CN215967444U - Excavator bucket shaft sleeve positioning tool - Google Patents

Abstract

The utility model discloses a positioning tool for a bucket shaft sleeve of an excavator, which belongs to the technical field of tools and comprises a base, a supporting plate fixedly connected to the base, wherein an expansion mandrel is arranged on the side surface of the supporting plate and is formed by enclosing a plurality of tiles, one end of each tile, which is close to the supporting plate, is integrated, the other end of each tile is split, the expansion mandrel is hollow and forms a conical surface, the vertex of the conical surface faces the direction of the supporting plate, a sliding block is connected in the conical surface of the expansion mandrel in a sliding manner, one end, which is close to the supporting plate, of the sliding block is fixedly connected with a first bolt, the other end of the sliding block is fixedly connected with a second bolt, the first bolt penetrates through the supporting plate and is provided with a nut, a clamping plate is sleeved on the second bolt, and one end, which is far away from the supporting plate, of the second bolt is in threaded connection with a clamping nut for adjusting the clamping plate.

Description

Excavator bucket shaft sleeve positioning tool

Technical Field

The utility model relates to the technical field of tools, in particular to a positioning tool for a bucket shaft sleeve of an excavator.

Background

The bucket shaft sleeve is installed in excavator big arm and forearm and scraper bowl junction, can change, the main action prevents bucket shaft and automobile body direct contact, produce wearing and tearing, it is lubricated to need to use a large amount of grease, generally all seted up the oil groove in the bucket shaft sleeve on the present market and be used for storing lubricating grease, the symmetry is provided with the oil through hole of two intercommunication oil grooves on the lateral wall of bucket shaft sleeve, add man-hour in the oil through hole, generally directly adopt the drilling machine to process, nevertheless because the ring cover is the ring form, its through-hole is seted up on the annular through-hole, therefore it punches the degree of difficulty great, the centre gripping of ring cover is also comparatively inconvenient, be difficult to guarantee the precision of punching.

Therefore, the utility model designs a positioning tool for a shaft sleeve of a bucket of an excavator to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning tool for a shaft sleeve of a bucket of an excavator, which aims to solve the technical problem.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an excavator bucket axle sleeve location frock, includes the base, fixed connection is in the backup pad on the base, and the backup pad side is provided with the inflation dabber, the inflation dabber is enclosed to close by a plurality of tiles and forms, the tile is close to the one end formula as an organic whole of backup pad, the other end is split type, the inside cavity of inflation dabber just forms the conical surface, the conical surface summit orientation the backup pad direction, sliding connection has the slider in the conical surface of inflation dabber, the slider is close to the first bolt of one end fixedly connected with of backup pad, slider other end fixedly connected with second bolt, first bolt runs through one side that the backup pad just passed the backup pad is equipped with the nut, the cover is equipped with splint on the second bolt, the one end threaded connection that the backup pad was kept away from to the second bolt has and is used for the adjustment the clamp nut of splint.

Preferably, a guide device is arranged right above the expansion mandrel and comprises a guide plate and a guide sleeve, the axis of the guide sleeve penetrates through the axis of the expansion mandrel, the guide plate is fixedly arranged above the supporting plate, a guide hole is formed in the guide plate, and the guide sleeve is inserted in the guide hole.

Preferably, the guide hole is coaxial with the guide sleeve.

Preferably, the expansion mandrel is provided with an anti-collision hole at a position corresponding to the guide hole.

Preferably, a positioning device is arranged below the expansion mandrel and comprises a positioning pin and a positioning seat, a blind hole is formed in the top of the positioning seat, the positioning pin is in clearance fit with the blind hole, a spring is arranged at the bottom of the positioning pin, and the positioning pin is coaxial with the guide sleeve.

Preferably, the cross section of the first bolt is in a D shape, and a D-shaped through hole matched with the first bolt is formed in the supporting plate.

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

when the utility model is used, only the shaft sleeve to be processed is sleeved on the expansion mandrel, and the end part of the shaft sleeve is tightly attached to the supporting plate, then the nut on the first bolt is screwed down to enable the expansion mandrel to fix the shaft sleeve, then the clamping plate is sleeved on the second bolt, then the clamping nut is used for fixing the clamping plate at the end part of the shaft sleeve to prevent the shaft sleeve from generating axial displacement during processing, after the first hole is processed in the shaft sleeve, loosening the nut on the first bolt to reduce the diameter of the expansion mandrel, enabling the shaft sleeve to rotate on the expansion mandrel, when the shaft sleeve rotates, the top of the positioning pin below the expansion mandrel can be clamped into a first hole processed on the shaft sleeve, the nut on the first screw rod is screwed at the moment, the shaft sleeve is clamped by the expansion mandrel, then the clamping nut is adjusted, the shaft sleeve is tightly pressed by the clamping plate, can process the second hole, this frock is reliable and stable to the centre gripping of axle sleeve, and the second hole that just processes out has better axiality with first hole.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of the highlighting fixture of the present embodiment;

FIG. 3 is a side view of the clamp of the present embodiment;

FIG. 4 is a schematic cross-sectional view of the clamp of the present embodiment;

fig. 5 is a schematic structural diagram of the highlighting slider of the embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a base; 2. a support plate; 3. an expansion mandrel; 31. a tile; 32. an anti-collision hole; 4. a guide plate; 41. a guide hole; 42. a guide sleeve; 5. a splint; 6. a slider; 61. a first bolt; 611. a nut; 62. a second bolt; 621. clamping the nut; 7. positioning seats; 71. positioning pins; 72. a spring; 73. blind holes; 8. and a shaft sleeve.

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. 1-5, the present invention provides a technical solution:

a positioning tool for an excavator bucket shaft sleeve 8 comprises a base 1, a supporting plate 2 fixedly connected to the base 1, an expansion mandrel 3 is arranged on the side face of the supporting plate 2, the expansion mandrel 3 is formed by enclosing four tiles 31, one end, close to the supporting plate 2, of each tile 31 is integrated, the other end of each tile 31 is split, the expansion mandrel 3 is hollow and forms a conical surface, the vertex of the conical surface faces the direction of the supporting plate 2, a sliding block 6 is connected to the conical surface in the expansion mandrel 3 in a sliding mode, one end, close to the supporting plate 2, of the sliding block 6 is fixedly connected with a first bolt 61, the other end of the sliding block 6 is fixedly connected with a second bolt 62, a nut 611 is arranged on one side, penetrating through the supporting plate 2, of the first bolt 61, a clamping plate 5 is sleeved on the second bolt 62, one end, far away from the supporting plate 2, of the second bolt 62 is in threaded connection with a clamping nut 621 used for adjusting the clamping plate 5, wherein in an initial state, the slide block 6 is positioned in the middle of the expansion mandrel 3, and the length of the expansion mandrel 3 is slightly shorter than that of the shaft sleeve 8 to be processed.

Preferably, be provided with guider directly over expansion mandrel 3, guider includes deflector 4 and uide bushing 42, the axis of uide bushing 42 passes expansion mandrel 3's axis, 4 fixed mounting of deflector in backup pad 2 tops, guiding hole 41 has been seted up to deflector 4, it has uide bushing 42 to peg graft in the guiding hole 41, the precision of drilling has been improved in setting through guider, setting through uide bushing 42, prevent that guiding hole 41 from being worn and torn by the drill bit, change uide bushing 42 that can convenient and fast after uide bushing 42 takes place to wear and tear, the life of guiding hole 41 has been prolonged.

Preferably, the guide hole 41 is coaxial with the guide sleeve 42, which improves the accuracy of drilling.

Preferably, the expansion mandrel 3 is provided with an anti-collision hole 32 at a position corresponding to the guide hole 41, and the anti-collision hole 32 can prevent a drill bit from directly drilling on the expansion mandrel 3 to protect the expansion mandrel 3.

Preferably, a positioning device is arranged below the expansion mandrel 3, the positioning device comprises a positioning pin 71 and a positioning seat 7, a blind hole 73 is formed in the top of the positioning seat 7, the positioning pin 71 is in clearance fit with the blind hole 73, a spring 72 is arranged at the bottom of the positioning pin 71, the positioning pin 71 is coaxial with the guide sleeve 42, the coaxiality of a first machined hole and a second machined hole can be ensured through the arrangement of the positioning pin 71, and the positioning and machining are convenient.

Preferably, first bolt 61 cross section profile is the D style of calligraphy, offers the D style of calligraphy through-hole that suits with first bolt 61 on the backup pad 2, and first bolt 61 cross section is irregular shape, can prevent when screwing up nut 611, and first screw rod follows nut 611 and rotates, also prevents simultaneously when screwing up the clamp nut 621 on the second screw rod, and first screw rod follows the rotation, leads to splint 5 to press from both sides not tightly.

One specific application of this embodiment is:

when the expansion mandrel is used, only the shaft sleeve 8 to be processed is sleeved on the expansion mandrel 3, the end part of the shaft sleeve is enabled to be attached to the supporting plate 2, then the nut 611 on the first bolt 61 is screwed down to enable the expansion mandrel 3 to fix the shaft sleeve 8, because one side surface of the first bolt 61 is a plane, the cross section outline of the first bolt is in a D shape, and the hole formed in the supporting plate 2 is also in a D shape, when the nut 611 or the clamping nut 621 is screwed down, the first bolt 61 and the second bolt 62 cannot rotate, then the clamping plate 5 is sleeved on the second bolt 62, then the clamping nut 621 is used for fixing the clamping plate 5 at the end part of the shaft sleeve 8, so that the shaft sleeve 8 is prevented from generating axial displacement during processing, after the first hole is processed in the shaft sleeve 8, the nut 611 on the first bolt 61 is loosened to enable the diameter of the expansion mandrel 3 to be reduced, so that the shaft sleeve 8 can rotate on the expansion mandrel 3, and when the shaft sleeve 8 rotates, the top of the positioning pin 71 below the expansion mandrel 3 can be clamped into the first hole processed in the shaft sleeve 8, at this moment, the nut 611 on the first screw rod is screwed, the expansion mandrel 3 clamps the shaft sleeve 8, then the clamping nut 621 is adjusted, the clamping plate 5 compresses the shaft sleeve 8, and the second hole can be processed.

To sum up, can fix axle sleeve 8 through expansion bolts's setting, can compress tightly axle sleeve 8 at backup pad 2 lateral wall through the setting of splint 5, through guider's setting, can improve the precision of drilling, through positioner's setting, can improve the axiality in two holes.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an excavator bucket axle sleeve (8) location frock, includes base (1), backup pad (2) of fixed connection on base (1), backup pad (2) side is provided with inflation dabber (3), its characterized in that: the expansion mandrel (3) is formed by enclosing a plurality of tiles (31), one end of each tile (31) close to the support plate (2) is integrated, the other end of each tile is split, the expansion mandrel (3) is hollow and forms a conical surface, the vertex of the conical surface faces to the direction of the supporting plate (2), a sliding block (6) is connected in a sliding manner in the conical surface of the expansion mandrel (3), a first bolt (61) is fixedly connected at one end of the sliding block (6) close to the supporting plate (2), the other end of the sliding block (6) is fixedly connected with a second bolt (62), the first bolt (61) penetrates through the supporting plate (2) and a nut (611) is arranged on one side of the supporting plate (2), the cover is equipped with splint (5) on second bolt (62), the one end threaded connection that backup pad (2) were kept away from in second bolt (62) has and is used for the adjustment clamp nut (621) of splint (5).

2. The excavator bucket shaft sleeve (8) positioning tool according to claim 1, characterized in that: be provided with guider directly over inflation dabber (3), guider includes deflector (4) and uide bushing (42), the axis of uide bushing (42) passes the axis of inflation dabber (3), deflector (4) fixed mounting in backup pad (2) top, guiding hole (41) have been seted up in deflector (4), plug-in connection has uide bushing (42) in guiding hole (41).

3. The excavator bucket shaft sleeve (8) positioning tool according to claim 2, characterized in that: the guide hole (41) is coaxial with the guide sleeve (42).

4. The excavator bucket shaft sleeve (8) positioning tool according to claim 2, characterized in that: and the expansion mandrel (3) is provided with an anti-collision hole (32) at a position corresponding to the guide hole (41).

5. The excavator bucket shaft sleeve (8) positioning tool according to claim 2, characterized in that: the expansion core shaft (3) is provided with a positioning device below, the positioning device comprises a positioning pin (71) and a positioning seat (7), the top of the positioning seat (7) is provided with a blind hole (73), the positioning pin (71) is in clearance fit with the blind hole (73), the bottom of the positioning pin (71) is provided with a spring (72), and the positioning pin (71) is coaxial with the guide sleeve (42).

6. The excavator bucket shaft sleeve (8) positioning tool according to claim 1, characterized in that: the cross section profile of the first bolt (61) is D-shaped, and a D-shaped through hole matched with the first bolt (61) is formed in the support plate (2).

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