JP3324931B2 - Processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus for performing processing such as cutting and grinding on a long work.

[0002]

2. Description of the Related Art A processing apparatus of this kind is disclosed in Japanese Unexamined Patent Publication No. Hei.
No. 9 discloses this. In this conventional device, a slide body is mounted on a base so as to be movable in the longitudinal direction of the work, and another slide body is placed on the slide body in a direction perpendicular to the movement direction of the slide body (that is, the work piece). (In the direction of forward and backward movement with respect to). A rotating tool is supported on the slide body that moves forward and backward, and a workpiece clamped and fixed by clamping means including a clamper and a cylinder is processed by the rotating tool.

[0003]

When a long workpiece is machined, it is necessary to clamp and fix the workpiece by the clamping means. The selection of the clamp position is important for improving the machining accuracy for the workpiece. . JP 5
In the embodiment disclosed in FIG. 7 of JP-A-31639, the clamp means is fixed to a slide body mounted on a base different from the base, and the movement of the clamp means is determined by the slide body. It is done by moving. In order to move and arrange the slide at a predetermined position, there is a drive mechanism different from the drive mechanism for moving the slide on the base, or a manual method. However, the adoption of the above-mentioned another drive mechanism causes an increase in the cost of the processing apparatus, and the moving and arranging method by hand hinders the automation of the processing apparatus.

[0004] An object of the present invention is to deal with automation of a processing apparatus without increasing the cost.

[0005]

SUMMARY OF THE INVENTION For this purpose, the present invention provides a processing means which is moved and arranged in a longitudinal direction of a work by a driving means in order to perform processing on a long work, and wherein the work is clamped. intended for machining apparatus equipped with a clamping means which is moved disposed in the longitudinal direction of the workpiece in order to fix, in the invention of claim 1, to support the processing means
The driven body moved in the longitudinal direction of the work by the driving means, the coupled means provided on one of the clamp means and the driven body, and the other one of the clamp means and the driven body provided, and a coupling means to be switched the to and uncoupled that do not bind to the binding state of binding to the coupling means, the clamp hands
The step is, when in a coupled state with the driven body, the processing means
The driving means provided to move and arrange the
The gist is that it is moved and placed in a location .

When the clamping means is moved, the coupling means is coupled to the coupled means, and the driven body is moved in the longitudinal direction of the workpiece by the driving means in this coupled state.
Therefore, the clamp means moves in the longitudinal direction of the work in a state of being coupled to the driven body, and the driving means for moving the processing means in the longitudinal direction of the work also serves as a drive mechanism for moving the clamp means. The coupling means and the coupling means are significantly more cost-effective than a dedicated drive mechanism for moving the clamping means.

According to the second aspect of the present invention, the clamp means
A plurality of clamp means are provided on the driven body side.
Each clamp is determined individually by the photoelectric sensor
The gist is that the movement arrangement of the means is controlled.

According to a third aspect of the present invention, the coupling includes an engaging member that is switched between a coupling position coupled to the coupled member and a retracted position that is not coupled, and switching driving means for switching and driving the engaging member. Means were configured.

When the clamping means is moved, the engaging body switched to the coupling position by the switching driving means is coupled to the coupled means, and the driven body is moved in the longitudinal direction of the workpiece by the driving means in this coupled state. Be moved.
If the switching means switches the engagement body from the coupling position to the retracted position, the coupling between the engagement body and the coupled body is released.

In the invention according to claim 4, a fluid pressure cylinder mounted on the driven body is employed as the switching drive means. The engagement body is switched between the coupling position and the retreat position by controlling the supply of fluid pressure to the fluid pressure cylinder.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 2, a pair of rails 12 are arranged on the base 11 along a longitudinal direction of the base 11 (hereinafter, referred to as an X-axis direction). A ball screw shaft 13 is arranged between the two rails 12 along the X-axis direction. The ball screw shaft 13 is rotated forward and reverse by a motor 14.
As shown in FIG. 1, a saddle 15 is mounted on a rail 12 via a moving body 151. A ball screw bracket 16 is fixed to the lower surface of the saddle 15, and the ball screw shaft 13 is screwed to the ball screw bracket 16. Accordingly, the saddle 15 moves in the X-axis direction due to the forward / reverse rotation of the ball screw shaft 13.

On the front surface of the saddle 15, an air cylinder 17 and a plurality of reflective photoelectric sensors 181, 182, 183, are provided.
183 and 184 are attached vertically in a row. The air cylinder 17 engages with the engaging rod 17 in a direction orthogonal to the X-axis direction in a horizontal plane (hereinafter, referred to as a Y-axis direction).
1 is switched and driven. The air cylinder 17 is a solenoid valve 34
Is connected to a compressed air supply source (not shown).
When the solenoid valve 34 is excited, the engagement rod 171 is moved to the position shown in FIG.
When the solenoid valve 34 is demagnetized, the engaging rod 171 is retracted to the retracted position shown in FIG.

A slide body 19 is mounted on the saddle 15. The slide body 19 is slid in the Y-axis direction by a drive mechanism (not shown). A head 20 is supported on the slide body 19 so as to be movable in a vertical direction (hereinafter, referred to as a Z-axis direction). The head 20 is moved up and down by forward and reverse operations of a lifting motor 21. A processing tool 2 is provided at the lower end of the head 20.
2 are installed. The processing tool 22 is driven by a motor 23.

On the base 11, another pair of rails 24
They are arranged along the axial direction. On the rail 24, a plurality of clamping devices 27, 28, 29 (in the present embodiment,
) Are placed via the moving body 251. An L-shaped bracket 26 is fixed on a support 25 constituting the clamp devices 27, 28, 29. Air cylinders 271, 281, 291 are provided on the horizontal portions of the brackets 26.
Is attached. Each air cylinder 271, 28
The gripper 30 driven by the first and second 291 faces the upright portion 261 of the bracket 26. A receiving plate 31 is fixed to the facing surface side of the vertical portion 261 facing the gripping body 30. The long workpiece W is gripped between the gripping body 30 and the receiving plate 31 that constitute the clamp device.

Each of the upright portions 261 has an engagement hole 32 formed therein. The height position of the engagement hole 32 is
It is the same as the height position of 1. When the engagement hole 32 and the engagement rod 171 face each other, the engagement rod 171 in the protruding state is fitted into the engagement hole 32 as shown in FIG.

Dogs 331, 332, 3 are mounted on each support 25.
33 is fixed. The stand 11 has a dog 3 for standby.
5 is attached. Each dog 331-333, 35
Height position of the photoelectric sensors 181 to 184 and 1
It is different to correspond to one. When the dog 331 and the photoelectric sensor 181 face each other, the photoelectric sensor 181
When the dog 31 is detected and the dog 332 faces the photoelectric sensor 182, the photoelectric sensor 182 detects the dog 332. When the dog 333 faces the photoelectric sensor 183, the photoelectric sensor 183 detects the dog 333. When the dog 35 faces the photoelectric sensor 184, the photoelectric sensor 184 detects the dog 35. The photoelectric sensors 181 to 184 send detection information to the control unit C. The control unit C controls the operation of the motor 14 and the demagnetization of the solenoid valve 34 based on the detection information obtained from the photoelectric sensors 181 to 184. The control unit C has an input device 36
Are signal connected.

FIGS. 5 and 6 show the clamping devices 27 and 2 respectively.
It is a flowchart showing the program for performing the movement arrangement of 8,29. The control unit C controls each of the clamping devices 2 based on the moving arrangement program shown in this flowchart.
The moving arrangement of 7, 28, 29 is controlled.

Each of the clamp devices 27, 28, 29 and the saddle 15 are at standby positions P1, P2, P3, P4 shown in FIG. When the saddle 15 is at the standby position P4, the photoelectric sensor 184 and the standby dog 35 face each other. From this state, the motor 14 rotates forward and the photoelectric sensors 181 to 183
Are opposed to the dogs 331 to 333. Photoelectric sensor 1
When 81 detects the dog 331 corresponding to the clamp device 27, the control unit C stops the forward rotation of the motor 14 and excites the electromagnetic valve 34 based on the information of the dog detection.
As shown in FIG. 3A, when the motor 14 stops rotating in the forward direction, the engagement rod 171 is moved to the engagement hole 3 corresponding to the clamp device 27.
3, the engagement rod 171 is fitted into the engagement hole 32 by the excitation of the electromagnetic valve 34 as shown in FIG. After the electromagnetic valve 34 is excited, the control unit C rotates the motor 14 forward by a predetermined forward rotation amount input and set by the input device 36. By the predetermined amount of forward rotation, the clamp device 27 at the standby position P1 is moved to the predetermined clamp position as shown in FIG. When the motor 14 rotates forward by a predetermined amount and stops, the control unit C demagnetizes the solenoid valve 34. The engagement rod 171 is separated from the engagement hole 32 by the demagnetization of the solenoid valve 34.

After the demagnetization of the solenoid valve 34, the control unit C
Reverse 4 By the reverse rotation of the motor 14, the saddle 15 moves toward the standby position P4. When the photoelectric sensor 182 detects the dog 332 during this movement, the control unit C stops the reverse rotation of the motor 14 and excites the electromagnetic valve 34. When the motor 14 stops rotating in reverse, the engaging rod 171 faces the engaging hole 32 corresponding to the clamping device 27 as shown in FIG.
71 is fitted into the engagement hole 32 corresponding to the clamp device 28. After the electromagnetic valve 34 is excited, the control unit C rotates the motor 14 forward by a predetermined forward rotation amount input and set by the input device 36. The clamp device 28 at the standby position P2 is moved to the predetermined clamp position by the predetermined amount of forward rotation.
When the motor 14 rotates forward by a predetermined amount and stops, the control unit C demagnetizes the solenoid valve 34. The engagement rod 171 is separated from the engagement hole 32 by the demagnetization of the solenoid valve 34.

After the solenoid valve 34 is demagnetized, the control unit C
4 during the reverse rotation, and the photoelectric sensor 183 switches the dog 3 during the reverse rotation.
When 33 is detected, the clamp device 29 is moved and arranged at a preset clamp position similarly to the previous clamp devices 27 and 28.

After the clamp device 29 is located at the predetermined clamp position, the control unit C rotates the motor 14 in the reverse direction, and the saddle 15 moves to the standby position P4. When the photoelectric sensor 184 detects the standby dog 35, the control unit C stops the reverse rotation of the motor 14, and the saddle 15 stops at the standby position P4 shown in FIG.

After each of the clamping devices 27, 28, 29 is moved and arranged at a predetermined clamping position, each of the clamping devices 2
7, 28 and 29 are fixed at predetermined positions by a fixing device (not shown). Thereafter, the work W is carried into the bracket 26 by a carry-in device (not shown),
It is clamped and fixed by 7, 28, 29. And
After the work W is subjected to a predetermined processing by the processing tool 22, the clamping action by the clamp devices 27, 28, and 29 is released, and the work W is carried out from the bracket 26. After unloading the work W, the control unit C fits the engaging rod 171 into the engaging hole 32 corresponding to the clamp device 27 and moves the clamp devices 27, 28, 29 to the standby positions P1, P.
Control to move to P2 and P3. Clamping device 27,
After 28 and 29 move to the standby positions P1, P2 and P3,
The control unit C controls the saddle 15 to move to the standby position P4.

In the first embodiment, the following effects can be obtained. (1-1) When the clamp devices 27, 28 and 29 are moved, the engaging rod 171 constituting the coupling means is engaged with the engaging hole 3
2 is fitted. In this fitted state, the saddle 15 is moved in the longitudinal direction of the work W (that is, in the X-axis direction) by the motor 14 constituting the driving means. Therefore, the clamp device 27, 28, 29 moves in the longitudinal direction of the work W in a state of being coupled to the saddle 15, and the motor 14 for moving the processing tool 22 in the longitudinal direction of the work W is provided by the clamp device 27, 28.
Also serves as a drive mechanism for moving 28 and 29. Such a shared configuration is simpler than a configuration provided with a dedicated drive mechanism for moving the clamp devices 27, 28, 29 in the X-axis direction. Further, the configuration employing the connecting means including the air cylinder 17 and the engaging rod 171 and the connecting means including the engaging hole 32 is significantly advantageous in terms of cost as compared with the dedicated driving mechanism. Moreover, it is possible to cope with automation of the processing apparatus. (1-2) When the clamp means is moved, the engagement rod 171 switched to the coupling position by the air cylinder 17 serving as the switching drive means fits into the engagement hole 32 and remains in this fitted state. The saddle 15 is moved by the motor 14 in the X-axis direction. The simplest configuration is that the air cylinder 17 serving as the switching driving means is attached to the existing saddle 15 serving as the driven body. (1-3) For the engagement rod 171, simple two-position switching control of switching between a coupling position engaged with the engagement hole 32 and a non-coupled position not engaged may be performed. Therefore, the air cylinder 17, which is a fluid pressure cylinder suitable for simple two-position switching control, is suitable as switching drive means for switching and disposing the engagement rod 171 between the non-coupling position and the coupling position. (1-4) Dog 331 by photoelectric sensors 181 to 184
The configuration in which the plurality of clamp means are individually determined by detecting .about.331 and 35 improves the reliability of the movement arrangement control of each clamp means.

Next, a second embodiment shown in FIG. 7 will be described. The same components as those in the first embodiment are denoted by the same reference numerals. In this embodiment, a rotary solenoid 37 is attached to the front surface of the saddle 15, and the crank-shaped engagement fork 371 is switched between a non-connection position indicated by a solid line and a connection position indicated by a chain line by the rotary solenoid 37. . An engaging pin 38 is fixed to the vertical portion 261 of the bracket 26. The engagement fork 371 at the coupling position moves the engagement pin 38 by the movement of the saddle 15.
And the engagement fork 371 in the non-coupling position does not engage with the engagement pin 38.

In this embodiment, the same effects as in the first embodiment can be obtained. Next, a third embodiment of FIG. 8 will be described. The same components as those in the first embodiment are denoted by the same reference numerals.

In this embodiment, the air cylinder 27
An engaging hole 391 is formed in the gripping body 39 driven by the saddle 1 and the saddle 1.
5 is fixed. In FIG. 8A, the gripping body 39 is at a position where the work can be carried in. In FIG.
The gripping body 39 is arranged at a position where the and the engagement pin 40 fit.

According to the third embodiment, the following effects can be obtained. (3-1) The same effect as in the first embodiment can be obtained. (3-2) Air cylinders 271, 281,
Since the clamping means 291 is also used, the cost can be further reduced.

In the present invention, it is also possible to arrange the clamping means at the clamping position after finishing the processing on a certain work, and to move the clamping means only when shifting to the processing on another kind of work.

In the present invention, if the position of each clamp means is stored in the memory of the control unit, the control unit calculates based on the storage of the position to avoid interference between the clamp means while avoiding interference between the clamp means. Can be moved,
A highly reliable system can be constructed.

The inventions other than those described in the claims which can be grasped from the above embodiment will be described together with the following effects. (1) The processing apparatus according to any one of claims 1 to 3, wherein a clamping means is used as the coupling means.

The cost reduction effect is the highest.

[0033]

As described in detail above, according to the present invention, the clamping means is moved and arranged by the driving means which moves and arranges the machining means, so that it is possible to deal with the automation of the machining apparatus without increasing the cost. It has excellent effects.

[Brief description of the drawings]

FIG. 1 shows the first embodiment, and FIG. 1 (a) is a partially broken side view showing a state in which an engagement rod is at a non-coupling position. (B)
FIG. 6 is a partially cutaway side view showing a state where the engagement rod is at a coupling position.

FIG. 2 is an overall plan view.

FIG. 3A is an enlarged plan cross-sectional view of a main part showing a state in which an engagement rod is at a non-coupling position with respect to a certain clamp means.
FIG. 4B is an enlarged plan cross-sectional view of a main part showing a state where the engagement rod is at a non-coupling position.

FIG. 4A is an enlarged plan sectional view of a main part showing a state in which the clamp means is moved to a clamp position. (B) is an enlarged plan sectional view of a main part showing a state where the engaging rod is at a non-coupling position with respect to another clamping means.

FIG. 5 is a flowchart showing a moving arrangement program.

FIG. 6 is a flowchart showing a moving arrangement program.

FIG. 7 is a perspective view of a main part showing a second embodiment.

FIG. 8 shows the third embodiment, and FIG. 8 (a) is a perspective view of an essential part showing an upper position where a gripping body is at a non-coupling position. (B) is a principal part perspective view showing the upper part where the gripping body is at the coupling position.

[Explanation of symbols]

14: a motor constituting a driving means, 15: a saddle as a driven body, 17 ... an air cylinder as a switching driving means,
171: engagement rods serving as engagement bodies, 27, 28, 29 ...
Clamping device, 271, 281, 291 Air cylinders constituting coupling means, 32 ... Engagement holes serving as coupled means,
37 ... rotary solenoid acting as switching drive means, 3
71 ... an engagement fork serving as a coupling means.

Claims (4)

(57) [Claims] 1. A processing means which is moved and arranged by a driving means in a longitudinal direction of a work to perform processing on a long work, and is moved in a longitudinal direction of the work to clamp and fix the work. In a processing apparatus provided with a clamp unit disposed, a driven body that supports the processing unit and is moved in a longitudinal direction of the work by the driving unit, and is provided on one of the clamp unit and the driven body. Provided coupling means, provided on one of the other of the clamp means and the driven body, the coupling means is switched to a coupled state to be coupled to the coupled means and a non-coupled state not coupled , The clamping means is in a coupled state with the driven body
A driving hand provided to move and arrange the processing means.
A processing device that is moved and arranged at any position by steps . 2. The apparatus according to claim 1, wherein a plurality of said clamping means are provided.
Pump means is provided by a photoelectric sensor provided on the driven body side.
And the moving arrangement of each clamping means is controlled.
The processing apparatus according to claim 1, wherein the processing is performed. 3. The coupling means includes an engaging body which is switched between a coupling position where the coupling means is coupled to the coupled means and a retracted position where the coupling means is not coupled, and switching drive means which switches and drives the engaging body. The processing device according to any one of claims 1 and 2. 4. The processing apparatus according to claim 3, wherein said switching drive means is a fluid pressure cylinder attached to said driven body.