A bidirectional centering processing device for optical lens injection molding accessories

Abstract

The present invention belongs to the field of accessory processing technology, and discloses a bidirectional centering processing device for optical lens injection molding accessories, comprising a rectangular shell, and two first circular plates located on the outside of the rectangular shell, four linear grooves equidistantly distributed on the side of the two first circular plates close to each other, each of the linear grooves is slidably connected to a long rod, and the free end of each long rod is fixedly connected to a first clamping plate, one side of the first clamping plate is rotatably connected to a second clamping plate, a bidirectional centering mechanism for driving the two first circular plates to move in a horizontal direction is provided in the rectangular shell, a changing component for driving the second clamping plate to rotate to different angles is provided on the first clamping plate, and an adjustment mechanism for driving the first clamping plate and the second clamping plate to move along the linear grooves is provided in the rectangular shell.

Description

Technical Field

[0001] The invention belongs to the technical field of accessories processing, and in particular is a bidirectional centering processing device for optical lens injection molding accessories. Background Art

[0002] Optical lenses are essential components in machine vision systems, directly impacting image quality and the implementation and effectiveness of algorithms. Optical lenses can be categorized by focal length as short-focus, medium-focus, and long-focus.

[0003] There are some injection-molded accessories on the optical lens, and these accessories often need to be polished to remove burrs on their surfaces during injection molding. Before polishing, it is necessary to use a clamping device to clamp and fix the accessories to facilitate subsequent polishing work.

[0004] Bidirectional centering automatically adjusts the workpiece's position through a symmetrical, bidirectional clamping mechanism, precisely aligning its axis with the center of the fixture. For example, the bidirectional threaded structure of the lead screw drives the jaws on both sides to move synchronously, ensuring that the workpiece is always centered in the fixture during clamping.

[0005] However, traditional bidirectional centering fixtures often have difficulty in providing multiple clamping methods, resulting in reduced adaptability of the device. Summary of the Invention

[0006] In order to solve the problem in the above background technology that it is difficult to have multiple clamping methods, the present invention provides a bidirectional centering processing device for optical lens injection molding accessories.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a bidirectional centering processing device for optical lens injection molding accessories, comprising a rectangular shell, and two first circular plates located on the outside of the rectangular shell, four linear grooves equidistantly distributed around the circumference are provided on the side of the two first circular plates close to each other, a long rod is slidably connected in each linear groove, a first clamping plate is fixedly connected to the free end of each long rod, a second clamping plate is rotatably connected to one side of the first clamping plate, a bidirectional centering mechanism for driving the two first circular plates to move in a horizontal direction is provided in the rectangular shell, a changing component for driving the second clamping plate to rotate to different angles is provided on the first clamping plate, and an adjustment mechanism for driving the first clamping plate and the second clamping plate to move along the linear groove is provided in the rectangular shell.

[0008] Preferably, the bidirectional centering mechanism includes two threaded rods rotatably connected in a rectangular housing and coaxially fixed, the two threaded rods are symmetrically distributed and the thread directions on the surfaces are opposite, and both threaded rods are sleeved with internal threaded sleeves threadedly connected thereto.

[0009] Preferably, the surface of the rectangular outer shell is provided with a limiting groove distributed parallel to the threaded rod, and the surfaces of the two internally threaded sleeves are fixedly connected with an L-rod extending to the outside of the rectangular outer shell through the limiting groove, and the end of the L-rod away from the internally threaded sleeve is fixedly connected with a U-shaped seat, and the two first circular plates are respectively fixed on the two U-shaped seats.

[0010] Preferably, the adjustment mechanism includes a second circular plate rotatably connected to the first circular plate, and a worm gear coaxially fixed to the second circular plate, an arc-shaped groove adapted to the long rod is provided on the surface of the second circular plate, and a circular shaft 1 rotatably connected to the U-shaped seat is passed through the two side walls of the U-shaped seat, and a worm is sleeved on the circular shaft 1 and meshes with the worm gear.

[0011] Preferably, two symmetrically distributed rectangular frames are provided in the rectangular housing, and two opposite side walls of the rectangular frame are penetrated by external spline shafts rotatably connected thereto, and the external spline shaft is sleeved with a first bevel gear fixedly connected thereto and located in the rectangular frame.

[0012] Preferably, an inner spline shaft parallel to the threaded rod is rotatably connected in the rectangular shell, the inner spline shaft passes through the outer spline shaft and is adapted to the outer spline shaft, and a strip groove parallel to the inner spline shaft is opened on the surface of the rectangular shell.

[0013] Preferably, the two circular shafts extend into the rectangular shell through the strip groove, and respectively pass through the side walls of the two rectangular frames and then extend into the rectangular frame. The circular shaft is rotatably connected to the rectangular frame, and one end of the circular shaft located in the rectangular frame is provided with a second bevel gear fixedly connected to it, and the second bevel gear is meshed with the first bevel gear.

[0014] Preferably, the changing component includes a circular shaft 2 that passes through the first clamping plate and is rotatably connected to the first clamping plate, the second clamping plate is sleeved on the circular shaft 2 and fixedly connected to the circular shaft 2, one end of the circular shaft 2 is sleeved with an annular sleeve fixedly connected to it, and two symmetrically distributed rectangular seats are fixedly connected to the surface of the annular sleeve, and spring rods are fixedly connected to the two rectangular seats, and the free ends of the spring rods are fixedly connected to ratchets.

[0015] Preferably, a hollow shaft is rotatably connected to the side wall of the first clamping plate, a ratchet is fixedly connected to the inner wall of the hollow shaft, the ratchet is engaged with two ratchet teeth, a gear is fixedly connected to the surface of the hollow shaft, a bending rod is fixedly connected to the side wall of the first circular plate, and the free end of the bending rod is fixedly connected to the rack.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting up a bidirectional centering mechanism, the two first circular plates can be driven to move toward each other or away from each other, and the first circular plate can drive the first clamping plate and the second clamping plate to move accordingly through the long rod; when the first clamping plates and the second clamping plates on both sides move toward each other, they can clamp the accessories to be processed.

[0018] By setting a changing component, the second clamping plate can be driven to rotate to different angles;

[0019] When the second clamping plate and the first clamping plate are in a vertical state, the cylindrical accessory can be clamped and positioned, not only so that the central axis of the accessory is on the same straight line as the central axis of the rectangular shell, but also so that the center position of the accessory can be locked to be on the same horizontal line as the center position of the first circular plate. Figure 1 shown.

[0020] When the cylindrical or other shaped accessories do not need to lock the center position to be on the same horizontal line as the center of the first circular plate, the second clamping plate can be rotated into the movable groove on the surface of the first clamping plate so that the second clamping plate and the first clamping plate are in an overlapping state, such as Figure 4 shown.

[0021] When the second clamping plate and the first clamping plate are at an obtuse angle, Figure 5 As shown, the four first clamping plates and the second clamping plates on the same horizontal plane can clamp and fix the disc-shaped accessory so that the disc-shaped accessory is parallel to the ground;

[0022] The other four first clamping plates and second clamping plates can also clamp and fix the disc-shaped accessories so that the disc-shaped accessories are perpendicular to the ground;

[0023] By providing an adjustment mechanism, the first clamping plate and the second clamping plate can be driven to move closer to the center position of the first circular plate, or to move away from the center position of the first circular plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure inside the rectangular housing of the present invention;

[0026] Figure 3 This is a structural diagram of the location of the linear slot of the present invention;

[0027] Figure 4 This is a schematic structural diagram of the present invention in which the first clamping plate and the second clamping plate are in an overlapping state;

[0028] Figure 5This is a schematic structural diagram of the present invention in which the first clamping plate and the second clamping plate are at an obtuse angle;

[0029] Figure 6 This is a structural schematic diagram of the location of the arc groove of the present invention;

[0030] Figure 7 For the present invention Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 8 For the present invention Figure 2 Schematic diagram of the enlarged structure at B in the middle;

[0032] Figure 9 This is a schematic structural diagram of the rack position of the present invention;

[0033] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure at C in the middle;

[0034] Figure 11 This is a front view of the structure in which the first clamping plate and the second clamping plate are at an obtuse angle in the present invention. Figure 1 ;

[0035] Figure 12 This is a schematic diagram of the structure when the first clamping plate and the second clamping plate are at an obtuse angle in the present invention. Figure 1 .

[0036] In the figure: 1. rectangular shell; 21. first circular plate; 22. linear groove; 23. long rod; 31. first clamping plate; 32. second clamping plate; 41. threaded rod; 42. internal threaded sleeve; 43. limit groove; 44. L rod; 45. U-shaped seat; 51. second circular plate; 52. arc groove; 53. worm gear; 54. circular shaft one; 55. worm; 56. rectangular frame; 57. external spline shaft; 58. first bevel gear; 59. strip groove; 510. second bevel gear; 511. internal spline shaft; 61. circular shaft two; 62. annular sleeve; 63. rectangular seat; 64. spring rod; 65. ratchet; 66. hollow shaft; 67. ratchet; 68. gear; 69. bending rod; 610. rack. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] like Figures 1 to 3As shown, the present invention provides a bidirectional centering processing device for optical lens injection molding accessories, including a rectangular shell 1, and two first circular plates 21 located on the outside of the rectangular shell 1, and four linear grooves 22 equidistantly distributed around the circumference are opened on the side where the two first circular plates 21 are close to each other, and a long rod 23 is slidably connected in each linear groove 22, and the free end of each long rod 23 is fixedly connected to a first clamping plate 31, and a second clamping plate 32 is rotatably connected to one side of the first clamping plate 31.

[0039] A bidirectional centering mechanism for driving the two first circular plates 21 to move in the horizontal direction is provided in the rectangular housing 1 .

[0040] By setting up a bidirectional centering mechanism, the two first circular plates 21 can be driven to move toward each other or away from each other, and the first circular plate 21 can drive the first clamping plate 31 and the second clamping plate 32 to move accordingly through the long rod 23; when the first clamping plates 31 and the second clamping plates 32 on both sides move toward each other, they can clamp the accessories to be processed.

[0041] The first clamping plate 31 is provided with a changing component for driving the second clamping plate 32 to rotate to different angles.

[0042] By setting a changing component, the second clamping plate 32 can be driven to rotate to different angles;

[0043] When the second clamping plate 32 and the first clamping plate 31 are in a vertical state, the cylindrical accessory can be clamped and positioned, not only so that the central axis of the accessory is aligned with the central axis of the rectangular housing 1, but also so that the center position of the accessory is locked to be aligned with the center position of the first circular plate 21. Figure 1 shown.

[0044] When the cylindrical or other shaped accessories do not need to lock the center position to be on the same horizontal line with the center of the first circular plate 21, the second clamping plate 32 can be rotated into the movable groove on the surface of the first clamping plate 31 so that the second clamping plate 32 and the first clamping plate 31 are in an overlapping state, as shown in FIG. Figure 4 shown.

[0045] When the second clamping plate 32 and the first clamping plate 31 are at an obtuse angle, as shown in FIG. Figure 5 As shown, the four first clamping plates 31 and the second clamping plates 32 on the same horizontal plane can clamp and fix the disc-shaped accessories so that the disc-shaped accessories are parallel to the ground, as shown in FIG. Figure 12 As shown;

[0046] The other four first clamping plates 31 and second clamping plates 32 can also clamp and fix the disc-shaped accessories so that the disc-shaped accessories are perpendicular to the ground. Figure 11 As shown;

[0047] An adjusting mechanism for driving the first clamping plate 31 and the second clamping plate 32 to move along the linear groove 22 is provided in the rectangular housing 1 .

[0048] By providing an adjustment mechanism, the first clamping plate 31 and the second clamping plate 32 can be driven to move closer to the center of the first circular plate 21 or to move away from the center of the first circular plate 21 .

[0049] like Figure 2 As shown, the bidirectional centering mechanism includes two threaded rods 41 that are rotatably connected in the rectangular shell 1 and coaxially fixed. The two threaded rods 41 are symmetrically distributed and the thread directions on the surfaces are opposite. The two threaded rods 41 are each sleeved with an internal threaded sleeve 42 threadedly connected thereto. The surface of the rectangular shell 1 is provided with a limiting groove 43 distributed parallel to the threaded rod 41. The surfaces of the two internal threaded sleeves 42 are fixedly connected with an L-rod 44 extending to the outside of the rectangular shell 1 through the limiting groove 43. The end of the L-rod 44 away from the internal threaded sleeve 42 is fixedly connected to a U-shaped seat 45, and the two first circular plates 21 are respectively fixed on the two U-shaped seats 45.

[0050] The threaded rod 41 is driven by an external motor.

[0051] like Figure 6 and Figure 7 As shown, the adjustment mechanism includes a second circular plate 51 rotatably connected to the first circular plate 21, and a worm gear 53 coaxially fixed to the second circular plate 51. The surface of the second circular plate 51 is provided with an arc groove 52 adapted to the long rod 23. A circular shaft 54 ​​rotatably connected to the U-shaped seat 45 is passed through the two side walls thereof, and a worm 55 meshing with the worm gear 53 is sleeved on the circular shaft 54.

[0052] Among them, when the second circular plate 51 and the arc groove 52 rotate, the side wall of the arc groove 52 can push the long rod 23 to slide along the straight groove 22, so that the long rod 23, the first clamping plate 31 and the second clamping plate 32 move closer to the center position of the first circular plate 21, or move away from the center position of the first circular plate 21.

[0053] The worm 55 and the worm wheel 53 can provide a self-locking function for the second circular plate 51 .

[0054] like Figure 8As shown, two symmetrically distributed rectangular frames 56 are provided in the rectangular housing 1, and the two opposite side walls of the rectangular frame 56 are penetrated by an external spline shaft 57 rotatably connected thereto. The external spline shaft 57 is sleeved with a first bevel gear 58 fixedly connected thereto and located in the rectangular frame 56. An internal spline shaft 511 distributed parallel to the threaded rod 41 is rotatably connected in the rectangular housing 1, and the internal spline shaft 511 passes through the external spline shaft 57 and is adapted to the external spline shaft 57.

[0055] The inner spline shaft 511 is driven by an external motor.

[0056] like Figure 8 As shown, a strip groove 59 is provided on the surface of the rectangular housing 1 and is parallel to the inner spline shaft 511. The two circular shafts 54 extend into the rectangular housing 1 through the strip groove 59, and respectively pass through the side walls of the two rectangular frames 56 and then extend into the rectangular frame 56. The circular shaft 54 ​​is rotatably connected to the rectangular frame 56. One end of the circular shaft 54 ​​located in the rectangular frame 56 is covered with a second bevel gear 510 fixedly connected thereto, and the second bevel gear 510 is meshed with the first bevel gear 58.

[0057] By adopting the above solution, when the internal spline shaft 511 rotates, it can drive the external spline shaft 57 to rotate accordingly, and the external spline shaft 57 can drive the first bevel gear 58 sleeved on its surface to rotate accordingly, and the first bevel gear 58 can drive the second bevel gear 510 meshing with it to rotate accordingly, and the second bevel gear 510 can drive the circular shaft 1 54 to rotate accordingly, and the circular shaft 1 54 can drive the worm 55 to rotate accordingly, and the worm 55 can drive the worm gear 53 meshing with it to rotate accordingly, and the worm gear 53 can drive the second circular plate 51 coaxially fixed thereto to rotate accordingly, so that the two second circular plates 51 can be ensured to rotate simultaneously and at the same rotation angle;

[0058] When the circular shaft 1 54 slides along the strip groove 59 , the circular shaft 1 54 can drive the rectangular frame 56 and the outer spline shaft 57 to slide along the inner spline shaft 511 ;

[0059] like Figure 10 As shown, the changing component includes a circular shaft 61 that passes through the first clamping plate 31 and is rotatably connected to the first clamping plate 31, the second clamping plate 32 is sleeved on the circular shaft 61 and fixedly connected to the circular shaft 61, and one end of the circular shaft 61 is sleeved with an annular sleeve 62 fixedly connected to it, and two symmetrically distributed rectangular seats 63 are fixedly connected to the surface of the annular sleeve 62, and spring rods 64 are fixedly connected to the two rectangular seats 63, and the free ends of the spring rods 64 are fixedly connected to ratchet teeth 65.

[0060] like Figure 9 and Figure 10As shown, a hollow shaft 66 is rotatably connected to the side wall of the first clamping plate 31, a ratchet 67 is fixedly connected to the inner wall of the hollow shaft 66, the ratchet 67 is engaged with two ratchet teeth 65, and a gear 68 is fixedly connected to the surface of the hollow shaft 66. A bending rod 69 is fixedly connected to the side wall of the first circular plate 21, and the free end of the bending rod 69 is fixedly connected to the rack 610.

[0061] Working principle of the present invention:

[0062] An external motor drives two coaxially fixed threaded rods 41 to rotate, and the threaded rods 41 can drive the internal threaded sleeves 42 to move horizontally. Since the threads on the surfaces of the two threaded rods 41 are in opposite directions, the two internal threaded sleeves 42 will move toward each other or away from each other.

[0063] The internal threaded sleeve 42 can drive the first circular plate 21, the long rod 23, the first clamping plate 31 and the second clamping plate 32 as well as the second circular plate 51 to move accordingly through the L-shaped rod 44 and the U-shaped seat 45;

[0064] When the first clamping plates 31 on both sides of the rectangular housing 1 move toward each other, the accessories can be clamped and fixed;

[0065] When the position of the first clamping plate 31 needs to be adjusted, the inner spline shaft 511 driven by the motor can drive the outer spline shaft 57 to rotate accordingly, and the outer spline shaft 57 can drive the first bevel gear 58 sleeved on its surface to rotate accordingly, and the first bevel gear 58 can drive the second bevel gear 510 meshing with it to rotate accordingly, and the second bevel gear 510 can drive the circular shaft 1 54 to rotate accordingly, and the circular shaft 1 54 can drive the worm 55 to rotate accordingly, and the worm 55 can drive the worm gear 53 meshing with it to rotate accordingly, and the worm gear 53 can drive the second circular plate 51 coaxially fixed thereto to rotate accordingly, so that the two second circular plates 51 can be ensured to rotate simultaneously and at the same rotation angle;

[0066] When the second circular plate 51 and the arcuate slot 52 rotate, the sidewall of the arcuate slot 52 can push the long rod 23 to slide along the linear slot 22, so that the long rod 23, the first clamping plate 31 and the second clamping plate 32 move closer to the center of the first circular plate 21, or move away from the center of the first circular plate 21.

[0067] When the angle of the second clamping plate 32 needs to be adjusted, the first clamping plate 31 and the second clamping plate 32 are driven to move along the linear groove 22 toward the side close to the bending rod 69, so that the gear 68 and the rack 610 are in a state of mutual meshing. Then, when the gear 68 follows the first clamping plate 31 to move back and forth along the linear groove 22, a reciprocating rotation will be generated. The gear 68 can drive the ratchet 67 to rotate back and forth through the hollow shaft 66, and the ratchet 67 can drive the spring rod 64, the rectangular seat 63, the annular sleeve 62, the circular shaft 61 and the second clamping plate 32 along the linear groove 22 through the ratchet teeth 65. Figure 10 Intermittently rotate in the clockwise direction to change the working angle of the second clamping plate 32;

[0068] The second clamping plate 32 can rotate a complete circle.

[0069] When the second clamping plate 32 and the first clamping plate 31 are in a vertical state, the cylindrical accessory can be clamped and positioned, not only so that the central axis of the accessory is aligned with the central axis of the rectangular housing 1, but also so that the center position of the accessory is locked to be aligned with the center position of the first circular plate 21. Figure 1 shown.

[0070] When the cylindrical or other shaped accessories do not need to lock the center position to be on the same horizontal line with the center of the first circular plate 21, the second clamping plate 32 can be rotated into the movable groove on the surface of the first clamping plate 31 so that the second clamping plate 32 and the first clamping plate 31 are in an overlapping state, as shown in FIG. Figure 4 shown.

[0071] When the second clamping plate 32 and the first clamping plate 31 are at an obtuse angle, as shown in FIG. Figure 5 As shown, the four first clamping plates 31 and the second clamping plates 32 on the same horizontal plane can clamp and fix the disc-shaped accessories so that the disc-shaped accessories are parallel to the ground;

[0072] The other four first clamping plates 31 and second clamping plates 32 can also clamp and fix the disc-shaped accessories so that the disc-shaped accessories are perpendicular to the ground.

[0073] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0074] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bidirectional centering processing device for optical lens injection molding accessories, characterized by: The invention comprises a rectangular shell (1) and two first circular plates (21) located outside the rectangular shell (1), four linear grooves (22) equidistantly distributed on the side of the two first circular plates (21) close to each other are provided, a long rod (23) is slidably connected in each linear groove (22), a free end of each long rod (23) is fixedly connected to a first clamping plate (31), one side of the first clamping plate (31) is rotatably connected to a second clamping plate (32), a bidirectional centering mechanism for driving the two first circular plates (21) to move in a horizontal direction is provided in the rectangular shell (1), a changing component for driving the second clamping plate (32) to rotate to different angles is provided on the first clamping plate (31), and an adjusting mechanism for driving the first clamping plate (31) and the second clamping plate (32) to move along the linear groove (22) is provided in the rectangular shell (1); The changing assembly includes a second circular shaft (61) that passes through the first clamping plate (31) and is rotatably connected to the first clamping plate (31); the second clamping plate (32) is sleeved on the second circular shaft (61) and fixedly connected to the second circular shaft (61); one end of the second circular shaft (61) is sleeved with an annular sleeve (62) fixedly connected thereto; the surface of the annular sleeve (62) is fixedly connected to two symmetrically distributed rectangular seats (63); the two rectangular seats (63) are fixedly connected to a spring rod (64); the free end of the spring rod (64) is fixedly connected to a ratchet (65); A hollow shaft (66) is rotatably connected to the side wall of the first clamping plate (31), a ratchet (67) is fixedly connected to the inner wall of the hollow shaft (66), the ratchet (67) is meshed with two ratchet teeth (65), a gear (68) fixedly connected to the surface of the hollow shaft (66), a bending rod (69) is fixedly connected to the side wall of the first circular plate (21), and a rack (610) is fixedly connected to the free end of the bending rod (69).

2. The bidirectional centering processing device for optical lens injection molding accessories according to claim 1, characterized in that: The bidirectional centering mechanism comprises two threaded rods (41) rotatably connected in a rectangular housing (1) and coaxially fixed, the two threaded rods (41) being symmetrically distributed and having threads on their surfaces in opposite directions, and both threaded rods (41) being sleeved with internal threaded sleeves (42) threadedly connected thereto.

3. The bidirectional centering processing device for optical lens injection molding accessories according to claim 2, characterized in that: The surface of the rectangular shell (1) is provided with a limiting groove (43) distributed parallel to the threaded rod (41); the surfaces of the two internally threaded sleeves (42) are fixedly connected with an L-rod (44) extending to the outside of the rectangular shell (1) through the limiting groove (43); one end of the L-rod (44) away from the internally threaded sleeve (42) is fixedly connected with a U-shaped seat (45); and the two first circular plates (21) are respectively fixed on the two U-shaped seats (45).

4. The bidirectional centering processing device for optical lens injection molding accessories according to claim 3, characterized in that: The adjusting mechanism comprises a second circular plate (51) rotatably connected to the first circular plate (21), and a worm gear (53) coaxially fixed to the second circular plate (51); an arcuate groove (52) adapted to the long rod (23) is provided on the surface of the second circular plate (51); a circular shaft (54) rotatably connected to the U-shaped seat (45) is passed through the two side walls thereof; a worm (55) meshing with the worm gear (53) is sleeved on the circular shaft (54).

5. The bidirectional centering processing device for optical lens injection molding accessories according to claim 4, characterized in that: Two symmetrically distributed rectangular frames (56) are provided in the rectangular housing (1), and two opposite side walls of the rectangular frame (56) are penetrated by an external spline shaft (57) rotatably connected thereto. A first bevel gear (58) is sleeved on the external spline shaft (57) and fixedly connected thereto and located in the rectangular frame (56).

6. The bidirectional centering processing device for optical lens injection molding accessories according to claim 5, characterized in that: An inner spline shaft (511) parallel to the threaded rod (41) is rotatably connected to the rectangular housing (1), the inner spline shaft (511) passes through the outer spline shaft (57) and is mutually adapted to the outer spline shaft (57), and a strip groove (59) parallel to the inner spline shaft (511) is provided on the surface of the rectangular housing (1).

7. The bidirectional centering processing device for optical lens injection molding accessories according to claim 6, characterized in that: The two circular shafts (54) extend into the rectangular housing (1) through the strip groove (59), and respectively penetrate the side walls of the two rectangular frames (56) and then extend into the rectangular frames (56). The circular shaft (54) is rotatably connected to the rectangular frames (56). One end of the circular shaft (54) located in the rectangular frame (56) is sleeved with a second bevel gear (510) fixedly connected thereto, and the second bevel gear (510) and the first bevel gear (58) are meshed with each other.

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