CN212859450U

CN212859450U - Take vacuum adsorption's automatic equipment rotary fixture of camera lens

Info

Publication number: CN212859450U
Application number: CN202020673276.7U
Authority: CN
Inventors: 刘亚忠; 王百金; 孙强
Original assignee: Suzhou Oriental Croto Photoelectric Technology Co Ltd
Current assignee: Suzhou Oriental Croto Photoelectric Technology Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-04-02
Anticipated expiration: 2030-04-28

Abstract

The utility model relates to a lens automatic assembly rotary fixture with vacuum adsorption, the lower part of the main shaft of the fixture can be driven by a rotary driving mechanism to rotate; the middle part is supported in the shaft hole of the bearing seat through a bearing; the bottom end of the main shaft is connected with a rotary joint; the fixture platform and the two parallel linear guide rails are arranged on the main shaft; the main shaft is hermetically connected with the clamp platform and provided with a through air flow channel; the upper part of the clamp platform is provided with a plurality of vent holes which are communicated with the airflow channel and open on the inner wall of the central hole of the clamp platform; the lens barrel part can be inserted into a central hole of the clamp platform; the two parallel linear guide rails are respectively matched with the sliding grooves at the bottoms of the first clamp movable frame and the second clamp movable frame; the first clamp body and the second clamp body are respectively fixed on the first clamp movable frame and the second clamp movable frame, and the first clamp movable frame and the second clamp movable frame can move along the two linear guide rails in opposite directions and return to achieve the purposes of taking, placing and clamping the lens. The utility model discloses can guarantee the reliable location equipment of lens cone and get the convenience of putting the lens cone.

Description

Take vacuum adsorption's automatic equipment rotary fixture of camera lens

Technical Field

The utility model belongs to the technical field of the automatic kludge of camera lens, a take vacuum adsorption's automatic equipment rotary fixture of camera lens is applied to on the automatic kludge of camera lens is related to.

Background

The lens is composed of a lens cone, lenses, a spacing ring, shading paper, a press ring and the like, and the automatic lens assembling machine is equipment for automatically assembling all components of the lens together. The lens barrel in the lens has an angle limiting relation with the lens, the spacing ring, the shading paper, the pressing ring and the like, and the angle relation between the lens barrel and other components is required to be ensured during assembly. In order to simplify the structure of the apparatus, the positioning structure of the lens barrel is made to be capable of automatically adjusting the angle, so a rotary fixture is required to be designed to ensure the reliable positioning of the lens barrel, the accuracy of each angle during assembly and the convenience of taking and placing the lens barrel.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a take vacuum adsorption's automatic equipment rotary fixture of camera lens, this anchor clamps can guarantee the reliable location equipment of lens cone and get the convenience of putting the lens cone.

In order to solve the technical problem, the automatic assembling rotary fixture with vacuum adsorption for the lens of the utility model comprises a rotary driving mechanism, a bearing seat, a main shaft, a rotary joint and a clamping mechanism; the lower part of the main shaft is connected with a power output shaft of the rotary driving mechanism and can be driven to rotate by the rotary driving mechanism; the middle part is supported in the shaft hole of the bearing seat through a bearing; the bottom end of the main shaft is connected with a rotary joint; the fixture platform and the two parallel linear guide rails are arranged on the main shaft; the main shaft is hermetically connected with the clamp platform and provided with a through air flow channel; the upper part of the clamp platform is provided with a plurality of vent holes which are communicated with the airflow channel and open on the inner wall of the central hole of the clamp platform; the lens barrel part of the lens can be inserted into the central hole of the clamp platform; the clamping mechanism comprises a first clamp movable frame, a second clamp movable frame, a first clamp body and a second clamp body; the two parallel linear guide rails are respectively matched with the sliding grooves at the bottoms of the first clamp movable frame and the second clamp movable frame; the first clamp body and the second clamp body are respectively fixed on the first clamp movable frame and the second clamp movable frame, and the first clamp movable frame and the second clamp movable frame can move in opposite directions along the two linear guide rails and return to achieve lens taking and placing and clamping.

The utility model can also comprise a photoelectric switch and a photoelectric switch baffle; the photoelectric switch is arranged on the outer surface of the bearing seat, and the top of the photoelectric switch is fixedly connected with the edge of the switching disk; when the photoelectric switch baffle rotates along with the main shaft and the switching disc, the photoelectric switch baffle is shielded once every 360 degrees of rotation.

The rotary driving mechanism comprises a motor, a driving belt wheel, a belt and a driven belt wheel; a rotating shaft of the motor is positioned in a shaft hole of the driving belt wheel and is connected with the driving belt wheel, and the driving belt wheel is connected with the driven belt wheel through a belt; the lower part of the main shaft is positioned in the shaft hole of the driven belt wheel and is connected with the driven belt wheel.

The utility model can also comprise a bracket; the driving belt wheel, the belt and the driven belt wheel are arranged in the cavity of the bracket; the motor is fixedly arranged below the bracket; the bearing block is fixed on the bracket.

The utility model can also comprise a switching disk; the adapter plate is connected with a flange at the top of the main shaft, and the contact surface of the adapter plate and the flange is sealed by an O-shaped sealing ring; the two parallel linear guide rails are arranged on the upper surface of the adapter plate; the clamp platform is fixed on the adapter plate, and the contact surfaces of the clamp platform and the adapter plate are sealed through an O-shaped sealing ring; and the main shaft, the adapter plate and the clamp platform are provided with through air flow channels.

The clamping mechanism further comprises a linear driving mechanism, a push rod, a first cam bearing and a second cam bearing, wherein the first cam bearing and the second cam bearing are fixed on the side surfaces of the first clamp body and the second clamp body; the ejector rod is fixedly connected with a power output part of the linear driving mechanism, and the top end of the ejector rod is provided with a conical surface or two opposite slope surfaces; when the ejector rod moves upwards under the action of the linear driving mechanism, the first cam bearing and the second cam bearing can be pulled to be away from each other under the action of the ejector rod, so that the first clamp body and the second clamp body are driven by the first clamp movable frame and the second clamp movable frame to move towards two sides for a large distance.

The clamping mechanism can also comprise a first bolt fixing block, a second bolt fixing block, a first bolt, a second bolt, a first spring and a second spring; the first bolt fixing block and the second bolt fixing block are fixed on two sides of the adapter plate, the first bolt and the second bolt are respectively and fixedly connected with the first bolt fixing block and the second bolt fixing block, and screw rod parts of the first bolt fixing block and the second bolt fixing block are respectively in threaded connection with the first sliding block and the second sliding block in the horizontal blind holes of the first clamp movable frame and the second clamp movable frame; the first spring and the second spring are respectively arranged in the horizontal blind holes of the first clamp movable frame and the second clamp movable frame; after the lens barrel is placed on the clamp platform, the first clamp body and the second clamp body can clamp the lens barrel under the action of the first spring and the second spring.

The coefficient of stiffness of the first spring is larger than that of the second spring.

The first clamp movable frame and the second clamp movable frame are respectively provided with an elongated slot, and the first clamp body and the second clamp body are respectively connected with the first clamp movable frame and the second clamp movable frame through bolts and the elongated slots.

The utility model discloses a whole stand that is fixed in of rotary fixture, when the main shaft is rotatory, establish to the zero point of rotation axis when the photoelectric switch baffle shelters from photoelectric switch, regard this as the zero point of rotational position during the rotation to the angle of the rotatory corresponding angular positioning lens cone of control motor.

Has the advantages that:

1. the lower part of the rotary joint is connected with a vacuum source and can be connected with a vacuum generator or a vacuum pump, when the main shaft rotates, the lens barrel can be fixed by applying suction to the lens barrel through a plurality of vent holes uniformly distributed at the joint of the clamp platform and the lens barrel, and the radial direction of the lens barrel is limited by clamping the lens through the clamping mechanism.

2. The springs with different stiffness coefficients are adopted on the two sides of the clamping mechanism to enable the first clamp body and the second clamp body to clamp the lens, and the accuracy of lens positioning can be further improved.

3. The spindle is reset to zero once by the photoelectric switch every time the spindle rotates one circle, the rotation error can be limited within 360 degrees, and no accumulated error exceeding 360 degrees exists.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a partial plan view of the present invention.

Fig. 4 is a partial sectional view taken along line a-a of fig. 2.

Fig. 5 is a partial cross-sectional view of portion I of fig. 1.

11. A support; 12. a bearing seat; 21. a motor; 22. a driving pulley; 23. a belt; 24. a driven pulley; 31. a main shaft; 32. a main shaft bearing; 33. a switching disk; 34. a clamp platform; 35. a linear guide rail; 4. a rotary joint; an O-ring seal; an O-ring seal; 61. a photoelectric switch; 62. a photoelectric switch baffle plate; 71. a cylinder; 72. a top rod; 81. a first cam bearing; 82. a second cam bearing; 83. a first clamp movable frame; 831. a first slider; 84. a second clamp movable frame; 841. a second slider; 85. a first clamp body; 86. a second clamp body; 91. a first bolt fixing block; 92. a second bolt fixing block; 93. a first bolt; 94. a second bolt; 95. a first spring; 96. a second spring; 100. a lens barrel.

Detailed Description

As shown in fig. 1, the rotary fixture with vacuum adsorption of the present invention includes a rotary driving mechanism, a bracket 11, a bearing seat 12, a main shaft 31, a photoelectric switch 61, and a photoelectric switch baffle 62; a linear driving mechanism and a clamping mechanism.

The rotary driving mechanism comprises a motor 21, a driving belt wheel 22, a belt 23 and a driven belt wheel 24; a rotating shaft of the motor 21 is positioned in a shaft hole of the driving pulley 22 and is connected with the driving pulley 22 through a flat key or a spline, and the driving pulley 22 is connected with the driven pulley 24 through a belt 23; the driving belt wheel 22, the belt 23 and the driven belt wheel 24 are arranged in the cavity of the bracket 11; the motor 21 is fixedly arranged below the bracket 11; the bearing seat 12 is fixed on the bracket 11, and the bearing seat and the bracket can adopt an integral structure or a split structure.

The rotary driving mechanism can also transmit the rotary driving torque of the motor to the main shaft 31 in a gear transmission mode.

The lower part of the main shaft 31 is positioned in a shaft hole of the driven belt wheel 24 and is connected with the driven belt wheel 24 through a flat key or a spline; the bottom of the main shaft 31 is connected with a rotary joint 4, a movable ring at the top of the rotary joint 4 can rotate together with the main shaft 31, and the lower part of the movable ring is fixed; the bearing seat 12 is fixed on the bracket 11, and the middle part of the main shaft 31 is supported in the shaft hole of the bearing seat 12 by a main shaft bearing 32; the adapter plate 33 is connected with a flange at the top of the main shaft 31, and the contact surface of the adapter plate and the main shaft is sealed by an O-shaped sealing ring 51; two parallel linear guide rails 35 are arranged on the upper surface of the adapter plate 33; the clamp platform 34 is fixed on the adapter plate 33, and the contact surface of the two is sealed by an O-shaped sealing ring 52. The spindle 31, the adapter plate 33 and the clamp platform 34 are provided with a through air flow channel which is connected with an external vacuum source through a rotary joint 4.

The utility model discloses can save switching dish 33, directly set up two parallel linear guide 35 at main shaft 31 upper surface, anchor clamps platform 34 is fixed at main shaft 31 upper surface, and contact surface between them passes through O type sealing washer 52 sealedly.

The photoelectric switch 61 is arranged on the outer surface of the bearing seat 12, and the top of the photoelectric switch is fixedly connected with the edge of the adapter plate 33; when the photoelectric switch baffle 62 rotates along with the spindle 31 and the adapter plate 33, the photoelectric switch baffle 62 is shielded once without rotating 360 degrees.

The linear driving mechanism comprises an air cylinder 71 and a mandril 72; the lower part of the mandril 72 is fixedly connected with a piston rod of the cylinder 71; the top of the ejector rod 72 has a truncated cone.

As shown in fig. 2, 3 and 4, the clamping mechanism includes a first cam bearing 81, a second cam bearing 82, a first clamp moving frame 83, a second clamp moving frame 84, a first clamp body 85, a second clamp body 86, a first bolt fixing block 91, a second bolt fixing block 92, a first bolt 93, a second bolt 94, a first spring 95 and a second spring 96; the two parallel linear guide rails 35 are respectively embedded in the sliding grooves at the bottoms of the first clamp movable frame 83 and the second clamp movable frame 84; the first clamp body 85 and the second clamp body 86 are respectively fixed on the first clamp movable frame 83 and the second clamp movable frame 84; the first cam bearing 81 and the second cam bearing 82 are fixed on the side surfaces of the first clamp body 85 and the second clamp body 86 respectively; when the push rod 72 is pushed up by the piston rod of the cylinder 71, the first cam bearing 81 and the second cam bearing 82 are pulled by the push rod to increase the distance therebetween, so that the first clamp body 85 and the second clamp body 86 are driven by the first clamp movable frame 83 and the second clamp movable frame 84 to move to both sides by the increased distance. At this time, the vacuum is released to realize the taking and the placing of the lens barrel 100; the first bolt fixing block 91 and the second bolt fixing block 92 are fixed on two sides of the adapter plate 33, the first bolt 93 and the second bolt 94 are respectively fixedly connected with the first bolt fixing block 91 and the second bolt fixing block 92, and the screw rod part is respectively in threaded connection with the first slider 831 and the second slider 841 in the horizontal blind hole of the first clamp movable frame 83 and the second clamp movable frame 84; the first spring 95 and the second spring 96 are respectively disposed in the horizontal blind holes of the first jig movable frame 83 and the second jig movable frame 84. After the lens barrel 100 is placed on the jig stage 34, the first and

second jig bodies

85, 86 clamp the lens barrel 100 under the action of the first and

second springs

95, 96.

The stiffness coefficient of the first spring 95 is greater than the stiffness coefficient of the second spring 96, so when the cylinder 71 drives the push rod 72 to retract, the first clamp moving frame 83 is pushed by the first spring 95 to contact with the clamp platform 34 for positioning, the second clamp moving frame 84 is pushed by the second spring 96 to cause the second clamp body 86 to clamp the lens barrel 100, the lens barrel 100 is clamped and positioned by the first clamp body 85 and the second clamp body 86, and then the vacuum is opened to suck the lens barrel 100, so that the lens barrel 100 is reliably positioned.

The first clamp movable frame 83 and the second clamp movable frame 84 are respectively provided with an elongated slot, the first clamp body 85 and the second clamp body 86 are respectively connected with the first clamp movable frame 83 and the second clamp movable frame 84 through bolts and elongated slots 832 and 842, the concentricity of the lens barrel and the spindle can be properly adjusted, so that the clamped lens barrel and the spindle have better concentricity, and the angle deviation and the position deviation are small during rotary assembly.

When a lens barrel of a different size is replaced, the different lens barrels can be accommodated by replacing the first and

second jig bodies

85, 86 and the jig platform 34.

As shown in fig. 5, the lower portion of the lens barrel 100 is located in the shaft hole at the top of the jig platform 34, and the top of the jig platform 34 has a plurality of vent holes communicating with the airflow channel, which are open at the contact surface of the lower portion of the lens barrel 100 with the jig platform 34.

When the lens barrel 100 is clamped on the top of the clamp platform 34, the external vacuum source vacuumizes the small holes on the clamp platform 34 through the airflow channel, so as to generate vacuum adsorption force on the lower part of the lens barrel 100; the lens barrel 100 is stably and reliably fixed on the clamp platform 34 under the dual actions of vacuum adsorption force and a clamping mechanism. The motor 21 can drive the main shaft 31 to rotate through the driving belt wheel 22, the belt 23 and the driven belt wheel 24, so as to drive the adapter disc 33 and the clamp platform 34 to rotate; when the spindle 31 rotates, the photoelectric switch baffle 62 is set as the zero point of the rotation axis when it blocks the photoelectric switch 61, and the zero point is set as the zero point of the rotation position when it rotates, so as to control the angle of the motor 21 rotating the positioning lens barrel 100 corresponding to the angle, thereby completing the rotation assembly of the lens barrel. The motor 21 is an alternating current servo motor, the precision is high, and the precision requirement of rotary assembly can be met.

When the cylinder drives the ejector rod to extend out, the cam bearing drives the clamp movable frame 1 and the clamp movable frame 2 to be separated towards two sides, the clamp body 1 and the clamp body 2 are separated towards two sides, vacuum is released, then the assembled lens can be taken away, the lens cone which is not assembled is replaced, and one-time assembly circulation is completed.

The above description has been given of the preferred embodiment of the present invention, but is not limited to this embodiment. It should be understood that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The automatic lens assembling rotary fixture with the vacuum adsorption function is characterized by comprising a rotary driving mechanism, a bearing seat (12), a main shaft (31), a rotary joint (4) and a clamping mechanism; the lower part of the main shaft (31) is connected with a power output shaft of a rotary driving mechanism and can be driven to rotate by the rotary driving mechanism; the middle part is supported in the shaft hole of the bearing seat (12) through a bearing; the bottom end of the main shaft (31) is connected with a rotary joint (4); the clamp platform (34) and the two parallel linear guide rails (35) are arranged on the main shaft (31); the main shaft (31) is connected with the clamp platform (34) in a sealing way, and the main shaft and the clamp platform are provided with through air flow channels; the upper part of the clamp platform (34) is provided with a plurality of vent holes which are communicated with the airflow channel and open on the inner wall of the central hole of the clamp platform; the lens barrel part of the lens can be inserted into the central hole of the clamp platform (34); the clamping mechanism comprises a first clamp movable frame (83), a second clamp movable frame (84), a first clamp body (85) and a second clamp body (86); the two parallel linear guide rails (35) are respectively matched with the sliding grooves at the bottoms of the first clamp movable frame (83) and the second clamp movable frame (84); the first clamp body (85) and the second clamp body (86) are respectively fixed on the first clamp movable frame (83) and the second clamp movable frame (84), and the first clamp movable frame (83) and the second clamp movable frame (84) can move in opposite directions along the two linear guide rails and return to achieve taking, placing and clamping of the lens.

2. The automatic lens assembling rotary jig with vacuum adsorption according to claim 1, further comprising a photoelectric switch (61) and a photoelectric switch shutter (62); the photoelectric switch (61) is arranged on the outer surface of the bearing seat (12), and the top of the photoelectric switch is fixedly connected with the edge of the adapter plate (33); when the photoelectric switch baffle (62) rotates along with the main shaft (31) and the switching disc (33), the photoelectric switch baffle (62) is shielded once per 360-degree rotation.

3. The automatic lens assembling rotary jig with vacuum adsorption of claim 1, wherein the rotary driving mechanism comprises a motor (21), a driving pulley (22), a belt (23), a driven pulley (24); a rotating shaft of the motor (21) is positioned in a shaft hole of the driving belt wheel (22) and is connected with the driving belt wheel (22), and the driving belt wheel (22) is connected with the driven belt wheel (24) through a belt (23); the lower part of the main shaft (31) is positioned in a shaft hole of the driven belt wheel (24) and is connected with the driven belt wheel (24).

4. The automatic lens assembling rotary jig with vacuum adsorption according to claim 3, characterized by further comprising a stand (11); the driving belt wheel (22), the belt (23) and the driven belt wheel (24) are arranged in a cavity of the bracket (11); the motor (21) is fixedly arranged below the bracket (11); the bearing seat (12) is fixed on the bracket (11).

5. The automatic lens assembling rotary jig with vacuum adsorption according to claim 1, further comprising an adapter plate (33); the adapter plate (33) is connected with a flange at the top of the main shaft (31), and the contact surfaces of the adapter plate and the main shaft are sealed by an O-shaped sealing ring; two parallel linear guide rails (35) are arranged on the upper surface of the adapter plate (33); the clamp platform (34) is fixed on the adapter plate (33), and the contact surfaces of the clamp platform and the adapter plate are sealed through an O-shaped sealing ring; the main shaft (31), the adapter plate (33) and the clamp platform (34) are provided with through air flow channels.

6. The automatic lens assembling rotary fixture with vacuum adsorption function as claimed in claim 1, wherein said fixture further comprises a linear driving mechanism, a push rod (72), and a first cam bearing (81) and a second cam bearing (82) fixed on the side surfaces of the first fixture body (85) and the second fixture body (86); the ejector rod (72) is fixedly connected with a power output part of the linear driving mechanism, and the top end of the ejector rod (72) is provided with a conical surface or two opposite slope surfaces; when the push rod (72) moves upwards under the action of the linear driving mechanism, the first cam bearing (81) and the second cam bearing (82) can be pulled to be larger in distance under the action of the push rod, so that the first clamp body (85) and the second clamp body (86) are driven to move to two sides through the first clamp movable frame (83) and the second clamp movable frame (84) to be larger in distance.

7. The automatic lens assembling rotary fixture with vacuum adsorption function as claimed in claim 5, wherein the clamping mechanism further comprises a first bolt fixing block (91), a second bolt fixing block (92), a first bolt (93), a second bolt (94), a first spring (95) and a second spring (96); a first bolt fixing block (91) and a second bolt fixing block (92) are fixed on two sides of the adapter plate (33), a first bolt (93) and a second bolt (94) are respectively fixedly connected with the first bolt fixing block (91) and the second bolt fixing block (92), and screw rod parts of the first bolt fixing block and the second bolt fixing block are respectively in threaded connection with a first sliding block (831) and a second sliding block (841) in horizontal blind holes of a first clamp movable frame (83) and a second clamp movable frame (84); the first spring (95) and the second spring (96) are respectively arranged in horizontal blind holes of the first clamp movable frame (83) and the second clamp movable frame (84); after the lens barrel (100) is placed on the jig platform (34), the first jig body (85) and the second jig body (86) can clamp the lens barrel (100) under the action of the first spring (95) and the second spring (96).

8. The automatic lens assembling rotary fixture with vacuum adsorption function as claimed in claim 7, wherein the first spring (95) has a coefficient of stiffness greater than that of the second spring (96).

9. The automatic lens assembling rotary jig with vacuum adsorption according to claim 1, wherein the first jig movable frame (83) and the second jig movable frame (84) have long grooves, respectively, and the first jig body (85) and the second jig body (86) are connected to the first jig movable frame (83) and the second jig movable frame (84) through bolts and the long grooves, respectively.