Piston with locking structure

Abstract

The utility model discloses a piston with a locking structure, which comprises a mounting plate, an adjusting mounting cavity is arranged in the mounting plate, a bottom plate is mounted at the bottom of the adjusting mounting cavity on the mounting plate, a first piston is fixedly mounted on the surface of the bottom plate, a plurality of uniformly arranged through holes are arranged on the circumference of the top of the first piston, and positioning steel balls are slidably mounted in the through holes. A second piston is slidably mounted in the first piston, a spring is mounted on the lower side of the second piston, the free end of the spring is mounted on the bottom plate, a steel ball abutting slope is arranged on the upper side of the second piston, and an arc groove matched with the positioning steel ball in appearance is formed in the position, on the upper side of the steel ball abutting slope, of the second piston. The inner side of the third piston is provided with an assembly groove matched with the first piston in shape, the assembly groove is provided with a limiting groove at the positioning steel ball, the top of the third piston penetrates through the mounting plate and extends to the upper side of the mounting plate, and the top of the third piston is further provided with a guide mounting plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to numerical control machine tool technical field, concretely relates to a piston with locking structure. BACKGROUND

[0002] Numerical control machine tool is the short name of digital control machine tool, it is a kind of automatic machine tool equipped with program control system.The control system can logically process the program with control code or other symbolic instruction specification, and it is translated by code, with code number, and is input to numerical control device through information carrier.Various control signals are sent by numerical control device after operation processing, and the action of machine tool is controlled, and the shape and size required by drawing are automatically processed to process parts, when numerical control machine tool is used, the machining parts need to be fixed, but the existing machine tool only locks by simple inside support, cannot effectively fix the workpiece processed, and the machining parts are prone to float in the process of processing, and are prone to fall off, therefore, we propose a piston with locking structure to solve the above problems. CONTENT OF UTILITY MODEL

[0003] In view of the problems in the above background technology, the utility model aims at providing a piston with locking structure.

[0004] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0005] A piston with locking structure, including mounting plate, the mounting plate is equipped with adjusting installation cavity, the mounting plate is installed with bottom plate at the bottom of adjusting installation cavity, the surface of bottom plate is fixedly installed with first piston, the top circle of first piston is equipped with a plurality of evenly arranged through holes, the through hole is slidably installed with positioning steel ball, the inside of first piston is slidably installed with second piston, the lower side of second piston is installed with spring, the free end of spring is installed on bottom plate, the upper side of second piston is equipped with steel ball pressure inclined surface, the upper side of second piston at steel ball pressure inclined surface is equipped with arc groove matched with the shape of positioning steel ball, the adjusting installation cavity is slidably installed with third piston, the inner side of third piston is equipped with assembly groove matched with the shape of first piston, the third piston is slidably arranged on the outer side of first piston through assembly groove, the assembly groove is equipped with limiting groove at positioning steel ball, the top of third piston penetrates mounting plate and extends to its upper side, the top of third piston is also installed with guide mounting plate.

[0006] Further limited, the bottom of second piston is equipped with inner groove, and the top of spring is installed in the inner groove.Such structure design facilitates the installation and use of spring.

[0007] Further limited, the outer side of the first piston is mounted with a first sealing ring, the inner side of the first piston is mounted with a second sealing ring, the bottom of the first piston is mounted with a third sealing ring, the lower side of the outer side of the second piston is mounted with a fourth sealing ring, the lower side of the outer side of the third piston is mounted with a fifth sealing ring, and the mounting plate is mounted with a sixth sealing ring at the through part of the third piston. Such a structure design improves the sealing effect during use.

[0008] Further limited, the mounting plate, the adjusting mounting cavity and the first piston are provided with a first air channel, the output end of the first air channel is arranged at the inner side of the first piston, the mounting plate and the adjusting mounting cavity are provided with a second air channel, the input end of the second air channel is arranged at the lower side of the second piston, and the mounting plate and the adjusting mounting cavity are further provided with a third air channel, and the output end of the third air channel is arranged at the lower side of the third piston. Such a structure design facilitates the use of ventilation.

[0009] Further limited, the outer side of the guide mounting plate is further mounted with a quick-change workbench. Such a structure design facilitates the clamping of the machined part outside the machine, and directly replaces the workbench on the guide mounting plate when parking, thereby reducing the auxiliary waiting time of the machine tool.

[0010] The piston with the locking structure has the advantages that: through the adjusting control of the second piston and the third piston, the third piston can be locked and fixed, and loosened and adjusted, the workbench is conveniently installed, the installed workbench can be locked and fixed, floating of the workbench during work can be effectively prevented, the workbench does not fall off, and parts on the workbench can be stably machined. BRIEF DESCRIPTION OF DRAWINGS

[0011] The piston with the locking structure has the advantages that: through the adjusting control of the second piston and the third piston, the third piston can be locked and fixed, and loosened and adjusted, the workbench is conveniently installed, the installed workbench can be locked and fixed, floating of the workbench during work can be effectively prevented, the workbench does not fall off, and parts on the workbench can be stably machined.

[0012] Figure 1 FIG. 1 is a schematic view of the shaft side structure of the piston with the locking structure according to an embodiment of the utility model;

[0013] Figure 2 FIG. 2 is a schematic view of the top structure of the piston with the locking structure according to an embodiment of the utility model;

[0014] Figure 3 FIG. 3 is a schematic view of the A-A cross section structure of the piston with the locking structure according to an embodiment of the utility model;

[0015] Figure 4 FIG. 4 is a schematic view of the B-B cross section structure of the piston with the locking structure according to an embodiment of the utility model;

[0016] The main element symbol is explained as follows:

[0017] Mounting plate 1, Adjustable mounting cavity 2, Base plate 3, First piston 4, Through hole 5, Positioning steel ball 6, Second piston 7, Spring 8, Steel ball pressing inclined surface 9, Arc groove 10, Third piston 11, Assembly groove 12, Limiting groove 13, Guide mounting plate 14, Inner groove 15, First sealing ring 16, Second sealing ring 17, Third sealing ring 18, Fourth sealing ring 19, Fifth sealing ring 20, Sixth sealing ring 21, First air passage 22, Second air passage 23, Third air passage 24. Detailed Implementation

[0018] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figures 1-4 As shown, this utility model discloses a piston with a locking structure. An adjusting mounting cavity 2 is provided within a mounting plate 1. A base plate 3 is mounted on the bottom of the adjusting mounting cavity 2. A first piston 4 is fixedly mounted on the surface of the base plate 3. Several evenly arranged through holes 5 are provided around the top perimeter of the first piston 4. Positioning steel balls 6 are slidably installed within the through holes 5. A second piston 7 is slidably installed inside the first piston 4. A spring 8 is mounted on the lower side of the second piston 7, with its free end mounted on the base plate 3. A steel ball pressing slope is provided on the upper side of the second piston 7. 9. The second piston 7 has an arc groove 10 on the upper side of the steel ball pressing slope 9 that matches the shape of the positioning steel ball 6. The third piston 11 is slidably installed in the adjusting mounting cavity 2. The inner side of the third piston 11 has an assembly groove 12 that matches the shape of the first piston 4. The third piston 11 is slidably set on the outer side of the first piston 4 through the assembly groove 12. The assembly groove 12 has a limiting groove 13 at the positioning steel ball 6. The top of the third piston 11 passes through the mounting plate 1 and extends to its upper side. The top of the third piston 11 is also equipped with a guide mounting plate 14.

[0020] Preferably, the bottom of the second piston 7 is provided with an inner groove 15, and the top of the spring 8 is installed in the inner groove 15. This structural design facilitates the installation and use of the spring 8. In practice, other spring mounting structures for the second piston 7 can also be considered depending on the specific circumstances.

[0021] Preferably, a first sealing ring 16 is installed on the outer side of the first piston 4, a second sealing ring 17 is installed on the inner side of the first piston 4, a third sealing ring 18 is installed on the bottom of the first piston 4, a fourth sealing ring 19 is installed on the lower outer side of the second piston 7, a fifth sealing ring 20 is installed on the lower outer side of the third piston 11, and a sixth sealing ring 21 is installed on the mounting plate 1 at the penetration point of the third piston 11. This structural design improves the sealing effect during use. In practice, other sealing structure shapes for the first piston 4, the second piston 7, and the third piston 11 can also be considered depending on the specific circumstances.

[0022] Preferably, the mounting plate 1, the adjusting mounting cavity 2 and the first piston 4 are provided with a first air channel 22, the output end of the first air channel 22 is arranged at the inner side of the first piston 4, the mounting plate 1 and the adjusting mounting cavity 2 are provided with a second air channel 23, the input end of the second air channel 23 is arranged at the lower side of the second piston 7, and the mounting plate 1 and the adjusting mounting cavity 2 are further provided with a third air channel 24, the output end of the third air channel 24 is arranged at the lower side of the third piston 11. Such a structural design facilitates the use of ventilation. In fact, other structural shapes of the air channel can also be considered according to specific circumstances.

[0023] Preferably, a quick-change workbench is further mounted on the outer side of the guide mounting plate 14. Such a structural design facilitates the clamping of the workpiece outside the machine, and directly replaces the workbench on the guide mounting plate 14 when parking, thereby reducing the auxiliary waiting time of the machine tool. In fact, other structural shapes of the quick-change workbench can also be considered according to specific circumstances.

[0024] In this embodiment, when in use, after the workbench is slidably mounted on the guide mounting plate 14, ventilation is performed first, the second piston 7 is lowered, the second piston 7 is pressed downward to the spring 8 when it is lowered, the spring 8 is compressed and deformed, after the second piston 7 moves to the bottom plate 3, the positioning steel ball 6 in the through hole 5 will automatically slide into the arc groove 10, so that one side of the positioning steel ball 6 is in the arc groove 10 and the other side is in the through hole 5, then ventilation is controlled to move the third piston 11, the third piston 11 drives the guide mounting plate 14 along the first piston 4 in the adjusting mounting cavity 2, the guide mounting plate 14 drives the workbench to descend, until the third piston 11 moves to the bottom plate 3, ventilation is performed again to move the second piston 7 upward, at the same time, the spring 8 rebounds to move the second piston 7 upward, the positioning steel ball 6 is ejected from the through hole 5, the outer side of the positioning steel ball 6 is clamped into the limiting groove 13, and the steel ball on the second piston 7 presses the inclined surface 9 to press the inner side of the positioning steel ball 6, so that the positioning steel ball 6 can exert a positioning effect on the third piston 11, thereby enabling the third piston 11 to drive the guide mounting plate 14 to fix the workbench on the mounting plate 1, and wait for machining.

[0025] In the installation, the movement of the second piston 7 can be controlled through the first air channel 22 and the second air channel 23, the movement of the third piston 11 can be controlled through the third air channel 24, and the first sealing ring 16, the second sealing ring 17, the third sealing ring 18, the fourth sealing ring 19, the fifth sealing ring 20 and the sixth sealing ring 21 can ensure that the internal gas does not leak, thereby ensuring the effect of stable use.

[0026] Wherein, when the workbench on the guide mounting plate 14 needs to be replaced, first, the assembly base on the quick-change workbench is slid to the outside of the guide mounting plate 14, then the workbench on the guide mounting plate 14 is slid onto the assembly base, then the assembly base on the one side of the quick-change workbench is slid, then the assembly base on the other side of the quick-change workbench, which is provided with the workbench and the tooling jig assembled with parts on the workbench, is moved to the guide mounting plate 14, finally, the workbench is pushed to slide out of the assembly base and slide onto the guide mounting plate 14, and locking and fixing are performed by the third piston 11.

[0027] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A piston having a locking structure, characterized by: The utility model provides a kind of installation plate (1), the installation plate (1) is equipped with adjusting installation cavity (2) in, the bottom plate (3) is installed in the bottom of adjusting installation cavity (2), the surface of the bottom plate (3) is fixedly installed with first piston (4), the top circle of the first piston (4) is equipped with several evenly arranged through holes (5), the through hole (5) is slidably installed with locating steel ball (6), the inside of the first piston (4) is slidably installed with second piston (7), the lower side of the second piston (7) is installed with spring (8), the free end of the spring (8) is installed on the bottom plate (3), the upper side of the second piston (7) is equipped with steel ball pressing inclined surface (9), the second piston (7) is equipped with arc groove (10) on the upper side of steel ball pressing inclined surface (9) with the appearance of locating steel ball (6) is matched, the third piston (11) is slidably installed in adjusting installation cavity (2), the inner side of the third piston (11) is equipped with assembly groove (12) with the appearance of first piston (4) is matched, the third piston (11) is slidably arranged on the outside of the first piston (4) by assembly groove (12), the assembly groove (12) is equipped with limiting groove (13) at locating steel ball (6), the top of the third piston (11) penetrates installation plate (1) and extends to its upper side, the top of the third piston (11) is also installed with guide mounting plate (14).

2. The piston with locking structure according to claim 1, characterized in that: The bottom of the second piston (7) is equipped with inner groove (15), and the top of the spring (8) is installed in the inner groove (15).

3. The piston with locking structure according to claim 2, characterized in that: The outside of the first piston (4) is installed with first sealing ring (16), the inside of the first piston (4) is installed with second sealing ring (17), the bottom of the first piston (4) is installed with third sealing ring (18), the lower side of the outside of the second piston (7) is installed with fourth sealing ring (19), the lower side of the outside of the third piston (11) is installed with fifth sealing ring (20), and the sixth sealing ring (21) is installed in the installation plate (1) at the penetration of the third piston (11).

4. The piston with locking structure according to claim 3, characterized in that: The installation plate (1), adjusting installation cavity (2) and first piston (4) are provided with first air duct (22), and the output end of the first air duct (22) is arranged on the inside of the first piston (4) side; The installation plate (1) and adjusting installation cavity (2) are provided with second air duct (23), and the input end of the second air duct (23) is arranged on the lower side of the second piston (7); The installation plate (1) and adjusting installation cavity (2) are also provided with third air duct (24), and the output end of the third air duct (24) is arranged on the lower side of the third piston (11).

5. The piston with locking structure according to claim 4, characterized in that: The outside of the guide mounting plate (14) is also installed with quick-change workbench.

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