Pincer force multiplier gas protection clamping device
Patent Information
- Application Number
- CN202620011183.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-07
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2036-01-07
AI Technical Summary
但是气缸的推力传递到夹头上，为盘式制动件提供的夹紧力有限，常存在夹持力不足的现象，有时存在气源断气，管路漏气或气源气压不足导致气缸失去推力，夹头不能实现夹紧，容易产生安全事故或设备损坏
1、在气缸内设置弹簧，在满足正常气源的使用情况下，弹簧和气缸共同作用下，可提供大于对应气缸拉力 2 倍的夹持力，稳定性更高；
Smart Images
Figure CN224903836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a clamp-type force-multiplying air-cut protection clamping device, belonging to the technical field of clamping and braking devices for disc-shaped parts. Background Technology
[0002] Existing clamping and braking devices for disc brake parts typically employ a direct-push cylinder structure for clamping and braking. The thrust of the cylinder push rod closes the chucks in the clamping device, thus achieving the clamping and braking function. However, the cylinder's thrust, transmitted to the chucks, provides limited clamping force for the disc brake component, often resulting in insufficient clamping force. Sometimes, air supply interruptions, leaks in the pipeline, or insufficient air pressure can cause the cylinder to lose thrust, preventing the chucks from clamping properly and potentially leading to safety accidents or equipment damage. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a clamp-type force-multiplying gas cut-off protection clamping device. When the gas cylinder is cut off, the clamping device can achieve a clamping force greater than the cylinder pulling force. When the gas source is connected, it can provide a clamping force greater than twice the cylinder pulling force, which is safer and more stable.
[0004] To solve the above problems, the specific technical solution of this utility model is as follows: A clamp-type force-multiplying gas cut-off protection clamping device includes a cylinder, a connecting rod device, and a friction plate assembly; the cylinder includes a cylinder body, a piston rod, and a piston; the piston rod extends out of the cylinder body and connects to the connecting rod device, and the end of the connecting rod device is connected to the friction plate assembly; a spring is provided inside the cylinder body, the spring is located on the outer circumference of the piston rod, one end of the spring is supported on the inner cavity end face of the cylinder, and the other end is supported on the piston end face of the cylinder.
[0005] The connecting rod assembly includes a connecting rod pull head, connecting rod I, and connecting rod II; one end of the two connecting rods I is symmetrically hinged to the front end face of the cylinder body; the connecting rod pull head is located between the two connecting rods I and is connected to the piston rod; one end of the two connecting rods II is respectively hinged to the connecting rod pull head, and the other end is hinged to the middle of the connecting rod I.
[0006] The friction plate assembly includes a mounting base and a friction plate; two mounting bases are symmetrically hinged to the front end of the connecting rod I, and the friction plate is positioned on the inner surface of the mounting base to form a jaw.
[0007] The friction pad is a copper-based friction pad.
[0008] The cylinder is a thin cylinder with a groove on the front end face of the cylinder body, and the rear end of the connecting rod pull head is embedded in the groove.
[0009] The spring's torque is greater than the cylinder's pulling force but less than the cylinder's thrust force.
[0010] The clamp-type force-multiplying gas cut-off protection clamping device of this application adopts the above structure and has the following advantages: 1. A spring is installed inside the cylinder. Under normal air supply conditions, the spring and cylinder work together to provide a clamping force greater than twice the corresponding cylinder pulling force, resulting in higher stability. 2. A spring is installed inside the cylinder, which can achieve a clamping force no less than the corresponding cylinder pulling force when the cylinder is cut off, thus improving safety; 3. When the cylinder is cut off, the spring can quickly return to its original position, and the jaws can clamp quickly. 4. The cylinder is a thin cylinder with a groove at the front end, which makes the overall size small, the weight light, and saves space. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the clamping structure of this application.
[0012] Figure 2 This is a schematic diagram of the structure in the non-clamping state of this application.
[0013] Figure 3 This is an application state diagram for this application. Detailed Implementation
[0014] like Figure 1 and Figure 2 As shown, a clamp-type force-multiplying gas cut-off protection clamping device includes a cylinder 10, a connecting rod device 20, and a friction plate assembly 30. The cylinder 10 includes a cylinder body 14, a piston rod 11, and a piston 12. The piston rod 11 extends out of the cylinder body 14 and is connected to the connecting rod device 20. The end of the connecting rod device 20 is connected to the friction plate assembly 30. A spring 13 is provided inside the cylinder body 14. The spring 13 is located on the outer circumference of the piston rod 11. One end of the spring 13 is supported on the inner cavity end face of the cylinder 10, and the other end is supported on the piston 12 end face of the cylinder 10. The torque of the spring 13 is greater than the cylinder pulling force and less than the cylinder thrust force.
[0015] The connecting rod device 20 includes a connecting rod pull head 21, connecting rod I22, and connecting rod II23; one end of the two connecting rods I22 is symmetrically hinged to the front end face of the cylinder body 14; the connecting rod pull head 21 is located between the two connecting rods I22 and is connected to the piston rod 11; one end of the two connecting rods II23 is respectively hinged to the connecting rod pull head 21, and the other end is hinged to the middle of the connecting rod I22.
[0016] The friction plate assembly 30 includes a mounting base 31 and a friction plate 32; the two mounting bases 31 are symmetrically hinged to the front end of the connecting rod I22, and the friction plate 32 is positioned on the inner surface of the mounting base 31 to form a jaw.
[0017] The friction plate 32 is a copper-based friction plate, which ensures that the material of the friction plate is uniform, has good wear resistance, and low wear, thereby further improving the service life of the device.
[0018] The cylinder 10 is a thin cylinder, and a groove is provided on the front end face of the cylinder body 14, into which the rear end of the connecting rod pull head 21 is embedded.
[0019] The working process of the clamp-type force-multiplying gas cut-off protection clamping device in this application is as follows: 1. When there is no air intake at either port A or B of the cylinder, the spring 13 is in the extended state, pushing the piston 12 and causing the connecting rod pull head 21 to be located on the right side. The friction plates 32 of the jaws are clamped together. This is for air cut-off protection. The thrust of the spring 13 acts on the piston 12, and the clamping force of the friction plate assembly 30 is not less than the cylinder pulling force. 2. When air enters through port A and exits through port B, the combined effect of the rightward pulling force of the piston rod 11 formed by the air entering through port A and the spring force creates a pulling force greater than twice that of the cylinder, thus achieving the force-multiplying clamping action of this device. 3. When air enters through port B and exits through port A, piston 12 moves to the left, and piston rod 11 drives connecting rod device 20, causing the jaws formed by the friction plates to open, thus achieving the release action. When the cylinder is in the force-multiplying clamping device, air needs to be exited through port A first, and then air needs to enter through port B.
[0020] like Figure 3 As shown, the clamp-type force-multiplying air-stop protection clamping device of this application can achieve braking clamping of disc parts, including common brake discs, or non-standard brake discs of automated equipment, bearings, pneumatic turntables, manual turntables, low-speed powered and unpowered rotating flanged shafts, manually rotating flanged shafts, etc.; it can also be used in the braking clamping of truss robots in automated production lines, braking clamping of automated intelligent lifting mechanisms, braking clamping of manual and pneumatic robotic arms, etc.; it can also achieve static clamping and provide higher clamping force.
Claims
1. A clamp-type force-multiplying gas cut-off protection clamping device, characterized in that: It includes a cylinder (10), a connecting rod assembly (20), and a friction plate assembly (30); the cylinder (10) includes a cylinder body (14), a piston rod (11), and a piston (12); the piston rod (11) extends out of the cylinder body (14) and is connected to the connecting rod assembly (20), and the end of the connecting rod assembly (20) is connected to the friction plate assembly (30); a spring (13) is provided inside the cylinder body (14), the spring (13) is located on the outer circumference of the piston rod (11), one end of the spring (13) is supported on the inner cavity end face of the cylinder (10), and the other end is supported on the piston (12) end face of the cylinder (10).
2. The clamp-type force-multiplying gas cut-off protection clamping device according to claim 1, characterized in that: The connecting rod device (20) includes a connecting rod head (21), connecting rod I (22) and connecting rod II (23); one end of the two connecting rods I (22) is symmetrically hinged to the front end face of the cylinder body (14); the connecting rod head (21) is located between the two connecting rods I (22) and is connected to the piston rod (11); one end of the two connecting rods II (23) is respectively hinged to the connecting rod head (21), and the other end is hinged to the middle of the connecting rod I (22).
3. The clamp-type force-multiplying gas cut-off protection clamping device according to claim 2, characterized in that: The friction plate assembly (30) includes a mounting base (31) and a friction plate (32); the two mounting bases (31) are symmetrically hinged to the front end of the connecting rod I (22), and the friction plate (32) is positioned on the inner surface of the mounting base (31) to form a jaw.
4. The clamp-type force-multiplying gas cut-off protection clamping device according to claim 3, characterized in that: The friction plate (32) is a copper-based friction plate.
5. The clamp-type force-multiplying gas cut-off protection clamping device according to claim 2, characterized in that: The cylinder (10) is a thin cylinder with a groove on the front end face of the cylinder body (14) and the rear end of the connecting rod pull head (21) is embedded in the groove.
6. The clamp-type force-multiplying gas cut-off protection clamping device according to claim 1, characterized in that: The torque of the spring (13) is greater than the cylinder pulling force but less than the cylinder thrust force.