Lens grabbing clamp

Abstract

The lens grabbing clamp comprises a stand column, a suction cup is arranged at the lower end of the stand column, a channel and a cavity are formed in the axis direction of the stand column, the channel extends to the lower end face of the stand column, the cavity extends to the upper end face of the stand column, a sealing plate corresponding to the cavity is arranged on the upper end face of the stand column, and a sealing opening communicated with the channel is formed in the bottom of the cavity. The cavity is provided with a spring, the upper end of the spring is provided with a fixing base, the lower end of the spring is provided with a plug matched with the sealing opening in a sealing mode, the outer wall of the stand column is provided with a notch communicated with the cavity, a connecting rod is arranged in the notch in a sliding fit mode, and one end of the connecting rod is connected with the plug. The lens adsorption grabbing device is simple in structure and suitable for small-batch manual assembly operation, adsorption grabbing and putting down of lenses are achieved, a vacuum pump and related equipment are not needed, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lens processing equipment, in particular to a lens grabbing fixture. Background Art

[0002] Lenses are transparent materials with one or more curved surfaces made of optical materials such as glass or resin. Lenses are the most important components of industrial cameras. In order to improve work efficiency in the production of industrial cameras, most automated equipment is used. For example, operators need to use gripping tools to assemble lenses. After grabbing the lenses, they are placed in the lens barrel for assembly. Existing gripping tools generally use vacuum suction cups, that is, the vacuum suction cups adsorb and release the lenses by suction or injection of air. Therefore, related equipment such as vacuum pumps are required. This is suitable for mass production, but not suitable for small-batch manual operations, which increases equipment costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a lens grabbing fixture with a simple structure, which is suitable for small-batch manual assembly operations, realizes the adsorption, grabbing and putting down of the lens, does not require a vacuum pump and related equipment, reduces costs, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lens grabbing fixture, comprising a column, a suction cup is provided at the lower end of the column, a channel and a chamber are provided in the axial direction of the column, the channel extends to the lower end surface of the column, the chamber extends to the upper end surface of the column, a sealing plate is provided on the upper end surface of the column corresponding to the chamber, a sealing port connected to the channel is provided at the bottom of the chamber, a spring is provided in the chamber, a fixing seat is provided at the upper end of the spring, a plug is provided at the lower end of the spring for sealing with the sealing port, a notch connected to the chamber is provided on the outer wall of the column, a connecting rod is slidably fitted in the notch, and one end of the connecting rod is connected to the plug.

[0005] Preferably, the spring is always in a compressed state, the upper end of the spring causes the fixing seat to contact the sealing plate, and the lower end of the spring causes the plug to cooperate with the sealing port and seal the channel.

[0006] Preferably, the sealing opening is a conical groove or a spherical groove, and the end of the plug is a cone or a spherical head correspondingly.

[0007] Preferably, the sealing plate is threadedly connected to the column, and the sealing plate is also threadedly connected to an adjusting bolt, and the end of the adjusting bolt is in conflict with the fixing seat.

[0008] Preferably, the fixing seat is adapted to the chamber, the lower portion of the fixing seat is provided with a notch for fixing the upper end of the spring, and the upper portion of the plug is provided with a notch for fixing the lower end of the spring.

[0009] Preferably, a shoulder is coaxially provided at the lower end of the column, the suction cup is sleeved on the shoulder, and the channel passes through the shoulder and is connected to the suction cup.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the suction cup is placed on the lens, and the column is pressed down, and the column presses down the suction cup. As the downward pressure increases, the air in the suction cup is compressed, and the elastic force of the spring is overcome, the plug is disconnected from the sealing port, and the gas in the suction cup is discharged from the notch, so that the suction cup is in a negative pressure state. When the suction cup is in contact with the lens, no downward pressure is applied. At this time, the plug is reset and the sealing port is sealed under the action of the spring, thereby realizing the adsorption and grasping of the lens. When the lens needs to be placed, the column is held and the connecting rod is pulled, the plug is disconnected from the sealing port, and air enters the suction cup through the notch, the sealing port and the channel, and the lens can be put down. The structure is simple, suitable for small-batch manual assembly operations, no vacuum pump and related equipment are required, and costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model.

[0013] In the figure: 1 closing plate, 2 upright column, 3 connecting rod, 4 suction cup, 5 adjusting bolt, 6 notch, 7 channel, 8 shoulder, 9 chamber, 10 sealing port, 11 plug, 12 spring, 13 fixing seat. DETAILED DESCRIPTION

[0014] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0015] See also Figure 1-2The utility model provides a technical solution: a lens grabbing fixture, comprising a column 2, a suction cup 4 is provided at the lower end of the column 2, a channel 7 and a chamber 9 are provided in the axial direction of the column 2, the channel 7 extends to the lower end surface of the column 2, the chamber 9 extends to the upper end surface of the column 2, a sealing plate 1 is provided at the upper end surface of the column 2 corresponding to the chamber 9, a sealing port 10 connected to the channel 7 is provided at the bottom of the chamber 9, a spring 12 is provided in the chamber 9, a fixing seat 13 is provided at the upper end of the spring 12, a plug 11 is provided at the lower end of the spring 12 and is sealed with the sealing port 10, a notch 6 connected to the chamber 9 is provided on the outer wall of the column 2, a connecting rod 3 is slidably fitted in the notch 6, and one end of the connecting rod 3 is connected to the plug 11; the spring 12 is always in a compressed state, the upper end of the spring 12 makes the fixing seat 13 contact with the sealing plate 1, and the lower end of the spring 12 makes the plug 11 cooperate with the sealing port 10 and block the channel 7;

[0016] It can be understood that during operation, the suction cup 4 is placed on the lens, and then the column 2 is pressed down, and the column 2 presses the suction cup 4 down. As the downward pressure increases, the air in the suction cup 4 is compressed, and the elastic force of the spring 12 is overcome, the plug 11 is disconnected from the sealing port 10, and the gas in the suction cup 4 is discharged from the notch 6, so that the suction cup 4 is in a negative pressure state. When the suction cup 4 is in contact with the lens, no downward pressure is applied. At this time, the plug 11 is reset and the sealing port 10 is blocked under the action of the spring 12, so that the lens is adsorbed and grasped. When the lens needs to be placed, the column 2 is held and the connecting rod 3 is pulled. The connecting rod 3 drives the plug 11 to move up, and the plug 11 is disconnected from the sealing port 10. The air enters the suction cup through the notch 6, the sealing port 10 and the channel 7, and the lens can be put down. The structure is simple, and no vacuum pump and related equipment are required, which reduces costs.

[0017] Specifically, the sealing port 10 is a conical groove or a spherical groove, and the end of the plug 11 is a cone or a spherical head correspondingly, and the reliability of the seal is achieved by the cooperation between the conical groove and the cone or the cooperation between the spherical groove and the spherical head;

[0018] Furthermore, the sealing plate 1 is threadedly connected to the column 2, and the sealing plate 1 is also threadedly connected to an adjusting bolt 5, the end of the adjusting bolt 5 is in conflict with the fixing seat 13, and by turning the adjusting bolt 5, the downward pressure of the plug 11 can be adjusted according to the actual situation;

[0019] Further, the fixing seat 13 is adapted to the chamber 9, the lower portion of the fixing seat 13 is provided with a notch for fixing the upper end of the spring 12, and the upper portion of the plug 11 is provided with a notch for fixing the lower end of the spring 12;

[0020] In addition, a shoulder 8 is coaxially provided at the lower end of the column 2 , the suction cup 4 is sleeved on the shoulder 8 , and the channel 7 passes through the shoulder 8 and is in communication with the suction cup 4 .

[0021] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended to include all changes that fall within the meaning and scope of equivalent elements in the content of the present invention.

Claims

1. A lens grabbing fixture, comprising a column (2), characterized in that: The lower end of the column (2) is provided with a suction cup (4), and the column (2) is provided with a channel (7) and a chamber (9) in the axial direction, the channel (7) extends to the lower end surface of the column (2), and the chamber (9) extends to the upper end surface of the column (2). The upper end surface of the column (2) is provided with a sealing plate (1) corresponding to the chamber (9), and the bottom of the chamber (9) is provided with a sealing opening (10) connected to the channel (7). The chamber (9) is provided with a spring (12), and the upper end of the spring (12) is provided with a fixing seat (13), and the lower end of the spring (12) is provided with a plug (11) that is sealed with the sealing opening (10). The outer wall of the column (2) is provided with a notch (6) connected to the chamber (9), and a connecting rod (3) is slidably fitted in the notch (6), and one end of the connecting rod (3) is connected to the plug (11).

2. A lens grabbing fixture according to claim 1, characterized in that: The spring (12) is always in a compressed state; the upper end of the spring (12) causes the fixing seat (13) to contact the sealing plate (1); and the lower end of the spring (12) causes the plug (11) to cooperate with the sealing opening (10) and seal the channel (7).

3. The lens grabbing fixture according to claim 1, characterized in that: The sealing opening (10) is a conical groove or a spherical groove, and the end of the plug (11) is correspondingly a cone or a spherical head.

4. The lens grabbing fixture according to claim 1, characterized in that: The sealing plate (1) is threadedly connected to the column (2), and the sealing plate (1) is also threadedly connected to an adjusting bolt (5), and the end of the adjusting bolt (5) is in contact with the fixing seat (13).

5. The lens grabbing fixture according to claim 1, characterized in that: The fixing seat (13) is adapted to the chamber (9), the lower portion of the fixing seat (13) is provided with a notch for fixing the upper end of the spring (12), and the upper portion of the plug (11) is provided with a notch for fixing the lower end of the spring (12).

6. The lens grabbing fixture according to claim 1, characterized in that: A shoulder (8) is coaxially provided at the lower end of the column (2), the suction cup (4) is sleeved on the shoulder (8), and the channel (7) passes through the shoulder (8) and is in communication with the suction cup (4).

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