Code disc surface jump detection device of encoder

Abstract

The invention discloses an encoder code disc surface jump detection device, which relates to the technical field of disc surface jump detection, and comprises an operation table, a motor is fixedly mounted on the left side of the top surface of the operation table, a chuck is fixed on the right side of a rotating shaft of the motor, a photoreceptor is fixedly mounted on the left side of the top surface of the operation table, and the photoreceptor is located below the chuck. A laser transmitter is fixedly installed on the right side of the top face of the operation table, a pressing disc assembly is arranged on the right side of the top face of the operation table and comprises a frame, the frame is fixedly installed on the right side of the top face of the operation table and located on the right side of the laser transmitter, and an electric telescopic rod is fixedly installed in the middle of the top face of the frame. According to the device, the rubber block abuts against the grating disc to rotate, so that the problem that the grating disc rotates and deviates on the chuck to cause inaccurate grating detection on the code disc surface is solved.

Description

Technical Field

[0001] The invention relates to the technical field of disk surface jump detection, in particular to an encoder code disk surface jump detection device. Background Art

[0002] The working principle of the photoelectric encoder is based on the grating effect. When the light source shines on the grating disk, the light passing through the grating is captured by the photoelectric detection device, generating a series of pulse signals. The number and frequency of these signals reflect the speed and direction information of the encoder. The main function of the encoder code disk surface jump detection device is to detect whether the encoder code disk has code jumping phenomenon during rotation, which is very important to ensure the accuracy and reliability of the encoder.

[0003] The patent with patent number CN207688821U discloses an encoder code disk surface jump detection device, which includes an encoder, a rotating motor, a code disk to be measured, a displacement sensor and a translation slide. The encoder is installed on the front output shaft of the rotating motor, and the code disk to be measured is installed on the rear output shaft of the rotating motor. The displacement sensor is connected to the translation slide. The encoder controls the rotating motor to rotate at a uniform speed, the rotating motor drives the code disk to be measured to rotate, and the translation slide drives the displacement sensor to move. The displacement sensor measures the displacement offset of the code disk to be measured in the vertical direction. Compared with the prior art, this patent has the advantages of high precision and strong scalability.

[0004] However, the current encoder code disk surface jump detection device has the following problems: when the encoder code disk surface jump detection device is in use, due to the centrifugal force when the grating disk rotates during the detection of the grating disk, the grating disk is prone to offset on the chuck, resulting in inaccurate grating detection of the code disk surface. Therefore, we propose an encoder code disk surface jump detection device. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an encoder code disk surface jump detection device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an encoder code disk surface jump detection device, comprising an operating table, a motor is fixedly installed on the left side of the top surface of the operating table, a chuck is fixed on the right side of the rotating shaft of the motor, a photoreceptor is fixedly installed on the left side of the top surface of the operating table, the photoreceptor is located below the chuck, a laser transmitter is fixedly installed on the right side of the top surface of the operating table, and a pressure plate assembly is arranged on the right side of the top surface of the operating table; The pressure plate assembly includes a frame, the frame is fixedly installed on the right side of the top surface of the operating table, the frame is located on the right side of the laser transmitter, an electric telescopic rod is fixedly installed in the middle of the top surface of the frame, a concave plate is fixed on the left end of the electric telescopic rod, a concave hole is opened in the middle of the left side of the concave plate, a contact plate is rotatably installed on the inner wall of the concave hole of the concave plate, the contact plate is located on the right side of the chuck, three rubber blocks are fixedly installed on the left side of the contact plate, and during the rotation detection process of the grating plate, the rubber blocks rotate against the grating plate to prevent the grating plate from rotating and deviating on the chuck, and a re-disc assembly is arranged on the outer wall of the concave plate; The disk-recovering assembly comprises a ring plate, which is fixed on the outer wall of the concave disk, a vertical plate is fixed in the middle of the top surface of the ring plate, a short rod is passed through and fixed on the left top of the vertical plate, a sponge block is fixed on the left end of the short rod, the sponge block is located above the contact disk, the sponge block contacts the disk surface of the grating disk, and the sponge block wipes the disk surface of the grating disk; An anti-shake device is arranged in the middle of the front and back surfaces of the ring plate, and a shading device is arranged on the right side of the outer wall of the anti-shake device.

[0007] According to the above technical solution, the right side of the chuck holds a grating disk, a photosensitive plate is provided on the top right side of the photoreceptor, the transmitting head on the left side of the laser transmitter is aligned with the photosensitive plate of the photoreceptor, the middle of the right side of the grating disk on the chuck is on the movement trajectory of the three rubber blocks, and the right side edge of the grating disk on the chuck is on the movement trajectory of the sponge block.

[0008] According to the above technical solution, the anti-shake device includes two L-shaped rods, two U-shaped plates, two rollers and two concave plates. The two L-shaped rods are fixed in the middle of the front and back surfaces of the ring plate, the two U-shaped plates are respectively fixed on the bottom surfaces of the two L-shaped rods, the two rollers are respectively rotatably installed on the inner walls of the U-shaped plates, the two concave plates are fixed on the top surface of the operating table, and the two concave plates are respectively located on the front and back sides of the frame. The roller rolls to the left in the concave plates, and under the action of friction, the jitter of the concave disk when it moves to the left is reduced.

[0009] According to the above technical solution, the anti-shake device also includes two straight rods, two magnetic disks and two iron plates. The two straight rods respectively penetrate and are fixed at the left bottom of the two L-shaped rods, the two magnetic disks are respectively fixed at the left ends of the two straight rods, and the two iron plates are respectively fixed at the left ends of the two concave strips. Under the action of magnetic force, the magnetic disks are adsorbed on the iron plates, so that the rubber blocks on the plates will not continue to squeeze the grating disks.

[0010] According to the above technical solution, the inner bottom ends of the two concave strips are in rotational contact with the outer walls of the two rollers, and the right tops of the two iron plates are respectively on the motion trajectories of the two magnetic disks.

[0011] According to the above technical scheme, the shading device includes two straight ring blocks, two rectangular plates, a U-shaped shield plate, two sliding columns and two L-shaped groove plates. The two straight ring blocks are respectively fixed on the right side of the outer wall of the two straight rods, the two straight ring blocks are respectively located on the right side of the two L-shaped rods, the two rectangular plates are respectively fixed on the opposite side of the two straight ring blocks, the U-shaped shield plate is fixed on the side where the two rectangular plates are close to each other, the two sliding columns are fixed on the bottom of the front and back sides of the U-shaped shield plate, the two L-shaped groove plates are fixed on the top surface of the operating table, the two L-shaped groove plates are respectively located on the side opposite to the two concave strip plates, and the two L-shaped groove plates are both provided with notches on the opposite bottom. The inner walls of the notches of the two L-shaped groove plates are in sliding contact with the outer walls of the two sliding columns, and the U-shaped shield plate covers the top of the laser emitter to prevent the laser emitted by the laser emitter from being disturbed by strong light.

[0012] According to the above technical scheme, the shading device also includes two circular frames, two slides, two rubber pads, two arc-shaped spring sheets and two L-shaped plates. The two circular frames are respectively fixed on the side of the two sliding columns away from each other, the two slides are slidably installed on the inner walls of the two circular frames, the two rubber pads are respectively fixed on the left side of the two slides, the two arc-shaped spring sheets are respectively fixed on the right side of the side of the two slides away from each other, the ends of the two arc-shaped spring sheets away from the slides are fixedly connected to the side of the two circular frames away from each other, and the two L-shaped plates are respectively fixed on the left side of the side of the two L-shaped slot plates away from each other. Under the elastic force of the arc-shaped spring sheets, the rubber pads are pressed against the L-shaped plates, so that the U-shaped shielding plate will not contact the disk surface of the grating disk.

[0013] According to the above technical solution, the U-shaped shield is located on the left side of the frame, and the two L-shaped plates are respectively located on the movement tracks of the two rubber pads.

[0014] The present invention provides an encoder code disk surface jump detection device, which has the following beneficial effects: (1) The present invention cooperates with a sponge block through a frame, an electric telescopic rod, a concave plate, a resisting plate, a rubber block, a ring plate, a vertical plate and a short rod. The resisting plate drives the rubber block to move leftward. During the process of the rubber block moving leftward, the rubber block contacts the grating disk. Under the action of friction, the grating disk drives the rubber block to rotate. The rubber block drives the resisting plate to rotate. The resisting plate rotates in the concave plate. During the rotation detection of the grating disk, the rubber block rotates against the grating disk, so that the grating disk will not rotate and deviate on the chuck, thereby preventing the grating disk from rotating and deviating on the chuck, causing inaccurate grating detection on the code disk surface. In addition, the short rod drives the sponge block to move leftward, and the sponge block contacts the disk surface of the grating disk. During the rotation of the grating disk, the sponge block wipes the disk surface of the grating disk, thereby preventing the disk surface of the grating disk from being blocked by foreign objects, causing poor detection effect.

[0015] (2) The present invention sets an anti-shake device so that the L-shaped rod, U-shaped plate, roller, concave strip plate, straight rod and magnetic disk cooperate with the iron plate. The U-shaped plate drives the roller to move to the left, and the roller rolls to the left in the concave strip plate. Under the action of friction, the shaking of the concave disk when it moves to the left is reduced, and the concave disk is prevented from shaking violently and causing poor pressing effect. In addition, under the action of magnetic force, the magnetic disk is adsorbed on the iron plate, so that the rubber block on the contact plate will not continue to squeeze the grating disk, and the grating disk is prevented from being excessively squeezed by the rubber block and damaged.

[0016] (3) The present invention arranges the shading device so that the straight ring block, the rectangular plate, the U-shaped shielding plate, the sliding column, the L-shaped groove plate, the circular frame, the sliding plate, the rubber pad and the arc-shaped spring piece cooperate with the L-shaped plate. The U-shaped plate drives the roller to move to the left, and the roller rolls to the left in the concave strip plate. Under the action of friction, the shaking of the concave disk when it moves to the left is reduced, and the concave disk is prevented from shaking violently and causing a poor pressing effect. In addition, under the action of magnetic force, the magnetic disk is adsorbed on the iron plate, so that the rubber block on the contact plate will not continue to squeeze the grating disk, and the grating disk is prevented from being excessively squeezed by the rubber block and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 It is a cross-sectional schematic diagram of the right side of the present invention as a whole; Figure 3 It is a cross-sectional schematic diagram of the framework of the present invention; Figure 4 For the present invention Figure 3 A local enlarged schematic diagram of the middle A; Figure 5 is a schematic diagram of an anti-shake device of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of point B in the middle; Figure 7 is a schematic diagram of a shading device of the present invention; Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0018] In the figure: 1. operating table; 2. motor; 3. chuck; 4. photoreceptor; 5. laser transmitter; 31. pressure plate assembly; 311. frame; 312. electric telescopic rod; 313. concave plate; 314. abutment plate; 315. rubber block; 32. re-disk assembly; 321. ring plate; 322. vertical plate; 323. short rod; 324. sponge block; 6. anti-shake device; 61. L-shaped rod; 62. U-shaped plate; 63. roller; 64. concave strip plate; 65. straight rod; 66. magnetic disk; 67. iron plate; 7. shading device; 71. straight ring block; 72. rectangular plate; 73. U-shaped shielding plate; 74. sliding column; 75. L-shaped slot plate; 76. circular frame; 77. sliding plate; 78. rubber pad; 79. arc spring piece; 710. L-shaped plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1-Figure 8 An embodiment of the present invention is: an encoder code disk surface jump detection device, comprising an operating table 1, a motor 2 is fixedly installed on the left side of the top surface of the operating table 1, a chuck 3 is fixed on the right side of the rotating shaft of the motor 2, a photoreceptor 4 is fixedly installed on the left side of the top surface of the operating table 1, the photoreceptor 4 is located below the chuck 3, a laser transmitter 5 is fixedly installed on the right side of the top surface of the operating table 1, a grating disk is clamped on the right side of the chuck 3, a photosensitive plate is arranged on the top right side of the photoreceptor 4, and the transmitter head on the left side of the laser transmitter 5 is aligned with the photosensitive plate of the photoreceptor 4; A pressure plate assembly 31 is arranged on the right side of the top surface of the operating table 1. The pressure plate assembly 31 includes a frame 311. The frame 311 is fixedly installed on the right side of the top surface of the operating table 1. The frame 311 is located on the right side of the laser transmitter 5. An electric telescopic rod 312 is fixedly installed in the middle of the top surface of the frame 311. A concave plate 313 is fixed on the left end of the electric telescopic rod 312. A concave hole is opened in the middle of the left side of the concave plate 313. A contact plate 314 is rotatably installed on the inner wall of the concave hole of the concave plate 313. The contact plate 314 is located on the right side of the chuck 3. Three rubber blocks 315 are fixedly installed on the left side of the contact plate 314. The grating plate on the chuck 3 is in the middle of the right side at three On the motion track of the rubber block 315, the contact plate 314 drives the rubber block 315 to move to the left. When the rubber block 315 moves to the left, the rubber block 315 contacts the grating disk. Under the action of friction, the grating disk drives the rubber block 315 to rotate. The rubber block 315 drives the contact plate 314 to rotate. The contact plate 314 rotates in the concave disk 313. During the rotation detection of the grating disk, the rubber block 315 rotates against the grating disk, so that the grating disk will not rotate and deviate on the chuck 3, so as to avoid the grating detection of the code disk surface being inaccurate due to the rotation and deviation of the grating disk on the chuck 3 when the code disk surface jump detection device detects the grating disk. The outer wall of the concave disk 313 is provided with a re-disk assembly 32, and the re-disk assembly 32 includes a ring plate 321, which is fixed on the outer wall of the concave disk 313, and a vertical plate 322 is fixed in the middle of the top surface of the ring plate 321. A short rod 323 passes through and is fixed to the top of the left side of the vertical plate 322, and a sponge block 324 is fixed to the left end of the short rod 323. The sponge block 324 is located above the abutment disk 314, and the right edge of the grating disk on the chuck 3 is on the movement trajectory of the sponge block 324. The short rod 323 drives the sponge block 324 to move to the left, and the sponge block 324 contacts the disk surface of the grating disk. During the rotation of the grating disk, the sponge block 324 wipes the disk surface of the grating disk to avoid the code disk surface jump detection device detecting the grating disk. When the grating disk is blocked by foreign objects, the detection effect is poor.

[0021] When in use, the operating table 1 supports the motor 2, and the staff installs the grating disk on the chuck 3 on the shaft of the motor 2. The staff starts the motor 2, and the shaft on the motor 2 starts to rotate forward. The shaft of the motor 2 drives the chuck 3 to rotate forward, and the chuck 3 drives the grating disk to rotate forward. At the same time, the staff starts the laser transmitter 5 on the operating table 1, and the transmitter head of the laser transmitter 5 emits a laser to the rotating grating disk. During the rotation of the grating disk, the laser passing through the grating disk is sensed by the photosensitive plate of the photoreceptor 4, and the photoreceptor 4 can thereby detect the rotation speed and direction information of the grating disk. During the detection of the grating disk, when the grating disk rotates, under the action of centrifugal force, the grating disk is easily offset on the chuck 3. When the staff starts the motor 2, the operating table 1 supports the frame 311, and the staff starts the electric telescopic rod 31 on the frame 311 2. The telescopic end of the electric telescopic rod 312 starts to move to the left, and the telescopic end of the electric telescopic rod 312 drives the concave plate 313 to move to the left, and the concave plate 313 drives the contact plate 314 to move to the left, and the contact plate 314 drives the rubber block 315 to move to the left. In the process of the rubber block 315 moving to the left, the rubber block 315 contacts the grating disk. Under the action of friction, the grating disk drives the rubber block 315 to rotate, and the rubber block 315 drives the contact plate 314 to rotate. The contact plate 314 rotates in the concave plate 313, so that in the process of rotation detection of the grating disk, the rubber block 315 rotates against the grating disk, so that the grating disk will not rotate and deviate on the chuck 3, thereby preventing the grating disk from rotating and deviating on the chuck 3 when the equipment is detecting, thereby avoiding the problem of inaccurate grating detection on the code disk surface caused by the rotation and deviation of the grating disk on the chuck 3 when the code disk surface jump detection device detects the grating disk.

[0022] While the telescopic end of the electric telescopic rod 312 drives the concave disk 313 to move left, the concave disk 313 drives the ring plate 321 to move left, the ring plate 321 drives the vertical plate 322 to move left, the vertical plate 322 drives the short rod 323 to move left, the short rod 323 drives the sponge block 324 to move left, the sponge block 324 contacts the surface of the grating disk, and during the rotation of the grating disk, the sponge block 324 wipes the surface of the grating disk to prevent the grating disk surface from being blocked by foreign objects when the equipment is in use, thereby avoiding the problem of poor detection effect caused by the grating disk surface being blocked by foreign objects when the code disk surface jump detection device detects the grating disk.

[0023] See also Figure 1-Figure 8 On the basis of the above embodiment, another embodiment of the present invention further includes an anti-shake device 6 and a shading device 7, wherein the anti-shake device 6 is arranged in the middle of the front and back surfaces of the ring plate 321, and the anti-shake device 6 includes two L-shaped rods 61, two U-shaped plates 62, two rollers 63 and two concave strips 64, the two L-shaped rods 61 are fixed in the middle of the front and back surfaces of the ring plate 321, the two U-shaped plates 62 are respectively fixed on the bottom surfaces of the two L-shaped rods 61, and the two rollers 63 are respectively rotatably mounted on the inner walls of the U-shaped plates 62. On the top, two concave plates 64 are fixed on the top surface of the operating table 1, and the two concave plates 64 are respectively located on the front and back of the frame 311. The inner bottom ends of the two concave plates 64 are in rotational contact with the outer walls of the two rollers 63. The U-shaped plate 62 drives the roller 63 to move to the left, and the roller 63 rolls to the left in the concave plates 64. Under the action of friction, the jitter of the concave disk 313 when it moves to the left is reduced, so as to avoid the concave disk 313 from vigorous jitter when the code disk surface jump detection device detects the grating disk, resulting in poor pressure plate effect.

[0024] The anti-shake device 6 also includes two straight rods 65, two magnetic disks 66 and two iron plates 67. The two straight rods 65 respectively penetrate and are fixed on the left bottom of the two L-shaped rods 61, the two magnetic disks 66 are respectively fixed on the left ends of the two straight rods 65, and the two iron plates 67 are respectively fixed on the left ends of the two concave strip plates 64. The top of the right side of the two iron plates 67 is respectively on the movement trajectory of the two magnetic disks 66. Under the action of magnetic force, the magnetic disks 66 are adsorbed on the iron plates 67, so that the rubber block 315 on the abutment plate 314 will not continue to squeeze the grating disk, thereby preventing the grating disk from being excessively squeezed by the rubber block 315 when the code disk surface jump detection device detects the grating disk, causing damage to the grating disk.

[0025] A shading device 7 is provided on the right side of the outer wall of the anti-shake device 6. The shading device 7 includes two straight ring blocks 71, two rectangular plates 72, a U-shaped shielding plate 73, two sliding columns 74 and two L-shaped groove plates 75. The two straight ring blocks 71 are respectively fixed to the right side of the outer wall of the two straight rods 65, the two straight ring blocks 71 are respectively located on the right side of the two L-shaped rods 61, the two rectangular plates 72 are respectively fixed to the opposite sides of the two straight ring blocks 71, the U-shaped shielding plate 73 is fixed to the side where the two rectangular plates 72 are close to each other, the two sliding columns 74 are fixed to the bottom of the front and back sides of the U-shaped shielding plate 73, and the two L-shaped groove plates 75 are fixed. On the top surface of the operating table 1, two L-shaped groove plates 75 are respectively located on the side directly opposite the two concave strip plates 64. Notches are opened on the bottoms directly opposite the two L-shaped groove plates 75. The inner walls of the notches of the two L-shaped groove plates 75 are in sliding contact with the outer walls of the two sliding columns 74. The U-shaped shield plate 73 is located on the left side of the frame 311. During the rotation of the grating disk, the U-shaped shield plate 73 covers the top of the laser emitter 5, so that the laser emitted by the laser emitter 5 will not be disturbed by strong light, thereby avoiding the laser emitted by the laser emitter 5 being disturbed by strong light when the code disk surface jump detection device detects the grating disk, resulting in poor detection effect.

[0026] The shading device 7 also includes two circular frames 76, two slide plates 77, two rubber pads 78, two arc-shaped spring pieces 79 and two L-shaped plates 710. The two circular frames 76 are respectively fixed to the sides of the two sliding columns 74 away from each other. The two slide plates 77 are slidably mounted on the inner walls of the two circular frames 76. The two rubber pads 78 are respectively fixed to the left sides of the two slide plates 77. The two arc-shaped spring pieces 79 are respectively fixed to the right sides of the sides of the two slide plates 77 away from each other. One end of the two arc-shaped spring pieces 79 away from the slide plates 77 is fixedly connected to the sides of the two circular frames 76 away from each other. The two L-shaped plates 710 are respectively fixed On the left side of the side where the two L-shaped slot plates 75 are away from each other, the two L-shaped plates 710 are respectively on the movement tracks of the two rubber pads 78, and the rubber pads 78 are in contact with the L-shaped plates 710. Under the action of the extrusion force, the slide plate 77 moves rightward in the circular frame 76, and the arc-shaped spring piece 79 on the slide plate 77 is deformed. Under the elastic force of the arc-shaped spring piece 79, the rubber pad 78 rests on the L-shaped plate 710, so that the U-shaped shield plate 73 will not contact the surface of the grating disk, thereby preventing the U-shaped shield plate 73 from hitting the surface of the grating disk when the code disk surface jump detection device detects the grating disk, causing the surface of the grating disk to be easily damaged.

[0027] While the concave disk 313 drives the ring plate 321 to move left, the ring plate 321 drives the L-shaped rod 61 to move left, the L-shaped rod 61 drives the U-shaped plate 62 to move left, the U-shaped plate 62 drives the roller 63 to move left, and the roller 63 rolls left in the concave plate 64. Under the action of friction, the jitter of the concave disk 313 when it moves to the left is reduced, and the concave disk 313 is prevented from shaking violently when the equipment is in use, thereby avoiding the problem of poor pressure plate effect caused by the concave disk 313 shaking violently when the code disk surface jump detection device detects the grating disk.

[0028] When the ring plate 321 drives the L-shaped rod 61 to move to the left, the L-shaped rod 61 drives the straight rod 65 to move to the left, and the straight rod 65 drives the magnetic disk 66 to move to the left. When the magnetic disk 66 moves to the left, the magnetic disk 66 contacts the iron plate 67. Under the action of the magnetic force, the magnetic disk 66 is adsorbed on the iron plate 67, so that the rubber block 315 on the abutment plate 314 will not continue to squeeze the grating disk, thereby preventing the grating disk from being excessively squeezed by the rubber block 315 when the equipment is in use, thereby avoiding the problem of the grating disk being damaged by the rubber block 315 when the code disk surface jump detection device detects the grating disk.

[0029] While the L-shaped rod 61 drives the straight rod 65 to move left, the straight rod 65 drives the annular straight block 71 to move left, the annular straight block 71 drives the rectangular plate 72 to move left, the rectangular plate 72 drives the U-shaped shield 73 to move left, the U-shaped shield 73 drives the sliding column 74 to move left, and the sliding column 74 slides to the left in the groove of the L-shaped groove plate 75, so that during the rotation of the grating disk, the U-shaped shield 73 covers the top of the laser emitter 5, so that the laser emitted by the laser emitter 5 will not be disturbed by strong light, preventing the laser emitted by the laser emitter 5 from being disturbed by strong light when the equipment is in use, thereby avoiding the problem of poor detection effect caused by the laser emitted by the laser emitter 5 being disturbed by strong light when the code disk surface jump detection device detects the grating disk.

[0030] When the U-shaped shield plate 73 drives the slide post 74 to move to the left, the slide post 74 drives the circular frame 76 to move to the left, the circular frame 76 drives the slide plate 77 to move to the left, the slide plate 77 drives the rubber pad 78 to move to the left, and the rubber pad 78 contacts the L-shaped plate 710. Under the action of the extrusion force, the slide plate 77 moves to the right in the circular frame 76, and the arc-shaped spring piece 79 on the slide plate 77 is deformed. Under the elastic force of the arc-shaped spring piece 79, the rubber pad 78 is pressed against the L-shaped plate 710, so that the U-shaped shield plate 73 will not contact the disk surface of the grating disk, preventing the U-shaped shield plate 73 from hitting the disk surface of the grating disk when the equipment is in use, thereby avoiding the problem that the U-shaped shield plate 73 hits the disk surface of the grating disk when the code disk surface jump detection device detects the grating disk, causing the disk surface of the grating disk to be easily damaged.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An encoder code disk surface jump detection device, comprising an operating table (1), a motor (2) is fixedly mounted on the left side of the top surface of the operating table (1), and a chuck (3) is fixed on the right side of the rotating shaft of the motor (2), characterized in that: A photoreceptor (4) is fixedly mounted on the left side of the top surface of the operating table (1), and the photoreceptor (4) is located below the chuck (3). A laser transmitter (5) is fixedly mounted on the right side of the top surface of the operating table (1), and a pressure plate assembly (31) is arranged on the right side of the top surface of the operating table (1). The pressure plate assembly (31) comprises a frame (311), the frame (311) is fixedly mounted on the right side of the top surface of the operating table (1), the frame (311) is located on the right side of the laser transmitter (5), an electric telescopic rod (312) is fixedly mounted in the middle of the top surface of the frame (311), a concave plate (313) is fixed to the left end of the electric telescopic rod (312), a concave hole is provided in the middle of the left side of the concave plate (313), a bearing plate (314) is rotatably mounted on the inner wall of the concave hole of the concave plate (313), the bearing plate (314) is located on the right side of the clamping plate (3), three rubber blocks (315) are fixedly mounted on the left side of the bearing plate (314), and a counterplate assembly (32) is provided on the outer wall of the concave plate (313); The resetting disk assembly (32) comprises an annular plate (321), the annular plate (321) being fixed on the outer wall of the concave disk (313), a vertical plate (322) being fixed in the middle of the top surface of the annular plate (321), a short rod (323) passing through and fixed on the top of the left side of the vertical plate (322), a sponge block (324) being fixed on the left end of the short rod (323), and the sponge block (324) being located above the abutment disk (314); An anti-shake device (6) is provided in the middle of the front and back surfaces of the ring plate (321), and a light shielding device (7) is provided on the right side of the outer wall of the anti-shake device (6).

2. The encoder code disk surface jump detection device according to claim 1, characterized in that: The right side of the chuck (3) holds a grating disk, the top right side of the photoreceptor (4) is provided with a photosensitive plate, the emission head on the left side of the laser emitter (5) is aligned with the photosensitive plate of the photoreceptor (4), the middle right side of the grating disk on the chuck (3) is on the movement trajectory of the three rubber blocks (315), and the right side edge of the grating disk on the chuck (3) is on the movement trajectory of the sponge block (324).

3. The encoder code disk surface jump detection device according to claim 2, characterized in that: The anti-shake device (6) comprises two L-shaped rods (61), two U-shaped plates (62), two rollers (63) and two concave strip plates (64); the two L-shaped rods (61) are fixed in the middle of the front and back surfaces of the ring plate (321); the two U-shaped plates (62) are respectively fixed to the bottom surfaces of the two L-shaped rods (61); the two rollers (63) are respectively rotatably mounted on the inner walls of the U-shaped plates (62); the two concave strip plates (64) are fixed to the top surface of the operating table (1); and the two concave strip plates (64) are respectively located on the front and back surfaces of the frame (311).

4. The encoder code disk surface jump detection device according to claim 3, characterized in that: The anti-shake device (6) further comprises two straight rods (65), two magnetic disks (66) and two iron plates (67), the two straight rods (65) respectively passing through and being fixed to the left bottom of the two L-shaped rods (61), the two magnetic disks (66) respectively being fixed to the left ends of the two straight rods (65), and the two iron plates (67) respectively being fixed to the left ends of the two concave strip plates (64).

5. The encoder code disk surface jump detection device according to claim 4, characterized in that: The inner bottom ends of the two concave strip plates (64) are in rotational contact with the outer walls of the two rollers (63), and the right tops of the two iron plates (67) are respectively located on the movement tracks of the two magnetic disks (66).

6. The encoder code disk surface jump detection device according to claim 5, characterized in that: The shading device (7) comprises two straight ring blocks (71), two rectangular plates (72), a U-shaped shielding plate (73), two sliding columns (74) and two L-shaped groove plates (75). The two straight ring blocks (71) are respectively fixed to the right sides of the outer walls of the two straight rods (65). The two straight ring blocks (71) are respectively located on the right sides of the two L-shaped rods (61). The two rectangular plates (72) are respectively fixed to the opposite sides of the two straight ring blocks (71). The U-shaped shielding plate (73) is fixed to the right sides of the two straight ring blocks (71). The two sliding columns (74) are fixed on the sides of the two rectangular plates (72) close to each other, the two sliding columns (74) are fixed on the bottom of the front and back sides of the U-shaped shielding plate (73), and the two L-shaped groove plates (75) are fixed on the top surface of the operating table (1). The two L-shaped groove plates (75) are respectively located on the sides close to the two concave strip plates (64) directly opposite to each other, and the bottoms of the two L-shaped groove plates (75) directly opposite to each other are both provided with grooves, and the inner walls of the grooves of the two L-shaped groove plates (75) are in sliding contact with the outer walls of the two sliding columns (74).

7. The encoder code disk surface jump detection device according to claim 6, characterized in that: The shading device (7) further comprises two circular frames (76), two slide plates (77), two rubber pads (78), two arc-shaped spring sheets (79) and two L-shaped plates (710). The two circular frames (76) are respectively fixed to the sides of the two sliding columns (74) away from each other. The two slide plates (77) are slidably mounted on the inner walls of the two circular frames (76). The two rubber pads (78) are respectively fixed to the left sides of the two slide plates (77). The two arc-shaped spring sheets (79) are respectively fixed to the right sides of the sides of the two slide plates (77) away from each other. One end of the two arc-shaped spring sheets (79) away from the slide plates (77) is fixedly connected to the sides of the two circular frames (76) away from each other. The two L-shaped plates (710) are respectively fixed to the left sides of the sides of the two L-shaped slot plates (75) away from each other.

8. The encoder code disk surface jump detection device according to claim 7, characterized in that: The U-shaped shielding plate (73) is located on the left side of the frame (311), and the two L-shaped plates (710) are respectively located on the movement tracks of the two rubber pads (78).

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