Inductance type encoder testing device

Abstract

The utility model discloses an inductive encoder testing device, relates to the technical field of encoder testing equipment, and solves the technical problems of low testing efficiency, narrow application range and poor testing effect of the conventional inductive encoder testing device. Comprising a machine body, a driving device and a rotor adjusting device arranged in the machine body and connected to the driving device. The stator adjusting device is arranged on the surface of the machine body, and the stator adjusting device comprises an adjusting ring plate rotationally arranged on the surface of the machine body, a locking screw rod arranged on the adjusting ring plate and a plurality of limiting connecting rods arranged on the adjusting ring plate; a sliding roller, a stator shaft and a limiting column are arranged on the bottom surface of each limiting connecting rod; according to the design of the utility model, the whole testing device can be quickly adjusted through the rotor adjusting device and the stator adjusting device, so that encoder circuit boards with different sizes can be tested, and the testing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of encoder testing equipment, and particularly relates to an inductive encoder testing device. Background Art

[0002] The inductive encoder utilizes the principle of electromagnetic induction to measure the position information of a moving component through the interaction between a magnetic induction coil and a code disk. The measurement of the inductive encoder is based on the relationship between magnetic induction intensity and position, so it has high precision and reliability. The inductive encoder adopts PCB technology to realize dense coil windings. This unique non-contact measurement technology of electromagnetic induction makes the inductive encoder have the advantages of small thickness, light weight, low power consumption, high precision, etc., and can achieve highly accurate and reliable measurement under harsh conditions. Before the encoder is used, it is necessary to test the encoder circuit board to ensure that the encoder can work normally. The hollow inductive encoder is divided into two parts: a stator and a rotor, both of which are flat rings and are respectively fixed to the rotating end and the fixed end of the test platform. When testing the encoder circuit board, usually the encoder is connected to the test equipment, and then the shaft of the encoder is rotated. Whether the encoder circuit board can be used normally can be judged through the output signal of the test equipment.

[0003] The current encoder circuit board testing equipment includes the following two methods:

[0004] The first method: an electric turntable test platform. The encoder circuit board is fixed to the test turntable, and the motor on the test turntable drives the encoder rotor to rotate, so that the signal in the encoder stator coil can be read. After processing, it can be judged whether the encoder is normal. When testing encoders of different sizes, different toolings need to be replaced, which is time-consuming and the test efficiency is low;

[0005] The second method: a manual test platform. The encoder is fixed to the test platform, and the encoder is rotated manually to achieve the test effect. Manual testing is unstable and the test effect is poor; Therefore, an inductive encoder circuit board testing device is needed, which can quickly test encoders of different sizes without replacing tooling. Therefore, based on the above problems, we designed an inductive encoder testing device. Content of the Utility Model

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an inductive encoder testing device, which solves the technical problems of low test efficiency, narrow application range and poor test effect of the existing inductive encoder testing device.

[0007] To achieve the above object, an inductive encoder testing device is proposed according to an embodiment of the first aspect of the present invention, which includes a machine body, a driving device, and a rotor adjusting device disposed in the machine body and connected to the driving device;

[0008] It further includes:

[0009] A stator adjusting device, disposed on the surface of the machine body, the stator adjusting device includes an adjusting ring plate rotatably disposed on the surface of the machine body, a locking screw disposed on the adjusting ring plate, and several limiting connecting rods disposed on the adjusting ring plate;

[0010] Wherein, a sliding roller, a stator shaft, and a limiting column are respectively disposed on the bottom surface of each of the limiting connecting rods.

[0011] Further improvement lies in that the driving device includes a driving motor vertically disposed in the machine body and a rotor shaft disposed at the main shaft end of the driving motor, and the rotor adjusting device is disposed on the rotor shaft.

[0012] Further improvement lies in that several grooves are obliquely disposed on the surface of the adjusting ring plate, and the sliding roller of each of the limiting connecting rods is respectively located in each groove.

[0013] Further improvement lies in that each of the grooves is circularly distributed about the center of the machine body.

[0014] Further improvement lies in that an adjusting handle is disposed on the adjusting ring plate.

[0015] Further improvement lies in that a threaded hole for installing the locking screw is provided on the machine body.

[0016] Further improvement lies in that a fixing groove for installing the locking screw is penetrated through the adjusting ring plate.

[0017] Compared with the prior art, the beneficial effect of the present invention is:

[0018] Through the testing device designed as above, the present invention can quickly test inductive encoder circuit boards of different sizes through the stator adjusting device and the rotor adjusting device, and the adjusting device is convenient to adjust, thereby greatly improving the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic top view structure diagram of the stator adjusting device of the present invention for fixing a reference encoder;

[0021] Figure 3 is a schematic cross-sectional structure diagram of the present invention;

[0022] Figure 4 It is a schematic top view structure diagram of the assembly reference encoder and the measured reference encoder of the present utility model;

[0023] Figure 5 It is a schematic structure diagram of the stator adjusting device of the present utility model.

[0024] Markings in the figure:

[0025] 1. Body; 11. Threaded hole; 2. Rotor adjusting device; 3. Driving device; 31. Driving motor; 32. Rotor shaft; 4. Stator adjusting device; 41. Adjusting ring plate; 411. Groove; 412. Fixed groove; 42. Locking screw; 43. Limit connecting rod; 431. Sliding roller; 432. Stator shaft; 433. Limit post; 44. Adjusting handle. Specific implementation mode

[0026] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.

[0027] As Figure 1 and Figure 3 shown, an inductive encoder test device includes a body 1, a driving device 3, and a rotor adjusting device 2 disposed in the body 1 and connected to the driving device 3;

[0028] Among them, the driving device 3 includes a driving motor 31 vertically disposed in the body 1 and a rotor shaft 32 disposed at the main shaft end of the driving motor 31, and the rotor adjusting device 2 is disposed on the rotor shaft 32;

[0029] As Figure 1 , Figure 4 and Figure 5 shown, during implementation, it includes: a stator adjusting device 4, disposed on the surface of the body 1, and the stator adjusting device 4 includes an adjusting ring plate 41 rotatably disposed on the surface of the body 1, a locking screw 42 disposed on the adjusting ring plate 41, and several limit connecting rods 43;

[0030] Among them, several grooves 411 are obliquely disposed on the surface of the adjusting ring plate 41, and a sliding roller 431, a stator shaft 432, and a limit post 433 are respectively disposed on the bottom surface of each limit connecting rod 43;

[0031] Specifically, as a preferred embodiment, the stator shaft 432 of each limit connecting rod 43 is rotatably disposed on the surface of the body 1 through a bearing, and the stator shaft 432 is located in the port of the adjustment ring plate 41, and the inner wall surface contacts the inner wall surface of the adjustment ring plate 41;

[0032] Specifically, as a preferred embodiment, each limiting connecting rod 43 is sequentially installed behind the adjusting ring plate 41, and the sliding roller 431 of each limiting connecting rod 43 is respectively located in each groove 411, and when the encoder circuit board to be tested is installed in the stator adjustment device 4, the limiting column 433 at the end of each limiting connecting rod 43 is in contact with the outer wall surface of the encoder circuit board to be tested;

[0033] Specifically, as a preferred embodiment, each groove 411 is distributed in a circular shape with respect to the center of the body 1, and is used to cooperate with the movement of the sliding roller 431 at the end of each limiting connecting rod 43;

[0034] Specifically, as a preferred embodiment, an adjustment handle 44 is provided on the adjustment ring plate 41 for moving the adjustment ring plate 41, a threaded hole 11 for mounting a locking screw 42 is provided on the body 1, and a fixing groove 412 for mounting the locking screw 42 is provided through the adjustment ring plate 41. After fixing, the size adjustment is completed by tightening the locking screw 42.

[0035] like Figures 1 to 5 As shown, in this embodiment, the stator adjustment device 4 and the rotor adjustment device 2 in the application document are not limited to four limit connecting rods 43, and can be three, five or more. It should be noted that the structure of the rotor adjustment device 2 is the same as that of the stator adjustment device 4, and the reference encoder is fixed in the body 1 in the above manner and connected to the rotor shaft 32. In addition, it should be noted that this application document only improves the shortcomings of the existing inductive encoder test device, such as low test efficiency, narrow application range and poor test effect, and does not involve other aspects; the working principle of this inductive encoder test device is introduced as follows:

[0036] When the present invention is used, when the on-site personnel need to install the encoder circuit boards of different sizes, they clamp the encoder circuit board to be tested inside the four limit posts 433 of the stator adjustment device 4, loosen the locking screw 42, push the adjustment handle 44, and the adjustment ring plate 41 can rotate. The four sliding rollers 431 slide in the grooves 411 on the adjustment ring plate 41 at the same time, and drive each limit connecting rod 43 to rotate around the stator shaft 432. The four limit posts 433 will move inward or outward at the same time until they are adjusted to a suitable size, so that the encoder circuit board to be tested can be fixed. After fixing, the size adjustment is completed by tightening the locking screw 42.

[0037] Through the testing device designed as above, the present novel can quickly test inductive encoder circuit boards of different sizes by means of the stator adjusting device 4 and the rotor adjusting device 2. The adjusting device is convenient to adjust, thus greatly improving the testing efficiency.

[0038] The above embodiments are only used to illustrate the technical method of the present utility model and not to limit it. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present utility model.

Claims

1. An inductive encoder testing device, comprising a body (1), a driving device (3), and a rotor adjusting device (2) arranged in the body (1) and connected to the driving device (3); It is characterized in that Also includes: A stator adjustment device (4) is arranged on the surface of the machine body (1), and the stator adjustment device (4) comprises an adjustment ring plate (41) rotatably arranged on the surface of the machine body (1), a locking screw (42) arranged on the adjustment ring plate (41), and a plurality of limit connecting rods (43) arranged on the adjustment ring plate (41); Wherein, the bottom surface of each of the limit connecting rods (43) is respectively provided with a sliding roller (431), a stator shaft (432) and a limit column (433).

2. An inductive encoder testing device according to claim 1, characterized in that: The driving device (3) comprises a driving motor (31) vertically arranged in the machine body (1) and a rotor shaft (32) arranged at the main shaft end of the driving motor (31), and the rotor adjustment device (2) is arranged on the rotor shaft (32).

3. The inductive encoder testing device according to claim 1, characterized in that: The surface of the adjusting ring plate (41) is obliquely provided with a plurality of grooves (411), and the sliding roller (431) of each of the position-limiting connecting rods (43) is located in each groove (411).

4. The inductive encoder testing device according to claim 3, characterized in that: Each of the grooves (411) is distributed in a circular shape with respect to the center of the body (1).

5. The inductive encoder testing device according to claim 1, characterized in that: An adjusting handle (44) is provided on the adjusting ring plate (41).

6. The inductive encoder testing device according to claim 1, characterized in that: The machine body (1) is provided with a threaded hole (11) for mounting a locking screw (42).

7. The inductive encoder testing device according to claim 1, characterized in that: The adjusting ring plate (41) is provided with a fixing groove (412) for installing the locking screw (42).

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