Evaporative fan brush holder assembly spring automatic assembly tool
By designing an automatic assembly fixture for the evaporator fan brush holder assembly springs and utilizing a cylinder-driven mechanism, the problems of time-consuming and labor-intensive manual assembly and difficulty in quality control were solved, achieving automated assembly and stable quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SHUANGHANG ELECTRICAL CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing technology, the spring assembly process of the evaporator fan brush holder assembly is time-consuming and labor-intensive, and the manual operation makes it difficult to control the quality.
Design an automatic assembly fixture for the springs of an evaporator fan brush holder assembly, including a base, a positioning seat, a clamping mechanism, a spring assembly mechanism, a spring limiting mechanism, and a brush box bending mechanism. The mechanism works together through a cylinder to achieve automated assembly and bending of the springs.
Automated assembly has been achieved, which has improved assembly efficiency, ensured quality stability, and avoided errors caused by manual operation.
Smart Images

Figure CN224488289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporator fan assembly technology, and in particular to an automatic assembly fixture for the springs of the evaporator fan brush holder assembly. Background Technology
[0002] The evaporator fan for automotive air conditioning is a key device responsible for the exchange of hot and cold air inside the car. It consists of an impeller, upper volute, lower volute, and motor. The brush holder assembly is an important component of the motor, and the production quality of the brush holder assembly directly affects the quality and stability of the motor and even the entire fan.
[0003] During the assembly of the evaporator fan brush holder assembly, two springs need to be pressed into the brush boxes on both sides simultaneously, and the ends of the brush boxes need to be bent and fixed. Currently, this process is mostly done manually, requiring the springs to be inserted twice and the ends of the brush boxes to be bent twice. This is not only time-consuming and labor-intensive, but manual operation is also prone to quality fluctuations, making it difficult to effectively control the quality of the processing.
[0004] Therefore, designing a tooling capable of automated assembly to solve the above problems is of great practical significance. Utility Model Content
[0005] To address the problems of time-consuming, labor-intensive, and difficult-to-control quality issues associated with manual assembly of evaporator fan brush holder springs in existing technologies, this utility model provides an automated assembly fixture for evaporator fan brush holder springs, which automates spring assembly and brush box bending, thereby improving production efficiency and quality stability.
[0006] To achieve the above and other related objectives, the technical solution provided by this utility model is: an automatic assembly fixture for the springs of an evaporator fan brush holder assembly, comprising:
[0007] Base;
[0008] A positioning seat, which is fixed on the base, is used to position the brush holder assembly;
[0009] A clamping mechanism, wherein the brush holder clamping mechanism is fixed on the base, is used to clamp the brush holder assembly onto the positioning seat;
[0010] A spring assembly mechanism is fixed on the base and located on the left and right sides of the positioning seat, and is used to push the spring into the brush boxes on both sides of the brush holder assembly.
[0011] A spring limiting mechanism is fixed on the base and located on the left and right sides of the positioning seat to limit the springs that are inserted into the brush boxes on both sides of the brush holder assembly from popping out.
[0012] A brush box bending mechanism is fixed on the base and located on the left and right sides of the positioning seat, and is used to bend the ends of the brush boxes on both sides of the brush holder assembly.
[0013] The preferred technical solution is as follows: the pressing mechanism consists of a bracket, a cylinder and a pressing head. The bracket is fixed on the base, the cylinder is fixed on the bracket, and the pressing head is located directly above the positioning seat and is driven to move up and down by the cylinder.
[0014] The preferred technical solution is as follows: the spring assembly mechanism consists of two sets of brackets, two sets of cylinders, and two sets of positioning pins. The two sets of brackets are fixed on the base and located on the left and right sides of the positioning seat. The two sets of cylinders are fixed on the two sets of brackets one-to-one and drive the corresponding positioning pin to reciprocate along the direction of inserting the brush holder assembly into the brush box on both sides. The positioning pin is used to assemble the spring.
[0015] The preferred technical solution is as follows: the spring limiting mechanism consists of two sets of brackets, two sets of cylinders, and two sets of limiting members. The two sets of brackets are fixed on the base and located on the left and right sides of the positioning seat. The two sets of cylinders are fixed on the two sets of brackets one-to-one and drive the corresponding limiting member to reciprocate along the direction of inserting the brush holder assembly into the brush box on both sides. The limiting member is used to limit the end of the spring.
[0016] The preferred technical solution is as follows: the brush box bending mechanism consists of two sets of brackets, two sets of cylinders, and two sets of pressure heads. The two sets of brackets are fixed on the base and located on the left and right sides of the positioning seat. The two sets of cylinders are fixed on the two sets of brackets one by one and drive the corresponding pressure head to reciprocate along the direction of bending the ends of the brush box on both sides of the brush holder assembly. The pressure head is used to bend the ends of the brush box.
[0017] A preferred technical solution is that the bottom side of the base is provided with foot pads.
[0018] Due to the application of the above technical solution, the beneficial effects of this utility model are as follows:
[0019] Automated assembly: Through the coordinated action of various mechanisms, the positioning, clamping, spring assembly, spring limiting, and brush box bending of the brush holder components can be completed automatically, eliminating the need for manual step-by-step operation and greatly improving assembly efficiency.
[0020] Ensuring assembly quality: avoiding errors caused by manual operation, ensuring precise movement of each mechanism, consistent spring assembly positions and brush box bending angles, and effectively controlling the quality stability of the processing process.
[0021] Simple and reliable structure: Each mechanism is fixed to the base by a bracket, and the driving component uses a cylinder, which makes the operation stable and easy to maintain and debug. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the assembly tooling involved in this utility model. Detailed Implementation
[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0024] Please see Figure 1 It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example:
[0027] like Figure 1 As shown, according to a general technical concept of this utility model, an automatic assembly fixture for the springs of an evaporator fan brush holder assembly is provided, comprising:
[0028] Base 1;
[0029] Positioning seat 2, fixed on base 1, is used to position brush holder assembly 100;
[0030] The clamping mechanism 3 is fixed on the base 1 and is used to clamp the brush holder assembly 100 onto the positioning seat 2.
[0031] Spring assembly mechanism 4 is fixed on the base 1 and located on the left and right sides of the positioning seat 2, and is used to push the spring 200 into the brush box on both sides of the brush holder assembly 100.
[0032] Spring limiting mechanism 5 is fixed on the base 1 and located on the left and right sides of the positioning seat 2. It is used to limit the springs 200 that are pushed into the brush boxes on both sides of the brush holder assembly 100 from popping out.
[0033] The brush box bending mechanism 6 is fixed on the base 1 and located on the left and right sides of the positioning seat 2. It is used to bend the ends of the brush boxes on both sides of the brush holder assembly 100.
[0034] like Figure 1 As shown, in an exemplary embodiment of this utility model, the pressing mechanism 3 consists of a bracket 31, a cylinder 32, and a pressing head 33. The bracket 31 is fixed on the base 1, the cylinder 32 is fixed on the bracket 31, and the pressing head 33 is located directly above the positioning seat 2 and is driven to move up and down by the cylinder 32.
[0035] like Figure 1 As shown, in an exemplary embodiment of this utility model, the spring assembly mechanism 4 consists of two sets of brackets 41, two sets of cylinders 42, and two sets of positioning pins 43. The two sets of brackets 41 are fixed on the base 1 and located on the left and right sides of the positioning seat 2. The two sets of cylinders 42 are fixed on the two sets of brackets 41 one by one, and each drives the corresponding positioning pin 43 to reciprocate along the direction of inserting the brush box on both sides of the brush holder assembly 100. The positioning pin 43 is used to assemble the spring 200.
[0036] like Figure 1 As shown, in an exemplary embodiment of this utility model, the spring limiting mechanism 5 consists of two sets of brackets 51, two sets of cylinders 52, and two sets of limiting members 53. The two sets of brackets 51 are fixed on the base 1 and located on the left and right sides of the positioning seat 2. The two sets of cylinders 52 are fixed on the two sets of brackets 51 one by one, and each drives the corresponding limiting member 53 to reciprocate along the direction of inserting the brush box on both sides of the brush holder assembly 100. The limiting member 53 is used to limit the end of the spring 200.
[0037] like Figure 1As shown, in an exemplary embodiment of this utility model, the brush box bending mechanism 6 consists of two sets of brackets 61, two sets of cylinders 62, and two sets of pressure heads 63. The two sets of brackets 61 are fixed on the base 1 and located on the left and right sides of the positioning seat 2. The two sets of cylinders 62 are fixed on the two sets of brackets 61 one by one, and each drives the corresponding pressure head 63 to reciprocate along the direction of bending the ends of the brush box on both sides of the brush holder assembly 100. The pressure head 63 is used to bend the ends of the brush box.
[0038] like Figure 1 As shown, in an exemplary embodiment of this utility model, the bottom side of the base 1 is provided with a foot pad 7.
[0039] The working process of this tooling is as follows:
[0040] Place the brush holder assembly 100 on the positioning seat 2 to complete the positioning;
[0041] Cylinder 32 drives the pressure head 33 to move down, pressing the brush holder assembly 100 onto the positioning seat 2;
[0042] The two sets of cylinders 42 drive the corresponding positioning pins 43 (with springs 200 sleeved on them) to move towards the brush box, pushing the springs 200 into the brush boxes on both sides;
[0043] Two sets of cylinders 52 drive the corresponding limiting parts 53 to extend and limit the end of the spring 200;
[0044] The two sets of cylinders 42 respectively drive the corresponding positioning pins 43 to reset;
[0045] Two sets of cylinders 62 drive the corresponding pressure head 63 to move towards the end of the brush box, bending the end of the brush box, and then the limiting part 53 and the pressure head 63 are reset.
[0046] Cylinder 32 drives the pressure head 33 to move upward, removing the assembled brush holder assembly 100 and completing one assembly cycle.
[0047] Therefore, this utility model has the following advantages:
[0048] Automated assembly: Through the coordinated action of various mechanisms, the positioning, clamping, spring assembly, spring limiting, and brush box bending of the brush holder components can be completed automatically, eliminating the need for manual step-by-step operation and greatly improving assembly efficiency.
[0049] Ensuring assembly quality: avoiding errors caused by manual operation, ensuring precise movement of each mechanism, consistent spring assembly positions and brush box bending angles, and effectively controlling the quality stability of the processing process.
[0050] Simple and reliable structure: Each mechanism is fixed to the base by a bracket, and the driving component uses a cylinder, which makes the operation stable and easy to maintain and debug.
[0051] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. An automatic assembly fixture for the springs of an evaporator fan brush holder assembly, characterized in that, include: Base; A positioning seat, which is fixed on the base, is used to position the brush holder assembly; A clamping mechanism, wherein the brush holder clamping mechanism is fixed on the base, is used to clamp the brush holder assembly onto the positioning seat; A spring assembly mechanism is fixed on the base and located on the left and right sides of the positioning seat, and is used to push the spring into the brush boxes on both sides of the brush holder assembly. A spring limiting mechanism is fixed on the base and located on the left and right sides of the positioning seat to limit the springs that are inserted into the brush boxes on both sides of the brush holder assembly from popping out. A brush box bending mechanism is fixed on the base and located on the left and right sides of the positioning seat, and is used to bend the ends of the brush boxes on both sides of the brush holder assembly.
2. The automatic assembly fixture for the springs of an evaporator fan brush holder assembly according to claim 1, characterized in that: The pressing mechanism consists of a bracket, a cylinder, and a pressing head. The bracket is fixed on the base, the cylinder is fixed on the bracket, and the pressing head is located directly above the positioning seat and is driven to move up and down by the cylinder.
3. The automatic assembly fixture for the springs of the evaporator fan brush holder assembly according to claim 1, characterized in that: The spring assembly mechanism consists of two sets of brackets, two sets of cylinders, and two sets of positioning pins. The two sets of brackets are fixed on the base and located on the left and right sides of the positioning seat. The two sets of cylinders are fixed on the two sets of brackets respectively, and each cylinder drives the corresponding positioning pin to reciprocate along the direction of inserting the brush box on both sides of the brush holder assembly. The positioning pin is used to assemble the spring.
4. The automatic assembly fixture for the springs of an evaporator fan brush holder assembly according to claim 1, characterized in that: The spring limiting mechanism consists of two sets of brackets, two sets of cylinders, and two sets of limiting members. The two sets of brackets are fixed on the base and located on the left and right sides of the positioning seat. The two sets of cylinders are fixed on the two sets of brackets one-to-one and drive the corresponding limiting members to reciprocate along the direction of inserting the brush holder assembly into the brush boxes on both sides. The limiting members are used to limit the ends of the spring.
5. The automatic assembly fixture for the springs of an evaporator fan brush holder assembly according to claim 1, characterized in that: The brush box bending mechanism consists of two sets of brackets, two sets of cylinders, and two sets of pressure heads. The two sets of brackets are fixed on the base and located on the left and right sides of the positioning seat. The two sets of cylinders are fixed on the two sets of brackets respectively and drive the corresponding pressure head to reciprocate along the direction of bending the ends of the brush box on both sides of the brush holder assembly. The pressure head is used to bend the ends of the brush box.
6. The automatic assembly fixture for the springs of an evaporator fan brush holder assembly according to claim 1, characterized in that: The base is equipped with foot pads on its bottom side.