JP2001315033A - Square pipe material four-side working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a square pipe material four-side working machine automatically controlling the pitch feeding of various types of machining on the whole face and automating the machine to the delivery after completing the machining of a work piece. SOLUTION: A fixed type carry-in/out device 3 is provided between transfer conveyers 2 having rollers 1 rotationally moving into a V shape is provided, and a moving type carry-in/out device 4 is provided on the other side. A body formed by providing a chip recovery groove 5 in the center, a screw conveyer 7 rotationally moved by a motor 6, and slide parts 8 and 9 on both sides respectively is provided. The body is provided with a fixed main spindle clamp unit 11 fitted and fixed to one of the slide parts. The slide part is provided with a moving sub-spindle clamp unit 13 having a slide bearing fitted thereto and slidably moving. Moving clamp devices 14 and 15 moving freely are provided between the fixed main spindle clamp unit and the moving clamp unit. The slide part is provided with a machining unit 17 having the slide bearing fitted thereto and set slidable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a process for automatically loading a square pipe (square steel pipe) such as a square or a rectangle and setting it by a clamp. The present invention relates to a four-sided prism pipe processing machine capable of automatically performing a pitch feed control on each entire surface of a work by turning over the work and automatically carrying out work after the work is completed.

[0002]

2. Description of the Related Art Conventionally, when drilling a hole in a square pipe. A punch was punched with a mark by applying a scale, and drilling and the like were performed with a drill in accordance with the punched hole.
Further, as shown in FIG. 34, the work (18) (square pipe) is fixed with a vice (88), and drilling or the like is performed with a drill (89).

[0003]

Therefore, there are the following drawbacks. (A) The marking work was laborious, time-consuming and troublesome. (B) For large machine tools, drill hole drilling, end mill slot drilling, tap screw processing, etc., required re-setting of the work for each side of the process, requiring time and effort for setup work. The present invention has been made to solve the above drawbacks.

[0004]

The means for solving the problem will now be described with reference to the drawings. (A) In FIGS. 1, 2 and 3, a conveyor provided with a roller (1) that rotates in a V-shape. (2) Several are provided side by side. (B) A fixed loading / unloading device (3) is provided between the transport conveyors (2), and a mobile loading / unloading device (4) is provided on the other side. (C) A chip collecting groove (5) is provided at the center, and a screw conveyor (7) which is rotated by a motor (6) is provided in the chip collecting groove (5), and a slide portion (8) is provided on each side.
A body (10) formed by providing (9) is provided. (D) On the main body (10), the fixed spindle clamp unit (11) is attached and fixed to one side on the slide portion (8) side. (E) In the slide portion (8), a slide bearing (12) is attached, and a movable sub-spindle clamp unit (13) that is slidable is provided. (F) The movable clamp devices (14) and (15) which freely move between the fixed spindle clamp unit (11) and the movable clamp unit (13) are provided. (G) At the slide portion (9), there is provided a processing unit (17) to which a slide bearing (16) is attached and which can slide. The present invention is a rectangular pipe material four-side processing machine having the above configuration.

[0005]

Embodiments of the present invention will be described below. (A) As shown in FIG. 4, the roller (1) of the conveyor (2) is provided in a V-shape, so that a prismatic work (18)
Can be stably transported because the roller (1) supports two surfaces. The conveyor (2) is fixed to a table (19). (B) As shown in FIG. 5, a fixed loading / unloading device (3)
A vertical cylinder (21) is attached to the center of the table (20), and guide shafts (22) are provided on both sides.
The guide shaft (2) that also moves with the retraction cylinder (23)
4) is provided, and the arm (26) provided with the receiving portion (25) of the V-shaped groove for receiving the work (18) is fixed. The mobile loading / unloading device (4) is the fixed loading / unloading device (3).
A caster (27) is provided for moving under the table (3). (C) As shown in FIGS. 7 and 8, in the fixed spindle clamp unit (11), the chuck (2
A main shaft (29) to which 8) is attached is provided rotatably, and a cylinder (30) for opening and closing the chuck (28) is attached to one side by a connection pipe (31). A brake (32) is provided on the main shaft (29). Also, a servo motor (33) for controlling the rotation of the main shaft (29) is provided and the pulley (34) is provided.
And the pulley (35), and the belt (36). A receiving table (37) for receiving the work (18) is slidably provided in front of the chuck (28), and a payout section (38) for the work (18) having a projection is provided inside the receiving table (37). Attach and connect with connecting rod (40) provided with access cylinder (39) on the other side. (D) As shown in FIGS. 9 and 10, in the movable sub spindle clamp unit (13), a slide bearing (12) is provided between the main body (10) and the movable sub spindle clamp unit (13). Other than the fixed spindle clamp unit (11), a spindle (29) having a chuck (28) that opens and closes at the tip is rotatably provided, and a cylinder (30) that opens and closes the chuck (28) is mounted on one side. , Connecting pipe (31). A brake (32) is provided on the main shaft (29). Also, a servomotor (33) for controlling the rotation of the main shaft (29) is provided, the pulley (34) and the pulley (35) are mounted, and the belt (36) is mounted.
A receiving table (37) for receiving the work (18) is slidably provided in front of the chuck (28), and a payout section (38) for the work (18) having a projection is provided inside the receiving table (37). Attachment, the other side is provided with an access cylinder (39) and connected by a connecting rod (40). (E) As shown in FIG. 11, in the movable sub spindle clamp unit (13), the main body (1) is slid.
Attach a rack (42) to 0), provide a pinion (43) that engages with it, fix it to a shaft (44), and connect a shaft (46) to a traveling servomotor (45) to connect a gear (47).
Combine (48). Also, an electromagnetic torque brake (49) is attached to the end of the shaft (44). Also, a chip cover (50) is provided at an angle. (F) As shown in FIGS. 12 and 13, the moving clamp device (14) is on the left side and the moving clamp device (15) is on the right side, and both have the same structure, and one of the moving clamp devices (14) In the description, a main body (10) is provided with a moving clamp device main body (51) running on a slide bearing (12), a pinion (52) engaging with a rack (42) is provided and fixed to a shaft (53). The gears (55) and (56) are combined with the traveling motor (54). At the end of the shaft (53), an electromagnetic brake (57) is attached.
Also, a lower work receiver (5) supporting the work (18) from below.
8) A (58), a motor (59) (59), a horizontal work receiver (60) supported from the side, a clamp (62) for clamping the work (18) from an angle, and a motor (63) are provided. (G) Next, the work receiver will be described in detail. FIG. 14 shows a lower work receiver (58), in which a screw (65) is provided below the vertically moving main shaft (64), and the screw (6) is provided.
A worm wheel (66) screwed into 5) is provided, and a worm (6) engaged with the worm wheel (66) is provided.
7) is connected to the engagement motor (59). A thrust bearing (10) is provided under the worm wheel (66).
0), a flange (68) is provided therebelow, and a load cell (69) is provided therebelow. (H) Next, FIG. 15 shows a horizontal work receiver (60), in which a screw (65) is provided after a main shaft (64) that enters and exits sideways, and a gear (70) screwed into the screw (65). A gear (71) meshing with the gear (71) is provided, and the gear (71) is connected to the motor (61). A thrust bearing (100) is provided after the gear (70), and then a flange (6).
8), and a load cell (69) is provided. (I) As shown in FIG. 16 and FIG. 17, an intermediate slide (41) moving in the longitudinal direction is used in various processing, for example, a processing unit (17) for drilling, tapping, end milling, slotting, and the like. A slide bearing (72) is mounted thereon, and a column (73) is provided on the slide bearing so as to be able to slide in and out.
A spindle unit (75) is rotatably provided on the slide portion (74) by a motor, and a vertical motor (76) is provided on the column (73). Also, an arm (78) is attached from the intermediate slide (41), a traveling motor (79) is attached, and a pinion (80) is attached to a shaft of the motor (79), and a rack (81) engaged with the pinion (89). To the mounting plate (82) downward.
For the entry and exit of the intermediate slide (41), an entry / exit motor (83) is attached and driven by a ball screw shaft (84). (G) As shown in FIG. 18, since the processing unit (17) moves, a steel cover (8) provided with winding devices (85) and (85) on both sides so that chips do not enter the slide portion or the like.
6) Attach (86) to the processing unit (17). The present invention is configured as described above.

When the present invention is used, the work (18) conveyed by the conveyor (2) is received by a receiving portion (25) provided on an arm (26) as shown in FIG. Moving forward, as shown in FIG.
The work (18) is transported to the center of and stopped. The clamp claw (87) is in a closed state. This portion (90) is provided on the clamp claw (87). Next, as shown in FIGS. 20 and 21, the movable sub spindle clamp unit (13) moves forward, the clamp pawl (87) opens, and the clamp is fixed inside the work (18). Then, as shown in FIG.
Descends and retreats. The pressing force at both ends of the work (18) is controlled by an electromagnetic torque brake (49). The work (18) is rotated by a servomotor (33) and controlled so as to make the processing surface of the work (18) vertical, as shown in FIG. 22, and is held by a brake (32). And FIG.
As shown in FIG. 2, FIG. 13, FIG. 14, and FIG.
On the lower surface of 8), the lower work receivers (58) and (58) sense that the main shaft (64) has rotated upward by the motors (59) and (59) and contacted by the load cell (69), and stopped and stopped. 18) Support the lower surface. Next, a horizontal work receiver (60) is provided on a lateral surface of the work (18) by a motor (61) with a spindle (6).
4) is turned up and comes in contact with the load cell (69) to detect the contact and stop to support the lateral surface of the work (18).
Then, as shown in FIG.
Driving in 3), the clamp (62) comes out and the work (18)
And fix the work (18). Then, as shown in FIG. 23, the column (73) moves forward and, as shown in FIG. 23, for example, drills and drills on all four sides with a drill (89).
As shown in the figure, the clamp claw (87) is closed and the work (1) is closed.
8) is received by the descending cradle (37), and as shown in FIG.
The cradle (37) comes out and the work (1)
8), the arm (26) moves forward, ascends, receives the work (18), and retreats, as shown in FIG. 35, and places the work (18) on the down conveyor (2). .

[0007] The work (18) that has been processed is cut (95) into dimensions as shown in FIG.

The spindle unit (75) is shown in FIG.
As shown in 6, a turret unit (97) is a freely rotating and processing tool, a drill (89) and a tap (96).
In addition, various types of processing can be efficiently performed by using an end mill, a reamer, or the like that can be mounted radially.

As shown in FIG. 27, the work (18) can also process a rectangular pipe.

[0010] As shown in Fig. 28, the work (18) can be machined by a round pipe.

As shown in FIG. 29, the work (18) can be processed by a round bar. In this case, as shown in FIG. 31, the outer diameter can be clamped with a three-jawed chuck (99).

As shown in FIG. 30, the work (18) can be machined by a square bar.

As shown in FIG. 32, the work (18) can be clamped by four clamp claws (87) from the inner diameter of the work (18).

As shown in FIG. 33, the corner of the work (18) can be clamped with four clamp claws (87) from the outside diameter.

In the clamp claw (87), this portion (9
0) can be used without it.

Slide bearings (12) (16) (7)
2) There are various types such as a linear slide and a ball bearing slide, and any of them may be used.

The steel cover (86) is used to allow a person to ride on the steel cover (86) for setup and cleaning depending on the work content.

In the moving clamp devices (14) and (15), the work (18) is held by the lower work receivers (58) and (5).
8) When the lateral work receiver (60) comes into contact with the surface of the work (18), the contact pressure (stress) is measured by a load cell (69) (also referred to as a strain gauge), and the work (18) is held without being bent. Each time the machining of each surface of the work (18) is completed, the lower work receiver (58) is lowered and the horizontal work receiver (6) is lowered.
0) is pulled, the work (18) is rotated and stopped in a state perpendicular to the surface to be processed next, and the lower work receiver (58) is raised,
The horizontal work receiver (60) comes out and holds the work (18). In addition, the moving clamp device (15) moves the work (18) near the processing unit (17) in accordance with the movement of the processing unit (17).
By moving so as to hold the work (1)
8) is held accurately, and there is no escape or bending of the work (18) during processing, so that accurate processing can be performed. Therefore, since the work (18) conveyed to the conveyor (2) is processed fully automatically by a built-in machine program from loading, processing and unloading, labor is greatly reduced and processing time is shortened and accuracy is reduced. Processing. With regard to the processing dimensions, various types of feed processing such as constant pitch feed and different pitch feed are also possible.

Since the length of the machine of the present invention is large, it cannot be drawn horizontally, so it is drawn vertically long. Therefore, the figure viewed from the arrow A shows the front of the present invention. However, in the description of the drawings, FIG. 1 is a plan view,
2 is a side view, and FIG. 3 is a front view.

[0020]

(A) Work transfer, loading, processing, unloading, and automation for the next process are performed, resulting in significant labor and labor savings. (B) Once the work is set, the four sides of the work can be processed continuously. (C) Combination of programs such as constant pitch and different pitch machining can be done freely. (D) Drill hole drilling, end mill slot drilling, vertical tapping, and other various processing can be performed. (E) A wide range of workpieces (materials) including polygonal pipes such as square pipes (square steel pipes), rectangular pipes (deformed square steel pipes), round pipes, square bars, round bars, rectangular bars, plate materials, hexagons, etc. Can be used. Also, the present invention can be applied to the processing of materials having irregular shapes such as aluminum extrusion building materials, building materials such as iron, steel, and resin.

[Brief description of the drawings]

FIG. 1 is an overall plan view of the present invention.

FIG. 2 is an overall side view of the present invention.

FIG. 3 is an overall front view of the present invention.

FIG. 4 is an enlarged front view of a part of the conveyor according to the present invention.
Also, the work is shown with imaginary lines

FIG. 5 is an enlarged front view of a fixed loading / unloading device according to a part of the present invention. Also, the operation is shown by imaginary lines

FIG. 6 is a plan view of the present invention as viewed in the direction of arrow B in FIG. 5; Also, the operation is shown by imaginary lines

FIG. 7 is an enlarged sectional view of a part of the fixed spindle clamp unit according to the present invention. In addition, the clamping state of the work is indicated by imaginary lines.

FIG. 8 is a front view of the present invention as viewed in the direction of arrow C in FIG. 7;

FIG. 9 is an enlarged cross-sectional view of the movable sub spindle clamp unit of the present invention. In addition, the clamping state of the work is indicated by imaginary lines.

10 is a front view of the present invention as viewed from the direction of arrow D in FIG. 9;

FIG. 11 is an enlarged cross-sectional view showing a driving part and a screw conveyor part of the sliding movement of the movable sub spindle clamp unit viewed from the front in FIG. 1 of the present invention. Partly shown with imaginary lines

FIG. 12 is an enlarged plan view of the moving clamp device of the present invention.
Also, the work is shown with imaginary lines

FIG. 13 is an enlarged front view of the moving clamp device of the present invention.
Further, the driving portion is shown in a sectional view. Also, the work is shown with imaginary lines

FIG. 14 is an enlarged sectional view of a driving portion of a lower work receiver in the moving clamp device main body of the present invention.

FIG. 15 is an enlarged cross-sectional view of a driving portion of a horizontal work receiver in the moving clamp device body of the present invention.

FIG. 16 is an enlarged front view of a processing unit and a driving portion of the present invention as viewed from the front in FIG. 1;

17 is a right side view showing a sliding portion of the present invention viewed from the right side in FIG. 16;

FIG. 18 is a reduced right side view of the steel cover viewed from the right side in FIG. 1 of the present invention.

FIG. 19 is an enlarged side view showing a state where the work is carried into the center of the chuck in the present invention.

FIG. 20 is an enlarged side view showing a state where the work is clamped by the chuck in the present invention.

21 is a sectional view taken along line EE in FIG. 20 in the present invention.

FIG. 22 shows a state in which the work is rotated and the surface of the work is vertical and drilled in the present invention.

FIG. 23 is an enlarged side view of a part showing a state in which the chuck is closed, the work is lowered, and the work is received by the cradle after the work is processed in the present invention.

FIG. 24 is an enlarged side view of a part showing a state in which the work is dispensed by the dispensing section in the present invention.

FIG. 25 is a perspective view showing examples of variously processed workpieces according to the present invention.

FIG. 26 is a front view showing another embodiment of the present invention.

FIG. 27 is a sectional view showing an example of a work that can be processed in the present invention.

FIG. 28 is a sectional view showing an example of a work that can be processed in the present invention.

FIG. 29 is a sectional view showing an example of a work that can be processed in the present invention.

FIG. 30 is a sectional view showing an example of a work that can be processed in the present invention.

FIG. 31 is a front view showing another embodiment of the chuck for clamping a work according to the present invention.

FIG. 32 is a front view showing another embodiment of the chuck for clamping a work according to the present invention.

FIG. 33 is a front view showing another embodiment of the chuck for clamping a work according to the present invention.

FIG. 34 is a perspective view showing a conventional processing method and a work clamping method.

FIG. 35 is a process diagram showing one step of carrying out the work after the work such as boring is completed in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roller 2 Conveyor 3 Fixed loading / unloading device 4 Mobile loading / unloading device 5 Chip recovery groove 6 Motor 7 Screw conveyor 8 Slide section 9 Slide section 10 Main body 11 Fixed spindle clamp unit 12 Slide bearing 13 Moving sub spindle clamp unit Reference Signs List 14 moving clamp device 15 moving clamp device 16 slide bearing 17 processing unit 18 work 19 units 20 units 21 cylinder 22 guide shaft 23 cylinder 24 guide shaft 25 receiving part 26 arm 27 caster 28 chuck 29 main shaft 30 cylinder 31 connecting pipe 32 brake 33 servo Motor 34 Prey 35 Prey 36 Belt 37 Receiving stand 38 Dispensing section 39 Access cylinder 40 Connecting rod 41 Intermediate slide 42 Rack 43 Pinion 44 Shaft 4 5 Travel Servo Motor 46 Shaft 47 Gear 48 Gear 49 Electromagnetic Torque Brake 50 Chip Cover 51 Moving Clamping Device Body 52 Pinion 53 Shaft 54 Traveling Motor 55 Gear 56 Gear 57 Electromagnetic Brake 58 Lower Work Receiver 59 Motor 60 Lateral Work Receiver 61 Motor 62 Clamp 63 Motor 64 Main shaft 65 Screw 66 Worm wheel 67 Worm 68 Flange 69 Load cell 70 Gear 71 Gear 72 Slide bearing 73 Column 74 Slide part 75 Spindle unit 76 Vertical motor 77 Ball screw shaft 78 Arm 79 Traveling motor 80 Pinion 81 Rack 82 Mounting plate 83 Inlet / outlet motor 84 Ball screw shaft 85 Retractor 86 Steel cover 87 Clamping claw 888 vise 89 Drill 90 Contact part 91 Part 92 AnaAkira 93 slot 94 taps elevation 95 cut 96 tap 97 turret unit 98 Rectangular 99 3-jaw chuck 100 thrust bearing

Claims (2)

[Claims] (1) A conveyor (2) provided with a roller (1) that rotates in a V-shape is provided. (B) A fixed loading / unloading device (3) and a movable loading / unloading device (4) are provided so that the arm (26) provided with the receiving portion (25) can move up and down and move forward and backward. (C) In the main body (10), a chip collecting groove (5) is provided at the center.
And a screw conveyor (7) rotated by a motor (6). (D) In the main body (10), a slide portion (8) and a slide portion (9) are provided, and a fixed spindle clamp unit (11) is attached and fixed to the main body on the slide portion (8) side. (E) In the fixed spindle clamp unit (11), the spindle (29) that rotates in conjunction with the servo motor (33).
A chuck (28) that opens and closes is attached to the tip of the, and a brake (32) is provided. On the other side, a cylinder (30) is provided and connected to the chuck (28) by a connecting pipe (31). or,
A receiving stand (37) is provided in front of the chuck (28), and an access cylinder (39) is provided on the other side, and a connecting rod (4) is provided.
0). (F) A movable sub-spindle clamp unit (13) that slides is provided on the slide portion (8). In the moving sub spindle clamp unit (13), the servo motor (3
3) A chuck (28) that opens and closes is attached to the tip of a main shaft (29) that rotates in conjunction with it, and a brake (32) is provided. On the other side, a cylinder (30) is provided and a connecting pipe (3
In 1), it is connected to the chuck (28). In addition, chuck (2
A receiving table (37) is provided before and after 8), and the receiving cylinder (39) is connected to the other by a connecting rod (40). Then, the rack (42) is attached to the slide portion (8). A pinion (43) meshing with the pinion is provided, and an electromagnetic torque brake (49) is provided which is rotated by a traveling servomotor (45). (G) In the movable clamp devices (14) and (15), a movable clamp device main body (51) that slides on the slide portion (8) of the main body (10) is formed, and a lower work receiver (58) is attached below. A main shaft (64) is provided and screws (6
5) is provided, a worm wheel (66) screwed into the screw (65) is provided, and a worm (67) rotated by a motor (59) is engaged. Worm wheel (6
6) A thrust bearing (100) is provided below, and a load cell (69) is provided thereunder. Also, a main shaft (64) having a horizontal work receiver (60) is provided laterally, a screw (65) is provided at the rear, a gear (71) screwed into the screw (65) is provided, and the motor (59) is rotated. Gear (7
0) is provided. A thrust bearing (100) is provided behind the gear (71), and thereafter a load cell (6) is provided.
9) is provided. (H) An intermediate slide (41) that slides is provided on a slide portion (9) provided on the main body (10), an arm (78) is attached to the intermediate slide (41), and a traveling motor (79) is provided to provide a pinion ( 80) is attached, and a rack (81) is provided and engaged. (I) A column (73) that slides back and forth on the intermediate slide (41) is provided, and the column (73) is advanced by a ball screw shaft (84) attached to the access motor (83).
Control retreat. Column (73) vertical slide (7
4), a spindle unit (75) that slides by its vertical slide portion (74) is provided, and a vertical motor (76) is provided to provide a ball screw shaft (7).
7) to control the vertical sliding movement of the spindle unit (75). (G) Steel covers (86) are attached to both sides of the processing unit (17), and the winding devices (8) are attached to both ends of the main body (10).
5) Provide (85). A prismatic pipe material four-side processing machine having the above configuration. In the present invention, the motor (59) (6)
1) (63) Traveling motor (79) Vertical motor (7
6) The four-sided processing machine according to claim 1, wherein the access motor (83) is a servo motor or a pulse motor.