Motor zero calibration device and method

Abstract

The invention relates to the technical field of linear motors, in particular to a motor zero calibration device and method.The motor zero calibration device comprises a main beam, a plurality of stators are arranged in the middle of the main beam, a plurality of sliding plates in sliding connection with the main beam are arranged at the upper ends of the stators, and sealing cover plates in sliding connection with the end wall of the main beam are arranged at the upper ends of the sliding plates; a rotor corresponding to the stator is arranged at the lower end of the sliding plate, a plurality of zero points are evenly arranged on the side wall of one end of the main beam, zero point induction pieces in one-to-one correspondence with the zero points are correspondingly installed on the sliding plate, and heat dissipation structures matched with the sealing cover plates are arranged at the two ends of the main beam respectively. The heat dissipation structure comprises a plurality of air outlet pipes corresponding to the mover, and the problems that in the prior art, a photoelectric switch and a light blocking piece return to zero, the width of a module is widened, the module is inconvenient to use on equipment with limited space, and the mover cannot work normally if heat of the mover is not dissipated in time are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motors, and in particular to a motor zero point calibration device and method. Background Art

[0002] A linear motor is a transmission device that converts electrical energy directly into linear motion mechanical energy without any intermediate conversion mechanism. It can be regarded as a rotating motor cut radially and unfolded into a plane.

[0003] In the linear motor system, the main function of the multi-motor zero point sensor is to provide a definite mechanical zero point to ensure that each mover can return to a known position when starting. The zero point sensor is installed at a specific position of the main beam to detect the initial position of the mover. When the zero point sensing piece on the mover moves to the detection range of the zero point sensor, the zero point sensor will send a signal indicating that the mover has reached the zero point position.

[0004] In the field of linear motors, the prior art is to use a photoelectric switch plus a light-blocking sheet to confirm the zero point of the multi-motor return to zero. Since the photoelectric switches cannot be installed on the same straight line of motion, the positions have to be staggered, which widens the width of the module, which is inconvenient on equipment with limited space.

[0005] The mover will generate heat when working, and since a cover plate is usually provided at the upper end of the main beam, the cover plate is usually provided at the upper end of the mover, which affects the heat dissipation of the mover. If the heat is not dissipated in time, the mover will not be able to work normally. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a motor zero point calibration device and method, which effectively solves the problem that the photoelectric switch plus a light blocking sheet in the prior art returns to zero, widens the width of the module, which is inconvenient on equipment with limited space, and the heat of the mover cannot be dissipated in time, causing the mover to fail to work normally.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A motor zero point calibration device comprises a main beam, wherein a plurality of stators are arranged in the middle of the main beam, a plurality of slide plates slidably connected to the main beam are arranged at the upper end of the stator, a cover plate slidably connected to the end wall of the main beam is arranged at the upper end of the slide plate, a mover corresponding to the stator is arranged at the lower end of the slide plate, a plurality of zero points are evenly arranged on the side wall of one end of the main beam, zero point induction sheets corresponding to the zero points are respectively installed on the slide plates, and heat dissipation structures matched with the cover plate are respectively arranged at both ends of the main beam, and the heat dissipation structure comprises a plurality of air outlet ducts corresponding to the movers.

[0009] Preferably, the heat dissipation structure also includes a balancing airbag arranged at the end of the main beam, and the balancing airbag includes a telescopic leather bag, the upper and lower ends of the telescopic leather bag are respectively arranged as an upper hard shell and a lower hard shell, the lower end of the lower hard shell is provided with a lower fixed plate fixedly connected to the main beam, the upper end of the upper hard shell is provided with an upper fixed plate, the two ends of the balancing airbag are respectively provided with a column rod fixedly connected to the main beam, the two ends of the upper fixed plate are respectively provided with a sliding shaft block slidably connected to the column rod, the inner wall of the covering plate is slidably arranged on the column rod, one end of the telescopic leather bag is provided with an air intake valve, an air intake pipe connected to the air intake valve is provided on the main beam, a blower connected to the air intake pipe is also provided on the main beam, a plurality of air outlet valves that balance the air intake and exhaust with the air intake valve are provided on the other end of the telescopic leather bag, the air outlet pipe is installed on the air outlet valve, and adhesive stickers corresponding to the upper fixed plate and the lower fixed plate are respectively provided on the upper hard shell and the lower hard shell.

[0010] Preferably, two ends of the stator are respectively provided with slide rails fixedly connected to the main beam, and two ends of the slide plate are respectively provided with slide blocks slidably connected to the slide rails.

[0011] Preferably, a plurality of air holes corresponding to the movers are evenly arranged on the slide plate, and anti-collision rubber blocks are respectively arranged on both sides of one end of the slide plate.

[0012] Preferably, both ends of the main beam are respectively fixedly connected with end blocks, and the end blocks are provided with a pair of end limit columns corresponding to the slide plate.

[0013] A calibration method for a motor zero point calibration device comprises the following steps:

[0014] Step 1: Control the blower to work. The blower enters the balancing airbag through the air inlet valve. Since the balancing airbags are respectively arranged at both ends of the main beam, when the balancing airbags are inflated, the cover plate is slid upward to prop up. At the same time, the gas in the balancing airbag is discharged from the air outlet pipe on the air outlet valve to keep the balancing airbag in a continuously propped up state.

[0015] Step 2: When the cover plate is propped up, a gap is generated between the slide plate and the cover plate, and the cooling air discharged from the air outlet pipe circulates between the slide plate and the cover plate. The heat generated during the operation of the mover is dissipated through the air holes on the slide plate and then discharged in time under the action of the cooling air. When the mover is not working, the balance airbag does not rush into the gas to cancel the support of the cover plate. The cover plate is pressed on the slide plate, which can effectively prevent dust particles in the air from entering the mover and affecting the service life of the mover.

[0016] Step three: Under the action of the stator, the mover drives the slide plate to slide along the slide rail on the main beam. The slide plates are respectively provided with the zero point sensing pieces, and each zero point on the main beam corresponds to only one zero point sensing piece on the slide plate, so that the unpaired zero point sensing pieces will not be sensed when passing through the unpaired zero point, thereby performing zero point calibration to determine whether the mover at the lower end of the slide plate returns to zero.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a balancing airbag. After the balancing airbag is inflated, the upper hard shell at the upper end of the balancing airbag drives the upper fixed plate to slide upward along the column rod under the limit of the sliding shaft block, and simultaneously slides the two ends of the covering plate upward to prop up. At the same time, the gas in the balancing airbag is discharged through the air outlet pipe on the air outlet valve, and the balancing airbag is kept in a continuously propped up state. When the covering plate is propped up, a gap is generated between the slide plate and the covering plate, and the cooling air discharged by the air outlet pipe circulates between the slide plate and the covering plate. The heat generated during the working process of the mover is dissipated through the air holes on the slide plate and is discharged in time under the action of the cooling air. When the mover is not working, the gas not rushed into the balancing airbag cancels the support of the covering plate, and the covering plate is pressed on the slide plate, which can effectively prevent dust particles in the air from entering the mover and affecting the service life of the mover.

[0019] 2. Under the action of the stator, the mover drives the slide plate to slide along the slide rail on the main beam. The slide plates are respectively provided with the zero-point sensing pieces, and each zero point on the main beam corresponds to only one zero-point sensing piece on the slide plate that matches the mover, so that unpaired zero-point sensing pieces will not be sensed when passing through unpaired zero points, and then the zero-point calibration is performed to determine whether the mover at the lower end of the slide plate returns to zero. Since the zero points are evenly arranged, there is no need to widen the side of the main beam, which effectively avoids the problem of inconvenience in use on equipment with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axonometric diagram I of the present invention;

[0021] Figure 2 It is the axonometric drawing II of the present invention;

[0022] Figure 3 is a first schematic diagram of a skateboard of the present invention;

[0023] Figure 4 is a second schematic diagram of a skateboard of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the main beam of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the cover plate of the present invention;

[0026] Figure 7 For the present invention Figure 6 A partial enlarged view of area A;

[0027] Figure 8 It is a schematic diagram of the structure of the upper fixing plate and the lower fixing plate of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the balancing airbag of the present invention;

[0029] In the figure: 1, main beam, 2, cover plate, 3, zero point sensor, 4, slide plate, 5, zero point, 6, end block, 7, end limit column, 8, slide rail, 9, stator, 10, air vent, 11, anti-collision rubber block, 12, mover, 13, slider, 14, column rod, 15, upper fixed plate, 16, telescopic leather bag, 17, air inlet valve, 18, lower fixed plate, 19, slide shaft block, 20, air outlet valve, 21, air outlet pipe, 22, adhesive label, 23, upper hard shell, 24, lower hard shell, 26, air inlet pipe, 27, blower. DETAILED DESCRIPTION

[0030] like Figure 1-9 As shown, a motor zero point calibration device includes a main beam 1, a plurality of stators 9 are arranged in the middle of the main beam 1, a plurality of slide plates 4 slidably connected to the main beam 1 are arranged at the upper end of the stator 9, a cover plate 2 slidably connected to the end wall of the main beam 1 is arranged at the upper end of the slide plate 4, a mover 12 corresponding to the stator 9 is arranged at the lower end of the slide plate 4, a plurality of zero points 5 are evenly arranged on the side wall of one end of the main beam 1, zero point sensor sheets 3 corresponding to the zero points 5 are respectively installed on the slide plate 4, and heat dissipation structures matched with the cover plate 2 are respectively arranged at both ends of the main beam 1, and the heat dissipation structure includes a plurality of air outlet pipes 21 corresponding to the movers 12.

[0031] When the present invention is in use, the heat dissipation structure is controlled to work, and the cover plate 2 is driven to move upward. There is a gap between the cover plate 2 and the slide plate 4. The cooling air blown out by the air outlet pipe 21 flows between the cover plate 2 and the slide plate 4 to dissipate the heat generated by the mover 12 when it is working. Under the action of the stator 9, the mover 12 drives the slide plate 4 to slide on the main beam 1 along the slide rail 8. The slide plates 4 are respectively provided with the zero-point sensing sheets 3 corresponding to each other, and each zero point 5 on the main beam 1 only corresponds to a single zero-point sensing sheet 3 on the slide plate 4 that is compatible with the mover 12, so that the unpaired zero-point sensing sheets 3 will not be sensed when passing through the unpaired zero point 5, and then the zero point 5 is calibrated to determine whether the mover 12 at the lower end of the slide plate 4 returns to zero. Since the zero point 5 is evenly arranged, there is no need to widen the side of the main beam 1, which effectively avoids the problem of inconvenience in use on equipment with limited space.

[0032] The heat dissipation structure also includes a balancing airbag arranged at the end of the main beam 1, and the balancing airbag includes a telescopic leather bag 16, and the upper and lower ends of the telescopic leather bag 16 are respectively arranged as an upper hard shell 23 and a lower hard shell 24, and the lower end of the lower hard shell 24 is provided with a lower fixed plate 18 fixedly connected to the main beam 1, and the upper end of the upper hard shell 23 is provided with an upper fixed plate 15, and the two ends of the balancing airbag are respectively provided with a column 14 fixedly connected to the main beam 1, and the two ends of the upper fixed plate 15 are respectively provided with a sliding shaft block 19 slidably connected to the column 14, and the cover The inner wall of the plate 2 is slidably arranged on the column 14, an air intake valve 17 is arranged at one end of the telescopic leather bag 16, an air intake pipe 26 connected to the air intake valve 17 is arranged on the main beam 1, and a blower 27 connected to the air intake pipe 26 is also arranged on the main beam 1, and a plurality of air outlet valves 20 for balancing the intake and exhaust with the air intake valve 17 are arranged at the other end of the telescopic leather bag 16, and the air outlet pipe 21 is installed on the air outlet valve 20, and adhesive stickers 22 corresponding to the upper fixed plate 15 and the lower fixed plate 18 are respectively arranged on the upper hard shell 23 and the lower hard shell 24.

[0033] like Figure 7-9 As shown, the blower 27 works, and the wind blown by the blower 27 enters the balancing airbag through the air inlet pipe 26 and the air inlet valve 17. Since the balancing airbags are respectively arranged at both ends of the main beam 1, the lower end of the balancing airbag fixes the lower hard shell 24 at the lower end of the balancing airbag through the lower fixing plate 18. Therefore, when the balancing airbag is inflated, the upper hard shell 23 at the upper end of the balancing airbag drives the upper fixing plate 15 to slide upward along the column 14 under the limit of the sliding shaft block 19, and the two ends of the cover plate 2 are simultaneously slid upward and propped up. At the same time, the gas in the balancing airbag is discharged from the air outlet pipe 21 on the air outlet valve 20. Exhaust, keep the balancing airbag in a continuously propped up state, when the covering plate 2 is propped up, a gap is generated between the skateboard 4 and the covering plate 2, and the cooling air discharged from the air outlet pipe 21 circulates between the skateboard 4 and the covering plate 2. The heat generated during the operation of the mover 12 is dissipated through the air holes 10 on the skateboard 4 and is discharged in time under the action of the cooling wind. When the mover 12 is not working, no gas is rushed into the balancing airbag to cancel the support of the covering plate 2. The covering plate 2 is pressed on the skateboard 4, which can effectively prevent dust particles in the air from entering the mover 12 and affecting the service life of the mover 12.

[0034] The two ends of the stator 9 are respectively provided with slide rails 8 fixedly connected to the main beam 1 , and the two ends of the slide plate 4 are respectively provided with sliders 13 slidably connected to the slide rails 8 .

[0035] like Figure 2 and 4 As shown, the mover 12 can drive the slider 13 at the lower end of the slide plate 4 to slide on the slide rail 8 under the action of the stator 9. The drive of the stator 9 and the mover 12 belongs to the existing technology and will not be repeated.

[0036] The slide plate 4 is evenly provided with a plurality of air holes 10 corresponding to the movers 12 , and anti-collision rubber blocks 11 are respectively provided on both sides of one end of the slide plate 4 .

[0037] like Figure 3 As shown, the heat generated by the mover 12 is dissipated through the air holes 10 on the slide plate 4, and the anti-collision rubber blocks 11 are respectively arranged on the same side of the slide plate 4 to prevent the slide plate 4 from colliding during the sliding process.

[0038] The two ends of the main beam 1 are respectively fixedly connected with end blocks 6 , and the end blocks 6 are provided with a pair of end limit columns 7 corresponding to the slide plate 4 .

[0039] like Figure 2 As shown, the end blocks 6 play a role in installing and fixing the end limit columns 7. When the slide plate 4 moves to the ends of both sides of the main beam 1, the end limit columns 7 can be used to limit the sliding of the slide plate 4.

[0040] The working process of the present invention is as follows: the blower 27 is controlled to work, and the air blown by the blower 27 enters the balancing airbag through the air inlet pipe 26 and the air inlet valve 17. Since the balancing airbags are respectively arranged at the two ends of the main beam 1, the lower end of the balancing airbag is fixed to the lower hard shell 24 at the lower end of the balancing airbag by the lower fixing plate 18. Therefore, when the balancing airbag is inflated, the upper hard shell 23 at the upper end of the balancing airbag drives the upper fixing plate 15 to slide upward along the column 14 under the limit of the sliding shaft block 19, and the two ends of the cover plate 2 are simultaneously slid upward and propped up. At the same time, the gas in the balancing airbag is discharged by the outlet valve 20. The air is discharged through the air duct 21 to keep the balancing airbag in a continuously propped-up state. When the covering plate 2 is propped up, a gap is generated between the skateboard 4 and the covering plate 2, and the cooling air discharged from the air outlet 21 circulates between the skateboard 4 and the covering plate 2. The heat generated during the operation of the mover 12 is dissipated through the air holes 10 on the skateboard 4 and is discharged in time under the action of the cooling air. When the mover 12 is not working, no gas is rushed into the balancing airbag to cancel the support of the covering plate 2. The covering plate 2 is pressed on the skateboard 4, which can effectively prevent dust particles in the air from entering the mover 12 and affecting the service life of the mover 12.

[0041] Under the action of the stator 9, the mover 12 drives the slide plate 4 to slide on the main beam 1 along the slide rail 8. The slide plates 4 are respectively provided with the zero-point sensing plates 3, and each zero point 5 on the main beam 1 corresponds to only one zero-point sensing plate 3 on the slide plate 4, so that the unpaired zero-point sensing plates 3 will not be sensed when passing through the unpaired zero point 5, and then the zero point 5 calibration is performed to determine whether the mover 12 at the lower end of the slide plate 4 returns to zero.

[0042] A calibration method for a motor zero point calibration device comprises the following steps:

[0043] Step 1: Control the blower 27 to work. The blower 27 enters the balancing airbag through the air inlet valve 17. Since the balancing airbags are respectively arranged at both ends of the main beam 1, when the balancing airbags are inflated, the cover plate 2 is slid upward to prop up. At the same time, the gas in the balancing airbag is discharged from the air outlet pipe 21 on the air outlet valve 20, so that the balancing airbag is kept in a continuously propped up state.

[0044] Step 2: When the cover plate 2 is propped up, a gap is generated between the slide plate 4 and the cover plate 2, and the cooling air discharged from the air outlet pipe 21 circulates between the slide plate 4 and the cover plate 2. The heat generated during the operation of the mover 12 is dissipated through the air holes 10 on the slide plate 4 and then discharged in time under the action of the cooling air. When the mover 12 is not working, the balance airbag does not rush into the gas to cancel the support of the cover plate 2, and the cover plate 2 is pressed on the slide plate 4, which can effectively prevent dust particles in the air from entering the mover 12 and affecting the service life of the mover 12.

[0045] Step three: Under the action of the stator 9, the mover 12 drives the slide plate 4 to slide on the main beam 1 along the slide rail 8. The slide plates 4 are respectively provided with the zero-point sensing plates 3, and each zero point 5 on the main beam 1 corresponds to only one zero-point sensing plate 3 on the slide plate 4, so that the unpaired zero-point sensing plates 3 will not be sensed when passing through the unpaired zero point 5, and then the zero point 5 calibration is performed to determine whether the mover 12 at the lower end of the slide plate 4 returns to zero.

[0046] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A motor zero point calibration device, comprising a main beam (1), characterized in that: A plurality of stators (9) are arranged in the middle of the main beam (1); a plurality of slide plates (4) slidably connected to the main beam (1) are arranged at the upper end of the stator (9); a cover plate (2) slidably connected to the end wall of the main beam (1) is arranged at the upper end of the slide plate (4); a mover (12) corresponding to the stator (9) is arranged at the lower end of the slide plate (4); a plurality of zero points (5) are evenly arranged on the side wall of one end of the main beam (1); zero point induction sheets (3) corresponding to the zero points (5) are respectively mounted on the slide plate (4); and heat dissipation structures matched with the cover plate (2) are respectively arranged at both ends of the main beam (1); the heat dissipation structures include a plurality of air outlet pipes (21) corresponding to the movers (12).

2. A motor zero point calibration device according to claim 1, characterized in that: The heat dissipation structure also includes a balancing airbag arranged at the end of the main beam (1), the balancing airbag including a telescopic leather bag (16), the upper and lower ends of the telescopic leather bag (16) are respectively arranged as an upper hard shell (23) and a lower hard shell (24), the lower end of the lower hard shell (24) is provided with a lower fixing plate (18) fixedly connected to the main beam (1), the upper end of the upper hard shell (23) is provided with an upper fixing plate (15), and the two ends of the balancing airbag are respectively provided with column rods (14) fixedly connected to the main beam (1).

3. A motor zero point calibration device according to claim 2, characterized in that: Both ends of the upper fixing plate (15) are respectively provided with sliding shaft blocks (19) slidably connected to the column rod (14); the inner wall of the cover plate (2) is slidably arranged on the column rod (14); one end of the telescopic bag (16) is provided with an air intake valve (17); the main beam (1) is provided with an air intake pipe (26) connected to the air intake valve (17); and the main beam (1) is also provided with a blower (27) connected to the air intake pipe (26).

4. A motor zero point calibration device according to claim 3, characterized in that: The other end of the telescopic bag (16) is provided with a plurality of air outlet valves (20) for balancing the air inlet and outlet with the air inlet valve (17), and the air outlet pipe (21) is installed on the air outlet valve (20). The upper hard shell (23) and the lower hard shell (24) are respectively provided with adhesive stickers (22) corresponding to the upper fixing plate (15) and the lower fixing plate (18).

5. The motor zero point calibration device according to claim 1, characterized in that: Both ends of the stator (9) are provided with slide rails (8) fixedly connected to the main beam (1), and both ends of the slide plate (4) are provided with slide blocks (13) slidably connected to the slide rails (8).

6. A motor zero point calibration device according to claim 5, characterized in that: The slide plate (4) is evenly provided with a plurality of air holes (10) corresponding to the mover (12), and anti-collision rubber blocks (11) are respectively provided on both sides of one end of the slide plate (4).

7. The motor zero point calibration device according to claim 1, characterized in that: The two ends of the main beam (1) are respectively fixedly connected with end blocks (6), and the end blocks (6) are provided with a pair of end limit columns (7) corresponding to the slide plate (4).

8. A calibration method for a motor zero point calibration device according to any one of claims 1 to 5, characterized in that: The steps include: Step 1: Control the blower (27) to work, and the blower (27) enters the balancing airbag through the air inlet valve (17). Since the balancing airbags are respectively arranged at both ends of the main beam (1), when the balancing airbags are inflated, the cover plate (2) is slid upward to prop up, and at the same time, the gas in the balancing airbag is discharged from the air outlet pipe (21) on the air outlet valve (20), so that the balancing airbag is kept in a continuously propped up state; Step 2: When the cover plate (2) is propped up, a gap is generated between the slide plate (4) and the cover plate (2), and the cooling air discharged from the air outlet pipe (21) circulates between the slide plate (4) and the cover plate (2). The heat generated during the operation of the mover (12) is dissipated through the air holes (10) on the slide plate (4) and is discharged in time under the action of the cooling air. When the mover (12) is not working, the balance airbag does not rush into the gas to cancel the support for the cover plate (2), and the cover plate (2) is pressed on the slide plate (4), which can effectively prevent dust particles in the air from entering the mover (12) and affecting the service life of the mover (12); Step 3: Under the action of the stator (9), the mover (12) drives the slide plate (4) to slide along the slide rail (8) on the main beam (1), and the slide plates (4) are respectively provided with the zero point sensing pieces (3) in a one-to-one correspondence, and each zero point (5) on the main beam (1) corresponds to only one zero point sensing piece (3) on the slide plate (4), so that the unpaired zero point sensing piece (3) will not be sensed when passing through the unpaired zero point (5), and then the zero point (5) calibration is performed to determine whether the mover (12) at the lower end of the slide plate (4) returns to zero.

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