Motor end cover machining fixing tool
By designing a motor end cover fixing fixture that includes a base plate, fixing components, positioning bosses, and bolts, the problem of difficult precise positioning by traditional fixtures is solved, and efficient processing of motor end covers is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NIPPON PAINT CHANGZHOU
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional fixtures for machining motor end caps cannot accurately guarantee the position of the machining coordinate system, leading to difficulties in aligning holes, requiring cumbersome tool setting operations, and affecting machining efficiency.
Design a fixture including a base plate, a fixing component, a positioning boss, bolts, and a positioning block. The first positioning boss provides initial radial positioning, the second positioning boss provides support and secondary limiting, the bolts pass through the pivot hole and are threaded to the first positioning boss, and the positioning block clamps the connecting part to achieve axial compression and avoid tool setting operations.
It achieves precise positioning of the motor end cover, and the machining coordinate system is consistent with the tooling reference system. No tool setting operation is required, and machining can be started directly, which improves machining efficiency.
Smart Images
Figure CN224347402U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fixed tooling technology, specifically relating to a fixed tooling for processing motor end caps. Background Technology
[0002] During the production of the motor end cover, holes need to be machined in the connecting part to ensure a secure connection between the motor end cover and the motor housing.
[0003] Traditional motor end cover machining fixtures often use a three-jaw chuck for clamping and fastening. After the three-jaw chuck is clamped, due to the limitations of its clamping principle, it is difficult to accurately guarantee the position of the end cover in the machining coordinate system. In order to prevent the hole position from being incorrect, a tool setting operation must be performed. This process is not only cumbersome, but also consumes a lot of time.
[0004] Therefore, in order to solve the above problems, it is necessary to design a fixed tooling for machining motor end caps. Utility Model Content
[0005] The purpose of this utility model is to provide a fixing fixture for machining motor end caps, so as to solve the technical problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides a fixing fixture for machining motor end caps, comprising:
[0007] The base plate has several fixing components on its top; among them
[0008] The fixing assembly includes: a first positioning boss bolted to the base plate, a second positioning boss disposed on top of the first positioning boss, and bolts; and
[0009] The bolt is adapted to pass through the motor end cover, through the second positioning boss, and then be bolted to the first positioning boss to fix the motor end cover.
[0010] Several pairs of positioning blocks are bolted to the base plate and are located between two adjacent fixed components, which are suitable for positioning the connection part of the motor end cover.
[0011] Furthermore, a threaded hole is provided in the middle of the first positioning boss;
[0012] The second positioning boss has a first through hole in its middle; wherein
[0013] The bolt passes through the motor end cover and the second positioning boss and connects to the threaded hole to fix the motor end cover.
[0014] Furthermore, the fixing assembly also includes: a gasket located above the second positioning boss; wherein
[0015] The bolt is adapted to pass through the washer, the motor end cover, and the second positioning boss before connecting to the threaded hole.
[0016] Furthermore, the fixing assembly also includes: a rubber washer located between the second positioning boss and the washer; wherein
[0017] The bolt is adapted to pass through the gasket, rubber washer, motor end cover, and second positioning boss before connecting to the threaded hole.
[0018] Furthermore, the fixing component also includes: a plurality of fan-shaped support blocks arranged in a circular array on the first positioning boss; wherein
[0019] Each of the aforementioned sector-shaped support blocks is suitable for supporting the motor end cover.
[0020] Furthermore, the fixing component further includes: a positioning plate disposed at the bottom periphery of the second positioning boss; wherein
[0021] The positioning disk and the second positioning boss are integrally formed;
[0022] The positioning disk contacts the first positioning boss;
[0023] The positioning disk is provided with several fan-shaped through sections;
[0024] Each of the aforementioned sector-shaped support blocks is disposed within the corresponding sector-shaped through portion and contacts the first positioning boss.
[0025] Furthermore, the top of the first positioning boss is provided with a plurality of positioning holes arranged in a circular array;
[0026] The positioning disk is provided with a plurality of second through holes arranged in a circular array; wherein
[0027] Each of the second through holes is concentrically arranged with the corresponding positioning hole;
[0028] The fixing component further includes: a plurality of locating pins; wherein
[0029] Each of the aforementioned positioning pins is inserted into the concentric second through hole and positioning hole, respectively.
[0030] Furthermore, the base plate is provided with several clearance through holes;
[0031] The base plate is provided with at least four countersunk through holes.
[0032] The beneficial effects of this utility model are:
[0033] (I) This utility model places the motor end cover on a fixed assembly. The first positioning boss provides initial radial positioning, and the second positioning boss supports the motor end cover and provides secondary positioning for the bearing seat. The bolt passes through the shaft hole of the motor end cover and the second positioning boss and is threadedly connected to the first positioning boss. The positioning block clamps the end cover connection part from both sides to position the motor end cover. Then the bolt is tightened, and axial compression is achieved through preload. After the motor end cover is fully constrained, its machining coordinate system is forcibly unified with the tooling reference system. Machining can be started directly without tool setting, thereby improving machining efficiency.
[0034] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0037] Figure 1 This is a perspective view of a preferred embodiment of the present invention.
[0038] Figure 2 This is an exploded view of a preferred embodiment of the fixing component of this utility model;
[0039] Figure 3 This is a perspective view of a preferred embodiment of the fixing component of this utility model;
[0040] Figure 4 This is a perspective view of a preferred embodiment of the motor end cover of this utility model.
[0041] In the picture:
[0042] Base plate 1, clearance through hole 11, countersunk through hole 12;
[0043] Fixed component 2, first positioning boss 21, threaded hole 211, positioning hole 212, second positioning boss 22, first through hole 221, bolt 23, washer 24, rubber washer 25, sector support block 26, positioning plate 27, sector through part 271, second through hole 272, positioning pin 28;
[0044] Positioning block 3;
[0045] Motor end cover 4, bearing seat 41, shaft hole 42, reinforcing rib 43, connecting part 44. Detailed Implementation
[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1
[0047] like Figures 1 to 4 As shown, this embodiment provides a fixing fixture for machining motor end caps, including:
[0048] A base plate 1 has several fixing components 2 on its top. Each fixing component 2 includes: a first positioning boss 21 bolted to the base plate 1; a second positioning boss 22 located on top of the first positioning boss 21; and a bolt 23. The bolt 23 is adapted to pass through the motor end cover, through the second positioning boss 22, and then bolted to the first positioning boss 21 to fix the motor end cover. Several pairs of positioning blocks 3 are bolted to the base plate 1 and located between adjacent fixing components 2, suitable for positioning the connection portion of the motor end cover. The first positioning boss 21 achieves radial limiting of the motor end cover. The second positioning boss 22 is concentrically arranged with the first positioning boss 21. The second positioning boss 22 limits the bearing seat of the motor end cover and supports the motor end cover. The bolt 23 is bolted to the first positioning boss 21 to fix the motor end cover. The positioning blocks 3 limit the circumferential rotation of the motor end cover and position it.
[0049] In this embodiment, by placing the motor end cover on the fixing component 2, the first positioning boss 21 provides initial radial positioning, the second positioning boss 22 supports the motor end cover and provides secondary positioning for the bearing seat, the bolt 23 passes through the shaft hole of the motor end cover and the second positioning boss 22 and is threadedly connected to the first positioning boss 21, the positioning block 3 clamps the end cover connection part from both sides to position the motor end cover, and then the bolt 23 is tightened to achieve axial compression through preload. After the motor end cover is fully constrained, its machining coordinate system is forcibly unified with the tooling reference system, and machining can be started directly without tool setting, thereby improving machining efficiency.
[0050] The first positioning boss 21 has a threaded hole 211 in the middle; the second positioning boss 22 has a first through hole 221 in the middle; wherein the bolt 23 passes through the motor end cover and the second positioning boss 22 and connects to the threaded hole 211 to fix the motor end cover.
[0051] The fixing component 2 further includes a washer 24 located above the second positioning boss 22; wherein the bolt 23 is adapted to pass through the washer 24, the motor end cover and the second positioning boss 22 and connect to the threaded hole 211; wherein the washer 24 is made of stainless steel or copper alloy. By setting the washer 24, the force-bearing area of the bolt head 23 is increased, preventing damage to the surface of the motor end cover when the bolt 23 is tightened, and at the same time, the tightening force is evenly transmitted.
[0052] The fixing component 2 further includes a rubber washer 25 located between the second positioning boss 22 and the washer 24; wherein the bolt 23 is adapted to pass through the washer 24, the rubber washer 25, the motor end cover and the second positioning boss 22 and connect to the threaded hole 211; wherein by setting the rubber washer 25, the direct impact of the bolt 23 tightening force on the motor end cover is reduced, and the end cover surface is prevented from being crushed or deformed.
[0053] The fixing component 2 further includes: a plurality of fan-shaped support blocks 26 arranged in a circular array on the first positioning boss 21; wherein each of the fan-shaped support blocks 26 is adapted to support the motor end cover; wherein by setting the fan-shaped support blocks 26 to form an annular support surface, the motor end cover is supported while avoiding the reinforcing ribs of the motor end cover, thus avoiding the effect of local deformation of the motor end cover.
[0054] The fixing component 2 further includes: a positioning disk 27 disposed at the bottom periphery of the second positioning boss 22; wherein the positioning disk 27 is integrally formed with the second positioning boss 22; the positioning disk 27 is in contact with the first positioning boss 21; the positioning disk 27 is provided with a plurality of fan-shaped through portions 271; each fan-shaped support block 26 is disposed in the corresponding fan-shaped through portion 271 and is in contact with the first positioning boss 21; wherein by providing the fan-shaped through portions 271, the effect of precise positioning of the fan-shaped support block 26 is achieved; by providing the positioning disk 27 and the first positioning boss 21 as separate components, the effect of easy replacement of the positioning disk 27 is achieved, and the processing of the fan-shaped through portions 271 is also facilitated.
[0055] The top of the first positioning boss 21 is provided with a plurality of positioning holes 212 arranged in a circular array; the positioning disk 27 is provided with a plurality of second through holes 272 arranged in a circular array; wherein each second through hole 272 is concentrically arranged with the corresponding positioning hole 212; the fixing component 2 further includes: a plurality of positioning pins 28; wherein each positioning pin 28 is respectively inserted into the concentric second through hole 272 and positioning hole 212; by setting the positioning hole 212, the second through hole 272 and the positioning pin 28, the effect of positioning the fan-shaped through part 271 on the positioning disk 27 is achieved.
[0056] The base plate 1 is provided with a plurality of clearance through holes 11; the base plate 1 is provided with at least four countersunk through holes 12; wherein by providing clearance through holes 11, the effect of avoiding interference with drilling tools such as drill bits is achieved; wherein by providing countersunk through holes 12, the effect of facilitating connection with processing equipment via countersunk screws is achieved.
[0057] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0058] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0059] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0060] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A fixing fixture for machining motor end caps, characterized in that, include: The base plate (1) has several fixing components (2) on its top. in The fixing component (2) includes: a first positioning boss (21) bolted to the base plate (1), a second positioning boss (22) disposed on the top of the first positioning boss (21), and a bolt (23); and The bolt (23) is adapted to pass through the motor end cover, through the second positioning boss (22), and then be bolted to the first positioning boss (21) to fix the motor end cover; Several pairs of positioning blocks (3) are bolted to the base plate (1) and are located between two adjacent fixed components (2), which are suitable for positioning the connection part of the motor end cover.
2. The fixing fixture for machining the motor end cover as described in claim 1, characterized in that, The first positioning boss (21) has a threaded hole (211) in the middle. The second positioning boss (22) has a first through hole (221) in the middle; wherein The bolt (23) passes through the motor end cover and the second positioning boss (22) and connects to the threaded hole (211) to fix the motor end cover.
3. The fixing fixture for machining the motor end cover as described in claim 2, characterized in that, The fixing component (2) further includes: a gasket (24) located above the second positioning boss (22); wherein The bolt (23) is adapted to pass through the gasket (24), the motor end cover and the second positioning boss (22) and then connect to the threaded hole (211).
4. The fixing fixture for machining the motor end cover as described in claim 3, characterized in that, The fixing component (2) further includes: a rubber washer (25) located between the second positioning boss (22) and the gasket (24); wherein The bolt (23) is adapted to pass through the gasket (24), the rubber washer (25), the motor end cover and the second positioning boss (22) and then connect to the threaded hole (211).
5. The fixing fixture for machining the motor end cover as described in claim 4, characterized in that, The fixing component (2) further includes: a plurality of fan-shaped support blocks (26) arranged in a circular array on the first positioning boss (21); wherein Each of the aforementioned sector-shaped support blocks (26) is adapted to support the motor end cover.
6. The fixing fixture for machining the motor end cover as described in claim 5, characterized in that, The fixing component (2) further includes: a positioning plate (27) disposed at the bottom periphery of the second positioning boss (22); wherein The positioning disk (27) and the second positioning boss (22) are integrally formed; The positioning disk (27) contacts the first positioning boss (21); The positioning disk (27) is provided with several fan-shaped through parts (271); Each of the aforementioned sector-shaped support blocks (26) is disposed within the corresponding sector-shaped through portion (271) and contacts the first positioning boss (21).
7. The fixing fixture for machining the motor end cover as described in claim 6, characterized in that, The top of the first positioning boss (21) is provided with a plurality of positioning holes (212) arranged in a circular array. The positioning disk (27) is provided with a plurality of second through holes (272) arranged in a circular array; wherein Each of the second through holes (272) is concentrically arranged with the corresponding positioning hole (212); The fixing component (2) further includes: a plurality of locating pins (28); wherein Each of the positioning pins (28) is inserted into the concentric second through hole (272) and positioning hole (212).
8. The fixing fixture for machining the motor end cover as described in claim 7, characterized in that, The base plate (1) is provided with several clearance through holes (11); The base plate (1) is provided with at least four countersunk through holes (12).