Testing device for coded disc

Abstract

The utility model discloses a testing device for a code disc, and relates to the technical field of code disc testing. The testing device for the code disc comprises a testing machine table and a code disc body, a clamping device is fixedly installed on the inner side of the testing machine table, the code disc body is in lap joint with the top end of the clamping device, testing equipment is fixedly installed at the top end of the testing machine table, and the testing equipment is located above the code disc body. According to the testing device for the code disc, the clamping device is arranged, a transmission structure is utilized to enable a rotating disc to drive a supporting rod at the top end of an elliptical moving sleeve to horizontally slide through Pentao, so that multiple sets of clamping claws can adaptively clamp a code disc body on a placement table, and the whole process adopts mechanical operation; the code disc can be fixed on the testing machine table in a mechanical mode, the situation that the code disc is prone to deviation in the concentricity testing process is avoided, the testing precision of the code disc is guaranteed, and the finished product quality of the code disc is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of code disk testing, in particular to a code disk testing device. Background Art

[0002] The encoder has the advantages of strong resolution, high measurement accuracy and reliable operation. It is the most commonly used displacement sensor for measuring the angular position of the shaft. The encoder is divided into two types: absolute encoder and incremental encoder. The former can directly give a digital code corresponding to the angular position, while the latter uses a computing system to add or subtract the pulse increment generated by the rotating encoder against a certain reference number.

[0003] The principle of the concentricity detector 404 in this application has been described in detail in an encoder code disc concentricity detection device in CN202321802366.1, and will not be repeated here.

[0004] After searching, it is proposed in a concentricity detection device for encoder code disc with patent publication number CN202321802366.1 that "the beneficial effect of the utility model is that when the concentricity detector is disassembled for maintenance, the button is pressed downward to drive the top plate to move downward, so that the card block moves downward. After the limit of the card block is lost, the concentricity detector can be removed from the fixed frame. When the concentricity detector is installed, the insertion rod is inserted into the slot, and the insertion rod is pressed against the inclined surface at the top of the card block to move the card block downward, drive the top plate to move downward, and compress the first spring. When the card slot moves to the top of the card block, under the action of the first spring, the card block enters the card slot, so that the insertion rod and the fixed frame are firmly fixed".

[0005] However, the above scheme still has certain shortcomings in actual use. In this scheme, the code disc is not fixed during the concentricity test, which makes the code disc easily offset during the concentricity test, thereby affecting the test accuracy of the code disc to a certain extent, and thus greatly reducing the quality of the finished product of the code disc. Utility Model Content

[0006] The utility model provides a testing device for a code disk to solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test device for a code disc, comprising a test platform and a code disc body, a clamping device is fixedly installed on the inner side of the test platform, the code disc body is overlapped with the top of the clamping device, a test device is fixedly installed on the top of the test platform, and the test device is located above the code disc body;

[0008] The clamping device includes a driving box, the top of which is movably connected to a placing table, a through opening is opened inside the placing table, the inner wall of the driving box is rotatably connected to two turntables through a transmission structure, an eccentric rod is fixedly installed on the top of the turntable, an elliptical movable sleeve is movably sleeved on the outer side of the eccentric rod, a support rod is fixedly installed on the top of the elliptical movable sleeve, a clamping claw is fixedly installed on the top of the support rod, and the clamping claw extends to the top of the placing table through the through opening.

[0009] Furthermore, a control panel is fixedly installed on the outer side of the test machine, and the control panel is respectively connected to the clamping device and the test equipment by wires.

[0010] Furthermore, a sliding rod is fixedly mounted on the side end of the elliptical movable sleeve, and the other end of the sliding rod extends to the interior of the driving box and is slidably connected to the inner wall of the driving box.

[0011] Furthermore, the bending part of the clamping claw overlaps with the side end of the code disc body, and the bending part of the clamping claw is provided with a wear-resistant pad, which is a soft silicone pad.

[0012] Furthermore, the testing equipment includes a mounting frame, which is fixedly mounted on the top of the testing machine, a linear motor is provided on the inner wall of the mounting frame, an output shaft of the linear motor is threadedly connected with a threaded ring, and a concentricity detector is fixedly mounted on the outer side of the threaded ring.

[0013] Compared with the prior art, the utility model provides a test device for a code disk, which has the following beneficial effects:

[0014] The test device for the code disc is provided with a clamping device, and a transmission structure is used to cause the turntable to slide horizontally by driving the support rod at the top of the elliptical movable sleeve through the Pershing's, so that multiple groups of clamping claws can adaptively clamp the code disc body on the placement table, and the entire process is mechanized, so that the code disc can be fixed on the test machine in a mechanized manner, avoiding the situation that the code disc is easily offset during the concentricity test, so that the test accuracy of the code disc is guaranteed, and the quality of the finished product of the code disc is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the clamping device of the utility model;

[0018] Figure 4 It is a schematic diagram of the testing equipment of the present utility model.

[0019] In the figure: 1. test machine; 2. encoder body; 3. clamping device; 301. drive box; 302. placement table; 303. through-hole; 304. transmission structure; 305. turntable; 306. eccentric rod; 307. elliptical moving sleeve; 308. support rod; 309. clamping claw; 4. test equipment; 401. mounting frame; 402. linear motor; 403. threaded ring; 404. concentricity detector; 5. control panel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model discloses a testing device for a code disc, including a testing machine platform 1 and a code disc body 2. A clamping device 3 is fixedly installed on the inner side of the testing machine platform 1. The code disc body 2 is overlapped with the top of the clamping device 3. A testing device 4 is fixedly installed on the top of the testing machine platform 1. The testing device 4 is located above the code disc body 2.

[0022] A control panel 5 is fixedly mounted on the outer side of the test platform 1 , and the control panel 5 is respectively connected to the clamping device 3 and the test equipment 4 by electric wires.

[0023] The clamping device 3 includes a driving box 301, the top of which is movably connected to a placing table 302, a through opening 303 is opened inside the placing table 302, the inner wall of the driving box 301 is rotatably connected to two turntables 305 through a transmission structure 304, an eccentric rod 306 is fixedly installed on the top of the turntable 305, an elliptical movable sleeve 307 is movably sleeved on the outer side of the eccentric rod 306, a support rod 308 is fixedly installed on the top of the elliptical movable sleeve 307, a clamping claw 309 is fixedly installed on the top of the support rod 308, and the clamping claw 309 extends through the through opening 303 to the top of the placing table 302.

[0024] By setting up the clamping device 3 and utilizing the transmission structure 304, the turntable 305 can be driven by the Pershing's mechanism to drive the support rod 308 at the top of the elliptical movable sleeve 307 to slide horizontally, so that the multiple groups of clamping claws 309 can adaptively clamp the code disc body 2 on the placement table 302, and the entire process is mechanized, so that the code disc can be fixed on the test machine 1 in a mechanized manner, avoiding the situation where the code disc is easily offset during the concentricity test, so that the test accuracy of the code disc is guaranteed, resulting in significantly improved quality of the finished product of the code disc.

[0025] The testing device 4 includes a mounting frame 401, which is fixedly mounted on the top of the testing machine 1. A linear motor 402 is disposed on the inner wall of the mounting frame 401. A threaded ring 403 is threadedly connected to the output shaft of the linear motor 402. A concentricity detector 404 is fixedly mounted on the outer side of the threaded ring 403.

[0026] Specifically, a sliding rod is fixedly installed on the side end of the elliptical moving sleeve 307 , and the other end of the sliding rod extends to the inside of the driving box 301 and is slidably connected to the inner wall of the driving box 301 .

[0027] In this embodiment, the slide bar is used to slide along the inner wall of the driving box 301 along with the elliptical moving sleeve 307, thereby improving the movement stability of the elliptical moving sleeve 307.

[0028] Specifically, the bending part of the clamping claw 309 overlaps with the side end of the code disc body 2, and the bending part of the clamping claw 309 is provided with a wear-resistant pad, which is a soft silicone pad.

[0029] In this embodiment, the wear-resistant pad on the inner side of the clamping claw 309 can avoid direct contact with the code disc body 2, thereby improving the safety of the code disc body 2 during testing.

[0030] When in use, the code disc body 2 to be detected is first placed on the placement table 302, and then the transmission structure 304 is started through the control panel 5, so that the transmission structure 304 drives the two turntables 305 to rotate, and the rotation of the turntables 305 drives the eccentric rod 306 to perform circular motion. Since the eccentric rod 306 is located inside the elliptical moving sleeve 307 and is slidably connected to the inner wall of the elliptical moving sleeve 307, the relative position between the eccentric rod 306 and the elliptical moving sleeve 307 can change;

[0031] The eccentric rod 306 can drive the elliptical moving sleeve 307 to slide horizontally above the rotating disk 305, so that the elliptical moving sleeve 307 drives the clamping claws 309 to slide inside the through hole 303 through the support rod 308, so that the four clamping claws 309 can adaptively clamp the code disc body 2, so that the code disc body 2 is fixed on the top of the placement table 302 at this time;

[0032] Then, the testing device 4 is started, so that the linear motor 402 inside the mounting frame 401 can drive the concentricity detector 404 to move up and down through the threaded ring 403, so that the concentricity detector 404 gradually descends to the top of the code disc body 2, and then the code disc body 2 is tested through the concentricity detector 404.

[0033] To summarize, the code disc test device, by setting up a clamping device 3, can use the transmission structure 304 to prompt the turntable 305 to slide horizontally through the support rod 308 at the top of the elliptical movable sleeve 307 driven by the Pershing's mechanism, so that multiple groups of clamping claws 309 can adaptively clamp the code disc body 2 on the placement table 302, and the entire process is mechanized, so that the code disc can be fixed on the test machine 1 in a mechanized manner, avoiding the situation where the code disc is easily offset during the concentricity test, so that the test accuracy of the code disc is guaranteed, and the quality of the finished code disc is significantly improved.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A code disk test device, comprising a test platform (1) and a code disk body (2), characterized in that: A clamping device (3) is fixedly installed on the inner side of the test machine (1), the code disc body (2) is overlapped with the top of the clamping device (3), and a test device (4) is fixedly installed on the top of the test machine (1), and the test device (4) is located above the code disc body (2); The clamping device (3) comprises a driving box (301), the top of which is movably connected to a placing table (302), a through opening (303) is provided inside the placing table (302), the inner wall of the driving box (301) is rotatably connected to two rotating disks (305) via a transmission structure (304), an eccentric rod (306) is fixedly mounted on the top of the rotating disk (305), an elliptical movable sleeve (307) is movably sleeved on the outer side of the eccentric rod (306), a supporting rod (308) is fixedly mounted on the top of the elliptical movable sleeve (307), a clamping claw (309) is fixedly mounted on the top of the supporting rod (308), and the clamping claw (309) extends through the through opening (303) to the top of the placing table (302).

2. A code disk testing device according to claim 1, characterized in that: A control panel (5) is fixedly mounted on the outer side of the test machine (1), and the control panel (5) is respectively connected to the clamping device (3) and the test equipment (4) by electric wires.

3. A code disk testing device according to claim 1, characterized in that: A sliding rod is fixedly mounted on the side end of the elliptical moving sleeve (307), and the other end of the sliding rod extends into the interior of the driving box (301) and is slidably connected to the inner wall of the driving box (301).

4. A code disk test device according to claim 1, characterized in that: The bending part of the clamping claw (309) overlaps with the side end of the code disc body (2), and the bending part of the clamping claw (309) is provided with a wear-resistant pad, which is a soft silicone pad.

5. A code disk testing device according to claim 1, characterized in that: The testing device (4) comprises a mounting frame (401), the mounting frame (401) being fixedly mounted on the top of the testing machine (1), a linear motor (402) being arranged on the inner wall of the mounting frame (401), an output shaft of the linear motor (402) being threadedly connected to a threaded ring (403), and a concentricity detector (404) being fixedly mounted on the outer side of the threaded ring (403).

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