CN216938615U

CN216938615U - Milling head device

Info

Publication number: CN216938615U
Application number: CN202122706976.9U
Authority: CN
Inventors: 霍福权; 霍召龙
Original assignee: Jiangsu Mingyang Yujie Machinery Co ltd
Current assignee: Jiangsu Mingyang Yujie Machinery Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-07-12
Anticipated expiration: 2031-11-05

Abstract

The utility model relates to the technical field of machining, in particular to a milling head device which comprises an upper shell and a lower shell integrally formed with the upper shell, wherein a sleeve is arranged in the upper shell, a transmission shaft is arranged in the sleeve through a bearing, a driving gear is fixed at the bottom end of the transmission shaft, a transmission cutter shaft is arranged in the lower shell through a bearing, a driven gear is sleeved outside the middle part of the transmission cutter shaft, the driving gear is meshed with the driven gear, the left end of the transmission cutter shaft extends out of the lower shell, a mounting hole is formed in the middle part of the left end of the transmission cutter shaft, clamping grooves are respectively formed in two sides of the left end of the transmission cutter shaft and are communicated with the mounting hole, a cutter handle is inserted in the mounting hole, a blind way is formed in the middle part of the right end of the cutter handle, blind holes are respectively formed in two sides of the right end of the cutter handle and are communicated with the blind ways, two clamping blocks are embedded in the blind ways and are in sliding fit with the clamping blocks, and the two clamping blocks are connected through springs; the milling cutter has the advantages of simple structural design, convenient installation and disassembly of the milling cutter and high workpiece processing quality.

Description

Milling head device

Technical Field

The utility model relates to the technical field of machine tool machining, in particular to a milling head device.

Background

The milling head is an important component of a machine tool accessory, is mounted on a milling machine and is connected with a main shaft, and is one of the machine tool accessories for driving the milling cutter to rotate.

At present, most milling heads drive a cutter loosening rod to move through an oil cylinder, and then drive clamping jaws to loosen and clamp, so that the milling cutter is mounted and dismounted. The structure is complex in design, and the installation and the disassembly of the milling cutter require that an operator is matched with the oil cylinder, so that the operation is complicated; in addition, in the milling process, the phenomenon of slipping between the milling cutter and the clamping jaw can occur, and the processing quality of the workpiece is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the milling head device which is simple in structural design, convenient to install and disassemble and high in workpiece processing quality.

The technical scheme for realizing the purpose of the utility model is as follows: a milling head device comprises an upper shell and a lower shell which is integrally formed with the upper shell, wherein a sleeve is arranged in the upper shell, a transmission shaft is arranged in the sleeve through a bearing, a driving gear is fixed at the bottom end of the transmission shaft, a transmission cutter shaft is arranged in the lower shell through a bearing, a driven gear is sleeved outside the middle of the transmission cutter shaft, the driving gear is meshed with the driven gear, the left end of the transmission cutter shaft extends out of the lower shell, a mounting hole is formed in the middle of the left end of the transmission cutter shaft, clamping grooves are respectively formed in two sides of the left end of the transmission cutter shaft and are communicated with the mounting hole, a cutter handle is inserted into the mounting hole, a blind track is formed in the middle of the right end of the cutter handle, blind holes are respectively formed in two sides of the right end of the cutter handle and are communicated with the blind track, two clamping blocks are embedded in the blind track and are in sliding fit with the clamping blocks, the two clamping blocks are connected through a spring.

Furthermore, through holes are respectively formed in two sides of the left end of the transmission cutter shaft and communicated with the clamping grooves, and pressing pieces are installed in the through holes.

Further, the pressing piece comprises a sliding rod, the sliding rod is connected with the through hole in a sliding mode, two ends of the sliding rod respectively extend out of the through hole, a rod cap is installed at the end portion, far away from the knife handle, of the sliding rod, and a limiting block is installed at the end portion, close to the knife handle, of the sliding rod.

Further, the fixture block includes sliding part and joint portion, sliding part and joint portion integrated into one piece, sliding part and blind track sliding fit, joint portion and blind hole sliding fit.

Furthermore, two ends of the lower shell are respectively provided with a gland.

After the technical scheme is adopted, the utility model has the following positive effects:

(1) according to the milling cutter, the fixture block, the spring and the clamping groove are arranged, so that when the cutter handle is inserted into the mounting hole, the fixture block is pushed into the clamping groove under the elastic force of the spring, and the milling cutter and the transmission cutter shaft are mounted;

(2) according to the utility model, through the arrangement of the pressing piece, when the rod cap is pressed towards the transmission cutter shaft, the limiting block extrudes the clamping block, so that the spring is compressed until the clamping block retracts into the blind hole, and at the moment, the cutter handle is pulled out, so that the milling cutter and the transmission cutter shaft are disassembled;

(3) according to the utility model, the cutter handle is clamped with the transmission cutter shaft, so that the phenomenon that the milling cutter slips in the milling process is avoided, and the processing quality of a workpiece is improved.

Drawings

In order that the manner in which the present invention is made will be more readily and clearly understood, the utility model will be further described in detail in the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of portion A of FIG. 1;

FIG. 3 is a diagram illustrating a fixture block of the present invention;

FIG. 4 is a cross-sectional view of a drive arbor of the present invention;

fig. 5 is a cross-sectional view of the milling cutter of the present invention.

In the figure: the tool comprises an upper shell 1a, a lower shell 1b, a sleeve 2, a bearing 3, a transmission shaft 4, a driving gear 5a, a driven gear 5b, a transmission cutter shaft 6, a mounting hole 6a, a clamping groove 6b, a through hole 6c, a cutter handle 7, a blind channel 7a, a blind hole 7b, a clamping block 8, a sliding part 8a, a clamping part 8b, a spring 9, a pressing piece 10, a sliding rod 10a, a rod cap 10b, a limiting block 10c and a gland 11.

Detailed Description

As shown in fig. 1-5, a milling head device comprises an upper housing 1a and a lower housing 1b integrally formed with the upper housing 1a, a sleeve 2 is arranged in the upper housing 1a, a transmission shaft 4 is arranged in the sleeve 2 through a bearing 3, a driving gear 5a is fixed at the bottom end of the transmission shaft 4, a transmission knife shaft 6 is arranged in the lower housing 1b through the bearing 3, a driven gear 5b is sleeved outside the middle of the transmission knife shaft 6, the driving gear 5a and the driven gear 5b are engaged with each other, the left end of the transmission knife shaft 6 extends out of the lower housing 1b, a mounting hole 6a is arranged in the middle of the left end of the transmission knife shaft 6, clamping grooves 6b are respectively arranged on two sides of the left end of the transmission knife shaft 6, the clamping grooves 6b are communicated with the mounting hole 6a, a knife handle 7 is inserted in the mounting hole 6a, a blind channel 7a is arranged in the middle of the right end of the knife handle 7, blind channels 7b are respectively arranged on two sides of the right end of the knife handle 7, the blind hole 7b is communicated with the blind channel 7a, two clamping blocks 8 are embedded in the blind channel 7a, the blind channel 7a is in sliding fit with the clamping blocks 8, the two clamping blocks 8 are connected through a spring 9, and the spring 9 is in a compressed state; the clamping block 8 comprises a sliding portion 8a and a clamping portion 8b, the sliding portion 8a and the clamping portion 8b are integrally formed, the sliding portion 8a is in sliding fit with the blind channel 7a, the clamping portion 8b is in sliding fit with the blind hole 7b, the clamping portion 8b is matched with the clamping groove 6b, the width of the blind channel 7a is larger than that of the blind hole 7b, and therefore the clamping block 8 is prevented from being separated from the blind channel 7 a; through holes 6c are respectively formed in two sides of the left end of the transmission cutter shaft 6, the through holes 6c are communicated with the clamping grooves 6b, and pressing pieces 10 are installed in the through holes 6 c; the pressing piece 10 comprises a sliding rod 10a, the sliding rod 10a is connected with the through hole 6c in a sliding mode, two ends of the sliding rod 10a extend out of the through hole 6c respectively, a rod cap 10b is installed at the end portion, far away from the knife handle 7, of the sliding rod 10a, the rod cap 10b is convenient for an operator to press the sliding rod 10a, a limiting block 10c is installed at the end portion, close to the knife handle 7, of the sliding rod 10a, and the limiting block 10c is arranged to prevent the pressing piece 10 from being separated from the through hole 6 c; two ends of the lower shell 1b are respectively provided with a gland 11, and the arrangement of the glands 11 further fixes the transmission gear shaft 6.

When milling cutter installs, operating personnel aligns mounting hole 6a with handle of a knife 7, at the in-process of aiming at, fixture block 8 should align with pressing piece 10, then press fixture block 8 and make fixture block 8 return in blind hole 7b, and then insert mounting hole 6a with handle of a knife 7 in, when the right-hand member of handle of a knife 7 supported completely with mounting hole 6 a's inside wall, blind hole 7b aligns with draw-in groove 6b this moment, 8b of joint portion of fixture block 8 get into draw-in groove 6b under spring 9's elastic force effect, thereby realize milling cutter's installation. In the process that the clamping portion 8b of the clamping block 8 enters the clamping groove 6b, the clamping portion 8b continuously extrudes the limiting block 10c of the pressing piece 10, and then the sliding rod 10a slides in the through hole 6c until the limiting block 10c abuts against the inner wall of the clamping groove 6 b. When the milling head actually works, the rotation of a machine tool spindle (not shown in the figure) drives the transmission shaft 4 to rotate, the rotation of the transmission shaft 4 drives the transmission cutter shaft 6 to rotate through the mutual meshing of the driving gear 5a and the driven gear 5b, and the rotation of the transmission cutter shaft 6 drives the milling cutter to work. When the milling cutter is disassembled, an operator presses the rod cap 10b towards the transmission cutter shaft 6 to enable the sliding rod 10a to slide in the through hole 6c, and then the limiting block 10c is driven to extrude the clamping block 8, so that the spring 9 is compressed until the clamping block 8 retracts into the blind hole 7b, the cutter handle 7 can be pulled out at the moment, and the milling cutter is installed.

The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cutter head device, includes casing (1a) and lower casing (1b) with last casing (1a) integrated into one piece, be equipped with sleeve (2) in going up casing (1a), install transmission shaft (4) through bearing (3) in sleeve (2), the bottom mounting of transmission shaft (4) has driving gear (5a), install transmission arbor (6) through bearing (3) in casing (1b) down, the middle part overcoat of transmission arbor (6) has driven gear (5b), driving gear (5a) and driven gear (5b) intermeshing, its characterized in that: the left end of the transmission cutter shaft (6) extends out of the lower shell (1b), a mounting hole (6a) is formed in the middle of the left end of the transmission cutter shaft (6), clamping grooves (6b) are formed in the two sides of the left end of the transmission cutter shaft (6) respectively, the clamping grooves (6b) are communicated with the mounting hole (6a), a cutter handle (7) is inserted in the mounting hole (6a), blind channels (7a) are formed in the middle of the right end of the cutter handle (7), blind holes (7b) are formed in the two sides of the right end of the cutter handle (7) respectively, the blind holes (7b) are communicated with the blind channels (7a), two clamping blocks (8) are embedded in the blind channels (7a), the blind channels (7a) are in sliding fit with the clamping blocks (8), and the clamping blocks (8) are connected through springs (9).

2. A milling head assembly according to claim 1, wherein: through holes (6c) are respectively formed in two sides of the left end of the transmission cutter shaft (6), the through holes (6c) are communicated with the clamping grooves (6b), and pressing pieces (10) are installed in the through holes (6 c).

3. A milling head assembly according to claim 2, wherein: the pressing piece (10) comprises a sliding rod (10a), the sliding rod (10a) is connected with the through hole (6c) in a sliding mode, two ends of the sliding rod (10a) extend out of the through hole (6c) respectively, a rod cap (10b) is installed at the end portion, far away from the knife handle (7), of the sliding rod (10a), and a limiting block (10c) is installed at the end portion, close to the knife handle (7), of the sliding rod (10 a).

4. A milling head assembly according to claim 1, wherein: fixture block (8) include sliding part (8a) and joint portion (8b), sliding part (8a) and joint portion (8b) integrated into one piece, sliding part (8a) and blind track (7a) sliding fit, joint portion (8b) and blind hole (7b) sliding fit.

5. A milling head assembly according to any one of claims 1 to 4, wherein: two ends of the lower shell (1b) are respectively provided with a gland (11).