A rack levelness correction apparatus

Abstract

This invention belongs to the field of machining technology and discloses a rack leveling correction device, including a support assembly and two sets of pressing assemblies. The support assembly includes a transverse slide rail, a fixed frame, and a movable frame. The fixed frame is connected to one end of the transverse slide rail, and the movable frame includes a slide table and a frame body. The slide table is slidably connected to the transverse slide rail, and the frame body is slidably connected to the slide table. The two sets of pressing assemblies are respectively disposed on the fixed frame and the frame body. Each pressing assembly includes a base plate and a telescopic pressure plate. The base plate supports one end of the rack, and the telescopic pressure plate can reciprocate to press against the rack. The slide table can slide along a first direction so that the two sets of pressing assemblies press against both ends of the rack, and the frame body can slide along a second direction so that the two base plates are in the same plane. The rack leveling correction device of this invention can correct the leveling of deformed racks with high accuracy, thereby avoiding affecting transmission accuracy and equipment performance.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a rack leveling correction device. Background Technology

[0002] A rack is a special type of gear with teeth distributed along a strip. Racks are divided into spur racks and helical racks, which are paired with spur gears and helical gears respectively. The tooth profile of a rack is a straight line rather than an involute (it is a plane relative to the tooth surface), equivalent to a cylindrical gear with an infinite pitch circle radius. Rack and pinion drives are a widely used transmission structure in mechanical equipment, offering advantages such as large stroke, high transmission accuracy, and high torque transmission. They are widely used in laser cutting machines, construction hoists, and other mechanical equipment.

[0003] During the use of racks, prolonged operation will cause them to heat up. The heated rack is prone to softening and deformation under external forces. The deformed rack will cause wear on the clamps, affecting the transmission accuracy, and the deformation will become more obvious as the length increases. In addition, the rack will also deform during the cutting process, which will affect the transmission accuracy and equipment performance. Summary of the Invention

[0004] The purpose of this invention is to provide a rack leveling correction device that can correct the leveling of deformed racks with high accuracy, thereby avoiding affecting transmission accuracy and equipment performance.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A rack leveling correction device is provided, comprising:

[0007] A support assembly includes a transverse slide rail, a fixed frame, and a movable frame. The fixed frame is connected to one end of the transverse slide rail, and the movable frame includes a slide table and a frame body. The slide table is slidably connected to the transverse slide rail, and the frame body is slidably connected to the slide table.

[0008] Two sets of pressing assemblies are respectively disposed on the fixed frame and the frame body. Each pressing assembly includes a base plate and a telescopic pressure plate. The base plate is used to support one end of the rack, and the telescopic pressure plate can reciprocate to press against the rack. The slide table can slide along a first direction so that the two sets of pressing assemblies press against both ends of the rack respectively. The frame body can slide along a second direction so that the two base plates are in the same plane.

[0009] In a preferred embodiment of the present invention, the fixing frame is provided with a receiving groove having a first opening, and the rack leveling correction device further includes a torsion assembly, the torsion assembly comprising:

[0010] A rotating tube is rotatably connected to the fixed frame and disposed within the receiving groove; the crimping assembly is fixedly connected to the inner wall of the rotating tube.

[0011] A sector-shaped plate, the central end of which is fixedly connected to the rotating tube, and the distal end of which is provided with meshing teeth;

[0012] A drive gear, which meshes with the meshing teeth;

[0013] The first motor is fixedly connected to the fixed frame, and the first motor is used to drive the drive gear to rotate.

[0014] As a preferred embodiment of the present invention, the rack levelness correction device further includes a lateral drive assembly, the lateral drive assembly comprising:

[0015] A first threaded rod is fixedly connected to the transverse slide rail and extends along the first direction;

[0016] A threaded tube is fitted onto the first threaded rod and engages with the first threaded rod; the threaded tube is fixedly connected to the slide table.

[0017] A worm gear, which is fixedly connected to the threaded tube;

[0018] A worm gear meshes with a worm wheel and drives the worm wheel to rotate so that the threaded tube slides along the first direction.

[0019] As a preferred embodiment of the present invention, the rack leveling device further includes a crank handle, the slide table is provided with a mounting hole, and the end of the worm gear away from the worm wheel passes through the mounting hole to connect to the crank handle.

[0020] As a preferred structure of the present invention, the frame body is provided with a slide rail and a threaded hole, the slide table is disposed in the slide rail, and the rack leveling correction device further includes a longitudinal adjustment component, the longitudinal adjustment component comprising:

[0021] A second threaded rod extends along the second direction and engages with the threaded hole;

[0022] A second motor is mounted on the slide table;

[0023] A transmission gear set, one end of which is connected to the output shaft of the second motor and the other end of which is connected to the second threaded rod, the transmission gear set being able to drive the second threaded rod to rotate, so that the frame slides along the second direction.

[0024] As a preferred embodiment of the present invention, the rack levelness correction device further includes a height inspection component, the height inspection component comprising:

[0025] A laser emitter, wherein the laser emitter is mounted on the base plate of the mounting bracket;

[0026] Two photosensitive sensors are fixedly connected to the base plate of the movable frame. The two photosensitive sensors are spaced apart along the second direction. The photosensitive sensors are capable of receiving the laser emitted by the laser emitter. The photosensitive sensors are communicatively connected to the second motor.

[0027] A partition is disposed between the two photosensitive sensors.

[0028] As a preferred structure of the present invention, the telescopic pressure plate is provided with a plurality of auxiliary teeth, and a first auxiliary pulley is provided at the end of the auxiliary teeth away from the telescopic pressure plate, the first auxiliary pulley being able to abut against the tooth groove of the rack.

[0029] As a preferred embodiment of the present invention, the telescopic pressure plate is provided with a sliding groove, and the rack leveling correction device further includes a gear tooth adjustment assembly, which includes:

[0030] The slide plate, wherein the auxiliary teeth are fixedly connected to the slide plate, and the slide plate is slidably disposed within the slide groove;

[0031] A telescopic airbag, one end of which is fixedly connected to the telescopic pressure plate and the other end of which is fixedly connected to the slide plate, is capable of reciprocating extension and retraction to drive the slide plate to reciprocate along the first direction.

[0032] As a preferred embodiment of the present invention, the slide plate is provided with a sliding cavity, one end of the sliding cavity is connected to the telescopic airbag, and the gear tooth adjustment assembly further includes:

[0033] A piston, wherein the piston is disposed within the sliding cavity to close one end of the sliding cavity;

[0034] A return spring, one end of which is connected to the slide plate and the other end of which is connected to the piston, the return spring always has the tendency to push the piston away from the bottom of the slide cavity;

[0035] A top column, one end of which is connected to the piston and the other end of which extends out of the sliding cavity, and a second auxiliary pulley is provided at the other end of the top column. The distance between the second auxiliary pulley and the base plate is less than the distance between the first auxiliary pulley and the base plate.

[0036] As a preferred embodiment of the present invention, the rack leveling correction device further includes an air circuit system, the air circuit system comprising:

[0037] An overflow pipe is provided inside the telescopic pressure plate. One end of the overflow pipe is connected to the outside air, and the other end is connected to the telescopic airbag. The overflow pipe is used to overflow the air inside the telescopic airbag.

[0038] An air intake tube, one end of which is connected to the outside air and the other end of which is connected to the sliding cavity, is capable of injecting air into the sliding cavity;

[0039] A connecting pipe, the two ends of which are respectively connected to the telescopic airbag and the sliding cavity;

[0040] A curved heat dissipation pipe extends inside the slide plate and connects to the air intake pipe.

[0041] The beneficial effects of this invention are:

[0042] The rack leveling device provided by this invention is equipped with a fixed frame and a horizontally sliding movable frame, thereby enabling flatness correction at any position on the rack. The slide table slides relative to the frame, so that the two base plates are in the same plane, thus ensuring the levelness of the rack after correction. The rack is moved so that the bent position is located on any base plate, and then the telescopic device drives the telescopic pressure plate to press downward, which can flatten the local position of the rack, making the rack more flat and thus ensuring the accuracy of the rack. The structure is simple, easy to use, and can ensure the accuracy of the rack. The telescopic pressure plate and the base plate have a certain working area, ensuring that the rack is not easily damaged during correction, thus avoiding affecting the transmission accuracy and equipment performance. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the rack levelness correction device provided in an embodiment of the present invention. Figure 1 ;

[0044] Figure 2 This is a schematic diagram of the rack levelness correction device provided in an embodiment of the present invention. Figure 2 ;

[0045] Figure 3 This is a structural cross-sectional view of the rack levelness correction device provided in an embodiment of the present invention;

[0046] Figure 4 This is a partial structural schematic diagram of the torsion assembly provided in an embodiment of the present invention;

[0047] Figure 5 yes Figure 3 A magnified view of part A in the diagram;

[0048] Figure 6 yes Figure 3 A magnified view of part B in the diagram.

[0049] In the picture:

[0050] 1. Support assembly; 11. Transverse slide rail; 111. Strip groove; 12. Fixing frame; 121. First opening; 122. Receiving groove; 13. Movable frame; 131. Slide table; 1311. Sliding hole; 132. Frame body; 1321. Slide track; 1322. Threaded hole; 133. Second opening; 14. Support plate; 2. Pressing assembly; 21. Base plate; 211. Blind hole; 22. Telescopic pressure plate; 221. Auxiliary gear; 222. First auxiliary pulley; 223. Slide groove; 3. Torsion assembly; 31. Rotary tube; 32. Sector plate; 321. Meshing gear; 33. Drive gear; 34. First motor; 4. Lateral drive assembly; 41. First threaded rod; 42. Threaded tube; 43. Worm gear; 44. Worm; 45. Handle; 5. Longitudinal adjustment assembly; 51. Second threaded rod; 52. Second motor; 53. Transmission gear set; 6. Height detection assembly; 61. Laser emitter; 62. Photosensitive sensor; 63. Partition; 7. Gear tooth adjustment assembly; 71. Slide plate; 711. Slide cavity; 72. Telescopic airbag; 73. Piston; 74. Return spring; 75. Top column; 76. Second auxiliary pulley; 8. Air circuit system; 81. Overflow pipe; 82. Intake pipe; 83. Connecting pipe; 84. Curved heat dissipation pipe. Detailed Implementation

[0051] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0052] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0055] like Figures 1-6 As shown, this embodiment of the invention provides a rack leveling device, which includes a support assembly 1 and two sets of pressing assemblies 2. The support assembly 1 includes a transverse slide rail 11, a fixed frame 12, a movable frame 13, and a support plate 14. The fixed frame 12 is connected to one end of the transverse slide rail 11, and the support plate 14 is used to support the end of the transverse slide rail 11 away from the fixed frame 12. The movable frame 13 includes a slide table 131 and a frame body 132. The slide table 131 is slidably connected to the transverse slide rail 11, and the frame body 132 is slidably connected to the slide table 131. The two sets of pressing assemblies 2 are respectively disposed on the fixed frame 12 and the frame body 132. The pressing assemblies 2 include a base plate 21 and a telescopic pressure plate 22. The base plate 21 is used to support one end of the rack, and the telescopic pressure plate 22 can reciprocate to press against the rack. The slide table 131 can slide along a first direction so that the two sets of pressing components 2 press the two ends of the rack respectively. The frame 132 can slide along a second direction so that the two base plates 21 are in the same plane. In use, the two ends of the deformed rack are placed on the two base plates 21 respectively. The rack is moved so that the bent position is located on either base plate 21. Then, the telescopic device drives the telescopic pressure plate 22 to press downward. The telescopic pressure plate 22 can flatten the local position of the rack, making the rack more flat and thus ensuring the accuracy of the rack in use. In this embodiment of the invention, the first direction represents the horizontal direction, and the second direction represents the vertical direction.

[0056] The rack leveling device provided in this embodiment of the invention is equipped with a fixed frame 12 and a horizontally sliding movable frame 13, which can satisfy the flatness correction of any position on the rack. The slide table 131 slides vertically relative to the frame 132, so that the two base plates 21 are in the same plane, thereby ensuring the levelness of the rack after correction. The rack is moved so that the bent position is located on either base plate 21, and then the telescopic device drives the telescopic pressure plate 22 to press down. The telescopic pressure plate 22 can flatten the local position of the rack, making the rack more flat, thereby ensuring the accuracy of the rack. The structure is simple, easy to use, and can ensure the accuracy of the rack. The telescopic pressure plate 22 and the base plate 21 have a certain working area, ensuring that the rack is not easily damaged during correction, thereby avoiding affecting the transmission accuracy and equipment performance.

[0057] As a preferred embodiment, the fixed frame 12 is provided with a receiving groove 122 with a first opening 121. The rack leveling device also includes a torsion assembly 3, which includes a rotating tube 31, a sector plate 32, a drive gear 33, and a first motor 34. The rotating tube 31 is rotatably connected to the fixed frame 12 and is disposed within the receiving groove 122. Similarly, the rotating tube 31 also has an opening corresponding to the first opening 121, making it convenient to pick up and put down the rack. Moreover, the movable frame 13 is also provided with a second opening 133 to facilitate the picking up and putting down of the other end of the rack. The pressing assembly 2 is fixedly connected to the inner wall of the rotating tube 31 and is disposed within the rotating tube 31. The center end of the sector plate 32 is fixedly connected to the rotating tube 31, and the distal end of the sector plate 32 is provided with meshing teeth 321; the drive gear 33 meshes with the meshing teeth 321. The first motor 34 is fixedly connected to the fixed frame 12 and is used to drive the drive gear 33 to rotate. When the rack is twisted, resulting in insufficient flatness, one end of the rack is fixed to the base plate 21 of the fixed frame 12, and the other end is fixed to the base plate 21 of the movable frame 13. Then, the first motor 34 is started, which drives the drive gear 33 to rotate. The drive gear 33 drives the sector plate 32 to rotate in a circle. The sector plate 32 drives the rotating tube 31 to rotate. The rotating tube 31 drives one end of the rack inside it to deflect through the pressing assembly 2, which can twist the twisted rack to a horizontal state, thereby completing the levelness correction.

[0058] As a preferred embodiment, the rack leveling device further includes a transverse drive assembly 4, which comprises a first threaded rod 41, a threaded tube 42, a worm gear 43, and a worm 44. The first threaded rod 41 is fixedly connected to the transverse slide rail 11 and extends along a first direction; preferably, the transverse slide rail 11 is provided with a strip groove 111, and the first threaded rod 41 is disposed within the strip groove 111. The threaded tube 42 is fitted onto and meshes with the first threaded rod 41, and is fixedly connected to the slide table 131. The worm gear 43 is fixedly connected to the threaded tube 42. The worm 44 meshes with the worm gear 43 and drives the worm gear 43 to rotate, so that the threaded tube 42 slides along the first direction. When it is necessary to adjust the distance between the fixed frame 12 and the movable frame 13 to accommodate racks of different lengths, the worm gear 44 is rotated. The worm gear 44 then drives the threaded tube 42 to rotate via the worm wheel 43. The threaded tube 42 then drives the slide table 131 to move horizontally on the transverse slide rail 11, thus realizing the horizontal movement of the movable frame 13. This completes the position adjustment of the movable frame 13, allowing the rack leveling correction device to adapt to racks of different lengths, making it more convenient, flexible, and applicable to a wider range of situations. More specifically, the slide table 131 is provided with a sliding hole 1311 through which the transverse slide rail 11 passes, enabling the slide table 131 to move horizontally.

[0059] As a preferred embodiment, the rack and pinion leveling device also includes a crank handle 45. The slide table 131 is provided with a mounting hole, and the end of the worm gear 44 away from the worm wheel 43 passes through the mounting hole to connect to the crank handle 45. By manually cranking the crank handle 45, the worm gear 44 can be rotated, thereby enabling the slide table 131 to move horizontally on the transverse slide rail 11 through the transverse drive assembly 4. This allows for convenient control and easy adjustment.

[0060] As a preferred embodiment, the frame 132 is provided with a slide rail 1321 and a threaded hole 1322. The slide table 131 is disposed within the slide rail 1321. The rack and pinion leveling device also includes a longitudinal adjustment component 5, which includes a second threaded rod 51, a second motor 52, and a transmission gear set 53. The second threaded rod 51 extends along a second direction and engages with the threaded hole 1322. The second motor 52 is disposed on the slide table 131. One end of the transmission gear set 53 is connected to the output shaft of the second motor 52, and the other end is connected to the second threaded rod 51. The transmission gear set 53 can drive the second threaded rod 51 to rotate, so that the frame 132 slides along the second direction. When the fixed frame 12 and the movable frame 13 are not at the same height, the second motor 52 is started. The second motor 52 can drive the second threaded rod 51 to rotate through the two meshing gears of the transmission gear set 53. The second threaded rod 51 can then drive the frame 132 to slide upward. When the second motor 52 reverses, it will cause the frame 132 to slide downward, which makes it easy to adjust the height of the movable frame 13 to ensure that the base plate 21 on the movable frame 13 and the base plate 21 on the fixed frame 12 are in the same horizontal plane, thus ensuring the accuracy of rack and pinion alignment.

[0061] Furthermore, the rack leveling device also includes a height inspection component 6, which comprises a laser emitter 61, two photosensitive sensors 62, and a partition 63. The laser emitter 61 is mounted on the base plate 21 of the fixed frame 12. The two photosensitive sensors 62 are fixedly connected to the base plate 21 of the movable frame 13. Preferably, the base plate 21 of the movable frame 13 has two blind holes 211, and the two photosensitive sensors 62 are spaced apart in the two blind holes 211 along a second direction, forming a partition 63 between the two blind holes 211. The photosensitive sensors 62 can receive the laser emitted by the laser emitter 61 and are communicatively connected to a second motor 52; the partition 63 is located between the two photosensitive sensors 62. When adjusting the level of the frame 132, the laser emitter 61 is activated, and the laser emitter 61 emits a beam of light towards the blind holes 211 and the partition 63. When the height of the frame 132 is too high, the light beam will shine into the blind hole 211 at the upper end of the partition 63. The photosensitive sensor 62 in the upper blind hole 211 will trigger the control module to control the second motor 52, causing the second motor 52 to drive the frame 132 to slide downward. When the light beam shines on the partition 63, the two photosensitive sensors 62 will not receive the light beam, indicating that the height of the movable frame 13 is aligned with the height of the fixed frame 12, and the second motor 52 will not be started. When the light beam shines into the blind hole 211 at the lower end of the partition 63, the second motor 52 will drive the frame 132 to slide upward, thus completing the automatic adjustment of the fixed frame 12. The height adjustment is relatively simple and convenient.

[0062] As a preferred embodiment, the telescopic pressure plate 22 is provided with multiple auxiliary teeth 221. A first auxiliary pulley 222 is located at the end of each auxiliary tooth 221 away from the telescopic pressure plate 22, and the first auxiliary pulley 222 can abut against the tooth groove of the rack. When the rack on the base plate 21 is die-cast on the telescopic pressure plate 22, the first auxiliary pulley 222 at the lower end of the telescopic pressure plate 22 can precisely engage with the tooth groove of the rack, making the force on the rack more even during leveling and preventing excessive force from damaging the rack. Specifically, both sides of the auxiliary teeth 221 are provided with rounded chamfers to prevent accidental contact and scratching of the rack.

[0063] Specifically, the telescopic pressure plate 22 is provided with a sliding groove 223, and the rack leveling device also includes a gear tooth adjustment assembly 7, which includes a sliding plate 71 and a telescopic airbag 72. An auxiliary gear 221 is fixedly connected to the sliding plate 71, which is slidably disposed within the sliding groove 223. One end of the telescopic airbag 72 is fixedly connected to the telescopic pressure plate 22, and the other end is fixedly connected to the sliding plate 71. The telescopic airbag 72 can reciprocate to drive the sliding plate 71 to reciprocate along a first direction. When the telescopic pressure plate 22 presses downwards, if the first auxiliary pulley 222 is not aligned with the tooth groove of the rack, the telescopic airbag 72 can inflate or deflate, generating reciprocating extension and contraction, thereby driving the sliding plate 71 to reciprocate along the first direction, adjusting the relative position between the first auxiliary pulley 222 and the rack, so that the first auxiliary pulley 222 is aligned with the tooth groove of the rack.

[0064] Specifically, the slide plate 71 has a sliding cavity 711, one end of which is connected to the telescopic airbag 72. The gear tooth adjustment assembly 7 also includes a piston 73, a return spring 74, and a top column 75. The piston 73 is located inside the sliding cavity 711 to close one end of the cavity. One end of the return spring 74 is connected to the slide plate 71, and the other end is connected to the piston 73. The return spring 74 always tends to push the piston 73 away from the bottom of the sliding cavity 711. One end of the top column 75 is connected to the piston 73, and the other end extends out of the sliding cavity 711. The other end of the top column 75 is provided with a second auxiliary pulley 76. The distance between the second auxiliary pulley 76 and the base plate 21 is less than the distance between the first auxiliary pulley 222 and the base plate 21. The top column 75 cooperates with the telescopic airbag 72 to drive the first auxiliary pulley 222 to slide horizontally. The first auxiliary pulley 222 can then automatically move to align with the tooth groove of the rack, thereby completing the automatic alignment of the first auxiliary pulley 222, making rack correction more convenient and safer.

[0065] Furthermore, the rack leveling device also includes an air system 8, which comprises an overflow pipe 81, an intake pipe 82, a connecting pipe 83, and a curved heat dissipation pipe 84. The overflow pipe 81 is located within the telescopic pressure plate 22, with one end connected to external air and the other end connected to the telescopic air bladder 72, allowing air to overflow from the air bladder 72. The intake pipe 82 has one end connected to external air and the other end connected to the sliding cavity 711, allowing air to be injected into the sliding cavity 711. The connecting pipe 83 connects the telescopic air bladder 72 and the sliding cavity 711 at both ends. The curved heat dissipation pipe 84 extends inside the slide plate 71 and connects to the intake pipe 82. The curved heat dissipation pipe 84 absorbs heat from the slide plate 71, thus dissipating heat from the slide plate 71 and the first auxiliary pulley 222, preventing them from overheating during repeated use and affecting the rack leveling accuracy.

[0066] Specifically, when the telescopic pressure plate 22 presses downwards, if the first auxiliary pulley 222 is not aligned with the tooth groove of the rack, the top column 75 and the second auxiliary pulley 76 will also be pressed against the teeth on the rack. Since the top column 75 is longer, the second auxiliary pulley 76 on the top column 75 will press against the teeth of the rack before the first auxiliary pulley 222. The top column 75 will then drive the piston 73 to slide upwards. The piston 73 will then transport the air in the sliding cavity 711 to the telescopic airbag 72 through the connecting pipe 83. The telescopic airbag 72 will then expand, thereby pressing the slide plate 71 away from the telescopic airbag 72. This will drive the first auxiliary pulley 222 to slide horizontally, and the first auxiliary pulley 222 will automatically move to align with the tooth groove of the rack, thus completing the automatic alignment of the first auxiliary pulley 222 and making the rack fixing more effortless and convenient. When there is too much gas in the telescopic airbag 72, it will be automatically discharged through the overflow pipe 81. When the telescopic pressure plate 22 is lifted upwards, the return spring 74 will drive the piston 73 and the top column 75 to slide downwards and return to their original positions. The slide cavity 711 will also draw in air through the air intake pipe 82 and draw the air in the telescopic airbag 72 back into the slide cavity 711. When the air intake pipe 82 draws in air, it will draw in air from the curved heat dissipation pipe 84 inside the slide plate 71. The curved heat dissipation pipe 84 will absorb the heat from the slide plate 71, thereby dissipating heat from the slide plate 71 and the first auxiliary pulley 222 and preventing the slide plate 71 and the first auxiliary pulley 222 from overheating after repeated use.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A rack levelness correction device, characterized in that, include: Support assembly (1), the support assembly (1) includes a transverse slide rail (11), a fixed frame (12) and a movable frame (13), the fixed frame (12) is connected to one end of the transverse slide rail (11), the movable frame (13) includes a slide table (131) and a frame (132), the slide table (131) is slidably connected to the transverse slide rail (11), and the frame (132) is slidably connected to the slide table (131). Two sets of crimping assemblies (2) are respectively disposed on the fixed frame (12) and the frame body (132). Each crimping assembly (2) includes a base plate (21) and a telescopic pressure plate (22). The base plate (21) is used to support one end of the rack, and the telescopic pressure plate (22) can reciprocate to press against the rack. The slide table (131) can slide along a first direction so that the two sets of crimping assemblies (2) respectively press against both ends of the rack. The frame body (132) can slide along a second direction so that the two base plates (21) are in the same plane. The telescopic pressure plate (22) is provided with a plurality of auxiliary teeth (221), and a first auxiliary pulley (222) is provided at the end of the auxiliary teeth (221) away from the telescopic pressure plate (22), and the first auxiliary pulley (222) can abut against the tooth groove of the rack; The telescopic pressure plate (22) is provided with a sliding groove (223), and the rack leveling correction device further includes a gear tooth adjustment assembly (7), which includes: The slide plate (71) has the auxiliary teeth (221) fixedly connected to it, and the slide plate (71) is slidably disposed in the groove (223). A telescopic airbag (72) is fixedly connected at one end to the telescopic pressure plate (22) and at the other end to the slide plate (71). The telescopic airbag (72) can reciprocate to drive the slide plate (71) to reciprocate along the first direction.

2. The rack levelness correction device according to claim 1, characterized in that, The fixing frame (12) is provided with a receiving groove (122) with a first opening (121), and the rack leveling correction device further includes a torsion assembly (3), which includes: A rotating tube (31) is rotatably connected to the fixed frame (12) and disposed in the receiving groove (122). The crimping assembly (2) is fixedly connected to the inner wall of the rotating tube (31). A sector plate (32) is fixedly connected to the rotating tube (31) at its center end, and a meshing tooth (321) is provided at the distal end of the sector plate (32). A drive gear (33) meshes with the meshing teeth (321); The first motor (34) is fixedly connected to the fixed frame (12) and is used to drive the drive gear (33) to rotate.

3. The rack levelness correction device according to claim 2, characterized in that, The rack leveling correction device further includes a lateral drive assembly (4), which comprises: The first threaded rod (41) is fixedly connected to the transverse slide rail (11) and extends along the first direction; A threaded tube (42) is fitted onto the first threaded rod (41) and engages with the first threaded rod (41). The threaded tube (42) is fixedly connected to the slide table (131). Worm gear (43), which is fixedly connected to the threaded tube (42); A worm (44) meshes with a worm wheel (43) and drives the worm wheel (43) to rotate so that the threaded tube (42) slides along the first direction.

4. The rack levelness correction device according to claim 3, characterized in that, The rack leveling device also includes a crank handle (45), the slide (131) is provided with a mounting hole, and the end of the worm (44) away from the worm wheel (43) passes through the mounting hole to connect to the crank handle (45).

5. The rack levelness correction device according to claim 1, characterized in that, The frame (132) is provided with a slide rail (1321) and a threaded hole (1322). The slide table (131) is disposed in the slide rail (1321). The rack leveling correction device also includes a longitudinal adjustment component (5). The longitudinal adjustment component (5) includes: The second threaded rod (51) extends along the second direction and engages with the threaded hole (1322). The second motor (52) is mounted on the slide (131); A transmission gear set (53) is provided, with one end connected to the output shaft of the second motor (52) and the other end connected to the second threaded rod (51). The transmission gear set (53) can drive the second threaded rod (51) to rotate so that the frame (132) slides along the second direction.

6. The rack levelness correction device according to claim 5, characterized in that, The rack leveling correction device further includes a height inspection component (6), which includes: A laser emitter (61) is mounted on the base plate (21) of the mounting bracket (12); Two photosensitive sensors (62) are fixedly connected to the base plate (21) of the movable frame (13). The two photosensitive sensors (62) are spaced apart along the second direction. The photosensitive sensors (62) can receive the laser emitted by the laser emitter (61). The photosensitive sensors (62) are communicatively connected to the second motor (52). A partition (63) is disposed between the two photosensitive sensors (62).

7. The rack levelness correction device according to claim 1, characterized in that, The slide plate (71) is provided with a sliding cavity (711), one end of which is connected to the telescopic airbag (72). The gear tooth adjustment assembly (7) further includes: A piston (73) is disposed within the sliding cavity (711) to close one end of the sliding cavity (711); A return spring (74) is provided, with one end connected to the slide plate (71) and the other end connected to the piston (73). The return spring (74) always has the tendency to push the piston (73) away from the bottom of the slide cavity (711). A top column (75) is provided at one end, which is connected to the piston (73) and at the other end, which extends out of the sliding cavity (711). A second auxiliary pulley (76) is provided at the other end of the top column (75). The distance between the second auxiliary pulley (76) and the base plate (21) is less than the distance between the first auxiliary pulley (222) and the base plate (21).

8. The rack levelness correction device according to claim 7, characterized in that, The rack leveling correction device further includes an air circuit system (8), which includes: An overflow pipe (81) is provided inside the telescopic pressure plate (22). One end of the overflow pipe (81) is connected to the outside air, and the other end is connected to the telescopic airbag (72). The overflow pipe (81) is used to overflow the air inside the telescopic airbag (72). An air intake tube (82) is provided, one end of which is connected to the external air and the other end of which is connected to the sliding cavity (711). The air intake tube (82) is capable of injecting air into the sliding cavity (711). A connecting pipe (83) is provided, with its two ends connected to the telescopic airbag (72) and the sliding cavity (711), respectively. A curved heat sink (84) extends inside the slide plate (71) and is connected to the air intake pipe (82).

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