Torque motor shell contour detection device

Abstract

The utility model relates to a torque motor shell contour detection device, which is composed of a plurality of rotary detection devices and an image measuring instrument, each rotary detection device comprises a rotary mounting seat, a side plate, a bottom plate, a positioning rod, a nut, a rotary handle and a locking nut, the rotary mounting seat is arranged in a groove of the side plate, a small cylinder head end penetrates through a torque motor shell, and the image measuring instrument is arranged on the bottom plate. The fixing part is used for fixing a torque motor shell; the side plates are fixedly mounted on the bottom plate; the positioning rod penetrates through the locking nut and the semicircular groove of the rotary mounting seat and is used for positioning the torque motor shell; the nut is mounted on the positioning rod; and the rotary handle is mounted on the rotary mounting seat. According to the motor housing detection device of the utility model, single-piece detection can be changed into multi-piece detection, and therefore, the efficiency of part overall dimension detection can be significantly improved, the detection time can be shortened, and the cost can be reduced; in addition, collision damage caused by frequent disassembly and assembly during measurement of a single motor shell can be effectively avoided, and the appearance quality of the motor shell is ensured.

Description

Technical Field

[0001] This utility model relates to an electro-hydraulic servo valve detection device, specifically to a torque motor housing contour detection device. Background Technology

[0002] Electro-hydraulic servo valves are crucial control components in electro-hydraulic servo control systems, serving as both electro-hydraulic converters and power amplifiers. With advantages such as strong anti-contamination capabilities, high reliability, and long service life, electro-hydraulic servo valves are widely used in aerospace, aviation, and engineering machinery fields, and their performance directly impacts the performance of the electro-hydraulic servo system. The torque motor, a key component of the electro-hydraulic servo valve, is a vital element for converting electrical energy into mechanical energy. It primarily consists of a motor magnet assembly, armature assembly, jet tube assembly, magnetic pole assembly, and coil assembly. The torque motor housing is the core component of the motor magnet assembly.

[0003] The torque motor housing is an irregular hexahedral structure part, with a total of 72 dimensions on its six faces requiring inspection, of which approximately 35 can be inspected on a vision analyzer. Previously, the outline dimensions of the torque motor housing were measured individually using a single-piece clamping fixture held in place on the vision analyzer, requiring disassembly and replacement for each face change. Figure 1 As shown, with the single-piece clamping fixture, each measurement of the next side requires manual flipping of the fixture, and only one motor housing can be measured at a time. After measurement, the motor housing must be disassembled and a new one installed, which is very time-consuming and results in extremely low inspection efficiency. Therefore, a motor housing inspection device needs to be designed that can clamp multiple motor housings at once, effectively achieving rapid inspection and greatly improving production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a torque motor housing contour detection device. This device can effectively detect multiple motor housing parts simultaneously, avoiding frequent disassembly and assembly when measuring a single part. In addition, the device can rotate each motor housing 360 degrees to complete the detection of the motor housing contour dimensions (four sides), which greatly improves the detection efficiency and reduces the labor cost of inspection.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a torque motor housing contour detection device, comprising multiple rotary detection devices and an image measuring instrument. Each rotary detection device includes a rotary mounting base, a side plate, a base plate, a positioning rod, a nut, a rotary handle, and a locking nut. The rotary mounting base is inserted into the groove of the side plate, with the small cylindrical end passing through the torque motor housing for fixing the torque motor housing. The side plate is fixedly mounted on the base plate. The positioning rod passes through the locking nut and the semi-circular groove of the rotary mounting base for positioning the torque motor housing. The nut is mounted on the positioning rod. The rotary handle is mounted on the rotary mounting base.

[0006] Furthermore, the rotating mounting base is connected to the groove of the side plate via a rolling bearing.

[0007] Furthermore, the base plate is made of aluminum alloy or stainless steel; there are eight through slots on the base plate.

[0008] Furthermore, the torque motor housing is secured to the rotating mounting base using hex nuts and washers.

[0009] Furthermore, the side plates and the bottom plate are fixedly connected with screws.

[0010] Furthermore, the rotating surface of the rotating mounting base is provided with four mutually perpendicular through holes.

[0011] Furthermore, the rotating handle is installed on the threaded end of the rotating mounting base, the nut is installed on the threaded part of the positioning rod, passes through the lock nut, and is installed in the semi-circular groove of the rotating mounting base in the side plate. This is used to fix the position of the torque motor housing each time it is rotated to the corresponding position, thus playing a positioning role.

[0012] The beneficial effects of this utility model are:

[0013] The torque motor housing inspection device of this invention can change single-piece inspection to multi-piece inspection, which can significantly improve the efficiency of part contour dimension inspection, shorten inspection time, and reduce costs. In addition, it can effectively avoid the bumps and knocks caused by frequent disassembly and assembly when measuring a single motor housing, ensuring the appearance quality of the motor housing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a tooling for measuring a single motor housing;

[0015] Figure 2 This is a schematic diagram of the torque motor housing installation in the torque motor housing contour detection device;

[0016] Figure 3 This is a schematic diagram of a torque motor housing contour detection device;

[0017] Figure 4 This is a side view diagram of the torque motor housing installation;

[0018] In the diagram: 1—rotary mounting base; 2—side plate; 3—base plate; 4—positioning rod; 5—nut; 6—rotary handle; 7—locking nut; 8—torque motor housing; 9—rolling bearing; 10—internal hex nut; 11—washer. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 2 to 4 As shown in the figure, the torque motor housing contour detection device provided in this embodiment includes a rotary mounting base 1, a side plate 2, a base plate 3, a positioning rod 4, a nut 5, a rotary handle 6, a locking nut 7, a torque motor housing 8, a rolling bearing 9, an internal hex nut 10, a washer 11, and an image measuring instrument.

[0021] The rotary mounting base 1 is used to install the torque motor housing 8. After the torque motor housing 8 is installed, an internal hex nut 10 and a washer 11 need to be installed at the housing base to secure the torque motor housing 8. The side plate 2 is installed onto the base plate 3 with screws. The positioning rod 4 needs to pass through the locking nut 7 and the semi-circular groove of the rotary mounting base 1 to position the torque motor housing 8. The nut 5 is installed on the positioning rod 4. The rotating handle 6 is installed on the rotary mounting base 1. The rolling bearing 9 needs to pass through the rotary mounting base 1 and be installed together into the groove of the side plate 2 to drive the torque motor housing 8 to rotate more smoothly. The device with the torque motor housing is placed on the influence measuring instrument to complete the measurement of the full contour of the motor housing.

[0022] The base plate 3 is made of aluminum alloy or stainless steel. During processing, the upper and lower planes of the base plate 3 must meet the parallelism requirement of 0.01. Because there can be no obstructions when measuring the housing with an image measuring instrument, the base plate 3 must have through slots in 8 positions.

[0023] Side plate 2, which needs to be connected to base plate 3 with screws, must ensure that the verticality of the top and bottom surfaces of side plate 2 to the mounting surface is 0.01; the threaded holes and small holes on the bottom surface must ensure coaxiality of 0.02, and the same material as the base plate can be selected.

[0024] The rotating mounting base 1 needs to be inserted into the groove of the side plate 2 with a clearance fit. The small cylindrical end needs to pass through the torque motor housing 8 to fix the torque motor housing 8. Therefore, it is necessary to ensure that the upper and lower surfaces of the rotating mounting base 1 are perpendicular to it by 0.01, and that it is coaxial with the cylindrical end of the mounted rotating handle 6 by 0.01. The surface of the rotating body needs to be machined with four mutually perpendicular through holes, and the positional accuracy with the mounting post of the torque motor housing 8 needs to be 0.01. The purpose is to ensure that the torque motor housing 8 can be rotated to the same position every time, so as to realize the program measurement of the image instrument. Therefore, the rotating parts need to move repeatedly, so the mounting base is made of stainless steel, which has the advantage of wear resistance.

[0025] The positioning rod 4, rotating handle 6, locking nut 7, and nut 5 are all made of brass. The rotating handle 6 is installed on the threaded end of the rotating mounting base 1. The nut 5 is installed on the threaded part of the positioning rod 4, passes through the locking nut 7, and is installed in the semi-circular groove of the rotating mounting base 1 in the side plate 2. It is used to fix the position of the torque motor housing 8 each time it is rotated to the corresponding position, thus playing a positioning role.

[0026] Rolling bearing 9, internal hex nut 10, and washer 11 are all standard parts that are purchased separately. Rolling bearing 9 passes through rotating mounting base 1 and is installed together in the groove of side plate 2, so as to drive rotating mounting base 1 to rotate.

[0027] To achieve rapid detection of the contour dimensions of motor housings, this invention provides a device for detecting the contour of torque motor housings by changing the detection method from single-piece detection to multi-piece detection. Through the newly designed multi-piece, rotatable detection device, the simultaneous detection of multiple motor housings and rapid measurement of all four sides of the motor housing are achieved, effectively improving inspection efficiency, reducing unnecessary repetitive actions, and avoiding bumps and damage to the torque motor housings during measurement.

[0028] This invention provides a device for rapidly detecting the contour dimensions of a motor housing. This device enables rotation; by mounting a torque motor housing onto this device, the motor housing can be rotated, allowing for the detection of the contour dimensions of its four sides. The specific working principle is as follows: the torque motor housing is mounted on a rotary mounting base, and the rotation of the motor housing is achieved through the connection between the bearing and the side plate. Positioning rods mounted on the side plate are inserted into four evenly distributed positioning holes on the rotary mounting base (along with the original positioning pins on the rotary mounting base used to fix the motor housing), solving the angular positioning problem and enabling the detection of the contour dimensions of its four sides.

[0029] Figure 3The base plate in the middle is only half. The actual base plate is a whole plate with square grooves on both ends symmetrically distributed. The other end of the base plate can also be connected to the side plate, so that eight torque motor housings can be installed at the same time. After measuring one side with the image measurement program, the other side of the eight torque motor housings is rotated and the program measurement is started until the end.

[0030] The specific steps are as follows:

[0031] Step 1: Install the side plate 2 into the corresponding position on the base plate 3, and lock the two plates together with screws to ensure they are perpendicular.

[0032] Step 2: Install the torque motor housing 8 onto the rotary mounting base 1, and lock and fix the torque motor housing 8 with washers 11 and internal hex nuts 10. Up to 8 motor housings can be installed at the same time.

[0033] Step 3: First, place the rolling bearing 9 into the groove of the side plate 2, then install the rotating mounting base 1. The cylindrical rod of the rotating mounting base 1 passes through the rolling bearing 9 and extends out of the side plate 2. Finally, install the rotating handle 6 at the threaded end of the extended cylindrical rod.

[0034] Step 4: Install the locking nut 7 into the threaded hole on the bottom surface of the side plate 2, with the inner side of the locking nut 7 flush with the bottom surface of the side plate 2.

[0035] Step 5: Install the nut 5 onto the thread of the positioning rod 4, then pass the positioning rod 4 through the lock nut 7 and insert it into the semi-circular groove of the rotating mounting base 1 to position the motor housing 8.

[0036] Step Six: Place the installed 8 torque motor housings under the image measuring instrument and start the program to measure the dimensions of the first surface of the 8 motor housings simultaneously.

[0037] Step 7: After the measurement is completed, remove the device, move the positioning rod 4 outward slightly, turn the rotating handle 6 by hand to rotate the rotating mounting base 1, and then start measuring the dimensions of the remaining surfaces of the torque motor housing 8. Repeat this operation. After rotating four times, the measurement of the dimensions of all surfaces of the torque motor housing 8 can be completed.

Claims

1. A torque motor housing contour detection device, characterized in that: It consists of multiple rotary detection devices and an image measuring instrument. Each rotary detection device includes a rotary mounting base, a side plate, a base plate, a positioning rod, a nut, a rotary handle, and a locking nut. The rotary mounting base is installed in the groove of the side plate, and the small cylindrical end passes through the torque motor housing to fix the torque motor housing. The side plate is fixedly installed on the base plate. The positioning rod passes through the locking nut and the semi-circular groove of the rotary mounting base to position the torque motor housing. The nut is installed on the positioning rod. The rotary handle is installed on the rotary mounting base.

2. The torque motor housing contour detection device according to claim 1, characterized in that: The rotating mounting base is connected to the groove of the side plate by a rolling bearing.

3. The torque motor housing contour detection device according to claim 1, characterized in that: The base plate is made of aluminum alloy or stainless steel; there are eight through slots on the base plate.

4. The torque motor housing contour detection device according to claim 1, characterized in that: The torque motor housing is secured to the rotating mounting base using an internal hex nut and a washer.

5. The torque motor housing contour detection device according to claim 1, characterized in that: The side panels and the bottom plate are fixedly connected with screws.

6. The torque motor housing contour detection device according to claim 1, characterized in that: The rotating surface of the rotating mounting base has four mutually perpendicular through holes.

7. The torque motor housing contour detection device according to claim 1, characterized in that: The rotating handle is installed on the threaded end of the rotating mounting base, and the nut is installed on the threaded part of the positioning rod, passing through the lock nut and installed in the semi-circular groove of the rotating mounting base in the side plate. It is used to fix the position of the torque motor housing each time it is rotated to the corresponding position, thus playing a positioning role.

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