Rotary table and machine tool
By designing a pressing mechanism for the rotary table, the problem of fixing the motor housing was solved, enabling stable clamping and high-precision machining, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional processing methods are difficult to effectively fix the motor housing, resulting in problems such as multiple clamping operations, large cumulative accuracy errors, and high production costs.
Design a rotary worktable including a mounting body and multiple pressing mechanisms. The pressure plates are supported by support members, and the locking members apply force to press the pressure plates onto the workpiece to be processed. The positions of the multiple pressure plates are adjusted by combining sliding members and sliding grooves.
This method achieves stable fixation of the motor housing, reduces the number of clamping operations, improves machining accuracy, and lowers production costs.
Smart Images
Figure CN121776901A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of machine tool technology, and in particular to a rotary table and machine tool. Background Technology
[0002] The motor housing is a core component of the longitudinally mounted front-drive electromechanical coupler system. It has a large internal cavity depth and is a thin-walled, easily deformable structure. When machining the motor housing using traditional methods, multiple machines are required, resulting in numerous clamping operations, large cumulative accuracy errors, and high production costs.
[0003] Based on this, it is possible to consider using milling-turning composite machine tools, which have the advantages of multi-process integrated machining, for the machining of motor housings. However, due to the special structure of motor housings, the tooling of milling-turning composite machine tools cannot be adapted to the motor housings. Therefore, a structure that can meet the positioning requirements of motor housings is needed. Summary of the Invention
[0004] In view of this, this application provides a rotary table and machine tool to meet the requirements for fixing the motor housing.
[0005] According to one aspect of this application, a rotary worktable is provided, the rotary worktable including a mounting body and a plurality of pressing mechanisms, the mounting body being used to support a workpiece to be processed, the plurality of pressing mechanisms being arranged at intervals, each pressing mechanism including a support member, a pressure plate and a locking member, the support member being placed on the mounting body and supporting the pressure plate, the locking member being able to apply force to the pressure plate so that a portion of the pressure plate is pressed onto the workpiece to be processed.
[0006] Preferably, the pressing mechanism includes an extension member that extends along a first direction and is connected to the mounting body; The pressure plate has a connecting hole that passes through the pressure plate. The extension passes through the connecting hole. The locking member is threadedly connected to the extension. The locking member can abut against the side of the pressure plate opposite to the mounting body in the first direction.
[0007] Preferably, the length of the connecting hole is greater than the outer diameter of the extension.
[0008] Preferably, the pressing mechanism further includes a sliding member, which is connected to the extension member; The mounting body has multiple sliding grooves that extend along a second direction. The multiple sliding grooves are arranged at intervals. The sliding member is disposed in one of the sliding grooves and can slide within the sliding groove. The second direction intersects the first direction.
[0009] Preferably, the sliding groove includes a first groove and a second groove, the end of the second groove facing away from the pressure plate in the first direction is connected to the first groove, the size of the first groove in the third direction is larger than the size of the second groove in the third direction, and the third direction intersects the plane determined by the first direction and the second direction; The slider includes a first sliding part and a second sliding part connected to each other. The first sliding part is larger in the third direction than the second sliding part in the third direction. The first sliding part is disposed in the first groove and the second sliding part is disposed in the second groove.
[0010] Preferably, the rotary table includes a clamping member, and the mounting body has a mounting groove that extends through the mounting body along the first direction; The clamping member is located within the placement groove, and both ends of the clamping member in the second direction are respectively connected to the groove wall of the placement groove.
[0011] Preferably, the rotary table further includes two abutment posts, which protrude from opposite sides of the mounting body.
[0012] According to another aspect of this application, a machine tool is provided, the machine tool including the rotary table described above.
[0013] Preferably, the machine tool further includes a tool assembly, which includes a fixing block, a connector, a tool, and a fastener. The connector is connected to the end of the fixing block, the fixing block has a placement groove, a portion of the tool is located in the placement groove, the fastener is connected to the fixing block, and the end of the fastener extends into the placement groove and abuts against the tool.
[0014] Preferably, there are multiple placement slots, and each placement slot is provided with a corresponding cutting tool.
[0015] The rotary table of this application includes a mounting body and multiple pressing mechanisms. The mounting body supports the workpiece to be processed. The multiple pressing mechanisms are arranged at intervals. Each pressing mechanism includes a support member, a pressure plate, and a locking member. The support member is placed on the mounting body and supports the pressure plate, with a portion of the pressure plate protruding relative to the support member. The locking member applies force to the pressure plate, causing a portion of the pressure plate to press against the workpiece to be processed. During processing, the workpiece to be processed is placed on the mounting body, then the support member is placed on the mounting body, the pressure plate is supported by the support member, and the locking member applies force to the pressure plate, causing a portion of the pressure plate to press against the workpiece to be processed. In this way, the multiple pressure plates in the multiple pressing mechanisms cooperate to fix the workpiece to be processed, satisfying the need for fixing the workpiece. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A three-dimensional structural diagram of the rotary table is shown; Figure 2 Show Figure 1 Enlarged view of section A; Figure 3 A schematic diagram of the planar structure of the rotary table is shown; Figure 4 Show Figure 3 A cross-sectional view obtained by cutting the rotary table along B-B'; Figure 5 A three-dimensional structural schematic diagram of the tool assembly is shown; Figure 6 An exploded view of the tool assembly is shown.
[0018] Icons: 1-Mounting body; 11-Sliding groove; 111-First groove; 112-Second groove; 12-Placement groove; 2-Pressure mechanism; 21-Supporting component; 22-Pressure plate; 221-Connecting hole; 23-Locking component; 24-Extension component; 25-Sliding component; 251-First sliding part; 252-Second sliding part; 3-Abutting post; 4-Clamping component; 5-Fixing block; 51-Placement groove; 52-Fastening hole; 6-Connector; 7-Cut tool; 8-Fastener; L1-First direction; L2-Second direction; L3-Third direction. Detailed Implementation
[0019] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.
[0020] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.
[0021] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.
[0022] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0023] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.
[0024] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.
[0025] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0026] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0027] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.
[0028] The following will combine Figures 1 to 4 Describe the rotary table, combining Figure 5 and Figure 6 Describe the tool assembly in the machine tool. Figures 1 to 4 In the process, the first direction L1 intersects with the second direction L2, and the third direction L3 intersects with the plane determined by the first direction L1 and the second direction L2. The intersection is preferably perpendicular. The rotary table will be described below with reference to the case where the first direction L1, the second direction L2 and the third direction L3 are perpendicular to each other.
[0029] According to one aspect of this application, a rotary worktable is provided, such as Figures 1 to 4 As shown, the rotary table includes a mounting body 1 and multiple pressing mechanisms 2. The mounting body 1 supports the workpiece to be processed. The multiple pressing mechanisms 2 are arranged at intervals. Each pressing mechanism 2 includes a support member 21, a pressure plate 22, and a locking member 23. The support member 21 is placed on the mounting body 1 and supports the pressure plate 22. The locking member 23 applies force to the pressure plate 22, causing a portion of the pressure plate 22 to be pressed onto the workpiece to be processed. When processing the motor housing, the workpiece to be processed is placed on the mounting body 1, and then the support member 21 is placed on the mounting body 1. The pressure plate 22 is supported by the support member 21, and the locking member 23 applies force to the pressure plate 22, causing a portion of the pressure plate 22 to be pressed onto the workpiece to be processed. In this way, the multiple pressure plates 22 in the multiple pressing mechanisms 2 cooperate to fix the workpiece to be processed, thus meeting the requirement for fixing the workpiece to be processed.
[0030] In the embodiments of this application, such as Figure 1 and Figure 2As shown, the mounting body 1 has a cuboid structure, and the pressing mechanism 2 includes an extension 24 that extends along a first direction L1 and is connected to the mounting body 1. The pressure plate 22 has a connecting hole 221 that penetrates the pressure plate 22 along the first direction L1, and the extension 24 passes through the connecting hole 221. The outer wall of the extension 24 has threads, and a locking member 23 is threadedly connected to the extension 24 and can move along the extension 24. Thus, the locking member 23 can be screwed on to move it to abut against the pressure plate 22, at which point the locking member 23 can apply force to the pressure plate 22, thereby pressing the workpiece onto the mounting body 1.
[0031] Preferably, the extension 24 is a screw and the locking member 23 is a nut.
[0032] Furthermore, the length of the connecting hole 221 is greater than the outer diameter of the extension 24, so that the extension 24 can move relative to the pressure plate 22. This allows the operator to adjust the position of the pressure plate 22 based on the position where the pressure plate 22 presses against the workpiece, so as to ensure that the pressure plate 22 can press against the workpiece.
[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the pressing mechanism 2 also includes a sliding member 25. The extension member 24 can be connected to the sliding member 25 by means of threaded connection or welding. The mounting body 1 has multiple sliding grooves 11, which extend along the second direction L2. The multiple sliding grooves 11 are arranged at intervals. The sliding member 25 is disposed in one sliding groove 11 and can slide within the sliding groove 11. When fixing the workpiece, the sliding member 25 can be placed in the appropriate sliding groove 11 based on the shape of the workpiece, and then slid to the appropriate position. In this way, the positions of the multiple pressing mechanisms 2 can be adjusted according to the model of the workpiece to meet the fixing requirements of different models of workpieces.
[0034] Preferably, such as Figure 4As shown, the sliding groove 11 includes a first groove portion 111 and a second groove portion 112. The end of the second groove portion 112 facing away from the pressure plate 22 in the first direction L1 is connected to the first groove portion 111. The dimension of the first groove portion 111 in the third direction L3 is larger than the dimension of the second groove portion 112 in the third direction L3. The sliding member 25 includes a first sliding portion 251 and a second sliding portion 252 connected together. The dimension of the first sliding portion 251 in the third direction L3 is larger than the dimension of the second sliding portion 252 in the third direction L3, and the dimension of the first sliding portion 251 in the third direction L3 is larger than the dimension of the second groove portion 112 in the third direction L3. The first sliding portion 251 is disposed within the first groove portion 111, and the second sliding portion 252 is disposed within the second groove portion 112. By configuring the sliding groove 11 and the sliding member 25 in the above manner, the tilting of the sliding member 25 can be prevented, thereby improving the stability of the workpiece being processed.
[0035] Alternatively, the entire slider 25 can be integrally molded.
[0036] Furthermore, the support member 21 has a cylindrical structure, and when the contact position between the pressure plate 22 and the workpiece is at different heights, the support member 21 of different heights can be replaced based on the required height. When the sliding member 25 and the extension member 24 move to different positions, the support member 21 can be placed in different positions to meet the support requirements of the pressure plate 22.
[0037] Alternatively, the fixing method of the extension 24 is not limited to this. For example, the pressing mechanism 2 may not be equipped with the sliding member 25. In this case, the mounting body 1 may have multiple threaded holes, which are arranged at intervals. The extension 24 can be installed in different threaded holes as needed to achieve the connection between the extension 24 and the mounting body 1.
[0038] like Figure 1 As shown, the rotary table also includes two abutment posts 3, which protrude from opposite sides of the mounting body 1 in the second direction L2. The two abutment posts 3 abut against the two spindles in the machine tool, thereby mounting the rotary table and the workpiece to be processed on the machine tool.
[0039] Furthermore, the rotary table includes a clamping member 4, which is cylindrical. The mounting body 1 has a mounting groove 12 that extends through the mounting body 1 along a first direction L1. The clamping member 4 is located within the mounting groove 12, and both ends of the clamping member 4 in the second direction L2 are connected to the groove wall of the mounting groove 12. When the rotary table is installed on a machine tool, the machine tool's center rest can clamp the clamping member 4 to improve the stability of the rotary table installation.
[0040] Optionally, the clamping component 4, the mounting body 1, and the abutment post 3 can be integrally formed.
[0041] In addition, the mounting groove 12 divides the mounting body 1 into two parts, both of which can be used to mount the workpiece to be processed. Both parts are provided with sliding grooves 11, and multiple sliding grooves 11 on each part are arranged at intervals along the third direction L3.
[0042] According to another aspect of this application, a machine tool is provided, which includes the aforementioned rotary table and has the same technical effects as the aforementioned rotary table, which will not be described in detail here.
[0043] Preferably, the machine tool is a turning-milling composite machine tool.
[0044] Furthermore, such as Figure 5 and Figure 6 As shown, the machine tool also includes a tool assembly, which comprises a fixing block 5, a connector 6, a tool 7, and a fastener 8. The connector 6 is connected to the end of the fixing block 5. The fixing block 5 has a placement groove 51, in which part of the tool 7 is located, and the other part protrudes from the placement groove 51. The fixing block 5 also has a fastening hole 52, the wall of which is threaded. The fastening hole 52 communicates with the placement groove 51. The fastener 8 passes through the fastening hole 52 and abuts against the tool 7 in the placement groove 51, thereby fixing the tool 7. Thus, by tightening the fastener 8, the tool 7 can be locked and released, improving the convenience of tool 7 replacement.
[0045] Preferably, fastener 8 is a bolt.
[0046] Alternatively, the connector 6 and the fixing block 5 can be integrally formed, or they can be fixed by bolts or welding. The form of the connector 6 needs to be compatible with the machine tool spindle.
[0047] Furthermore, there are multiple placement slots 51, and each placement slot 51 is correspondingly provided with a cutting tool 7. In this way, the fixing block 5 can clamp multiple cutting tools 7. The types of cutting tools 7 in different placement slots 51 can be the same or different. Preferably, there are two placement slots 51, and the two cutting tools 7 in the two placement slots 51 can be a finishing tool and a roughing tool, respectively.
[0048] Optionally, based on the form of the rotary table and the working requirements of the workpiece, a dedicated post-processing program can be developed. This program, based on the toolpath generated by CAM software, performs coordinate transformation and compensation according to the actual rotation angle and positioning accuracy error of the rotary table, achieving precise matching between the toolpath and the rotary table movement, ensuring the accuracy of machining trajectories for complex features such as deep cavities and thin walls. The process route optimization can be optimized to a "roughing-aging-finishing" flow, eliminating material internal stress and reducing thin-wall deformation. Simultaneously, utilizing the single-clamping characteristic of the rotary table, it ensures that the dimensional and positional tolerances, such as bearing coaxiality, are consistent with the rotary table's rotational accuracy, thereby improving the clamping accuracy of the workpiece. Simultaneously, the actual runout value of the tool assembly is predicted, and compensation parameters are set in the programming to counteract the impact of tool assembly runout on machining accuracy. Furthermore, online measurement technology is used to monitor key dimensions such as the diameter of deep cavities and dimensional and positional tolerances in real time, and the post-processing program automatically compensates for machining deviations.
[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A rotary worktable, characterized in that, The rotary worktable includes a mounting body and multiple pressing mechanisms. The mounting body is used to support the workpiece to be processed. The multiple pressing mechanisms are arranged at intervals. Each pressing mechanism includes a support member, a pressure plate, and a locking member. The support member is placed on the mounting body and supports the pressure plate. The locking member can apply force to the pressure plate so that part of the pressure plate is pressed onto the workpiece to be processed.
2. The rotary table according to claim 1, characterized in that, The pressing mechanism includes an extension member that extends along a first direction and is connected to the mounting body; The pressure plate has a connecting hole that passes through the pressure plate. The extension passes through the connecting hole. The locking member is threadedly connected to the extension. The locking member can abut against the side of the pressure plate opposite to the mounting body in the first direction.
3. The rotary table according to claim 2, characterized in that, The length of the connecting hole is greater than the outer diameter of the extension.
4. The rotary table according to claim 2, characterized in that, The pressing mechanism further includes a sliding member, which is connected to the extension member; The mounting body has multiple sliding grooves that extend along a second direction. The multiple sliding grooves are arranged at intervals. The sliding member is disposed in one of the sliding grooves and can slide within the sliding groove. The second direction intersects the first direction.
5. The rotary table according to claim 4, characterized in that, The sliding groove includes a first groove and a second groove. The end of the second groove facing away from the pressure plate in the first direction is connected to the first groove. The size of the first groove in the third direction is larger than the size of the second groove in the third direction. The third direction intersects the plane determined by the first direction and the second direction. The slider includes a first sliding part and a second sliding part connected to each other. The first sliding part is larger in the third direction than the second sliding part in the third direction. The first sliding part is disposed in the first groove and the second sliding part is disposed in the second groove.
6. The rotary table according to claim 4, characterized in that, The rotary table includes a clamping component, and the mounting body has a mounting groove that extends through the mounting body along the first direction. The clamping member is located within the placement groove, and both ends of the clamping member in the second direction are respectively connected to the groove wall of the placement groove.
7. The rotary table according to any one of claims 1-6, characterized in that, The rotary table also includes two abutment posts, which protrude from opposite sides of the mounting body.
8. A machine tool, characterized in that, The machine tool includes the rotary table as described in any one of claims 1-7.
9. The machine tool according to claim 8, characterized in that, The machine tool also includes a tool assembly, which includes a fixing block, a connector, a tool, and a fastener. The connector is connected to the end of the fixing block. The fixing block has a placement groove, and a portion of the tool is located in the placement groove. The fastener is connected to the fixing block, and the end of the fastener extends into the placement groove and abuts against the tool.
10. The machine tool according to claim 9, characterized in that, There are multiple placement slots, and each placement slot is correspondingly provided with the cutting tool.