Forward-installed angular displacement sensor vibration test clamp

Abstract

The utility model discloses a forward-installed angular displacement sensor vibration test clamp, which comprises a mounting plate and a Z-shaped pressing plate, a plurality of mounting sinking grooves are arranged on the mounting plate, mounting screw holes are arranged at the bottoms of the mounting sinking grooves, pressing plate screw holes are respectively arranged at positions outside two opposite sides of each mounting sinking groove on the mounting plate, and the Z-shaped pressing plate is arranged on the Z-shaped pressing plate. A plurality of pressing plate screws penetrate through pressing plate through holes in one transverse plate of the corresponding Z-shaped pressing plate and then are connected with corresponding pressing plate screw holes, and an output shaft of the angular displacement sensor is clamped between the ends of the other transverse plates of the two Z-shaped pressing plates outside the two opposite sides of the same installation sinking groove. The device is convenient to operate, the surface of the housing of the angular displacement sensor is not liable to be damaged, and the surface of the output shaft is not liable to be damaged; during a vibration test, the angular displacement sensor is in an upright state which is the same as the application state of the angular displacement sensor in practical application, so that the accuracy of a vibration test result is improved.

Description

Technical Field

[0001] The utility model relates to an angular displacement sensor test fixture, in particular to a positive-mounted angular displacement sensor vibration test fixture. Background Art

[0002] When performing a vibration test on an angular displacement sensor (or potentiometer), the sensor housing and output shaft must be fixed. Figure 1 and Figure 2 As shown, the conventional angular displacement sensor vibration test fixture comprises a base plate 1, a movable pressing pin 6, a tightening screw 5 and a pressing plate 4. The base plate 1 is provided with a plurality of base plate grooves 2 for placing the angular displacement sensors 3. When in use, the plurality of angular displacement sensors 3 are respectively inverted and embedded into the plurality of base plate grooves 2. At this time, the output shaft 7 of the angular displacement sensor 3 is downwardly placed at the lower part of the base plate groove 2. The tightening screw 5 is rotated to push the movable pressing pin 6 to tighten the output shaft 7 in the base plate groove 2. Then, the two pressing plates 4 are connected to the screw holes on the base plate 1 located on the opposite sides of the base plate groove 2 by screws, and the bottom of the angular displacement sensor 3 is tightened, that is, the installation of the angular displacement sensor 3 is completed. Then, the base plate 1 is installed on the vibration equipment, and the vibration test can be started. Since the angular displacement sensor 3 is in an inverted state, this conventional angular displacement sensor vibration test fixture is also called an inverted angular displacement sensor vibration test fixture.

[0003] The defects of the above-mentioned traditional angular displacement sensor vibration test fixture are: on the one hand, since the angular displacement sensor 3 is in an inverted state embedded in the bottom plate groove 2, although the size of the bottom plate groove 2 is larger than the angular displacement sensor 3, it cannot be much larger, so the outer shell surface of the angular displacement sensor 3 may be damaged during the installation and removal of the angular displacement sensor 3 and the vibration test. The output shaft 7 of the angular displacement sensor 3 is tightly clamped in the bottom plate groove 2, and the line of sight is poor, which can easily damage the surface of the output shaft 7; on the other hand, in the vibration test, the angular displacement sensor 3 is in an inverted state, while in actual application, the angular displacement sensor 3 is generally in an upright state. The actual application states of the two are different, which will reduce the accuracy of the vibration test results. Utility Model Content

[0004] The purpose of the utility model is to provide a positive-mounted angular displacement sensor vibration test fixture which is easy to install and has accurate test results in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A vibration test fixture for an upright angular displacement sensor comprises a mounting plate and a "Z"-shaped pressure plate. A plurality of mounting recesses for mounting the angular displacement sensor are arranged on the transverse mounting plate. Mounting screw holes are arranged on the bottom of the mounting recesses at positions corresponding to the mounting through holes on the mounting lugs on the opposite sides of the bottom of the angular displacement sensor. A pressure plate screw hole for mounting a "Z"-shaped pressure plate is arranged on the mounting plate at positions outside the opposite sides of each mounting recess. A plurality of pressure plate screws are respectively passed through the pressure plate through holes on a transverse plate of a corresponding "Z"-shaped pressure plate and connected to the corresponding pressure plate screw holes. The output shaft of the angular displacement sensor is clamped between the ends of the other transverse plates of the two "Z"-shaped pressure plates outside the opposite sides of the same mounting recess.

[0007] Preferably, in order to enable the "Z"-shaped pressure plate to move in a limited position so as to have better adaptability, a limiting groove is provided on the mounting plate at a position corresponding to the "Z"-shaped pressure plate, and the connecting line between the two limiting grooves on the opposite sides of the same mounting groove is in the same length direction as the limiting groove, and the pressure plate screw hole is provided at the bottom of the limiting groove, and a cross plate of a plurality of the "Z"-shaped pressure plates is respectively placed in a plurality of the limiting grooves and can move in a limited position in the length direction of the limiting groove.

[0008] Preferably, in order to ensure more stable installation, the number of the pressure plate screw holes at the bottom of each limiting groove is two.

[0009] Preferably, in order to facilitate processing, the two limiting grooves located between two adjacent installation recesses and on the same straight line are connected to each other.

[0010] Preferably, in order to make the "Z"-shaped pressure plate have better adaptability during installation, the pressure plate through hole is a strip through hole and its length direction is the same as the connection direction between the two "Z"-shaped pressure plates outside the opposite sides of the same installation groove.

[0011] The beneficial effects of the utility model are:

[0012] The utility model arranges a mounting groove on the mounting plate, and installs "Z"-shaped pressing plates on the opposite sides of the mounting groove. When in use, the angular displacement sensor is installed upright in the mounting groove, and the mounting lug at the bottom of the angular displacement sensor is connected to the groove bottom of the mounting groove by a locking screw. The output shaft of the angular displacement sensor is reliably clamped by two "Z"-shaped pressing plates, so that the upright installation of the angular displacement sensor is realized. The size of the mounting groove can be much larger than the angular displacement sensor, which is convenient for operation and is not easy to damage the shell surface of the angular displacement sensor. Moreover, the clamping and positioning of the output shaft of the angular displacement sensor is carried out above the mounting plate, with a good line of sight and is not easy to damage the surface of the output shaft. During the vibration test, the angular displacement sensor is in an upright state, which is the same as the application state of the angular displacement sensor in actual applications, thereby improving the accuracy of the vibration test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a stereoscopic diagram of the traditional angular displacement sensor vibration test fixture in use;

[0014] Figure 2 This is the main cross-sectional view of the traditional angular displacement sensor vibration test fixture when used;

[0015] Figure 3 This is a stereoscopic diagram of the vibration test fixture of the upright angular displacement sensor of the utility model when it is in use;

[0016] Figure 4 It is a top view of the upright angular displacement sensor vibration test fixture of the utility model when it is used;

[0017] Figure 5 yes Figure 4 AA section view in. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] like Figure 1-Figure 5As shown, the upright angular displacement sensor vibration test fixture of the utility model includes a mounting plate 8 and a "Z"-shaped pressure plate 11. A plurality of mounting recesses 12 for mounting the angular displacement sensor 3 are provided on the transverse mounting plate 8. Mounting screw holes (not visible in the figure) are provided at positions corresponding to the mounting through holes on the mounting lugs 13 on the opposite sides of the bottom of the angular displacement sensor 3 on the bottom of the mounting recesses 12. Positions on the mounting plate 8 located outside the opposite sides of each mounting recess 12 are provided with pressure plate screw holes 14 for mounting a "Z"-shaped pressure plate 11. A plurality of pressure plate screws (not shown in the figure) are respectively passed through the pressure plate through holes 10 on a transverse plate of the corresponding "Z"-shaped pressure plate 11 and then connected to the corresponding pressure plate screw holes 14. The output shaft 7 of the angular displacement sensor 3 is clamped between the other transverse plate ends of the two "Z"-shaped pressure plates 11 outside the same mounting recess 12.

[0020] like Figure 1-Figure 5 As shown, the utility model also discloses the following more optimized specific structures:

[0021] In order to enable the "Z"-shaped pressure plate 11 to move in a limited position so as to have better adaptability, a limiting groove 9 is provided on the mounting plate 8 at a position corresponding to the "Z"-shaped pressure plate 11. The connecting line between the two limiting grooves 9 on the opposite sides of the same mounting groove 12 is in the same length direction as the limiting groove 9. The pressure plate screw hole 14 is provided at the bottom of the limiting groove 9. A cross plate of multiple "Z"-shaped pressure plates 11 is respectively placed in multiple limiting grooves 9 and can move in a limited position in the length direction of the limiting groove 9.

[0022] For more stable installation, each limiting groove 9 has two pressing plate screw holes 14 at the bottom.

[0023] For the convenience of processing, two limiting grooves 9 located between two adjacent mounting recesses 12 and on the same straight line are connected to each other.

[0024] In order to make the "Z"-shaped pressure plate 11 have better adaptability during installation, the pressure plate through hole 10 is a strip through hole and its length direction is the same as the connection direction between the two "Z"-shaped pressure plates 11 outside the same installation groove 12 on opposite sides.

[0025] like Figure 1-Figure 5As shown, when in use, multiple angular displacement sensors 3 are placed upright in multiple mounting grooves 12 respectively. At this time, the output shaft 7 of the angular displacement sensor 3 is upward and located above the mounting plate 8. Multiple mounting screws (not shown in the figure) are respectively passed through the mounting through holes on the mounting lugs 13 on the opposite sides of the bottom of the corresponding angular displacement sensor 3 and connected with the corresponding mounting screw holes on the bottom of the mounting groove 12. Then, one cross plate of the two "Z"-shaped pressure plates 11 is respectively placed in the limiting groove 9 outside the opposite sides of a mounting groove 12, and the position of the "Z"-shaped pressure plate 11 is adjusted so that the other cross plate end of the two "Z"-shaped pressure plates 11 is in close contact with the outer walls on the opposite sides of the output shaft 7 of the angular displacement sensor 3. Then, multiple pressure plate screws are respectively passed through the pressure plate through holes 10 on one cross plate of the corresponding "Z"-shaped pressure plate 11 and connected with the pressure plate screw holes 14 in the corresponding limiting groove 9. After all are installed, the installation of all angular displacement sensors 3 is completed. Then, the mounting plate 8 is installed on the vibration equipment, and the vibration test can be started.

[0026] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A vibration test fixture for a positive-mounted angular displacement sensor, comprising a mounting plate, characterized in that: It also includes a "Z"-shaped pressure plate, and a plurality of mounting grooves for mounting angular displacement sensors are provided on the horizontal mounting plate. Mounting screw holes are provided on the bottom of the mounting grooves at positions corresponding to the mounting through holes on the mounting lugs on the opposite sides of the bottom of the angular displacement sensor. Pressure plate screw holes for mounting a "Z"-shaped pressure plate are provided on the mounting plate at positions outside the opposite sides of each mounting groove, respectively. A plurality of pressure plate screws are respectively passed through the pressure plate through holes on a horizontal plate of a corresponding "Z"-shaped pressure plate and connected to the corresponding pressure plate screw holes. The output shaft of the angular displacement sensor is clamped between the ends of the other horizontal plates of the two "Z"-shaped pressure plates outside the opposite sides of the same mounting groove.

2. The upright angular displacement sensor vibration test fixture according to claim 1, characterized in that: A limiting groove is provided on the top of the mounting plate at a position corresponding to the "Z"-shaped pressure plate, and a connecting line between two limiting grooves on opposite sides of the same mounting groove is in the same length direction as the limiting groove, and the pressure plate screw hole is provided at the bottom of the limiting groove, and a cross plate of a plurality of the "Z"-shaped pressure plates is respectively placed in a plurality of the limiting grooves and can be limitedly moved in the length direction of the limiting groove.

3. The upright angular displacement sensor vibration test fixture according to claim 2, characterized in that: The number of the pressure plate screw holes at the bottom of each limiting groove is two.

4. The upright angular displacement sensor vibration test fixture according to claim 2, characterized in that: The two limiting grooves located between two adjacent installation sinks and on the same straight line are connected to each other.

5. The upright angular displacement sensor vibration test fixture according to any one of claims 1 to 4, characterized in that: The pressure plate through hole is a strip-shaped through hole and its length direction is the same as the direction of the connection line between the two "Z"-shaped pressure plates outside the opposite sides of the same installation sink.

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