CN216028345U

CN216028345U - Improved T-shaped slot milling cutter capable of maintaining high machining precision

Info

Publication number: CN216028345U
Application number: CN202121898759.8U
Authority: CN
Inventors: 李安和
Original assignee: Shenzhen Hechangsheng Technology Co ltd
Current assignee: Shenzhen Hechangsheng Technology Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-03-15
Anticipated expiration: 2031-08-13

Abstract

The utility model relates to the technical field of T-shaped slot milling cutters, and discloses an improved T-shaped slot milling cutter capable of maintaining high machining precision, which comprises a cutter holder, wherein the lower end of the cutter holder is fixedly connected with a cutter bar, the other end of the cutter bar is provided with a supporting disc, one side of the supporting disc, far away from the cutter bar, is connected with a cutter, and the supporting disc is connected with the cutter bar through a locking mechanism for connection; the mechanism of locking a position includes the backup pad, and the backup pad is fixed to be cup jointed on the pole wall of cutter arbor, and the lower extreme of backup pad has reset assembly about cutter arbor symmetric connection, and reset assembly's the other end articulates there is the couple, and the upper end of supporting disk has the bracing piece about cutter arbor symmetric connection, and the cover is equipped with the support ring on the bracing piece, and support ring fixed connection is connected with solid fixed ring on the bracing piece on the pole wall of cutter arbor. The utility model can conveniently replace the worn cutter, maintains the high processing precision of the T-shaped slot milling cutter, only replaces the cutter part, does not need to replace the whole milling cutter, and reduces the maintenance cost.

Description

Improved T-shaped slot milling cutter capable of maintaining high machining precision

Technical Field

The utility model relates to the technical field of T-shaped slot milling cutters, in particular to an improved T-shaped slot milling cutter capable of maintaining high machining precision.

Background

The T-shaped groove processing milling cutter is a special tool for processing the T-shaped groove, and after the straight groove is milled, the T-shaped groove with the required precision can be milled at one time. However, as the service life increases, the cutter head part of the milling cutter is worn due to long-time contact with a metal workpiece, so that the machining precision of the milling cutter is reduced, the whole milling cutter must be replaced at the moment, and the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the processing precision of a milling cutter is reduced because the cutter head part of the milling cutter is worn due to long-time contact with a metal workpiece along with the increase of the service time in the prior art, the whole milling cutter needs to be replaced at the moment, and the maintenance cost is increased, and provides an improved T-shaped slot milling cutter capable of maintaining high processing precision.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an improved T-shaped groove milling cutter capable of maintaining high machining precision comprises a cutter holder, wherein a cutter bar is fixedly connected to the lower end of the cutter holder, a supporting disc is arranged at the other end of the cutter bar, a cutter is connected to one side, away from the cutter bar, of the supporting disc, and the supporting disc is connected with the cutter bar through a locking mechanism for connection;

the mechanism of being locked includes the backup pad, the backup pad is fixed to be cup jointed on the pole wall of cutter arbor, the lower extreme of backup pad has reset assembly about cutter arbor symmetric connection, reset assembly's the other end articulates there is the couple, the upper end of supporting disk has the bracing piece about cutter arbor symmetric connection, the cover is equipped with the support ring on the bracing piece, and support ring fixed connection is on the pole wall of cutter arbor, be connected with solid fixed ring on the bracing piece, the couple hookup is on solid fixed ring that corresponds.

Preferably, the reset assembly comprises a reset tube with the upper end sealed, the reset tube is fixedly connected to the lower end of the supporting plate, a spring is connected to the top of the inner tube of the reset tube, a reset rod is fixedly connected to the other end of the spring, and one end, far away from the spring, of the reset rod penetrates through the lower end pipe orifice of the reset tube and is hinged to the corresponding hook.

Preferably, the inner ring wall of the support ring is provided with four support grooves which are annularly and uniformly arranged on the center of the support ring, rolling balls are arranged in the support grooves, the balls pass through the notches of the support grooves, and the balls are connected to the rod wall of the support rod in a rolling manner.

Preferably, the wall of the support rod near the lower end is connected with the upper end of the support disk through four reinforcing blocks arranged annularly.

Preferably, the upper end of the cutter holder is provided with a stepped groove for connection.

Preferably, the rod wall of the reset rod close to one end of the spring is symmetrically connected with sliding blocks, sliding grooves are formed in the inner pipe wall of the reset pipe in the vertical direction corresponding to the sliding blocks, and the sliding blocks are connected in the corresponding sliding grooves in a sliding mode.

Compared with the prior art, the utility model provides an improved T-shaped slot milling cutter capable of maintaining high processing precision, which has the following beneficial effects:

this can maintain high machining precision's improved generation T type slot milling cutter through setting up the locking mechanism, when the cutter takes place wearing and tearing along with the increase of live time and influences the machining precision, carries out convenient change to the cutter of wearing and tearing, has maintained T type slot milling cutter's high machining precision, only changes the cutter part moreover, need not to change whole milling cutter, has reduced the maintenance cost.

The parts which are not involved in the device are the same as or can be realized by adopting the prior art, the worn cutter is conveniently replaced, the high processing precision of the T-shaped slot milling cutter is maintained, only the cutter part is replaced, the whole milling cutter is not required to be replaced, and the maintenance cost is reduced.

Drawings

Fig. 1 is a schematic view of an improved T-slot milling cutter according to the present invention, which can maintain high machining accuracy;

FIG. 2 is a schematic structural diagram of an improved T-slot milling cutter according to the present invention, which can maintain high machining accuracy;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged view of a portion B in fig. 2.

In the figure: 1. a tool apron; 2. a cutter bar; 3. a support disc; 4. a cutter; 5. a support plate; 6. hooking; 7. a support bar; 8. a support ring; 9. a fixing ring; 10. a reset tube; 11. a spring; 12. a reset lever; 13. a support groove; 14. a ball bearing; 15. a reinforcing block; 16. a stepped groove; 17. a slider; 18. a chute.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the 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, should not be construed as limiting the present invention.

Referring to fig. 1-4, an improved T-slot milling cutter capable of maintaining high machining accuracy includes a cutter holder 1, a cutter bar 2 fixedly connected to a lower end of the cutter holder 1, a support plate 3 disposed at an opposite end of the cutter bar 2, a cutter 4 connected to a side of the support plate 3 away from the cutter bar 2, and a locking mechanism for connecting the support plate 3 to the cutter bar 2;

the locking mechanism comprises a supporting plate 5, the supporting plate 5 is fixedly sleeved on the rod wall of the cutter bar 2, the lower end of the supporting plate 5 is symmetrically connected with a reset component relative to the cutter bar 2, the other end of the reset component is hinged with a hook 6, the upper end of a supporting plate 3 is symmetrically connected with a supporting rod 7 relative to the cutter bar 2, the supporting rod 7 is sleeved with a supporting ring 8, the supporting ring 8 is fixedly connected on the rod wall of the cutter bar 2, the supporting rod 7 is connected with a fixing ring 9, the hook 6 is hooked on the corresponding fixing ring 9, when the cutter 4 is worn along with the increase of the using time to influence the processing precision, downward tensile force is applied to the hook 6, the hook is taken down from the fixing ring while the reset component is deformed, then the downward tensile force is applied to the supporting plate, the supporting plate drives the supporting rod 7 and the fixing ring 9 to slide downwards from the supporting ring 8, and then two supporting rods 7 on the supporting plate 3 of a new cutter 4 are inserted into the two supporting rings 8, after two couple 6 hook two solid fixed ring 9 afterwards, loosen couple 6, under reset assembly's the power effect that resets, ascending pulling force is applyed to two solid fixed ring 9 to two couple 6, and two support rings 8 of deuterogamying prevent that cutter 4 from taking place to rotate, carries out convenient change to worn and torn cutter 4, has maintained T type groove milling cutter's high machining precision, only changes the cutter part moreover, need not to change whole milling cutter, has reduced the maintenance cost.

Reset assembly includes the sealed reset tube 10 that sets up in upper end, reset tube 10 fixed connection is at the lower extreme of backup pad 5, the inner tube top of reset tube 10 is connected with spring 11, spring 11's other end fixedly connected with release link 12, the one end that spring 11 was kept away from to release link 12 passes the lower extreme mouth of pipe of reset tube 10 and articulates with corresponding couple 6 mutually, when applying decurrent pulling force to couple 6, couple 6 applys decurrent pulling force to release link 12, make release link 12 exert pulling force to spring 11 in the gliding while in reset tube 10, make spring 11 take place deformation, when couple 6 loses the pulling force, the spring 11 of deformation drives release link 12 and resets.

The inner ring wall of the support ring 8 is provided with four support grooves 13 which are annularly, uniformly and equidistantly arranged by taking the support rod 7 as a center, rolling balls 14 are arranged in the support grooves 13, the balls 14 penetrate through the notches of the support grooves 13, the balls 14 are connected to the rod wall of the support rod 7 in a rolling manner, when the support rod 7 moves in the support ring 8, the balls 14 are driven to roll, and the friction resistance of the support rod 7 during movement in the support ring 8 is reduced.

The bracing piece 7 is connected with the upper end of supporting disk 3 through four stiffeners 15 that are the annular setting on being close to the pole wall of lower extreme position, has improved the structural strength between bracing piece 7 and the supporting disk 3.

The upper end of the tool apron 1 is provided with a stepped groove 16 for connection, and when the T-shaped groove milling cutter is connected with a connecting device.

The rod wall of the reset rod 12 close to one end of the spring 11 is symmetrically connected with sliding blocks 17, sliding grooves 18 are formed in the inner tube wall of the reset tube 10 in the vertical direction corresponding to the sliding blocks 17, the sliding blocks 17 are connected in the corresponding sliding grooves 18 in a sliding mode, when the reset rod 12 slides in the reset tube 10, the sliding blocks 17 are driven to slide synchronously in the sliding grooves 18, and the reset rod 12 is prevented from being separated from the reset tube 10.

In the utility model, when the cutter 4 is worn along with the increase of the service time to influence the processing precision, a downward pulling force is applied to the hook 6, so that the hook is taken down from the fixing ring while the reset component is deformed, then the downward pulling force is applied to the supporting disk, the supporting disk drives the supporting rod 7 and the fixing ring 9 to slide downwards from the supporting rings 8, then the two supporting rods 7 on the supporting disk 3 with a new cutter 4 are inserted into the two supporting rings 8, after the two hooks 6 hook the two fixing rings 9, the hooks 6 are loosened, under the action of the resetting force of the reset component, the two hooks 6 apply an upward pulling force to the two fixing rings 9, the cutter 4 is prevented from rotating by matching with the two supporting rings 8, the worn cutter 4 is conveniently replaced, the high processing precision of the T-shaped slot milling cutter is maintained, only the cutter part is replaced, and the whole milling cutter does not need to be replaced, the maintenance cost is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The improved T-shaped groove milling cutter capable of maintaining high machining precision comprises a cutter holder (1) and is characterized in that a cutter bar (2) is fixedly connected to the lower end of the cutter holder (1), a supporting disc (3) is arranged at the other end of the cutter bar (2), a cutter (4) is connected to one side, away from the cutter bar (2), of the supporting disc (3), and the supporting disc (3) is connected with the cutter bar (2) through a locking mechanism for connection;

the mechanism is located to lock includes annular backup pad (5), backup pad (5) are fixed cup joints on the pole wall of cutter arbor (2), the lower extreme of backup pad (5) has the subassembly that resets about cutter arbor (2) symmetric connection, the other end of subassembly that resets articulates has couple (6), the upper end of supporting disk (3) has bracing piece (7) about cutter arbor (2) symmetric connection, the cover is equipped with support ring (8) on bracing piece (7), and support ring (8) fixed connection is on the pole wall of cutter arbor (2), be connected with solid fixed ring (9) on bracing piece (7), couple (6) hookup is on solid fixed ring (9) that corresponds.

2. The improved T-slot milling cutter capable of maintaining high processing precision according to claim 1, wherein the reset assembly comprises a reset tube (10) with an upper end hermetically arranged, the reset tube (10) is fixedly connected to the lower end of the support plate (5), a spring (11) is connected to the inner tube top of the reset tube (10), a reset rod (12) is fixedly connected to the other end of the spring (11), and one end, far away from the spring (11), of the reset rod (12) penetrates through the lower end pipe orifice of the reset tube (10) and is hinged to the corresponding hook (6).

3. The improved T-slot milling cutter capable of maintaining high processing precision according to claim 1, wherein four supporting grooves (13) are uniformly and equidistantly annularly formed on the inner annular wall of the supporting ring (8) by centering on the supporting rod (7), rolling balls (14) are arranged in the supporting grooves (13), the rolling balls (14) pass through the notches of the supporting grooves (13), and the rolling balls (14) are connected to the rod wall of the supporting rod (7) in a rolling manner.

4. An improved T-slot milling cutter maintaining high machining accuracy as claimed in claim 1, characterized in that the wall of the support bar (7) near the lower end is connected to the upper end of the support disc (3) by four annularly arranged reinforcing blocks (15).

5. The improved T-slot milling cutter capable of maintaining high machining accuracy as claimed in claim 1, wherein the upper end of the tool holder (1) is provided with a stepped slot (16) for connection.

6. The improved T-slot milling cutter capable of maintaining high processing precision according to claim 2, wherein the rod wall of the reset rod (12) near one end of the spring (11) is symmetrically connected with sliding blocks (17), sliding grooves (18) are formed in the inner pipe wall of the reset pipe (10) along the vertical direction corresponding to the sliding blocks (17), and the sliding blocks (17) are slidably connected in the corresponding sliding grooves (18).