Sunshade curtain motor carbon brush holder assembly elastic force detection device

Abstract

The utility model relates to the field of motor component testing, in particular to a sunshade curtain motor carbon brush holder assembly elastic force detection device which comprises a base, a horizontal sliding table and a vertical sliding table which are perpendicular to each other are arranged on the base, a tool clamp is connected to the horizontal sliding table in a sliding mode, a force measurement tool assembly is connected to the tool clamp, and the force measurement tool assembly is connected to the vertical sliding table. The vertical sliding table is connected with a clamping assembly in a sliding mode, and the clamping assembly is connected with a dynamometer. According to the utility model, elastic force detection can be carried out on the spring assembly in the center hole of the sunshade motor carbon brush holder assembly, stability is good, errors are low, the overall structure is simple, and manufacturing input cost is low.

Description

Technical Field

[0001] This utility model relates to the field of motor component testing, and in particular to a device for testing the elasticity of a carbon brush holder assembly for a sunshade motor. Background Technology

[0002] The sunshade motor brush holder assembly has a spring component inside its central hole. After the product rolls off the production line, the spring component needs to be tested for spring force to ensure that the product meets the expected parameter standards. Currently, the spring force test for the sunshade motor brush holder assembly is mainly conducted by an operator using a handheld tension meter to test the spring force, which results in a relatively large error in stability testing.

[0003] Chinese patent application CN111458063A discloses a U-shaped spring clip elasticity testing system and method. The U-shaped spring clip elasticity testing system includes: a testing fixture comprising a pressure block for applying pressure to the U-shaped clip, a pad for positioning the deformation size of the U-shaped clip, and a receiving platform. The receiving platform has a horizontal groove for accommodating the U-shaped clip and inserting the pressure block, and a vertical groove for inserting the pad into the opening of the U-shaped clip; the horizontal and vertical grooves are interconnected. A hand-operated press is used to apply pressure to the pressure block. A detection component connected to the hand-operated press is used to detect the elasticity of the U-shaped clip. While the above-mentioned U-shaped spring clip elasticity testing system has a simple structure and low investment, it cannot test spring assemblies radially from the center hole of components. Utility Model Content

[0004] To address the problem that current elastic force testing fixtures cannot test radial spring assemblies inside holes of parts, this utility model discloses a fixture capable of testing the elastic force of radial spring assemblies inside holes of parts, achieving the standard for elastic force testing of spring assemblies, while having a simple structure and low manufacturing cost.

[0005] To achieve the above-mentioned technical effects, this utility model proposes:

[0006] A device for detecting the elasticity of a carbon brush holder assembly for a sunshade motor includes a base, on which a horizontal slide and a vertical slide are provided perpendicularly. A tooling fixture is slidably connected to the horizontal slide, and a force measuring tooling assembly is connected to the tooling fixture. A clamping assembly is slidably connected to the vertical slide, and a force gauge is connected to the clamping assembly.

[0007] In the utility model of the elasticity testing device for the carbon brush holder assembly of a sunshade motor, a tooling fixture is slidably connected to a horizontal slide table, and a force gauge is slidably connected to a vertical slide table. The horizontal and vertical slide tables are perpendicular to each other, and the sliding direction of the tooling fixture is perpendicular to the sliding direction of the force gauge. A force measuring tooling assembly is set on the tooling fixture, and a force gauge is set on the clamping assembly. The force measuring tooling assembly achieves two degrees of freedom of movement in the left and right directions on the horizontal slide table, and the force gauge achieves two degrees of freedom of movement in the up and down directions on the vertical slide table. This device can perform elasticity testing on the carbon brush holder assembly of the sunshade motor on the force measuring tooling assembly.

[0008] The force-measuring fixture assembly has a placement groove, with at least three aligned centering holes on the bottom surface of the groove. The inner side of the groove has several positioning slots, and the force-measuring fixture assembly has at least one reserved slot on its side. The sunshade motor brush holder assembly is placed in the placement groove. The centering holes are used for alignment between the force gauge and the force-measuring fixture assembly. The positioning slots engage with the protruding ribs on the side of the sunshade motor brush holder assembly to position it. The reserved slot accommodates the protruding parts of the sunshade motor brush holder assembly.

[0009] The force-measuring fixture assembly also includes a positioning block, which passes through the centering hole. A limiting block is provided on the side of the vertical slide, located between the base and the clamping assembly. The positioning block is a stepped shaft, with its smaller diameter section passing through the centering hole and its larger diameter section contacting the bottom surface of the placement groove. The positioning block, in conjunction with the limiting block, limits the maximum descent height of the clamping assembly.

[0010] The force gauge has a force measuring rod, the end of which is spherical, and the outer diameter of the end of the force measuring rod is equal to the inner diameter of the centering hole.

[0011] The tooling fixture has a horizontal sliding mechanism and a locking mechanism. The sliding direction of the horizontal sliding mechanism is perpendicular to the sliding direction of the tooling fixture, and the sliding direction of the horizontal sliding mechanism is perpendicular to the sliding direction of the clamping assembly. The horizontal sliding mechanism enables the tooling fixture to move in two degrees of freedom, and is used for fine-tuning during the alignment process between the force gauge and the force measuring tooling assembly; the locking mechanism is used to fix the horizontal sliding mechanism.

[0012] The horizontal slide is equipped with a horizontal scale, and the tooling fixture is equipped with a vernier caliper, with the vernier caliper corresponding to the horizontal scale.

[0013] Both the horizontal slide and the vertical slide have lead screws and limit rods.

[0014] Both the horizontal slide and the vertical slide have handwheels and slide locking rods.

[0015] The beneficial effects of this utility model are:

[0016] This invention enables the detection of the elasticity of the radial spring assembly inside the center hole of the carbon brush holder assembly of the sunshade motor. It has good stability and low error, meeting the standard of the elasticity detection step after the carbon brush holder assembly of the sunshade motor is off the production line. At the same time, the overall structure is simple and the manufacturing cost is low. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the elasticity testing device for the carbon brush holder assembly of the sunshade curtain motor.

[0018] Figure 2 This is a front view of the overall structure of the elasticity testing device for the carbon brush holder assembly of the sunshade curtain motor.

[0019] Figure 3 This is a schematic diagram of the force measuring tooling assembly in Example 1.

[0020] Figure 4 This is a schematic diagram of the carbon brush holder assembly for a sunshade motor.

[0021] Figure 5 This is a schematic diagram of the force measuring tooling assembly in Example 2.

[0022] Icon labels:

[0023] 1. Base; 2. Horizontal slide; 3. Vertical slide; 4. Lead screw; 5. Limit rod; 6. Handwheel; 7. Slide locking rod; 8. Sunshade motor brush holder assembly;

[0024] 21. Tooling fixture; 22. Force measuring tooling assembly; 23. Horizontal scale; 31. Clamping assembly; 32. Force gauge; 33. Force measuring rod; 34. Limiting block; 81. Spring assembly; 82. Protruding part; 83. Rib;

[0025] 211. Horizontal sliding mechanism; 212. Locking mechanism; 213. Vernier caliper; 221. Placement groove; 222. Centering hole; 223. Positioning groove; 224. Reserved groove; 225. First reserved groove; 226. Second reserved groove; 227. Positioning block; Detailed Implementation

[0026] 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.

[0027] This utility model provides a device for detecting the elasticity of a carbon brush holder assembly in a sunshade motor. The preferred embodiment of the device for detecting the elasticity of a carbon brush holder assembly in a sunshade motor is described below.

[0028] Example 1

[0029] like Figure 1 and Figure 2 As shown, the elasticity testing fixture for the carbon brush holder assembly 8 of the sunshade motor in this embodiment includes a base 1. The base 1 has a horizontal slide 2 and a vertical slide 3 that are perpendicular to each other. A fixture fixture 21 is slidably connected to the horizontal slide 2, and a force measuring fixture assembly 22 is connected to the fixture fixture 21. A clamping assembly 31 is slidably connected to the vertical slide 3, and a force gauge 32 is connected to the clamping assembly 31. The base 1 includes a bearing panel and four support legs. The top surface of the base 1 has screw holes for mounting the horizontal slide 2 and the vertical slide 3. The horizontal slide 2 and the vertical slide 3 are fastened to the base 1 with bolts. The horizontal slide 2 is set along one long side of the base 1, and the vertical slide 3 is set on the other side of this long side of the base 1. The vertical slide 3 is vertically set, and the end face of the vertical slide 3 connected to the base 1 rests only against the horizontal slide 2. The position of the vertical slide 3 corresponds to the midpoint of the length direction of the horizontal slide 2, and the length direction of the horizontal slide 2 is perpendicular to the length direction of the vertical slide 3. The horizontal slide table 2 is equipped with a lead screw 4 and two limiting rods 5. The lead screw 4 and the limiting rods 5 are arranged in parallel and on the same plane. The lead screw 4 is located in the middle of the two limiting rods 5, and the two limiting rods 5 are equidistant from the lead screw 4. The tooling fixture 21 is set on the horizontal slide table 2. The tooling fixture 21 is slidably connected to the limiting rods 5 and threadedly connected to the lead screw 4. The tooling fixture 21 moves along the length of the horizontal slide table 2 by rotating the lead screw 4. A handwheel 6 and a slide table locking rod 7 are provided at one end of the horizontal slide table 2. The handwheel 6 is fixedly connected to the lead screw 4. By rotating the handwheel 6, the lead screw 4 is rotated, realizing the horizontal movement of the tooling fixture 21. The slide table locking rod 7 is used to lock the handwheel 6 and fix the position of the tooling fixture 21. The vertical slide 3 is similar in structure to the horizontal slide 2, except that its overall length is relatively longer, and the lengths of the lead screw 4 and the limiting rod 5 are also relatively longer. A clamping assembly 31 is slidably connected to the vertical slide 3. The clamping assembly 31 is slidably connected to the limiting rod 5 on the vertical slide 3 and threadedly connected to the lead screw 4 on the vertical slide 3. A handwheel 6 and a slide locking rod 7 are provided at the end of the vertical slide 3 away from the base 1. By turning the handle, the lead screw 4 is rotated to realize the vertical movement of the clamping assembly 31. The slide locking rod 7 is used to lock the handwheel 6 and fix the position of the clamping assembly 31.

[0030] like Figure 1 and Figure 3As shown, the tooling fixture 21 is equipped with a force measuring tooling assembly 22. The force measuring tooling assembly 22 is cylindrical with a groove in the middle. This groove is a placement groove 221. In use, the carbon brush holder assembly 8 of the sunshade motor is placed in the placement groove 221. In this embodiment, three alignment holes 222 are arranged in a straight line on the bottom surface of the placement groove 221. The middle alignment hole 222 is located at the center of the bottom surface of the placement groove 221. The distance between two adjacent alignment holes 222 is 5mm. The straight line formed by the three alignment holes 222 is parallel to the sliding direction of the tooling fixture 21. A positioning block 227 is also provided on the ground of the placement groove 221. A stepped shaft is located outside the positioning block 227. The outer diameter of the small diameter section is equal to the inner diameter of the alignment hole 222. The positioning block 227 is used to limit the clamping assembly 3 after the alignment step. 1. Maximum descent height; In this embodiment, a reserved slot 224 is provided on the side of the force measuring tool assembly 22. The reserved slot 224 is set according to the structure of the sunshade motor carbon brush holder assembly 8. After the sunshade motor carbon brush holder assembly 8 is placed in the placement groove 221, a part of the sunshade motor carbon brush holder assembly 8 is placed in the reserved slot 224. The reserved slot 224 restricts the rotation of the sunshade motor carbon brush holder assembly 8 in the placement groove 221. Nine positioning slots 223 are also provided on the inner side of the anti-recession groove. The positioning slots 223 are vertically opened along the inner side of the anti-recession groove. The opening of the positioning slots 223 is set according to the outer side of the sunshade motor carbon brush holder assembly 8. After the sunshade motor carbon brush holder assembly 8 is placed in the anti-recession groove, the reserved slot 224 and the positioning slots 223 position the sunshade motor carbon brush holder assembly 8.

[0031] like Figure 1 and Figure 2 As shown, the clamping component 31 has a ring-shaped part that performs the clamping function. It is fastened with bolts to clamp the object in the middle. The clamping component 31 is equipped with a force gauge 32, and the force gauge 32 is equipped with a force measuring rod 33. The force measuring rod 33 is located on the end face of the force gauge 32 near the tooling fixture 21. The force measuring rod 33 is vertically arranged, and the vertical position of the force measuring rod 33 corresponds to the centering hole 222. When the clamping component 31 slides down along the vertical slide 3, the top of the force measuring rod 33 can extend out of the centering hole 222. In this embodiment, the force gauge 32 is a tension gauge.

[0032] like Figure 1 and Figure 2As shown, the tooling fixture 21 has a horizontal sliding mechanism 211 and a locking mechanism 212. The sliding direction of the horizontal sliding mechanism 211 is perpendicular to the sliding direction of the tooling fixture 21 and the sliding direction of the clamping assembly 31. The horizontal sliding mechanism 211 includes an adjusting rod. By rotating the adjusting rod, the force-measuring tooling assembly 22 on the tooling fixture 21 can be moved. The sliding direction of the force-measuring tooling assembly 22 on the horizontal sliding mechanism 211 is perpendicular to the sliding direction of the tooling fixture 21 on the horizontal slide table 2, and the sliding direction of the force-measuring tooling assembly 22 on the horizontal sliding mechanism 211 is perpendicular to the sliding direction of the clamping assembly 31 on the vertical slide table 3. The locking mechanism 212 can lock the sliding of the horizontal sliding mechanism 211.

[0033] like Figure 1 and Figure 2 As shown, a limiting block 34 is provided on the side of the vertical slide table 3. The limiting block 34 is located between the clamping assembly 31 and the base 1. The limiting block 34 is used to limit the stroke of the clamping device. The limiting block 34 is detachable.

[0034] like Figure 1 and Figure 2 A horizontal scale 23 is provided on the side of the horizontal slide table 2 away from the vertical slide table 3, and a vernier caliper 213 is provided on the side of the tooling fixture 21 away from the vertical slide table 3. In this embodiment, the vernier caliper 213 is an electronic vernier caliper with a digital display plane. The vernier caliper 213 is set in correspondence with the horizontal scale 23. The vernier caliper 213 is used to read the distance that the tooling fixture 21 slides on the horizontal slide table 2.

[0035] The operation process of the elasticity detection fixture for the carbon brush holder assembly 8 of the sunshade motor in this embodiment:

[0036] like Figure 4As shown, in this embodiment, the carbon brush holder assembly 8 of the sunshade motor has a central hole, in which two spring assemblies 81 are provided. Both spring assemblies 81 can move radially along the central hole, and the two spring assemblies 81 are arranged opposite to each other. The side of the carbon brush holder assembly 8 of the sunshade motor has several ribs 83 and a protruding part 82, and the bottom surface has a positioning hole. The operator first corrects the relative position of the force measuring fixture assembly 22 and the force gauge 32. The operator rotates the handwheel 6 of the vertical slide 3 to raise the clamping assembly 31, and rotates the handwheel 6 of the horizontal slide 2 to move the force measuring fixture assembly 22 below the force gauge 32. To begin the alignment process, lower the clamping assembly 31 and, in conjunction with the horizontal sliding mechanism 211, insert the end of the force measuring rod 33 into the alignment hole 222 located in the middle, so that the force gauge 32 displays 0N. Press the zeroing button on the vernier caliper 213 to zero the value displayed on the vernier caliper 213. Raise the clamping assembly 31, rotate the handwheel 6 of the horizontal slide 2 to move the tooling fixture 21 to the left by -5mm, lower the clamping assembly, and insert the end of the force measuring rod 33 into the right alignment hole 222. If the force gauge 32 still displays 0N, the alignment of the force measuring tooling assembly 22 is complete. If the force gauge 32 displays a value, then the force measuring tooling assembly is aligned. Component 22 is fine-tuned, and the centering step is repeated; the clamping assembly 31 is raised, and the positioning block 227 is placed into the centering hole 222 located in the middle; the clamping assembly 31 is lowered, and the end of the force measuring rod 33 contacts the top of the positioning block 227. At this time, the limiting block 34 is fixed to the lower end face of the side of the clamping assembly 31, and the lowering height of the clamping assembly 31 at this time is set to the maximum lowering height of the clamping assembly 31's stroke; the clamping assembly 31 is raised, and the sunshade motor carbon brush holder assembly 8 is placed into the placement groove 221. The protruding part 82 of the sunshade motor carbon brush holder assembly 8 is placed into the reserved groove 224, and the side rib 83 is... The clamping assembly 31 is lowered to contact the limiting block 34, and the force measuring rod 33 is inserted into the center hole of the carbon brush holder assembly 8 of the sunshade motor. The handwheel 6 of the horizontal slide 2 is rotated to move the tooling fixture 21 to the right to 3.9mm and record the value displayed by the force measuring meter 32. The tooling fixture 21 is moved to the left to 3.7mm and the value of the force measuring meter 32 is recorded. The tooling fixture 21 is moved to the left to 2.4mm and the value of the force measuring meter 32 is recorded, thus completing the spring force test of one side of the spring assembly 81. The tooling fixture 21 is moved to the left to 0mm, and the above spring force test steps are repeated to test the spring assembly 81 on the other side.

[0037] Example 2

[0038] This embodiment applies to the case where the center hole of the carbon brush holder assembly 8 of the sunshade motor has four spring assemblies 81 arranged in a cross shape. The difference between this embodiment and Embodiment 1 is that the force measuring fixture assembly 22 has two reserved slots 224, namely a first reserved slot 225 and a second reserved slot 226. The first reserved slot 225 and the second reserved slot 226 form an included angle of 90°, and the first reserved slot 225 forms an included angle of 45° with the straight line containing the three centering holes 222.

[0039] like Figure 5 As shown, the force measuring fixture assembly 22 is cylindrical with a groove in the middle. This groove is the placement groove 221. In use, the sunshade motor carbon brush holder assembly 8 is placed in the placement groove 221. In this embodiment, three straight-lined centering holes 222 are provided on the bottom surface of the placement groove 221. The centering hole 222 in the middle is located at the center of the bottom surface of the placement groove 221. The distance between two adjacent centering holes 222 is 5mm. The straight line formed by the three centering holes 222 is parallel to the sliding direction of the fixture 21. Furthermore, the surface of the placement groove 221 also... A positioning block 227 is provided, and a stepped shaft is provided outside the positioning block 227. The outer diameter of the small diameter section is equal to the inner diameter of the centering hole 222. The positioning block 227 is used to limit the maximum descent height of the clamping assembly 31 after the centering step. In this embodiment, there are two reserved slots 224, including a first reserved slot 225 and a second reserved slot 226. When viewed from the top view of the force measuring tool assembly 22, the first reserved slot 225 and the second reserved slot 226 form an angle of 90°. The first reserved slot 225 has an angle of 45° with the straight line where the three centering holes 222 are located.

[0040] When operating the elasticity testing fixture for the carbon brush holder assembly 8 of the sunshade motor in this embodiment, firstly, the protruding part 82 of the carbon brush holder assembly 8 of the sunshade motor is placed into the first reserved slot 225, and the carbon brush holder assembly 8 of the sunshade motor is placed in the placement groove 221; repeat the positioning operation steps in Embodiment 1, and then perform elasticity testing on a set of oppositely arranged spring assemblies 81 of the carbon brush holder assembly 8; raise the clamping assembly 31, remove the carbon brush holder assembly 8 of the sunshade motor, place the protruding part 82 into the second reserved slot 226, and place the carbon brush holder assembly 8 of the sunshade motor in the placement groove 221; lower the clamping assembly 31, and perform elasticity testing on another set of oppositely arranged spring assemblies 81.

[0041] This utility model has a simple structure and low investment cost. Compared with the handheld tension meter for spring force testing of the spring assembly 81 of the carbon brush holder assembly 8 of the sunshade motor, it is more stable and has more accurate test data, which meets the testing requirements of the carbon brush holder assembly 8 of the sunshade motor after it is produced.

[0042] The above description is a preferred embodiment of the present utility model, used to illustrate the specific structure and function of the present utility model. It should be noted that, without departing from the principle of the present utility model, those skilled in the art can make foreseeable improvements and modifications to the present utility model, and these improvements and modifications are also within the protection scope of the present utility model.

Claims

1. A device for detecting the elasticity of a carbon brush holder assembly in a sunshade curtain motor, characterized in that, The device includes a base, on which are provided a horizontal slide and a vertical slide. A tooling fixture is slidably connected to the horizontal slide, and a force measuring tooling assembly is connected to the tooling fixture. A clamping assembly is slidably connected to the vertical slide, and the clamping assembly is connected to a force gauge.

2. The device for detecting the elasticity of a carbon brush holder assembly for a sunshade motor according to claim 1, characterized in that, The force measuring fixture assembly has a placement groove, at least three centering holes arranged in a straight line are provided on the bottom surface of the placement groove, a number of positioning grooves are provided on the inner side of the placement groove, and at least one reserved groove is opened on the side of the force measuring fixture assembly.

3. The device for detecting the elasticity of a carbon brush holder assembly for a sunshade motor according to claim 2, characterized in that, The force measuring fixture assembly also includes a positioning block, which is inserted into the centering hole. A limiting block is provided on the side of the vertical slide, and the limiting block is located between the base and the clamping assembly.

4. The device for detecting the elasticity of a carbon brush holder assembly for a sunshade motor according to claim 2, characterized in that, The force gauge has a force measuring rod, the end of which is spherical, and the outer diameter of the end of the force measuring rod is equal to the inner diameter of the centering hole.

5. The device for detecting the elasticity of a carbon brush holder assembly for a sunshade motor according to claim 1, characterized in that, The tooling fixture has a horizontal sliding mechanism and a locking mechanism. The sliding direction of the horizontal sliding mechanism is perpendicular to the sliding direction of the tooling fixture, and the sliding direction of the horizontal sliding mechanism is perpendicular to the sliding direction of the clamping assembly.

6. The device for detecting the elasticity of a carbon brush holder assembly for a sunshade motor according to claim 1, characterized in that, The horizontal slide is equipped with a horizontal scale, and the tooling fixture is equipped with a vernier caliper, with the vernier caliper corresponding to the horizontal scale.

7. A device for detecting the elasticity of a carbon brush holder assembly for a sunshade motor according to any one of claims 1 to 6, characterized in that, Both the horizontal slide and the vertical slide have lead screws and limit rods.

8. The device for detecting the elasticity of a carbon brush holder assembly for a sunshade motor according to claim 7, characterized in that, Both the horizontal slide and the vertical slide have handwheels and slide locking rods.

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