CN216299084U - A spacing frock for main shaft - Google Patents

Abstract

The utility model belongs to the technical field of tool fixtures, and particularly discloses a limiting tool for a main shaft, which comprises a rotation limiting assembly and a shaft end limiting assembly, wherein the rotation limiting assembly comprises a first bottom plate and two supporting frame structures fixed on the first bottom plate, the supporting frame structures are horizontally and rotatably connected with bearings, and the center distance between every two adjacent bearings is 450-500 mm; the shaft end limiting assembly is abutted against the end face of the main shaft. By adopting the scheme of the utility model, the bearing can adaptively rotate in the process of clockwise or anticlockwise rotation of the main shaft, so that the sliding friction in the prior art is converted into rolling friction, the friction force between the main shaft and the tool is reduced, and the problem of serious abrasion between the existing tool and the outer wall of the main shaft is solved.

Description

A spacing frock for main shaft

Technical Field

The utility model belongs to the technical field of tool fixtures, and particularly relates to a limiting tool for a spindle.

Background

Large-scale pivot is adding man-hour, it is spacing to need frock clamp to carry on, so that processing, frock clamp is fixed subaerial usually, is mostly downward recessed trapezoidal structure with the position of pivot contact, use the (mixing) shaft as the example, because it need rotate in the course of working, and adopt present frock clamp, the main shaft of discovery (mixing) shaft is serious with the position wearing and tearing of frock clamp contact, not only makes frock clamp's life short, and has also caused certain damage to the outer wall of main shaft.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a limiting tool for a spindle, and aims to solve the problem that the existing tool is seriously abraded with the outer wall of the spindle.

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

the limiting tool for the main shaft comprises a rotary limiting assembly and a shaft end limiting assembly, wherein the rotary limiting assembly comprises a first bottom plate and two supporting frame structures fixed on the first bottom plate, the supporting frame structures are horizontally and rotatably connected with bearings, and the center distance between every two adjacent bearings is 450-500 mm; the shaft end limiting assembly is abutted against the end face of the main shaft.

Compared with the prior art, the utility model has the following beneficial effects:

1. the spacing frock that this scheme provided fixes the spacing subassembly of gyration earlier before using, and later with the main shaft hoist and mount to the spacing subassembly of gyration on for the main shaft is located between two bearings, then removes the tip to the main shaft with the spacing subassembly of axle head, makes its terminal surface with the main shaft offset, makes the projection of the axis of the spacing subassembly of axle head on the horizontal direction simultaneously be located between two bearings, supports stable back to the main shaft like this, can process the main shaft.

2. By adopting the limiting tool provided by the scheme, the bearing can adaptively rotate in the clockwise or anticlockwise rotating process of the main shaft, so that the sliding friction in the prior art is converted into rolling friction, the friction force between the main shaft and the tool is reduced, and the problem of serious abrasion between the existing tool and the outer wall of the main shaft is solved; in addition, the scheme also provides a shaft end limiting assembly in addition to prevent the spindle from generating axial displacement in the machining process.

Furthermore, a plurality of limiting holes are formed in the first bottom plate.

Has the advantages that: through squeezing into expansion bolts spacing downthehole for the spacing subassembly of gyration can be firmly fixed subaerial, prevents to take place the problem that collapses in the course of working.

Furthermore, the supporting frame structure comprises two supporting plates vertically fixed on the first bottom plate, a semicircular groove is formed in the top of each supporting plate, a supporting shaft located in the semicircular groove is arranged at the top of each supporting plate, the bearings are coaxially fixed on the supporting shafts, and a cover plate which is abutted to the end faces of the supporting shafts is fixed on each supporting plate.

Has the advantages that: through the apron with the back shaft spacing in the half slot in this scheme, convenient installation and the dismantlement to whole spacing frock of gyration like this.

Further, a bearing washer is fixed between the bearing and the supporting shaft, and a supporting sleeve is fixed outside the bearing.

Has the advantages that: the service life of the bearing is prolonged, and abrasion between the main shaft and the bearing is avoided.

Furthermore, reinforcing ribs are fixed between the supporting plates and the first bottom plate, a connecting plate is fixed between the two supporting plates in the same supporting frame structure, and a rib plate is fixed between the two supporting frame structures.

Has the advantages that: the arrangement is such as to improve the load bearing stability of the two bracing frame structures.

Furthermore, the shaft end limiting assembly comprises a second bottom plate, a plurality of mounting holes are formed in the second bottom plate, a stand column is vertically fixed to the middle of the second bottom plate, a baffle is horizontally fixed to the top of the stand column, and the side edge of the baffle abuts against the end face of the main shaft.

Has the advantages that: the shaft end limiting assembly arranged in this way is convenient to mount and move.

Further, a plurality of rib plates are welded between the baffle and the upright column and between the second bottom plate and the upright column, and the plurality of rib plates are distributed at equal intervals along the circumferential direction of the upright column.

Has the advantages that: this arrangement improves the bending strength of the column.

Further, the mounting hole is the bar hole, and each bar hole is parallel to each other.

Has the advantages that: set up like this, when the distance between spacing subassembly of needs adjustment axle head and the main shaft terminal surface, need not to take out the expansion bolts of installation completely, and after loosening expansion bolts, promote the spacing subassembly of axle head and make baffle and main shaft terminal surface offset can.

Further, the baffle is a circular plate.

Has the advantages that: the baffle is set to be the circular plate, so that the contact area between the end face of the main shaft and the baffle can be reduced, and the abrasion between the end face of the main shaft and the baffle when the main shaft rotates is reduced.

Furthermore, a plurality of steel balls are rotatably connected to the circumferential profile of the baffle, the steel balls are arranged at equal intervals around the circumference of the baffle, and one part of the ball is located outside the baffle.

Has the advantages that: thus, before use, the steel balls can be coated with lubricating oil, so that the friction between the top end of the main shaft and the baffle plate is reduced when the main shaft rotates.

Drawings

Fig. 1 is an isometric view of a rotation limiting assembly in accordance with embodiment 1 of the present invention.

Fig. 2 is an isometric view of an axial end stop assembly of embodiment 1 of the present invention.

FIG. 3 is an isometric view of the tool of example 1 of the present invention in use.

Fig. 4 is a top view of a shaft end stop assembly in embodiment 2 of the present invention.

Reference numerals in the drawings of the specification include: the main shaft 1, the rotation limiting component 10, the shaft end limiting component 20, the first bottom plate 100, the limiting hole 101, the bearing 102, the supporting plate 103, the supporting shaft 104, the cover plate 105, the bearing washer 106, the supporting sleeve 107, the reinforcing rib 108, the connecting plate 109, the rib plate 110, the support plate 111, the second bottom plate 200, the mounting hole 201, the upright column 202, the baffle plate 203, the rib plate 204 and the steel ball 205.

Detailed Description

The utility model is further described in detail below with reference to the accompanying drawings, and specific embodiments are given.

Example 1:

basically as shown in fig. 1, fig. 2 and fig. 3, the limiting tool for the spindle comprises a rotation limiting assembly 10 and a shaft end limiting assembly 20, wherein the rotation limiting assembly 10 comprises a first bottom plate 100 and two support frame structures fixed on the first bottom plate 100, a plurality of limiting holes 101 are formed in the first bottom plate 100, expansion bolts are arranged in the limiting holes 101, bearings 102 are horizontally and rotatably connected to the support frame structures, and the center distance between every two adjacent bearings 102 is 450-500 mm.

The supporting frame structure comprises two supporting plates 103 vertically fixed on the first base plate 100, a semicircular groove is formed in the top of each supporting plate 103, a supporting shaft 104 located in the semicircular groove is fixed to the top of each supporting plate 103, a cover plate 105 is fixed to each supporting plate 103 through bolts, and the cover plate 105 is abutted to the end face of the supporting shaft 104.

The bearing 102 is coaxially fixed on the support shaft 104, in the embodiment, the bearing 102 is a roller bearing, a bearing washer 106 is fixed between the bearing 102 and the support shaft 104, a support sleeve 107 is fixed outside the bearing 102, a reinforcing rib 108 is fixed between the support plate 103 and the first bottom plate 100, a connecting plate 109 is fixed between the two support plates 103, and a rib plate 110 is fixed between the two support frame structures.

Still be fixed with extension board 111 on first bottom plate 100, extension board 111 is located two bearing bracket structure's axis, this embodiment axle end limit subassembly 20 includes second bottom plate 200, a plurality of mounting holes 201 have been seted up on second bottom plate 200, mounting holes 201 are the bar hole in this embodiment, and each bar hole parallel arrangement each other, vertical stand 202 that is fixed with in the middle part of second bottom plate 200, stand 202 adopts the steel pipe of phi 89 to make in this embodiment, top level at stand 202 is fixed with baffle 203, baffle 203 is the circular slab in this embodiment, after main shaft 1 hoists on the spacing subassembly 10 of gyration, baffle 203 is located the below of main shaft 1 axis.

In this embodiment, a plurality of ribs 204 are welded between the baffle 203 and the upright 202 and between the second bottom plate 200 and the upright 202, and the plurality of ribs 204 are distributed at equal intervals along the circumferential direction of the upright 202.

In this embodiment, before the frock is used, firstly fix the spacing subassembly 10 of gyration through expansion bolts, later hoist main shaft 1 to the spacing subassembly 10 of gyration on, make main shaft 1 be located between two bearings 102, then remove the spacing subassembly 20 of axle head to the tip of main shaft 1, make baffle 203 offset with the terminal surface of main shaft 1, the location through extension board 111 simultaneously, the projection of the axis of the spacing subassembly 20 of messenger's axle head on the horizontal direction is located extension board 111, then squeeze into mounting hole 201 with expansion bolts again, make the spacing subassembly 20 of axle head fixed with ground.

Example 2:

the difference from embodiment 1 is that, as shown in fig. 4, in this embodiment, a plurality of steel balls 205 are rotatably connected to the circumferential profile of the baffle plate 203, the plurality of steel balls 205 are arranged at equal intervals around the circumference of the baffle plate 203, and a part of the steel balls are located outside the baffle plate 203, and before use, the steel balls 205 can be coated with lubricating oil, so that the friction between the top end of the main shaft 1 and the baffle plate 203 is reduced when the main shaft is rotated.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (10)

1. A spacing frock for main shaft, its characterized in that: the device comprises a rotation limiting assembly and a shaft end limiting assembly, wherein the rotation limiting assembly comprises a first bottom plate and two supporting frame structures fixed on the first bottom plate, the supporting frame structures are horizontally and rotatably connected with bearings, and the center distance between every two adjacent bearings is 450-500 mm; the shaft end limiting assembly is abutted against the end face of the main shaft.

2. The limit tool for the main shaft according to claim 1, wherein: a plurality of limiting holes are formed in the first bottom plate.

3. The limit tool for the main shaft according to claim 1, wherein: the supporting frame structure comprises two supporting plates which are vertically fixed on the first bottom plate, a semicircular groove is formed in the top of each supporting plate, a supporting shaft located in the semicircular groove is arranged at the top of each supporting plate, a bearing is coaxially fixed on the supporting shaft, and a cover plate which is abutted to the end face of the supporting shaft is fixed on each supporting plate.

4. The limit tool for the main shaft according to claim 3, wherein: a bearing washer is fixed between the bearing and the supporting shaft, and a supporting sleeve is fixed outside the bearing.

5. The limit tool for the main shaft according to claim 4, wherein: reinforcing ribs are fixed between the supporting plates and the first bottom plate, a connecting plate is fixed between the two supporting plates in the same supporting frame structure, and a rib plate is fixed between the two supporting frame structures.

6. The limit tool for the main shaft according to claim 5, wherein: the shaft end limiting assembly comprises a second bottom plate, a plurality of mounting holes are formed in the second bottom plate, a stand column is vertically fixed in the middle of the second bottom plate, a baffle is horizontally fixed at the top of the stand column, and the side edge of the baffle abuts against the end face of the main shaft.

7. The limit tool for the main shaft according to claim 6, wherein: a plurality of rib plates are welded between the baffle and the upright column and between the second bottom plate and the upright column, and are distributed at equal intervals along the circumferential direction of the upright column.

8. The limit tool for the main shaft according to claim 7, wherein: the mounting hole is the bar hole, and each bar hole parallel arrangement each other.

9. The limit tool for the main shaft according to claim 8, wherein: the baffle is a circular plate.

10. The limit tool for the main shaft according to claim 9, wherein: the steel balls are rotatably connected to the circumferential profile of the baffle plate, the steel balls are arranged around the circumferential direction of the baffle plate at equal intervals, and one part of each ball is located outside the baffle plate.

Images