WO2006038551A1

WO2006038551A1 - Vertical spinning machine

Info

Publication number: WO2006038551A1
Application number: PCT/JP2005/018098
Authority: WO
Inventors: Hiroaki Ishida; Shinichi Hokazono
Original assignee: Nihon Spindle Mfg. Co., Ltd.; Toyota Motor Hokkaido, Inc.
Priority date: 2004-10-01
Filing date: 2005-09-30
Publication date: 2006-04-13
Also published as: CN101031372A; JPWO2006038551A1; US20080028741A1

Abstract

A vertical spinning machine enabling the suppression of its height so as not to be disassembled in transportation. A mandrel (M) is disposed on a spindle (3), a work (W) fitted to the mandrel (M) is rotatably fixed by the pressing member (11) of a tailstock (10) from the upper side of the work (W), and the work is drawn by a drawing roller (R). The tailstock (10) is disposed movably to the outside of the axis area of the spindle (3) through a transverse means (20).

Description

Specification

Vertical Spinning Machine Technical Field

[0001] The present invention relates to a vertical spinning machine, and more particularly to a vertical spinner machine capable of suppressing the height of the apparatus.

Background art

Conventionally, a vertical spinning machine is used when, for example, main spindles are arranged in parallel, and pulley work is sequentially supplied to each main spindle by a transport mechanism to automatically perform a plurality of processes. (For example, see Patent Documents 1 and 2).

[0003] The vertical spinning machine has the advantage that the exclusive installation area can be reduced compared to the horizontal spinning machine. In addition to the above case, the installation area is limited. Etc. are used.

By the way, when a conventional vertical spinning machine is applied to a wheel work in which an aluminum forging material is drawn and formed into a wheel, as shown in FIG. 8, the frame 2 of the vertical spinning machine 50 is used. A main shaft 3 that rotates about a vertical axis is provided by an electric motor (not shown), and a mandrel M corresponding to a workpiece W to be processed is provided on the main shaft 3.

A tailstock 51 for pressing and fixing the work W attached to the mandrel M by an upward force is disposed above the spindle 3. This tailstock 51 is provided with a pressing member 52 that abuts against the workpiece W and biases it toward the mandrel M, and a pressing means 53 such as a hydraulic cylinder that moves the pressing member 52 up and down. The pressing member 52 is rotatably attached to the tip of the rod of the pressurizing means 53 via a rotating member such as a bearing so that the pressing member 52 can rotate together with the workpiece W.

Although the tool base 4 is disposed on the frame 2, the number of the tool bases 4 is not particularly limited, and a plurality of tool bases 4 can be disposed according to the processing content of the workpiece W.

The tool table 4 is provided with a drawing table 5 having a drawing roller R attached to the workpiece W so as to form the workpiece W into a desired shape, in the X-axis direction (perpendicular to the spindle 3) and the Z-axis direction. Arranged to be movable in the direction parallel to the main shaft 3.

The vertical spinning machine 50 rotates the workpiece W placed on the mandrel M along with the main shaft 3 by pressing and fixing the upper force by the pressing member 52 of the tailstock 51.

Next, the workpiece W is spun according to the mandrel M by moving in the X-axis direction and the Z-axis direction with the squeezing roller R pressed against the workpiece W.

Thereafter, the pressing member 52 of the tailstock 51 is moved upward, the workpiece W is extracted from the mandrel M by an appropriate means, and the processing is completed.

In the vertical spinning machine 50, the vertical stroke L1 of the tailstock 51 is determined in accordance with the size of the largest workpiece W to be spun. In other words, the workpiece W is placed on the mandrel M in response to the spinning force, and the press member 52 of the tailstock 51 can be raised to a position where the workpiece W can be extracted after processing. A stroke that can be done is necessary.

For example, the ascending position of the pressing member 52 (the position of the pressing member 52 when the workpiece W is placed on the mandrel M and the workpiece W is extracted from the mandrel M after processing) has a diameter after processing of the workpiece W of 17 In a vertical spinning machine that measures the spinning force of an aluminum wheel with a width of -22 inches and a width of 7-10 inches, it is about 2 m above the floor and is placed on top of the tailstock 51. The hydraulic cylinder as the pressure means 53 requires a maximum stroke L1 of about 600 mm. For this reason, the height of the vertical spinning machine will exceed the floor force of 4m. And with this vertical spinning machine that exceeds 4m in height, when it is transported to the site where the equipment is manufactured, the height limit is exceeded by the road traffic law for trailers that are normally used. Therefore, it is necessary to disassemble the assembled device (for example, remove the tailstock 51 in a vertical spinning machine) and reassemble it after carrying it to the installation location, which requires a lot of work. At the same time, there was a problem of increased costs.

Patent Document 1: Japanese Patent Laid-Open No. 2-6024

Patent Document 2: Japanese Utility Model Publication No. 62-77620

Disclosure of the invention

Problems to be solved by the invention In view of the above-described problems of the conventional vertical spinning machine, the present invention can suppress the height of the vertical spinning machine to a height that does not need to be disassembled during transportation. The purpose is to provide a Jung machine.

Means for solving the problem

[0008] In order to achieve the above object, the vertical spinning machine of the present invention has a mandrel disposed on a main shaft, and a work attached to the mandrel can be rotated from above the work by a pressing member of a tailstock. In a vertical spinning machine which is fixed and is drawn by a drawing roller, a tailstock is arranged so as to be able to move out of the spindle axis region via a transverse means.

[0009] In this case, the traversing means may be composed of a rail disposed on the main body side and a fitting member disposed on an arm extending from a tailstock that is fitted to the rail. it can.

[0010] In addition, a workpiece gripping mechanism can be disposed on the pressing member of the tailstock.

The invention's effect

[0011] According to the vertical spinning machine of the present invention, the tailstock is arranged so as to be able to move out of the spindle axis region via the transverse means. It is possible to shift to a retracted position that is off the upper side of the work placed on the drel. As a result, it is possible to reduce the transition distance when raising the pressing member of the tailstock so that the workpiece can be placed on the mandrel and the mandrel can be removed after the processing due to the spinning force. The length of the hydraulic cylinder or the like as the pressurizing means can be shortened, and the height of the vertical spinning machine can be suppressed to a height that does not need to be disassembled during conveyance.

[0012] Further, the traversing means includes a rail disposed on the main body side and a fitting member disposed on an arm extending from a tailstock that is fitted to the rail, thereby enabling a simple mechanism to be used. The accuracy and rigidity of the traversing means can be increased.

[0013] In addition, by supplying a workpiece gripping mechanism to the pressing member of the tailstock, it is possible to automatically feed and discharge the workpiece.

Brief Description of Drawings

FIG. 1 is a partial sectional front view showing a first embodiment of a vertical spinning machine of the present invention. FIG. 2 is a plan view of the same part cutout.

3) An explanatory view of the traversing means, (a) is a partially cutaway front view, and (b) is an enlarged view of the rail and the fitting member.

FIG. 4 shows another embodiment of the tailstock, in which (a) is a front view with a partially cutaway, and (b) is an arrow view of XX in (a).

[5] FIG. 5 is a partially sectional front view showing a second embodiment of the vertical spinning machine of the present invention.圆 6] A partial cross-sectional front view showing an example of a gripping mechanism.

FIG. 7 is a partial cross-sectional front view showing a modified example of the gripping mechanism.

FIG. 8 is a partial cross-sectional front view of a conventional vertical spinner machine.

Explanation of symbols

1 Vertical spininama,

3 Spindle

7 Body (upper scaffold)

10 Tailstock

11 Press member

12 Pressurizing means

13 arm

20 Traverse means

21 Lenore

22 Mating member

23 Drive mechanism

30 Grip mechanism

M Mandrenore

R squeezing roller

W Work

BEST MODE FOR CARRYING OUT THE INVENTION

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a vertical spininer machine of the present invention will be described below with reference to the drawings. Example 1 1 to 3 show a first embodiment of a vertical spinning machine according to the present invention.

In this vertical spinning machine 1, a mandrel M is arranged on a main shaft 3 that rotates about a vertical axis, and a work W attached to the mandrel M is inserted from above the work W to a pressing member of a tailstock 10 In the vertical spinning machine, which is fixed rotatably by 11 and drawn by the squeezing roller R, the tailstock 10 is moved out of the axial center area of the main spindle 3 through the traversing means 20 (in the example shown, the side of the axial core). ) So that it can be transferred to!

[0018] In this case, the traversing means 20 is arranged on the lower surface of the upper scaffolding 7 installed on the main body of the vertical spinning machine 1, specifically on the leg 8 standing upward from the frame 2. Rail 21 (In this embodiment, the rail 21 is orthogonal to the X-axis direction (perpendicular to the main shaft 3) and the Z-axis direction (parallel to the main shaft 3) as shown in FIG. 1 or FIG. Force to be arranged in the direction (Y-axis direction) (can also be arranged in the X-axis direction.) And the arm 13 extending from the tailstock 10 fitted to the rail 21 The fitting member 22 and the drive mechanism 23 for moving the tailstock 10 are used.

As shown in FIG. 3, the rail 21 is formed with a recess 21a at the center of both side surfaces, and the sliding fitting surface 22a of the fitting member 22 is fitted into the recess 21a.

The drive mechanism 23 can be any drive mechanism such as a servo motor or a hydraulic cylinder. When a hydraulic cylinder is used for the drive mechanism 23, the tip of the cylinder rod of the hydraulic cylinder is connected to the tip of the arm 13, and the tailstock 10 is moved to the position indicated by the solid line in FIG. It is possible to move to the position by a distance N in the direction perpendicular to the main spindle 3 (in the horizontal direction).

Thus, the tailstock 10 is attached to the upper scaffolding of the vertical spinning machine 1 via the traversing means 20.

The tailstock 10 is provided with a pressing member 11 that abuts against the workpiece W and urges the mandrel M, and a pressurizing means 12 such as a hydraulic cylinder that moves the pressing member 11 up and down. . The pressing member 11 is rotatably attached to the tip end of the rod of the pressurizing means 12 via a rotating member B such as a bearing so that the pressing member 11 can rotate together with the workpiece W.

As shown in FIG. 4, the tailstock 10 can be a stationary hydraulic cylinder that serves as the pressurizing means 12. In this case, for the hydraulic cylinder and piston, the tailstock body 10a and pusher The pressure member 11 has a U-shaped groove structure 10b so that the pressure member 11 can be moved forward and backward, and the uneven portion 12b formed at the front end of the pressure means 12 and the slide portion 11c disposed above the pressing member 11 can be joined and detached. The pressing force of the pressing means 12 is transmitted to the pressing member 11 by opening the gripping claws 13a to the outside after the concavo-convex portion 12b and the slide portion 11c are fitted (solid line position in the figure).

[0020] Although the tool base 4 is disposed on the frame 2, the number of the tool bases 4 is not particularly limited. Depending on the machining content of the workpiece W, a plurality of tool bases 4 may be disposed. it can.

In the vertical spinning machine 1, the work W placed on the mandrel M is pressed and fixed by the pressing member 11 of the tailstock 10 and rotated along with the main shaft 3.

Next, the squeezing roller R is pressed against the workpiece W to perform the spinning process according to the mandrel M.

Thereafter, the pressing member 11 of the tailstock 10 is moved upward and separated from the workpiece W. Next, the traversing means 20 is used to move the tailstock 10 to the side retracted position where the upward force of the work W is also removed, specifically, from the position of the solid line shown in FIG. Move in a right-angle direction (horizontal direction). As a result, the tailstock 10 is also removed from the upper area force of the work W placed on the mandrel M. Thereafter, the loader unloader mechanism (not shown) is operated to extract the workpiece W from the mandrel M force, and the machining is completed.

[0022] This makes it possible to reduce the upward transition distance (stroke L2 of the pressing member 11 of the tailstock 10) when the pressing member 11 of the tailstock 10 is separated from the work W, and the pressurizing means 1 2 It is possible to shorten the length of the hydraulic cylinder, etc., and the height of the vertical spinning machine does not need to be disassembled during transportation (for example, 17 to 22 inches in diameter and 7 to 10 in width) A vertical spinning machine that performs the spinning force of an inch aluminum wheel, and the overall height of the machine can be reduced to about 3 m).

[0023] Note that the stroke of the hydraulic cylinder as the pressurizing means 12 is, for example, as shown in Fig. 1, with the upper surface HI of the workpiece W fitted to the mandrel M as a reference position, When the difference in size of the drill M is absorbed by holding an adapter or the like on the upper surface H2 of the spindle 3 (based on the workpiece upper surface), the pressing member 11 also separates the contact surface force of the workpiece W regardless of the size of the workpiece W. If there is enough stroke, it can fulfill its function. In addition, when the upper surface H2 of the main spindle 3 without using an adapter or the like is set to the reference position (main spindle upper surface reference), it is the smallest size that can be machined by changeover with the vertical spinning machine. Work W force A stroke slightly larger than the difference in height between the maximum work W is required.

Example 2

5 to 6 show a second embodiment of the vertical spinning machine of the present invention.

This vertical spinning machine 1 presses the gripping mechanism 30 when spinning a workpiece W having a relatively small workpiece W size (specifically, for example, a width of 7 inches or less). Are arranged.

The gripping mechanism 30 includes a curved claw member 31 for chucking the workpiece W, and an expansion / contraction mechanism 32 that also has an air cylinder force to open and close the claw member 31.

One end of the claw member 31 is attached as a fulcrum 31a to a mounting member 33 disposed on the outer peripheral surface of the non-rotating part 11a above the rotating part l ib that rotates together with the workpiece W of the pressing member 11. Attach the tip of the telescopic mechanism 32 to the action point 31b at a distance.

The telescopic mechanism 32 has the tip connected to the action point 31 b and the other end 32 a fixed to a proper position on the tailstock 10.

The claw member 31 and the expansion / contraction mechanism 32 are arranged in the circumference of the pressing member 11 in two or more, preferably three or four.

In addition, as shown in FIG. 6, the gripping mechanism 30 has a lower surface (molded product W1) of the pressing member 11 at the rising position of the pressing member 11 determined by the stroke L3 of the hydraulic cylinder as the pressing means 12. It can be used only when the width P2 of the molded product W1 is smaller than the distance P1 from the upper surface of the mandrel M to the upper surface of the mandrel M.

Then, the gripping mechanism 30 opens the claw member 31 by contracting the expansion / contraction mechanism 32, and the state force also extends the expansion / contraction mechanism 32 to close the claw member 31 and hold the workpiece W, and vice versa. In addition, the claw member 31 is closed by extending the expansion / contraction mechanism 32, and the workpiece W can be released by opening the claw member 31 by contracting the expansion / contraction mechanism 32 from this state. By moving the gripping mechanism 30 together with the raising and lowering of the pressing member 11 of the tailstock 10, the workpiece W is placed on the mandrel M (loading), and after caloring, the workpiece W (molded product W1) is placed on the mandrel. The M force can be extracted and transferred to a conveyor or the like described later (unloading), and the supply and discharge of the workpiece W to and from the mandrel M can be automated.

The work W is supplied to and discharged from the mandrel M via, for example, a conveying means (not shown) such as a conveyor connected to the transition position of the tailstock 10 shown by the broken line in FIG. Can do.

[0028] In addition to the above, the gripping mechanism 30 may be configured as in the modification shown in FIG.

The gripping mechanism 30A extends from the non-rotating portion 11a of the pressing member 11 and is inserted into a hole Wa opened at the center of the upper surface of the work W. The support bar 34 having a slightly smaller diameter than the hole Wa and the support bar And a projecting member 35 that is operated by air or hydraulic pressure disposed on the peripheral surface of 34. Two or more, preferably three or four protruding members 35 are arranged on the peripheral surface of the support bar 34. The air and hydraulic pressure for operating the protruding member 35 are supplied via a support rod 34 from a booster mechanism (not shown) provided on the non-rotating portion 11a side of the pressing member 11.

[0029] The gripping mechanism 30 holds the workpiece W by projecting the projecting member 35 in the state force in which the projecting member 35 is accommodated in the support bar 34, and conversely, the state force in which the projecting member 35 is projected. Since the workpiece W can be released by storing the protruding member 35 in the support bar 34, the gripping mechanism 30 is combined with the raising / lowering of the pressing member 11 of the tailstock 10 in response to the spinning force. The workpiece W can be placed on the mandrel M (loading), and the workpiece W (molded product W1) can be extracted (unloaded) from the mandrel M after processing, and the workpiece W is supplied to the mandrel M. And the discharge can be automated.

[0030] The other configurations and operations of the vertical spinning machine of the second embodiment shown in Figs. 5 to 6 and the vertical spinning machine of the modified example shown in Fig. 7 are shown in Figs. First shown in 3 This is the same as the vertical spinning machine of the embodiment.

[0031] The vertical spinning machine of the present invention has been described based on a plurality of embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and does not depart from the spirit of the present invention. The configuration can be changed as appropriate.

Industrial applicability

[0032] The vertical spinning machine of the present invention can suppress the height of the spinning machine to a height that does not need to be disassembled at the time of transportation. In addition to being able to be used, it can be suitably used when there are restrictions on installation conditions such as a low ceiling height.

Claims

The scope of the claims

[1] A vertical spinning machine in which a mandrel is arranged on the spindle, a work attached to the mandrel is rotatably fixed from above the work by a pressing member of a tailstock, and drawing is performed by a drawing roller. A vertical spinning machine characterized in that the tailstock is arranged so as to be movable out of the spindle axis region via a traversing means.

[2] The traversing means comprises a rail disposed on the main body side and a fitting member disposed on an arm extending from a tailstock that is fitted to the rail. The vertical spinning machine described.

[3] The vertical spinning machine according to [1] or [2], wherein a work gripping mechanism is provided on the pressing member of the tailstock.