A positioning tool

Abstract

The utility model discloses a positioning frock, including the positioning board and the positioning piece of one end connection in the positioning board, and the electric shell body sleeve joint is on the positioning piece, the one end of positioning board close to the positioning piece has the positioning surface for with the end portion of electric shell body abuts to axial positioning electric shell body, be equipped with the punching guide on the positioning board, the punching guide has the guide hole of diameter and the drill bit of punching equipment match, when one end of electric shell body with the positioning surface abutted, the axis of guide hole corresponds with the preset punching position of electric shell body. The utility model has the beneficial effect that can improve the punching accuracy and punching efficiency.

Description

Technical Field

[0001] This utility model relates to a positioning fixture, which is an improved design of a positioning fixture for drilling holes in a motor housing. Background Technology

[0002] The motor housing is a crucial component of the motor. It not only protects the internal components but also requires excellent heat dissipation capabilities to effectively transfer heat generated inside the motor to the outside. Furthermore, to ensure stable motor operation during manufacturing, a mounting bracket needs to be installed at the bottom of the housing. This requires drilling holes in the motor housing for the bracket to securely connect to the housing.

[0003] Currently, most motor housings are cylindrical, so drilling only requires drilling at a fixed position along the axial direction of the motor housing to achieve consistent hole patterns. Typically, during drilling, a clamp is used to hold and fix the motor housing, and then a drilling device (usually an electric drill) is manually operated for positioning and drilling. This method requires manual control of the drilling device to align with the preset drilling position on the motor housing, which not only easily leads to positioning deviations affecting drilling accuracy but also results in slow drilling efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a positioning fixture that can improve drilling accuracy and drilling efficiency.

[0005] This utility model is achieved through the following technical solution.

[0006] A positioning fixture for positioning a motor housing includes a positioning plate and a positioning element connected to the positioning plate at one end. The motor housing is fitted onto the positioning element. The positioning plate has a positioning surface at one end near the positioning element for axially positioning the motor housing by abutting against the end of the motor housing. The positioning plate is provided with a drilling guide, which has a guide hole with a diameter matching the drill bit of a drilling device. When one end of the motor housing abuts against the positioning surface, the axis of the guide hole corresponds to a preset drilling position on the motor housing.

[0007] As a further improvement of this utility model, the outer surface of the positioning member is interference-fitted with the inner surface of the electrical housing.

[0008] As a further improvement of this utility model, the axial projection of the battery casing falls within the vertical coverage area of ​​the positioning surface.

[0009] As a further improvement of this utility model, the end face of the battery casing near the positioning surface is parallel to the positioning surface.

[0010] As a further improvement of this utility model, the drilling guide is detachably connected to the positioning plate.

[0011] As a further improvement of this utility model, the punching guide is provided with at least one first connecting hole, and the positioning plate is provided with a second connecting hole corresponding to each first connecting hole. Fasteners pass through the first connecting hole and the second connecting hole to detachably connect the punching guide and the positioning plate.

[0012] As a further improvement of this utility model, the positioning member is provided with a clearance hole for the drill bit of the drilling equipment to pass through; the projection of the guide hole in the vertical direction falls within the horizontal coverage area of ​​the clearance hole.

[0013] As a further improvement of this utility model, the positioning member has an internal receiving space that connects to the clearance hole.

[0014] As a further improvement of this utility model, the bottom of the positioning plate is provided with a support plate for supporting the positioning plate.

[0015] As a further improvement of this utility model, the support plate is provided with mounting holes for fixing the support plate and the worktable.

[0016] The beneficial effects of this utility model are:

[0017] 1. The axial positioning of the motor housing is achieved by the cooperation of the positioning component and the positioning surface. When one end of the motor housing abuts against the positioning surface, the guide hole of the drilling guide coincides with the preset drilling axis. The guide hole provides guidance for the drill bit of the drilling equipment, so that the drill bit can move accurately to the preset drilling position under the guidance of the guide hole. On the one hand, it reduces the manual alignment time and helps to improve drilling efficiency, and on the other hand, it can improve drilling accuracy.

[0018] 2. The motor housing is fitted onto the outer surface of the positioning component, so that the outer surface of the positioning component can provide stable support for the motor housing during drilling. This can prevent the hole position from shifting or becoming incorrect due to deformation of the motor housing during drilling, and helps to improve drilling accuracy. Attached Figure Description

[0019] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of a positioning tool according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the positioning tool and the motor housing in this utility model;

[0022] Figure 3 This is a schematic diagram of the connection between the positioning component and the positioning plate.

[0023] Figure 4 for Figure 1 Top view;

[0024] Figure 5 Schematic diagram of the connection between the positioning plate and the support plate Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0027] This embodiment provides a positioning fixture for positioning the motor housing m during drilling, as shown in the reference. Figures 1-5 The device includes a positioning plate 1 and a positioning element 2 connected to the positioning plate 1 at one end. The motor housing m is sleeved on the outer surface of the positioning element 2. The side of the positioning plate 1 near the positioning element 2 has a positioning surface 11 for axially positioning the motor housing m by abutting against the end of the motor housing m. The positioning plate 1 is provided with a drilling guide 3, which has a guide hole 31 with a diameter matching the drill bit of the drilling equipment. When one end of the motor housing m abuts against the positioning surface 11, the axis of the guide hole 31 corresponds to the preset drilling position of the motor housing m.

[0028] In this embodiment, the axial positioning of the motor housing m is achieved by the cooperation of the positioning component 2 and the positioning surface 11, thereby eliminating the axial displacement error of the motor housing m. At the same time, when one end of the motor housing m abuts against the positioning surface 11, the guide hole 31 of the drilling guide component 3 coincides with the preset drilling axis. The guide hole 31 provides guidance for the drill bit of the drilling equipment, enabling the drill bit to move quickly and accurately to the preset drilling position under the guidance of the guide hole 31. This reduces the manual alignment time and helps to improve drilling efficiency, while also improving drilling accuracy.

[0029] Meanwhile, the motor housing m is sleeved on the outer surface of the positioning part 2. When drilling, the outer surface of the positioning part 2 forms a stable support for the motor housing m, which can avoid the hole position offset or error caused by the deformation of the motor housing m during drilling, and helps to improve the drilling accuracy.

[0030] It should be noted that the diameter of the guide hole 31 matched with the drill bit of the drilling equipment means that the diameter of the guide hole 31 needs to be slightly larger than the diameter of the drill bit to ensure that the drill bit can pass smoothly through the guide hole 31 and reduce the risk of deviation. The axis of the guide hole 31 corresponds to the preset drilling position on the motor housing m. It is only necessary to set the distance between the guide hole 31 and the positioning surface 11 along the axial direction to be the same as the distance between the preset drilling position on the motor housing and the positioning surface along the axial direction.

[0031] In this embodiment, the positioning member 2 is cylindrical, and the outer surface of the positioning member 2 is interference-fitted with the inner surface of the motor housing m. The interference fit structure makes the positioning member 2 and the inner wall of the motor housing m have a large friction force, which prevents the motor housing m from rotating or shaking when subjected to the force of the drilling equipment during drilling, improves the stability of the connection between the motor housing m and the positioning member 2, and thus improves the stability of the drilling process.

[0032] In this embodiment, the end face of the motor housing m that abuts against the positioning surface 11 is parallel to the positioning surface 11. This parallel design eliminates potential tilting errors during motor housing m installation and avoids drilling errors, thus improving drilling accuracy. Furthermore, the axial projection of the motor housing m falls within the vertical coverage area of ​​the positioning surface 11. When one end face of the motor housing m abuts against the positioning surface 11, it is completely flush with the surface, resulting in a large contact area. This improves the stability of the contact and helps reduce the risk of vibration or displacement of the motor housing m during drilling, thereby enhancing processing stability.

[0033] In this embodiment, the drilling guide 3 is detachably connected to the positioning plate 1. This detachable design allows for the replacement of drilling guides 3 of different specifications according to processing requirements, satisfying drilling needs for different hole diameters or positions and improving the versatility of the tooling. It should be noted that different specifications of the drilling guide 3 refer to different positions or diameters of the guide holes 31.

[0034] Specifically, the drilling guide 3 has at least one first connecting hole 32, and the positioning plate 1 has a second connecting hole 12 corresponding to each first connecting hole 32. Fasteners pass through the first connecting holes 32 and the second connecting holes 12 to detachably connect the drilling guide 3 and the positioning plate 1. These fasteners can be bolts, meaning the first connecting holes 32 and the second connecting holes 12 are threaded holes for bolting. Bolts allow for quick assembly and disassembly of the drilling guide 3 and the positioning plate 1. Alternatively, the fasteners can be positioning pins, allowing for quick assembly and disassembly of the drilling guide 3 and the positioning plate 1 by inserting and removing positioning pins.

[0035] Furthermore, since the drilling equipment is manually controlled during drilling, the end of the drill bit is prone to colliding with the positioning component 2. This collision not only affects the stability of the drill bit's movement but also easily damages it. Therefore, to address these issues, the positioning component 2 is equipped with a clearance hole 21 for the drill bit to pass through. The projection of the guide hole 31 along the vertical direction falls within the horizontal coverage area of ​​the clearance hole 21. The clearance hole 21 corresponds to the guide hole 31, providing a channel for the drill bit's movement. This not only prevents damage to the drill bit and the positioning component 2, effectively protecting the integrity of the drill bit and the positioning fixture, but also helps maintain the stability of the drill bit's movement and ensures drilling accuracy.

[0036] In addition, the positioning component 2 has a receiving space formed inside the connecting clearance hole 21. The receiving space is used to collect metal debris generated during drilling, so as to avoid metal debris flying and causing safety hazards and improve the safety of operation.

[0037] In this embodiment, the bottom of the positioning plate 1 is provided with a support plate 4 for supporting the positioning plate 1. The support plate 4 is horizontally arranged, and the bottom of the support plate 4 has a large contact area, thereby stably supporting the positioning plate 1. Furthermore, the support plate 4 is provided with mounting holes 41 that penetrate through the support plate 4. When the positioning fixture is placed on the worktable, it can be fixed to the worktable by bolts, pins, or other fasteners passing through the mounting holes 41, thereby fixing the support plate 4 to the worktable, realizing the overall fixation of the positioning fixture, and ensuring the stability of the drilling operation.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such 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 this utility model.

Claims

1. A positioning fixture for positioning a motor housing (m) during drilling, characterized in that, The device includes a positioning plate (1) and a positioning element (2) connected to the positioning plate (1) at one end. The motor housing (m) is sleeved on the outer surface of the positioning element (2). The positioning plate (1) has a positioning surface (11) on the side near the positioning element (2) for abutting against the end of the motor housing (m) to axially position the motor housing. The positioning plate (1) is provided with a drilling guide (3). The drilling guide (3) has a guide hole (31) with a diameter matching the drill bit of the drilling equipment. When one end of the motor housing (m) abuts against the positioning surface (11), the axis of the guide hole (31) corresponds to the preset drilling position of the motor housing (m).

2. The positioning fixture according to claim 1, characterized in that, The outer surface of the positioning component (2) is interference-fitted with the inner surface of the motor housing (m).

3. The positioning fixture according to claim 1, characterized in that, The end face of the motor housing (m) that abuts against the positioning surface (11) is parallel to the positioning surface (11).

4. A positioning fixture according to claim 3, characterized in that, The axial projection of the motor housing (m) falls within the vertical coverage area of ​​the positioning surface (11).

5. A positioning fixture according to claim 1, characterized in that, The punching guide (3) is detachably connected to the positioning plate (1).

6. A positioning fixture according to claim 5, characterized in that, The punching guide (3) is provided with at least one first connecting hole (32), and the positioning plate (1) is provided with a second connecting hole (12) corresponding to each first connecting hole (32). The fastener passes through the first connecting hole (32) and the second connecting hole (12) to detachably connect the punching guide (3) and the positioning plate (1).

7. A positioning fixture according to claim 1, characterized in that, The positioning member (2) is provided with a clearance hole (21) for the drill bit of the drilling equipment to pass through; the projection of the guide hole (31) in the vertical direction falls within the horizontal coverage area of ​​the clearance hole (21).

8. A positioning fixture according to claim 7, characterized in that, The positioning member (2) has an internal receiving space that connects to the clearance hole (21).

9. A positioning fixture according to claim 1, characterized in that, The bottom of the positioning plate (1) is provided with a support plate (4) for supporting the positioning plate (1).

10. A positioning fixture according to claim 9, characterized in that, The support plate (4) is provided with mounting holes (41) for fixing the support plate (4) and the workbench.

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