CN216228146U

CN216228146U - Tool for machining spindle of pneumatic jumbolter

Info

Publication number: CN216228146U
Application number: CN202122682811.2U
Authority: CN
Inventors: 周新良; 唐雪丰; 王健康
Original assignee: Jiangyin Changli Technology Co ltd
Current assignee: Jiangyin Changli Technology Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-04-08
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a tool for machining a main shaft of a pneumatic anchor rod drilling machine, which comprises two milling cutters and a main shaft fixing device for fixing the main shaft between the two milling cutters, wherein the fixing device comprises a base plate, a support for placing the main shaft, a pressing plate for fixing the main shaft on the support and a driving assembly for driving the lower pressing end of the pressing plate to fall, the two milling cutters are coaxial and arranged at intervals, the base plate is fixedly connected to a milling station of the milling machine, the support is connected with the base plate, and the pressing plate is movably arranged above the support. The tool for machining the main shaft of the pneumatic jumbolter is reasonable in structure, can be used for simultaneously milling two ends of the main shaft, is high in coaxiality of the center holes machined at two ends of the main shaft, and improves the production efficiency and the product quality.

Description

Tool for machining spindle of pneumatic jumbolter

Technical Field

The utility model relates to a milling tool, in particular to a tool for machining a spindle of a pneumatic jumbolter.

Background

In the prior art, when a main shaft of a pneumatic jumbolter is machined, the main shaft is fixed on a tool, one end of the main shaft is milled, the main shaft is reversed on the tool after one end of the main shaft is milled, and the milling operation is continued on the other end of the main shaft.

The tool cannot mill two ends at the same time, so that the production efficiency is low; because the main shaft has the operation of switching-over, there will be certain error in the center hole site of main shaft both ends processing, and the axiality is on the low side, influences the quality of product.

Therefore, there is a need for an improved tooling for the machining of the spindle of a pneumatic jumbolter in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a tool for machining a main shaft of a pneumatic roofbolter, which can simultaneously perform milling operation on two ends of the main shaft, has high coaxiality of central holes machined in two ends of the main shaft, and improves the production efficiency and the product quality.

In order to realize the technical effects, the technical scheme of the utility model is as follows: a tool for machining a main shaft of a pneumatic jumbolter comprises two milling cutters and a main shaft fixing device for fixing the main shaft between the two milling cutters, wherein the two milling cutters are arranged with a same axial lead; the spindle fixing device comprises a fixedly arranged base plate, a pressing plate and a driving assembly, wherein the pressing plate is rotatably arranged above the base plate, the driving assembly is used for driving the pressing plate to clamp the spindle between the base plate and the pressing plate, and a rotating shaft of the pressing plate is arranged between a lower pressing end and a force application end of the pressing plate; the driving assembly comprises a hydraulic oil cylinder fixedly arranged at the force application end of the pressing plate and a cushion block arranged below the hydraulic oil cylinder, the end part of a piston rod of the hydraulic oil cylinder is arranged in a hemispherical shape, and the end part of the piston rod of the hydraulic oil cylinder is in contact with the upper surface of the cushion block. Through the design, the two ends of the main shaft can be milled on the same axis at the same time, the coaxiality of the central holes machined at the two ends of the main shaft is high, and the yield of products is ensured; the clamping force of the hydraulic oil cylinder is large, and the clamping is convenient and quick; in the rotating process of the pressure plate, the end part of the piston rod can be stably contacted with the cushion block all the time, and if the end part of the piston rod is still cylindrical, the piston rod is easy to wear.

The preferred technical scheme is that the distance between the rotating shaft and the pressing end of the pressing plate is smaller than the distance between the rotating shaft and the force application end of the pressing plate. Through the design, the pressure plate is a labor-saving lever, and the main shaft can be clamped by smaller thrust; compared with the pressing plate which is straight up and down, the hydraulic oil cylinder applies the same thrust, and the pressing force applied by the pressing plate pressing end with the lever design is larger.

The optimized technical scheme is that the substrate is fixedly connected with a support in a detachable mode, and the support is provided with a limiting groove for placing the spindle. Through the design, the main shaft can be limited.

The optimized technical scheme is that the device further comprises a locking bolt arranged in the support in a penetrating mode and a locking hole arranged on the base plate, the locking bolt is in threaded connection with the locking hole, and a plurality of locking holes are formed in the locking hole along the axial lead direction of the main shaft. Through the design, the purpose of adjusting the positions of the supports can be achieved, and the distance between the two supports is adjusted according to the main shafts with different lengths.

The preferable technical scheme is that the substrate and the bracket are respectively provided with a positioning hole and a positioning bulge which are matched with each other in an inserted manner. Through such design, can realize the quick location of support, also play certain limiting displacement to the support simultaneously.

The optimized technical scheme is that the device also comprises a fixedly arranged bottom plate, and the substrate is fixedly connected with the bottom plate; the bottom plate is provided with a sliding chute, and the sliding chute extends along the direction vertical to the axial lead of the main shaft; the locking bolt is arranged on the base plate, the groove for the locking bolt to penetrate through is formed in the base plate, the locking nut is in threaded connection with the locking bolt, and the end portion of the locking bolt is vertically limited in the sliding groove. Through the design, the position adjustment of the bracket in each direction in the horizontal direction can be realized.

The optimized technical scheme is that the base plate is provided with a convex block which is matched with the sliding groove in an inserted manner. Through such design, can play certain horizontal spacing effect to the base plate.

The utility model has the advantages and beneficial effects that: the tool for machining the main shaft of the pneumatic roofbolter is reasonable in structure, and through the arrangement of the double milling cutters with the same axial lead and the main shaft fixing device, the two ends of the main shaft are milled simultaneously, so that the coaxiality of the center holes machined in the two ends of the milled main shaft can be high.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the tool for pneumatic jumbolter spindle machining according to the present invention;

FIG. 2 is a side view of an embodiment of the tooling of the present invention for the machining of the spindle of a pneumatic jumbolter;

FIG. 3 is a front view of an embodiment of the tool for pneumatic jumbolter spindle machining of the present invention;

FIG. 4 is a cross-sectional view of a bracket of an embodiment of the tool for pneumatic jumbolter spindle machining of the present invention;

FIG. 5 is a schematic structural view of a base plate of an embodiment of the tool for pneumatic jumbolter spindle machining of the present invention;

FIG. 6 is a schematic structural view of a pressure plate of an embodiment of the tool for machining the spindle of the pneumatic jumbolter according to the present invention;

in the figure: 1. a substrate; 11. a locking hole; 12. positioning holes; 13. a groove; 14. a bump; 2. a support; 21. positioning the projection; 22. a limiting groove; 3. pressing a plate; 4. a locking bolt; 5. a rotating shaft; 6. a hydraulic cylinder; 7. milling cutters; 8. a main shaft; 9. a base plate; 91. a chute; 92. locking the bolt; 93. locking the nut; 94. and a cushion block.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", 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 device or element being referred to 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Examples

As shown in fig. 1 to 6, the tool for machining the spindle of the pneumatic jumbolter of the embodiment comprises two milling cutters 7 and a spindle fixing device for fixing a spindle 8 between the two milling cutters 7, wherein the two milling cutters 7 are arranged coaxially; the spindle fixing device comprises a base plate 1, a pressing plate 3 and a driving assembly, wherein the base plate 1 is fixedly arranged, the pressing plate 3 is rotatably arranged above the base plate 1, the driving assembly is used for driving the pressing plate 3 to clamp the spindle 8 between the base plate 1 and the pressing plate 3, and a rotating shaft 5 of the pressing plate 3 is arranged between a lower pressing end and a force application end of the pressing plate 3; the driving assembly comprises a hydraulic oil cylinder 6 fixedly arranged at the force application end of the pressing plate 3 and a cushion block 94 arranged below the hydraulic oil cylinder 6, the end part of a piston rod of the hydraulic oil cylinder 6 is arranged in a hemispherical shape, and the end part of the piston rod of the hydraulic oil cylinder 6 is arranged in contact with the upper surface of the cushion block 94.

The distance between the rotating shaft 5 and the pressing end of the pressing plate 3 is smaller than the distance between the rotating shaft 5 and the force applying end of the pressing plate 3.

The base plate 1 is mutually detached and fixedly connected with a support 2, and the support 2 is provided with a limit groove 22 for placing the main shaft 8.

The locking device is characterized by further comprising a locking bolt 4 arranged in the support 2 in a penetrating mode and a locking hole 11 arranged on the base plate 1, wherein the locking bolt 4 is in threaded connection with the locking hole 11, and the locking hole 11 is provided with a plurality of locking holes along the axial lead direction of the main shaft 8.

The base plate 1 and the bracket 2 are respectively provided with a positioning hole 12 and a positioning bulge 21 which are matched with each other in an inserted manner.

The substrate is characterized by further comprising a bottom plate 9 which is fixedly arranged, and the substrate 1 is fixedly connected with the bottom plate 9; the bottom plate 9 is provided with a sliding groove 91, and the sliding groove 91 extends along a direction perpendicular to the axial lead of the main shaft 8; the locking device further comprises a locking bolt 92, a groove 13 formed in the substrate 1 and used for the locking bolt 92 to penetrate through, and a locking nut 93 in threaded connection with the locking bolt 92, wherein the end portion of the locking bolt 92 is vertically limited in the sliding groove 91.

The substrate 1 is provided with a projection 14 which is matched with the sliding groove 91 in an inserting manner.

The use mode of the embodiment is as follows: the distance between the two supports 2 is adjusted according to the length of the main shaft 8: screwing out the locking bolt 4, moving the bracket 2, inserting the positioning bulge 21 at the bottom end of the bracket 2 into the positioning hole 12 on the substrate 1 after the bracket 2 moves to the target position, and then screwing the locking bolt 4 to fix the bracket 2 on the substrate 1;

the main shaft 8 is placed in the limiting groove 22 of the support 2, the hydraulic oil cylinder 6 is started, a piston rod of the hydraulic oil cylinder 6 is contacted with the cushion block 94 to jack up the force application end of the pressure plate 3, the lower pressing end descends until the main shaft 8 is fixed on the support 2 by the lower pressing end, and the hydraulic oil cylinder 6 is stopped.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The tool for machining the spindle of the pneumatic jumbolter is characterized by comprising two milling cutters (7) and a spindle fixing device for fixing a spindle (8) between the two milling cutters (7), wherein the two milling cutters (7) are arranged with the same axis; the spindle fixing device comprises a base plate (1) fixedly arranged, a pressing plate (3) rotatably arranged above the base plate (1) and a driving assembly for driving the pressing plate (3) to clamp the spindle (8) between the base plate (1) and the pressing plate (3), wherein a rotating shaft (5) of the pressing plate (3) is arranged between a lower pressing end and a force application end of the pressing plate (3); the driving assembly comprises a hydraulic oil cylinder (6) fixedly arranged at the force application end of the pressing plate (3) and a cushion block (94) arranged below the hydraulic oil cylinder (6), the end part of a piston rod of the hydraulic oil cylinder (6) is arranged in a hemispherical shape, and the end part of the piston rod of the hydraulic oil cylinder (6) is in contact with the upper surface of the cushion block (94).

2. The tooling for pneumatic roofbolter spindle machining according to claim 1, characterized in that the distance between the rotating shaft (5) and the pressing end of the pressing plate (3) is smaller than the distance between the rotating shaft (5) and the force application end of the pressing plate (3).

3. The tooling for machining the main shaft of the pneumatic jumbolter according to claim 1, wherein the base plate (1) is fixedly connected with a bracket (2) in a detachable manner, and the bracket (2) is provided with a limiting groove (22) for placing the main shaft (8).

4. The tool for machining the main shaft of the pneumatic roofbolter according to claim 3, further comprising a locking bolt (4) penetrating into the support (2) and a locking hole (11) formed in the base plate (1), wherein the locking bolt (4) is in threaded connection with the locking hole (11), and a plurality of locking holes (11) are formed in the direction of the axis of the main shaft (8).

5. The tooling for processing the spindle of the pneumatic jumbolter according to claim 3 or 4, wherein the base plate (1) and the bracket (2) are respectively provided with a positioning hole (12) and a positioning protrusion (21) which are matched with each other in an inserted manner.

6. The tool for machining the spindle of the pneumatic jumbolter according to claim 4, further comprising a fixedly arranged bottom plate (9), wherein the base plate (1) is fixedly connected with the bottom plate (9); the bottom plate (9) is provided with a sliding groove (91), and the sliding groove (91) extends along the direction vertical to the axial lead of the main shaft (8); the locking device is characterized by further comprising a locking bolt (92), a groove (13) formed in the substrate (1) and used for the locking bolt (92) to penetrate through, and a locking nut (93) in threaded connection with the locking bolt (92), wherein the end portion of the locking bolt (92) is vertically limited in the sliding groove (91).

7. The tooling for the pneumatic jumbolter spindle machining according to claim 6, wherein the base plate (1) is provided with a projection (14) which is in plug-fit with the chute (91).