CN213827316U

CN213827316U - Lengthened combined reamer

Info

Publication number: CN213827316U
Application number: CN202022934677.6U
Authority: CN
Inventors: 房景臣; 穆晗; 唐振; 王旭; 熊剑锋; 王金海; 韦军; 赵鹏; 吴言
Original assignee: Tianjin Rongheng Technology Co ltd; Beijing Aerospace Hi Tech New Materials Co ltd Tianjin Branch
Current assignee: Tianjin Rongheng Technology Co ltd; Beijing Aerospace Hi Tech New Materials Co ltd Tianjin Branch
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-30
Anticipated expiration: 2030-12-10

Abstract

The utility model provides an extension reamer combination, including handle of a knife and cutter arbor, handle of a knife one end sets up the tool bit, the terminal surface center that tool bit one end was kept away from to the handle of a knife sets up the round pin axle, the round pin axle is including location end and link, the link passes through location end and connects the handle of a knife, and location end and link junction set up the recess, cutter arbor one end center sets up the pinhole, the pinhole includes locating hole and connecting hole, the connecting hole sets up in the pinhole bottom, the locating hole sets up in the pinhole top, locating hole and location end transition fit, the connecting hole inboard sets up the screw thread, the connecting hole passes through screw thread and link cooperation. The beneficial effects of the utility model are that the precision is high, is convenient for change the tool bit.

Description

Lengthened combined reamer

Technical Field

The utility model belongs to the field of machinery, especially, relate to an extension gang reamer.

Background

Use integral type welding edge reamer processing on the present market to the alloy steel that the cutter adopted, the rigidity of cutter is poor, and the precision is lower when carrying out the reaming more than the bore depth reaches 10 times footpath, still can't guarantee the life-span of cutter, carry out the during operation and can lead to the cutter to damage, still can't guarantee the precision of processing, because the life-span is shorter, can only scrap the cutter wholly after life has arrived, then more renew's cutter has increased use and processing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a precision is high, be convenient for change the extension gang reamer of tool bit, especially is fit for the reaming work that the degree of depth reaches 10 times bore hole depths.

The technical scheme of the utility model is that: the utility model provides an extension reamer combination, includes handle of a knife and cutter arbor, handle of a knife one end sets up the tool bit, the terminal surface center that tool bit one end was kept away from to the handle of a knife sets up the round pin axle, the round pin axle includes location end and link, the link passes through the location end and connects the handle of a knife, location end and link junction set up the recess, cutter arbor one end center sets up the pinhole, the pinhole includes locating hole and connecting hole, the connecting hole sets up in the pinhole bottom, the locating hole sets up in the pinhole top, locating hole and location end transition fit, the connecting hole inboard sets up the screw thread, the connecting hole passes through screw thread and link cooperation.

Further, the outer surface of the connecting end is provided with threads.

Furthermore, the outer surface of the pin shaft is provided with a wear-resistant coating, and the outer surface of the pin shaft is provided with an anti-skid coating.

Further, the precision of the positioning end is g6, and the precision of the positioning hole is H7.

Further, the connecting end has a dimension of M6, and the positioning hole has a dimension of phi 6.5.

Furthermore, the tool holder and the tool bar are made of hard alloy.

The utility model has the advantages and positive effects that:

1. due to the fact that the pin shaft is matched with the pin hole, matching precision can be improved, matching progress and matching stability of the tool shank and the tool bar are guaranteed, stability and accuracy of reaming work are guaranteed, the tool can be replaced conveniently, the tool shank only needs to be replaced after the tool bit is damaged or abraded, the tool bar does not need to be replaced, the cost of the tool is reduced, and materials are saved.

2. Because the hard alloy is adopted to replace a common alloy cutter, the connection rigidity is improved, the reaming precision can be improved at the same time through the matching of the pin shaft and the pin hole, the service life of the reamer is prolonged from 50 reamed holes to 500 reamed holes, and the service life is greatly prolonged.

3. Because the reaming hole is arranged, the cutter handle is only required to be replaced when the cutter is replaced, one cutter rod can be matched with the cutter handles of various specifications, the whole cutter does not need to be directly replaced, the cost of the cutter is reduced, and the overall adaptability is improved.

Drawings

FIG. 1 is an assembly view of the present invention;

FIG. 2 is a schematic view of a tool holder of the present invention;

fig. 3 is a schematic view of the tool bar of the present invention.

In the figure:

1. knife handle 2, knife bar 3 and knife head

4. Pin shaft 5, positioning end 6 and connecting end

7. Positioning hole 8, connecting hole 9 and pin hole

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-3:

the utility model provides an extension reamer combination, includes handle of a knife 1 and cutter arbor 2, 1 one end of handle of a knife sets up tool bit 3, the terminal surface center that 3 one end of tool bit were kept away from to handle of a knife 1 sets up round pin axle 4, round pin axle 4 includes location end 5 and link 6, link 6 connects handle of a knife 1 through location end 5, and location end 5 and the 6 junction of link set up the recess, 2 one end centers of cutter arbor set up pinhole 9, pinhole 9 includes locating hole 7 and connecting hole 8, connecting hole 8 sets up in pinhole 9 bottom, locating hole 7 sets up in pinhole 9 top, locating hole 7 and location end 5 transition fit, connecting hole 8 inboard sets up the screw thread, connecting hole 8 passes through screw thread and the 6 cooperations of link.

The outer surface of the connecting end 6 is provided with threads.

The outer surface of the pin shaft 4 is provided with a wear-resistant coating, and the outer surface of the pin shaft 4 is provided with an anti-slip coating.

The precision of the positioning end 5 is g6, and the precision of the positioning hole 7 is H7.

The size of the connecting end 6 is M6, and the size of the positioning hole 7 is phi 6.5.

The working process of the example is as follows:

during the use, insert pinhole 9 with the round pin axle 4 of handle of a knife 1 in, through accurate cooperation with link 6 screw in connecting hole 8 in, can effectively improve the cooperation precision, and guarantee the stability of structure and the rigidity of structure, and can cooperate the handle of a knife 1 of multiple model through pinhole 9, the cutter cost has been saved to the multiple tool bit 3 of need not dispose, after the cutter damages or wearing and tearing, directly take off handle of a knife 1, then more renew handle of a knife 1 just can, need not change together with cutter arbor 2, the use cost of cutter has been saved.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a lengthening reamer combination, includes handle of a knife (1) and cutter arbor (2), its characterized in that: handle of a knife (1) one end sets up tool bit (3), the terminal surface center that tool bit (3) one end was kept away from in handle of a knife (1) sets up round pin axle (4), round pin axle (4) are including location end (5) and link (6), link (6) are through location end (5) connection handle of a knife (1), location end (5) and link (6) junction set up the recess, cutter arbor (2) one end center sets up pinhole (9), pinhole (9) are including locating hole (7) and connecting hole (8), connecting hole (8) set up in pinhole (9) bottom, locating hole (7) set up in pinhole (9) top, locating hole (7) and location end (5) transition fit, connecting hole (8) inboard sets up the screw thread, connecting hole (8) are through screw thread and link (6) cooperation.

2. The extended reamer of claim 1 wherein: the outer surface of the connecting end (6) is provided with threads.

3. The extended reamer of claim 1 wherein: the outer surface of the pin shaft (4) is provided with a wear-resistant coating, and the outer surface of the pin shaft (4) is provided with an anti-skid coating.

4. The extended reamer of claim 1 wherein: the precision of the positioning end (5) is H7, and the precision of the positioning hole (7) is g 6.

5. The extended reamer of claim 1 wherein: the size of the connecting end (6) is M6, and the size of the positioning hole (7) is A6.5.

6. The extended reamer of claim 1 wherein: the knife handle (1) and the knife bar (2) are made of hard alloy.