Mechanical assisted loosening mechanism

Abstract

The utility model discloses a kind of mechanical auxiliary loosening mechanisms, it is located on shell, disc surface is equipped on the shell, and it includes: locking assembly, the locking assembly is located in the shell, and the locking assembly is used to loosen disc surface locking;Proximity switch, it is located in the shell, and the proximity switch is used to link the locking assembly. The mechanical auxiliary loosening mechanism, by integrating spring energy storage structure in locking assembly, effectively solve the core defects of existing pure hydraulic drive turntable, have remarkable beneficial effect: it is pre-stored with the mechanical energy of spring, when loosening instruction triggers and hydraulic system synergism, can provide explosive driving force for the next clutch tooth, greatly shorten the response time of clutch tooth from meshing to disengaging, break through the action lag bottleneck caused by hydraulic oil viscous resistance, significantly improve the indexing efficiency of turntable.

Description

Technical Field

[0001] This utility model relates to the field of machine tool processing technology, specifically to a mechanically assisted release mechanism. Background Technology

[0002] As a core component for multi-station continuous machining of workpieces, the indexing efficiency of the rotary table directly determines the overall production cycle and capacity of the machine. The indexing process of the rotary table requires a sequential cycle of "release → rotation → locking." The release response speed of the clutch teeth is the key bottleneck restricting the entire indexing cycle. Only by quickly disengaging the clutch teeth can subsequent actions such as spindle drive rotation and precise positioning and locking be efficiently connected. In high-frequency indexing scenarios such as valve processing, the millisecond-level delay of a single release action, accumulated over thousands of cycles, significantly reduces equipment production efficiency. Therefore, optimizing the drive method of the clutch teeth and improving their release response speed and operational reliability has become a core requirement for the technological upgrade of machine tool rotary tables.

[0003] In existing technologies, the engagement and disengagement of rotary table clutch teeth largely rely on pure hydraulic systems. Specifically, hydraulic oil is delivered via a piston cylinder to push the lower clutch tooth to slide axially, achieving engagement or disengagement with the upper inner and outer clutch teeth. However, this approach has inherent drawbacks: First, the hydraulic oil flow suffers from viscous resistance and pipeline losses, resulting in slow pressure build-up and delayed clutch tooth response, thus prolonging the engagement preparation time. Second, the lower clutch tooth undergoes an "acceleration-deceleration" process under hydraulic drive, increasing not only the total disengagement time but also energy loss. Third, hydraulic drive is prone to impact vibration during high-speed indexing, affecting the meshing accuracy of the lower clutch tooth with other gear sets, reducing positioning accuracy and shortening component lifespan. These problems make hydraulically driven rotary tables unsuitable for high-cycle machining requirements, necessitating improvements to the drive structure to overcome efficiency bottlenecks. Utility Model Content

[0004] The purpose of this invention is to provide a mechanically assisted release mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanically assisted releasing mechanism, which is disposed on a housing, the housing having a disc surface, comprising:

[0006] A locking assembly, disposed in the housing, is used to lock and release the disc surface;

[0007] A proximity switch, disposed in the housing, is used to activate the locking assembly.

[0008] Preferably, the locking assembly includes a piston cylinder disposed on the housing, the piston cylinder having a lower clutch tooth, and the lower clutch tooth having a piston sleeve.

[0009] Preferably, the locking assembly further includes an upper outer clutch tooth disposed on the housing, the upper outer clutch tooth and the lower clutch tooth engaging;

[0010] The upper inner clutch tooth is provided on the disk surface, and the upper inner clutch tooth and the lower clutch tooth mesh with each other.

[0011] Preferably, the locking assembly further includes a spring fixing bolt, which is disposed on the housing and has a spring connected to it, and is used to fix the spring.

[0012] Preferably, the locking assembly further includes a spring plate, which is disposed on the lower clutch tooth, and the middle of the spring plate is connected to the spring.

[0013] Preferably, a main shaft is connected to the housing, one end of the main shaft is disposed on the disk surface, the other end is connected to a ratchet disk, and a worm gear is provided on the outer side of the main shaft.

[0014] Preferably, the housing is provided with a worm gear, which meshes with the worm wheel.

[0015] Preferably, the ratchet disc is connected with ratchet teeth.

[0016] Preferably, the switch holder is disposed on the housing, and the switch holder corresponds to the proximity switch.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This mechanically assisted release mechanism, by integrating a spring energy storage structure into the locking assembly, effectively solves the core defects of existing pure hydraulically driven turntables and has significant beneficial effects: With the help of the mechanical energy pre-stored by the spring, it works in conjunction with the hydraulic system when the release command is triggered, and can instantly provide explosive driving force to the lower clutch teeth, greatly shortening the response time of the clutch teeth from engagement to disengagement, breaking through the bottleneck of motion lag caused by the viscous resistance of hydraulic oil, and significantly improving the indexing efficiency of the turntable; at the same time, the spring energy release-assisted drive reduces the time and energy loss of the "acceleration-deceleration" process of the lower clutch teeth, and reduces the overall energy consumption of the system; and this coordinated drive method can reduce the impact vibration when the clutch teeth engage and disengage, improve the meshing accuracy of the lower clutch teeth and the upper inner and outer clutch teeth, thereby improving the positioning accuracy of the turntable and extending the service life of components such as the gear group, especially suitable for high-cycle machining scenarios, ultimately helping to improve the production cycle and capacity of the machine tool, and the overall structural modification is simple, the modification cost is low, and the practicality is strong. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2This utility model Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a schematic diagram of the clutch tooth structure of this utility model.

[0021] In the diagram: 1. Housing; 2. Disc; 3. Main shaft; 4. Worm; 6. Worm wheel; 7. Racket disc; 8. Racket; 9. Switch base; 10. Proximity switch; 11. Locking assembly; 111. Piston cylinder; 112. Lower clutch tooth; 113. Piston sleeve; 114. Upper outer clutch tooth; 115. Upper inner clutch tooth; 116. Spring fixing bolt; 117. Spring; 118. Spring plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a mechanically assisted loosening mechanism, which is disposed on a housing 1. The housing 1 is provided with a disc surface 2. A main shaft 3 is connected to the housing 1. One end of the main shaft 3 is disposed on the disc surface 2, and the other end is connected to a ratchet disc 7. A worm wheel 6 is provided on the outer side of the main shaft 3. A worm 4 is provided on the housing 1. The worm 4 and the worm wheel 6 mesh with each other. A ratchet tooth 8 is connected to the ratchet disc 7.

[0024] This mechanically assisted loosening mechanism uses housing 1 as the basic support carrier. The main shaft 3 is connected to housing 1, with one end connected to the disc 2 and the other end connected to the ratchet disc 7. A worm gear 6 is fixed on the outside of the main shaft 3, and the worm 4 on housing 1 meshes with the worm gear 6. The ratchet disc 7 is connected with ratchet teeth 8. During operation, external power drives the worm 4 to rotate. Through the meshing transmission between the worm 4 and the worm gear 6, the main shaft 3 rotates synchronously. The main shaft 3 then drives the disc 2, which is used to carry the workpiece to be processed, and the ratchet disc 7 to rotate, realizing the position conversion of the disc 2. At the same time, the ratchet teeth 8 on the ratchet disc 7 rotate with it and can be used as a position detection reference to cooperate with relevant detection components to realize the precise positioning of the turntable and provide position basis for subsequent locking or loosening actions.

[0025] A locking assembly 11 is disposed in the housing 1 and is used to lock and release the disc surface 2. The locking assembly 11 includes a piston cylinder 111 disposed on the housing 1, a lower clutch tooth 112 disposed on the piston cylinder 111, a piston sleeve 113 disposed on the lower clutch tooth 112, an upper outer clutch tooth 114 disposed on the housing 1, the upper outer clutch tooth 114 meshing with the lower clutch tooth 112, and an upper inner clutch tooth 115 disposed on the disc surface 2, the upper inner clutch tooth 115 meshing with the lower clutch tooth 112.

[0026] The locking assembly 11 is located in the housing 1. Its core mechanism achieves locking and unlocking of the disc surface 2 through the axial sliding of the lower clutch tooth 112. Its working principle is as follows: When the disc surface 2 needs to be locked, the piston cylinder 111 mounted on the housing 1 drives the lower clutch tooth 112 to move axially until the lower clutch tooth 112 simultaneously engages fully with the upper outer clutch tooth 114 fixed on the housing 1 and the upper inner clutch tooth 115 fixed on the disc surface 2. Through the fixed relationship between the upper outer clutch tooth 114 and the housing 1, and the upper inner clutch tooth 115... The connection between the disc 15 and the disc 2 is achieved by using the intermediate meshing of the lower clutch tooth 112 to fix the disc 2 relative to the housing 1, thus locking the disc 2. When the disc 2 needs to be released, the piston cylinder 111 drives the lower clutch tooth 112 to slide in the opposite direction, causing it to disengage from the meshing state with the upper outer clutch tooth 114 and the upper inner clutch tooth 115, so that the disc 2 can rotate freely. The piston sleeve 113 on the lower clutch tooth 112 can limit its sliding stroke to avoid excessive movement that could lead to abnormal meshing of the gear set or structural damage.

[0027] The locking assembly 11 further includes a spring fixing bolt 116, which is disposed on the housing 1 and a spring 117 is connected to the spring fixing bolt 116. The spring fixing bolt 116 is used to fix the spring 117. The locking assembly 11 also includes a spring plate 118, which is disposed on the lower clutch tooth 112 and connected to the spring 117 in the middle.

[0028] In the locking assembly 11, the spring fixing bolt 116 is fixed to the housing 1. Its core function is to securely connect and position the spring 117, preventing the spring 117 from shifting under force. The spring plate 118 is mounted on the lower clutch tooth 112, with its middle part connected to the spring 117, forming a force transmission link of "spring 117-spring plate 118-lower clutch tooth 112". When locking is performed, the lower clutch tooth 112 moves axially under the drive of the piston cylinder 111, causing the spring plate 118 to move synchronously, compressing the spring 117 and storing mechanical energy. When the disc 2 needs to be released, the spring 117 releases the stored energy and transmits the force to the lower clutch tooth 112 through the spring plate 118, assisting it to slide quickly in the opposite direction to disengage from the upper outer clutch tooth 114 and the upper inner clutch tooth 115, improving the response speed and reliability of the release action.

[0029] A proximity switch 10 is disposed in the housing 1. The proximity switch 10 is used to activate the locking assembly 11. A switch base 9 is disposed on the housing 1, and the switch base 9 corresponds to the proximity switch 10.

[0030] A switch base 9 mounted on the housing 1 is used to install and position the proximity switch 10, ensuring that the proximity switch 10 is in a preset detection position, providing a fundamental support for the stability and accuracy of position detection. The proximity switch 10 is installed in the housing 1 corresponding to the switch base 9. Its core function is to detect the status of relevant position reference components of the turntable in real time, such as the state of the ratchet 8 on the ratchet disc 7. When the turntable disc 2 is detected to have rotated to the target position, the proximity switch 10 will output an electrical signal to link with the locking assembly 11. This linkage signal can precisely control the timing of the locking assembly 11's action. That is, after the disc 2 reaches the position, the signal triggers the locking assembly 11 to perform the locking action; and when it is necessary to loosen the disc 2 for indexing, the signal from the proximity switch 10 can also cooperate with system commands to cause the locking assembly 11 to start the loosening process, realizing precise coordination between turntable position conversion and locking / loosening actions.

[0031] When the mechanically assisted release mechanism is used, the housing 1 is connected to the main shaft 3, the worm gear 4, and the switch seat 9, and has a built-in locking assembly 11. One end of the main shaft 3 is connected to the disc 2 and the other end is connected to the ratchet disc 7. The outer side is provided with a worm wheel 6 that meshes with the worm gear 4. The ratchet disc 7 is connected with ratchet teeth 8. The switch seat 9 is equipped with a proximity switch 10. The locking assembly 11 includes a piston cylinder 111, an upper outer clutch tooth 114, and a spring fixing bolt 116 provided on the housing 1. The piston cylinder 111 is provided with a lower clutch tooth 112 with a piston sleeve 113. The disc 2 is provided with an upper inner clutch tooth 115 that meshes with the lower clutch tooth 112. The spring fixing bolt 116 fixes the spring 117. The spring plate 118 on the lower clutch tooth 112 is connected to the spring 117. During operation, external power drives the worm gear 4 to rotate. The meshing of the worm gear 4 and worm wheel 6 drives the spindle 3 to rotate, which in turn drives the disc 2, carrying the workpiece to be processed, and the ratchet disc 7 to rotate, achieving position switching. The ratchet 8, rotating with the ratchet disc 7, provides a position reference for the proximity switch 10. When the proximity switch 10 detects that the disc 2 has reached the target position, it outputs a signal to activate the locking assembly 11. The piston cylinder 111 drives the lower clutch tooth 112 to move axially, engaging it with the upper outer clutch tooth 114 and the upper inner clutch tooth 115, thus fixing the disc 2 relative to the housing 1. During the locking process, the spring plate 118 moves with the lower clutch tooth 112 to compress the spring 117 and store mechanical energy. When the disc 2 needs to be released, the proximity switch 10 triggers the locking assembly 11 in conjunction with the system command. The spring 117 releases energy and transmits it to the lower clutch tooth 112 through the spring plate 118. The auxiliary piston cylinder 111 drives the lower clutch tooth 112 to slide in the opposite direction and disengage. The piston sleeve 113 limits its stroke. After the release is completed, the disc 2 can rotate again with the spindle 3. This cycle achieves precise and efficient station switching and locking / releasing actions.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanically assisted release mechanism, disposed on a housing (1), wherein the housing (1) is provided with a disc surface (2), characterized in that, include: Locking assembly (11), which is disposed in the housing (1), is used to lock and release the disc surface (2); A proximity switch (10) is disposed in the housing (1) and is used to activate the locking assembly (11).

2. The mechanically assisted release mechanism according to claim 1, characterized in that: The locking assembly (11) includes a piston cylinder (111) disposed on the housing (1), the piston cylinder (111) is provided with a lower clutch tooth (112), and the lower clutch tooth (112) is provided with a piston sleeve (113).

3. The mechanically assisted release mechanism according to claim 2, characterized in that: The locking assembly (11) further includes an upper outer clutch tooth (114) disposed on the housing (1), the upper outer clutch tooth (114) and the lower clutch tooth (112) meshing with each other; The upper inner clutch tooth (115) is provided on the disk surface (2), and the upper inner clutch tooth (115) and the lower clutch tooth (112) mesh with each other.

4. The mechanically assisted release mechanism according to claim 2, characterized in that: The locking assembly (11) further includes a spring fixing bolt (116), which is disposed on the housing (1) and a spring (117) is connected to the spring fixing bolt (116). The spring fixing bolt (116) is used to fix the spring (117).

5. The mechanically assisted release mechanism according to claim 4, characterized in that: The locking assembly (11) further includes a spring plate (118), which is disposed on the lower clutch tooth (112) and is connected to the spring (117) in the middle.

6. The mechanically assisted release mechanism according to claim 1, characterized in that: A main shaft (3) is connected to the housing (1). One end of the main shaft (3) is located on the disk surface (2), and the other end is connected to a ratchet disk (7). A worm gear (6) is provided on the outside of the main shaft (3).

7. The mechanically assisted release mechanism according to claim 6, characterized in that: The housing (1) is provided with a worm (4), and the worm (4) meshes with the worm wheel (6).

8. The mechanically assisted release mechanism according to claim 6, characterized in that: The ratchet disc (7) is connected to ratchet teeth (8).

9. A mechanically assisted releasing mechanism according to claim 8, characterized in that: The switch base (9) is disposed on the housing (1), and the switch base (9) corresponds to the proximity switch (10).

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