Pneumatic key mounting mechanism

Abstract

The pneumatic key installing mechanism comprises a base, an air cylinder assembly, an air cylinder installing plate, a bidirectional push rod and a push pin, the air cylinder assembly is installed on the base through the air cylinder installing plate, and one output end of the air cylinder assembly is connected with the push pin through the bidirectional push rod. The invention has the beneficial effects that the guide groove structure of the push pin guide seat ensures that the push pin moves along a straight line, the positioning precision of key body installation is improved, the telescopic buffer frames arranged at the two ends are combined with the dual functions of the spring and the damping liquid, the impact force of cylinder movement is effectively absorbed, vibration and noise are reduced, and the service life of equipment is prolonged; the ejector head and the push pin are connected with the two ends of the air cylinder assembly through the two-way push rod to form a symmetrical driving structure, mechanism unbalance loading caused by single-side stress is avoided, the operation stability is improved, flexible installation is achieved through a rubber shock pad of the push head, damage to parts caused by rigid impact is prevented, and the device is suitable for high-precision installation scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of keyboard cap assembly, and specifically to a pneumatic key mounting mechanism. Background Art

[0002] In the field of mechanical manufacturing, as an important part connecting the shaft with transmission components such as gears and pulleys, the installation accuracy and efficiency of the key body directly affect the transmission performance of the mechanical system. Traditional key mounting mechanisms usually adopt manual or simple pneumatic drive methods, and there are the following technical problems: First, there is a lack of an effective buffer and shock absorption structure, which is prone to generate impact force during the high-speed movement of the cylinder, resulting in deviation in the installation position of the key body or damage to the installed components; second, the guiding accuracy of the push pin is insufficient, and it may shake after long-term use, affecting the consistency of key mounting; third, when moving in two directions, the forces at both ends are unbalanced, resulting in poor stability of the mechanism.

[0003] Therefore, a pneumatic key mounting mechanism is proposed to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a pneumatic key mounting mechanism to solve the problems of the device proposed in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A pneumatic key mounting mechanism includes a base, a cylinder assembly, a cylinder mounting plate, a two-way push rod, and a push pin. The cylinder assembly is mounted on the base through the cylinder mounting plate, and one output end of the cylinder assembly is connected to the push pin through the two-way push rod.

[0007] Preferably, a push pin guide seat is mounted on the base, and the push pin guide seat is provided with a guide groove matching the push pin.

[0008] Preferably, the other output end of the cylinder assembly is connected with a top head.

[0009] Preferably, a first telescopic buffer bracket is connected between the cylinder assembly and the two-way push rod.

[0010] Preferably, the first telescopic buffer bracket includes a telescopic cylinder, a telescopic rod, and a piston. The telescopic rod is inserted into the telescopic cylinder through the piston.

[0011] Preferably, a first spring is arranged between the piston and the telescopic cylinder, and a second spring is sleeved on the telescopic rod.

[0012] Preferably, the piston is provided with a plurality of annularly distributed air holes, and the telescopic cylinder is filled with damping liquid.

[0013] Preferably, a shock pad is arranged on the push head of the push pin, and the shock pad is made of rubber material.

[0014] Preferably, a second telescopic buffer frame is connected between the cylinder assembly and the top head, and the first telescopic buffer frame has the same structure as the second telescopic buffer frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The guide groove structure of the push pin guide seat ensures that the push pin moves in a straight line, improving the positioning accuracy of key body installation. The telescopic buffer frames provided at both ends, combined with the dual effects of the spring and damping liquid, effectively absorb the impact force of the cylinder movement, reduce vibration and noise, and extend the service life of the equipment. The top head and the push pin are connected by a bidirectional push rod to both ends of the cylinder assembly, forming a symmetric drive structure, avoiding the offloading of the mechanism caused by unilateral force and improving the operation stability. The rubber shock pad of the push head realizes flexible installation, preventing damage to parts caused by rigid impact, and is applicable to high-precision installation scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and Figure 2 is a schematic structural diagram of the present invention;

[0017] Figure 3 is a schematic diagram of the cylinder assembly of the present invention;

[0018] Figure 4 is a schematic diagram of the bidirectional push rod of the present invention;

[0019] Figure 5 is a structural diagram of the push pin of the present invention;

[0020] Figure 6 and Figure 7 is a schematic structural diagram of the push pin guide seat of the present invention;

[0021] Figure 8 is a structural diagram of the first telescopic buffer frame of the present invention.

[0022] Reference numerals in the drawings: 1, base; 2, cylinder assembly; 3, cylinder mounting plate; 4, bidirectional push rod; 5, push pin; 6, push pin guide seat; 61, guide groove; 7, top head; 8, first telescopic buffer frame; 81, telescopic cylinder; 82, telescopic rod; 83, piston; 84, air hole; 85, first spring; 86, second spring; 9, shock pad; 10, second telescopic buffer frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] The following is combined with the attachedFigure 1-8 A further detailed description of the present invention will be given.

[0025] An embodiment provided by the present invention: a pneumatic key loading mechanism, including a base 1, a cylinder assembly 2, a cylinder mounting plate 3, a two-way push rod 4 and a push pin 5. The cylinder assembly 2 is mounted on the base 1 through the cylinder mounting plate 3, and one output end of the cylinder assembly 2 is connected to the push pin 5 through the two-way push rod 4.

[0026] This structure realizes the automatic drive of the key body installation operation. Compared with manual operation, it significantly improves the key loading efficiency and can ensure a certain installation force and stability.

[0027] A push pin guide seat 6 is mounted on the base 1. The push pin guide seat 6 is provided with a guide groove 61 matching the push pin 5, which provides precise guidance for the movement of the push pin 5. When the push pin 5 pushes the key body for installation, it can move strictly along the predetermined trajectory, avoiding situations such as deviation and shaking. Its beneficial effect is to effectively improve the positioning accuracy of the key body installation, ensure that the key body is accurately installed in place, and thus improve the quality and reliability of the overall assembly of mechanical components.

[0028] The other output end of the cylinder assembly 2 is connected with a top head 7. The other output end of the cylinder assembly 2 is connected with the top head 7 to form a two-way drive structure. When the cylinder assembly 2 reciprocates, the forces at both ends are more balanced, changing the problem of uneven force that may be caused by traditional single-end drive. Its beneficial effect is to enhance the stability of the mechanism operation, reduce vibration and wear caused by uneven force, extend the service life of the mechanism, and at the same time is conducive to improving the smoothness and consistency of the key loading process.

[0029] A first telescopic buffer frame 8 is connected between the cylinder assembly 2 and the two-way push rod 4. Connecting the telescopic buffer frame 8 between the cylinder assembly 2 and the two-way push rod 4 can effectively relieve the impact force generated by the high-speed movement of the cylinder. When the cylinder drives the push pin 5 to act, the telescopic buffer frame 8 can absorb part of the inertial impact and avoid the impact force directly acting on the push pin 5 and the key body. Its beneficial effect is to protect the push pin 5, the key body and the installed components, reduce the damage caused by the impact, and at the same time reduce the vibration and noise during the operation of the equipment, and improve the reliability and comfort of the equipment operation.

[0030] The first telescopic buffer frame 8 includes a telescopic cylinder 81, a telescopic rod 82 and a piston 83. The telescopic rod 82 is inserted into the telescopic cylinder 81 through the piston 83. This structure provides the basis for the realization of the buffer function. Through the relative movement and cooperation of each component, it can flexibly adapt to the impact generated by the movement of the cylinder. Its beneficial effect is that the buffer frame has good buffer performance, can perform corresponding telescopic adjustment according to the actual impact force size, and better plays the buffer role.

[0031] A first spring 85 is arranged between the piston 83 and the telescopic cylinder 81, and a second spring 86 is sleeved on the telescopic rod 82. The first spring 85 provides an axial buffering force to absorb the inertial impact of the cylinder movement, and the second spring 86 assists in resetting and provides a radial stable support. The beneficial effect is that through the double-spring design, the buffering and resetting performance of the buffer frame is further optimized. It can not only effectively buffer the impact, but also ensure that the buffer frame can quickly and stably reset after being stressed, guaranteeing the continuous and stable operation of the mechanism.

[0032] The piston 83 is provided with a plurality of annularly distributed air holes 84, and the telescopic cylinder 81 is filled with damping liquid. By using the damping effect generated by the damping liquid passing through the air holes 84, the movement speed of the piston 83 is slowed down. The beneficial effect is that it realizes the damping shock absorption during the buffering process. Compared with relying solely on spring buffering, it can more effectively reduce the impact load, make the buffering process smoother and softer, and further improve the buffering effect and the stability of the equipment operation.

[0033] A shock pad 9 is arranged on the push head of the push pin 5. The shock pad 9 is made of rubber material, and the elastic deformation of the rubber is used to absorb the residual impact force during the installation process. The beneficial effect is that it realizes the flexible contact between the push pin 5 and the key body, preventing rigid contact from damaging the surfaces of the key body and the installed parts, and is especially suitable for the key body installation of precision parts with high surface quality requirements.

[0034] A second telescopic buffer frame 10 is connected between the cylinder assembly 2 and the top head 7. The first telescopic buffer frame 8 and the second telescopic buffer frame 10 have the same structure, realizing the balanced buffering of the bidirectional movement. Whether the cylinder piston rod extends or retracts, both ends can effectively absorb the impact force, further enhancing the overall stability and buffering effect of the mechanism, and ensuring that the key installation process can proceed smoothly and reliably during the bidirectional movement.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows: The guide groove 61 structure of the push pin guide seat 6 ensures that the push pin 5 moves along a straight line, improving the positioning accuracy of the key body installation; the telescopic buffer frames 8 and 10 arranged at both ends, combined with the dual functions of the springs 85 and 86 and the damping liquid, effectively absorb the impact force of the cylinder movement, reduce vibration and noise, and extend the service life of the equipment; the top head 7 and the push pin 5 are connected to both ends of the cylinder assembly 2 through the bidirectional push rod 4, forming a symmetric drive structure, avoiding the off-axis load of the mechanism caused by unilateral stress, and enhancing the operation stability; the rubber shock pad 9 on the push head realizes flexible installation, preventing rigid impact from damaging the parts, and is suitable for high-precision installation scenarios.

[0036] Working principle: When the piston rod at one end of the cylinder assembly 2 extends, the push pin 5 is driven to move forward along the guide groove 61 of the push pin guide seat 6 through the double-direction push rod 4. The shock pad 9 of the push pin 5 contacts the key body and applies a thrust force to press the key body into the shaft groove or hub groove. During this process, the telescopic rod 82 of the telescopic buffer frame 8 moves along with the push pin 5, and the piston 83 compresses the first spring 85 in the telescopic cylinder 81. At the same time, the damping liquid generates a damping force through the air holes 84 of the piston 83 to slow down the impact speed of the push pin 5, and the rubber shock pad 9 further absorbs the impact force at the moment of contact.

[0037] When the cylinder piston rod retracts, the second telescopic buffer frame 10 at the end of the top head 7 comes into play, balancing the inertial force of the reverse movement through the symmetrical buffer structure to ensure the smoothness of the two-way movement of the entire mechanism. The push pin 5 is accurately reset under the action of the guide groove 61 of the guide seat 6, waiting for the next key installation operation.

[0038] Embodiment 1:

[0039] Arrange the keycaps to be installed neatly on a special tray, and the tray is conveyed to the designated position below the pneumatic key installation mechanism through a conveyor belt. The keycap installation posts on the tray with installed keycaps are aligned with the push pin 5.

[0040] Start the cylinder assembly 2. The piston rod at one end of the cylinder extends, driving the push pin 5 to move forward along the guide groove 61 of the push pin guide seat 6 through the double-direction push rod 4. The groove at the head of the push pin 5 catches the keycap installation post. As the push pin 5 advances, the keycap is smoothly pressed into the corresponding key position on the keyboard base. During the movement of the push pin 5, the telescopic rod 82 of the telescopic buffer frame 8 moves along with the push pin 5, and the piston 83 compresses the first spring 85 in the telescopic cylinder 81. At the same time, the damping silicone oil generates a damping force through the air holes 84 of the piston 83 to slow down the impact speed of the push pin 5, and the rubber shock pad 9 further absorbs the impact force at the moment of contact, ensuring a smooth and damage-free keycap installation process.

[0041] When the keycap installation is completed, the cylinder piston rod retracts, and the second telescopic buffer frame 10 at the end of the top head 7 comes into play, balancing the inertial force of the reverse movement, so that the push pin 5 is accurately reset under the action of the guide groove 61 of the guide seat 6. Subsequently, the conveyor belt conveys the keyboard base with installed keycaps to the next process, and at the same time, a new tray of keycaps to be installed is conveyed to below the mechanism for the next round of keycap installation operation.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A pneumatic keying mechanism, characterized in that: The invention comprises a base (1), a cylinder assembly (2), a cylinder mounting plate (3), a bidirectional push rod (4) and a push pin (5); the cylinder assembly (2) is mounted on the base (1) via the cylinder mounting plate (3); an output end of the cylinder assembly (2) is connected to the push pin (5) via the bidirectional push rod (4).

2. A pneumatic keying mechanism according to claim 1, characterized in that: A push pin guide seat (6) is installed on the base (1), and the push pin guide seat (6) is provided with a guide groove (61) matching the push pin (5).

3. A pneumatic keying mechanism according to claim 1, characterized in that: The other output end of the cylinder assembly (2) is connected to a plug (7).

4. A pneumatic keying mechanism according to claim 1, characterized in that: A first telescopic buffer frame (8) is connected between the cylinder assembly (2) and the bidirectional push rod (4).

5. A pneumatic keying mechanism according to claim 1, characterized in that: The first telescopic buffer frame (8) comprises a telescopic cylinder (81), a telescopic rod (82) and a piston (83), and the telescopic rod (82) is inserted into the telescopic cylinder (81) through the piston (83).

6. A pneumatic keying mechanism as claimed in claim 5, characterized in that: A first spring (85) is arranged between the piston (83) and the telescopic cylinder (81), and a second spring (86) is sleeved on the telescopic rod (82).

7. A pneumatic keying mechanism according to claim 6, characterized in that: The piston (83) is provided with a plurality of annularly distributed air holes (84), and the telescopic cylinder (81) is filled with damping fluid.

8. A pneumatic keying mechanism as claimed in claim 6, characterized in that: The push head of the push pin (5) is provided with a shock absorbing pad (9), and the shock absorbing pad (9) is made of rubber material.

9. A pneumatic keying mechanism as claimed in claim 6, characterized in that: A second telescopic buffer frame (10) is connected between the cylinder assembly (2) and the top head (7); the first telescopic buffer frame (8) and the second telescopic buffer frame (10) have the same structure.

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