CN216326515U

CN216326515U - Fixed positioner for rotary fixture

Info

Publication number: CN216326515U
Application number: CN202121889674.3U
Authority: CN
Inventors: 文佳蓉; 苏奕豪; 黄蓉; 孙亚男; 梁晶晶
Original assignee: Shaanxi Aircraft Industry Co Ltd
Current assignee: Shaanxi Aircraft Industry Co Ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-04-19
Anticipated expiration: 2031-08-12

Abstract

The application provides a fixed locator for rotatory class anchor clamps, fixed locator includes locating pin, guide pin bushing, screw, spring, first cylindric lock, second cylindric lock and handle, wherein: the whole structure of the positioning pin is a step shaft; the guide sleeve is of a hollow structure and is provided with a flange plate; one end of the guide sleeve is provided with a cross notch, the cross notch is positioned on the end surface close to the handle connection, the cross notch comprises a deep notch and a shallow notch, and the deep notch and the shallow notch are mutually vertical; a spring is arranged on a small shaft sleeve of the positioning pin and penetrates through a large hole of the guide sleeve, and a first through hole of the positioning pin is fixedly combined with the first cylindrical pin and matched with a cross-shaped notch of the guide sleeve; the second through hole of the positioning pin is connected with the fixed handle through a second cylindrical pin; the screw penetrates through a step hole of a flange plate of the guide sleeve; the handle is the handle of pulling locator, utilizes locating pin, second cylindric lock to be connected with the handle.

Description

Fixed positioner for rotary fixture

Technical Field

The utility model belongs to the technical field of aviation, and relates to a fixed positioner for a rotary fixture.

Background

A large number of positioning pins are needed in lathe machining, and the workpiece machining reference is accurately matched with the positioning of the clamp, so that the position tolerance and the precision requirement of the machined part are met. In the prior art, a hand-pulling type bolt is generally adopted for positioning, and a positioning and pressing device is arranged on the basic structure of the hand-pulling type bolt according to a workpiece processing reference. The positioning device generally comprises a positioning pin, the compressing device comprises various compressing pieces, such as a nut, a set screw with a handle, a pressure plate, a hook-shaped compressing bolt and the like, and the compressing function is realized by manually rotating the nut or rotating the nut by using a tool such as a wrench and the like during compressing.

The existing localizer realizes the structurization of a locating device, can locate a special position, and still has some defects in specific use:

1. the positioning pin is used on a rotary fixture (such as a lathe fixture), and is easy to loosen and fall off along with the vibration of a lathe, so that a workpiece is easy to fly out during high-speed rotation, the positioning state needs to be checked at any time, and poor positioning fixation and low safety can be generated;

2. when the existing positioning structure is in a positioning state, tools such as a spanner and the like are needed to rotate the nut for manual adjustment, and the production efficiency is low.

Disclosure of Invention

The utility model provides a fixed positioner for a rotary fixture, which solves the problems that a common positioner is unstable, is easy to loosen, fall off or shake and throw out, has low workpiece processing safety and the like when the common positioner is used in the rotary fixture (such as a lathe fixture).

In order to solve the above technical problem, the present application provides a fixed locator for a rotary fixture, the fixed locator includes a locating pin 1, a guide sleeve 2, a screw 3, a spring 4, a first cylindrical pin 51, a second cylindrical pin 52 and a handle 6, wherein:

the integral structure of the positioning pin 1 is a step shaft, one end of the positioning pin 1 is a large shaft, the other end of the positioning pin 1 is a small shaft, and the small shaft is provided with a first through hole and a second through hole;

the guide sleeve 2 is of a hollow structure, the guide sleeve 2 is provided with a flange plate, and the flange plate is provided with at least 3 step holes for connecting all components of the combined fixed positioner; one end of the guide sleeve 2 is provided with a cross notch, the cross notch is positioned on the end surface close to the handle connection, the cross notch comprises a deep notch and a shallow notch, and the deep notch and the shallow notch are mutually vertical;

the spring 4 on the small shaft sleeve of the positioning pin 1 penetrates through the large hole of the guide sleeve 2, and the first through hole of the positioning pin 1 is fixedly combined with the first cylindrical pin 51 and matched with the cross-shaped notch of the guide sleeve 2 to adjust the working state of the fixed positioner; the second through hole of the positioning pin 1 is connected with the fixed handle 6 by a second cylindrical pin 52; a screw 3 penetrates through a step hole of a flange plate of the guide sleeve 2, and the fixed positioner is fixed on the fixture body to realize the fixing function;

the handle 6 is a handle for pulling the positioner and is connected with the handle 6 by the second cylindrical pin 52 and the positioning pin 1.

Specifically, when the first cylindrical pin 51 is located in the deep notch, the positioning pin 1 compresses the spring 4 to enter a workpiece positioning hole, so as to position the workpiece on the fixture, and the fixed positioner is in a positioning state;

when the first cylindrical pin 51 is located in the shallow notch, the positioning pin 1 exits from the station positioning hole, and the fixed positioner is in a non-positioning state.

Specifically, pulling handle 6 drives locating pin 1 compression spring 4 and withdraws from the locating hole, and after first cylindric lock 51 pulled out dark notch, handle 6 rotated 90 degrees, placed on shallow notch, made locating pin 1 keep at the non-location state, can fix a position the setting this moment.

Specifically, a large shaft of the positioning pin 1 is matched with the inner diameter of the positioning bushing for positioning, and a small shaft is used for connecting a component of a fixed positioner; the positioning pin 1 and the handle 6 form a whole, so that the handle 6 can directly drive the positioning pin 1 to move back and forth.

Specifically, the handle 6 is a knurled handle.

Specifically, the guide sleeve 2 adopts 45^#A guide sleeve made of steel.

Specifically, the positioning pin 1 is a positioning pin manufactured by CrWMn.

In summary, the present invention provides a fixed positioning device, which mainly includes a positioning pin 1, a fixed connection assembly, and a positioning state adjustment assembly. The locating pin 1 adopts the structure of step axle, distinguishes the connection position of location position and other subassemblies, and the main shaft can design the size by oneself, can be accurate with work piece processing locating hole matching, has improved the suitability and the precision of location. The fixed connection assembly is composed of 3

screws

3 and 1 handle 6, and can connect all parts of the fixed locator together, fix the fixed locator pin 1 with the fixture body, stabilize the fixed state of the locator pin, enable the fixed locator pin not to be loosened easily along with the vibration of the lathe, and guarantee the processing safety and precision tolerance requirements of workpieces. The positioning state adjusting component consists of 1

guide sleeve

2, 1

spring

4 and 2 cylindrical pins 5, the state of the positioning device is confirmed by utilizing the matching use of the deep groove opening and the shallow groove opening and the first cylindrical pin 51, the component can be switched between two states of a fixed positioner quickly, and the production efficiency is effectively improved.

Drawings

The utility model comprises 8 figures, which are described as follows:

FIG. 1 is a block diagram of the components of a stationary fixture for a rotary-type fixture as provided herein;

FIG. 2 is an isometric view of a stationary positioner for a rotary-type clamp provided herein;

FIG. 3 is a block diagram of one type of locating pin provided herein;

FIG. 4 is a block diagram of a guide sleeve provided herein;

FIG. 5 is a block diagram of one type of screw provided herein;

FIG. 6 is a block diagram of one type of spring provided herein;

FIG. 7 is a block diagram of a cylindrical pin provided herein;

FIG. 8 is a block diagram of a handle provided herein;

wherein: the clamp comprises a base plate I, a positioning bush II, a clamp body III, a positioning pin 1, a guide sleeve 2, a screw 3, a spring 4, a first cylindrical pin 51, a second cylindrical pin 52 and a handle 6.

Detailed Description

A fixed positioner of the present invention is described in detail with reference to the accompanying drawings:

in order to solve the above technical problems, the present invention (utility model) provides a positioning device for a rotary fixture (such as a lathe fixture) with high safety and good stability. As shown in fig. 1, the present application provides a stationary positioner for a rotary-type clamp comprising: 1 locating

1, 1 guide pin bushing 2, 3

screws

3, 1

spring

4, 2 cylindric locks 5, 1 handle 6. The method is realized by the following technical scheme:

1) the positioning pin 1 is used as a positioning device. The material is CrWMn which is subjected to proper heat treatment and surface treatment to achieve the hardness suitable for working. As shown in FIG. 3, the whole structure of the positioning pin 1 is a stepped shaft, and two through holes are formed on a small shaft. The large shaft is matched with the inner diameter of a positioning bush (II in figure 1) for positioning, and the small shaft is used for connecting other components of the fixed positioner. The first through hole is fixedly combined with 1 cylindrical pin 5 (hereinafter referred to as a first cylindrical pin 51) for adjusting the working state of the fixed positioner. The second through hole is connected with and fixed the handle 6 by 1 cylindrical pin 5 (hereinafter referred to as second cylindrical pin 52), and the positioning pin 1 and the handle 6 are integrated into a whole, so that the handle 6 can directly drive the positioning pin 1 to move back and forth.

2) The guide sleeve 2 is a core part of the whole product and adopts 45^#Steel, mainly comprising three structural parts, as shown in fig. 4. A first structural part: the step hole in the guide sleeve 2 is used for connecting each component of the combined fixed type positioner. A spring 4 (shown in figure 6) on a small shaft sleeve of the positioning pin 1 penetrates through a large hole of the guide sleeve 2 and is respectively arranged in 2 cylindrical pins 5, and a first through hole on the positioning pin 1 is combined with a first cylindrical pin 51 and then matched with a cross-shaped notch of the guide sleeve 2 so as to adjust the working state of the fixed positioner. A second structural part: the flange plate in the middle of the guide sleeve 2 is provided with 3 step holes. 3 stepped holes are combined with 3 screws 3 (shown in figure 5) to fix the fixed positioner on the fixture body (III in figure 1) to realize the fixing function. A third structural part: the cross notch of the guide sleeve 2 is positioned close to the end surface connected with the handle and is composed of two notches which are vertical to each other (two notches with different depths, deep for short)Notches, shallow notches). The deep groove opening and the shallow groove opening are matched with the first cylindrical pin 51 for use to confirm the state of the positioning device, when the first cylindrical pin 51 is positioned in the deep groove opening, the positioning pin 1 compresses the spring 4 to enter the workpiece positioning hole, so as to position the workpiece on the clamp, and at the moment, the fixed type positioner is in a working state, namely a positioning state; when the first cylindrical pin 51 is located in the shallow groove opening, the positioning pin 1 exits from the station positioning hole, and the fixed positioner is in an adjustable state, i.e., a non-positioning state.

3) The handle 6 is a handle for pulling the positioner, and the handle 6 is pulled by using the second cylindrical pin 52 and the positioning pin 1 to be connected with the handle 6, namely the positioning pin 1 is driven to contract the spring 4 to exit from the positioning hole. The handle 6 is constructed as shown in figure 8. After the first cylindrical pin 51 is pulled out of the deep notch, the handle 6 is rotated by 90 degrees and placed on the shallow notch, so that the positioning pin 1 is kept in a non-positioning state, and the second positioning setting can be performed at this time.

In fig. 1, i and ii are references of the fixed positioner for assisting workpiece processing, where i is a reference plate for workpiece processing and positioning, ii is a positioning bushing on the reference plate, and iii is a fixture body used with the fixed positioner in fig. 1. An isometric view of the fixed positioner is shown in fig. 2, and the first and second

cylindrical pins

51 and 52 are configured as shown in fig. 7.

The specific positioning and moving process is as follows:

1. preparation before use of the fixed positioner: the fixed locator is fixed with the supporting anchor clamps body, is connected fixed with the supporting anchor clamps body (III in figure 1) through 3 fluting cylindric head screws (screw 3) to reach the fixed of locator, can not become flexible along with the vibrations of rotatory type anchor clamps during the location, drop.

2. Adjusting the state: pulling handle 6, can driving locating pin 1 compression spring 4, returning to in the macropore of guide pin bushing 2, first cylindric lock 51 is the state of being pulled out the deep notch mouth simultaneously at the same time, and handle 6 rotates 90 degrees, can place shallow slot mouth with first cylindric lock 51, and locating pin 1 can keep staying in the macropore of guide pin bushing 2, is the adjustment state (be non-location state) this moment. And adjusting the position of the clamp, performing positioning preparation before machining, accurately matching the workpiece machining reference with the clamp positioning, and entering a positioning state.

3. Positioning state: after the positioning bushing II is accurately found on the reference plate I positioned by workpiece machining, the first cylindrical pin 51 is pulled out of the shallow groove opening and placed into the deep groove opening by pulling again and rotating the handle 6 by 90 degrees, the fixed positioner is in a positioning state at the moment, and the workpiece machining and manufacturing can be started.

Fixed locator mainly includes locating pin 1, fixed connection subassembly and regulation positioning state subassembly, and fixed connection subassembly comprises 3

screws

3, 1 handle 6, and regulation positioning state subassembly comprises 1

guide pin bushing

2, 1

spring

4, 2 cylindric lock 5. The positioning pin 1 realizes the positioning function of the fixed positioner. The fixed connecting assembly realizes the connection of all components in the positioner and the fixation of the fixture body. The fixed positioner can be switched between a positioning state and a non-positioning state by adjusting the positioning state component. The state of the fixed positioner has two states: adjusting state and positioning state. When the workpiece is machined, the positioning hole does not need to be adjusted continuously to finish the workpiece machining, and the fixed positioner only needs to be switched between two states to finish the adjustment of the positioning hole, so that the production efficiency is improved.

In view of the above, the present invention relates to a fixed positioner for a rotary-type fixture (e.g., a lathe fixture), as shown in fig. 1. The fixed locator mainly comprises a locating pin 1, a fixed connecting assembly and a locating state adjusting assembly, wherein the fixed connecting assembly consists of 3

screws

3 and 1 handle 6, and the locating state adjusting assembly consists of 1

guide sleeve

2, 1

spring

4 and 2 cylindrical pins 5 (comprising a first cylindrical pin 51 and a second cylindrical pin 52). Pulling the handle 6 to drive the positioning pin 1 to compress the spring 4, placing the first cylindrical pin 51 at the shallow slot opening, and enabling the fixed positioner to be in an adjusting state; pulling rotation handle 6, driving locating pin 1 and inserting location bush II, deep notch is placed to first cylindric lock 51, and fixed locator is in the location state. The utility model overcomes the problems of unfixed positioning pin, inaccurate positioning, lower safety, low manual positioning production efficiency and the like of the traditional positioning device.

Claims

1. A fixed locator for a rotary type clamp, the fixed locator comprising a locating pin (1), a guide bush (2), a screw (3), a spring (4), a first cylindrical pin (51), a second cylindrical pin (52) and a handle (6), wherein:

the integral structure of the positioning pin (1) is a step shaft, one end of the positioning pin (1) is a large shaft, the other end of the positioning pin (1) is a small shaft, and the small shaft is provided with a first through hole and a second through hole;

the guide sleeve (2) is of a hollow structure, the guide sleeve (2) is provided with a flange plate, and the flange plate is provided with at least 3 step holes for connecting all components of the combined fixed positioner; one end of the guide sleeve (2) is provided with a cross notch, the cross notch is positioned on the end surface close to the handle connection, the cross notch comprises a deep notch and a shallow notch, and the deep notch and the shallow notch are mutually vertical;

a spring (4) is arranged on a small shaft sleeve of the positioning pin (1) and penetrates through a large hole of the guide sleeve (2), and a first through hole of the positioning pin (1) is fixedly combined with a first cylindrical pin (51) and matched with a cross-shaped notch of the guide sleeve (2) for adjusting the working state of the fixed positioner; a second cylindrical pin (52) for a second through hole of the positioning pin (1)

A fixed handle (6) is connected; a screw (3) penetrates through a step hole of a flange plate of the guide sleeve (2) to fix the fixed positioner on the fixture body, so that the fixing function is realized;

the handle (6) is a handle for pulling the positioner and is connected with the handle (6) by the second cylindrical pin (52) and the positioning pin (1).

2. The fixed locator of claim 1,

when the first cylindrical pin (51) is positioned in the deep notch, the positioning pin (1) compresses the spring (4) to enter the workpiece positioning hole, so that the workpiece is positioned on the clamp, and the fixed positioner is in a positioning state;

when the first cylindrical pin (51) is located in the shallow notch, the positioning pin (1) exits from the station positioning hole, and the fixed positioner is in a non-positioning state.

3. The fixed locator of claim 1, wherein pulling the handle (6) drives the locating pin (1) to compress the spring (4) and withdraw from the locating hole, and after the first cylindrical pin (51) is pulled out of the deep notch, the handle (6) is rotated 90 degrees and placed on the shallow notch to keep the locating pin (1) in a non-locating state, and then the locating setting can be carried out.

4. The fixed locator of claim 1, wherein the big shaft of the locating pin (1) is matched with the inner diameter of the locating bush for locating, and the small shaft is used for connecting the components of the fixed locator; the positioning pin (1) and the handle (6) form a whole, so that the handle (6) can directly drive the positioning pin (1) to move back and forth.

5. The fixed locator of claim 1, wherein the handle (6) is a knurled handle.

6. The stationary positioner according to claim 1, characterised in that the guide sleeve (2) is a guide sleeve made of 45 steel.

7. The fixed locator according to claim 1, characterized in that the locating pin (1) is a locating pin made of chromium tungsten manganese.