CN213274709U

CN213274709U - Quick chuck

Info

Publication number: CN213274709U
Application number: CN202022658536.6U
Authority: CN
Inventors: 徐磊; 方留柱; 李景山
Original assignee: Changzhou Jinchuang Windshield System Co ltd
Current assignee: Changzhou Jinchuang Windshield System Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-05-25
Anticipated expiration: 2030-11-17

Abstract

The utility model relates to a quick chuck for press from both sides tight windscreen connection frame portion during the gas tightness test to rail transit vehicle windscreen, a serial communication port, include: the pressing block component, the pressing component, the handle component and the connecting pin are arranged on the handle component; the handle assembly and the pressing block assembly are connected into a whole through the connecting pin, the handle assembly drives the pressing block assembly to do reciprocating linear motion and rotate, and the pressing block assembly clamps the windshield connecting frame at any angle in the circumferential direction; the pressing assembly and the pressing block assembly are screwed and sleeved outside the pressing block assembly.

Description

Quick chuck

Technical Field

The utility model belongs to the technical field of the rail transit vehicle, concretely relates to be used for quick chuck of tight usefulness of rail transit vehicle windshield gas tightness test clamp.

Background

In the prior art, the air tightness test is required after the rail transit vehicle windshield is manufactured so as to prevent air leakage when the rail transit vehicle windshield is installed in a vehicleNoise or vibration reduces the experience of the ride vehicle customer. Generally, the two ends of the windshield are respectively connected with the channels at the two sides through connecting parts, the channels at the two sides are filled with gas with certain pressure, and the air tightness of the windshield is detected through timing pressure maintaining. In order to realize the quick connection between the windshield and the channels at two sides, the traditional pressing type quick chuck is generally adopted in the invention application documentCN106078566AThe structure form disclosed in the publication is to tightly connect the outermost connecting frame part and the outer channel connecting part of the windshield into a whole, but the clamping direction of the quick chuck is single, and the clamping direction cannot be adjusted according to the actual structure condition and position of the outermost connecting frame part and the outer channel connecting part of the windshield; meanwhile, the clamping mode belongs to point clamping, and the connecting frame part at the outermost end of the windshield for testing is easily damaged due to concentrated clamping force.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick chuck to solve the single unable adjustment clamping position of traditional push type quick chuck centre gripping direction that the gas tightness of the test vehicle windshield that exists adopted among the prior art, and the centre gripping mode belongs to the technical problem that the point centre gripping leads to damaging the connection frame portion of windshield outermost end easily.

In order to solve the problem, the utility model relates to a quick chuck for press from both sides tight windscreen connection frame portion during the gas tightness test to rail transit vehicle windscreen, include: the pressing block component, the pressing component, the handle component and the connecting pin are arranged on the handle component; the handle assembly and the pressing block assembly are connected into a whole through the connecting pin, the handle assembly drives the pressing block assembly to do reciprocating linear motion and rotate, and the pressing block assembly clamps the windshield connecting frame at any angle in the circumferential direction; the pressing assembly and the pressing block assembly are screwed and sleeved outside the pressing block assembly.

Further, the briquetting subassembly includes: the device comprises a pressure head, a pressure block, a first screw, a second screw and a connecting rod; the pressure head and the pressing block are connected into a whole through the second screw, the first screw connects the pressure head and the first end of the connecting rod into a whole, the end face of the second screw is flush with the end face of the pressing block, the connecting rod is clamped with the handle assembly, and the second end of the connecting rod is connected with the handle assembly into a whole through the connecting pin.

Further, the compression assembly includes: the pull rod seat, the pressing seat and the elastic piece are arranged on the base; the pressing seat is positioned on the outer side of the pull rod seat and is sleeved with a gap in which the pull rod seat can slide, the pressing seat and the pressing block assembly are screwed into a whole through threads, and the pressing seat is rotated to adjust the attaching tightness of the pressing block assembly; the elastic piece is located between the pull rod seat and the pressing block assembly.

Furthermore, the pull rod seat is also provided with a limiting screw, and the limiting screw limits the amount of motion of the pressing block component in the reciprocating linear motion in the pressing component.

Further, the handle assembly includes: a cam and a handle; the cam and the handle are integrated into a whole in a screwing mode, the cam is in a concave shape, the end portion of the cam is connected with the pressing block assembly into a whole through the connecting pin, and the peripheral wall of the cam is abutted to the pressing assembly.

Furthermore, the quick chuck is in a loose state, and an included angle formed between the central axis of the handle assembly and the central axis of the pressing assembly ranges from 90 degrees to 180 degrees; the quick chuck is in a clamping state, and the central axis of the handle assembly and the central axis of the pressing assembly are approximately in a straight line.

The utility model has the advantages that: the pressing block assembly end of the quick chuck of the structure is provided with the pressing block with the large plane, so that when the quick chuck is used for clamping the connecting frame part and the outer side channel connecting part, the clamped surface of the connecting frame part is effectively enlarged, and the clamping damage to the connecting frame part can not be caused. But the briquetting subassembly structure of circumferencial rotation can make the briquetting subassembly carry out the centre gripping to connecting frame portion in circumferencial direction arbitrary angle position, and the centre gripping degree of freedom improves and its centre gripping scope is wideer, and the structure that is in the clamping state when both axes of manual operation handle subassembly and hold down the subassembly are the collineation simultaneously need not to consider handle occupation space, makes whole quick chuck more be suitable for little space scope or position compact space's position to the clamp system of connecting frame portion. The unique adjustable structure that compresses tightly seat and briquetting subassembly screw thread spiral closed can adjust the clamping-force of quick chuck in real time, makes the clamping-force of quick chuck satisfy the requirement of gas tightness test to connecting frame portion centre gripping all the time.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a three-dimensional schematic diagram of the overall structure of the rapid chuck of the present invention;

FIG. 2 is a front view of the overall structure of the quick chuck of the present invention;

FIG. 3 is a sectional view of the whole structure of the quick chuck of the present invention;

FIG. 4 is an exploded view of the quick chuck of the present invention;

fig. 5 is a schematic view of the first state of the quick chuck of the present invention;

fig. 6 is a schematic view of the second state of the quick chuck according to the present invention.

In the figure:

a pressing block assembly 100, a pressing head 110, a pressing block 120, a first screw 130, a second screw 140, a connecting rod 150,

the pressing assembly 200, the pull rod seat 210, the pressing seat 220, the elastic member 230, the handle assembly 300,

cam 310, handle 320, connecting pin 400.

Detailed Description

Figures 1 through 6, discussed below, and the various embodiments used to describe the principles of the present invention in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the invention. Those skilled in the art will understand that the principles of the present invention may be implemented in any suitable type of quick-action chuck. The terminology used to describe various embodiments is exemplary. It should be understood that these are provided solely to aid in the understanding of the present specification, and their use and definition do not limit the scope of the present invention in any way. The use of the terms first, second, etc. to distinguish between objects having the same set of terms is not intended to represent a temporal order in any way, unless otherwise specifically stated. A group is defined as a non-empty group containing at least one element.

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It should be understood that the exemplary embodiments described herein should be considered in descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each exemplary embodiment should generally be considered as available for similar features or aspects in other exemplary embodiments.

Example 1

Fig. 1 to 6 show the utility model discloses a quick chuck structure sketch map, a quick chuck for press from both sides tight windscreen connection frame portion during the gas tightness test to rail transit vehicle windscreen, a serial communication port, include: a press block assembly 100, a hold down assembly 200, a handle assembly 300, and a connecting pin 400; the handle assembly 300 and the press block assembly 100 are connected into a whole through the connecting pin 400, the handle assembly 300 drives the press block assembly 100 to do reciprocating linear motion and rotation, and the press block assembly 100 clamps the windshield connecting frame at any angle in the circumferential direction; the compressing assembly 200 and the pressing block assembly 100 are screwed and sleeved outside the pressing block assembly 100. The structure that the handle assembly 300 drives the press block assembly 100 to rotate can clamp the windshield connecting frame part at any position of the circumference, compared with the existing point-to-point fixed position type clamping mechanism, the clamping range is wider, and the selection of the clamped position tends to be free.

The briquette assembly 100 includes: the pressing head 110, the pressing block 120, the first screw 130, the second screw 140 and the connecting rod 150; the pressing head 110 and the pressing block 120 are connected into a whole through the second screw 140, the first screw 130 connects the pressing head 110 and the first end of the connecting rod 150 into a whole, the end surface of the second screw 140 is flush with the end surface of the pressing block 120, the connecting rod 150 is clamped with the handle assembly 300, and the connecting pin 400 connects the second end of the connecting rod 150 and the handle assembly 300 into a whole. Briquetting 120 surface is level and smooth, realizes the plane centre gripping of connecting frame portion to the windscreen, and the fine problem of the damage of the windscreen connecting frame portion that appears of having solved the quick chuck point centre gripping of current traditional push type appears to can be right after the centre gripping many times briquetting 120 replaces, can remain the position precision of centre gripping all the time, can not because of briquetting 120's wearing and tearing cause the whole of briquetting subassembly 100 to scrap in the quick chuck.

The compression assembly 200 includes: the pull rod seat 210, the pressing seat 220 and the elastic element 230; the compressing base 220 is positioned outside the pull rod base 210 and is sleeved with the pull rod base 210 in a slidable clearance, the compressing base 220 and the pressing block assembly 100 are screwed into a whole, and the compressing base 220 is rotated to adjust the fit tightness of the pressing block assembly 100; the elastic member 230 is located between the pull rod seat 210 and the pressing block assembly 100. When the pressing block assembly 100 performs a clamping linear motion under the driving of the handle assembly 300, the connecting rod 150 in the pressing block assembly 100 compresses the elastic member 230, so that the elastic member 230 pushes the pull rod seat 210 to slide towards the pressing seat 220, and after the pull rod seat 210 is tightly attached to the pressing seat 220, the elastic member 230 continuously compresses for storing energy, so that the handle assembly 300 is tightly attached to the pressing assembly 200 to clamp the windshield connecting frame.

The screwing structure of the pressing component 200 and the pressing block component 100 can more effectively adjust the clamping force of the quick chuck, the quick chuck drives the pressing block component 100 to do reciprocating linear motion through the handle component 300 to clamp the windshield connecting frame portion, the clamping force depends on the contact gap between the handle component 300 and the pressing component 200, the larger the gap between the handle component 300 and the pressing component 200 is, the smaller the gap between the pressing component and the pressing component is, the larger the clamping force is, and the smaller the gap between the pressing component and the pressing component is, the larger the clamping force is. The pressing assembly 200 and the thread screwing structure on the pressing block assembly 100 can more conveniently adjust the gap between the pressing assembly 200 and the handle assembly 300, so that the clamping force of the quick chuck always meets the requirement of an air tightness test on clamping the windshield connecting frame.

The pull rod seat 210 is further installed with a limit screw that limits the amount of movement of the pressing block assembly 100 in the reciprocating linear motion within the pressing block assembly 200. The movement range of the pressing block assembly 100 is limited by arranging the limiting screw on the pull rod seat 210, so that the windshield connecting frame portions with different sizes can be clamped, the quick clamping head is not limited to only clamping the windshield connecting frame portion with one thickness any more, and the range of the clamping size range is enlarged.

The handle assembly 300 includes: a cam 310 and a handle 320; the cam 310 and the handle 320 are screwed into a whole, the cam 310 is in a concave shape, the end part of the cam 310 is connected with the pressing block assembly 100 into a whole through the connecting pin 400, and the peripheral wall of the cam 310 is abutted against the pressing assembly 200. The cam 310 is a concave shape, and a distance difference is formed between the central axis of the connecting hole of the connecting pin 400 and the two side edge parts, and the cam 310 of the handle assembly 300 can compress and relax the compressing assembly 200 through the distance difference, so that the pressing assembly 100 can clamp and relax the windshield connecting frame part. When the handle assembly 300 of the quick chuck rotates towards the direction r1 or r3, and the side plane of the outer peripheral wall of the cam 310 of the handle assembly 300 is attached to the pressing seat 220 of the pressing assembly 200, the distance from the axis of the connecting pin 400 to the outer end surface of the pressing seat 220 is B, and at the moment, the pressing block assembly 100 in the quick chuck is in a loose state relative to the windshield connecting frame; when the handle assembly 300 of the quick chuck rotates towards the direction r2 and the top end surface of the peripheral wall of the cam 310 of the handle assembly 300 is attached to the pressing seat 220 of the pressing assembly 200, the distance from the axis of the connecting pin 400 to the outer end surface of the pressing seat 220 is A, and at the moment, the pressing block assembly 100 in the quick chuck is in a clamping state on the windshield connecting frame part; wherein distance a is always greater than distance B.

The quick chuck is in a loose state, and an included angle formed between the central axis of the handle assembly 300 and the central axis of the pressing assembly 200 ranges from 90 degrees to 180 degrees; the quick chuck is in a clamping state, the central axis of the handle assembly 300 and the central axis of the pressing assembly 200 are approximately in a straight line, and the arrangement of the mechanism does not need to consider the occupied space of the handle, so that the whole quick chuck is more suitable for clamping the connecting frame part in a small space range or a position space compact position. The pressing block assembly 100 is further driven to rotate in the pressing assembly 200 by rotating the handle assembly 300, the end portion 110 of the pressing block assembly 100 can be clamped at any position of the rotating circumference of the pressing block assembly, the clamping range of the fixed-point positioning type quick chuck is wider, and meanwhile, the handle assembly 300 can be driven to move towards or away from the pressing assembly 200 by the aid of a rotatable position-selecting structure according to different actual use working conditions, so that the windshield connecting frame portion and the test platform are tightly attached.

The handle assembly 300 rotates around the central axis of the connecting pin 400 towards the direction r1 or r3, the cam 310 of the handle assembly 300 pulls the connecting rod 150 of the pressing block assembly 100 to compress the elastic piece 230 between the pressing assembly 200 and the connecting rod 150, and the pressing block assembly 100 moves towards the direction X1, so that the pressing head 110 of the pressing block assembly 100 drives the pressing block 120 to shorten the distance between the pressing block 120 and the pull rod seat 210 in the pressing assembly 200, and the connecting frame part at the outermost end of the windshield is tightly attached to the test platform to block air flow.

The handle assembly 300 rotates around the central axis of the connecting pin 400 in the direction of r2, the cam 310 of the handle assembly 300 pushes the link 150 of the pressing block assembly 100 to release the compression of the elastic member 230 between the pressing assembly 200 and the link 150, and the pressing block assembly 100 moves in the direction of X2, so that the pressing head 110 of the pressing block assembly 100 drives the pressing block 120 to expand the distance from the pull rod seat 210 in the pressing assembly 200, so that the connecting frame portion at the outermost end of the windshield is separated from the testing platform.

In addition to the above embodiments, the present embodiment is based on the above preferred embodiments of the present invention, and the above descriptions are provided to enable workers to make various changes and modifications without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A quick chuck for clamping a windshield connecting frame portion during an air tightness test of a rail transit vehicle windshield, comprising: the pressing block assembly (100), the pressing assembly (200), the handle assembly (300) and the connecting pin (400); the handle assembly (300) and the press block assembly (100) are connected into a whole through the connecting pin (400), the handle assembly (300) drives the press block assembly (100) to do reciprocating linear motion and rotate, and the press block assembly (100) clamps the windshield connecting frame at any angle in the circumferential direction; the pressing assembly (200) and the pressing block assembly (100) are screwed and sleeved outside the pressing block assembly (100).

2. The quick clamp according to claim 1, characterized in that said compact assembly (100) comprises: the pressing head (110), the pressing block (120), the first screw (130), the second screw (140) and the connecting rod (150); the pressure head (110) and the pressing block (120) are connected into a whole through the second screw (140), the first screw (130) connects the pressure head (110) and the first end of the connecting rod (150) into a whole, the end face of the second screw (140) is flush with the end face of the pressing block (120), the connecting rod (150) is clamped with the handle assembly (300), and the second end of the connecting rod (150) is connected with the handle assembly (300) into a whole through the connecting pin (400).

3. The quick clamp according to claim 1, wherein said compression assembly (200) comprises: the pull rod seat (210), the pressing seat (220) and the elastic piece (230); the pressing seat (220) is positioned on the outer side of the pull rod seat (210) and is sleeved with the pull rod seat (210) in a slidable gap, the pressing seat (220) and the pressing block assembly (100) are screwed into a whole through threads, and the pressing seat (220) is rotated to adjust the attaching tightness of the pressing block assembly (100); the elastic piece (230) is positioned between the pull rod seat (210) and the pressing block assembly (100).

4. The quick chuck according to claim 3, wherein the pull rod seat (210) is further mounted with a limit screw that limits the amount of reciprocating linear motion of the press block assembly (100) within the hold down assembly (200).

5. The quick chuck according to claim 1, wherein the handle assembly (300) comprises: a cam (310) and a handle (320); the cam (310) and the handle (320) are screwed into a whole, the cam (310) is in a concave shape, the end part of the cam (310) is connected with the pressing block assembly (100) into a whole through the connecting pin (400), and the peripheral wall of the cam (310) is abutted to the pressing assembly (200).

6. The quick chuck according to claim 1, wherein the quick chuck is in a relaxed state, and the central axis of the handle assembly (300) and the central axis of the compression assembly (200) form an included angle in the range of 90 ° to 180 °; the quick chuck is in a clamping state, and the central axis of the handle assembly (300) and the central axis of the pressing assembly (200) are approximately in a straight line.