TWM465237U - Brake device of power tool holder - Google Patents

Description

Brake device for power knife seat

The present invention relates to a power tool holder, and more particularly to a brake device for a power tool holder that can perform brake positioning on the tool holder body, thereby enabling the cutter shaft to stably perform cutting operations.

Referring to FIG. 1 , there is a power tool holder 10 , which mainly includes a fixing base 11 , a seat body 12 whose shaft is disposed on the fixing seat 11 and can be rotationally adjusted to an angular position, and a spindle whose longitudinal axis is disposed inside the seat body 12 . a gear set 13, a plurality of cutter shafts 14 that are sleeved on the respective side faces of the seat body 12 in a lateral direction, a first motor 15 that is disposed on the fixed seat 11 to drive the main shaft gear set 13 to operate, and a first motor The second seat 16 of the fixed seat 11 can drive the entire seat body 12 to rotate. The main shaft gear set 13 extends into the seat body 12 in the longitudinal direction, and includes a main shaft 131 and a plurality of active helical gears 132 disposed on the main shaft 131. Each of the cutter shafts 14 extends into the interior of the seat body 12 in a lateral direction, and a driven helical gear 141 that is in meshing engagement with the driving helical gear 132 is disposed at a middle portion thereof, and an extended tool holder is disposed at each end thereof. The mounting head 142 of each type of machining tool (not shown) can be mounted on the outer side of the body 12, and the seat body 12 can be rotated by the second motor 16 to rotate to the desired angular position of the operator. The main shaft gear set 13 is subjected to the When the drive of the motor 15 is driven, the cutter shafts 14 can be driven to operate, thereby allowing the cutters mounted on the outer ends of the cutter shafts 14 to perform various cutting operations on the workpiece.

The above-described power tool holder 10 structure can rotate the tool holder body 12 to change the angular position, and the cutter shaft 14 can perform the cutting work. However, there are still disadvantages in the use of the tool holder 10, and the conventional power tool holder 10 is mainly utilized. The two motors 16 drive the entire seat body 12 to rotate. When the seat body 12 is rotated to the desired angular position of the operator, no positioning member fixes the seat body 12, so when the tool shaft 14 is facing the workpiece When the cutting is performed, the cutting stress generated by the cutting is directly transmitted to the holder body 12 through the cutter shaft 14, causing the entire seat body 12 to generate a shaking vibration. When the workpiece is processed in such a non-fixed state, the cutter shaft 14 is processed. The installed tool is prone to the situation of the vibrating knife, and the entire cutting state appears to be quite unstable, resulting in a decrease in machining accuracy.

Therefore, the present invention aims to provide a brake device for a power tool holder that can brake the tool holder body so that the tool shaft can stably achieve the cutting effect.

Therefore, the present invention provides a brake device for a power tool holder, comprising a body unit, a knife base unit and a brake unit, wherein: the seat unit comprises a fixing base; the knife base unit comprises a knife having a shaft disposed on the fixed seat a seat body, a main shaft gear set in the body of the tool holder, a plurality of cutter shafts transversely disposed at a side of the seat body, and a first motor disposed on the fixed seat to drive the rotation of the main shaft gear set, And a second motor disposed on the fixed seat to drive the rotation of the seat body, the spindle gear set is provided a plurality of active helical gears are disposed, each of the cutter shafts extending into the seat body is provided with a driven helical gear that is meshed with the active helical gear; the brake unit includes a brake disk disposed on the seat body, and a A brake mechanism is provided on the fixed seat for clamping and positioning the brake disc.

The utility model has the beneficial effects that the brake mechanism is used for clamping and positioning the brake disc fixed on the holder body, so that the holder body can be fixed at a predetermined angular position, thereby enabling the cutter shaft to stably perform the cutting action.

20‧‧‧ seat unit

21‧‧‧ Fixed seat

211‧‧‧floor

212‧‧‧ top board

213‧‧‧Rotating space

30‧‧‧Knife unit

31‧‧‧Knife body

32‧‧‧Spindle gear set

321‧‧‧ Spindle

322‧‧‧Active helical gear

33‧‧‧Cutter shaft

331‧‧‧ driven shaft

332‧‧‧ driven helical gear

333‧‧‧Installation head

34‧‧‧First motor

35‧‧‧second motor

40‧‧‧ brake unit

41‧‧‧ brake disc

42‧‧‧ brake mechanism

421‧‧‧ drive cylinder

422‧‧‧Brakes to make pieces

423‧‧‧ gap

Other features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the drawings. FIG. 1 is an exploded perspective view of a conventional power tool holder; FIG. 2 is a brake of the present power tool holder. A combined perspective view of a preferred embodiment of the device, the present invention includes a body unit, a tool holder unit and a brake unit. The tool holder unit includes a seat body and a plurality of cutter shafts. The brake unit includes a brake disc and a brake. 3 is an exploded perspective view of the above preferred embodiment; FIG. 4 is a combination view of the above preferred embodiment, illustrating a situation in which the brake mechanism has not been actuated and the seat body is movable to adjust the rotation angle in a general state; Fig. 5 is an operation diagram of the above preferred embodiment, illustrating the case where the brake mechanism is in pressure contact with the brake disc, thereby fixing the entire holder body.

Referring to FIG. 2 and FIG. 3, in a preferred embodiment, the brake device of the power tool seat of the present invention mainly comprises a body unit 20 and a seat unit. 30 and a brake unit 40, and then the constituent members and combined spatial patterns of the above units are detailed later.

The base unit 20 includes a bottom plate 211 integrally extending from the bottom of the fixed seat 21, and a top plate 212 is disposed above the fixed seat 21, and a bottom plate 211 and the top plate 212 are formed at the middle of the top plate 212. A rotating space 213 is provided for the tool holder unit 30.

The holder unit 30 includes a holder body 31 having a shaft disposed on the fixing base 21, a main shaft gear set 32 having a longitudinal axis disposed in the holder body 31, and a plurality of laterally extending sides of the holder body 31. A cutter shaft 33, a first motor 34 disposed on the fixed seat 21 for driving the spindle gear set 32 to rotate, and a second motor 35 disposed on the fixed seat 21 for driving the seat body 31 to rotate. The holder body 31 is a hollow box body having a long rectangular shape, and the upper and lower ends thereof are respectively axially disposed on the bottom plate 211 and the top plate 212 of the fixing base 21, so that the seat body 31 can be rotated in the rotating space 213 of the fixing base 21. . The main shaft gear unit 32 extends longitudinally into the seat body 31 and includes a main shaft 321 and a plurality of driving helical gears 322 disposed on the main shaft 321 . The first motor 34 is mounted above the fixing base 21 so as to be coaxially driven. The spindle gear set 32 operates. Each of the cutter shafts 33 extends into the seat body 31 in a lateral direction, and includes a driven shaft 331, a driven helical gear 332 disposed at the middle of the driven shaft 331 and engaged with the driving helical gear 322, and two sets. At the two ends of the driven shaft 331 and extending from the mounting head 333 outside the seat body 31, the mounting head 333 can be provided with various cutting tools (not shown), so that when the first motor 34 drives the main shaft gear set After 32, each cutter shaft 33 can be directly rotated to perform various cutting operations. Second motor 35 is disposed above the fixed seat 21 adjacent to the first motor 34, and can be driven to rotate the entire seat body 31 for rotation. When the seat body 31 is rotated to an angular position desired by the operator, the operator can control the closing. The second motor 35 is operated, so that the holder body 31 is immediately stopped and rotated, so that the cutter shaft 33 on the holder body 31 can perform cutting work on the workpiece at an appropriate angle.

The brake unit 40 includes a brake disc 41 disposed above the seat body 31, and a brake mechanism 42 disposed on the mount 21 corresponding to the brake disc 41. Referring to FIG. 4, the brake mechanism 42 includes a driving cylinder 421 disposed on a side surface of the fixing base 21, and two sets of brake slats 422 movably connected to the driving cylinder 421, in this embodiment. The driving cylinder 421 is a pneumatic component that uses high-pressure air, and the two brakes are used to make the plate 422 a damping element with a high friction coefficient. The two brakes are arranged to have a gap 423 between the plates 422 through which the brake disk 41 can pass. By driving the cylinder 421 into the high-pressure air, the two brakes can be controlled to cause the plates 422 to be relatively displaced.

The above is an overview of the structure and shape of the brake device of the new type of power tool holder; then, the use action of the present invention and the expected effect can be stated as follows: Referring to FIG. 4, in the normal state, the brake mechanism 42 The brake disc 41 has not been clamped, and the seat body 31 is freely displaceable on the fixing base 21 without being restricted by any object, so that the seat body 31 is driven by the second motor 35. It can be rotated to the desired angular position of the operator.

Referring to Figure 5, when the operator confirms that the holder body 31 has turned When the predetermined angular position is reached, the brake mechanism 42 can be manipulated to perform the clamping operation, and the driving cylinder 421 is actuated to brake the plate 422 to the upper and lower sides of the brake disc 41, and is clamped by the brake mechanism 42. Hold down, the entire seat body 31 will be firmly fixed at the angular position, and then the cutter shaft 33 on the seat body 31 will start to operate, so that the cutter shaft 33 will drive the installed tool, and the pair is stably The workpiece is subjected to various cutting operations.

In summary, the brake device of the new power tool holder is mainly for improving the problem of the cutting instability of the conventional power tool holder 10. The technical method of the present invention is mainly to provide a brake disc 41 on the seat body 31, which is fixed. A brake mechanism 42 is disposed on the seat 21, and the brake mechanism 42 can brake the brake disk 41. When the seat body 31 is rotated on the fixed seat 21, the brake body 42 can be used to firmly fix the seat body 31. Positioning at the angular position desired by the user, the tool holder body 31 does not generate too much shaking vibration when the cutting work is performed, so that the tool shaft 33 can achieve stable cutting effect on the workpiece, thereby being effective Improve the precision of cutting.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification of the scope of the patent application and the contents of the patent specification. , are still within the scope of this new patent.

20‧‧‧ seat unit

211‧‧‧floor

212‧‧‧ top board

213‧‧‧Rotating space

30‧‧‧Knife unit

31‧‧‧Knife body

33‧‧‧Cutter shaft

34‧‧‧First motor

35‧‧‧second motor

40‧‧‧ brake unit

41‧‧‧ brake disc

42‧‧‧ brake mechanism

421‧‧‧ drive cylinder

422‧‧‧Brakes to make pieces

Claims (2)

A brake device for a power tool holder includes: a body unit including a fixing base; a tool holder unit including a tool holder body having a shaft disposed on the fixed seat, and a main shaft gear set having a longitudinal axis disposed in the seat body a plurality of cutter shafts laterally disposed at a side of the seat body, a first motor disposed on the fixed seat to drive the rotation of the spindle gear set, and a second disposed on the fixed seat to drive the rotation of the seat body a motor, the main shaft gear set is provided with a plurality of active helical gears, each of the cutter shafts extending into the seat body is provided with a driven helical gear that is meshed with the active helical gear; and a brake unit includes a set of the cutter A brake disc on the base body and a brake mechanism disposed on the fixed seat for clamping and positioning the brake disc. The brake device of the power tool seat according to claim 1, wherein the brake mechanism comprises a driving cylinder fixed on the fixing seat, and two movable connecting bodies on the driving cylinder can clamp the upper and lower sides of the brake disc. Press the brakes to make a piece of film.