JPH0657546U - Work feeding device and work feeding chute for processing machine - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the machining efficiency of a tandem-type multi-workpiece simultaneous machining machine to the utmost limit, a feed device for a multi-workpiece simultaneous machining machine and a work supply chute for the same machine with improved work feed efficiency. I will provide a. [Structure] Multiple units (n units) installed in a row in a line
Is a walking beam type work feeding device that feeds the work to the machining device. This apparatus is provided with a plurality of work support parts 12
The fixed beam 13 and the carrier beam 11 are provided, and the pitch of the work supporting portions of each beam is the installation pitch MP of the plurality of processing devices and the center of the processing devices installed on the most upstream side of the line. It is configured by an escape distance NL (shorter than MP) with an unprocessed work center closest to this processing device. Here the carrier beam 11
Feed pitch OP is OP = MP × (n−1) + NL. By doing this, the work feed distance can be minimized.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a so-called work feeding device for simultaneous machining of a plurality of works and a work supply chute for the same device, in which two or more processing devices such as automatic both-end or one-end processing machines are arranged in a line in a line (tandem).

[0002]

[Prior art]

 FIG. 4 is a diagram showing an outline of a conventional multi-work simultaneous processing machine (two-cavity processing machine) and its work feeding device. A work 53 such as a pipe machine or a round bar machine is sent to the left side of the figure by a walking beam 51. The workpiece 53 is processed by the processing device 50, 51 'such as an end face cutting machine. Here, two processing devices 50 and 50 'are arranged in tandem to perform the same processing (the processing may be different). Such a processing device is called a double-edged processing machine and has a high work efficiency.

[0003]

[Problems to be solved by the device]

 As shown in FIG. 4, the walking beam of the feeding device of the two-cavity processing machine is provided with the work holding parts 52 (A to F) at the same pitch as the machine pitch MP of the processing machine. By reciprocating this walking beam one pitch at a time, the work is sent one pitch to the left. At this point, the walking pitch must be fed twice by one pitch and twice as much as the MP distance from the end of processing with two processing devices to the start of the next processing. If the walking beam feed pitch is once and twice the machine pitch (2MP), the number of feeds is only one, but the feed distance is still 2MP. For this reason, it took a long time to feed the work pieces, and it was not possible to sufficiently improve the capability of the two-piece processing machine.

In order to improve the machining efficiency of a tandem type multi-workpiece simultaneous machining machine to the utmost limit, the present invention provides a feed device for a multi-workpiece simultaneous machining machine and a work supply chute for the same machine, which have improved work feed efficiency. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the work feeding device of the present invention is a walking beam type work feeding device for feeding works to a plurality (n) of processing devices arranged in a line in a line; It has a fixed beam provided with a work supporting part and a carrier beam; the pitch of the work supporting part of each beam is the installation pitch MP of the above-mentioned plurality of processing devices and the center of the processing devices installed on the most upstream side of the line. And the clearance distance NL (shorter than MP) to the unworked work center closest to this processing device; the feed pitch OP of the carrier beam is OP = MP × (n-1) It is characterized by being + NL.

Further, the work supply chute of the present invention is a chute for supplying a plurality of works spaced apart from each other by a predetermined distance to the walking beam type work feeding device; a first stopper for stopping the works on the chute surface. And a second stopper provided on the downstream side of the chute of the first stopper, and a crossover means for allowing the work to climb over the first stopper; and the work stopped at the first stopper and the first stop. It is characterized in that the work stopped at the two-stopper unit is supplied to two work support units provided on the transport beam in accordance with the movement of the transport beam.

[0007]

[Action]

 The operation of this device will be described for the case of n = 2 (two-cavity processing machine). The pitch of the work supporting portion provided on the beam is composed of a machine pitch and a clearance distance alternately with MP, NL, MP, NL, .... The relief distance NL is the center distance between the machining center and the machining center that is required to prevent the interference between the workpiece closest to the rotating head of the machining apparatus and the machining-waiting workpiece. This distance is generally shorter than the machine pitch MP. If the work support pitch of the beam is configured in this way and the feed pitch OP of the carrier beam is set to MP + NL, two works can be fed by a relatively short feed, as will be better understood in the following description with reference to the drawings. The length can be supplied to two processing machines at the same time.

[0008]

【Example】

 A work feeding device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a main part of a work feeding device of a two-edged end surface processing machine according to an embodiment of the present invention. This two-piece machining machine has a first machining apparatus and a second machining apparatus installed upstream of the work feeding. The carrier beam 11 of the feeder is provided with a plurality of V-shaped or concave workpiece holders 12 (A to G). The workpiece holder A is located at the center of the first processing device, B is located at the center of the second processing device, and the center-to-center distance between A and B is the center-to-center distance MP of the first and second processing devices. be equivalent to . Here, the work 1-1 and the work 2-1 are in a state of being supported and processed by the work chuck portions 31 and 32. Work 1-X (single circle in the figure) indicates a group machined by the first machining apparatus, and work 2-Y (double circle in the figure) represents a group machined by the second machining apparatus.

The work holding unit C holds the work closest to the second processing device. The distance between the center of the second processing device and the center of C must be at least such that the work in C does not interfere with the second processing device. However, if this dimension becomes long, the feed distance will increase and feed time will become longer as described below, so it is better to make it as short as possible. Such an appropriate distance is referred to herein as a clearance distance NL. This clearance distance NL is generally shorter than the machine pitch MP.

A work holding portion D is provided on the right side (upstream of feed) of the work holding portion C by MP. It is assumed that the machining of the work by the first and second machining devices (positions A and B) is completed. At this time, the carrier beam 11 rises, and the work 1-1 and the work 1-2 held by the first work chuck unit 31 and the second work chuck unit 32 are lifted by the beam. Similarly, the work 1-2 and the work 2-2 held by the holding portions C ′ and D ′ of the fixed beam 13 are also lifted. Next, the carrier beam 11 moves forward only by the feed pitch OP to the left side in the figure. Here, OP = MP + NL. After the forward movement, the work 1-2 (C) in the figure comes to the position of the work 1-1 (A) before the movement, and the work 2-2 (D) becomes the work 2-1 (B) before the movement. Come to position. When the carrier beam 11 descends here, new unworked workpieces 1-2 and 2-2 are held by the workpiece chucks 31 and 32 and the machining can be started. During processing, the transport beam 11 returns while returning to its original position (state shown in the figure).

As described above, the feeding device of the embodiment of the present invention operates, but since the clearance distance NL is generally smaller than MP, OP = MP + NL <2MP. That is, the feed pitch can be made smaller than in the case where the entire beam pitch is simply MP. This immediately leads to a reduction in the time required for feeding, and the cycle time of the entire processing equipment can be shortened.

The feeding device of this embodiment was able to shorten the cycle time by about 1.5 to 3 seconds as compared with the conventional device. This value has significant significance in this type of high productivity machine. Also, it was effective in reducing troubles during work transfer, shortening the length and weight of the feeder.

A drive mechanism of the carrier beam 11 of this embodiment will be described. The carrier beam 11 is attached to the carrier slide base 41. The transport slide base 41 reciprocates left and right in the drawing on the transport guide plate 43 on the upper surface of the ascending / descending table 45. The lift table 45 is guided by a lift guide plate 47 provided upright on the side surface of the base 49 to move up and down. Various actuators for these movements may be used, such as hydraulic or pneumatic cylinders, rack and pinion, screws, ball screws and the like. Further, the beam guide mechanism is not limited to the mechanism of this embodiment.

A work supply chute for supplying a work to the feeding device of this embodiment will be described. The work holding portions F and G on the right end side of the carrier beam shown in FIG. 1 serve to receive the work from the work shoot 20. In the work chute 20, the work 1-4 and the work 2-3 are located on the upper right side of the first stopper 21 and the upper right side of the second stopper 22 by abutting against the respective stoppers by a mechanism as described later. There is. These work centers and the centers of the work holding portions G and F of the beam 11 are substantially coincident with each other. When the beam 11 rises in this state, the work is held by each work holding portion and lifted from the chute. After that, the beam moves to the left side, and the work 2-3 and the work 1-4 are carried away from the chute.

FIG. 2 is a diagram for explaining the movement of the work in the work supply chute 20 of FIG. When the work 1-4 is removed from the state shown in FIG. 1, the space of the work 1-4 becomes clear, and the work 2-4 rolls into the space and comes into contact with the first stopper 21 and stops. ((A) in the figure). Here, the work supply knockers 25 (driving the air cylinder 27) provided on both sides of the chute 20 come up and lift up both ends of the work 2-4 ((B) in the figure). The work 2-4 rolls down to the lower left due to its own weight, contacts the second stopper 22, and stops. When the work supply knocker 25 goes down, the next work 1-5 rolls, comes into contact with the first stopper 21, and stops. In this way, the preparation of the work to be supplied to the carrier beam next time is completed on the chute 20. The horizontal center-to-center distance between the work 2-4 and the work 1-5 is substantially equal to the clearance distance NL ((C) in the figure).

FIG. 3 is a diagram showing how the positions of the stoppers 21 and 22 of the chute 20 and the positions of the work separator 15 and the work supply knocker 25 are adjusted according to the work size. When handling large-sized workpieces 1 and 2, the stoppers 21 and 22 (integrally movable with horizontally long hole jaws) are moved to the lower left in the chute 20, as shown in FIG. When handling small-sized works 1 and 2, the stopper is moved to the upper right in the chute 20 as shown in (B) of the figure. As a result, the center of the work is aligned with the center of the carrier beam 11.

The work separator 15 (projecting piece according to claim 3 of the claims) is attached to the carrier beam 11 by a lock handle 17 or the like, and the right end thereof projects from the beam main body in the upstream direction. The work separator 15 is combined with the notch 16 at the most upstream end in the feeding direction of the beam 11 to form a work holding portion (G portion in FIG. 1) which is a triangular or L-shaped concave portion. The protrusion amount of the separator 15 can be adjusted by sliding the adjustment groove 18 of the separator with respect to the lock handle 17. The protrusion amount of the separator 15 is large for a large work ((A) in the figure) and small for a small work ((B) in the figure). In short, it is adjusted so that when the beam 11 rises, the work holding portion G surely lifts only one of the left ends of the work that is in contact with the stopper 21 of the chute 20. The right end position of the work supply knocker 25 is adjusted in the same way.

In the present embodiment, the case of the two-cavity processing machine has been described, but the basic concept of the feeding device and the supply chute of the present invention can be used even when the three-cavity machining is performed and the four-cavity machining is performed.

[0019]

[Effect of device]

 As is clear from the above description, the work feeding device of the present invention contributes to shortening the processing cycle time in a tandem type multi-work simultaneous processing machine. In addition, it is possible to shorten the length of the feeder and reduce the weight. Further, the work supply suit of the present invention is suitable for the work feeding device of the present invention.

[Submission date] February 5, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

[Prior art]

FIG. 4 is a diagram showing an outline of a conventional multi-work simultaneous processing machine (two-cavity processing machine) and its work feeding device. A work 53 such as a pipe material or a round bar material is sent to the left side of the drawing by the walking beam 51. The workpiece 53 is processed by the processing device 50, 51 'such as an end face cutting machine. Here, two processing devices 50 and 50 'are arranged in tandem to perform the same processing (the processing may be different). Such a processing device is called a double-edged processing machine and has a high work efficiency.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[0007]

[Action]

The operation of this device will be described for the case of n = 2 (two-cavity processing machine). The pitch of the work supporting portion provided on the beam is composed of a machine pitch and a clearance distance alternately with MP, NL, MP, NL, .... Relief distance NL is the distance between the processing device center and the work center needed to prevent interference between the workpiece and the machining waiting workpiece rotation f head of the processing device is closest. This distance is generally shorter than the machine pitch MP. If the work support pitch of the beam is configured in this way and the feed pitch OP of the carrier beam is set to MP + NL, two works can be fed by a relatively short feed, as will be better understood in the following description with reference to the drawings. The length can be supplied to two processing machines at the same time.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

【Example】

A work feeding device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a main part of a work feeding device of a two-edged end surface processing machine according to an embodiment of the present invention. This two-piece machining machine has a first machining apparatus and a second machining apparatus installed upstream of the work feeding. The carrying beam 11 of the feed device, the workpiece holding portion 12 in which the V-shaped or concave shape, or the like (A-G) is provided with a plurality. The workpiece holder A is located at the center of the first processing device, B is located at the center of the second processing device, and the center-to-center distance between A and B is the center-to-center distance MP of the first and second processing devices. be equivalent to . Here, the work 1-1 and the work 2-1 are in a state of being supported and processed by the work chuck portions 31 and 32. Work 1-X (single circle in the figure) indicates a group machined by the first machining apparatus, and work 2-Y (double circle in the figure) represents a group machined by the second machining apparatus.

[Brief description of drawings]

FIG. 1 is a side view showing a main part of a work feeding device of a two-end working machine according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating movement of a work on the work supply chute 20 of FIG.

FIG. 3 shows positions of stoppers 21 and 22 of a chute 20 and a work separator 15, which correspond to a work size.
FIG. 9 is a diagram illustrating a state in which the position of the work supply knocker 25 is adjusted.

[Fig. 4] Conventional multi-work simultaneous processing machine (two-cavity processing machine)
It is a figure showing the outline | summary of its and the work feeding device.

[Explanation of symbols]

1 First Series Work 25 Work Supply Knocker 2 Second Series Work 27 Air Cylinder 11 Transport Beam 31 First Work Chuck Part 12 Work Holding Part 32 Second Work Chuck Part 13 Fixed Beam 41 Transfer Slide Base 14 Work Holding Part 43 Transfer Guide Plate 15 Work separator 45 Elevating table 16 Notch 47 Elevating guide 17 Lock handle 49 Base 18 Adjusting groove 50, 50 '
Processing device 20 Work chute 51 Walking beam 21 First stopper 52 Work holding part 22 Second stopper 53 Work

Claims (3)

[Scope of utility model registration request] 1. A plurality of (n) installed in a column in one line
A work beam feeding device of a walking beam type for feeding a work to a processing device; a fixed beam provided with a plurality of work supporting parts and a carrier beam; and the pitch of the work supporting parts of each beam is as described above. It is configured by the installation pitch MP of a plurality of processing devices and the clearance distance NL (shorter than MP) between the center of the processing device installed on the most upstream side of the line and the unprocessed work center closest to this processing device. Cage: The feed pitch OP of the carrier beam is OP = MP × (n−1) + NL. 2. A chute for supplying a plurality of works spaced apart from each other by a predetermined distance to a walking beam type work feeding device; a first stopper for stopping the works on a chute surface, and a chute of the first stopper. It has a second stopper provided on the downstream side, and a crossover means for taking a work and climbing over the first stopper; the work stopped by the first stopper portion and the work stopped by the second stopper portion. The work supply chute is characterized in that and are supplied to two work support portions provided on the transfer beam in accordance with the movement of the transfer beam. 3. The work feeding device according to claim 1, further comprising a work feeding chute according to claim 2, wherein the first and second stopper positions of the work feeding chute are set according to a work size. The workpiece support provided on the most upstream side of the carrier beam has a concave shape formed by a cutout portion of the beam body and a projecting piece protruding in the upstream direction from the beam body. Here, the protrusion amount of the protrusion is configured so as to be adjustable according to the work size; by adjusting the protrusion amount of the stopper and the protrusion, the protrusion amount of the protrusion and the second stopper is adjusted. A work feeding device for a processing machine, in which a work beam that rises from below the chute lifts the work that has stopped in contact with it with its work support.