CN212003962U

CN212003962U - Guide assembly

Info

Publication number: CN212003962U
Application number: CN201922451511.6U
Authority: CN
Inventors: 张远亮
Original assignee: Dongguan Chuangyu Mould Accessories Co ltd
Current assignee: Dongguan Chuangyu Mould Accessories Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-24
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to the technical field of guiding devices, in particular to a guiding assembly, which comprises a guide pillar and a guide sleeve, wherein both ends of the guide pillar are respectively provided with a first limiting part and a second limiting part, the guide sleeve is positioned between the first limiting part and the second limiting part, the first limiting part and the second limiting part are respectively provided with a first buffer part and a second buffer part, the guide sleeve is coated with a wear-resistant layer, the guide sleeve is provided with a plurality of through holes, the through holes are filled with an outer graphite column and an inner graphite column, a holding space is arranged between the outer graphite column and the inner graphite column, springs for resisting the outer graphite column and the inner graphite column are arranged in the holding space, the first buffer part and the second buffer part both comprise, outer buffer layer and middle buffer layer, middle buffer layer all is equipped with a plurality of buffering posts including buffering the main part, and interior buffer layer all is equipped with the dashpot with outer buffer layer, forms the air damping chamber between the inner wall of dashpot and the buffering post. The utility model discloses a removal precision is high, possesses the function of self-lubricating, and wear resistance is good, long service life.

Description

Guide assembly

Technical Field

The utility model belongs to the technical field of guider technique and specifically relates to indicate a direction subassembly.

Background

In the mechanical field, a guide pillar and a guide sleeve are common mechanical accessories, the guide pillar is generally fixedly arranged on a machine body, the guide sleeve is sleeved on the guide pillar and moves up and down along the guide pillar, and a moving part is connected to the outer part of the guide sleeve; but the guide pin bushing often bumps with the organism at the removal in-process, causes guide pin bushing or organism to damage easily, and the position precision that the guide pin bushing removed is not high, and life is shorter, needs frequent maintenance or change guide pin bushing, and wear resistance is relatively poor, and lubricating property is not good. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a remove precision height, long service life's self-lubricating guide assembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a guide assembly comprises a cylindrical guide pillar and a guide sleeve sleeved outside the guide pillar, wherein the guide sleeve is connected with the guide pillar in a sliding manner, a first limiting part and a second limiting part are arranged at two ends of the guide pillar respectively, the guide sleeve is positioned between the first limiting part and the second limiting part, a first buffering part and a second buffering part are arranged on the first limiting part and the second limiting part respectively and used for abutting against two ends of the guide sleeve respectively, a wear-resistant layer is coated on the inner wall of the guide sleeve, a plurality of through holes are formed in the guide sleeve, an outer graphite column and an inner graphite column are filled in the through holes, an accommodating space is arranged between the outer graphite column and the inner graphite column, a spring is arranged in the accommodating space, one end of the spring abuts against the outer graphite column, the other end of the spring abuts against the inner graphite column, and the first buffering part and the second buffering part both comprise an inner buffer layer, A middle buffer layer for conflicting the outer buffer layer of the one end of guide pin bushing and setting up between interior buffer layer and outer buffer layer, middle buffer layer is including buffering the main part, the both sides of buffering the main part all are provided with a plurality of buffering posts, interior buffer layer and outer buffer layer all are provided with and are used for holding the dashpot of establishing the buffering post, form the air damping chamber between the inner wall of dashpot and the buffering post.

Furthermore, the first limiting part and the second limiting part are detachably connected with the guide pillar through screws.

Furthermore, all be provided with the viscose layer between interior buffer layer and the middle buffer layer, between middle buffer layer and the outer buffer layer.

Further, the structure of the first buffer part is the same as that of the second buffer part, the structure of the first limiting part is the same as that of the second limiting part, the first buffer part is annular, the first limiting part is cylindrical, the guide sleeve is cylindrical, the diameter of the first limiting part is larger than that of the first buffer part, and the outer diameter of the first buffer part is larger than that of the guide sleeve.

Further, the bottom surface of the first locating part and the top surface of the second locating part are respectively provided with a first mounting groove and a second mounting groove, and the first buffer part and the second buffer part are respectively mounted in the first mounting groove and the second mounting groove.

Furthermore, the inner graphite column is connected with the spring through a wear-resistant seat, one end, far away from the spring, of the wear-resistant seat is provided with a positioning hole, and one end of the inner graphite column is inserted into the positioning hole.

Further, the wear-resistant layer is a high-chromium alloy layer.

The utility model has the advantages that: when the guide sleeve is actually used, the guide sleeve and the guide pillar slide up and down relatively, the guide sleeve moves between the first limiting piece and the second limiting piece, the first limiting piece and the second limiting piece play a limiting role in the displacement stroke of the guide sleeve, and when the top end of the guide sleeve abuts against the first buffer piece, the guide sleeve is proved to move to the upper limit; when the bottom end of the guide sleeve butts against the second buffer piece, the guide sleeve is proved to move to the lower limit, and therefore the position precision of the guide sleeve movement is guaranteed. Wherein, interior buffer layer in first bolster and the second bolster, middle buffer layer and outer buffer layer constitute "hamburg" structure, the compliance of first bolster and second bolster has been improved, when first bolster or second bolster of guide pin bushing conflict, the outer buffer layer of guide pin bushing extrusion, make the buffering post deformation of middle buffer layer and extrude the air in the air damping intracavity, under atmospheric pressure's effect, buffering post reconversion, play fine cushioning effect to the guide pin bushing, avoided the guide pin bushing to collide with first locating part and second locating part, play the effect of protection to the guide pin bushing, the life of guide pin bushing has been prolonged. In addition, scribble the one deck wearing layer through the inner wall at the guide pin bushing, make the wear resistance of guide pin bushing good, and through be filled with outer graphite post and interior graphite post in the through-hole, adopt graphite to increase self-lubricating property, then locate fixed position with outer graphite post rigidity card, spring in the accommodation space provides a ejecting power to interior graphite post and outer graphite post, when interior graphite post or/and outer graphite post wearing and tearing, can realize ejecting interior graphite post and outer graphite post's function, so that lubricate guide pillar and guide pin bushing.

Drawings

Fig. 1 is a schematic view of the exploded structure of the present invention.

Fig. 2 is a cross-sectional view of the guide sleeve of the present invention.

Fig. 3 is a partial cross-sectional view of the first or second buffer of the present invention.

Description of reference numerals:

1. a guide post; 2. a guide sleeve; 21. a through hole; 22. a wear layer; 3. a first limit piece; 4. a second limiting member; 5. a first buffer member; 51. an inner buffer layer; 52. an outer buffer layer; 53. an intermediate buffer layer; 54. a buffer body; 55. a buffer column; 56. an air damper chamber; 57. an adhesive layer; 6. a second buffer member; 7. an outer graphite column; 8. an inner graphite column; 9. a spring; 91. a wear resistant seat; 92. a wear-resistant block; 93. rotating the head; 94. a circular arc surface; 10. and (4) screws.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 3, the present invention provides a guiding assembly, which comprises a cylindrical guide post 1, a guide sleeve 2 sleeved outside the guide post 1, wherein the guide sleeve 2 is slidably connected to the guide post 1, a first limiting member 3 and a second limiting member 4 are respectively disposed at two ends of the guide post 1, the guide sleeve 2 is located between the first limiting member 3 and the second limiting member 4, the first limiting member 3 and the second limiting member 4 are respectively provided with a first buffering member 5 and a second buffering member 6, the first buffering member 5 and the second buffering member 6 are respectively used for abutting against two ends of the guide sleeve 2, the inner wall of the guide sleeve 2 is coated with a wear-resistant layer 22, the guide sleeve 2 is provided with a plurality of through holes 21, the through holes 21 are filled with an outer graphite column 7 and an inner graphite column 8, an accommodating space is disposed between the outer graphite column 7 and the inner graphite column 8, a spring 9 is disposed in the accommodating space, outer graphite post 7 of spring 9's one end conflict, graphite post 8 in spring 9's the other end conflicts, first bolster 5 and second bolster 6 all include interior buffer layer 51, be used for conflicting outer buffer layer 52 of the one end of guide pin bushing 2 and set up middle buffer layer 53 between interior buffer layer 51 and outer buffer layer 52, middle buffer layer 53 is including buffering main part 54, the both sides of buffering main part 54 all are provided with a plurality of buffering posts 55, interior buffer layer 51 and outer buffer layer 52 all are provided with the dashpot that is used for holding and establishes buffering post 55, form air damping chamber 56 between the inner wall of dashpot and the buffering post 55.

When the device is in practical use, the guide sleeve 2 and the guide pillar 1 relatively slide up and down, the guide sleeve 2 moves between the first limiting part 3 and the second limiting part 4, the first limiting part 3 and the second limiting part 4 play a limiting role in the displacement stroke of the guide sleeve 2, and when the top end of the guide sleeve 2 abuts against the first buffer part 5, the guide sleeve 2 is proved to move to the upper limit; when the bottom end of the guide sleeve 2 abuts against the second buffer member 6, the guide sleeve 2 is proved to move to the lower limit, so that the position precision of the guide sleeve 2 is ensured. Wherein, the interior buffer layer 51 in first bolster 5 and the second bolster 6, middle buffer layer 53 and outer buffer layer 52 constitute "hamburg" structure, the compliance of first bolster 5 and second bolster 6 has been improved, when first bolster 5 of guide pin bushing 2 conflict or second bolster 6, outer buffer layer 52 is extruded to guide pin bushing 2, make buffer column 55 deformation of middle buffer layer 53 and the air in the extrusion air damping chamber 56, under atmospheric pressure's effect, buffer column 55 reconversion, play fine cushioning effect to guide pin bushing 2, avoided guide pin bushing 2 to collide with first locating part 3 and second locating part 4, play the effect of protection to guide pin bushing 2, the life of guide pin bushing 2 has been prolonged. In addition, scribble one deck wearing layer 22 through the inner wall at guide pin bushing 2, make guide pin bushing 2's wear resistance good, and through having outer graphite post 7 and interior graphite post 8 at through-hole 21 intussuseption, adopt graphite to increase self-lubricating property, then locate fixed position with outer graphite post 7 rigidity card, spring 9 through the accommodation space in provides a ejecting power to interior graphite post 8 and outer graphite post 7, when interior graphite post 8 or outer graphite post 7 wearing and tearing, can realize ejecting interior graphite post 8 and outer graphite post 7's function, so that lubricate guide pillar 1 and guide pin bushing 2.

In this embodiment, the first limiting member 3 and the second limiting member 4 are detachably connected to the guide pillar 1 through screws 10, so that the first limiting member 3, the second limiting member 4 and the guide pillar 1 can be conveniently disassembled and maintained.

In this embodiment, the adhesive layers 57 are disposed between the inner buffer layer 51 and the middle buffer layer 53 and between the middle buffer layer 53 and the outer buffer layer 52, and the adhesive layers 57 stabilize the structure of the first buffer member 5 and the second buffer member 6, thereby ensuring the buffering effect of the first buffer member 5 and the second buffer member 6.

In this embodiment, the structure of the first buffer member 5 is the same as that of the second buffer member 6, the structure of the first limiting member 3 is the same as that of the second limiting member 4, the first buffer member 5 is annular, the first limiting member 3 is cylindrical, the guide sleeve 2 is cylindrical, the diameter of the first limiting member 3 is greater than the outer diameter of the first buffer member 5, and the outer diameter of the first buffer member 5 is greater than the outer diameter of the guide sleeve 2. The structural design ensures that the first buffer part 5 and the second buffer part 6 can respectively abut against the guide sleeve 2, and ensures that the first buffer part 5 and the second buffer part 6 can buffer the guide sleeve 2; when the two ends of the guide sleeve 2 are respectively abutted against the first buffer part 5 and the second buffer part 6, the first buffer part 5 is supported by the first limiting part 3, and the second buffer part 6 is supported by the second limiting part 4, so that the first buffer part 5 and the second buffer part 6 are prevented from being bent, and the position precision of the guide sleeve 2 is improved.

In this embodiment, the bottom surface of the first limiting member 3 and the top surface of the second limiting member 4 are respectively provided with a first mounting groove and a second mounting groove, and the first buffer member 5 and the second buffer member 6 are respectively mounted in the first mounting groove and the second mounting groove. The inner walls of the first mounting groove and the second mounting groove respectively abut against the first buffering part 5 and the second buffering part 6, so that the first buffering part 5 and the second buffering part 6 can be conveniently mounted, the first buffering part 5 and the second buffering part 6 can be positioned, and the stability of the first buffering part 5 and the second buffering part 6 is ensured.

In this embodiment, a wear-resistant block 92 is disposed at one end of the inner graphite column 8, which is far away from the spring 9, the wear-resistant block 92 is provided with a rotating head 93, and the rotating head 93 is in threaded connection with the inner graphite column 8. This structural design for interior graphite post 8 is connected for dismantling with wear-resisting piece 92, and interior graphite post 8 wearing and tearing back is convenient for change interior graphite post 8, also is convenient for change wear-resisting piece 92.

In this embodiment, the wear-resistant block 92 and the rotating head 93 are of an integral structure, so that the wear-resistant block 92 and the rotating head 93 can be stably connected, the structure is simple, and the processing and forming are convenient.

In this embodiment, an arc surface 94 is disposed at an end of the wear-resistant block 92 away from the rotating head 93, and an oxide layer is attached to the arc surface 94. Through the arc design, reduce the area of contact of wear-resisting piece 92 with guide pillar 1 of contact, improved lubricated performance, and improved the wear resistance of wear-resisting head through the oxide layer.

In this embodiment, the wear-resistant layer 22 is a high-chromium alloy layer, which improves the wear-resistant performance of the guide sleeve 2 and prolongs the service life.

In this embodiment, the inner graphite column 8 is connected to the spring 9 via the wear-resistant seat 91, a positioning hole is disposed at an end of the wear-resistant seat 91 far away from the spring 9, and one end of the inner graphite column 8 is inserted into the positioning hole. This structural design is convenient for install interior graphite post 8 on the one hand, and on the other hand fixes a position interior graphite post 8, has guaranteed interior graphite post 8's stability.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. A guide assembly, characterized by: the guide sleeve is slidably connected with the guide column, a first limiting part and a second limiting part are respectively arranged at two ends of the guide column, the guide sleeve is positioned between the first limiting part and the second limiting part, a first buffering part and a second buffering part are respectively arranged on the first limiting part and the second limiting part, the first buffering part and the second buffering part are respectively used for abutting against two ends of the guide sleeve, a wear-resistant layer is coated on the inner wall of the guide sleeve, a plurality of through holes are formed in the guide sleeve, an outer graphite column and an inner graphite column are filled in the through holes, an accommodating space is arranged between the outer graphite column and the inner graphite column, a spring is arranged in the accommodating space, one end of the spring abuts against the outer graphite column, the other end of the spring abuts against the inner graphite column, and the first buffering part and the second buffering part respectively comprise an inner buffer layer, A middle buffer layer for conflicting the outer buffer layer of the one end of guide pin bushing and setting up between interior buffer layer and outer buffer layer, middle buffer layer is including buffering the main part, the both sides of buffering the main part all are provided with a plurality of buffering posts, interior buffer layer and outer buffer layer all are provided with and are used for holding the dashpot of establishing the buffering post, form the air damping chamber between the inner wall of dashpot and the buffering post.

2. A guide assembly according to claim 1, wherein: the first limiting piece and the second limiting piece are detachably connected with the guide post through screws.

3. A guide assembly according to claim 1, wherein: viscose glue layers are arranged between the inner buffer layer and the middle buffer layer and between the middle buffer layer and the outer buffer layer.

4. A guide assembly according to claim 1, wherein: the structure of the first buffer part is the same as that of the second buffer part, the structure of the first limit part is the same as that of the second limit part, the first buffer part is in a circular ring shape, the first limit part is cylindrical, the guide sleeve is cylindrical, the diameter of the first limit part is larger than the outer diameter of the first buffer part, and the outer diameter of the first buffer part is larger than that of the guide sleeve.

5. A guide assembly according to claim 1, wherein: the bottom surface of first locating part and the top surface of second locating part are provided with first mounting groove and second mounting groove respectively, first bolster and second bolster are installed in first mounting groove and second mounting groove respectively.

6. A guide assembly according to claim 1, wherein: the inner graphite column is connected with the spring through the wear-resistant seat, one end of the wear-resistant seat, which is far away from the spring, is provided with a positioning hole, and one end of the inner graphite column is inserted into the positioning hole.

7. A guide assembly according to claim 1, wherein: the wear-resistant layer is a high-chromium alloy layer.