Motor terminal press-in and wire cutting automatic assembly tool

By designing automated assembly fixtures for motor terminal pressing and cutting, the problems of low assembly efficiency and unstable quality of brushless motor stator coils were solved, achieving efficient and reliable automated production, improving product qualification rate and reducing labor costs.

CN224021603UActive Publication Date: 2026-03-20NANJING WATT ELECTRIC MOTORS CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The existing brushless motors have low stator coil assembly efficiency, low product qualification rate, unstable quality, high labor costs, and manual connection of terminals is prone to damage and hand injury.

Method used

Design an automated assembly fixture for motor terminal pressing and cutting, including an upper fixture, a lower fixture, and a fixture mold frame. Adopt an automated production process and use a cutting knife, terminal positioning sleeve, and terminal support block made of hardened steel to ensure concentricity and precise positioning, thereby realizing automated operation of terminal pressing and cutting.

Benefits of technology

It improved production efficiency, reduced labor requirements, ensured consistent and accurate product quality, reduced defect rates, and lowered labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a motor terminal press-in and wire cutting automatic assembly tooling, the tooling comprises an upper tooling, a lower tooling and a tooling mould frame, the lower tooling comprises a base, a positioning sleeve, a spring, a hexagon socket cap screw, a baffle plate, a positioning seat, a guide pillar, a wire cutter, a terminal positioning sleeve and a terminal supporting block, the guide pillar and the wire cutter are arranged on the base, the spring is arranged on the positioning sleeve, and the baffle plate is arranged on the positioning seat. The spring is installed on the guide column, the guide column is sleeved with the baffle to the spring, the positioning sleeve is installed below the baffle, the positioning seat is installed on the baffle, and the terminal positioning sleeve and the terminal supporting block are installed above the baffle. The hexagon socket cap screw penetrates through the positioning seat, the baffle and the positioning sleeve and is installed on the base. When in use, the motor product is sleeved on the positioning seat, the terminal is placed in the terminal positioning sleeve, the upper tool is pressed downwards, the terminal is pressed into the terminal clamping groove of the product, the exposed enameled wire of the product is pressed into the terminal groove, and the redundant enameled wire is cut off. The device is simple in structure and stable in performance, and the production efficiency and the product quality are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to motor assembly tooling technical field, especially a kind of motor terminal press-in and wire cutting automatic assembly tooling. BACKGROUND

[0002] The market demand of motor product is expanding, especially in electric tool, household appliance and other fields, brushless motor as core component, its production efficiency and quality directly affect product competitiveness. Many brushless motors of existing, stator coil assembly is assembled by simple tooling, assembly process is more, product qualified rate is low, quality is unstable, labor cost is high, and defective product cannot be disassembled for reuse.

[0003] The terminal is a piece of metal sheet sealed in insulating plastic, both ends have holes for inserting wires, and screws are used for tightening or loosening, such as two wires, sometimes need to be connected, sometimes need to be disconnected, at this time, the terminal can be used to connect them, and can be disconnected at any time, without welding or winding them together, very convenient and efficient, greatly improving production efficiency.

[0004] The existing brushless motor needs to manually butt joint terminal to complete the assembly of motor when assembling, and the force is not easy to control when butt joint of existing equipment, and the terminal is often damaged, and the method of manually inserting terminal is inefficient and easy to hurt hand.

[0005] Utility model patent CN 208596830 U discloses a kind of terminal inserting device for brushless motor assembly, by increasing the positioning seat with avoiding slot for fixing the socket of terminal, the plug needing to be inserted is placed in the middle of the card seat corresponding to avoiding slot, the upper end of card seat is connected with pressing plate by positioning column, under the action of the elastic force of first spring, the plug of terminal can be pressed by pressing plate, to prevent plug from falling off, guarantee the precision of insertion, but its assembly process is more, labor cost is high. Utility model content

[0006] The utility model aims at providing a kind of motor terminal press-in and wire cutting automatic assembly tooling, which can improve production efficiency, control the qualified rate of quality, and is convenient and reliable.

[0007] The technical solution for achieving the purpose of the utility model is as follows: a kind of motor terminal press-in and wire cutting automatic assembly tooling, including upper tooling, lower tooling and tooling mold frame, wherein the lower tooling includes base, positioning sleeve, spring, inner hexagonal cylindrical head screw, baffle, positioning seat, guide column, wire cutting knife, terminal positioning sleeve and terminal support block;

[0008] The guide post and the tangent are mounted on the base, the spring is mounted on the guide post, the baffle is inserted into the guide post and onto the spring, the positioning sleeve is installed in the positioning hole of the baffle, and the positioning seat is inserted from the tangent and the guide post and mounted on the baffle; the terminal positioning sleeve and the terminal support block are inserted from the tangent hole on the positioning seat and onto the baffle; the internal hexagonal head screw passes through the positioning seat, the baffle, and the positioning sleeve and is mounted on the base.

[0009] Furthermore, the base is provided with mounting holes for guide posts, hexagon socket head cap screws, and wire cutters, for mounting the guide posts, hexagon socket head cap screws, and wire cutters on the base.

[0010] Furthermore, the baffle plate has through holes at positions corresponding to the guide post, the internal hexagonal head screw, and the tangent, for the guide post, the positioning sleeve, and the tangent to pass through; the diameter of the through hole of the internal hexagonal head screw is larger than the diameter of the positioning sleeve.

[0011] Furthermore, the positioning seat has through holes at positions corresponding to the guide post, the hexagon socket head cap screw, and the wire cutter, for the guide post, the hexagon socket head cap screw, and the wire cutter to pass through; the diameter of the through hole for the hexagon socket head cap screw is larger than the diameter of the hexagon socket head cap screw but smaller than the diameter of the positioning sleeve; the through hole for the wire cutter can allow the wire cutter, the terminal positioning sleeve, and the terminal support block to pass through.

[0012] Furthermore, a cylindrical boss is provided at the center of the positioning seat.

[0013] Furthermore, the positioning sleeve is used to limit the movement when the upper tooling is pressed down.

[0014] Furthermore, the internal hexagonal head screw is used to limit the spring when it is pushed out after the upper tooling is pressed down.

[0015] Furthermore, the tooling frame is used to maintain the concentricity of the upper and lower tooling during assembly.

[0016] Furthermore, the brushless motor product is fitted onto the cylindrical boss of the positioning seat, and the terminal positioning sleeve is used to place the terminals of the brushless motor product; the upper tooling is used to press the terminals into the terminal slots of the brushless motor product, and also press the exposed enameled wires of the brushless motor product into the terminal slots; the wire cutter is used to cut off the excess enameled wires.

[0017] Furthermore, the tangent, terminal positioning sleeve, and terminal support block are all made of hardened steel.

[0018] Compared with the prior art, the significant advantages of this utility model are: (1) the adoption of an automated production process reduces the need for manual labor and improves production efficiency; (2) the adoption of tooling mold frame ensures the concentricity of the upper and lower tooling during assembly and ensures the consistency of product production; (3) the wire cutter, terminal positioning sleeve and terminal support block are made of hardened steel, which fits well with the product assembly, and can accurately position and cut the product, thus improving product quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an automatic assembly fixture for pressing and cutting motor terminals according to the present invention.

[0020] Figure 2 This is a schematic diagram of the automatic assembly fixture for pressing in and cutting the motor terminals of the brushless motor product in this utility model.

[0021] Figure 3 This is a schematic diagram of the lower tooling in this utility model.

[0022] Figure 4 This is a cross-sectional structural diagram of the lower tooling in this utility model.

[0023] Figure 5 This is an exploded structural diagram of the lower tooling in this utility model.

[0024] In the diagram: 1. Upper fixture; 2. Lower fixture; 3. Base; 4. Positioning sleeve; 5. Spring; 6. Socket head cap screw; 7. Baffle; 8. Positioning seat; 9. Guide post; 10. Wire cutter; 11. Terminal positioning sleeve; 12. Terminal support block; 13. Fixture mold frame; 14. Brushless motor product; 15. Enamelled wire; 16. Terminal slot; 17. Terminal. Detailed Implementation

[0025] This utility model provides an automatic assembly fixture for pressing and cutting motor terminals. It is characterized by including an upper fixture 1, a lower fixture 2 and a fixture mold frame 13, wherein the lower fixture 2 includes a base 3, a positioning sleeve 4, a spring 5, an internal hexagonal head screw 6, a baffle 7, a positioning seat 8, a guide post 9, a cutting knife 10, a terminal positioning sleeve 11 and a terminal support block 12.

[0026] The guide post 9 and the tangent 10 are mounted on the base 3. The spring 5 is mounted on the guide post 9. The baffle 7 is fitted onto the guide post 9 and the spring 5. The positioning sleeve 4 is installed in the positioning hole of the baffle 7. The positioning seat 8 is fitted onto the baffle 7 through the tangent 10 and the guide post 9. The terminal positioning sleeve 11 and the terminal support block 12 are inserted into the baffle 7 through the hole of the tangent 10 on the positioning seat 8. The internal hexagonal head screw 6 passes through the positioning seat 8, the baffle 7, and the positioning sleeve 4 and is mounted on the base 3.

[0027] Preferably, the base 3 is provided with mounting holes for guide posts 9, hexagon socket head cap screws 6, and wire cutters 10, for mounting guide posts 9, hexagon socket head cap screws 6, and wire cutters 10 on the base 3.

[0028] Preferably, the baffle 7 has through holes at positions corresponding to the guide post 9, the socket head cap screw 6, and the tangent 10, for the guide post 9, the positioning sleeve 4, and the tangent 10 to pass through; the diameter of the through hole of the socket head cap screw 6 is larger than the diameter of the positioning sleeve 4.

[0029] Preferably, the positioning seat 8 has through holes at positions corresponding to the guide post 9, the hexagon socket head cap screw 6, and the wire cutter 10, for the guide post 9, the hexagon socket head cap screw 6, and the wire cutter 10 to pass through; the diameter of the through hole of the hexagon socket head cap screw 6 is larger than the diameter of the hexagon socket head cap screw 6 and smaller than the diameter of the positioning sleeve 4; the through hole of the wire cutter 10 allows the wire cutter 10, the terminal positioning sleeve 11, and the terminal support block 12 to pass through.

[0030] Preferably, the positioning seat 8 has a cylindrical boss at its center.

[0031] Preferably, the positioning sleeve 4 is used to limit the movement when the upper tooling 1 is pressed down.

[0032] Preferably, the internal hexagonal head screw 6 is used to limit the spring 5 when it is pushed out after the upper tooling 1 is pressed down.

[0033] Preferably, the tooling frame 13 is used to maintain the concentricity of the upper tooling 1 and the lower tooling 2 during assembly.

[0034] Preferably, the brushless motor product 14 is mounted on the cylindrical boss of the positioning seat 8, and the terminal positioning sleeve 11 is used to place the terminal 17 of the brushless motor product 14; the upper tooling 1 is used to press the terminal 17 into the terminal slot 16 of the brushless motor product 14, and also press the exposed enameled wire 15 of the brushless motor product 14 into the terminal slot 16; the wire cutter 10 is used to cut off the excess enameled wire 15.

[0035] Preferably, the wire cutter 10, the terminal positioning sleeve 11, and the terminal support block 12 are all made of hardened steel.

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0037] Example

[0038] like Figure 1As shown, this utility model provides an automatic assembly fixture for pressing and cutting motor terminals, including an upper fixture 1, a lower fixture 2, and a fixture frame 13. The lower fixture 2 includes a base 3, a positioning sleeve 4, a spring 5, an internal hexagonal head screw 6, a baffle 7, a positioning seat 8, a guide post 9, a cutting knife 10, a terminal positioning sleeve 11, and a terminal support block 12.

[0039] like Figure 3 , 4 As shown in Figure 5, the guide post 9 and the tangent 10 are mounted on the base 3, the spring 5 is mounted on the guide post 9, the baffle 7 is fitted onto the guide post 9 and the spring 5, the positioning sleeve 4 is installed in the positioning hole of the baffle 7, and the positioning seat 8 is fitted onto the baffle 7 through the tangent 10 and the guide post 9; the terminal positioning sleeve 11 and the terminal support block 12 are inserted into the baffle 7 through the hole of the tangent 10 on the positioning seat 8; the internal hexagonal head screw 6 passes through the positioning seat 8, the baffle 7, and the positioning sleeve 4 and is mounted on the base 3.

[0040] As a specific example, the base 3 is provided with mounting holes for guide posts 9, hexagon socket head cap screws 6, and wire cutters 10, for mounting guide posts 9, hexagon socket head cap screws 6, and wire cutters 10 on the base 3.

[0041] As a specific example, the baffle 7 has through holes at positions corresponding to the guide post 9, the socket head cap screw 6, and the tangent 10, for the guide post 9, the positioning sleeve 4, and the tangent 10 to pass through; the diameter of the through hole of the socket head cap screw 6 is larger than the diameter of the positioning sleeve 4.

[0042] As a specific example, the positioning seat 8 has through holes at positions corresponding to the guide post 9, the hexagon socket head cap screw 6, and the wire cutter 10, for the guide post 9, the hexagon socket head cap screw 6, and the wire cutter 10 to pass through; the diameter of the through hole of the hexagon socket head cap screw 6 is larger than the diameter of the hexagon socket head cap screw 6, but smaller than the diameter of the positioning sleeve 4; the through hole of the wire cutter 10 allows the wire cutter 10, the terminal positioning sleeve 11, and the terminal support block 12 to pass through; the positioning seat 8 has a cylindrical boss at its center for placing the brushless motor product.

[0043] As a specific example, the positioning sleeve 4 is used to limit the position when the upper tooling 1 is pressed down, so as to facilitate control of the product pressing position.

[0044] As a specific example, the hex socket head cap screw 6 is used to limit the spring 5 when the upper tooling 1 is pressed down, so as to facilitate the removal of the pressed product.

[0045] As a specific example, the tooling frame 13 is used to ensure the concentricity of the upper tooling 1 and the lower tooling 2 during assembly, thereby ensuring the consistency of product production.

[0046] As a specific example, the wire cutter 10, terminal positioning sleeve 11, and terminal support block 12 are all made of hardened steel, which fits well with the product assembly. For brushless motor products, they can be accurately positioned and cut, are not easily worn, and can quickly and effectively press in the terminal and cut the wire.

[0047] As a specific example, such as Figure 2 As shown, the workflow of the automatic assembly fixture for pressing and cutting motor terminals is as follows:

[0048] Step 1: Place the brushless motor product 14 onto the cylindrical boss of the positioning seat 8;

[0049] Step 2: Place the terminal 17 of the brushless motor product 14 into the terminal positioning sleeve 11;

[0050] Step 3: Start the pneumatic compressor, press the upper fixture 1 down to the bottom, press the terminal 17 into the terminal slot 16 of the product, press the exposed enameled wire 15 of the product into the terminal slot 16, and cut off the excess enameled wire 15. The three assembly processes are completed simultaneously.

[0051] Step 4: After assembly, spring 5 pushes the brushless motor product 14 upward, removes the brushless motor product 14 and places it on the assembly line to continue assembling the next brushless motor product.

[0052] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An automatic assembly fixture for pressing and cutting motor terminals, characterized in that, It includes an upper tooling (1), a lower tooling (2) and a tooling mold frame (13), wherein the lower tooling (2) includes a base (3), a positioning sleeve (4), a spring (5), an internal hexagonal head screw (6), a baffle (7), a positioning seat (8), a guide post (9), a wire cutter (10), a terminal positioning sleeve (11) and a terminal support block (12); The guide post (9) and the tangent (10) are mounted on the base (3), the spring (5) is mounted on the guide post (9), the baffle (7) is fitted onto the guide post (9) and onto the spring (5), the positioning sleeve (4) is installed in the positioning hole of the baffle (7), the positioning seat (8) is fitted onto the baffle (7) from the tangent (10) and the guide post (9); the terminal positioning sleeve (11) and the terminal support block (12) are inserted into the baffle (7) from the tangent (10) hole on the positioning seat (8); the internal hexagonal head screw (6) passes through the positioning seat (8), the baffle (7), and the positioning sleeve (4) and is mounted on the base (3).

2. The automatic assembly fixture for pressing and cutting motor terminals according to claim 1, characterized in that, The base (3) is provided with mounting holes for guide posts (9), hexagon socket head cap screws (6), and wire cutters (10), which are used to install guide posts (9), hexagon socket head cap screws (6), and wire cutters (10) on the base (3).

3. The automatic assembly fixture for pressing and cutting motor terminals according to claim 1, characterized in that, The baffle (7) has through holes at positions corresponding to the guide post (9), the internal hexagonal head screw (6), and the tangent (10), for the guide post (9), the positioning sleeve (4), and the tangent (10) to pass through; the diameter of the through hole of the internal hexagonal head screw (6) is larger than the diameter of the positioning sleeve (4).

4. The automatic assembly fixture for pressing and cutting motor terminals according to claim 1, characterized in that, The positioning seat (8) has through holes at positions corresponding to the guide post (9), the internal hexagonal head screw (6), and the wire cutter (10), for the guide post (9), the internal hexagonal head screw (6), and the wire cutter (10) to pass through; the diameter of the through hole of the internal hexagonal head screw (6) is larger than the diameter of the internal hexagonal head screw (6) and smaller than the diameter of the positioning sleeve (4); the through hole of the wire cutter (10) can pass through the wire cutter (10), the terminal positioning sleeve (11), and the terminal support block (12).

5. The automatic assembly fixture for pressing and cutting motor terminals according to claim 1, characterized in that, The positioning seat (8) has a cylindrical boss at its center.

6. The automatic assembly fixture for pressing and cutting motor terminals according to claim 1, characterized in that, The positioning sleeve (4) is used to limit the position when the upper tooling (1) is pressed down.

7. The automatic assembly fixture for pressing and cutting motor terminals according to claim 1, characterized in that, The internal hexagonal head screw (6) is used to limit the spring (5) when it is pushed out after the upper tooling (1) is pressed down.

8. The automatic assembly fixture for pressing and cutting motor terminals according to claim 1, characterized in that, The tooling frame (13) is used to maintain the concentricity of the upper tooling (1) and the lower tooling (2) during assembly.

9. The automatic assembly fixture for pressing and cutting motor terminals according to claim 5, characterized in that, The brushless motor product (14) is fitted onto the cylindrical boss of the positioning seat (8). The terminal positioning sleeve (11) is used to place the terminal (17) of the brushless motor product (14). The upper tooling (1) is used to press the terminal (17) into the terminal slot (16) of the brushless motor product (14) and press the exposed enameled wire (15) of the brushless motor product (14) into the terminal slot (16). The wire cutter (10) is used to cut off the excess enameled wire (15).

10. The automatic assembly fixture for pressing and cutting motor terminals according to claim 1, characterized in that, The tangent (10), terminal positioning sleeve (11), and terminal support block (12) are all made of hardened steel.

Citation Information

Patent Citations

  • Brushless motor equipment is with binding post device of pegging graft

    CN208596830U