the pressing component 4 to move until the clamping component 6 abuts against the outside of the workpiece 16. In this way, the second fixing component 5 can efficiently and reliably fix the upper part of the workpiece 16, working in conjunction with the first fixing component 3 to ensure the stability and reliability of the workpiece 16 throughout the entire processing process. This dual fixing method not only improves the processing accuracy of the workpiece 16, but also reduces the vibration and deformation that may occur in the workpiece 16 during processing, thereby ensuring the high-quality processing of the workpiece 16. The second driving component 9 can be a cylinder, a hydraulic cylinder, or a motor.
[0027] To position the protrusion 17 on the workpiece 16, a positioning pin 10 is provided on the support base 2. The positioning pin 10 is fixed at a specific position on the support base 2, matching the shape and position of the protrusion 17 on the workpiece 16, ensuring that the workpiece 16 can be accurately inserted into the protrusion 17 when placed. The main function of the positioning pin 10 is to provide initial positioning when the workpiece 16 is placed, ensuring that the workpiece 16 is accurately positioned on the support base 2. This design not only improves the initial positioning accuracy of the workpiece 16, but also provides a guarantee for the stability of subsequent fixing and processing, thereby improving the overall processing quality and efficiency.
[0028] In order to provide shape positioning for workpiece 16, a first positioning block 11 is also provided on the worktable 1. The first positioning block 11 has a first arc-shaped structure 12. When workpiece 16 is placed on support 2, the first arc-shaped structure 12 is positioned opposite to the outer wall of workpiece 16. The shape of the first arc-shaped structure 12 matches the outer wall of workpiece 16, ensuring accurate positioning when workpiece 16 is placed, thereby providing accurate shape positioning for workpiece 16.
[0029] Furthermore, a second positioning block 13 is also provided on the worktable 1. The second positioning block 13 has a second arc-shaped structure 14 and a protrusion 15 provided on the second arc-shaped structure 14. When the workpiece 16 is placed on the support 2, the second arc-shaped structure 14 is positioned opposite to the outer wall of the workpiece 16, and the protrusion 15 is inserted into the outer wall of the workpiece 16. The shape of the second arc-shaped structure 14 matches the outer wall of the workpiece 16, ensuring accurate positioning when the workpiece 16 is placed. The protrusion 15 provides additional positioning points, ensuring that the workpiece 16 can be more firmly fixed when placed, reducing the movement of the workpiece 16 during the processing. This design not only provides additional positioning points, but also further improves the positioning accuracy and stability of the workpiece 16.
[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0031] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0034] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by the spirit of this utility model.
Claims
1. A lathe fixture for fixing a workpiece, wherein the bottom of the workpiece has an outwardly extending protrusion, characterized in that, The clamp includes: A workbench is provided with a support base, which is used to provide support for the workpiece; A first fixing component is disposed on the side of the support base and has a rotatably disposed pressing member that movably abuts against the protrusion for fixing the bottom of the workpiece. The second fixing component is disposed on the worktable and has a clamping member located above the pressing member. The projection of the clamping member along the axis of the workpiece does not coincide with that of the pressing member. The clamping member abuts against the outer side wall of the workpiece to fix the upper part of the workpiece.
2. The lathe fixture as described in claim 1, characterized in that, The first fixing component further includes a first driving member, and the pressing member is connected to the output end of the first driving member. The first driving member is used to drive the pressing member to rotate.
3. The lathe fixture as described in claim 1, characterized in that, The second fixing component also includes: A support frame is mounted on the workbench; The second driving member is disposed on the support frame, and the abutting member is disposed at the output end of the second driving member. The second driving member is used to drive the abutting member to move.
4. The lathe fixture as described in claim 1, characterized in that, The support base is also provided with a positioning pin, which can be inserted into the protrusion when the workpiece is placed on the support base, and is used to position the protrusion.
5. A lathe fixture as described in claim 1, characterized in that, The workbench is also provided with a first positioning block, which has a first arc-shaped structure. The first arc-shaped structure can be positioned opposite to the outer wall of the workpiece when the workpiece is placed on the support base, so as to provide shape positioning for the workpiece.
6. The lathe fixture as described in claim 1, characterized in that, The worktable is also provided with a second positioning block, which has a second arc-shaped structure and a protrusion on the second arc-shaped structure. The second arc-shaped structure can be positioned opposite to the outer wall of the workpiece when the workpiece is placed on the support seat, and the protrusion can be inserted into the outer wall of the workpiece when the workpiece is placed on the support seat.