Motor shell positioning and clamping device

Abstract

The utility model discloses a motor shell positioning and clamping device, which comprises a bottom plate, a positioning gasket, a fixed seat, an expansion sleeve and an elastic positioning seat, the fixed seat is arranged on the bottom plate, the expansion sleeve is vertically arranged on the fixed seat, the positioning gasket is arranged on the fixed seat and is concentric with the expansion sleeve, and the elastic positioning seat is arranged on the positioning gasket. A support located on one side of the expansion sleeve is arranged on the bottom plate, the elastic positioning seat is arranged on the support in a transversely-moving mode, a convex rib is vertically arranged on the upper portion of the outer side of the motor shell, a positioning groove corresponding to the convex rib is formed in the side, facing the expansion sleeve, of the elastic positioning seat in an inwards-concave mode, and the inner wall of the motor shell is fixed in an expansion mode through the expansion sleeve. The bottom of the motor shell is positioned by matching an insert block on the positioning gasket with a groove in the bottom of the motor shell, and dislocation of a clamping angle is avoided and adverse effects on outer wall machining are reduced by matching a positioning groove in the elastic positioning seat with a convex rib at the upper part of the outer side of the motor shell.

Description

Technical Field

[0001] This utility model relates to the field of motor housing clamping technology, and in particular to a motor housing positioning and clamping device. Background Technology

[0002] During the machining of the outer wall of the motor housing of the rear wheel steering motor, the motor housing must first be clamped and fixed to ensure the stability and positioning accuracy of the machining process.

[0003] Because machining of the outer wall of the motor housing is required, it is necessary to minimize the coverage of the fixture on the outer wall of the motor housing, which increases the difficulty of clamping. In addition, in order to ensure the accuracy of machining, the motor housing needs to be positioned to avoid misalignment of the clamping angle, thus further increasing the design difficulty of the fixture and requiring improvement. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a motor housing positioning and clamping device for positioning and clamping the motor housing, thereby reducing the impact on the machining of the outer wall.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution: a motor housing positioning and clamping device, comprising: a base plate, a positioning washer, a fixed seat, an expansion sleeve, and an elastic positioning seat. The fixed seat is disposed on the base plate, the expansion sleeve is vertically disposed on the fixed seat, the positioning washer is disposed on the fixed seat and is concentric with the expansion sleeve, a bracket is disposed on the base plate on one side of the expansion sleeve, the elastic positioning seat is movably disposed on the bracket, a rib is vertically disposed on the upper outer side of the motor housing, and a positioning groove corresponding to the rib is recessed on the side of the elastic positioning seat facing the expansion sleeve.

[0006] In a preferred embodiment of this utility model, the expansion sleeve is a plate-type gas expansion sleeve.

[0007] In a preferred embodiment of the present invention, the bottom of the motor housing is provided with several grooves, and the positioning washer is provided with interlocking blocks corresponding to the grooves at intervals.

[0008] In a preferred embodiment of the present invention, the bracket is provided with a guide seat corresponding to the elastic positioning seat, the guide seat is provided with a guide groove in the transverse direction, and the tail of the elastic positioning seat is provided with a guide block extending into the guide groove.

[0009] In a preferred embodiment of the present invention, a baffle is provided on the back of the guide seat, and a screw extending into the guide groove and connected to the guide block is provided on the outer side of the baffle. A spring is provided between the baffle and the guide block.

[0010] In a preferred embodiment of the present invention, the fixing base is provided with several annularly spaced limiting blocks distributed on the outside of the positioning washer.

[0011] In a preferred embodiment of the present invention, a protrusion is provided on the lower part of the outer wall of the motor housing, and a groove corresponding to the protrusion is provided on the inner side of a portion of the limiting block.

[0012] The beneficial effects of this utility model are as follows: The motor housing positioning and clamping device disclosed in this utility model expands and fixes the inner wall of the motor housing through an expansion sleeve to prevent loosening. It uses the insert on the positioning washer to cooperate with the groove at the bottom of the motor housing to achieve positioning of the bottom of the motor housing, reducing torsion problems. It also uses the positioning groove on the elastic positioning seat to cooperate with the protruding rib on the upper outer side of the motor housing for precise positioning, avoiding misalignment of the clamping angle and ensuring the accuracy of subsequent machining. Moreover, the elastic positioning seat is small in size, reducing the adverse effects on the machining of the outer wall. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0014] Figure 1 This is a schematic diagram of a preferred embodiment of the motor housing positioning and clamping device of this utility model;

[0015] Figure 2 yes Figure 1 Cross-sectional view of the central support and the elastic positioning seat;

[0016] Figure 3 This is a schematic diagram of a preferred embodiment of the motor housing positioning and clamping device of this utility model after clamping the motor housing. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

[0018] Please see Figures 1-3 The embodiments of this utility model include:

[0019] like Figure 1The motor housing positioning and clamping device shown is used for positioning and clamping the motor housing 12. It includes: a base plate 1, a positioning washer 3, a fixing seat 2, a tension sleeve 5, and an elastic positioning seat 9. The fixing seat 2 is set on the base plate 1. Two fixing seats 2 can be installed on the base plate 1 at the same time to clamp and fix two motor housings 12 simultaneously, thereby improving processing efficiency.

[0020] The expansion sleeve 5 is vertically mounted on the fixed base 2. In this embodiment, the expansion sleeve 5 is a plate-type air expansion sleeve, and its expansion is controlled by a corresponding air passage. Figure 3 As shown, the motor housing 12 is fitted onto the expansion sleeve 5. The expansion sleeve 5 expands and fixes the inner wall of the motor housing 12 to prevent it from loosening.

[0021] Positioning washer 3 is placed on fixed seat 2 and concentric with expansion sleeve 5, such as Figure 1 As shown, the positioning washer 3 is concentrically positioned on the lower outer side of the expansion sleeve 5. In this embodiment, the bottom of the motor housing 12 is provided with several grooves, and the positioning washer 3 is provided with interlocking blocks 4 corresponding to the grooves at intervals. The interlocking blocks 4 cooperate with the grooves on the bottom of the motor housing to achieve positioning of the bottom of the motor housing 12 and reduce torsion problems.

[0022] In addition, the fixing base 1 is provided with several annularly spaced limiting blocks 6 distributed on the outside of the positioning washer 3, such as Figure 3 As shown, after the motor housing 12 is installed on the expansion sleeve 5, the bottom outer side of the motor housing 12 is limited by the limiting block 6. A protrusion is provided on the lower part of the outer wall of the motor housing 12, and a groove 7 corresponding to the protrusion is provided on the inner side of part of the limiting block 6. The protrusion is positioned by the groove 7, which further improves the stability of the motor housing 12 after clamping.

[0023] A bracket 11 is provided on the base plate 1, located on one side of the expansion sleeve 5. The bracket 11 can be fixed to the base plate 1 with fastening screws, making the structure sturdy. The bracket 11 adopts a column structure, which is small in size and reduces the space occupied. The elastic positioning seat 9 is slidably set on the bracket 11. A rib 13 is vertically provided on the upper outer side of the motor housing 12. The elastic positioning seat 9 is recessed on the side facing the expansion sleeve, with a positioning groove 8 corresponding to the rib 13. Through the cooperation of the positioning groove 8 and the rib 13, precise positioning is achieved, avoiding misalignment of the clamping angle and ensuring the accuracy of subsequent machining. Moreover, the elastic positioning seat 9 is small in size, reducing the adverse effects on the machining of the outer wall of the motor housing 12.

[0024] like Figure 2 As shown, the bracket 11 is provided with a guide seat 10 corresponding to the elastic positioning seat 9. The guide seat 10 is provided with a guide groove 14 in the transverse direction. The tail of the elastic positioning seat 9 is provided with a guide block 18 extending into the guide groove 10 to guide the transverse movement of the elastic positioning seat 9.

[0025] A baffle 16 is provided on the back of the guide seat 10. The baffle 16 can be fixed by fastening screws, making the structure sturdy. A screw 17 is provided on the outer side of the baffle 16, extending into the guide groove 10 and connecting to the guide block 18, to limit the outward movement of the guide block 18 and prevent it from flying off. In this embodiment, a spring 15 is provided between the baffle 16 and the guide block 18 to provide elastic support for the guide block 18, which helps maintain the elastic contact between the positioning groove 8 and the protruding rib 13, improving the convenience of installation and disassembly.

[0026] In summary, the motor housing positioning and clamping device disclosed in this utility model can position and clamp the motor housing, avoiding the problems of motor housing torsion and installation misalignment, and is conducive to improving processing efficiency and accuracy.

[0027] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A motor housing positioning and clamping device for positioning and clamping a motor housing, characterized in that, include: The device comprises a base plate, a positioning washer, a fixed seat, an expansion sleeve, and an elastic positioning seat. The fixed seat is mounted on the base plate, the expansion sleeve is vertically mounted on the fixed seat, the positioning washer is mounted on the fixed seat and is concentric with the expansion sleeve, a bracket is mounted on the base plate on one side of the expansion sleeve, the elastic positioning seat is laterally mounted on the bracket, a raised rib is vertically mounted on the upper outer side of the motor housing, and a positioning groove corresponding to the raised rib is recessed on the side of the elastic positioning seat facing the expansion sleeve.

2. The motor housing positioning and clamping device according to claim 1, characterized in that, The expansion sleeve is a plate-type gas expansion sleeve.

3. The motor housing positioning and clamping device according to claim 1, characterized in that, The bottom of the motor housing is provided with several grooves, and the positioning washer is provided with inserts corresponding to the grooves at intervals.

4. The motor housing positioning and clamping device according to claim 1, characterized in that, The bracket is provided with a guide seat corresponding to the elastic positioning seat, the guide seat is provided with a guide groove in the transverse direction, and the tail of the elastic positioning seat is provided with a guide block extending into the guide groove.

5. The motor housing positioning and clamping device according to claim 4, characterized in that, A baffle is provided on the back of the guide seat, and a screw is provided on the outside of the baffle, extending into the guide groove and connecting to the guide block. A spring is provided between the baffle and the guide block.

6. The motor housing positioning and clamping device according to claim 1, characterized in that, The fixed base is provided with several annularly spaced limiting blocks distributed on the outside of the positioning washer.

7. The motor housing positioning and clamping device according to claim 6, characterized in that, The lower part of the outer wall of the motor housing is provided with a protrusion, and some of the limiting blocks are provided with a slot corresponding to the protrusion on the inner side.

Images