CN214920686U

CN214920686U - Adjustable reverse scraping boring cutter component for machine

Info

Publication number: CN214920686U
Application number: CN202121086439.2U
Authority: CN
Inventors: 戚亚飞; 张利贤; 任建军; 解威; 刘春霞
Original assignee: Zhenjiang Zhongchuan Rili Shipbuilding Machinery Co ltd
Current assignee: Zhenjiang Zhongchuan Rili Shipbuilding Machinery Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-11-30
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses a machine is with adjustable anti-boring cutter subassembly of scraping, include first cutter arbor, second cutter arbor, closing device and anti-boring cutter head of scraping, the square handle of first cutter arbor one end is connected with movable magnetic drilling machine blade holder, and the first cutter arbor other end is the U-shaped fork, and U-shaped fork is stretched into to second cutter arbor one end, through coupling mechanism and U-shaped fork fixed connection. The pressing device is arranged on the middle part of the second cutter bar, the other end of the second cutter bar penetrates through the workpiece hole, the end face of the fixing screw presses the middle part of the reverse scraping boring cutter head which penetrates through the other end of the second cutter bar, and the cutting edge of the reverse scraping boring cutter head faces to a surface to be machined, which needs to be scraped. The utility model discloses simple structure, convenient operation, the commonality is good, greatly reduced the anti-intensity of labour who scrapes processing annular counter bore, improved anti-machining efficiency of scraping, is showing and is improving the machining precision of anti-scraping processing annular counter bore.

Description

Adjustable reverse scraping boring cutter component for machine

Technical Field

The utility model belongs to the technical field of metal cutting processing cutter, concretely relates to install adjustable anti-boring cutter subassembly of scraping on magnetic drilling machine blade holder.

Background

The upper cover body and the lower box body butt joint plane of the box body type component are respectively provided with an epitaxial butt joint step ring from top to bottom, a plurality of through holes arranged at intervals need to be drilled on the lower box body step ring, and then the back of each through hole needs to be scraped with a manual reverse scraping boring cutter to form an annular counter bore so as to install a gasket. The existing manual reverse scraping boring cutter only comprises a cutter bar, an adjusting block, a boring cutter head and a fastening screw, when the manual reverse scraping boring cutter is used, the reverse scraping boring cutter head is arranged at one end of the cutter bar and fastened by the fastening screw, then the other end of the cutter bar penetrates through a through hole from bottom to top and then is installed in the adjusting block, the boring cutter head is lifted by adjusting the position of the adjusting block, a cutting edge of the boring cutter head is abutted against a step ring of a lower box body, a square hole in the middle of a reamer handle is sleeved on a square handle at the other end of the cutter bar, the reamer handle is manually rotated and tightly pressed against the adjusting block, and an edge of the boring cutter head transversely arranged at one end of the cutter bar reversely scrapes an annular counter bore of the step ring of the lower box body along with the rotation of the reamer handle. The disadvantage is that the boring can only be done manually, and the common machine tool is difficult to process. The time consumed by manually scraping the annular counter bore is several times that of processing by using a common machine tool, the work efficiency is very low, the processing wastes time and labor, the reverse scraping cutting force generated by manually rotating the reamer handle is not uniform, the flatness and the surface roughness of the annular counter bore are both very low, the processing quality of the annular counter bore is seriously influenced, and therefore the assembly quality of the box body is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a boring cutter subassembly is scraped to machine adjustable anti-turning, improves the step and circles anti-work efficiency and the machining precision of scraping of the annular counter bore at the through-hole back.

The utility model discloses a following technical scheme realizes:

an adjustable reverse scraping boring cutter component for a machine comprises a first cutter bar, a second cutter bar, a pressing device and a reverse scraping boring cutter head, wherein one end of the first cutter bar is a square handle used for being connected with a movable magnetic drilling machine cutter holder, the other end of the first cutter bar is a U-shaped fork, one end of the second cutter bar extends into the U-shaped fork, and the second cutter bar is fixedly connected with the U-shaped fork through a connecting mechanism; the pressing device is arranged on the middle part of the second cutter bar, the other end of the second cutter bar penetrates through the workpiece hole, the reverse scraping boring cutter head transversely penetrates through the other end of the second cutter bar, the end face of a fixing screw screwed in the other end of the second cutter bar presses the middle part of the reverse scraping boring cutter head, and the cutting edge of the reverse scraping boring cutter head faces to-be-machined surface to be scraped.

The object of the invention is further achieved by the following technical measures.

Furthermore, the connecting mechanism comprises a hinged bolt, a nut and a plurality of gaskets, the hinged bolt transversely penetrates through a hinged hole at the fork head end of the U-shaped fork, the middle part of the hinged bolt transversely penetrates through a hinged hole at one end of the second cutter bar and a plurality of gasket holes, one end of the hinged bolt is fastened through the nut, and the gaskets are respectively embedded between the outer side surface at one end of the second cutter bar and the inner side surface of the corresponding U-shaped fork, so that the first cutter bar and the second cutter bar are coaxial. The distance H between the outer side surface of one end of the second cutter bar and the corresponding inner side surface of the U-shaped fork is in clearance fit with the sum T of the thicknesses of the washers.

Furthermore, closing device closes with the middle part external screw thread of second cutter arbor soon including adjusting a section of thick bamboo and bearing, adjusts a section of thick bamboo internal thread hole and is connected, and the bearing is located and adjusts between a section of thick bamboo one end and the lateral surface of being processed the work piece. The bearing is a thrust bearing, a seat ring of the thrust bearing is embedded into a counter bore of the end face of the adjacent adjusting cylinder, an inner hole of a shaft ring of the thrust bearing is in transition fit with an excircle of the second cutter bar at a corresponding position, and the outer side of the shaft ring of the thrust bearing is abutted against the outer side face of a processed workpiece.

The utility model has the advantages of being simple in structure and convenient in operation, first cutter arbor and second cutter arbor are through the hinge system bolt fixed connection that violently passes the U-shaped fork to improve the axiality of connecting two back cutter arbor through the packing ring, improved the utility model discloses a connection precision. The reverse scraping processing requirements of different annular counter bores can be met only by replacing the second cutter bars with different lengths, and the universality is good. The adjusting cylinder is screwed down in the reverse scraping process, so that the cutting edge of the boring cutter head can feed and reverse scrape to cut and complete the reverse scraping process of the annular counter bore. The utility model discloses greatly reduced the anti-intensity of labour who scrapes processing annular counter bore, improved anti-machining efficiency of scraping, it improves the machining precision of anti-processing annular counter bore of scraping to show.

The advantages and features of the invention will be illustrated and explained by the following non-restrictive description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings.

Drawings

Fig. 1 is a structural view of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

In the description of the present invention, terms indicating orientation or position such as "upper", "lower", "inner", "outer", "left", "right", etc., are based on the orientation shown in the drawings only for the purpose of simplifying the description, and do not indicate or imply that the present invention must have a specific orientation or position.

As shown in fig. 1, the utility model discloses a first cutter arbor 1, second cutter arbor 2, closing device 3 and anti-boring tool bit 4 of scraping, the square handle 11 that is used for being connected with movable magnetic drilling machine blade holder is held to 1 left end of first cutter arbor, and the right-hand member is U-shaped fork 12, and U-shaped fork 12 is stretched into to 2 left ends of second cutter arbor, through

coupling mechanism

5 and 12 fixed connection of U-shaped fork. The connecting mechanism 5 comprises a hinged bolt 51, a nut 52 and 4 washers 53, the hinged bolt 51 transversely penetrates through a fork head end hinged hole 121 of the U-shaped fork 12, the middle part of the hinged bolt 51 transversely penetrates through 4 gasket holes 531 of the

hinged hole

21 and 2 groups of the hinged holes 21 at the left end of the second cutter bar 2, the lower end of the hinged bolt 51 is fastened through the nut 52, and the 2 washers 53 are respectively embedded between the outer side surface of the left end of the second cutter bar 2 and the inner side surface of the corresponding U-shaped fork, and the distance H between the outer side surface of the left end of the second cutter bar 2 and the inner side surface of the corresponding U-shaped fork is in clearance fit with the sum T of the thicknesses of the 2 gaskets 53, so that the first cutter bar 1 is coaxial with the second cutter bar 2, and the precision of the annular counter bore 103 formed by reverse scraping is improved.

The pressing device 3 is arranged in the middle of the second cutter bar 2 and comprises an adjusting cylinder 31 and a bearing 32, an inner threaded hole of the adjusting cylinder is connected with the middle outer thread 21 of the second cutter bar 2 in a screwing mode, and the bearing 32 is located between the right end of the adjusting cylinder 31 and the outer side face of the processed workpiece 10. The bearing 32 is a thrust bearing, the left end of a seat ring 321 of the thrust bearing is embedded into a counter bore 312 of the end face of the adjacent adjusting cylinder, a shaft ring inner hole 323 of the thrust bearing is in transition fit with the excircle of the second cutter bar 2 at the corresponding position, and the outer side of the shaft ring 322 of the thrust bearing is abutted against the outer side face of the processed workpiece 10.

The utility model discloses an installation is as follows, at first on the 2 right-hand members of second cutter arbor dress anti-boring cutter head 4 of scraping, fasten with fastening screw 41, then pass second cutter arbor 2 left end from bottom to top and install regulation section of thick bamboo 31 and bearing 32 after being processed work piece through-hole 102 again, stretch into first cutter arbor 1 right-hand member U-shaped fork 12 with 2 left ends of second cutter arbor after that, cross the reaming hole 121 and the 4 packing rings 53 of 2 groups altogether of the 2 left ends of second cutter arbor with reaming bolt 51 again, its lower extreme passes through nut 52 and fastens. Fix the square handle 11 of 1 right-hand members of first cutter arbor in movable magnetic drilling machine blade holder at last, accomplish the utility model discloses an installation.

During the use, rotate earlier and adjust a section of thick bamboo 31 for adjust a section of thick bamboo 31 and promote bearing 32 and move down, thereby make the cutting edge of scraping boring cutter head 4 anti-shift and accomplish the tool setting, start movable magnetic drilling machine after that, drive the rotation of second cutter arbor 2 through first cutter arbor 1, the horizontal anti-annular counter bore 103 that scrapes on the boring cutter head 4 cutting edge of scraping by processing work piece step circle 101 of second cutter arbor 2 right-hand member.

The utility model discloses except using movable magnetic drill, also can be used to lathe such as radial drill, vertical drill after only needing to change the first cutter arbor 1 of corresponding handle of a knife.

In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. The utility model provides a machine is with adjustable anti-boring cutter subassembly of scraping which characterized in that: the movable magnetic drilling machine tool rest comprises a first tool bar, a second tool bar, a pressing device and a reverse scraping and boring tool bit, wherein one end of the first tool bar is a square handle used for being connected with the movable magnetic drilling machine tool rest, the other end of the first tool bar is a U-shaped fork, and one end of the second tool bar extends into the U-shaped fork and is fixedly connected with the U-shaped fork through a connecting mechanism; the pressing device is arranged on the middle part of the second cutter bar, the other end of the second cutter bar penetrates through the workpiece hole, the reverse scraping boring cutter head transversely penetrates through the other end of the second cutter bar, the end face of a fixing screw screwed in the other end of the second cutter bar presses the middle part of the reverse scraping boring cutter head, and the cutting edge of the reverse scraping boring cutter head faces to-be-machined surface to be scraped.

2. The machine-used adjustable reverse scraping boring cutter assembly of claim 1 further characterized by: the connecting mechanism comprises a hinged bolt, a nut and a plurality of gaskets, the hinged bolt transversely penetrates through a hinging hole at the fork head end of the U-shaped fork, the middle part of the hinged bolt transversely penetrates through the hinging hole at one end of the second cutter bar and the gasket holes, one end of the hinged bolt is fastened through the nuts, and the gaskets are respectively embedded between the outer side surface at one end of the second cutter bar and the corresponding inner side surface of the U-shaped fork, so that the first cutter bar is coaxial with the second cutter bar.

3. The machine-used adjustable reverse scraping boring cutter assembly of claim 1 further characterized by: the distance H between the outer side surface of one end of the second cutter bar and the corresponding inner side surface of the U-shaped fork is in clearance fit with the sum T of the thicknesses of the washers.

4. The machine-used adjustable reverse scraping boring cutter assembly of claim 1 further characterized by: the pressing device comprises an adjusting cylinder and a bearing, an inner threaded hole of the adjusting cylinder is connected with the outer thread of the middle part of the second cutter bar in a screwing mode, and the bearing is located between one end of the adjusting cylinder and the outer side face of the processed workpiece.

5. The machine-used adjustable reverse scraping boring cutter assembly of claim 4 further characterized by: the bearing is a thrust bearing, a seat ring of the thrust bearing is embedded into a counter bore of the end face of the adjacent adjusting cylinder, an inner hole of a shaft ring of the thrust bearing is in transition fit with an excircle of the second cutter bar at a corresponding position, and the outer side of the shaft ring of the thrust bearing is abutted against the outer side face of a processed workpiece.