Magnetic railing ruler reading head testing device

Abstract

The utility model discloses a magnetic railing ruler reading head testing device, which belongs to the technical field of reading head testing, and comprises a base, the upper surface of the base is fixedly connected with a side plate, the side surface of the side plate is fixedly connected with a guide rod, the side surface of the guide rod is slidably connected with a sleeve, the lower surface of the sleeve is fixedly connected with a mounting block, and the mounting block is fixedly connected with the side plate. And the side surface of the mounting block is movably connected with a mounting shaft. The clamping semi-ring is far away from the positioning column by rotating the inclined rod, the reading head is convenient to mount and dismount, and the inclined rod can drive the L-shaped plate to reciprocate back and forth in the rotating process, so that the wiping block can wipe the surface of the reading head, and dust on the surface of the reading head is prevented from affecting the measurement precision of the reading head; and the rotating roller enables the sleeve not to be in direct contact with the base when the sleeve moves on the guide rod, the rotating roller can rotate when the sleeve moves to enable the sleeve to move smoothly, surface abrasion is avoided, the rotating roller can be taken down for replacement, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of reading head testing, and in particular relates to a magnetic scale reading head testing device. Background Art

[0002] The magnetic scale is a sensor that uses electromagnetic properties and magnetic recording principles to measure displacement. It reads the magnetization signal on the magnetic scale through a magnetic head and converts the displacement into an electrical signal output, thereby achieving accurate position measurement.

[0003] The magnetic scale is mainly composed of three parts: magnetic scale, magnetic head and detection circuit. The magnetic scale provides the measurement reference, the magnetic head reads the magnetic signal and converts it into electrical signals, and the detection circuit processes these electrical signals. Large-scale industrial automation equipment manufacturers often need to purchase in batches, and need to quickly test the quality of the reading head after purchase or before installation.

[0004] The existing device for testing the reading head installs the reading head on the surface of the moving block, and drives the reading head to move by sliding the moving block to observe whether the reading head is working normally. However, since there is often dust on the surface of the reading head, which affects the measurement accuracy, and the slider will rub against the base when it moves, the number of measurements is large, the back-and-forth sliding resistance is large, and wear will occur. After searching, it was found that the technical solution provided by the utility model with application number 202223472083.3 also has the above-mentioned problems. Utility Model Content

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a magnetic scale reading head test device, comprising a base, the upper surface of the base is fixedly connected with a side plate, the side surface of the side plate is fixedly connected with a guide rod, the side surface of the guide rod is slidably connected with a sleeve, the lower surface of the sleeve is fixedly connected with a mounting block, the side surface of the mounting block is movably connected with a mounting shaft, and the side surface of the mounting shaft is rotatably connected with a roller;

[0006] The side surface of the sleeve is fixedly connected to a fixing plate, the front surface of the fixing plate is fixedly connected to a positioning column, the front surface of the fixing plate is fixedly connected to a supporting plate, the front surface of the supporting plate is fixedly connected to a fixing rod, the side surface of the fixing rod is provided with a spring, the side surface of the spring is sequentially provided with an inclined rod and a half-tooth, one end of the inclined rod is fixedly connected to a clamping half ring, a connecting shaft is rotatably connected inside the support plate, the side surface of the connecting shaft is fixedly connected to a gear, one end of the connecting shaft is fixedly connected to a reciprocating roller, the rear surface of the fixing plate is fixedly connected to a limiting plate, the internal movably connected to the limiting plate is a connecting rod, one end of the connecting rod is fixedly connected to an L-shaped plate, and the side surface of the L-shaped plate is fixedly connected to a wiping block.

[0007] Through the above technical solution, when the moving sleeve displaces the installed reading head for detection, the moving sleeve will not directly contact the base, and the rotation of the roller installed below can reduce the friction of the contact surface to avoid wear and make the movement smooth. When installing the reading head, the inclined rod is moved to release the limit on the positioning column. At the same time, the L-shaped plate drives the wiping block to move through the half teeth, connecting shafts, gears, reciprocating rollers and connecting rods, so that the reading head will pass through the wiping block when installed on the positioning column. The wiping block wipes off the dust on the reading head to avoid affecting the measurement accuracy.

[0008] The utility model is further configured that both ends of the installation shaft are provided with threads, and the side surface of the installation shaft is threadedly connected with a nut.

[0009] Through the above technical solution, the nuts are used to fix and limit the two ends of the installation shaft.

[0010] The utility model is further configured that a groove is provided on the side surface of the positioning column, and the side surface of the clamping half ring is in contact with the groove.

[0011] Through the above technical solution, the clamping half ring can be clamped into the groove to limit the position of the reading head after installation.

[0012] The utility model is further configured that a reciprocating groove is arranged on the side surface of the reciprocating roller, one end of the connecting rod is movably connected to the reciprocating groove, and a limiting groove is arranged inside the limiting plate.

[0013] Through the above technical solution, when the gear drives the reciprocating roller to rotate, it will drive the connecting rod to move in the reciprocating groove, thereby causing the connecting rod to move back and forth.

[0014] The utility model is further configured that the side surface of the half tooth is meshed with the gear, and the side surface of the inclined rod is provided with a handle.

[0015] The utility model is further configured such that a reading head is movably connected to the side surface of the positioning column, and a lower surface of the reading head is in contact with the supporting plate.

[0016] The utility model is further configured that the upper surface of the base is movably connected with a magnetic scale, and the side surface of the magnetic scale is fixedly connected with a block.

[0017] The utility model is further configured that the upper surface of the block is threadedly connected with a bolt, and the side surface of the bolt is threadedly connected to the base.

[0018] Through the above technical solution, the block and the bolt cooperate to enable the magnetic scale to be removed and replaced.

[0019] The beneficial effects of the utility model are as follows:

[0020] (1) By rotating the inclined rod, the clamping half ring is moved away from the positioning column, which is convenient for installation and removal of the reading head. In addition, the inclined rod can drive the L-shaped plate to reciprocate back and forth during the rotation process, so that the wiping block can wipe the surface of the reading head to prevent dust on the surface of the reading head from affecting the measurement accuracy of the reading head;

[0021] (2) When the sleeve moves on the guide rod through the roller, the sleeve will not directly contact the base. When the sleeve moves, the roller can rotate to make its movement smooth and avoid surface wear. The roller can also be removed and replaced to increase the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a first-view structural diagram of a magnetic scale reading head testing device of the utility model;

[0023] Figure 2 This is a partial structural exploded diagram of a magnetic scale reading head testing device of the utility model;

[0024] Figure 3 It is a partial structural schematic diagram of a magnetic scale reading head testing device of the utility model;

[0025] Figure 4 It is another structural schematic diagram of a magnetic scale reading head testing device of the utility model;

[0026] Figure 5 The utility model is a schematic diagram of a connecting rod of a magnetic scale reading head testing device.

[0027] Figure numerals: 1. base; 2. side plate; 3. guide rod; 4. sleeve; 5. mounting block; 6. mounting shaft; 7. roller; 8. nut; 9. fixing plate; 10. support plate; 11. positioning column; 12. fixing rod; 13. spring; 14. inclined rod; 15. snap-on half ring; 16. half tooth; 17. connecting shaft; 18. gear; 19. reciprocating roller; 20. reciprocating groove; 21. limit plate; 22. connecting rod; 23. L-shaped plate; 24. wiping block; 25. magnetic scale; 26. reading head. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] like Figure 1-Figure 5As shown, a magnetic scale reading head testing device of the present embodiment includes a base 1, the upper surface of the base 1 is fixedly connected to a side plate 2, the side surface of the side plate 2 is fixedly connected to a guide rod 3, the side surface of the guide rod 3 is slidably connected to a sleeve 4, the sleeve 4 moves back and forth on the surface of the guide rod 3, thereby driving the installed reading head 26 to move, and the reading head 26 is tested.

[0030] The lower surface of the sleeve 4 is fixedly connected with a mounting block 5, and the side surface of the mounting block 5 is movably connected with a mounting shaft 6. Both ends of the mounting shaft 6 are provided with threads, and the side surface of the mounting shaft 6 is threadedly connected with a nut 8. The side surface of the mounting shaft 6 is rotatably connected with a roller 7. The roller 7 can rotate when the sleeve 4 is moved, thereby reducing the friction at the contact position, avoiding surface wear and making the movement smoother. When the roller 7 is damaged, the nut 8 can be unscrewed, the mounting shaft 6 can be removed, and the roller 7 can be removed for replacement, thereby increasing the service life of the device.

[0031] The side surface of the sleeve 4 is fixedly connected to a fixing plate 9, the front surface of the fixing plate 9 is fixedly connected to a positioning column 11, the positioning column 11 is used for the installation and positioning of the reading head 26, the side surface of the positioning column 11 is movably connected to the reading head 26, the lower surface of the reading head 26 is in contact with the supporting plate 10, and the front surface of the fixing plate 9 is fixedly connected to the supporting plate 10.

[0032] A fixing rod 12 is fixedly connected to the front surface of the support plate 10, and a spring 13 is arranged on the side surface of the fixing rod 12. The inner ring of the spring 13 is fixedly connected to the fixing rod 12, and the outer ring of the spring 13 is fixedly connected to the inclined rod 14 and the half tooth 16. When the inclined rod 14 is bent, the spring 13 will be tightened, and when the inclined rod 14 is loosened, the spring 13 will reset and drive the inclined rod 14 to reset, thereby resetting the clamping half ring 15 and contacting the groove of the positioning column 11, so as to limit the installed reading head 26. The side surface of the spring 13 is sequentially provided with the inclined rod 14 and the half tooth 16, and one end of the inclined rod 14 is fixedly connected with the clamping half ring 15, and the side surface of the positioning column 11 is provided with a groove, and the side surface of the clamping half ring 15 contacts the groove.

[0033] A connecting shaft 17 is rotatably connected inside the support plate 10, and a gear 18 is fixedly connected to the side surface of the connecting shaft 17. A reciprocating roller 19 is fixedly connected to one end of the connecting shaft 17, and a reciprocating groove 20 is provided on the side surface of the reciprocating roller 19. One end of the connecting rod 22 is movably connected to the reciprocating groove 20. A limiting groove is provided inside the limiting plate 21, and the side surface of the half tooth 16 is meshed with the gear 18.

[0034] When the half tooth 16 rotates with the pulling of the inclined rod 14, it will drive the meshing gear 18 to rotate, and then rotate the connecting shaft 17 and the reciprocating roller 19, so that the connecting rod 22 is displaced in the reciprocating groove 20. The connecting rod 22 produces reciprocating displacement under the action of the reciprocating groove 20 and the limit groove, and then pushes the L-shaped plate 23 and the wiping block 24 to move back and forth. When the inclined rod 14 is pulled up, the wiping block 24 is displaced in the direction of the magnetic scale 25. When the reading head 26 is installed, it will pass through the wiping block 24, and the dust attached to the surface will be wiped off. When the inclined rod 14 is reset, the wiping block 24 is reset, away from the reading head 26 to avoid blocking the reading head 26 and affecting the test.

[0035] A handle is provided on the side surface of the inclined rod 14, and the rear surface of the fixed plate 9 is fixedly connected to the limiting plate 21. The limiting plate 21 is internally movably connected with a connecting rod 22, one end of the connecting rod 22 is fixedly connected to an L-shaped plate 23, and the side surface of the L-shaped plate 23 is fixedly connected to a wiping block 24.

[0036] The upper surface of the base 1 is movably connected with a magnetic scale 25 , the side surface of the magnetic scale 25 is fixedly connected with a block, the upper surface of the block is threadedly connected with a bolt, and the side surface of the bolt is threadedly connected to the base 1 .

[0037] The working principle of the utility model is as follows: when the reading head 26 is detected, the inclined rod 14 is rotated to make the clamping half ring 15 move away from the positioning column 11. At this time, the spring 13 tightens the half tooth 16 to rotate, driving the gear 18 and the connecting shaft 17 to rotate, thereby rotating the reciprocating roller 19, and the connecting rod 22 is displaced in the reciprocating groove 20, pushing the wiping block 24 forward, and when the reading head 26 is installed on the positioning column 11, the reading head 26 is wiped by the wiping block 24. After installation, the inclined rod 14 is released to reset the spring 13, thereby making the clamping half ring 15 stuck in the groove of the positioning column 11, and the wiping block 24 is reset away from the reading head 26.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A magnetic scale reading head testing device, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a side plate (2), the side surface of the side plate (2) is fixedly connected to a guide rod (3), the side surface of the guide rod (3) is slidably connected to a sleeve (4), the lower surface of the sleeve (4) is fixedly connected to a mounting block (5), the side surface of the mounting block (5) is movably connected to a mounting shaft (6), and the side surface of the mounting shaft (6) is rotatably connected to a roller (7); The side surface of the sleeve (4) is fixedly connected to a fixing plate (9), the front surface of the fixing plate (9) is fixedly connected to a positioning column (11), the front surface of the fixing plate (9) is fixedly connected to a supporting plate (10), the front surface of the supporting plate (10) is fixedly connected to a fixing rod (12), the side surface of the fixing rod (12) is provided with a spring (13), the side surface of the spring (13) is provided with an inclined rod (14) and a half tooth (16) in sequence, one end of the inclined rod (14) is fixedly connected to a clamping half ring (16), and the fixing rod (14) is fixedly connected to a fixing plate (10). 5), a connecting shaft (17) is rotatably connected inside the support plate (10), a gear (18) is fixedly connected to the side surface of the connecting shaft (17), one end of the connecting shaft (17) is fixedly connected to a reciprocating roller (19), the rear surface of the fixed plate (9) is fixedly connected to a limit plate (21), the limit plate (21) is movably connected inside a connecting rod (22), one end of the connecting rod (22) is fixedly connected to an L-shaped plate (23), and the side surface of the L-shaped plate (23) is fixedly connected to a wiping block (24).

2. A magnetic scale reading head testing device according to claim 1, characterized in that: Both ends of the installation shaft (6) are provided with threads, and a nut (8) is threadedly connected to the side surface of the installation shaft (6).

3. A magnetic scale reading head testing device according to claim 1, characterized in that: The side surface of the positioning column (11) is provided with a groove, and the side surface of the clamping half ring (15) is in contact with the groove.

4. A magnetic scale reading head testing device according to claim 1, characterized in that: A reciprocating groove (20) is provided on the side surface of the reciprocating roller (19), one end of the connecting rod (22) is movably connected to the reciprocating groove (20), and a limiting groove is provided inside the limiting plate (21).

5. A magnetic scale reading head testing device according to claim 1, characterized in that: The side surface of the half tooth (16) is meshed with the gear (18), and the side surface of the inclined rod (14) is provided with a handle.

6. A magnetic scale reading head testing device according to claim 1, characterized in that: A reading head (26) is movably connected to the side surface of the positioning column (11), and a lower surface of the reading head (26) is in contact with the support plate (10).

7. A magnetic scale reading head testing device according to claim 1, characterized in that: The upper surface of the base (1) is movably connected to a magnetic scale (25), and the side surface of the magnetic scale (25) is fixedly connected to a block.

8. A magnetic scale reading head testing device according to claim 7, characterized in that: The upper surface of the block is threadedly connected with a bolt, and the side surface of the bolt is threadedly connected to the base (1).

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