Key pressing mechanism

Abstract

The utility model discloses a key pressing mechanism, which comprises a turntable mechanism, a transportation Z-axis module arranged on the side of the turntable mechanism, a heavy load pressing mechanism arranged on the moving end of the transportation Z-axis module, and an anti-overpressure limiting mechanism arranged on the side of the turntable mechanism, and the anti-overpressure limiting mechanism is arranged below the heavy load pressing mechanism. When the Z-axis module is transported to drive the heavy-load pressing mechanism to move downwards, the heavy-load pressing mechanism is in contact with the anti-overpressure limiting mechanism when the heavy-load pressing mechanism moves to a pressing limit position, and the displacement of the heavy-load pressing mechanism is limited through the anti-overpressure limiting mechanism, so that the key is prevented from being overpressed, and the service life of the key is prolonged. After each group of keys are pressed, the keys are located at stable height positions, the situation that the keys are damaged due to overpressure can be avoided, and the product yield is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automated production and processing, and particularly relates to a key pressing mechanism. Background Art

[0002] With the progress of society and the continuous rapid development of technology, people's living standards and quality of life are constantly improving. People's demand for electronic products such as mobile phones and computers is increasing. Electronic products are increasingly becoming an important and essential part of people's daily lives. In many electronic products, keys need to be installed and pressed for installation. In the prior art, generally, the keys are directly pressed into the products through a pressing mechanism. Due to factors such as the inertia of the pressing block, the output force and pressing stroke of the pressing mechanism may be affected, resulting in certain deviations in the force output and the moving stroke distance each time, which have an impact on the requirements for product consistency and yield.

[0003] Therefore, there are defects in the prior art and improvements are needed. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a key pressing mechanism.

[0005] The technical solution of the utility model is as follows: A key pressing mechanism is provided, including: a turntable mechanism, a transportation Z-axis module arranged beside the turntable mechanism, a heavy-duty downward pressing mechanism arranged on the moving end of the transportation Z-axis module, and an overpressure prevention and limit mechanism arranged beside the turntable mechanism, and the overpressure prevention and limit mechanism is arranged below the heavy-duty downward pressing mechanism.

[0006] Further, the overpressure prevention and limit mechanism includes: a base, and a top rod arranged on the base, and the heavy-duty downward pressing mechanism is in movable contact with the top end of the top rod.

[0007] Further, a buffer block is arranged at the top end of the top rod.

[0008] Further, the top rod adopts an adjusting rod, the base is provided with an adjusting hole corresponding to the adjusting rod, and the adjusting rod moves up and down along the adjusting hole.

[0009] Further, the heavy-duty downward pressing mechanism is detachably and movably arranged on the moving end of the transportation Z-axis module.

[0010] Further, a pressing block protrudes from the bottom of the heavy-duty downward pressing mechanism.

[0011] With the above solution, when the Z-axis module of the present utility model transports the heavy-load pressing mechanism to move downward, when the heavy-load pressing mechanism moves to the pressing limit position, the heavy-load pressing mechanism will contact the overpressure prevention and limit mechanism, and the displacement of the heavy-load pressing mechanism is restricted by the overpressure prevention and limit mechanism, thereby avoiding overpressing the key. After each group of keys is pressed and processed, the keys are all located at a stable height position, and the situation of key damage caused by overpressure can be avoided, effectively ensuring the product yield. Brief Description of the Drawings

[0012] Figure 1 It is a structural schematic diagram of the present utility model. Detailed Embodiment

[0013] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments.

[0014] Please refer to Figure 1 , the present utility model provides a key pressing mechanism, including: a turntable mechanism 1, a transport Z-axis module 2 arranged beside the turntable mechanism 1, a heavy-load pressing mechanism 3 arranged on the moving end of the transport Z-axis module 2, and an overpressure prevention and limit mechanism 4 arranged beside the turntable mechanism 1. The overpressure prevention and limit mechanism 4 is arranged below the heavy-load pressing mechanism 3.

[0015] When performing the key pressing work, the keys to be pressed are moved to the lower part of the heavy-load pressing mechanism 3 through the turntable mechanism 1, the transport Z-axis module 2 is started, and the heavy-load pressing mechanism 3 is driven to move downward, so that the heavy-load pressing mechanism 3 applies pressure on the keys, thereby pressing the keys. When the transport Z-axis module 2 drives the heavy-load pressing mechanism 3 to move downward, when the heavy-load pressing mechanism 3 moves to the pressing limit position, the heavy-load pressing mechanism 3 will contact the overpressure prevention and limit mechanism 4, and the displacement of the heavy-load pressing mechanism 3 is restricted by the overpressure prevention and limit mechanism 4, thereby avoiding overpressing the keys. After each group of keys is pressed and processed, the keys are all located at a stable height position, and the situation of key damage caused by overpressure can be avoided, effectively ensuring the product yield.

[0016] The overpressure prevention and limit mechanism 4 includes: a base 41 and a top rod 42 arranged on the base 41. The heavy-load pressing mechanism 3 is in movable contact with the top end of the top rod 42. The top rod 42 is fixed by the base 41, so as to limit the movement of the heavy-load pressing mechanism 3 through the top rod 42 and avoid the situation of overpressing the keys by the heavy-load pressing mechanism 3.

[0017] In some embodiments, a buffer block is provided at the top end of the ejector rod 42, so as to avoid rigid collision between the heavy-load pressing mechanism 3 and the over-pressure limiting mechanism 4, which may cause damage or generate excessive noise, improve the service life of the overall equipment, and reduce the discomfort brought to nearby operators by the noise. In some embodiments, the buffer block is made of soft rubber material. Further, a buffer silica gel block is used to meet the requirements of buffering, noise reduction and noise elimination, and has a relatively high service life, which can meet the requirements of long-term operation.

[0018] In some embodiments, the ejector rod 42 is an adjustment rod, and the base 41 is provided with an adjustment hole corresponding to the adjustment rod, and the adjustment rod moves up and down along the adjustment hole. The height position is adjusted by the adjustment rod, so as to change the limiting height of the heavy-load pressing mechanism 3 according to the required height position of the product to be pressed, so as to meet the requirement of pressing the keys of products of different specifications and models by the heavy-load pressing mechanism 3. In some embodiments, the adjustment rod is an adjustment bolt, the adjustment hole is a threaded hole, and the adjustment bolt is screwed into the threaded hole. By rotating the adjustment bolt, the length of the ejector rod 42 extending out is adjusted, so as to meet the requirements of different pressing height limits. In some embodiments, a lock nut is sleeved on the adjustment bolt, and the adjustment bolt is fixed by locking the lock nut on the base 41 to prevent the adjustment bolt from moving up and down.

[0019] In some embodiments, the heavy-load pressing mechanism 3 is detachably and movably arranged on the moving end of the transport Z-axis module 2. By providing a detachable heavy-load pressing mechanism 3, it is convenient to carry out corresponding maintenance or replacement work. At the same time, when pressing products of different specifications and sizes, the corresponding heavy-load pressing mechanism 3 can be selected according to the product, so as to ensure the pressing effect of the keys on the product.

[0020] In some embodiments, a pressing block 31 protrudes from the bottom of the heavy-load pressing mechanism 3, so as to facilitate pressing the keys by the pressing block 31 during the pressing operation. Thus, clearance can be provided around the pressing block 31, and the contact surface between the over-pressure limiting mechanism 4 and the heavy-load pressing mechanism 3 can be set higher than the pressing surface where the pressing block 31 presses the keys, so as to avoid affecting the pressing operation.

[0021] In summary, when the transport Z-axis module drives the heavy-load pressing mechanism to move downward in the present utility model, when the heavy-load pressing mechanism moves to the pressing limit position, the heavy-load pressing mechanism will contact the over-pressure limiting mechanism, and the displacement of the heavy-load pressing mechanism is restricted by the over-pressure limiting mechanism, so as to avoid over-pressing the keys. After pressing each group of keys, the keys are all located at a stable height position, and the situation of key damage caused by over-pressing can be avoided, effectively ensuring the product yield.

[0022] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, 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 key pressing mechanism, characterized in that: include: A turntable mechanism, a transport Z-axis module arranged beside the turntable mechanism, a heavy-load pressing mechanism arranged on the moving end of the transport Z-axis module, and an anti-overpressure limiting mechanism arranged beside the turntable mechanism, wherein the anti-overpressure limiting mechanism is arranged below the heavy-load pressing mechanism.

2. The key pressing mechanism according to claim 1, characterized in that: The overpressure prevention and limiting mechanism comprises: a base and a push rod arranged on the base, and the heavy load pressing mechanism is in active contact with the top end of the push rod.

3. The key pressing mechanism according to claim 2, characterized in that: A buffer block is arranged on the top end of the push rod.

4. The key pressing mechanism according to claim 2, characterized in that: The top rod adopts an adjusting rod, and the base is provided with an adjusting hole corresponding to the adjusting rod, and the adjusting rod moves up and down along the adjusting hole.

5. The key pressing mechanism according to claim 1, characterized in that: The heavy-load pressing mechanism is detachably arranged on the moving end of the transport Z-axis module.

6. The key pressing mechanism according to claim 1, characterized in that: The bottom of the heavy-load pressing mechanism protrudes to form a pressing block.

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