One-time turning forming lathe
By designing chuck fixtures and cutting tools in different directions on a turning lathe, the problem of disassembling and re-clamping the workpiece was solved, enabling efficient machining of both ends of the workpiece in one clamping operation, thus improving machining accuracy and efficiency.
Patent Information
- Application Number
- CN202520558398.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In current turning processes, the workpiece needs to be disassembled, turned over, and re-clamped, which leads to deviations in machining position, affects dimensional accuracy, and results in low efficiency.
Design a one-time turning lathe for forming, which uses a chuck and fixture to fix the workpiece, and uses two tools in different directions to machine the left and right end faces of the workpiece respectively. The machining is completed by changing the tools without disassembling the workpiece.
This technology enables one-time clamping of both ends of the workpiece, improving machining accuracy and efficiency, reducing clamping time, and increasing production efficiency.
Smart Images
Figure CN223932630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a one-time turning forming lathe. Background Technology
[0002] Machining refers to the process of changing the shape, size, or properties of a workpiece using a mechanical device. It can be divided into cutting machining and pressure machining according to the difference in machining methods. Turning is a type of cutting machining. The main machining method of turning is to perform precision machining by rotating the workpiece at high speed and using the lateral and longitudinal movement of the cutting tool. The fixing device used to fix the workpiece during turning is called a fixture.
[0003] Currently, during turning operations, the fixtures used cannot rotate or turn the workpiece or cutting tool. When one end of the workpiece is finished and the other end needs to be machined, it must be removed from the fixture and then re-clamped to machine the other end. Re-clamping makes it difficult to ensure that the relative position of the workpiece and the machine tool coordinate axis is completely consistent with the previous clamping. This will cause the machining position of the workpiece in the second clamping state to deviate, thus affecting dimensional accuracy. Re-disassembly and re-assembly also take longer, reducing the overall machining efficiency and hindering production activities.
[0004] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content
[0005] The purpose of this utility model is to propose a one-time turning and forming lathe to solve the technical problem in the prior art that when machining the two ends of a workpiece, it is necessary to disassemble and reinstall it after machining one end.
[0006] Therefore, this utility model proposes a one-time turning forming lathe.
[0007] Preferably, the present invention may also have the following technical features:
[0008] A one-time turning forming lathe is used to machine the left and right end faces of a workpiece with a first through hole in the middle, wherein the left and right end faces are located at the left and right ends of the first through hole, respectively, and includes:
[0009] A chuck, which is mounted on the spindle of a lathe, is provided with several jaws;
[0010] The fixture is L-shaped, consisting of a first mounting plate and a second mounting plate. The first mounting plate is in contact with the end face of the chuck, and the jaws abut against the first mounting plate to fix the fixture to the end face of the chuck. The second mounting plate is provided with a plurality of third through holes corresponding to the positions of the second through holes on the workpiece to be processed. A connector passes through the second through holes and the third through holes to fix the workpiece to be processed on the second mounting plate, and the left end face of the workpiece to be processed is at a certain distance from the first mounting plate.
[0011] The tool post is mounted on the slide of the lathe and is positioned opposite the chuck.
[0012] A tool mounting shaft has its right end fixed to the tool holder, and a tool mounting hole is radially provided near the left end of the tool mounting shaft.
[0013] The cutting tool includes a first cutting tool and a second cutting tool disposed in the cutting tool mounting hole and fixed to the cutting tool mounting shaft by a connector, wherein the cutting edges of the first cutting tool and the second cutting tool are respectively disposed on the left and right sides of the cutting tool handle.
[0014] Preferably, the clamp has several cutouts.
[0015] Preferably, a first cutout is provided on the first mounting plate at the position corresponding to the spindle of the lathe.
[0016] Preferably, a second cutout is provided on the second mounting plate.
[0017] Preferably, four claws are provided, which are arranged symmetrically in pairs.
[0018] Preferably, it further includes reinforcing plates disposed on both sides of the first mounting plate and the second mounting plate.
[0019] Preferably, the device further includes a first flange disposed at the second through hole, the neck of the first flange engaging with the second through hole and the third through hole, a fourth through hole being disposed in the middle of the first flange, the connector passing through the second through hole on the workpiece to be processed and the third through hole on the second mounting plate, and a nut engaging with the connector to install the workpiece to be processed onto the fixture.
[0020] Preferably, a plurality of first counterweights are provided on the end face of the chuck, away from the second mounting plate.
[0021] Preferably, a clamping hole is provided in the middle of the chuck, a second flange is provided at the clamping hole, the neck of the second flange mates with the clamping hole, and the fixture is provided on the outer end face of the second flange.
[0022] Preferably, a second counterweight is provided at a location on the second flange away from the second mounting plate.
[0023] The beneficial effects of this utility model compared with the prior art include: the one-time turning forming lathe of this utility model is equipped with a fixture on the end face of the lathe chuck, the workpiece to be processed is mounted on the fixture, and the left end face of the workpiece to be processed is at a certain distance from the first mounting plate of the fixture. Two cutting tools with different cutting directions, the first tool and the second tool, are used to process the right end face and the left end face of the workpiece to be processed, respectively. The end faces are processed twice, without the need to turn the workpiece to be processed. Only different tools need to be changed to process the left and right end faces of the workpiece to be processed separately, which can save clamping time and improve production efficiency. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of this utility model.
[0025] Figure 2 This is a schematic diagram of the fixture structure according to a specific embodiment of this utility model.
[0026] Figure 3 This is a schematic diagram of the tool mounting shaft and tool structure according to a specific embodiment of this utility model.
[0027] Figure 4 This is a schematic diagram of the clamp structure according to the second specific embodiment of this utility model.
[0028] Explanation of reference numerals in the attached drawings: 01-Workpiece to be processed; 011-First through hole; 012-Second through hole; 02-Chuck; 021-Claw; 03-Clamp; 031-First mounting plate; 0311-First cutout; 032-Second mounting plate; 0321-Third through hole; 0322-Second cutout; 033-Reinforcing plate; 034-First flange; 0341-Fourth through hole; 04-Tool holder; 05-Tool mounting shaft; 051-Tool mounting hole; 06-First tool; 061-First cutting edge; 062-First tool holder; 07-Second tool; 071-Second cutting edge; 072-Second tool holder; 08-Slide; 09-First counterweight; 10-Second flange; 11-Second counterweight. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.
[0030] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.
[0031] Example 1:
[0032] A one-time turning forming lathe, such as Figures 1-3 As shown, this lathe is used to machine the left and right end faces of a workpiece 01 with a large size and a first through hole 011 in the middle. The left and right end faces are located at the left and right ends of the first through hole 011, respectively. This embodiment takes the machining of a motor housing as an example to introduce the specific structure of the lathe, including a chuck 02, a fixture 03, a tool post 04, a tool mounting shaft 05, and a cutting tool. The chuck 02 is mounted on the spindle of the lathe and can rotate with the spindle. The center of the chuck 02 coincides with the axis of the spindle, and the chuck 02 is provided with several jaws 021. The fixture 03 is L-shaped, consisting of a first mounting plate 031 and a second mounting plate 032. The first mounting plate 031 is in contact with the end face of the chuck 02, and the jaws 021 abut against the first mounting plate 031 to fix the fixture 03 to the end face of the chuck 02. The second mounting plate 032 is provided with several third through holes 0321 corresponding to the positions of the second through holes 012 on the workpiece 01 to be processed. A connector passes through the second through holes 012 and the third through holes 0321 to fix the workpiece 01 to be processed on the second mounting plate 032, so that the left end face of the workpiece 01 to be processed is at a certain distance from the first mounting plate 031. In actual production, the workpiece 01 to be processed is installed on the fixture 03 and placed vertically. The lower end of the workpiece 01 to be processed (that is, the left end after the workpiece 01 to be processed is installed on the lathe) is at a certain distance from the first mounting plate 031 to provide sufficient space for the cutting tool when processing the left end face. The tool post 04 is mounted on the slide 08 of the lathe, opposite to the chuck 02. Driven by the slide 08, the tool post 04 can move longitudinally (parallel to the lathe spindle axis) and laterally (perpendicular to the lathe spindle axis). Before machining begins, the position of the tool post 04 can be calibrated by moving it. After calibration, the lateral position of the tool post 04 is fixed, and it only moves longitudinally during machining. The right end of the tool mounting shaft 05 is fixed to the tool post 04, and a tool mounting hole 051 is radially provided near the left end of the tool mounting shaft 05. The tool... The device includes a first cutting tool 06 and a second cutting tool 07. The first cutting tool 06 and the second cutting tool 07 are disposed in the cutting tool mounting hole 051 and fixed to the cutting tool mounting shaft 05 by a connector. The first cutting edge 061 of the first cutting tool 06 and the second cutting edge 071 of the second cutting tool 07 are respectively disposed on the left and right sides of the first tool holder 062 and the second tool holder 072. It should be noted that the first cutting tool 06 and the second cutting tool 07 are not fixed to the cutting tool mounting shaft 05 at the same time. In actual production, the first cutting tool 06 or the second cutting tool 07 is selected to be installed according to the end face to be machined.
[0033] In actual production, the right end face of the motor housing can be machined first. The first tool 06 is installed on the tool mounting shaft 05, and the position of the tool holder 04 is adjusted so that the first tool 06 is close to the right end face of the motor housing (that is, the first cutting edge 061 on the left side of the first tool holder 062 of the first tool 06 is close to the right end face of the motor housing). After calibrating the position, the lathe spindle is started, and the chuck 02 drives the fixture 03 and the motor housing to rotate. During the machining process, the tool holder 04 continuously performs longitudinal feed motion, and the cutting edge 061 of the first tool 06 continuously cuts the right end face of the motor housing until the cutting requirements are met. Then, the first tool 06 is removed. The second cutting tool 07 is mounted on the tool mounting shaft 05. The position of the tool holder 04 is adjusted so that the tool mounting shaft 05 passes through the first through hole 011. The second cutting edge 071 of the second cutting tool 07 is close to the left end face of the motor housing (that is, the second cutting edge 071 on the right side of the second tool holder 072 of the second cutting tool 07 is close to the left end face of the motor housing). After calibrating the position, the lathe spindle is started. The chuck 02 drives the fixture 03 and the motor housing to rotate. During the machining process, the tool holder 04 continuously performs longitudinal feed motion, and the second cutting edge 071 of the second cutting tool 07 continuously cuts the left end face of the motor housing until the cutting requirements are met. The above lathe realizes that the workpiece 01 to be machined is clamped once. By switching the first cutting tool 06 and the second cutting tool 07 with cutting edges in different directions, the two end faces of the workpiece 01 to be machined can be completed. There is no need to clamp the workpiece 01 to be machined multiple times. Only the cutting tools need to be changed to machine the left and right end faces of the workpiece to be machined, saving time and effort. Of course, when switching to other suitable cutting tools, the lathe can also be used to machine the inner hole of the workpiece.
[0034] In actual production, when machining a large workpiece 01, the fixture 03 needs to have a certain rigidity, which requires it to be made of steel plate of a certain thickness. However, to facilitate hoisting and reduce the load on the lathe spindle, several cutouts can be provided on the fixture 03. In some examples of this embodiment, such as... Figure 2 As shown, a first hollow section 0311 is provided on the first mounting plate 031 at the position corresponding to the lathe spindle to reduce the load on the lathe spindle. The shape and size of the first hollow section 0311 are not limited, as long as the first mounting plate 031 does not interfere with the tool during rotary machining. When the motor housing is too far from the first mounting plate 031, an imbalance may occur during rotary machining, causing the workpiece to wobble and affecting machining accuracy. The first hollow section 0311 can provide some rotation space for the tool, and the motor housing does not need to be too far from the first mounting plate 031, thus improving the stability and machining accuracy of the lathe. In other examples of this embodiment, such as... Figure 2 As shown, a second cutout 0322 can also be provided on the second mounting plate 032. Specifically, the second cutout 0322 is a square cutout, and the bottom surface of the square cutout is close to the first mounting plate 031. The square cutout can reduce the offset weight. Of course, in actual production, such as Figure 2As shown, reinforcing plates 033 can also be provided on both sides of the first mounting plate 031 and the second mounting plate 032 to improve the rigidity of the clamp 03.
[0035] In other examples of this embodiment, in order to improve the stability of fixture 03, such as Figure 1 As shown, four claws 021 can also be provided, with the claws 021 arranged symmetrically in pairs. One pair abuts against the left and right sides of the first mounting plate 031 (or reinforcing plate), and the other pair is engaged with the front and rear sides of the first mounting plate 031. Other examples include... Figure 2 As shown, a first flange 034 can also be provided at the third through hole 0321, and the neck of the first flange 034 is connected to the second through hole 012 (to be explained here). Figure 2 The workpiece to be processed is not shown. Its second through hole matches the third through hole of the second mounting plate, so the position of the second through hole is only shown in brackets in the figure for easy understanding. The third through hole 0321 is engaged. A fourth through hole 0341 is provided in the middle of the first flange 034. The connector passes through the fourth through hole 0341 and is engaged with the connector by a nut to install the workpiece to be processed onto the fixture 03. Specifically, the fixture can be placed vertically first, and then the workpiece to be processed can be installed, and the second through hole 012 of the workpiece to be processed can be matched with the third through hole 0321 of the second mounting plate 032. Then the first flange 034 is installed, and the connector passes through the fourth through hole 0341 on the first flange 034. Finally, the nut is engaged with the connector. The first flange 034 itself is engaged with the surface of the workpiece to be processed. The neck of the first flange 034 is engaged with the second through hole 012 and the third through hole 0321, so that the workpiece to be processed is firmly installed.
[0036] In other examples of this embodiment, to avoid imbalance during rotary machining, such as... Figure 1 As shown, several first counterweights 09 can also be provided on the end face of the chuck 02, away from the second mounting plate 032.
[0037] Example 2:
[0038] A one-time turning forming lathe, such as Figure 1 , 3As shown in Figure 4, this lathe is used to machine the left and right end faces of a workpiece 01 with a first through hole in the middle. The left and right end faces are located at the left and right ends of the first through hole 011, respectively. This embodiment takes the machining of a motor housing as an example to introduce the specific structure of the lathe, including a chuck 02, a fixture 03, a tool post 04, a tool mounting shaft 05, a first tool 06, and a second tool 07. Commercially available lathes usually have a clamping hole (not shown in the figure) in the middle of the chuck 02. The only difference between this embodiment and Embodiment 1 is that a second flange 10 is provided at the clamping hole of the chuck 02. The neck of the second flange 10 mates with the clamping hole, and the fixture is provided on the outer end face of the second flange 10. In some examples of this embodiment, a second counterweight 11 can be provided on the second flange 10 away from the second mounting plate 032 to keep the fixture balanced during rotational machining.
[0039] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more specific implementations.
[0040] Although exemplary embodiments of the present invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the present invention.
Claims
1. A one-time turning forming lathe for machining the left and right end faces of a workpiece having a first through hole in the middle, wherein the left and right end faces are located at the left and right ends of the first through hole, respectively, characterized in that, include: A chuck, which is mounted on the spindle of a lathe, is provided with several jaws; The fixture is L-shaped, consisting of a first mounting plate and a second mounting plate. The first mounting plate is in contact with the end face of the chuck, and the jaws abut against the first mounting plate to fix the fixture to the end face of the chuck. The second mounting plate is provided with a plurality of third through holes corresponding to the positions of the second through holes on the workpiece to be processed. A connector passes through the second through holes and the third through holes to fix the workpiece to be processed on the second mounting plate, and the left end face of the workpiece to be processed is at a certain distance from the first mounting plate. The tool post is mounted on the slide of the lathe and is positioned opposite the chuck. A tool mounting shaft has its right end fixed to the tool holder, and a tool mounting hole is radially provided near the left end of the tool mounting shaft. The cutting tool includes a first cutting tool and a second cutting tool disposed in the cutting tool mounting hole and fixed to the cutting tool mounting shaft by a connector, wherein the cutting edges of the first cutting tool and the second cutting tool are respectively disposed on the left and right sides of the cutting tool handle.
2. The one-time turning forming lathe according to claim 1, characterized in that: Several cutouts are provided on the fixture.
3. The one-time turning forming lathe according to claim 2, characterized in that: A first cutout is provided on the first mounting plate at the position corresponding to the spindle of the lathe.
4. The one-time turning forming lathe according to claim 2, characterized in that: A second cutout is provided on the second mounting plate.
5. The one-time turning forming lathe according to claim 1, characterized in that: The four jaws are arranged symmetrically in pairs.
6. The one-time turning forming lathe according to claim 1, characterized in that: It also includes reinforcing plates disposed on both sides of the first mounting plate and the second mounting plate.
7. The one-time turning forming lathe according to claim 1, characterized in that: It also includes a first flange disposed at the second through hole, the neck of the first flange engaging with the second through hole and the third through hole, a fourth through hole disposed in the middle of the first flange, a connector passing through the second through hole on the workpiece to be processed and the third through hole on the second mounting plate, and a nut engaging with the connector to install the workpiece to be processed onto the fixture.
8. The one-time turning forming lathe according to claim 1, characterized in that: Several first counterweights are disposed on the end face of the chuck, away from the second mounting plate.
9. The one-time turning forming lathe according to claim 1, characterized in that: A clamping hole is provided in the middle of the chuck, and a second flange is provided at the clamping hole. The neck of the second flange mates with the clamping hole, and the fixture is provided on the outer end face of the second flange.
10. The one-time turning forming lathe according to claim 9, characterized in that: A second counterweight is installed at a location on the second flange away from the second mounting plate.