CN209831021U

CN209831021U - Shaft sleeve seat for lathe

Info

Publication number: CN209831021U
Application number: CN201920797100.XU
Authority: CN
Inventors: 胡圣文
Original assignee: Wuhu Furun Precision Machinery Co Ltd
Current assignee: Wuhu Furun Precision Machinery Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2019-12-24
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a shaft sleeve seat for lathe, which belongs to the field of shaft sleeve processing and comprises a shaft sleeve, an expansion sleeve and an expansion sleeve seat, wherein the shaft sleeve comprises a storage section positioned in the expansion sleeve and an extension section extending out of the expansion sleeve; the outside cover of the cover that rises is equipped with the cover seat that rises, should rise on the cover seat and be equipped with a plurality of spacing holes II with above-mentioned spacing groove one-to-one along its circumference, be equipped with the stopper in spacing hole II, and this stopper supports on the lateral wall of link, and supports on the terminal surface of axle sleeve, through set up the stopper between the cover that rises and the cover seat that rises to the realization is spacing to the axle sleeve, has avoided its axial float in the cover shrink process that rises, has guaranteed the accurate positioning of axle sleeve.

Description

Shaft sleeve seat for lathe

Technical Field

The utility model relates to a shaft sleeve processing technology field, more specifically say, relate to a shaft sleeve seat for lathe.

Background

The shaft sleeve is a cylindrical mechanical part sleeved on the rotating shaft and is a component of the sliding bearing. Among them, heavy construction machines such as excavators and bulldozers are mostly provided with earth and gravel. The mechanical equipment is provided with a plurality of connecting shafts combined by rotating shafts and shaft sleeves so as to meet the working requirements of the equipment.

At present, the shaft sleeve needs to be machined on a lathe, and the shaft sleeve is positioned through a shaft sleeve seat on the lathe and then machined. A key structure in a shaft sleeve seat on a lathe is an expansion sleeve, which belongs to the field of mechanical universal parts and is used for connecting two shafts (a driving shaft and a driven shaft) in different mechanisms to rotate together so as to transmit mechanical parts of torque. In the high-speed heavy-load power transmission, some expansion sleeves also have the functions of buffering and damping and improving the dynamic performance of a shaft system. In the process of mechanical manufacturing, workpieces with similar shapes and structures can be produced in a collinear mode, the main difference is that the inner hole diameters of the workpieces are different, and therefore when the workpieces are processed on a production line, collinear production of the workpieces can be achieved only by replacing the expansion sleeve.

In the prior art, the shaft sleeve seat cannot accurately position a product, so that the processing precision of the product is low, the expansion sleeve is unreasonable in structural design and easy to crack, and the expansion sleeve needs to be frequently replaced, so that the production cost of the product is high, and the processing efficiency is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved by the utility model

An object of the utility model is to overcome not enough among the prior art, provide a shaft sleeve seat for lathe, adopt this technical scheme through set up the stopper between the cover and the cover seat that rises to the realization is spacing to the axle sleeve, has avoided its axial float at the cover shrink process that rises, has guaranteed the accurate positioning of axle sleeve.

Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a shaft sleeve seat for lathe, including the axle sleeve, rise the cover and rise the cover seat, the axle sleeve includes the storage section that is arranged in the cover that rises and stretches out in the section that stretches out of the cover that rises, rise the cover including the location end of cover establishing axle sleeve and the link of connecting the pull rod, the external diameter of link is less than the external diameter of location end, and along the equidistant a plurality of spacing grooves that are provided with of circumference of link, the spacing groove runs through the length of link and extends to a part of location end;

the outer side sleeve of the expansion sleeve is provided with an expansion sleeve seat, a plurality of limiting holes II which correspond to the limiting grooves one to one are formed in the expansion sleeve seat along the circumferential direction of the expansion sleeve seat, limiting blocks are arranged in the limiting holes II and abut against the outer side wall of the connecting end and the end face of the shaft sleeve.

As a further improvement, be equipped with the shrink section in proper order and keep away the sky section on the lateral surface of location end and along the axle sleeve stretch out section to the direction of save section, wherein, the shrink section is for its external diameter in the direction of follow axle sleeve stretch out section to save section and pursues the structure that reduces gradually, keep away the sky section and be the unchangeable drum structure of external diameter, and keep away the external diameter of sky section and be less than the external diameter of shrink section.

And a plurality of deformation holes extending from the contraction section to a part of the clearance avoiding section are formed in the side surface of the positioning end at equal intervals along the circumferential direction of the positioning end, and one end of each deformation hole penetrates through the whole contraction section.

As a further improvement of the present invention, the other end of the deformation hole extends to the round hole on the side of the void-avoiding section.

As a further improvement, the inner wall of the opening of the expansion sleeve seat is provided with a compression section which is gradually reduced from the shaft sleeve extension section to the storage section.

As a further improvement, the front that just is located shrink section and keep away the empty section on the lateral surface of location end still is equipped with the tight section of clamp, the tight section of clamp is the unchangeable drum structure of external diameter, the external diameter that presss from both sides tight section equals the maximum external diameter of shrink section.

As a further improvement, the circumference on the inside wall of the positioning end and the connection position of the positioning end and the connecting end are provided with a groove.

As a further improvement of the utility model, the deformation holes are filled with glass cement.

Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model relates to a shaft sleeve seat for a lathe, wherein, when the shaft sleeve seat is used, a shaft sleeve to be processed is firstly inserted into an expansion sleeve, then the tension rod which passes through the connecting end and is fixed on the connecting end drives the expansion sleeve to move, and the shaft sleeve in the expansion sleeve is gradually tensioned along with the pulling of the tension rod according to the tensioning function of the expansion sleeve, the utility model is provided with a plurality of spacing grooves at equal intervals in the circumferential direction of the connecting end, a plurality of limiting holes II which are in one-to-one correspondence with the limiting grooves are arranged on the expansion sleeve seat along the circumferential direction of the expansion sleeve seat, limiting blocks are arranged in the limiting holes II, when the expansion sleeve is pulled to move by the pull rod, the end surface of the shaft sleeve can be abutted against the limiting block, so that the phenomenon that the shaft sleeve moves along with the expansion sleeve when the expansion sleeve moves is effectively avoided, and then make the cover that rises shrink more completely, and then guaranteed the stability of axle sleeve location, guaranteed the machining precision of axle sleeve.

(2) The utility model discloses a shaft sleeve seat for lathe, wherein, through be equipped with on the open-ended inner wall that rises the sleeve seat along the axle sleeve stretch out section to the storage section on its internal diameter compression section that reduces gradually in the direction of storage section, with the cooperation stretch out section to the storage section along the axle sleeve its external diameter along the axle sleeve and reduce gradually the shrink section, this kind of setting makes the pull rod when the pull rod is being pulled back, the shrink section can slide along the inner wall of compression section, in order to realize the mild of the cover that rises, shrink gradually, the working strength of the cover that rises has been reduced, the life of the cover that rises has been improved

(3) The utility model discloses a shaft sleeve seat for lathe, structural design is reasonable, and the principle is simple, convenient to popularize and use.

Drawings

Fig. 1 is a schematic structural view of a lathe boss of the present invention;

FIG. 2 is a schematic structural view of the middle expanding sleeve seat of the present invention;

fig. 3 is a schematic structural view of the middle-expansion sleeve of the present invention.

The reference numerals in the schematic drawings illustrate:

01. a shaft sleeve;

02. expanding sleeves; 021. a clamping section; 022. a contraction section; 023. an avoidance section; 024. a groove; 025. a limiting groove; 026. a deformation hole; 027. a circular hole;

03. a sleeve expanding seat; 031. a compression section; 032. a limiting hole II;

04. and a limiting block.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

As shown in fig. 1, 2 and 3, a shaft sleeve base for a lathe of the present embodiment includes a shaft sleeve 01, an expansion sleeve 02 and an expansion sleeve base 03, the shaft sleeve 01 includes a storage section located in the expansion sleeve 02 and an extension section extending from the expansion sleeve 02, and when the shaft sleeve 01 is machined, the extension section is first machined, then the expansion sleeve 02 in the shaft sleeve base is used to position the machined part, and then the unmachined storage section is machined.

The expansion sleeve 03 comprises a positioning end sleeved with the shaft sleeve 01 and a connecting end connected with the pull rod, the outer diameter of the connecting end is smaller than that of the positioning end, a plurality of limiting grooves 025 are arranged at equal intervals along the circumferential direction of the connecting end, and the limiting grooves 025 penetrate through the length of the connecting end and extend to a part of the positioning end; the outer side of the expansion sleeve 02 is sleeved with an expansion sleeve seat 03, a plurality of limiting holes II 032 which correspond to the limiting grooves 025 one by one are formed in the expansion sleeve seat 03 along the circumferential direction of the expansion sleeve seat, limiting blocks 04 are arranged in the limiting holes II 032, and the limiting blocks 04 abut against the outer side wall of the connecting end and the end face of the shaft sleeve 01.

When the shaft sleeve seat of the embodiment is used, firstly, a shaft sleeve 01 to be processed is inserted into the expansion sleeve 02, then the expansion sleeve 02 is driven to move by utilizing the pull rod which penetrates through the connecting end and is fixed on the connecting end, according to the tensioning function of the expansion sleeve 02, the shaft sleeve 01 which is positioned in the expansion sleeve 02 is gradually tensioned along with the pulling of the pull rod, in the embodiment, a plurality of limiting grooves 02 are arranged at equal intervals in the circumferential direction of the connecting end, a plurality of limiting holes II 032 which are in one-to-one correspondence with the limiting grooves 025 are arranged on the expansion sleeve seat 03 along the circumferential direction, and limiting blocks 04 are arranged in the limiting holes II 032, so that when the expansion sleeve 02 is pulled to move by the pull rod, the end surface of the shaft sleeve 01 can abut against the limiting blocks 04, the phenomenon that the shaft sleeve 01 moves along with the expansion sleeve 02 when the expansion sleeve 02 moves is effectively avoided, the expansion sleeve 02 is further completely contracted, and the, the processing precision of the shaft sleeve 01 is ensured.

On the lateral surface of location end and along axle sleeve 01 stretch out the section and be equipped with shrink section 022 and keep away empty section 023 in proper order to the direction of memory segment, wherein, shrink section 022 is for stretching out its external diameter in the direction of section to memory segment along axle sleeve 01 and gradually dwindle structure, keep away empty section 023 for the unchangeable drum structure of external diameter, and keep away the external diameter of empty section 023 and be less than the external diameter of shrink section 022, this embodiment is equipped with through the rear side at shrink section 022 and keeps away empty section 023 than the external diameter is little, this kind of shrink that sets up to shrink section 022 has provided the assurance, and keep away empty section 023 set up simple structure, easily processing.

The positioning end side face is provided with a plurality of deformation holes 026 which are extended to a part of the vacancy-avoiding section 023 from the contraction section 022 at equal intervals along the circumferential direction, one end of each deformation hole 026 penetrates through the whole contraction section 022, the other end of each deformation hole 026 is extended to the round hole 027 on the side face of the vacancy-avoiding section 023, glass cement is filled in each deformation hole 026, the other end of each deformation hole 026 of the embodiment is extended to the round hole 027 on the side face of the vacancy-avoiding section 023, the arrangement effectively reduces the stress concentration phenomenon of the expansion sleeve 02 during contraction, and effectively avoids the cracking phenomenon of the expansion sleeve 02, in addition, the grooves 024 are arranged on the circumferential direction of the inner side wall of the positioning end and the connection position of the positioning end and the connecting end, the arrangement also effectively reduces the stress concentration phenomenon, prolongs the service life of the expansion sleeve 02, glass cement is filled in the deformation hole 026 to prevent chips of the processed shaft sleeve 01 from entering the deformation hole 026 and affecting the contraction function of the expansion sleeve 02.

Rise and be equipped with on the open-ended inner wall of cover seat 03 stretch out the section by axle sleeve 01 and go up its internal diameter compression section 031 that reduces gradually to the storage section orientation, this embodiment is through being equipped with on the open-ended inner wall of cover seat 03 to stretch out section along axle sleeve 01 and go up its internal diameter compression section 031 that reduces gradually to the storage section orientation, stretch out section its external diameter contraction section 022 that reduces gradually to the storage section orientation along axle sleeve 01 with the cooperation, this kind of setting makes the pull rod when the pull rod is being pulled back, contraction section 022 can slide along the inner wall of compression section 031, in order to realize rising the smoothness of cover 03, the gradual shrink, the working strength of cover 03 has been reduced rising, the life of cover 03 has been improved.

This embodiment is on the lateral surface of location end and be located shrink section 022 and keep away the preceding of empty section 023 and still be equipped with the clamp section 021, clamp section 021 is the unchangeable cylinder structure of external diameter, the external diameter of clamp section 021 equals the biggest external diameter of shrink section 022, because there is the clashing with easily at the front end of the cover 03 that rises, this embodiment is through setting up the unchangeable cylinder structure of external diameter at the location end at foremost, and its external diameter equals the biggest external diameter of shrink section 022, can prevent effectively that the conical surface of shrink section 022 from destroying and influence the precision of the cover 03 that rises.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a shaft sleeve seat for lathe, includes axle sleeve (01), rise cover (02) and rise cover seat (03), its characterized in that: the expansion sleeve (03) comprises a positioning end sleeved on the shaft sleeve (01) and a connecting end connected with a pull rod, the outer diameter of the connecting end is smaller than that of the positioning end, a plurality of limiting grooves (025) are arranged at equal intervals along the circumferential direction of the connecting end, and the limiting grooves (025) penetrate through the length of the connecting end and extend to one part of the positioning end;

the outer side of the expansion sleeve (02) is sleeved with an expansion sleeve seat (03), a plurality of limiting holes II (032) which are in one-to-one correspondence with the limiting grooves (025) are formed in the expansion sleeve seat (03) along the circumferential direction of the expansion sleeve seat, limiting blocks (04) are arranged in the limiting holes II (032), and the limiting blocks (04) abut against the outer side wall of the connecting end and the end face of the shaft sleeve (01).

2. The sleeve seat for a lathe according to claim 1, wherein: on the lateral surface of location end and stretch out the section along axle sleeve (01) and be equipped with constriction section (022) and keep away sky section (023) in proper order to the direction of storage section, wherein, constriction section (022) is for stretching out its external diameter structure that reduces gradually along axle sleeve (01) to the direction of storage section, keep away the cylinder structure that the section (023) is the unchangeable external diameter, and keep away the external diameter of sky section (023) and be less than the external diameter of constriction section (022),

the locating end is provided with a plurality of deformation holes (026) which extend from the contraction section (022) to a part of the space avoidance section (023) at equal intervals along the circumferential direction, and one end of each deformation hole (026) penetrates through the whole contraction section (022).

3. The boss for a lathe according to claim 2, wherein: the other end of the deformation hole (026) extends to a round hole (027) on the side of the avoidance section (023).

4. The sleeve seat for a lathe according to claim 1, wherein: and a compression section (031) with the inner diameter gradually reduced from the extension section of the shaft sleeve (01) to the storage section is arranged on the inner wall of the opening of the expansion sleeve seat (03).

5. The sleeve seat for a lathe according to claim 1, wherein: the outer side face of the locating end is provided with a clamping section (021) in front of the contraction section (022) and the clearance section (023), the clamping section (021) is of a cylinder structure with an unchanged outer diameter, and the outer diameter of the clamping section (021) is equal to the maximum outer diameter of the contraction section (022).

6. The sleeve seat for a lathe according to claim 1, wherein: and a groove (024) is formed in the circumferential direction on the inner side wall of the positioning end and at the joint of the positioning end and the connecting end.

7. The sleeve seat for a lathe according to claim 1, wherein: the deformation hole (026) is filled with glass cement.