Dustproof hook pin clamping cylinder

Abstract

The utility model relates to the technical field of clamping mechanisms, aims to solve the technical problem that the service life of an existing hook pin clamping air cylinder is short due to the fact that the dustproof effect of the existing hook pin clamping air cylinder is poor, and discloses a dustproof hook pin clamping air cylinder which comprises an air cylinder body and a hook pin cylinder body which are integrally connected. The air cylinder body is provided with a piston rod used for driving the connecting rod mechanism, the connecting rod mechanism comprises an induction block connected with the piston rod, the induction block is hinged to a connecting block through a first rotating shaft, the connecting block is hinged to a clamping hook through a second rotating shaft, and the clamping hook is provided with a shaft hole used for rotating around the shaft. And a positioning shaft for positioning the clamping hook through the shaft hole is fixedly arranged in the pin seat. Due to the fact that the clamping hook part rotates around the shaft instead of irregular movement of a traditional hook pin cylinder, a dustproof adjusting block can be arranged, a large gap generated at the position is avoided, and a better dustproof function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping mechanisms, in particular to a dust-proof hook pin clamping cylinder. Background Art

[0002] In industrial application scenarios such as automobile manufacturing, welding processing, and automatic positioning of large workpieces, cylinders are usually used for positioning and clamping workpieces. Due to the large volume of workpieces and complex processing environments, especially a large amount of metal dust is generated during the welding process, which poses higher requirements for the performance of cylinders. Conventional hook pin clamping cylinders need to achieve a large clamping force in a narrow installation space, and at the same time, the cylinder is required to work stably for a long time in an environment with a large amount of dust. Therefore, the cylinders of the existing technology generally have the following problems:

[0003] 1. The clamping force is insufficient, and it is impossible to ensure a stable clamping effect under high-load working conditions, and it lacks an effective self-locking function, and the workpiece is likely to become loose after long-term use, affecting the processing accuracy and safety;

[0004] 2. The dust-proof performance is poor. During the use of the existing hook pin clamping cylinder, dust is likely to enter the inside of the cylinder, resulting in poor operation or even damage, seriously shortening the service life of the cylinder, especially in working conditions with a large amount of dust generated during welding and other processes.

[0005] Facing the above problems, the service life and performance of the existing hook pin clamping cylinder in a complex dust environment far from meet the industrial requirements. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a dust-proof hook pin clamping cylinder to solve the technical problem that the short service life of the existing hook pin clamping cylinder is caused by poor dust-proof effect.

[0007] To achieve the above purpose, the utility model provides a dust-proof hook pin clamping cylinder, which includes an integrally connected cylinder body and a hook pin cylinder body. A connecting rod mechanism is arranged in the hook pin cylinder body, and a piston rod for driving the connecting rod mechanism is arranged on the cylinder body. The connecting rod mechanism includes an induction block connected to the piston rod. The induction block is hinged to a connecting block through a first rotating shaft, the connecting block is hinged to a clamping hook through a second rotating shaft. The clamping hook is provided with a shaft hole for rotating around the axis. A pin seat is arranged at the outer end of the hook pin cylinder body, and a positioning shaft for positioning the clamping hook through the shaft hole is fixedly arranged in the pin seat. The hook part of the clamping hook is used to cooperate with the pin seat to clamp the workpiece.

[0008] Because the clamping hook part rotates around the axis instead of the irregular movement of the traditional hook pin cylinder, the dust-proof self-locking hook pin clamping cylinder can be provided with a dust-proof adjustment block, avoiding large gaps generated at this position, and achieving a better dust-proof function.

[0009] Through the optimized design of the linkage mechanism, the cylinder can provide a large clamping force, which is suitable for working conditions that require strong clamping force. At the same time, the dead point position design of the linkage mechanism is adopted to achieve an effective self-locking function, ensuring that the workpiece will not loosen in the clamped state and improving the safety and stability of the operation.

[0010] Since the clamping hook is designed to rotate around the axis, it overcomes the dust-proof problem caused by the irregular movement of the clamping hook in the traditional hook pin clamping cylinder. With the dust-proof adjustment block set, it avoids dust entering the cylinder interior due to excessive structural gaps during the operation of the cylinder, significantly improving the service life of the cylinder in a dusty environment and being particularly suitable for complex dusty environments such as welding assembly working conditions.

[0011] The utility model has a compact design. The cylinder body is integrally connected with the hook pin cylinder body, occupying a small space and being suitable for installation in working conditions with limited space, meeting the requirements for a compact installation method in industrial applications and expanding the scope of use of the cylinder.

[0012] Furthermore, an installation groove is provided in the pin seat, and a dust-proof block that fits with the clamping hook is installed in the installation groove. The dust-proof block is located on both sides of the clamping hook at the place where it rotates around the axis. The dust-proof block completely fits with the outer side of the clamping hook and moves along with the movement of the clamping hook, thus preventing welding slag and dust from entering the cylinder interior and protecting the internal mechanism of the cylinder.

[0013] Furthermore, the hook pin cylinder body is provided with a sensor for detecting the position of the induction block.

[0014] The sensor can detect the position of the induction block in real time and provide accurate position information, thereby achieving accurate control of the clamping action. By detecting the position of the induction block, the system can timely feedback the working state of the cylinder, ensure the accurate execution of each clamping action, reduce misoperations, improve work efficiency and operation safety.

[0015] Furthermore, inside the cylinder body, the end of the piston rod is fixedly connected with a piston, and the end of the piston rod is also connected with a limit adjusting part.

[0016] The limit adjusting part can accurately control the stroke of the piston rod and prevent excessive or insufficient movement of the piston rod. Through the limit adjusting part, the working stroke of the cylinder can be flexibly adjusted to meet the operation requirements in different application scenarios and improve the adaptability of the cylinder.

[0017] The limit adjusting part can prevent damage to the piston rod caused by excessive stroke during operation, reduce the wear of components, protect the internal structure of the cylinder, effectively extend the service life of the cylinder and reduce the maintenance cost.

[0018] The dust-proof hook pin clamping cylinder provided by the utility model has the following advantages:

[0019] Through structural optimization, the dust-proof hook pin clamping cylinder of the present utility model achieves excellent dust-proof performance, overcomes the problem in the prior art that the irregular movement of the clamping hook easily allows dust to enter the cylinder interior, and in combination with the setting of the dust-proof adjustment block, effectively prevents dust from entering the cylinder, thereby increasing the service life of the cylinder under complex welding conditions. Meanwhile, the design of the connecting rod mechanism enables the cylinder to provide a relatively large clamping force and has a self-locking function, ensuring that the workpiece will not loosen in the clamped state, thus guaranteeing the stability and safety of the operation. In addition, the cylinder has a compact structure, can meet the installation requirements in narrow spaces, the overall movement is smooth and reliable, further improving the operation efficiency and service life of the equipment. Through the application of the sensor, precise control and feedback of the clamping process are realized, enhancing the automation level of the cylinder, which is conducive to improving the automation degree and work efficiency of the production line. Overall, it has significant advantages such as large output force, high durability, and strong adaptability. Brief Description of the Drawings

[0020] Figure 1 is a sectional view of the dust-proof hook pin clamping cylinder provided by the present utility model in the clamped state;

[0021] Figure 2 is a sectional view of the dust-proof hook pin clamping cylinder provided by the present utility model in the released state.

[0022] In the figure: 10, cylinder body; 20, hook pin cylinder body; 30, pin seat; 11, piston; 12, piston rod; 13, limit adjustment member; 21, induction block; 22, connection block; 23, clamping hook; 24, first rotating shaft; 25, second rotating shaft; 31, positioning pin; 32, positioning shaft; 33, dust-proof block. Detailed Embodiments

[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] Refer to Figure 1 and Figure 2, the present utility model provides a dust-proof hook pin clamping cylinder, which includes a cylinder body 10 and a hook pin cylinder body 20 connected integrally. A linkage mechanism is arranged inside the hook pin cylinder body 20. The cylinder body 10 is provided with a piston rod 12 for driving the linkage mechanism. The linkage mechanism includes an induction block 21 connected to the piston rod 12. The induction block 21 is hinged with a connecting block 22 through a first rotating shaft 24. The connecting block 22 is hinged with a clamping hook 23 through a second rotating shaft 25. The clamping hook 23 is provided with a shaft hole for rotating around the axis. A pin seat 30 is arranged at the outer end of the hook pin cylinder body 20. A positioning pin 31 is arranged at the end of the pin seat 30. A positioning shaft 32 for positioning the clamping hook 23 through the shaft hole is fixedly arranged inside the pin seat 30. The hook part of the clamping hook 23 is used to cooperate with the pin seat 30 to clamp the workpiece.

[0025] Because the clamping hook 23 rotates around the axis partially instead of the irregular movement of the traditional hook pin cylinder, a dust-proof adjustment block can be formulated for the dust-proof self-locking hook pin clamping cylinder, avoiding the large gap generated at this position and realizing a better dust-proof function.

[0026] Through the optimized design of the linkage mechanism, the cylinder can provide a strong clamping force, which is suitable for occasions requiring high clamping force. And through the dead point position structure of the linkage mechanism, a stable self-locking function is realized, ensuring that the workpiece will not loosen during the clamping process, thus improving the safety and reliability of the operation. The clamping hook 23 adopts a structural design of rotating around the axis, effectively solving the dust-proof problem brought by the irregular movement of the clamping hook in the traditional hook pin clamping cylinder. With the use of the dust-proof adjustment block, the problem of dust entering due to too large structural gaps during the operation of the cylinder is reduced, significantly prolonging the service life of the cylinder in a high-dust environment, and is especially suitable for complex working conditions such as welding.

[0027] The cylinder is designed compactly. The cylinder body 10 and the hook pin cylinder body 20 are integrally connected, occupying a small space, suitable for installation in a limited space, meeting the requirements of industrial applications for a compact structure, and expanding the application field of the cylinder.

[0028] An installation groove is arranged inside the pin seat 30. A dust-proof block 33 that fits with the clamping hook 23 is installed in the installation groove. The dust-proof block 33 is located on both sides of the place where the clamping hook 23 rotates around the axis. The dust-proof block 33 completely fits with the outer side of the clamping hook 23 and moves along with the movement of the clamping hook 23, thus preventing welding slag and dust from entering the cylinder interior and protecting the internal mechanism of the cylinder. It can effectively prevent the clamping hook from being affected by dust, sundries, etc. when rotating around the axis, thereby prolonging the service life of the clamping mechanism and maintaining its stability and reliability.

[0029] Furthermore, the cancellation cylinder body 20 is equipped with a sensor for detecting the position of the induction block 21, which can provide accurate position information of the induction block 21 in real time, realizing precise control of the clamping action. The sensor can feedback the working state of the cylinder in real time, ensure the accuracy of each clamping action, reduce operation errors, and improve work efficiency and safety.

[0030] In addition, a piston 11 is fixedly connected to the end of the piston rod 12 inside the cylinder body 10, and an adjusting part 13 for adjusting the limit is attached, further ensuring the stability and adjustability of the cylinder action.

[0031] Working principle:

[0032] Under the action of the cylinder, the piston rod drives the induction block to move upward. Through the connection between the shaft and the connecting part, the roller on the shaft of the connecting part is driven to rise along a straight line in the shell groove, and the side of the connecting part away from the induction block rotates counterclockwise along an elliptical track. The force is transmitted through the shaft connected to the hook, causing the hook to rotate clockwise around the shaft in the pin to the clamping state.

[0033] When the cylinder is in the clamping state, the crank - connecting rod mechanism composed of the piston rod, the hook and the connecting block is in the dead - point state, realizing the self - locking function of the cylinder.

[0034] Because the hook part of the cylinder rotates around the shaft instead of the irregular movement of the traditional cancellation cylinder, a dust - proof adjustment block can be formulated for the dust - proof self - locking pin - clamping cylinder, avoiding the large gap generated at this position and realizing a better dust - proof function.

[0035] The dust - proof pin - clamping cylinder provided by the present utility model has the following advantages:

[0036] Through the optimized structural design, the dust - proof pin - clamping cylinder of the present utility model achieves excellent dust - proof effect, solves the problem of dust entry caused by the irregular movement of the clamping hook in the traditional pin - clamping cylinder. With the application of the dust - proof adjustment block, it effectively prevents dust from invading the inside of the cylinder, significantly improving the service life of the cylinder in complex welding working conditions. At the same time, the design of the connecting rod mechanism enables the cylinder to provide a large clamping force and has a self - locking function, ensuring that the workpiece will not loosen in the clamping state, thus improving the safety and stability of the operation. In addition, the cylinder is compact in design, occupies little space, is suitable for installation requirements in narrow spaces, the overall movement is smooth and reliable, improving the efficiency and durability of the equipment operation. Through the use of the sensor, precise control and real - time feedback of the clamping process are realized, improving the automation level of the cylinder, which helps to improve the automation degree and work efficiency of the production line. Overall, it has advantages such as strong output force, high durability and strong adaptability.

[0037] The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dust-proof hook pin clamping cylinder, comprising a cylinder body (10) and a hook pin cylinder body (20) integrally connected. A link mechanism is arranged in the hook pin cylinder body (20), and the cylinder body (10) is provided with a piston rod (12) for driving the link mechanism. It is characterized in that, The link mechanism includes an induction block (21) connected to the piston rod (12). The induction block (21) is hinged with a connecting block (22) through a first rotating shaft (24). The connecting block (22) is hinged with a clamping hook (23) through a second rotating shaft (25). The clamping hook (23) is provided with a shaft hole for rotating around the axis. A pin seat (30) is arranged at the outer end of the pin cylinder body (20). A positioning shaft (32) for positioning the clamping hook (23) through the shaft hole is fixedly arranged in the pin seat (30). The hook part of the clamping hook (23) is used to cooperate with the pin seat (30) to clamp the workpiece.

2. The dust-proof snap clamping cylinder according to claim 1, characterized in that, An installation groove is arranged in the pin seat (30). A dust-proof block (33) attached to the clamping hook (23) is installed in the installation groove. The dust-proof block (33) is located on both sides of the place where the clamping hook (23) rotates around the axis.

3. The dust-proof snap clamping cylinder according to claim 2, characterized in that, The pin cylinder body (20) is provided with a sensor for detecting the position of the induction block (21).

4. The dust-proof snap clamping cylinder according to claim 2, characterized in that, Inside the cylinder body (10), a piston (11) is fixedly connected to the end of the piston rod (12). A limit adjusting part (13) is also connected to the end of the piston rod (12).

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