CN117781822A - Axial clearance testing device and method for transmission assembly of angular displacement sensor - Google Patents
Axial clearance testing device and method for transmission assembly of angular displacement sensor Download PDFInfo
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- CN117781822A CN117781822A CN202311614558.4A CN202311614558A CN117781822A CN 117781822 A CN117781822 A CN 117781822A CN 202311614558 A CN202311614558 A CN 202311614558A CN 117781822 A CN117781822 A CN 117781822A
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Abstract
The invention belongs to the field of angular displacement sensor testing, and discloses an axial clearance testing device and an axial clearance testing method for a transmission assembly of an angular displacement sensor, wherein the axial clearance testing device comprises a clamp assembly and a push-pull force meter assembly; the fixture assembly is arranged on the base and comprises a fixture bottom plate, a stand column, a digital display dial indicator, an installation seat, a dial indicator seat, a cushion block, a spring and a pressing block; the stand column is fixed on the clamp bottom plate, the mounting seat is fixed on the stand column, the dial indicator seat is fixed on the mounting seat, the digital display dial indicator is fixed on the dial indicator seat, a boss is arranged on the dial indicator seat, a round hole is arranged in the center of the boss, and the probe of the digital display dial indicator extends out of the boss through the round hole; the angular displacement sensor to be measured is positioned on the dial gauge seat through the boss, cushion blocks are arranged on two sides of the dial gauge seat, a pressing block is arranged on the cushion blocks and used for fixing the angular displacement sensor to be measured, and the push-pull force gauge assembly is used for applying load to the angular displacement sensor to be measured. The invention can realize full-automatic test and has the characteristics of high test precision and high test speed.
Description
Technical Field
The invention belongs to the field of angular displacement sensor testing, and relates to an axial clearance testing device and method for a transmission assembly of an angular displacement sensor.
Background
Angular displacement sensors are of many types and generally have a housing and a shaft that rotates relative to the housing, the sensor outputting an electrical signal proportional to the rotation angle. The angular displacement sensor shell and the rotating shaft are supported by adopting bearings, an axial gap and a radial gap are formed, and the size of the gap greatly influences the accuracy and the linearity of the output signal of the angular displacement sensor.
In order to ensure the product performance, the axial clearance after the transmission assembly is installed is measured in the assembly process. Proved by mass production practice, the axial clearance is controlled within 0.1mm, and the assembly and inspection requirements are extremely high.
The traditional method carries out manual measurement through tools such as bench clamp, dial indicator frame, handheld push-pull force meter and the like, and has the defects of inconvenient operation, low efficiency, poor consistency of test data and the like. In order to realize quick and accurate positioning and improve the testing efficiency, an axial clearance testing device for a transmission component of an angular displacement sensor is designed and developed.
Disclosure of Invention
The purpose of the invention is that: the automatic device can apply bidirectional stress along the axial direction of a transmission component of the angular displacement sensor to be measured, and simultaneously measure the axial displacement.
The technical scheme of the invention is as follows: an axial clearance testing device of an angular displacement sensor transmission assembly comprises a clamp assembly and a push-pull force meter assembly;
the fixture assembly is arranged on the base and comprises a fixture bottom plate, a stand column, a digital display dial indicator, an installation seat, a dial indicator seat, a cushion block, a spring and a pressing block; the digital display dial indicator is fixed on the dial indicator seat, a boss is arranged on the dial indicator seat, a round hole is arranged in the center of the boss, and a probe of the digital display dial indicator extends out of the boss through the round hole; the angular displacement sensor to be measured is positioned on the dial gauge seat through the boss, two sides of the dial gauge seat are provided with cushion blocks, the cushion blocks are provided with pressing blocks for fixing the angular displacement sensor to be measured, and the push-pull force gauge assembly is used for applying load to the angular displacement sensor to be measured.
Further, a threaded hole is formed in the cushion block, and a spring is arranged in the threaded hole.
Further, a sliding groove is formed in the pressing block, and the compression screw penetrates through the sliding groove and is fixed on the cushion block.
Further, the pull rod is provided with the screws which are not separated, and the number of the screws is 2.
Further, a boss is arranged on the dial indicator seat, a round hole is arranged in the center of the boss, and the digital display dial indicator probe extends out of the boss through the round hole.
Further, the digital display dial indicator is in 232 communication with the control unit and is used for obtaining the reading of the digital display dial indicator.
Further, the testing device also comprises a control unit and a computer.
Further, the push-pull force meter assembly is arranged on the control unit and comprises a push-pull head, a push-pull force sensor, a connecting rod, a push-pull force meter, an electric sliding table, an induction piece, a photoelectric induction switch and a stepping motor. The push-pull head is mechanically connected with the push-pull force sensor, the push-pull force sensor is mechanically connected with the connecting rod, the connecting rod is mechanically connected with the push-pull force meter, the push-pull force meter is mechanically connected with the sliding table of the electric sliding table, and the rotating shaft of the electric sliding table is connected with the rotating shaft of the stepping motor.
Further, the push-pull head is in a groove structure and is in up-and-down contact with a pull rod in the clamp assembly to provide push-pull force.
Further, the push-pull gauge communicates 232 with the control unit for obtaining real-time push-pull force.
Further, be equipped with photoelectric sensing switch on the electronic slip table for response slip table running position, photoelectric sensing switch and control unit electrical connection.
Further, the stepping motor is electrically connected with the control unit and used for driving the rotating shaft of the electric sliding table to rotate.
Further, the computer is in Ethernet communication with the control unit for monitoring the device operating status, displaying and recording the test data.
The axial clearance testing method of the transmission assembly of the angular displacement sensor adopts the axial clearance testing device of the transmission assembly of the angular displacement sensor, the computer and the control unit carry out Ethernet communication, when in testing, the electric sliding table is driven to return to the original position, and the testing is started after the angular displacement sensor to be tested is installed; the control unit drives the electric sliding table to move downwards, stops after the set thrust is reached, collects the reading of the first dial indicator, drives the electric sliding table to move upwards, stops after the set tensile force is reached, collects the reading of the second dial indicator, and the absolute value of the difference value of the two dial indicator readings is the axial gap of the test; the computer can be provided with values of pushing force and pulling force during reading, and meanwhile, the running state of the device is monitored, and test data are displayed and recorded.
The invention has the advantages and beneficial effects that: the axial clearance testing device for the transmission assembly of the angular displacement sensor realizes quick and accurate positioning and clamping of a product to be tested, can automatically control the up-and-down motion of the push-pull force meter assembly, provides set push-pull force and set pull force for the transmission assembly of the angular displacement sensor to be tested, simultaneously measures the displacement of the shaft of the transmission assembly, and can realize an automatic testing function. The device has the advantages of simple structure, convenient clamping, great improvement of test efficiency and great practical application value. According to the invention, through reliable clamping and fixing of the dial indicator, the detection consistency can be greatly improved, and the accuracy of the detection result can be improved.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is an exploded view of the clamp assembly;
FIG. 3 is a detailed view of a push-pull force gauge assembly;
the device comprises a 1-base, a 2-clamp assembly, a 3-push-pull gauge assembly, a 4-control unit, a 5-panel, a 6-computer, a 201-clamp base plate, a 202-upright post, a 203-digital display dial indicator, a 204-mounting seat, a 205-dial indicator seat, a 206-cushion block, a 207-spring, a 208-gasket, a 209-press block, a 210-compression screw, a 211-pull rod, a 221-non-release screw, a 213-angular displacement sensor to be measured, a 301-pull head, a 302-push-pull force sensor, a 303-connecting rod, a 304-push-pull gauge, a 305-electric sliding table, a 306-sensing piece, a 307-photoelectric sensing switch and a 308-stepping motor.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention particularly designs an axial clearance testing device for an angular displacement sensor transmission assembly, which is used for testing the axial clearance of the angular displacement sensor transmission assembly. The axial clearance testing device of the angular displacement sensor transmission assembly comprises a base 1, a clamp assembly 2, a push-pull force gauge assembly 3, a control unit 4, a panel 5 and a computer 6. Wherein, the clamp assembly 2 and the control unit 4 are arranged on the base; the push-pull force meter assembly 3 and the panel 5 are arranged on the control unit 4; the computer 6 is electrically connected to the control unit 4. An electric sliding table is arranged on the push-pull force meter assembly 3, and the electric sliding table moves up and down to apply axial push-pull force to the transmission assembly of the measured angular displacement sensor. The fixture component 2 is provided with a digital display dial indicator for detecting the displacement of the transmission shaft of the transmission component of the angular displacement sensor to be detected. The device is characterized by high testing precision and high testing speed, and the efficiency and consistency of the test are obviously improved.
Example 1
An axial clearance testing device for a transmission assembly of an angular displacement sensor has the structure shown in figures 1-3. The fixture assembly 2 is provided with a bottom plate 201 and a stand column 202, the bottom plate 201 is mechanically connected with the base 1, the stand column 202 is mechanically connected with the bottom plate 201, a mounting seat 204 is mechanically connected with the stand column 202, a dial indicator seat 205 is mechanically connected with the mounting seat 204, a boss is arranged above the dial indicator seat 205, an angular displacement sensor 213 to be measured is positioned above the dial indicator seat 205 through the boss, a center hole is formed in the center of the boss, a digital display dial indicator 203 is fixed on the dial indicator seat 205 through the center hole, cushion blocks 206 are arranged on two sides of the mounting seat 204, threaded holes are formed in the cushion blocks 206, springs 207 are arranged in the threaded holes, sliding grooves are formed in the pressing blocks 209, and the sliding grooves are in sliding connection with pressing screws 210 fixed on the cushion blocks 206.
After the test is finished, the screw is screwed anticlockwise, the spring 207 jacks up the pressing block 209, and the angular displacement sensor 213 to be measured is automatically released.
The probe of the digital display dial gauge 203 is elastically contacted with the rotating shaft of the transmission component of the angular displacement sensor 213 to be measured, and is used for measuring the axial displacement of the transmission shaft.
The angular displacement sensor 213 to be measured is provided with a pull rod 211, 2 non-falling screws 212 are arranged on the pull rod, and the top of the pull rod is of a cap-shaped structure.
The base plate 1 is provided with a control unit 4, the control unit 4 is provided with an electric sliding table 305, the electric sliding table 305 is provided with a push-pull force meter 304, the push-pull force meter 304 is provided with a connecting rod 303, the connecting rod 303 is mechanically connected with the push-pull force meter 304, the push-pull force sensor 302 is mechanically connected with the connecting rod 303, and the push-pull head 301 is mechanically connected with the push-pull force sensor 302.
The electric sliding table 305 is provided with a stepping motor 308, the control unit 4 drives the stepping motor 308 to rotate, the electric sliding table 305 moves up and down, the push-pull force gauge 304, the connecting rod 303, the push-pull force sensor 302 and the push-pull head 301 follow-up, the push-pull head 301 is of a groove structure, the cap-shaped structure of the pull rod 211 is arranged in the groove structure, and the push-pull head 301 moves up and down to apply axial pushing force and pulling force to the pull rod 211.
The push-pull gauge 304 communicates 232 with the control unit 4 for controlling the amount of push-pull force during testing.
The digital display dial indicator 203 and the control unit 4 are used for 232 communication and are used for collecting real-time displacement.
The electric sliding table 305 is provided with an induction piece 306 and a photoelectric induction switch 307 for indicating the origin and the upper and lower limit positions.
The computer 6 communicates with the control unit 4 via ethernet, and when testing, the electric sliding table 305 is driven to return to the original position, and the angular displacement sensor 213 to be tested is installed, and then testing is started. The control unit 4 drives the electric sliding table 305 to move downwards, stops after the set thrust is reached, collects the dial indicator reading 1 at the same time, drives the electric sliding table 305 to move upwards, stops after the set tension is reached, collects the dial indicator reading 2 at the same time, and the absolute value of the difference value between the dial indicator reading 1 and the dial indicator reading 2 is the axial clearance of the test, and after the test is finished once, the control unit 4 drives the electric sliding table to return to the original position and wait for the next measurement. The computer 6 can set the values of pushing force and pulling force during reading, and monitor the running state of the device, display and record the test data.
The foregoing detailed description or examples are merely illustrative of the technical solutions of the present invention and are not intended to limit the present application, and the detailed description is not to be construed as a conventional technical means in the art; those of ordinary skill in the art will appreciate that: based on the design concept of the present application, the technical solutions described in the foregoing embodiments should be adaptively modified, or some or all of the technical features thereof may be equivalently replaced, where these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An angular displacement sensor drive assembly axial clearance testing arrangement, its characterized in that: comprises a clamp assembly (2) and a push-pull force meter assembly (3);
the fixture assembly (2) comprises a fixture bottom plate (201), a stand column (202), a digital display dial indicator (203), a mounting seat (204), a dial indicator seat (205), a cushion block (206), a spring (207) and a pressing block (209); the digital display dial indicator comprises a stand column (202) fixed on a clamp bottom plate (201), a mounting seat (204) fixed on the stand column, a dial indicator seat (205) fixed on the mounting seat (204), a digital display dial indicator (203) fixed on the dial indicator seat (205), a boss arranged on the dial indicator seat (205), a round hole arranged in the center of the boss, and a probe of the digital display dial indicator (203) extending out of the boss through the round hole; the angular displacement sensor (213) to be measured is positioned on the dial gauge seat (205) through the boss, two sides of the dial gauge seat (205) are provided with cushion blocks (206), the cushion blocks (206) are provided with press blocks (209) for fixing the angular displacement sensor (213) to be measured, and the push-pull force gauge assembly (3) is used for applying load to the angular displacement sensor (213) to be measured.
2. The angular displacement sensor transmission assembly axial gap testing device of claim 1, wherein: the transmission component of the angular displacement sensor (213) to be measured is also provided with a pull rod (211), and the pull rod (211) is provided with a screw (212) which is not separated.
3. The angular displacement sensor transmission assembly axial gap testing device of claim 1, wherein: the probe of the digital display dial indicator (203) is elastically contacted with the rotating shaft of the transmission component of the angular displacement sensor (213) to be measured and is used for measuring the axial displacement of the rotating shaft.
4. An angular displacement sensor transmission assembly axial clearance testing apparatus as claimed in claim 1, wherein: the push-pull force gauge assembly (3) comprises a push-pull head (301), a push-pull force sensor (302), a connecting rod (303), a push-pull force gauge (304) and an electric sliding table (305).
5. The device for testing axial clearance of a transmission assembly of an angular displacement sensor according to claim 4, wherein the push-pull head (301) has a groove-shaped structure.
6. The device for testing axial clearance of angular displacement sensor transmission assembly according to claim 4, wherein the electric sliding table (305) is controlled by push-pull force measured by a push-pull force meter (304).
7. The axial clearance testing device for the transmission assembly of the angular displacement sensor according to claim 4, wherein the electric sliding table (305) is provided with an induction piece (306), and the base of the electric sliding table (305) is provided with a photoelectric induction switch (307) for indicating the origin and the upper and lower limit positions.
8. The device for testing axial clearance of a transmission assembly of an angular displacement sensor according to claim 1, further comprising a control unit and a computer.
9. An axial clearance testing method for an angular displacement sensor transmission assembly, which adopts the axial clearance testing device for the angular displacement sensor transmission assembly according to any one of claims 1 to 8, and is characterized in that: the computer (6) is communicated with the control unit (4) in an Ethernet way, during testing, the electric sliding table (305) is driven to return to the original position, and testing is started after the angular displacement sensor (213) to be tested is installed; the control unit (4) drives the electric sliding table (305) to move downwards, stops after the set thrust is reached, collects the reading of the first dial indicator, drives the electric sliding table (305) to move upwards, stops after the set thrust is reached, collects the reading of the second dial indicator, the absolute value of the reading difference value of the two dial indicators is the axial gap for testing, and after the primary testing is finished, the control unit (4) drives the electric sliding table to return to the original point position for waiting for the next measurement; the computer (6) can be provided with values of pushing force and pulling force during reading, and meanwhile, the running state of the device is monitored, and test data are displayed and recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311614558.4A CN117781822A (en) | 2023-11-28 | 2023-11-28 | Axial clearance testing device and method for transmission assembly of angular displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311614558.4A CN117781822A (en) | 2023-11-28 | 2023-11-28 | Axial clearance testing device and method for transmission assembly of angular displacement sensor |
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| Publication Number | Publication Date |
|---|---|
| CN117781822A true CN117781822A (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311614558.4A Pending CN117781822A (en) | 2023-11-28 | 2023-11-28 | Axial clearance testing device and method for transmission assembly of angular displacement sensor |
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| Country | Link |
|---|---|
| CN (1) | CN117781822A (en) |
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- 2023-11-28 CN CN202311614558.4A patent/CN117781822A/en active Pending
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