Equipment for detecting concentricity of inner and outer circumferential side surfaces of straight cylinder section on gear hub shaft of clutch
By designing detection equipment for the positioning seat and clamping components, the time-consuming and costly problems of traditional detection methods are solved, and efficient and low-cost concentricity detection is achieved.
Patent Information
- Application Number
- CN202422486622.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-15
AI Technical Summary
Traditional concentricity testing of the inner and outer circumferential surfaces of the straight cylindrical section on the clutch hub shaft is time-consuming and labor-intensive, resulting in low quality inspection efficiency and high costs.
A testing device is designed, including a positioning seat, a longitudinal pressing assembly and a horizontal radial elastic pressing assembly. The concentricity of a straight tube section can be quickly judged through simple operation, which reduces the amount of manual labor involved and ensures the reliability of the test results.
It greatly improves quality inspection efficiency, reduces labor costs, simplifies operating steps, and ensures the reliability and economic practicality of test results.
Smart Images
Figure CN223361424U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clutch gear hub shaft processing auxiliary equipment, in particular to a device for detecting the concentricity of inner and outer peripheral sides of a straight cylinder section on a clutch gear hub shaft. Background Art
[0002] In the mechanical transmission system of the automatic transmission, the clutch is usually used to realize the separation or engagement of the transmission system at any time, wherein the gear hub shaft is an important component of the clutch. Figures 1-2 As shown, a clutch hub shaft 12 comprises a cylinder body 1A, a cylinder body 2B coaxially fixed to the top of the cylinder body 1A, a straight section C coaxially fixed to the top of the cylinder body 2B, teeth A-1 circumferentially spaced at the lower end of the outer circumferential side of the cylinder body 1A, and cylinder body 2B comprising a plurality of arcuate support plates B-2 and an annular top plate B-1. The plurality of arcuate support plates B-2 are circumferentially spaced and vertically welded to the outer circumferential side of the top of the cylinder body 1A, and the annular top plate B-1 is vertically fixed to the tops of the plurality of arcuate support plates B-2. The straight section C is integrally formed in the center hole of the annular top plate B-1. When machining the straight section C of the clutch hub shaft, the outer circumferential side of the straight section C is first turned from the blank of the cylinder body C on a lathe, and then the inner hole of the straight section C with an appropriate inner diameter is bored. Since the workpiece has high requirements for the concentricity of the inner and outer circumferential sides of the straight-cylinder section C, and the outer and inner circumferential sides of the straight-cylinder section C are formed in two stages, in order to ensure that the straight-cylinder section C after the clutch gear hub shaft is processed and formed meets the specification requirements, it is necessary to perform concentricity detection on the outer and inner circumferential sides of the straight-cylinder section C on the clutch gear hub shaft. Traditional concentricity detection of the inner and outer circumferential sides of the straight-cylinder section C on the clutch gear hub shaft mostly adopts three-coordinate detection, which is time-consuming and labor-intensive, seriously restricting the efficiency of quality inspection of the concentricity of the inner and outer circumferential sides of the straight-cylinder section of the clutch gear hub shaft, and the labor cost is high, resulting in poor economic benefits. To this end, the utility model proposes a device for detecting the concentricity of the inner and outer circumferential sides of the straight-cylinder section on the clutch gear hub shaft, in order to solve the above-mentioned technical problems. Summary of the Invention
[0003] The purpose of the present utility model is to overcome the defects existing in the prior art and provide a device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft. When in use, the straight cylindrical section of the clutch gear hub shaft is oriented downward and sleeved on the positioning cone on the positioning seat, the longitudinal pressing assembly on the support plate is rotated to the position corresponding to the position directly above the positioning seat, and then the toggle clamp is bent into a locking state. The operator rotates the clutch gear hub shaft with one hand and visually observes whether the fluctuation range of the pointer on the measuring gauge meets the qualified requirements to quickly determine whether the clutch gear hub shaft workpiece is qualified. The operation steps are simple and the technical quality requirements for the operator are low. The three-coordinate detection method greatly reduces the amount of manual labor involved, and the detection time of a single workpiece is greatly shortened, which helps to greatly improve the quality inspection efficiency of the concentricity of the inner and outer peripheral sides of the straight-cylinder section of the clutch gear hub shaft, and helps to greatly reduce labor costs; the straight-cylinder section is sleeved on the positioning cone of the positioning seat, so that when the clutch gear hub shaft is sleeved on the positioning seat within the error range, the straight-cylinder section and the positioning cone can both achieve an interference fit state, which helps to eliminate the measurement error of the concentricity of the inner and outer peripheral sides of the straight-cylinder section caused by the workpiece size deviation, and ensure the reliability of the detection results; the overall structural design is simple, the preparation and implementation feasibility is good, and the economy and practicality are good.
[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is to design a device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch hub shaft, including a workbench, the upper end face of the workbench is provided with a positioning seat that can rotate horizontally, the upper end of the positioning seat has a positioning cone that is adapted to the straight cylindrical section of the clutch hub shaft, and the small diameter end of the positioning cone faces upward, the upper end face of the workbench is also provided with a longitudinal clamping component and a horizontal radial elastic clamping component for pressing the clutch hub shaft onto the positioning seat, the horizontal radial elastic clamping component has cooperative contacts and measuring meters, when in use, the straight cylindrical section of the clutch hub shaft is sleeved and pressed onto the positioning cone of the positioning seat through the longitudinal clamping component, and the contacts on the horizontal radial elastic clamping component are elastically pressed and fit onto the outer circumferential side of the straight cylindrical section on the clutch hub shaft.
[0005] The utility model relates to a device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft. When in use, the straight cylindrical section of the clutch gear hub shaft is oriented downward and sleeved on the positioning cone on the positioning seat, the longitudinal pressing assembly on the support plate is rotated to correspond to the position directly above the positioning seat, and then the toggle clamp is bent into a locking state. The operator rotates the clutch gear hub shaft with one hand and visually observes whether the fluctuation range of the pointer on the measuring gauge meets the qualified requirements to quickly determine whether the clutch gear hub shaft workpiece is qualified. The operation steps are simple, the technical quality requirements for the operator are low, and compared with the three-coordinate detection method, the utility model has a large-scale, high-precision, and low-performance, high-precision, and high-performance, ... The manual labor involved is greatly reduced, and the inspection time of a single workpiece is greatly shortened, which helps to greatly improve the quality inspection efficiency of the concentricity of the inner and outer peripheral sides of the straight section of the clutch gear hub shaft, and helps to greatly reduce manual labor costs; the straight section is sleeved on the positioning cone of the positioning seat, so that when the clutch gear hub shaft is sleeved on the positioning seat within the error range, the straight section and the positioning cone can reach an interference fit state, which helps to eliminate the measurement error of the concentricity of the inner and outer peripheral sides of the straight section caused by the workpiece size deviation, and ensures the reliability of the inspection results; the overall structural design is simple, the preparation and implementation feasibility is good, and the economy and practicality are good.
[0006] The preferred technical solution is that the workbench has a bearing seat 1 on the front left end. The bearing seat 1 includes a seat body, a bearing is embedded and fixed in the cavity of the seat body, an upper end cover is fixed at the upper end of the seat body, and a lower end cover is fixed at the lower end. The positioning seat includes a seat plate, the upper end surface of the seat plate has a positioning column, the positioning cone is coaxially fixed to the upper end surface of the positioning column, and the lower end of the seat plate is vertically fixed to a shaft body. The shaft body movably passes through the center hole of the upper end cover and is plugged and fixedly installed on the inner ring of the bearing in the cavity of the bearing seat 1. The positioning seat is rotatably mounted on the workbench through the bearing seat 1. The installation method is simple, ensuring that the equipment for detecting the concentricity of the inner and outer circumferential surfaces of the straight cylindrical section on the clutch gear hub shaft of the present invention can be successfully prepared and implemented.
[0007] A further preferred technical solution is that the longitudinal clamping assembly includes a column, the upper end of the column is rotatably sleeved and installed with a shaft sleeve through two pressure plate assemblies, the outer sleeve of the shaft sleeve is sleeved and fixed with a support plate located in the horizontal direction, the end of the support plate away from the column is fixed with a support sleeve 1 that passes through the upper and lower end surfaces of the plate body, the upper end of the support sleeve 1 is coaxially fixed with a support sleeve 2, the support sleeve 1 and the support sleeve 2 are internally movably connected with a sliding sleeve with an upper end opening, the lower end of the sliding sleeve is rotatably installed with a pressing claw located below the support sleeve 1 through the bearing seat 2, and the sliding sleeve is internally fixed with a pressing claw located below the support sleeve 1. A pull rod is movably connected to the bottom of the pull rod, and a connecting column is detachably mounted on the lower end of the pull rod. The connecting column is provided with a longitudinal waist-shaped through hole extending through its axis. The upper end of the sliding sleeve is provided with a through hole of the same diameter extending through its cross section. A pin is connected to the through hole and extends through the longitudinal waist-shaped through hole on the connecting column. A spring is mounted on the bottom end of the inner cavity of the sliding sleeve. The upper end of the spring abuts against the lower end surface of the connecting column, and the lower end abuts against the inner cavity bottom of the sliding sleeve. The upper end of the support sleeve is threaded with a limit nut. The upper end of the pull rod movably passes through the limit nut and is also mounted with a toggle clamp. The longitudinal clamping assembly has a simple structural design, and the pin connected to the through hole at the upper end of the sliding sleeve is also connected to the longitudinal waist hole on the connecting column, ensuring that the connecting column has a certain longitudinal movement space. In cooperation with the spring, the longitudinal clamping assembly has a certain longitudinal deformation buffering function, thereby avoiding hard pressure damage to the clutch hub shaft mounted on the positioning seat.
[0008] A further preferred technical solution is that the horizontal radial elastic pressure assembly includes several guide rails and sliding plates arranged in parallel and at intervals, several of the guide rails are fixedly arranged on the right end of the upper end face of the workbench along the horizontal transverse direction, and the lower end face of the sliding plate is slidably installed on the several guide rails through a sliding seat, and the left end of the upper end face of the sliding plate is provided with an elastic component that can move horizontally along the left and right directions, and the right end of the upper end face of the sliding plate is fixedly provided with a fixed block 1, the measuring table is fixed on the fixed block 1, and the measuring head of the measuring table corresponds to the right end face of the elastic component, the contact is fixed to the left end of the elastic component, and the right end of the upper end face of the workbench is also fixed with a fixed block 2 located on the right side of the measuring table, and a connecting rod that runs through the left and right side faces is movably connected on the fixed block 2, and the left end of the connecting rod is fixed on the sliding plate, and an elbow clamp 2 is installed on the right end. The horizontal radial elastic clamping assembly has a simple structural design, which enables the measuring head on the measuring meter to achieve an elastic compression and fitting effect with the outer surface of the straight cylinder section on the clutch gear hub shaft through the horizontal radial elastic clamping assembly, ensuring that the measuring meter can collect the displacement information corresponding to the outer surface of the straight cylinder section in real time when the positioning seat rotates.
[0009] A further preferred technical solution is that the right end of the connecting rod is further mounted with a second limit nut located to the right of the second fixed block, a limit block is fixedly provided on the rear side of the upper end surface of the workbench, the limit block has a limit slot opening upward, and the rear side surface of the sliding plate has a limit rod extending rearward and inserted into the upper limit slot of the limit block. The limit rod on the rear side surface of the sliding plate is inserted into the limit slot of the limit block, thereby limiting the sliding plate when it moves in the left and right directions and preventing the sliding plate from slipping off the guide rail.
[0010] A further preferred technical solution is that the elastic component includes a mountain-shaped fixed seat, an inverted mountain-shaped sliding seat, and a "Z"-shaped connecting rod. The mountain-shaped fixed seat is fixed to the left end of the upper end face of the sliding plate, and the inverted mountain-shaped sliding seat is movably connected above the mountain-shaped fixed seat. The right end face of the mountain-shaped fixed seat and the right end face of the inverted mountain-shaped sliding seat, and the left end face of the mountain-shaped fixed seat and the left end face of the inverted mountain-shaped sliding seat are respectively connected together by a number of elastic connecting pieces. The right end of the "Z"-shaped connecting rod is fixed to the top of the inverted mountain-shaped sliding seat, and the contact is fixedly installed on the left end of the "Z"-shaped connecting rod. The measuring head of the measuring meter abuts against the right end face of the inverted mountain-shaped sliding seat. The elastic component has a simple structural design and good elastic deformation along the left and right horizontal directions, ensuring that the device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft of the present invention can be smoothly prepared and implemented.
[0011] A further preferred technical solution is that the crimping claws are of a cross-shaped structure.
[0012] A further preferred technical solution is that the lower end surface of the workbench has a plurality of legs.
[0013] The advantages and beneficial effects of the utility model are:
[0014] 1. The utility model is a device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft. When in use, the straight cylindrical section of the clutch gear hub shaft is oriented downward and sleeved on the positioning cone on the positioning seat, the longitudinal pressing assembly on the support plate is rotated to the position corresponding to the position directly above the positioning seat, and then the toggle clamp is bent into a locked state. The operator rotates the clutch gear hub shaft with one hand and visually observes whether the fluctuation range of the pointer on the measuring gauge meets the qualified requirements to quickly determine whether the clutch gear hub shaft workpiece is qualified. The operation steps are simple and the technical quality requirements for the operator are low. Compared with the three-coordinate detection method, The amount of manual labor involved is greatly reduced, and the inspection time of a single workpiece is greatly shortened, which helps to greatly improve the quality inspection efficiency of the concentricity of the inner and outer peripheral sides of the straight section of the clutch gear hub shaft, and helps to greatly reduce labor costs; the straight section is sleeved on the positioning cone of the positioning seat, so that when the clutch gear hub shaft is sleeved on the positioning seat within the error range, the straight section and the positioning cone can achieve an interference fit state, which helps to eliminate the measurement error of the concentricity of the inner and outer peripheral sides of the straight section caused by the workpiece size deviation, and ensures the reliability of the inspection results; the overall structural design is simple, the preparation and implementation feasibility is good, and the economy and practicality are good.
[0015] 2. The structural design of the longitudinal clamping assembly is simple, and the pin shaft connected to the through hole at the upper end of the sliding sleeve is also connected to the longitudinal waist hole on the connecting column, ensuring that the connecting column has a certain longitudinal movement space, thereby cooperating with the spring to enable the longitudinal clamping assembly to have a certain longitudinal deformation buffering function, avoiding hard crushing of the clutch hub shaft installed on the locating seat.
[0016] 3. The horizontal radial elastic pressing component has a simple structural design, which enables the measuring head on the measuring meter to achieve elastic pressing and fitting effect with the outer surface of the straight cylinder section on the clutch gear hub shaft through the horizontal radial elastic pressing component, ensuring that the measuring meter can collect the displacement information corresponding to the outer surface of the straight cylinder section in real time when the positioning seat rotates.
[0017] 4. The limit rod on the rear side of the sliding plate is inserted into the limit groove on the limit block, thereby limiting the sliding plate when it moves along the left and right directions, preventing the sliding plate from slipping off the guide rail; the elastic component has a simple structural design and good elastic deformation along the left and right horizontal directions, ensuring that the equipment for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft of the present invention can be smoothly prepared and implemented. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a stereoscopic view from one end of the clutch hub shaft;
[0019] Figure 2 This is a stereoscopic view of the clutch hub shaft from the other end;
[0020] Figure 3This is a schematic structural diagram of the longitudinal pressing assembly of the device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft of the utility model in the open state;
[0021] Figure 4 It is a longitudinal sectional view of the positioning seat along its center line;
[0022] Figure 5 is a longitudinal cross-sectional view of the longitudinal clamping assembly along its centerline;
[0023] Figure 6 It is a disassembled state diagram of the longitudinal pressing component;
[0024] Figure 7 is a perspective view of a horizontal radial compression assembly;
[0025] Figure 8 This is a stereoscopic view from the right front side of the device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft in use;
[0026] Figure 9 yes Figure 8 A partial enlarged view of the H in the middle;
[0027] Figure 10 This is a stereoscopic view from the right rear side of the device in use for detecting the concentricity of the inner and outer circumferential sides of a straight cylindrical section on a clutch gear hub shaft according to the utility model.
[0028] In the figure: A, cylinder 1; B, cylinder 2; C, straight cylinder section; A-1, teeth; B-1, top plate; B-2, arc-shaped support leg plate; 1, workbench; 2, bearing seat 1; 3, positioning seat; 4, column; 5, shaft sleeve; 6, pressure plate assembly; 7, support plate; 8, longitudinal clamping assembly; 9, crimping claw; 10, bearing seat 2; 11, horizontal radial elastic clamping assembly; 12, clutch hub shaft; 1-1, support leg; 2-1, seat body; 2-2, upper end cover; 2-3, lower end cover; 2-4, bearing; 3-1, seat plate; 3-2, positioning column; 3-3, positioning cone; 3-4, shaft body; 8-1, support sleeve 1; 8-2, support sleeve 2; 8-3, sliding sleeve; 8-3a, through hole; 8- 4. Pull rod; 8-5. Connecting column; 8-5a. Longitudinal waist-shaped through hole; 8-6. Spring; 8-7. Limit nut one; 8-8. Toggle clamp one; 11-1. Guide rail; 11-2. Sliding seat; 11-3. Sliding plate; 11-4. Fixed block one; 11-5. Measuring table; 11-6. Measuring head; 11-7. Mountain-shaped fixed seat; 11-8. Inverted mountain-shaped sliding seat; 11-9. Elastic connecting piece; 11-10. "Z"-shaped connecting rod; 11-11. Contact; 11-12. Connecting rod; 11-13. Limit nut two; 11-14. Toggle clamp two; 11-15. Limit block; 11-15a. Limit groove; 11-16. Limit rod; 11-17. Fixed block two. DETAILED DESCRIPTION
[0029] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.
[0030] Example
[0031] like Figures 1 to 10 As shown, the utility model is a device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft 12, comprising a workbench 1, the upper end surface of the workbench 1 is provided with a positioning seat 3 that can rotate horizontally, the upper end of the positioning seat 3 has a positioning cone 3-3 that is adapted to the straight cylindrical section C of the clutch gear hub shaft 12, and the small diameter end of the positioning cone 3-3 faces upward, the upper end surface of the workbench 1 is also provided with a longitudinal pressing component 8 and a horizontal radial elastic pressing component 11 for pressing the clutch gear hub shaft 12 onto the positioning seat 3, the horizontal radial elastic pressing component 11 has cooperative contacts 11-11 and a measuring table 11-5, when in use, the straight cylindrical section C of the clutch gear hub shaft 12 is sleeved and pressed onto the positioning cone 3-3 of the positioning seat 3 through the longitudinal pressing component 8, and the contacts 11-11 on the horizontal radial elastic pressing component 11 are elastically pressed and fit on the outer circumferential side of the straight cylindrical section C on the clutch gear hub shaft 12.
[0032] Preferably, the front left end of the workbench 1 has a bearing seat 2, and the bearing seat 2 includes a seat body 2-1, and a bearing 2-4 is embedded and fixed inside the cavity of the seat body 2-1. The upper end of the seat body 2-1 is fixed with an upper end cover 2-2, and the lower end is fixed with a lower end cover 2-3. The positioning seat 3 includes a seat plate 3-1, and the upper end surface of the seat plate 3-1 has a positioning column 3-2. The positioning cone 3-3 is coaxially fixed on the upper end surface of the positioning column 3-2, and the lower end of the seat plate 3-1 is vertically fixed with a shaft body 3-4. The shaft body 3-4 is movably passed through the center hole on the upper end cover 2-2 and is plugged and fixedly installed on the inner ring of the bearing 2-4 inside the cavity of the bearing seat 2.
[0033] Further preferably, the longitudinal clamping assembly 8 includes a column 4, the upper end of the column 4 is rotatably sleeved with a shaft sleeve 5 through two pressure plate assemblies 6, the external sleeve of the shaft sleeve 5 is sleeved and fixed with a support plate 7 located in the horizontal direction, the end of the support plate 7 away from the column 4 is fixed with a support sleeve 1 8-1 that passes through the upper and lower end surfaces of the plate body, the upper end of the support sleeve 1 8-1 is coaxially fixed with a support sleeve 2 8-2, the support sleeve 1 8-1 and the support sleeve 2 8-2 are internally movably connected with a sliding sleeve 8-3 with an upper end opening, the lower end of the sliding sleeve 8-3 is rotatably installed with a pressing claw 9 located below the support sleeve 1 8-1 through a bearing seat 2 10, the sliding sleeve 8-3 is internally movably connected with a pull rod 8-4, the A connecting column 8-5 is detachably mounted on the lower end of the pull rod 8-4, and a longitudinal waist-shaped through hole 8-5a passing through the axis of the connecting column 8-5 is provided on the connecting column 8-5, and a through hole 8-3a with the same diameter as that of its cross section is provided on the upper end of the sliding sleeve 8-3, and a pin shaft passing through the longitudinal waist-shaped through hole 8-5a on the connecting column 8-5 is passed through the inside of the through hole 8-3a, and a spring 8-6 is mounted on the bottom end of the inner cavity of the sliding sleeve 8-3, and the upper end of the spring 8-6 abuts against the lower end surface of the connecting column 8-5 and the lower end abuts against the bottom of the inner cavity of the sliding sleeve 8-3, the upper end of the support sleeve 8-2 is threaded with a limiting nut 8-7, and the upper end of the pull rod 8-4 movably passes through the limiting nut 8-7 and is mounted with an elbow clamp 8-8. Specifically, a threaded blind hole is provided on the lower end surface of the pull rod 8-4, and a threaded column is provided on the upper end of the connecting column 8-5. The threaded column on the upper end of the connecting column 8-5 is screwed and fixed to the threaded blind hole on the lower end surface of the pull rod 8-4.
[0034] Further preferably, the horizontal radial elastic pressing assembly 11 includes a plurality of guide rails 11-1 and sliding plates 11-3 arranged in parallel and spaced apart. The plurality of guide rails 11-1 are fixedly arranged on the right end of the upper end surface of the workbench 1 along the horizontal transverse direction. The lower end surface of the sliding plate 11-3 is slidably installed on the plurality of guide rails 11-1 through a sliding seat 11-2. The left end of the upper end surface of the sliding plate 11-3 is provided with an elastic assembly capable of horizontally moving in the left and right directions. The right end of the upper end surface of the sliding plate 11-3 is fixedly provided with a fixed block 11-4. The measuring table 11-5 is fixed on the fixed block 11-4, and the measuring head 11-6 of the measuring table 11-5 is correspondingly fitted on the right end face of the elastic component, the contact 11-11 is fixed to the left end of the elastic component, and the right end of the upper end face of the workbench 1 is also fixed with a fixed block 2 11-17 located on the right side of the measuring table 11-5, and the fixed block 2 11-17 is movably connected with a connecting rod 11-12 that passes through the left and right sides, the left end of the connecting rod 11-12 is fixed on the sliding plate 11-3, and the right end is installed with an elbow clamp 2 11-14.
[0035] Further preferably, the right end of the connecting rod 11-12 is also installed with a limiting nut 11-13 located on the right side of the fixed block 11-17, and a limiting block 11-15 is fixed on the rear side of the upper end surface of the workbench 1, and the limiting block 11-15 has a limiting groove 11-15a opening upward, and the rear side surface of the sliding plate 11-3 has a limiting rod 11-16 extending toward the rear side and inserted into the upper limiting groove 11-15a of the limiting block 11-15.
[0036] Further preferably, the elastic component includes a mountain-shaped fixed seat 11-7, an inverted mountain-shaped sliding seat 11-8, and a "Z"-shaped connecting rod 11-10, wherein the mountain-shaped fixed seat 11-7 is fixed to the left end of the upper end surface of the sliding plate 11-3, and the inverted mountain-shaped sliding seat 11-8 is movably connected and located above the mountain-shaped fixed seat 11-7, and the right end surface of the mountain-shaped fixed seat 11-7 and the right end surface of the inverted mountain-shaped sliding seat 11-8, and the mountain-shaped fixed seat 11-7 and ... The left end face of the fixed seat 11-7 and the left end face of the inverted mountain-shaped sliding seat 11-8 are respectively connected together by a number of elastic connecting pieces 11-9. The right end of the "Z"-shaped connecting rod 11-10 is fixedly arranged on the top of the inverted mountain-shaped sliding seat 11-8. The contact 11-11 is fixedly installed on the left end portion of the "Z"-shaped connecting rod 11-10. The measuring head 11-6 of the measuring table 11-5 is in contact with the right end face of the inverted mountain-shaped sliding seat 11-8.
[0037] Further preferably, the crimping claws 9 are of a cross-shaped structure.
[0038] Further preferably, the lower end surface of the workbench 1 has a plurality of legs 1 - 1.
[0039] The utility model is a device for detecting the concentricity of the inner and outer peripheral sides of the straight cylindrical section on the clutch gear hub shaft. The working principle is as follows:
[0040] Step 1: When using, bend the elbow clamp 8-8 to the unlocked state, and then rotate the longitudinal pressing assembly 8 on the support plate 7 to stagger with the positioning seat 3 (see attached Figure 3 );
[0041] Step 2: Turn the straight section C of the clutch hub shaft 12 downward and sleeve it onto the positioning cone 3-3 on the positioning seat 3. Rotate the longitudinal pressing assembly 8 on the support plate 7 to the position just above the positioning seat 3. Then bend the toggle clamp 8-8 to the locking state. At this time, the pressing claw 9 is pressed tightly against the top of the cylinder A of the clutch hub shaft 12 (see the attached Figures 8-10 );
[0042] Step 3: The operator rotates the clutch hub shaft 12 with one hand and visually measures the gauge 11-5 to see whether the pointer fluctuation range meets the qualification requirements, thereby judging whether the clutch hub shaft 12 workpiece is qualified.
[0043] The utility model relates to a device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch gear hub shaft. When in use, the straight cylindrical section of the clutch gear hub shaft is oriented downward and sleeved on the positioning cone on the positioning seat, the longitudinal pressing assembly on the support plate is rotated to the position corresponding to the position directly above the positioning seat, and then the toggle clamp is bent into a locking state. The operator rotates the clutch gear hub shaft with one hand and visually observes whether the fluctuation range of the pointer on the measuring table meets the qualified requirements to quickly determine whether the clutch gear hub shaft workpiece is qualified. The operation steps are simple, the technical quality requirements for the operator are low, and the amount of manual labor involved is greatly reduced compared with the three-coordinate detection method. A single work The inspection time of parts is greatly shortened, which helps to greatly improve the quality inspection efficiency of the concentricity of the inner and outer peripheral sides of the straight section of the clutch gear hub shaft, and helps to greatly reduce labor costs; the straight section is sleeved on the positioning cone of the positioning seat, so that when the clutch gear hub shaft within the error range is sleeved on the positioning seat, the straight section and the positioning cone can reach an interference fit state, which helps to eliminate the measurement error of the concentricity of the inner and outer peripheral sides of the straight section caused by the workpiece size deviation, and ensures the reliability of the inspection results; the overall structural design is simple, the preparation and implementation feasibility is good, and the economy and practicality are good, and it can be used for process quality control of the manufacturing process on the clutch gear hub shaft production line.
[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch hub shaft, characterized in that: The invention comprises a workbench (1), wherein the upper end surface of the workbench (1) is provided with a positioning seat (3) capable of horizontal rotation, the upper end of the positioning seat (3) has a positioning cone (3-3) adapted to the straight cylindrical section (C) of the clutch gear hub shaft (12), and the small diameter end of the positioning cone (3-3) faces upward, and the upper end surface of the workbench (1) is also provided with a longitudinal pressing component (8) for pressing the clutch gear hub shaft (12) onto the positioning seat (3) and a horizontal radial elastic pressing component (9). The horizontal radial elastic pressing assembly (11) has cooperatively matched contacts (11-11) and a measuring meter (11-5). When in use, the straight section (C) of the clutch gear hub shaft (12) is sleeved and pressed onto the positioning cone (3-3) of the positioning seat (3) through the longitudinal pressing assembly (8), and the contacts (11-11) on the horizontal radial elastic pressing assembly (11) are elastically pressed and fitted onto the outer peripheral side surface of the straight section (C) on the clutch gear hub shaft (12).
2. The device for detecting the concentricity of the inner and outer circumferential surfaces of the straight cylindrical section on the clutch hub shaft according to claim 1, characterized in that: The workbench (1) has a bearing seat (2) at the front left end, and the bearing seat (2) includes a seat body (2-1). A bearing (2-4) is fixedly installed inside the cavity of the seat body (2-1). An upper end cover (2-2) is fixedly installed at the upper end of the seat body (2-1), and a lower end cover (2-3) is fixedly installed at the lower end. The positioning seat (3) includes a seat plate (3-1). The upper end surface of the seat plate (3-1) has a positioning column (3-2). The positioning cone (3-3) is coaxially fixed on the upper end surface of the positioning column (3-2). A shaft (3-4) is vertically fixed at the lower end of the seat plate (3-1). The shaft (3-4) movably passes through the center hole on the upper end cover (2-2) and is plugged and fixedly installed on the inner ring of the bearing (2-4) inside the cavity of the bearing seat (2).
3. The device for detecting the concentricity of the inner and outer circumferential surfaces of the straight cylindrical section on the clutch hub shaft according to claim 2, characterized in that: The longitudinal clamping assembly (8) includes a column (4), the upper end of the column (4) is rotatably sleeved and installed with a shaft sleeve (5) through two pressure plate assemblies (6), the outer sleeve of the shaft sleeve (5) is sleeved and fixed with a support plate (7) located in the horizontal direction, the end of the support plate (7) away from the column (4) is fixed with a support sleeve 1 (8-1) that passes through the upper and lower end surfaces of the plate body, the upper end of the support sleeve 1 (8-1) is coaxially fixed with a support sleeve 2 (8-2), the support sleeve 1 (8-1) and the support sleeve 2 (8-2) are internally movably connected with a sliding sleeve (8-3) with an upper end opening, the lower end of the sliding sleeve (8-3) is rotatably installed with a pressing claw (9) located below the support sleeve 1 (8-1) through a bearing seat 2 (10), the sliding sleeve (8-3) is internally movably connected with a pull rod (8-4), the pull rod A connecting column (8-5) is detachably mounted on the lower end of (8-4), and a longitudinal waist-shaped through hole (8-5a) passing through the axis of the connecting column (8-5) is provided on the connecting column (8-5), and a through hole (8-3a) with the same diameter as the cross section is provided on the upper end of the sliding sleeve (8-3), and a pin shaft passing through the longitudinal waist-shaped through hole (8-5a) on the connecting column (8-5) is connected inside the through hole (8-3a), and a spring (8-6) is mounted on the bottom end of the inner cavity of the sliding sleeve (8-3), and the upper end of the spring (8-6) abuts against the lower end surface of the connecting column (8-5) and the lower end abuts against the bottom end of the inner cavity of the sliding sleeve (8-3), and the upper end of the supporting sleeve (8-2) is screwed with a limiting nut (8-7), and the upper end of the pull rod (8-4) movably passes through the limiting nut (8-7) and is mounted with an elbow clamp (8-8).
4. The device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch hub shaft according to claim 3, characterized in that: The horizontal radial elastic pressing assembly (11) includes a plurality of guide rails (11-1) and sliding plates (11-3) arranged in parallel and spaced apart. The plurality of guide rails (11-1) are fixedly arranged on the right end of the upper end surface of the workbench (1) along the horizontal transverse direction. The lower end surface of the sliding plate (11-3) is slidably mounted on the plurality of guide rails (11-1) through a sliding seat (11-2). The left end of the upper end surface of the sliding plate (11-3) is provided with an elastic assembly capable of horizontally moving in the left and right directions. The right end of the upper end surface of the sliding plate (11-3) is fixedly provided with a fixed block (11-4). The measuring table (11-5) The measuring head (11-6) of the measuring table (11-5) is fixed on the right end surface of the elastic component, and the contact (11-11) is fixed on the left end of the elastic component. The right end of the upper end surface of the workbench (1) is also fixed with a second fixing block (11-17) located on the right side of the measuring table (11-5). The second fixing block (11-17) is movably connected with a connecting rod (11-12) that passes through the left and right sides. The left end of the connecting rod (11-12) is fixed on the sliding plate (11-3), and the right end is equipped with a second elbow clamp (11-14).
5. The device for detecting the concentricity of the inner and outer circumferential sides of the straight cylindrical section on the clutch hub shaft according to claim 4, characterized in that: The right end of the connecting rod (11-12) is also equipped with a second limiting nut (11-13) located on the right side of the second fixing block (11-17). A limiting block (11-15) is fixed on the rear side of the upper end surface of the workbench (1). The limiting block (11-15) has a limiting groove (11-15a) opening upward. The rear side surface of the sliding plate (11-3) has a limiting rod (11-16) extending backward and inserted into the upper limit groove (11-15a) of the limiting block (11-15).
6. The device for detecting the concentricity of the inner and outer circumferential surfaces of the straight cylindrical section on the clutch hub shaft according to claim 5, characterized in that: The elastic component comprises a mountain-shaped fixed seat (11-7), an inverted mountain-shaped sliding seat (11-8), and a "Z"-shaped connecting rod (11-10). The mountain-shaped fixed seat (11-7) is fixed to the left end of the upper end surface of the sliding plate (11-3). The inverted mountain-shaped sliding seat (11-8) is movably plugged and located above the mountain-shaped fixed seat (11-7). The right end surface of the mountain-shaped fixed seat (11-7) and the right end surface of the inverted mountain-shaped sliding seat (11-8) are connected, and the mountain-shaped fixed seat ( The left end surface of the Z-shaped connecting rod (11-7) and the left end surface of the inverted mountain-shaped sliding seat (11-8) are respectively connected together through a plurality of elastic connecting pieces (11-9); the right end of the Z-shaped connecting rod (11-10) is fixedly arranged on the top of the inverted mountain-shaped sliding seat (11-8); the contact (11-11) is fixedly installed on the left end of the Z-shaped connecting rod (11-10); and the measuring head (11-6) of the measuring meter (11-5) abuts against the right end surface of the inverted mountain-shaped sliding seat (11-8).
7. The device for detecting the concentricity of the inner and outer circumferential surfaces of the straight cylindrical section on the clutch hub shaft according to claim 6, characterized in that: The crimping claw (9) is a cross-shaped structure.
8. The device for detecting the concentricity of the inner and outer circumferential surfaces of the straight cylindrical section on the clutch hub shaft according to claim 7, characterized in that: The lower end surface of the workbench (1) is provided with a plurality of supporting legs (1-1).