CN209998747U

CN209998747U - inward-contracting type power knife holder

Info

Publication number: CN209998747U
Application number: CN201920538066.4U
Authority: CN
Inventors: 邝吉闯
Original assignee: Dongguan Kaist Transmission Technology Co Ltd
Current assignee: Dongguan Kaist Transmission Technology Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-01-31
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses an formula power blade holder that contracts, including blade holder body and transmission shaft, this blade holder body runs through and is equipped with the installation cavity, the transmission shaft passes through the bearing and installs in the installation cavity, the transmission shaft has bearing assembly section, presss from both sides a section of thick bamboo assembly section and nut assembly section, bearing assembly section and a section of thick bamboo installation position in the installation cavity, and this nut assembly section appears outside this body of blade holder through the section of thick bamboo assembly that presss from both sides of transmission shaft contracts in the installation cavity of locating the blade holder body, compare in the past the transmission shaft be used for assembling the part of pressing from both sides a section of thick bamboo and appear in this external structure of blade holder, can advance step and reduce the size of whole power blade holder for the overall structure of power blade holder is compacter, borrow this kind of lathe of power blade holder of installation can advance step and save the lathe space, has.

Description

inward-contracting type power knife holder

Technical Field

The utility model relates to a power blade holder field technique especially indicates kinds of draw-in power blade holders.

Background

The workpiece can not be milled or drilled on a numerical control machine tool, so that the problems of increased workpiece errors, low machining efficiency and the like are caused. In order to solve the problems, the functions of milling, drilling, tapping and the like of a workpiece are completed by the functional matching of a power tool apron on a power tool turret and a C shaft.

However, the ends of the spindle of the conventional power tool apron for mounting the clamping cylinder all extend out of the power tool apron, so that the overall size of the power tool apron is too large, and the structure of the power tool apron is not compact.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides retractable power blade holders, and its structural setting is reasonable, has solved effectively that power blade holder oversize in the past is not compact enough problem.

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

A retractable power knife holder comprises a knife holder body and a transmission shaft, wherein the knife holder body is provided with a installation cavity in a penetrating mode, the transmission shaft is installed in the installation cavity through a bearing, the transmission shaft is provided with a bearing assembling section, a clamping cylinder installation section and a nut assembling section, the bearing assembling section and the clamping cylinder installation section are located in the installation cavity, and the nut assembling section is exposed out of the knife holder body.

preferably, the mounting cavity has a th opening and a second opening, and the mounting cavity gradually narrows toward the second opening at the th opening.

it is preferable that the cartridge mounting section is located near the end of the opening, and the opening is provided with end cap.

the preferable scheme is that the bearing comprises a bearing and a second bearing, the bearing is arranged at the head end of the bearing assembling section, the second bearing is arranged at the tail end of the bearing assembling section, and the bearing assembling section is provided with a spacer between the bearing and the second bearing.

it is preferable that the end of the drive shaft has a mounting boss extending outwardly of the mounting cavity, the mounting boss being fitted with a coupling.

it is preferable that the cartridge mounting section has a recess for mounting the cartridge and the nut mounting section has a through hole, and the through hole and the recess are connected through.

it is preferable that the through hole is threaded with a nut for tightening the cartridge.

Compared with the prior art, the utility model has obvious advantage and beneficial effect, particularly speaking, can know by above-mentioned technical scheme that through locating the installation intracavity of blade holder body with contracting in the clamp section of thick bamboo installation section of transmission shaft, compare in the past the transmission shaft be used for the part of assembling the clamp section to show in this external structure of blade holder, can advance step reduce the size of whole power blade holder for the overall structure of power blade holder is compacter, borrow this kind of lathe of power blade holder of installation can advance step and save the lathe space, increased the effective stroke of lathe.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a cross-sectional view of a preferred embodiment of the present invention.

FIG. 2 is a sectional view of a tool holder body according to a preferred embodiment of the present invention.

Fig. 3 is a sectional view of a propeller shaft according to a preferred embodiment of the present invention.

The attached drawings indicate the following:

10. tool apron body 11 and mounting cavity

1101. th installation cavity 1102 and second installation cavity

1103. Third installation cavity 1104 and step positioning surface

1105. Second step positioning surface 111, th opening

112. Second opening 20, drive shaft

21. Bearing assembly 2101 th bearing assembly

2102. Second bearing assembly section 2103, fifth step locating surface

212. Mounting boss 213 and coupler

22. Clamping cylinder mounting section 2201 and fourth step positioning surface

221. Concave position 23 and nut assembling section

2301. Third step positioning surface 231, via hole

232. Nut 30 and bearing

31. th bearing 32, second bearing.

Detailed Description

Referring to fig. 1 to 3, which show the specific structure of the preferred embodiment of the present invention, kinds of inward-retracted power tool holders include a tool holder body 10 and a transmission shaft 20.

The tool apron body 10 is provided with a mounting cavity 11 in a penetrating way, and the transmission shaft 20 is mounted in the mounting cavity 11 through a bearing 30, wherein the transmission shaft 20 is provided with a bearing assembling section 21, a clamping cylinder mounting section 22 and a nut assembling section 23, the bearing assembling section 21 and the clamping cylinder mounting section 22 are located in the mounting cavity 11, and the nut assembling section 23 is exposed out of the tool apron body 10.

In this embodiment, the mounting cavity 11 has th openings 111 and second openings 112, and the mounting cavity 11 gradually decreases from the th opening 111 to the second opening 112, specifically, the mounting cavity 11 has th mounting cavity 1101, second mounting cavity 1102 and third mounting cavity 1103 which are sequentially arranged from th opening 111 to the second opening 112, and the three are sequentially communicated, and the inner diameter of the th mounting cavity 1101 is larger than the inner diameter of the second mounting cavity 1102, and the inner diameter of the second mounting cavity 1102 is larger than the inner diameter of the third mounting cavity 1103, so that the th step positioning surface 1104 is formed at the end of the th mounting cavity 1101, and the second step positioning surface 1105 is formed at the end of the second mounting cavity 1102, and the mounting cavity 11 is gradually decreased in structure, so that reverse turning is not needed during turning, and only one-way turning is needed to complete the molding of the cavity, and the manufacturing is simple.

Similarly, the outer diameters of the nut assembling section 23, the cartridge mounting section 22 and the bearing assembling section 21 of the transmission shaft 20 are gradually reduced, a third step positioning surface 2301 is formed at the tail end of the nut assembling section 23, a fourth step positioning surface 2201 is formed at the tail end of the cartridge mounting section 22, the bearing assembling section 21 has a th bearing assembling section 2101 with a larger design, a second bearing assembling section 2102 with a smaller design, and a fifth step positioning surface 2103 is formed at the head end of the second bearing assembling section 2102.

The cartridge mounting section 22 is located at end close to the th opening 111, the th opening 111 is provided with a end cover 113, specifically, the end cover 113 is mounted in the th mounting cavity 1101, the head end of the end cover 113 is limited by the third step positioning surface 2301, the tail end of the end cover 113 is limited by the th step positioning surface 1105, and the size of the whole power knife holder can be further reduced by mounting the end cover 113 in the th mounting cavity 1101.

The bearing 30 includes an -th bearing 31 and a second bearing 32, the -th bearing 31 is disposed at the head end of the bearing assembling section 21, the second bearing 32 is disposed at the tail end of the bearing assembling section 21, the bearing assembling section 21 is disposed with a spacer 211 between the -th bearing 31 and the second bearing 32, specifically, the -th bearing 31 is disposed corresponding to the -th bearing assembling section 2101, the second bearing 32 is disposed corresponding to the second bearing assembling section 2102, the spacer 211 is sleeved on the second bearing assembling section 2102, the head end of the spacer 211 is limited by a -th bearing 31 and a fifth step positioning surface 2103, the tail end of the spacer 211 is limited by the second bearing 32, the -th bearing 31 is disposed in the second mounting cavity 1102 and is limited between the fourth step positioning surface 2201 and the second step positioning surface 1105.

The end of the driving shaft 20 is extended outwardly of the mounting cavity 11 to have a mounting protrusion 212, the mounting protrusion 212 is assembled with the coupler 213, and the coupler 213 is detachably connected to the mounting protrusion 212, so that when the coupler 213 is damaged, it is easy to replace the coupler 213.

The cartridge mounting section 22 has a recessed portion 221 for mounting the cartridge, and the nut mounting section 23 has a through hole 231, the through hole 231 and the recessed portion 221 are connected through, and a nut 232 for fastening the cartridge is screwed into the through hole 231.

The utility model discloses a design focus is through in the installation cavity 11 of locating blade holder body 10 with the section of thick bamboo installation section 22 of pressing from both sides of transmission shaft 20 internal contraction, compare in the structure that the transmission shaft was used for assembling the part of pressing from both sides the section of thick bamboo in the past and appeared outside the blade holder body, can advance steps and reduce the size of whole power blade holder for the overall structure of power blade holder 10 is compacter, borrow this kind of lathe of installation power blade holder 10 can advance steps and save the lathe space, has increased the effective stroke of lathe.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

The utility model provides a kind of internal contraction formula power tool holder, including tool holder body (10) and transmission shaft (20), this tool holder body (10) is run through and is equipped with installation cavity (11), transmission shaft (20) are installed in installation cavity (11) through bearing (30), characterized in that, transmission shaft (20) have bearing assembly section (21), cartridge installation section (22) and nut assembly section (23), bearing assembly section (21) and cartridge installation section (22) are located installation cavity (11), this nut assembly section (23) expose outside tool holder body (10).
2. A retractable power tool holder as claimed in claim 1, wherein the mounting cavity (11) has a opening (111) and a second opening (112), the mounting cavity (11) is gradually narrowed from the opening (111) to the second opening (112).
3. A retractable power tool holder as claimed in claim 2, wherein the cartridge mounting section (22) is located near the end of the opening (111), and the opening (111) is provided with a end cap (113).
4. A retractable power knife holder as claimed in claim 1, wherein the bearing (30) includes a bearing (31) and a second bearing (32), the bearing (31) is disposed at the head end of the bearing assembly section (21), the second bearing (32) is disposed at the tail end of the bearing assembly section (21), and the bearing assembly section (21) is provided with a spacer (211) between the bearing (31) and the second bearing (32).
5. retractable power tool holder according to claim 1, wherein the drive shaft (20) has a distal end with a mounting protrusion (212) extending outwardly from the mounting cavity (11), the mounting protrusion (212) being fitted with a coupling (213).
6. retractable type power knife holder according to claim 1, wherein the cartridge mounting section (22) has a recessed position (221) for mounting the cartridge, and the nut mounting section (23) has a through hole (231), the through hole (231) and the recessed position (221) are connected through.
7. retractable power tool holder according to claim 6, wherein the through hole (231) is screwed with for fastening the nut (232) of the cartridge.