Tool for inserting internal teeth of motor shaft

Abstract

The utility model provides a motor shaft inner tooth inserting tool which comprises a slotting tool, a motor shaft, a dustproof cover, an expansion sleeve assembly, a tool sleeve and a lower tip, the dustproof cover is installed above the tool sleeve, the slotting tool is arranged above the dustproof cover, the lower tip is installed at the lower end in the tool sleeve, the expansion sleeve assembly is installed at the upper end in the tool sleeve, and the motor shaft is sleeved with the expansion sleeve assembly. The bottom of the motor shaft is sleeved with the lower tip, and the top of the motor shaft penetrates through the expansion sleeve assembly to be sleeved with the slotting tool. The utility model has the beneficial effects that on-site processing can be performed deeply, rapid on-site processing is realized, the lower tip is positioned, the position of a slotting tool adopts an expansion sleeve principle, clamping errors caused by gaps are eliminated, and the product quality is improved; materials can be saved, retaining shoulder positioning is replaced by center hole positioning, the blank material allowance is small, the material is light, and the blanking single-piece cost is low; cutter can be saved, materials are few, cutting allowance is small, and the cost of a single cutter is low.

Description

Technical Field

[0001] The utility model belongs to the field of automobile series motor shafts and connecting shaft products, in particular to a motor shaft internal gear inserting tool. Background Art

[0002] For the traditional tooling clamping and fixing processing design of the internal gear inserting of the motor shaft and the connecting shaft of the automotive series, it is necessary to reserve the shoulder positioning (such as Figure 5 (as shown) to ensure parallelism and verticality after fixture clamping. This ensures that the finished product meets the requirements of the user's drawings.

[0003] Disadvantages of reserved shoulder positioning technology:

[0004] Material waste: Preserving the shoulder for positioning requires the blank material to be 3-5mm larger than the outer dimensions on one side. Large margins mean the material is heavier, increasing the cost of each piece. Tool waste: Excess material requires large turning margins, wasting tool cost per piece. Process waste: Preserving the shoulder requires two additional steps. Machine tool waste: The additional steps require multiple pieces of equipment, necessitating the purchase of new machines. Personnel waste: The additional steps require operators. Utility Model Content

[0005] In view of this, the present invention aims to provide a tool for inserting internal gears into a motor shaft to solve at least one problem existing in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] A tool for inserting internal gears on a motor shaft comprises a tool inserter, a motor shaft, a dust cover, an expansion sleeve assembly, a tool sleeve and a lower center. The dust cover is installed above the tool sleeve, and a tool inserter is provided above the dust cover. The lower center is installed at the lower end of the tool sleeve, and the expansion sleeve assembly is installed at the upper end of the tool sleeve. The motor shaft is sleeved inside the expansion sleeve assembly, and the bottom of the motor shaft is sleeved with the lower center, and the top of the motor shaft passes through the expansion sleeve assembly and is sleeved with the tool inserter.

[0008] Furthermore, a blade sleeve is installed on the top of the blade.

[0009] Furthermore, the dust cover includes a dust cover body, a middle part of which is provided with a clearance hole, the clearance hole is used to avoid the expansion sleeve component, the dust cover body is provided with a circle of dustproof folding edges in the circumferential direction downward, and the dust cover body is also provided with dustproof mounting holes at equal intervals in the circumferential direction.

[0010] Furthermore, the dust cover body and the dustproof folding edge are an integrally formed structure.

[0011] Furthermore, a clearance space is provided in the middle portion of the lower portion of the dust cover body, and the clearance space is used to leave a gap for the outer expansion sleeve.

[0012] Furthermore, the expansion sleeve assembly includes an outer expansion sleeve and an inner expansion sleeve. The outer side of the outer expansion sleeve is sleeved to the inner wall of the tooling sleeve, the inner side of the outer expansion sleeve is sleeved to the upper part of the inner side, and the inner expansion sleeve is sleeved to the motor shaft.

[0013] Furthermore, the tooling sleeve includes an outer sleeve, an inner sleeve and a matching body. The lower top is sleeved on the lower part of the inner sleeve, the top of the outer sleeve is connected to the inner sleeve, and the matching body is also sleeved on the connection between the inner wall of the outer sleeve and the inner sleeve. The lower top is sleeved on the lower part of the matching body, and the upper part of the matching body is used in conjunction with the outer expansion sleeve.

[0014] Furthermore, a circle of L-shaped limiting grooves is provided on the outer side of the outer expansion sleeve, and a circle of L-shaped limiting bosses is provided on the inner side of the matching body, and the L-shaped limiting grooves and the L-shaped limiting bosses can be engaged with each other.

[0015] Compared with the prior art, the motor shaft internal gear inserting tool described in the present invention has the following advantages:

[0016] (1) The motor shaft internal gear inserting tool described in the present invention can be used for in-depth on-site processing and rapid on-site processing. The lower center is positioned and the inserting tool position uses the expansion sleeve principle to eliminate the clamping error caused by the gap and improve product quality. It can save materials, cancel the shoulder positioning and change it to center hole positioning. The blank material excess is small and the material is definitely light, and the cost of cutting a single piece is low. It can save tools, with less material and small cutting allowance, and the cost of a single tool is low.

[0017] (2) The motor shaft internal gear inserting tool described in the present invention can save process, eliminate the shoulder, and require at most two processing steps, thereby optimizing the process and reducing costs; it can save machine tools and equipment, reduce the narrow gap in the production capacity of process equipment, and eliminate the need to purchase new machine tools; it can save personnel, reduce the number of processes, reduce staff and increase efficiency, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0021] Figure 3 This is a front view schematic diagram of the outer shell according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the outer shell according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of a shoulder positioning assembly in the prior art.

[0024] Description of reference numerals:

[0025] 1. Insert blade; 2. Motor shaft; 3. Dust cover; 31. Clearance hole; 32. Dust-proof folding edge; 4. Expansion sleeve assembly; 41. Outer expansion sleeve; 411. L-shaped limiting groove; 42. Inner expansion sleeve; 5. Tool sleeve; 51. Outer sleeve; 52. Inner sleeve; 53. Matching body; 531. L-shaped limiting boss; 6. Lower center. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] like Figures 1 to 4As shown, a tool for inserting internal gears of a motor shaft comprises a tool inserter 1, a motor shaft 2, a dust cover 3, an expansion sleeve assembly 4, a tool sleeve 5 and a lower center 6. The dust cover 3 is installed above the tool sleeve 5, and a tool inserter 1 is provided above the dust cover 3. The lower center 6 is installed at the lower end of the tool sleeve 5, and the expansion sleeve assembly 4 is installed at the upper end of the tool sleeve 5. The motor shaft 2 is sleeved inside the expansion sleeve assembly 4, and the bottom of the motor shaft 2 is sleeved with the lower center 6. The top of the motor shaft 2 passes through the expansion sleeve assembly 4 and is sleeved with the tool inserter 1.

[0031] Advantages of this utility model:

[0032] 1. In-depth on-site processing, to achieve rapid on-site processing, the center positioning, inserting the knife position using the expansion sleeve principle, to eliminate the clamping error caused by the gap, and improve product quality.

[0033] 2. Save materials, cancel the shoulder positioning, and change it to center hole positioning. The blank material allowance is small and the material is definitely light, and the cost of each piece is low.

[0034] 3. Save tools, less material, small cutting allowance, and low cost per tool.

[0035] In a preferred embodiment of the present invention, a blade sleeve is installed on the top of the blade 1. When it is actually used, the top of the blade 1 is installed in the blade sleeve, and the bottom of the blade 1 can be inserted into the motor shaft 2.

[0036] In a preferred embodiment of the present invention, the dust cover 3 includes a dust cover body, a middle part of the dust cover body is provided with a clearance hole 31, the clearance hole 31 is used to avoid the expansion sleeve assembly 4, the dust cover body is provided with a circle of dustproof folding edges 32 in the circumferential direction downward, and the dust cover body is also provided with dustproof mounting holes equidistantly in the circumference. In this embodiment, a clearance space is also provided in the lower middle part of the dust cover body, and the clearance space is used to leave a gap for the outer expansion sleeve 41 to avoid the outer expansion sleeve 41 directly pressing on the dust cover body. In actual use, the dust cover 3 is installed to the tooling sleeve 5 by bolts through the dustproof mounting hole. The dust cover body and the dustproof folding edge 32 can be formed as an integral part, and the dustproof folding edge 32 can cover the tooling sleeve 5 to prevent dust from falling into the tooling.

[0037] In a preferred embodiment of the present invention, the expansion sleeve assembly 4 includes an outer expansion sleeve 41 and an inner expansion sleeve 42. The outer expansion sleeve 41 is sleeved onto the inner wall of the tooling sleeve 5. The inner expansion sleeve 42 is sleeved onto the upper inner side of the outer expansion sleeve 41. The inner expansion sleeve 42 is sleeved onto the motor shaft 2. In this embodiment, the inner expansion sleeve 42 is snapped onto the outer rim of the upper end of the motor shaft 2.

[0038] In a preferred embodiment of the present invention, the tool sleeve 5 comprises an outer sleeve 51, an inner sleeve 52, and a fitting body 53. The lower portion of the outer sleeve 51 is sleeved with the lower tip 6, and the top of the outer sleeve 51 is connected to the inner sleeve 52. The fitting body 53 is also sleeved at the junction of the inner walls of the outer sleeve 51 and the inner sleeve 52. The lower portion of the fitting body 53 is sleeved with the lower tip 6, and the upper portion of the fitting body 53 cooperates with the outer expansion sleeve 41. In actual use, the outer expansion sleeve 41 is provided with a circle of L-shaped limiting grooves 411 on the outside, and the fitting body 53 is provided with a circle of L-shaped limiting protrusions 531 on the inside. The L-shaped limiting grooves 411 and the L-shaped limiting protrusions 531 can interlock. This can improve the connection strength between the expansion sleeve assembly 4 and the tool sleeve 5.

[0039] The utility model can also save technology, eliminate the shoulder block, and require at most two-step processing, thereby optimizing the process and reducing costs; saving machine tools and equipment, reducing the narrow gap in the production capacity of process equipment, and eliminating the need to purchase new machine tools; saving personnel, reducing processes, reducing staff and increasing efficiency, and reducing costs.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor shaft internal gear inserting tool, characterized by: The utility model comprises a plunger (1), a motor shaft (2), a dust cover (3), an expansion sleeve assembly (4), a tool sleeve (5) and a lower center (6); the dust cover (3) is installed above the tool sleeve (5); a plunger (1) is provided above the dust cover (3); the lower center (6) is installed at the lower end of the tool sleeve (5); the expansion sleeve assembly (4) is installed at the upper end of the tool sleeve (5); the motor shaft (2) is sleeved inside the expansion sleeve assembly (4); the bottom of the motor shaft (2) is sleeved with the lower center (6); the top of the motor shaft (2) passes through the expansion sleeve assembly (4) and is sleeved with the plunger (1); The expansion sleeve assembly (4) comprises an outer expansion sleeve (41) and an inner expansion sleeve (42); the outer side of the outer expansion sleeve (41) is sleeved onto the inner wall of the tooling sleeve (5); the inner side of the outer expansion sleeve (41) is sleeved onto the upper part of the inner side of the inner expansion sleeve (42); and the inner side of the inner expansion sleeve (42) is sleeved onto the motor shaft (2).

2. The motor shaft internal gear inserting fixture according to claim 1, characterized in that: A blade sleeve is installed on the top of the blade (1).

3. The motor shaft internal gear inserting tool according to claim 1, characterized in that: The dust cover (3) comprises a dust cover body, a middle portion of which is provided with a clearance hole (31), the clearance hole (31) being used to avoid the expansion sleeve assembly (4), a dustproof folding edge (32) being provided circumferentially downwardly on the dust cover body, and dustproof mounting holes being provided equidistantly on the dust cover body.

4. The motor shaft internal gear inserting tool according to claim 3, characterized in that: The dust cover body and the dust folding edge (32) are an integrally formed structure.

5. The motor shaft internal gear inserting tool according to claim 3, characterized in that: A clearance space is also provided in the middle portion of the lower portion of the dust cover body, and the clearance space is used to leave a gap for the outer expansion sleeve (41).

6. The motor shaft internal gear inserting tool according to claim 1, characterized in that: The tool sleeve (5) comprises an outer sleeve (51), an inner sleeve (52) and a matching body (53); the lower inner portion of the outer sleeve (51) is sleeved with a lower top (6); the top of the outer sleeve (51) is connected to the inner sleeve (52); the matching body (53) is also sleeved at the connection between the inner walls of the outer sleeve (51) and the inner sleeve (52); the lower inner portion of the matching body (53) is sleeved with the lower top (6); the upper inner portion of the matching body (53) is used in conjunction with the outer expansion sleeve (41).

7. The motor shaft internal gear inserting tool according to claim 6, characterized in that: The outer side of the outer expansion sleeve (41) is provided with a circle of L-shaped limiting grooves (411), and the inner side of the matching body (53) is provided with a circle of L-shaped limiting bosses (531). The L-shaped limiting grooves (411) and the L-shaped limiting bosses (531) can be mutually engaged.

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