CN112065812A

CN112065812A - Guide sleeve with auxiliary positioning structure

Info

Publication number: CN112065812A
Application number: CN202010914874.3A
Authority: CN
Inventors: 谭宇岐; 铁钟; 龙吟
Original assignee: Individual
Current assignee: CHANGDE JIAHONG MACHINERY CO LTD
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2020-12-11
Anticipated expiration: 2040-09-03
Also published as: CN112065812B

Abstract

The invention discloses a guide sleeve with an auxiliary positioning structure, which comprises a guide sleeve body, a connecting shaft, a gear, a second rack and a thread, wherein the connecting shaft is installed on the inner side of the guide sleeve body, the gear is fixed on the outer side of the connecting shaft, sliding grooves are formed in the front and the back of the inner side of the guide sleeve body, a sliding block is clamped on the inner side of each sliding groove, a pressing rod is arranged on the inner side of the upper part of the guide sleeve body, a clamping block is fixed in the middle of the outer side of the pressing rod, a first spring is welded below the clamping block, a guide rod is installed on the inner side of the guide sleeve body. This uide bushing with assistance-localization real-time structure installs the second spring, when dismantling uide bushing body and guide bar, the accessible hand is pressed the depression bar, makes the telescopic link of depression bar below and spacing platform to coordinate the contractibility and the resilience of second spring and the draw-in groove separation of dead lever top simultaneously, and this structure has been convenient for the dismantlement and the installation of guide bar and uide bushing body, has increased the convenience.

Description

Guide sleeve with auxiliary positioning structure

Technical Field

The invention relates to the technical field of guide sleeves, in particular to a guide sleeve with an auxiliary positioning structure.

Background

The guide sleeve is suitable for a plurality of mechanical parts, belongs to a precision machined part, most of the guide sleeves adopt a special steel pipe for grinding after round steel turning, and the grinding is completed under the condition of large batch, generally speaking, the guide sleeve has no inner step and outer step, except for finer external circle size, the guide sleeve is very simple in processing technology, is convenient for people to manufacture, is longest used for the guide sleeve in an automobile and an air cylinder, and mainly has the functions of jacking and supporting the guide sleeve in the automobile and effectively avoiding the problem of friction between parts and metal through the automobile guide sleeve, the guide sleeve in the air cylinder is connected and installed with a guide rod through threads, and has the main function of driving the guide rod to linearly lift through the air tightness of the guide sleeve inside the air cylinder when air inlet holes on two sides of the air cylinder start to work, and effectively plays the roles of clamping and punching a workpiece in the lifting process of the guide rod, the linear reciprocating motion of the cylinder is realized, so that convenience is brought to people;

however, the existing guide sleeve still has defects, such as:

1. the conventional guide sleeve is in threaded connection with a guide rod, so that the external thread of the guide sleeve is easy to damage in the long-term use process of high-pressure gas, and when the external thread of the guide sleeve is damaged, the guide rod can be separated from the guide sleeve, so that the normal use of the guide sleeve is influenced;

2. the existing connecting and mounting position of the guide sleeve and the guide rod has poor sealing performance, so that the phenomenon of air leakage is caused when the guide sleeve and the guide rod are subjected to high-pressure air inlet through an air cylinder, and the guide rod is unstable due to air leakage in the lifting process, so that inconvenience is brought to people;

therefore, the guide sleeve with the auxiliary positioning structure can well solve the problems.

Disclosure of Invention

The invention aims to provide a guide sleeve with an auxiliary positioning structure, and aims to solve the problems that the existing guide sleeve in the market is in threaded connection with a guide rod, the external thread of the guide sleeve is easy to damage in the long-term use process of high-pressure air, the guide rod can be separated from the guide sleeve after the external thread of the guide sleeve is damaged, and the connection and installation position of the existing guide sleeve and the guide rod has poor sealing performance, so that the guide sleeve and the guide rod generate air leakage when air is sucked through a cylinder under high pressure, and the guide rod is unstable due to air leakage in the lifting process.

In order to achieve the purpose, the invention provides the following technical scheme: a guide sleeve with an auxiliary positioning structure comprises a guide sleeve body, a connecting shaft, a gear, a second rack and threads, wherein the connecting shaft is installed on the inner side of the guide sleeve body, the gear is fixed on the outer side of the connecting shaft, a fixed rod is welded on the outer side of the connecting shaft, clamping blocks are movably hinged to the inner end of the fixed rod, sliding grooves are formed in the front and the back of the inner side of the guide sleeve body, sliding blocks are clamped on the inner sides of the sliding grooves, a rotary disc is fixed on the outer side of the upper portion of the sliding blocks, a boss is connected to the upper portion of the rotary disc through a screw, a pressing rod is arranged on the inner side of the upper portion of the guide sleeve body, a clamping block is fixed in the middle of the outer side of the pressing rod, a first spring is welded below the clamping block, connecting frames are welded on the left, and a second rack is arranged outside the guide rod.

Preferably, the horizontal central line of uide bushing body and the horizontal central line of guide bar coincide each other, and the uide bushing body is mosaic structure with the guide bar right-hand member outside to the mutual parallel and level in guide bar tip tangent plane and uide bushing body right side, the inside laminating in guide bar left side has the sealing washer moreover.

Preferably, the connecting axle evenly distributed is inside uide bushing body front side, and the connecting axle is the one-to-one correspondence with the dead lever to the grip block of dead lever tip is the arc form, and the draw-in groove has all been seted up in the dead lever top outside moreover, and draw-in groove and depression bar constitute the block structure simultaneously.

Preferably, the sliding structure is formed by the sliding grooves and the sliding blocks, the sliding grooves are annular, the sliding grooves and the sliding blocks are in one-to-one correspondence, and the sliding blocks are symmetrically provided with 2 sliding blocks relative to the left vertical center line of the turntable.

Preferably, a first rack is arranged on the inner side of the rotary disc, the first rack is in a ring shape, and the inner side of the first rack is meshed with the outer side of the gear.

Preferably, the fixed block is welded on the outer side of the pressure lever and is circular, and the vertical central line of the pressure lever and the vertical central line of the fixed rod are overlapped.

Preferably, the bottom welding of fixture block has the telescopic link, and the telescopic link bottom mounting has spacing platform to spacing platform is mosaic structure with the draw-in groove.

Preferably, the buckles are welded on the inner sides of the second springs, the buckles and the clamping blocks form a clamping structure, the second springs are symmetrically arranged about the vertical center line of the pressing rod, and the buckles and the connecting frames are in one-to-one correspondence.

Compared with the prior art, the invention has the beneficial effects that: the guide sleeve with the auxiliary positioning structure;

(1) the clamping device is provided with a disc, a gear and a clamping block, the disc can be effectively rotated by manually buckling a boss above the turntable, the gear and a connecting shaft can be effectively driven to rotate when the disc rotates, so that a fixed rod is driven to rotate when the connecting shaft rotates, the clamping block at the end part of the fixed rod can effectively match a guide rod with a second rack for clamping and fixing, the inner sides of the clamping blocks are all arranged into strips and are just meshed with the second rack on the outer side of the right end of the guide rod, the guide rod can be effectively fastened on the inner side of a guide sleeve body through the clamping block, the auxiliary positioning effect is increased, and the phenomenon that the guide sleeve body is separated from the guide rod after the external thread of the guide sleeve body is damaged when a cylinder is in ventilation work is avoided;

(2) the structure effectively fixes the fixed rod, and can also enable the clamping block and the buckle to be matched with the first spring for clamping and fixing when the pressing rod moves downwards, so that the problem that the guide sleeve body is separated from the guide rod due to the fact that a gear below the guide sleeve body is reset due to inertia rotation when the boss is loosened by hands is avoided, the practicability is improved, and meanwhile the problem provided in the background technology is solved;

(3) be provided with second spring and telescopic link, when dismantling uide bushing body and guide bar, the depression bar is pressed to the accessible hand, makes the telescopic link of depression bar below and spacing platform coordinate the shrink of second spring and the draw-in groove separation of resilience and dead lever top simultaneously, then the manual rotation guide bar just can be very convenient dismantles it get off, and this structure has been convenient for the dismantlement and the installation of guide bar and uide bushing body, has increased the convenience.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is a schematic left sectional view of the present invention;

FIG. 3 is a schematic view of the mounting structure of the pressure bar and the guide sleeve body according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 3 according to the present invention;

FIG. 6 is a schematic view of the installation structure of the slider and the guide sleeve body according to the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at C according to the present invention.

In the figure: 1. a guide sleeve body; 2. a connecting shaft; 3. a gear; 4. a clamping block; 5. fixing the rod; 501. a card slot; 6. a chute; 7. a slider; 8. a turntable; 801. a first rack; 9. a boss; 10. a pressure lever; 11. a fixed block; 12. a clamping block; 13. a telescopic rod; 1301. a limiting table; 14. a first spring; 15. a connecting frame; 16. a second spring; 17. buckling; 18. a guide bar; 1801. a seal ring; 19. a second rack; 20. and (4) threading.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a guide sleeve with an auxiliary positioning structure comprises a guide sleeve body 1, a connecting shaft 2, a gear 3, a clamping block 4, a fixed rod 5, a clamping groove 501, a sliding groove 6, a sliding block 7, a rotary disc 8, a first rack 801, a boss 9, a pressure rod 10, a fixed block 11, a clamping block 12, a telescopic rod 13, a limiting table 1301, a first spring 14, a connecting frame 15, a second spring 16, a buckle 17, a guide rod 18, a sealing ring 1801, a second rack 19 and a thread 20, wherein the connecting shaft 2 is installed on the inner side of the guide sleeve body 1, the gear 3 is fixed on the outer side of the connecting shaft 2, the fixed rod 5 is welded on the outer side of the connecting shaft 2, the clamping block 4 is movably hinged to the inner end of the fixed rod 5, the sliding grooves 6 are respectively formed in the front and back of the inner side of the guide sleeve body 1, the sliding blocks 7 are clamped on the, the guide sleeve comprises a guide sleeve body 1, a compression rod 10 is arranged on the inner side above the guide sleeve body 1, a clamping block 12 is fixed in the middle of the outer side of the compression rod 10, a first spring 14 is welded below the clamping block 12, connecting frames 15 are welded on the left side and the right side of the inner portion above the guide sleeve body 1, a second spring 16 is fixed on the inner side of each connecting frame 15, a guide rod 18 is installed on the inner side of the guide sleeve body 1, threads 20 are arranged on the outer side of the right end of the guide rod 18, and a second rack 19 is further arranged on.

The horizontal central line of uide bushing body 1 and the horizontal central line of guide bar 18 coincide each other, and uide bushing body 1 and the 18 right-hand members of guide bar outside are mosaic structure, and 18 tip tangent planes of guide bar and the mutual parallel and level in uide bushing body 1 right side, and the inside laminating in guide bar 18 left side has sealing washer 1801, the design of above-mentioned structure, make can effectually pass through the junction seal installation with guide bar 18 and uide bushing body 1 through sealing washer 1801, the problem of gas leakage has been leaded to appearing in guide bar 18 and uide bushing body 1 to the during operation of having avoided the cylinder to ventilate, thereby sealed effect has been increased.

Connecting axle 2 evenly distributed is inside 1 front side of uide bushing body, and connecting axle 2 is the one-to-one relation with dead lever 5, and the grip block 4 of dead lever 5 tip is the arc form, and draw-in groove 501 has all been seted up in the dead lever 5 top outside, draw-in groove 501 constitutes block structure with depression bar 10 simultaneously, the design of above-mentioned structure, it is fixed to make grip block 4 can effectually carry out the block with guide bar 18, draw-in groove 501 is effectual fixed with the spacing platform 1301 block of telescopic link 13 bottom at the effect of this, steadiness and practicality have been increased.

Spout 6 and slider 7 constitute sliding construction, and spout 6 is the annular form to spout 6 is the one-to-one relation with slider 7, and slider 7 is provided with 2 about 8 left vertical center lines symmetries of carousel in addition, the design of above-mentioned structure for slider 7 effectively slides in 1 inboard of uide bushing body through spout 6, and can also drive carousel 8 when slider 7 moves about in spout 6 and rotate, has increased the transmission effect.

The inside of the turntable 8 is provided with a first rack 801, the first rack 801 is in a ring shape, the inside of the first rack 801 is meshed with the outside of the gear 3, and due to the design of the structure, when the turntable 8 rotates, the first rack 801 inside the turntable can effectively drive the gear 3 to rotate, so that convenience is improved.

The outside welding of depression bar 10 has fixed block 11, and fixed block 11 is circular form to the vertical central line of depression bar 10 and the mutual coincidence of the vertical central line of dead lever 5, the design of above-mentioned structure makes through the depression bar 10 move down effectual shrink that makes buckle 17 cooperate second spring 16 and kick-back hold power and fixture block 12 block fixed, has increased stability.

The bottom welding of fixture block 12 has telescopic link 13, and telescopic link 13 bottom mounting has spacing platform 1301 to spacing platform 1301 and draw-in groove 501 are mosaic structure, and the design of above-mentioned structure, spacing platform 1301 through telescopic link 13 below can be effectual fixed with the draw-in groove 501 block of dead lever 5 top, avoided when the boss 9 is loosened to the hand gear 3 rotatory reset and leaded to guide bar 18 and grip block 4 separation, increased holistic stability and practicality.

Buckle 17 has all been welded to the second spring 16 inboard, and buckle 17 constitutes the block structure with fixture block 12, and second spring 16 is provided with 2 about depression bar 10's vertical center line symmetry, and buckle 17 is the one-to-one relation with connection frame 15, the design of above-mentioned structure, make effectual resilience power of holding through first spring 14 makes the fixture block 12 in the depression bar 10 outside separate with buckle 17 rapidly after pressing down with depression bar 10, then just can follow the inboard dismantlement of uide bushing body to guide bar 18, this structure has been convenient for

uide bushing body

1 and 18 dismantlements and the installation of guide bar, holistic convenience and practicality have been increased.

The working principle is as follows: when the guide sleeve with the auxiliary positioning structure is used, firstly, as shown in fig. 1-2 and 6-7, as the guide sleeve body 1 and the guide rod 18 in the existing cylinder are connected and fixed through the threads 20, the guide sleeve is easy to generate the damage of the external threads 20 of the guide sleeve body 1 in the long-term use process of high-pressure gas, and the normal use of the guide sleeve body 1 is seriously influenced, in order to solve the problems, the operation and the design are as follows, firstly, the guide rod 18 is connected and fixed with the guide sleeve body 1 through the threads 20, then, the lug boss 9 above the turntable 8 is buckled by hand, the sliding block 7 below the turntable 8 is matched with the sliding groove 6 on the inner side of the guide sleeve body 1 to rotate through the movable lug boss 9, so that the first rack 801 on the inner side of the turntable 8 drives the gear 3 to rotate, the connecting shaft 2 is driven to rotate through the rotation, the clamping block 4 at the end part of the inner side of the fixed rod 5 clamps the guide sleeve body 1 through the rotation of the fixed rod 5, the inner sides of the clamping blocks 4 are all arranged into strips and are just meshed with the second rack 19 on the outer side of the right end of the guide rod 18, the guide rod 18 can be effectively fastened on the inner side of the guide sleeve body 1 through the clamping blocks 4, the auxiliary positioning effect is increased, the phenomenon that the outer thread 20 of the guide sleeve body 1 is separated from the guide rod 18 after being damaged during the ventilation work of an air cylinder is avoided, and the problem brought out above is solved;

as shown in fig. 2-5, in order to avoid the gear 3 from being reset due to inertial rotation when the boss 9 is released by hand, the inner side of the upper part of the guide sleeve body 1 is provided with the press rod 10, after the clamping block 4 clamps the guide rod 18, the press rod 10 is pressed by hand to move downwards, the press rod 10 moves downwards to drive the fixture block 12 to move downwards, the fixture block 12 moves downwards to effectively enable the buckle 17 to be matched with the contraction and resilience energy storage force of the second spring 16 to be clamped and fixed with the fixture block 12, and when the press rod 10 presses downwards, the limit table 1301 at the bottom end of the press rod 10 can be clamped and fixed at the inner side of the clamping groove 501 above the fixing rod 5, so that the problem that the gear 3 is reset due to inertial rotation when the boss 9 is released by hand is effectively avoided, the overall practicability and convenience are increased, when the guide rod 18 and the guide sleeve body 1 are separated, the, similarly, the press rod 10 is pressed by hand, the telescopic rod 13 at the bottom end of the clamping block 12 is matched with the first spring 14 to shrink downwards by pressing the press rod 10, and the first spring 14 has the functions of shrinking and resilience storage, so that the clamping block 12 at the outer side of the press rod 10 can be rapidly separated from the buckle 17 by the resilience storage of the first spring 14 after the press rod 10 is pressed downwards, and then the guide rod 18 can be detached from the inner side of the guide sleeve body 1, the structure is convenient for detaching and installing the guide sleeve body 1 and the guide rod 18, the structure is simple and easy to operate, the overall convenience and practicability are improved, and in addition, in order to avoid the phenomenon of air leakage when the guide sleeve body 1 is fixedly connected with the guide rod 18, a sealing ring 1801 is arranged at the connection part of the guide rod 18 and the right side of the guide sleeve body 1, the sealing ring 1801 is an existing product, and the connection part of the guide rod 18 and the guide sleeve body 1 can be effectively, the practicability and convenience are increased, so that the service life of the whole guide sleeve body 1 is prolonged, and a series of work is completed, and the content which is not described in detail in the specification belongs to the prior art which is known by a person skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a uide bushing with assistance-localization real-time structure, includes uide bushing body (1), connecting axle (2), gear (3), second rack (19) and screw thread (20), its characterized in that: the guide sleeve is characterized in that a connecting shaft (2) is installed on the inner side of a guide sleeve body (1), a gear (3) is fixed on the outer side of the connecting shaft (2), a fixing rod (5) is welded on the outer side of the connecting shaft (2), clamping blocks (4) are movably hinged to the inner end of the fixing rod (5), sliding grooves (6) are formed in the front and the back of the inner side of the guide sleeve body (1), a sliding block (7) is clamped on the inner side of each sliding groove (6), a rotary disc (8) is fixed on the outer side of the upper portion of each sliding block (7), bosses (9) are connected to the upper portion of each rotary disc (8) through screws, a pressing rod (10) is arranged on the inner side of the upper portion of the guide sleeve body (1), a clamping block (12) is fixed in the middle of the outer side of each pressing rod (10), a first spring (14) is welded on the lower, a guide rod (18) is installed on the inner side of the guide sleeve body (1), threads (20) are arranged on the outer side of the right end of the guide rod (18), and a second rack (19) is further arranged on the outer side of the guide rod (18).

2. The guide sleeve with the auxiliary positioning structure as claimed in claim 1, wherein: the horizontal central line of uide bushing body (1) and the horizontal central line of guide bar (18) coincide each other, and uide bushing body (1) and guide bar (18) right-hand member outside are mosaic structure to guide bar (18) tip tangent plane and the mutual parallel and level in uide bushing body (1) right side, and inside laminating in guide bar (18) left side has sealing washer (1801) moreover.

3. The guide sleeve with the auxiliary positioning structure as claimed in claim 1, wherein: connecting axle (2) evenly distributed is inside uide bushing body (1) front side, and connecting axle (2) is the one-to-one relation with dead lever (5) to grip block (4) of dead lever (5) tip are the arc form, and draw-in groove (501) have all been seted up in dead lever (5) top outside moreover, and draw-in groove (501) constitute the block structure with depression bar (10) simultaneously.

4. The guide sleeve with the auxiliary positioning structure as claimed in claim 1, wherein: spout (6) and slider (7) constitute sliding structure, and spout (6) are the annular form to spout (6) and slider (7) are the one-to-one correspondence, and slider (7) are provided with 2 about the left vertical center line symmetry of carousel (8) moreover.

5. The guide sleeve with the auxiliary positioning structure as claimed in claim 1, wherein: the inner side of the rotary disc (8) is provided with a first rack (801), the first rack (801) is annular, and the inner side of the first rack (801) is meshed with the outer side of the gear (3).

6. The guide sleeve with the auxiliary positioning structure as claimed in claim 1, wherein: the outer side of the pressing rod (10) is welded with a fixing block (11), the fixing block (11) is circular, and the vertical center line of the pressing rod (10) and the vertical center line of the fixing rod (5) are overlapped.

7. A guide sleeve with auxiliary positioning structure as claimed in claim 3, wherein: the bottom end of the clamping block (12) is welded with a telescopic rod (13), the bottom end of the telescopic rod (13) is fixedly provided with a limiting table (1301), and the limiting table (1301) and the clamping groove (501) are of an embedded structure.

8. The guide sleeve with the auxiliary positioning structure as claimed in claim 1, wherein: buckle (17) have all been welded to second spring (16) inboard, and buckle (17) and fixture block (12) constitute the block structure to second spring (16) are provided with 2 about the vertical central line symmetry of depression bar (10), and buckle (17) are the one-to-one with linking frame (15) moreover.