CN215881161U - Multi-station turntable air supply mechanism, clamping driving device and machine tool - Google Patents

Abstract

The application discloses multistation revolving stage air feed mechanism, centre gripping drive arrangement and lathe. The method comprises the following steps: the rotary table is provided with a rotary body which can rotate relative to the rotary table; the air source is used for supplying air to each station; the rotary joint is arranged at the central position of the rotary body; the rotary body is arranged on the rotary table, a plurality of work stations for clamping workpieces are arranged on the rotary body, the rotary table is provided with the air source, the rotary joint is arranged at the center of the rotary body, the air source is connected with the air inlet of the rotary joint through the first air supply pipe, the air outlet of the rotary joint is connected with the second air supply pipe, an air guide pipeline is formed, the rotary body and the rotary joint rotate synchronously, normal rotation of the rotary body can be guaranteed, and the air guide pipeline cannot be damaged; a mechanical electromagnetic valve is arranged on the second air supply pipe and is arranged corresponding to each station, so that the on-off of the air passage of the corresponding station is controlled.

Description

Multi-station turntable air supply mechanism, clamping driving device and machine tool

Technical Field

The disclosure generally relates to the technical field of grinding machine machining, in particular to a multi-station turntable air supply mechanism, a clamping driving device and a machine tool.

Background

The traditional workpiece machining adopts a five-axis standard tool grinding machine for machining, has low productivity and relatively troublesome automation realization, and is not suitable for batch production and high-quality stability requirements at the present stage.

At present, along with the realization of integration of a multi-station rotary machine tool structure and a grinding machine process, for the multi-station machine tool, a workpiece clamping mechanism is installed on a rotary body of a rotary table, an air supply system supplies air for a corresponding cutter beating assembly, the workpiece clamping mechanism is pushed to be opened by the cutter beating assembly to clamp a workpiece, the rotary body needs to ascend after the workpiece is clamped, rotates to reach a processing station, then the rotary body descends, the processing assembly of the processing station processes the workpiece, in the process that the rotary body moves to the processing station, a leakage-free quick connector connected with the air supply system can move along with the movement of the rotary body, and the opening and closing of a total air path are controlled by the leakage-free quick connector. Therefore, improvement of the existing air supply mechanism is urgently needed.

Disclosure of Invention

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a multi-station turntable air supply mechanism, a clamping driving device and a machine tool, which reduce contamination, have a smooth air path, avoid blockage, are low in cost and are easy to implement.

In a first aspect, the present application provides a multistation revolving stage air feed mechanism, includes:

the rotary table is provided with a rotary body which can rotate relative to the rotary table; a plurality of stations for clamping workpieces are arranged on the rotary body;

the air source is used for supplying air to each station;

the rotary joint is arranged at the central position of the rotary body; the air inlet of the rotary joint is connected with the air source through a first air supply pipe; the rotary joint is provided with a plurality of air outlets, and each air outlet is connected with a second air supply pipe for supplying air to the station; a mechanical electromagnetic valve is arranged on the second air supply pipe; the mechanical electromagnetic valve is arranged at the bottom of the rotary body and corresponds to each station.

According to the technical scheme provided by the embodiment of the application, a control cylinder is arranged on the rotary table corresponding to each mechanical electromagnetic valve;

the end part of the output end of the control cylinder is connected with a control switch of the mechanical electromagnetic valve through an insulating piece; the control cylinder drives the insulating part to move to change the on-off state of the control switch so as to control the on-off of the mechanical electromagnetic valve and further control the on-off of the air path on the second air supply pipe.

In a second aspect, the present application provides a clamping driving device for a multi-station turntable air supply mechanism, including:

the fixture mechanism is arranged on the rotary body and corresponds to each station; the clamp mechanism is provided with a hollow rotating shaft;

the screwdriver rod is arranged in the rotating shaft in a sliding mode and is concentric with the rotating shaft; the cutter bar is provided with an exposed end exposed out of the clamp mechanism;

and the unclamping driving assembly is arranged on the clamp mechanism and used for providing instant axial thrust for the unclamping rod so that a chuck of the clamp mechanism clamps the workpiece.

According to the technical scheme provided by the embodiment of the application, the unclamping driving assembly comprises:

the unclamping support is arranged on the side wall of the clamp mechanism;

the knife forging swing rod is hinged with the knife forging support through a hinge pin;

the tool striking cylinder is arranged at the top of the clamp mechanism; an air inlet of the unclamping cylinder is communicated with the second air supply pipe; an output shaft of the unclamping cylinder is hinged with one end of the unclamping oscillating bar; the other end of the cutter beating swing rod is adjacent to the exposed end of the cutter beating rod;

the unclamping cylinder drives the unclamping swing rod to swing around the hinge pin, so that the unclamping swing rod drives the unclamping rod to move until the unclamping rod opens a chuck of the clamp assembly.

According to the technical scheme provided by the embodiment of the application, a pull rod is arranged between the screwdriver rod and the chuck; a travel sleeve is arranged outside the pull rod; one end of the pull rod can be abutted against the end part of the rotating shaft, and the other end of the pull rod is locked with the end part of the chuck;

the end part of the pull rod close to the rotating shaft and the end part of the travel sleeve close to the rotating shaft are both provided with a limiting edge;

the pull rod is sleeved with a rectangular spiral spring, and the rectangular spiral spring is located between the limiting edge of the pull rod and the limiting edge of the travel sleeve.

In a third aspect, the present application provides a machine tool comprising: the clamping driving device comprises a machine tool body and the clamping driving device which is installed on the machine tool body.

In conclusion, the technical scheme specifically discloses a specific structure of a multi-station air supply mechanism. The rotary body capable of rotating relative to the rotary table is arranged on the rotary table, a plurality of stations are arranged on the rotary body and used for clamping workpieces, an air source is arranged on the rotary table and used for providing an air source for each station, a rotary joint is arranged at the central position of the rotary body and used as a transfer piece in an air path, the air source is connected with an air inlet of the rotary joint through a first air supply pipe, the rotary joint is provided with air outlets corresponding to the stations, each air outlet is connected with a second air supply pipe, a complete air guide pipeline of the air source is formed through the first air supply pipe, the rotary joint and the second air supply pipes, and the rotary joint can synchronously rotate when the rotary body rotates, so that the rotary body can normally rotate and cannot damage the air guide pipeline; furthermore, a mechanical electromagnetic valve is arranged on the second air supply pipe and corresponds to each station, so that the on-off of the air path of the corresponding station can be controlled.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a multi-station air supply mechanism.

Fig. 2 is a schematic structural diagram of a multi-station air supply mechanism.

Fig. 3 is a schematic sectional view of the clamping driving device.

Fig. 4 is a schematic structural view of a portion a in fig. 3.

Fig. 5 is a schematic structural diagram of the unclamping drive assembly.

Fig. 6 is a schematic structural diagram of the unclamping drive assembly.

Reference numbers in the figures: 1. a turntable; 2. a rotating body; 3. a rotary joint; 4. a first gas supply pipe; 5. a second gas supply pipe; 6. a mechanical solenoid valve; 7. controlling the cylinder; 8. a rotating shaft; 9. punching a cutter rod; 10. a chuck; 11. a knife forging support; 12. a knife swinging rod; 13. a hinge pin; 14. a knife beating cylinder; 15. a pull rod; 16. a travel sleeve; 17. a rectangular coil spring.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

Please refer to fig. 1, which is a schematic structural diagram of a first embodiment of a multi-station turntable air supply mechanism provided in the present application, including:

a rotary table 1, on which a rotary body 2 capable of rotating relative to the rotary table 1 is arranged; a plurality of stations for clamping workpieces are arranged on the rotary body 2;

the air source is used for supplying air to each station;

a rotary joint 3 installed at a central position of the swivel body 2; the air inlet of the rotary joint 3 is connected with the air source through a first air supply pipe 4; the rotary joint 3 is provided with a plurality of air outlets, and each air outlet is connected with a second air supply pipe 5 for supplying air to the station; the second air supply pipe 5 is provided with a mechanical electromagnetic valve 6; the mechanical electromagnetic valve 6 is arranged at the bottom of the rotary body 2 and corresponds to each station.

In the present embodiment, as shown in fig. 1, a revolving platform 1, which is a basic bearing part of the multi-station revolving platform air supply mechanism, is provided on the revolving platform 1, and is capable of rotating relative to the revolving platform 1 for driving a plurality of stations provided thereon to rotate; here, the number of stations is at least three for holding the workpiece;

the air source is arranged on the rotary table 1 and used for supplying air to each station;

the rotary joint 3 is arranged at the center of the rotary body 2 and is used as a transfer piece of the gas path; the rotary joint 3 is provided with an air inlet used for being connected with a first air supply pipe 3, the first air supply pipe 3 is connected with an air source and used for transmitting air of the air source, the rotary joint 3 is provided with a plurality of air outlets used for being connected with a second air supply pipe 5, and the second air supply pipe 5 is used for supplying air to a station;

furthermore, the rotary joint 3 is provided with an air guide part and a connecting part sleeved outside the air guide part, and the air guide part is used for being connected with the first air supply pipe 4 and the second air supply pipe 5, so that an air source has a complete air guide pipeline; the connecting part is connected with the central position of the rotary body 2, so that the connecting part can synchronously rotate when the rotary body 2 rotates, the rotary body 2 can normally rotate, the air guide pipeline cannot be damaged, and the air channel is ensured to be smooth;

and the mechanical electromagnetic valve 6 is arranged on the second air supply pipe 5, is arranged at the bottom of the rotary body 2, corresponds to each station and is used for controlling the on-off of the air path of the corresponding station.

As shown in fig. 2, the control cylinder 7 is arranged on the rotary table 1 and is arranged corresponding to each mechanical solenoid valve, and the end part of the output end of the control cylinder 7 is connected with the control switch of the mechanical solenoid valve 6 through an insulating member for controlling the opening and closing state of the mechanical solenoid valve 6; specifically, the control cylinder 7 drives the insulating part to move to change the on-off state of the control switch so as to control the on-off of the mechanical electromagnetic valve 6, further control the on-off of the air path on the second air supply pipe 5 and conveniently control the on-off of the air path.

The second air supply pipe 5 is divided into two sections by taking the mechanical electromagnetic valve 6 as a center, wherein one section is connected with one air outlet of the rotary joint 3 and the corresponding air inlet of the mechanical electromagnetic valve 6; the other section is connected with an air outlet of the mechanical electromagnetic valve 6 and an element to be supplied with air on the station.

In the embodiment, the control cylinder 7 is arranged on the rotary table 1, the mechanical electromagnetic valve 6 is arranged on the bottom surface of the rotary body 2, and the control cylinder 7 is skillfully combined with the mechanical electromagnetic valve 6, so that the plurality of rotating mechanical electromagnetic valves 6 can be controlled to be opened or closed by the control cylinder 7 at different positions; above-mentioned ingenious design, compare in other modes among the prior art, practiced thrift design cost.

Example two

A clamping driving device of a multi-station turntable air supply mechanism based on the first embodiment comprises:

the clamp mechanism is arranged on the rotary body 2 and corresponds to each station; the clamp mechanism is provided with a hollow rotating shaft 8;

the screwdriver rod 9 is arranged in the rotating shaft 2 in a sliding mode, and the screwdriver rod 9 and the rotating shaft 2 are arranged concentrically; the cutter bar 2 is provided with an exposed end exposed out of the clamp mechanism;

and the unclamping driving assembly is arranged on the clamp mechanism and used for providing instant axial thrust for the unclamping rod 9 so that a chuck 10 of the clamp mechanism clamps the workpiece.

In the present embodiment, as shown in fig. 3, a clamping mechanism is disposed on the rotating body 2 and corresponding to each of the stations for clamping the workpiece; furthermore, the clamp mechanism is provided with a hollow rotating shaft 8 which can form a hollow accommodating cavity;

the tool driving rod 9 is arranged in the accommodating cavity of the rotating shaft 8 in a sliding mode, is arranged concentrically with the rotating shaft 8 and is used for pushing the clamping head 10 to be opened so as to clamp a workpiece;

and the unclamping driving assembly is arranged on the clamp mechanism and is provided with a pushing piece which can be contacted with the exposed end of the unclamping rod 9 and is used for providing instantaneous axial thrust for the unclamping rod 9 so that the chuck 10 is opened to clamp the workpiece.

Further, as shown in fig. 5 and 6, the unclamping drive assembly includes:

the unclamping support 11 is arranged on the side wall of the clamp mechanism and used for supporting an unclamping swing rod 12;

the unclamping swing rod 12 is hinged with the unclamping support 11 through a hinge pin 13, and one end of the unclamping swing rod is arranged adjacent to the exposed end of the unclamping rod 9 and used for pushing the unclamping rod 5 to move;

the tool beating cylinder 14 is arranged at the top of the clamp mechanism, and an output shaft of the tool beating cylinder 14 is hinged with one end, far away from the tool beating rod 9, of the tool beating swing rod 12 and used for providing driving force for the tool beating swing rod 12; an air inlet of the unclamping cylinder 14 is communicated with the second air supply pipe 5 and is used for acquiring air provided by an air source;

the unclamping cylinder 14 drives the unclamping swing rod 12 to swing around the hinge pin 13, so that the unclamping swing rod 12 has instantaneous axial thrust to push the unclamping rod 9 to move along the axis of the unclamping rod 9, and the unclamping rod 9 can push the chuck 10 to open to clamp a workpiece.

Further, as shown in fig. 4, a pull rod 15 is disposed between the unclamping rod 9 and the collet 10 as a medium for transmitting the pushing force, one end of the pull rod 15 can abut against the end of the rotating shaft 8, and the other end thereof is locked with the end of the collet 10 to push the collet 10 to open; the stroke sleeve 16 is arranged outside the pull rod 15 and plays a role in guiding the movement of the pull rod 15;

the limiting edges are arranged at the end part of the pull rod 15 close to the rotating shaft 8 and the end part of the stroke sleeve 16 close to the rotating shaft 8, and play a limiting role on the rectangular spiral spring 17; the rectangular spiral spring 17 is sleeved on the pull rod 15, is positioned between the limiting edge of the pull rod 15 and the limiting edge of the travel sleeve 16, and is used for providing acting force for restoring the natural state for the pull rod 15;

when the knife striking rod 9 is not in contact with the pull rod 15, the pull rod 15 and the rectangular spiral spring 17 are both in a natural state; when clamping a workpiece, the pulling rod 15 is pushed by the clamping rod 9 to move along the stroke sleeve 16 until the chuck 10 is opened, and at the moment, the rectangular spiral spring 17 is compressed; when the workpiece is clamped, the unclamping rod 9 is separated from the pull rod 15, and the pull rod 15 is restored to a natural state under the elastic action of the rectangular spiral spring 17.

EXAMPLE III

A machine tool, comprising: the clamping driving device comprises a machine tool body and a clamping driving device which is arranged on the machine tool body and is used for realizing a good air supply effect of the workpiece clamping device of the machine tool.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (6)

1. The utility model provides a multistation revolving stage air feed mechanism which characterized in that includes:

the rotary table (1) is provided with a rotary body (2) which can rotate relative to the rotary table (1); a plurality of stations for clamping workpieces are arranged on the rotary body (2);

the air source is used for supplying air to each station;

a rotary joint (3) mounted at the center of the swivel body (2); the air inlet of the rotary joint (3) is connected with the air source through a first air supply pipe (4); the rotary joint (3) is provided with a plurality of air outlets, and each air outlet is connected with a second air supply pipe (5) for supplying air to the station; a mechanical electromagnetic valve (6) is arranged on the second air supply pipe (5); the mechanical electromagnetic valve (6) is arranged at the bottom of the rotary body (2) and corresponds to each station.

2. A multi-station air supply mechanism according to claim 1, characterized in that a control cylinder (7) is arranged on the rotary table (1) corresponding to each mechanical solenoid valve (6);

the end part of the output end of the control cylinder (7) is connected with a control switch of the mechanical electromagnetic valve (6) through an insulating part; the control cylinder (7) drives the insulating part to move to change the on-off state of the control switch so as to control the on-off of the mechanical electromagnetic valve (6) and further control the on-off of the air path on the second air supply pipe (5).

3. The clamping driving device of the multi-station turntable air supply mechanism is characterized by comprising the following components in parts by weight:

the clamp mechanism is arranged on the rotary body (2) and corresponds to each station; the clamp mechanism is provided with a hollow rotating shaft (8);

the screwdriver rod (9) is arranged in the rotating shaft (2) in a sliding mode, and the screwdriver rod (9) and the rotating shaft (2) are arranged concentrically; the cutter bar (2) is provided with an exposed end exposed out of the clamp mechanism;

and the unclamping driving assembly is arranged on the clamp mechanism and used for providing instant axial thrust for the unclamping rod (9), so that a chuck (10) of the clamp mechanism clamps the workpiece.

4. A clamp drive as claimed in claim 3, wherein the unclamping drive assembly comprises:

the unclamping support (11) is arranged on the side wall of the clamp mechanism;

the unclamping swing rod (12) is hinged with the unclamping support (11) through a hinge pin (13);

the unclamping cylinder (14) is arranged at the top of the clamp mechanism; an air inlet of the unclamping cylinder (14) is communicated with the second air supply pipe (5); an output shaft of the unclamping cylinder (14) is hinged with one end of the unclamping swing rod (12); the other end of the knife striking swing rod (12) is arranged adjacent to the exposed end of the knife striking rod (9);

the unclamping cylinder (14) drives the unclamping swing rod (12) to swing around the hinge pin (13), so that the unclamping swing rod (12) drives the unclamping rod (9) to move until the unclamping rod (9) opens a chuck (10) of the clamp assembly.

5. A clamping drive as claimed in claim 4, characterised in that a tie rod (15) is provided between the striking rod (9) and the clamping head (10); a travel sleeve (16) is arranged outside the pull rod (15); one end of the pull rod (15) can be abutted against the end part of the rotating shaft (8), and the other end of the pull rod is locked with the end part of the chuck (10);

the end part of the pull rod (15) close to the rotating shaft (8) and the end part of the travel sleeve (16) close to the rotating shaft (8) are both provided with a limiting edge;

the pull rod (15) is sleeved with a rectangular spiral spring (17), and the rectangular spiral spring (17) is located between the limiting edge of the pull rod (15) and the limiting edge of the travel sleeve (16).

6. A machine tool, comprising: a machine tool body and a clamp drive according to any one of claims 3 to 5 mounted on said machine tool body.

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