TWM462163U - Central rack of tooling machine - Google Patents

Description

Machine tool center frame

The invention relates to a machine tool, in particular to a machine tool center frame.

When the general machine tool is used to process a workpiece with a large length, in order to avoid the fact that the workpiece is too long and is prone to deflection, which affects the precision of the machining, a center frame is installed on the machine tool (as shown in Figure 1 In the TW certificate No. 307466 patent, the center frame includes a body 1 and a top support device 2 mounted on the frame body 1. The top support devices 2 each have a rotatably shaft mounted on the frame body 1. The adjusting bolt 201 and the abutting post 202 are disposed on the frame body 1 and screwed to the adjusting bolt 201. By rotating the adjusting bolts 201, the abutting posts 202 can be displaced in the axial direction and abutting against a workpiece 3.

Although the above-mentioned center frame can achieve the intended support purpose, in actual use, if the axial length of the top support device 2 is too short, the adjustment stroke is limited and cannot be applied to a workpiece supporting a large circular diameter range. If the axial length of the above-mentioned ejector 2 is lengthened, it can be applied to a workpiece supporting a large circular diameter range, but when supporting a workpiece having a large circular diameter, the ejector 2 is exposed outside the frame body 1 One end will be longer, It is easy to interfere with the peripheral objects of the machine tool (for example, the turret, the operator), and as shown in FIG. 2, the frame body 1 of the center frame is also likely to interfere with the turret 4 of one of the machine tools.

Accordingly, it is an object of the present invention to provide a machine tool center frame that can be adapted to support a workpiece having a larger circular diameter range and that avoids interference with surrounding objects.

The machine tool center frame of the present invention is for supporting a workpiece extending along an axis, the center frame comprising a base, a pair of clamping members, a pair of driving units and an intermediate abutting unit. The pedestal is mounted on the machine tool, and the tongs are respectively disposed on two sides of the workpiece, and are respectively disposed on two sides of the axis, each having a shaft disposed at a pivot portion of the base, and a a receiving portion on one side of the pivot portion and a clamping portion disposed on the other side of the pivot portion, the driving units are respectively mounted on the base corresponding to the clamping members, and each has a connection a driving portion of the base and a tilting portion connected to the receiving portion, the driving members are operable to interlock the receiving portions, and the clamping members are respectively pivoted by the corresponding pivot portions The center pivots relative to the base and causes the clamping portions to abut or move away relative to the workpiece, the intermediate abutment unit being mounted on the base and located between the jaw members and having An operating portion connected to the base and an abutting portion corresponding to the workpiece, the operating portion is operable to abut or move away from the workpiece.

The effect of the novel: the cooperation of the pedestal with the clamp members, the driving units and the intermediate abutting unit can not only provide workpiece stability Support, and can be applied to support workpieces with a large circular diameter range and avoid interference with surrounding objects.

100‧‧‧Tool machine

110‧‧‧ machine tools

120‧‧‧Knife Tower

200‧‧‧Workpiece

L‧‧‧ axis

10‧‧‧ Pedestal

11‧‧‧ bottom

12‧‧‧ top

13‧‧‧Intermediate

14‧‧‧Depression

15‧‧‧ pivot shaft

16‧‧‧Guided arc slot

20‧‧‧Clamps

21‧‧‧Axis

22‧‧‧Responsible

221‧‧‧Spiral rod

222‧‧‧ screw holes

23‧‧‧Clamping Department

24‧‧‧guides

25‧‧‧ openings

30‧‧‧Drive unit

31‧‧‧Transposition

32‧‧‧ drive parts

321‧‧‧ Drive Department

322‧‧‧掣部

323‧‧ Thread Department

40‧‧‧Intermediate support unit

41‧‧‧ Positioning Block

42‧‧‧Rot

421‧‧‧Operation Department

422‧‧‧ Screw Department

43‧‧‧Slider

431‧‧‧ screw hole

432‧‧‧Remove the Ministry

Other features and effects of the present invention will be apparent from the detailed description of the preferred embodiments of the drawings. FIG. 1 is a schematic view showing the installation of a conventional center frame of a machine tool; FIG. 2 is a conventional center frame and surrounding objects. FIG. 3 is a perspective view showing a preferred embodiment of the center machine frame of the present invention; FIG. 4 is a plan sectional view of a preferred embodiment of the present invention, illustrating a method for supporting a smaller circular diameter. FIG. 5 is a schematic view showing the operation of a small-circle-diameter workpiece according to a preferred embodiment of the present invention, illustrating a schematic diagram in which the center frame and the peripheral object do not interfere; FIG. 6 is another planar sectional view of the above preferred embodiment of the present invention. The description is applied to a workpiece supporting a large circular diameter; and FIG. 7 is a schematic view showing the operation of a large-diameter workpiece of the above preferred embodiment of the present invention, illustrating a schematic diagram in which the center frame and the surrounding object do not interfere.

Referring to FIG. 3, FIG. 4 and FIG. 5, in a preferred embodiment of the center of the machine tool, the machine tool 100 has a machine tool 110 and a turret 120 mounted on the machine tool 110. The center frame is used to support a machine tool 110. The workpiece 200 extends along an axis L. The center frame includes a base 10, a pair of jaw members 20, a pair of driving units 30, and an intermediate abutting unit 40.

The base 10 is mounted on the machine tool 110 of the power tool 100. And having a bottom portion 11 adjacent to the machine tool 110, a top portion 12, an intermediate portion 13 between the bottom portion 11 and the top portion 12, and a recess corresponding to the intermediate portion 13 and recessed inwardly in an arc shape Part 14. The workpiece 200 corresponds to the recessed portion 14. The base 10 further has a pair of pivot shafts 15 and a pair of guiding arc slots 16 respectively disposed on the bottom portion 11 and the top portion 12, and the guiding arcs. The slots 16 extend in an arc shape with the pivot axes 15 as the center of rotation.

The clamp members 20 are respectively disposed on two sides of the workpiece 200, and are disposed on two sides of the axis L, and each has a shaft pivot portion 21 disposed on the pivot shaft 15 of the base 10, and a setting The receiving portion 22 on the side of the shaft pivot portion 21, a holding portion 23 provided on the other side of the shaft pivot portion 21, and a guide rod 24 passing through the corresponding guiding arc groove 16. The receiving portion 22 is provided with a screwing rod 221, and the screwing rod 221 is provided with a screw hole 222. In this embodiment, the clamping portions 23 of the clamping members 20 are in the shape of a roller. A pair of openings 25 for the recesses 14 and the workpieces 200 are inserted between the clamping portions 23 of the clamping members 20 are formed. The opening 25 faces the turret 120.

The driving units 30 are respectively mounted on the base 10 corresponding to the clamping members 20, and each has a rotating base 31 provided on the base 10 and a driving member rotatably shafted on the rotating base 31. 32. The driving member 32 has a long rod shape, and has a driving portion 321 which is disposed on the rotating base 31 and is connected to the base 10 through the rotating base 31, and is connected to the receiving portion through the screwing rod 221. The swaying portion 322 of the portion 22 has a threaded portion 323 screwed to the screw hole 222, that is, the driving portion 321 and the urging portion 322 are disposed on the driving member 32, and the The tilting portion 322 is screwed to the corresponding The receiving portion 22 of the jaw member 20.

The intermediate abutment unit 40 is mounted on the base 10 and located between the clamp members 20, and has a positioning seat 41 mounted on the base 10 and a rotatably shafted portion of the positioning base 41. a rotating rod 42 and a sliding rod 43 slidably disposed inside the positioning base 41 and driven by the rotating rod 42. The rotating rod 42 has an operating portion 421 connected to the base 10 through the positioning base 41. And a screw portion 422 opposite to the operating portion 421, the sliding rod 43 has a screw hole portion 431 screwed into the screw portion 422 and an abutting portion 432 corresponding to the workpiece 200 and the recess portion 14. That is, the operation portion 421 is provided on the rotating lever 42, and the pressing portion 432 is provided on the slide bar 43. In this embodiment, the urging portion 432 is in the shape of a roller, and the shaft is disposed at the end of the sliding rod 43. The clamping portions 23 of the tongs 20 are spaced apart from each other by 120 degrees, and respectively respectively with the intermediate abutting unit The urging portions 432 of 40 are spaced 120 degrees apart.

As shown in FIG. 4 and FIG. 5 , when the center frame is integrally assembled and mounted on the machine tool 110 of the power tool 100 , the direction of the opening 25 faces the turret 120 and is opposite to the operator's operating position. . When the driving member 32 of the driving unit 30 is rotated, the threaded portions 323 of the urging portions 322 and the screw holes 222 of the clamping members 20 can be screwed together to interlock the receiving portions 22, And the clamping members 20 are pivoted relative to the base 10 with the corresponding pivotal portions 21 (the pivotal shafts 15) as pivot centers, and the clamping portions 23 are opposite to the When the workpiece 200 is abutted or moved away, and the operation portion 421 of the intermediate abutment unit 40 is operated, the sliding rod 43 can be driven to move linearly relative to the positioning seat 41, and the urging portion 432 is generated relative to the workpiece 200. Reach or stay away. The clamping portions 23 When the workpiece 200 is moved away, the workpiece 200 can be nested or taken out from the opening 25, and the clamping portions 23 are abutted against the workpiece 200, and the pushing portion 432 is also made relative to the workpiece 200. When the offset is generated, the workpiece 200 can be stably clamped, and the precision processing can be achieved.

As shown in FIG. 5, in the state in which the small-circle-diameter workpiece 200 is clamped, the center frame and the peripheral objects (for example, the turret 120) do not interfere, and the clamp members 20 for gripping the workpiece 200 are provided. The intermediate abutting unit 40 and the driving units 30 are not protruded toward the operator, so that interference with surrounding objects or operators can be avoided.

As shown in FIG. 6 and FIG. 7 , when the driving member 32 of the driving unit 30 is operated again, and the operating portion 421 of the intermediate abutting unit 40 is rotated, the large-diameter workpiece 200 can be clamped. In the state of holding the large-diameter workpiece 200, the center frame and surrounding objects (such as the turret 120) also do not interfere, and the clamping members 20 for clamping the workpiece 200, the intermediate abutting unit 40, and the When the driving unit 30 is not protruded toward the operator, interference with surrounding objects or operators can be avoided.

Therefore, the cooperation of the base 10 with the clamping members 20, the driving units 30 and the intermediate abutting unit 40 can not only provide stable support of the workpiece 100, but also can be applied to support workpieces with a large circular diameter range. It can avoid interference with surrounding objects.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

200‧‧‧Workpiece

10‧‧‧ Pedestal

11‧‧‧ bottom

12‧‧‧ top

13‧‧‧Intermediate

14‧‧‧Depression

15‧‧‧ pivot shaft

16‧‧‧Guided arc slot

20‧‧‧Clamps

21‧‧‧Axis

23‧‧‧Clamping Department

24‧‧‧guides

25‧‧‧ openings

40‧‧‧Intermediate support unit

41‧‧‧ Positioning Block

43‧‧‧Slider

432‧‧‧Remove the Ministry

Claims (7)

A machine tool center frame for supporting a workpiece, the workpiece extending along an axis, the center frame comprising: a base mounted on the machine tool; a pair of clamp members respectively disposed on both sides of the workpiece, and Divided on both sides of the axis, each having a shaft pivot portion disposed on the base, a receiving portion disposed on one side of the pivot portion, and a clamping portion disposed on the other side of the pivot portion a pair of driving units respectively mounted on the base corresponding to the clamping members, and each having a driving portion connected to the base and a tilting portion connected to the receiving portion, operating the driving The member can interlock the receiving portions, and cause the clamping members to pivot relative to the base with the corresponding pivot portion as a pivoting center, and the clamping portions are caused to be opposite to the workpiece Abutting or moving away; and an intermediate abutting unit mounted on the base and located between the clamp members, and having an operating portion coupled to the base and an abutting portion corresponding to the workpiece, operating the The operating portion can cause the abutting portion to abut or move away from the workpiece. The machine tool center frame of claim 1, wherein the shafts of the nipples of the tongs are provided with a screwing rod, the screwing rod is provided with a screw hole, and the driving units each have a shaft. a rotating base of the base and a driving member rotatably disposed on the rotating base, the driving portion and the rotating portion are disposed on the driving member, and the rotating portion is screwed to the corresponding screwing rod In the screw hole. The machine tool center frame of claim 2, wherein the intermediate abutment unit further has a positioning seat mounted on the base, a rotating shaft rotatably shafted on the positioning seat, and a slidably worn A sliding rod disposed inside the positioning seat and driven by the rotating rod, the operating portion is disposed on the rotating rod, and the pressing portion is disposed on the sliding rod. The machine tool center frame of claim 3, wherein the pressing portion of the intermediate abutting unit has a roller shape, and the shaft is disposed at the end of the sliding rod, and the clamping portion of the clamping member has a roller shape, and The shafts are respectively disposed at the ends of the jaw members. The machine tool center frame of claim 1, wherein the base further has a pair of pivot shafts for pivoting the shafts and a pair of guiding arc slots, each of the clamp members having a wearer The guiding arcs are disposed in the corresponding guiding arc grooves, and the guiding arc grooves respectively extend in an arc shape with the pivot axes as the center of rotation. The machine tool center frame of claim 1, further comprising a turret, the opening of the clamping member forming an opening for the workpiece to be inserted, the opening facing the turret. The machine tool center frame of claim 1, wherein the clamping portions of the jaw members are spaced apart from each other by 120 degrees and are respectively spaced apart from the abutting portion of the intermediate abutting unit by 120 degrees.