Motor pin punching tool for small motor
Patent Information
- Application Number
- CN202521286891.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-06-23
AI Technical Summary
[0003]本实用新型的目的是为了克服小型电机机构的轴与机构的连接没有专用打孔的夹具工装,一般使用的虎台钳夹住电机加工方式存在:无法保证钻头与电机轴的垂直度;接触面积小无法安全固定电机,甚至导致电机损坏,容易破坏电机的外观的缺点;通过合理的设计,提供一种小型电机的电机销打孔工装,本实用新的电机销打孔工装通过减速机座、底座上放置小型电机;通过电机齿轮夹具座的电机齿轮槽放置电机齿轮、齿轮轴套,能够确保小型电机机构的轴向水平放置;通过贯穿的电机座定位螺孔与电机座孔中穿入紧固螺栓进行固定,保证加工的稳定性,进而使钻床的钻头与电机轴的垂直度,能够精确的对小型电机的轴与齿轮轴套进行精确的打孔加工,孔加工中能够准确的电机轴插入,确保小型电机与电机齿轮的安装牢固稳定,提高小型电机机构产品的质量
[0008] Beneficial effects: This novel motor pin drilling fixture places a small motor on a reducer base and a base; the motor gear and gear bushing are placed in the motor gear slot of the motor gear fixture, ensuring the axial horizontal placement of the small motor mechanism; and the through-hole positioning screw in the motor base and the fastening bolt inserted into the motor base hole ensure processing stability. This also ensures the perpendicularity of the drill bit to the motor shaft, allowing for precise drilling of the small motor shaft and gear bushing. Accurate insertion of the motor shaft during hole processing ensures a firm and stable installation of the small motor and motor gear, improving the quality of the small motor mechanism product.
Smart Images

Figure CN224737740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling fixtures for small motors, specifically to a drilling fixture for motor pins in small motors. Background Technology
[0002] Currently, in conventionally manufactured motor mechanisms, the motor mechanism and transmission shaft are generally fixedly connected using keyways. However, in the manufacturing process of small motor mechanisms, the gear mounting device on the transmission shaft of the small motor is usually fixedly connected to the transmission shaft by a motor pin, making the gear at the output end of the motor mechanism and the transmission shaft a single unit. Due to the small size of the small motor shaft, there are no dedicated fixtures. Generally, a vise is used to clamp the motor and then a bench drill is used for drilling. However, this processing method has the following disadvantages: it cannot guarantee the perpendicularity of the drill bit to the motor shaft; the small contact area makes it difficult to securely fix the motor, easily damaging the appearance of the motor, affecting product quality, and even causing motor damage. In view of the above reasons, a motor pin drilling fixture for small motors is proposed. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the conventional vise method, which uses a vise to clamp the motor and overcome the lack of a dedicated drilling fixture for connecting the shaft and mechanism of a small motor. These shortcomings include: inability to guarantee the perpendicularity of the drill bit to the motor shaft; small contact area that cannot securely fix the motor, potentially leading to motor damage and affecting its appearance. This utility model provides a new motor pin drilling fixture for small motors. The small motor is placed on a reducer base or base; the motor gear and gear bushing are placed in the motor gear slot of the motor gear fixture, ensuring the axial horizontal placement of the small motor mechanism; and a through-hole positioning screw in the motor base is used to insert a fastening bolt, ensuring processing stability. This allows for precise drilling of the small motor shaft and gear bushing, ensuring accurate insertion of the motor shaft during drilling and guaranteeing a secure and stable installation of the small motor and gear, thus improving the quality of the small motor mechanism product.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: A motor pin drilling fixture for a small motor comprises: a motor clamping fixture, a base, a reducer base, a motor gear clamping fixture, a motor gear groove, a shaft seat, a locating pin hole machining position, a gear position, a motor base locating screw hole, a small motor, a motor reducer, a motor base, a motor base hole, a motor gear, a gear bushing, and a locating pin hole; the motor clamping fixture has a base at its bottom, a motor gear clamping fixture is provided at one end of the base, and a reducer base is provided on a platform on one side of the motor gear clamping fixture; a motor gear groove is reserved on one side of the upper part of the motor gear clamping fixture, a motor hole is reserved on one side of the center of the motor gear groove, a pair of shaft seats are provided at the opening of the motor hole of the motor gear groove, a locating pin hole machining position is reserved between the pair of shaft seats, a gear position is reserved on the inner side of the shaft seats, and a pair of motor base locating screw holes are provided on both sides of the motor hole of the motor gear groove.
[0005] A small motor is mounted on the base, and a reducer is mounted in front of the small motor. A motor gear is mounted on the output shaft of the reducer, and the motor gear is a bevel gear. A gear bushing is mounted on the output shaft of the reducer, and a locating pin hole is set on the gear bushing. The base, reducer base, and motor gear slot are coaxially aligned. A motor base is mounted at the front end of the reducer, and a pair of motor base holes are reserved symmetrically on the two motor bases.
[0006] A small motor is set at the center of the base. The gear station is used to set the motor gear, and the shaft seat is used to set the gear bushing. A pair of motor seat holes are set with a pair of motor seat positioning screw holes. Fastening bolts are set in the pair of motor seat holes and the pair of motor seat positioning screw holes respectively. The pair of motor seat holes and the pair of motor seat positioning screw holes are used to position and fix the small motor.
[0007] The positioning pin hole is set above the machining position and the positioning pin hole is set with a corresponding drill bit. The positioning pin hole is used for machining the through-hole between the gear bushing and the output shaft. The through-hole is used for inserting and fixing the motor pin.
[0008] Beneficial effects: This novel motor pin drilling fixture places a small motor on a reducer base and a base; the motor gear and gear bushing are placed in the motor gear slot of the motor gear fixture, ensuring the axial horizontal placement of the small motor mechanism; and the through-hole positioning screw in the motor base and the fastening bolt inserted into the motor base hole ensure processing stability. This also ensures the perpendicularity of the drill bit to the motor shaft, allowing for precise drilling of the small motor shaft and gear bushing. Accurate insertion of the motor shaft during hole processing ensures a firm and stable installation of the small motor and motor gear, improving the quality of the small motor mechanism product. Attached Figure Description
[0009] The present invention will be further described below with reference to the accompanying drawings:
[0010] Figure 1 This is a top-view structural diagram of the final assembly.
[0011] Figure 2 yes Figure 1 Schematic diagram of the end face structure;
[0012] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure;
[0013] Figure 4 This is a schematic diagram of the structure of a small motor workpiece;
[0014] Figure 5 yes Figure 1 Schematic diagram of the overall assembly and clamping configuration;
[0015] Figure 1 , 2 1, 2, 3, 4, 5: Motor fixture 1, base 2, reducer base 3, motor gear fixture 4, motor gear groove 5, shaft seat 5-1, locating pin hole machining position 5-2, gear station 5-3, motor seat locating screw hole 6, small motor 7, motor reducer 8, motor seat 9, motor seat hole 9-1, motor gear 10, gear bushing 11, locating pin hole 12. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0017] The motor fixture 1 has a base 2 at the bottom, a motor gear fixture seat 4 at one end of the base 2, and a reducer seat 3 on the table on one side of the motor gear fixture seat 4. A motor gear groove 5 is reserved on one side of the upper part of the motor gear fixture seat 4, a motor hole is reserved on one side of the center of the motor gear groove 5, a pair of shaft seats 5-1 are set at the motor hole opening of the motor gear groove 5, a positioning pin hole machining position 5-2 is reserved between the pair of shaft seats 5-1, a gear position 5-3 is reserved on the inner side of the shaft seat 5-1, and a pair of motor seat positioning screw holes 6 are set on both sides of the motor hole of the motor gear groove 5.
[0018] A small motor 7 is mounted on the base 2. A reducer 8 is mounted in front of the small motor 7. A motor gear 10 is mounted on the output shaft end of the reducer 8. The motor gear 10 is a bevel gear. A gear sleeve 11 is mounted on the output shaft end of the reducer 8. A locating pin hole 12 is set on the gear sleeve 11. The base 2, the reducer base 3, and the motor gear groove 5 are coaxially arranged. A motor base 9 is mounted at the front end of the reducer 8. Two pairs of motor base holes 9-1 are symmetrically reserved on the motor base 9.
[0019] A small motor 7 is set at the center of the base 2. The gear station 5-3 is used to set the motor gear 10, and the shaft seat 5-1 is used to set the gear bushing 11. A pair of motor seat holes 9-1 on the motor seat 9 are set to a pair of motor seat positioning screw holes 6. Fastening bolts are set in the pair of motor seat holes 9-1 and the pair of motor seat positioning screw holes 6 respectively. The pair of motor seat holes 9-1 and the pair of motor seat positioning screw holes 6 are used to position and fix the small motor 7.
[0020] The positioning pin hole is set above the machining position 5-2, corresponding to the positioning pin hole 12. The positioning pin hole 12 is set with a drill bit. The positioning pin hole 12 is used for machining the through hole between the gear bushing 11 and the output shaft. The through hole is used for inserting and fixing the motor pin.
Claims
1. A tooling for drilling holes in the motor pins of a small motor, comprising: a motor clamping tooling (1), a base (2), a reducer base (3), a motor gear clamping tooling (4), a motor gear groove (5), a shaft seat (5-1), a locating pin hole machining position (5-2), a gear machining position (5-3), a motor seat locating screw hole (6), a small motor (7), a reducer (8), a motor seat (9), a motor seat hole (9-1), a motor gear (10), a gear bushing (11), and a locating pin hole (12); characterized in that: The motor fixture (1) has a base (2) at the bottom, a motor gear fixture seat (4) at one end of the base (2), and a reducer seat (3) on one side of the table of the motor gear fixture seat (4). A motor gear groove (5) is reserved on one side of the upper part of the motor gear fixture seat (4), and a motor hole is reserved on one side of the center of the motor gear groove (5). A pair of bearing seats (5-1) are set at the motor hole opening of the motor gear groove (5). A positioning pin hole machining position (5-2) is reserved between the pair of bearing seats (5-1). A gear position (5-3) is reserved on the inner side of the bearing seat (5-1). A pair of motor seat positioning screw holes (6) are set on both sides of the motor hole of the motor gear groove (5).
2. The motor pin punching tooling for a small motor of claim 1, wherein: A small motor (7) is installed on the base (2), a reducer (8) is installed in front of the small motor (7), a motor gear (10) is installed at the output shaft end of the reducer (8), and the motor gear (10) is a bevel gear; a gear bushing (11) is installed on the output shaft end of the reducer (8), and a positioning pin hole (12) is installed on the gear bushing (11); the base (2), the reducer base (3), and the motor gear groove (5) are coaxially arranged; a motor base (9) is installed at the front end of the reducer (8), and a pair of motor base holes (9-1) are reserved symmetrically in the motor base (9).
3. The motor pin punching tooling for small motors of claim 1, wherein: A small motor (7) is set at the center of the base (2). The gear station (5-3) is used to set the motor gear (10), and the shaft seat (5-1) is used to set the gear bushing (11). A pair of motor seat holes (9-1) of the motor seat (9) are set with a pair of motor seat positioning screw holes (6). Fastening bolts are set in the pair of motor seat holes (9-1) and the pair of motor seat positioning screw holes (6). The pair of motor seat holes (9-1) and the pair of motor seat positioning screw holes (6) are used to position and fix the small motor (7).
4. The motor pin punching tooling for small motors of claim 1, wherein: The positioning pin hole (5-2) is set above the positioning pin hole (12), the positioning pin hole (12) is set with the drill bit, the positioning pin hole (12) is used for machining the through hole between the gear bushing (11) and the output shaft, and the through hole is used for the insertion and fixing of the motor pin.