A workpiece straightening production line

By designing a workpiece alignment assembly line including an annular conveyor, a 3D visual scanning station and a workpiece alignment station, the problem of low workpiece alignment efficiency in the prior art is solved, and the rapid and automatic alignment of the workpiece is achieved, and the workpiece is improved.

CN119407501BActive Publication Date: 2025-04-08YALONG INTELLIGENT EQUIP GRP CO LTD
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Patent Information

Application Number
CN202510019552.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-04-08
Estimated Expiration
2045-01-07

AI Technical Summary

Technical Problem

In the existing workpiece alignment assembly line, the workpiece needs to be manually rectified during transportation, resulting in high labor intensity and low efficiency.

Method used

A workpiece alignment assembly line is designed, including an annular conveyor, a 3D visual scanning station and a workpiece alignment station. Through the 3D visual scanning station scanning the workpiece posture, the robot sends the workpiece clip to the tilt table, and uses structures such as slopes and clamping surfaces to achieve automatic paralleling of the workpiece.

Benefits of technology

The rapid alignment of workpieces has been achieved, the work efficiency has been improved, and the labor intensity has been reduced. The system can adapt to workpieces of different specifications and sizes, and has strong adaptability.

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Abstract

The present invention relates to a workpiece alignment production line, comprising an annular conveyor, a 3D visual scanning station and a workpiece alignment station arranged along the annular conveyor, wherein the workpiece alignment station comprises an alignment platform A and an alignment platform B arranged in sequence, wherein the alignment platform A is provided with a slope A formed by a plurality of rollers to support a square workpiece to slide downward, a clamping plate is provided above the slope A, the clamping plate has a channel for a single square workpiece to pass through, and a clamping surface for clamping the square workpiece is provided on the inner wall of the channel; the alignment platform B is provided with a gyro chute for a single three-leaf fingertip gyroscope to slide in, the bottom wall of the gyro chute is provided with a slope B for supporting the three-leaf fingertip gyroscope to slide downward thereon, the slope B is provided with a convex column for blocking one of the three-leaf fingertip gyroscopes, and a through hole for the three-leaf gyroscope to rotate and pass through is formed between the convex column and one of the side walls of the gyro chute, and a positioning surface for supporting two of the three-leaf fingertip gyroscopes is provided at the foot of the slope B. It is convenient to quickly align a variety of workpieces and has high work efficiency.
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Description

Technical Field

[0001] The invention relates to the technical field of assembly lines, in particular to a workpiece straightening assembly line. Background Art

[0002] The assembly line, also known as the assembly line, is a production method in industry, where each production unit focuses on processing a certain part of the work to improve work efficiency and output. During the transportation process, the workpieces need to be manually aligned for subsequent processing. However, manual alignment is labor-intensive and inefficient. Summary of the invention

[0003] Purpose of the present invention: In order to overcome the defects of the prior art, the present invention provides a workpiece alignment production line, which is convenient for quickly aligning a variety of workpieces and has high work efficiency.

[0004] The technical solution of the present invention is: a workpiece alignment production line, comprising a ring conveyor, a 3D vision scanning station and a workpiece alignment station arranged along the ring conveyor, wherein the 3D vision scanning station is used to scan the posture of the workpiece conveyed on the ring conveyor, and the workpiece alignment station comprises an alignment table A and an alignment table B arranged in sequence,

[0005] The straightening table A is provided with a slope A formed by a plurality of rollers to support the square workpiece to slide downward, and a clamping plate is provided above the slope A. The clamping plate has a channel for a single square workpiece to pass through, and the inner wall of the channel has a clamping surface for clamping the square workpiece;

[0006] The straightening platform B is provided with a gyroscope slideway for a single three-leaf fidget gyroscope to slide into, the bottom wall of the gyroscope slideway is provided with a slope B for supporting the three-leaf fidget gyroscope to slide downward thereon, the slope B is provided with a convex column for blocking one of the leaves of the three-leaf fidget gyroscope, and a through hole for the three-leaf fidget gyroscope to rotate through is formed between the convex column and one of the side walls of the gyroscope slideway, and a positioning surface for supporting two of the leaves of the three-leaf fidget gyroscope is provided at the foot of the slope B;

[0007] The slope of the slope can be adjusted;

[0008] It also includes a robot, which is used to clamp the workpiece transported on the ring conveyor and send it to the top of the slope of the straightening table A and the straightening table B respectively.

[0009] By adopting the above technical scheme, the ring conveyor is used to convey the workpieces, and the workpiece straightening station is used to straighten various workpieces. After the offset square workpiece is placed on slope A, the square workpiece will slide up and down slope A, and the angle of the square workpiece will be fine-tuned during the sliding process, and the adjusted square workpiece will be positioned by the positioning surface; after the offset three-leaf fingertip gyroscope is placed on slope B, the three-leaf fingertip gyroscope will slide up and down slope B, and the convex column will block one of the leaves of the three-leaf fingertip gyroscope during the sliding process, thereby adjusting the sliding angle of the three-leaf fingertip gyroscope, and the three-leaf fingertip gyroscope rotates through the opening formed between the convex column and one of the side walls of the gyroscope slide slot, and the adjusted three-leaf fingertip gyroscope is supported by the positioning surface; after the workpiece is straightened, it is clamped out by the robot for further transportation.

[0010] The present invention is further configured as follows: the channel of the clamping plate has a "V"-shaped opening formed by the inclined walls on both sides, and a square opening formed by the flat walls on both sides, the multiple square openings are successively reduced, the multiple "V"-shaped openings and the multiple square openings are staggered and distributed, and the head and tail are connected and conducted in sequence, the head end of the channel is a "V"-shaped opening, and the tail end of the channel has a blocking surface.

[0011] By further setting the above, the "V"-shaped opening facilitates the entry of workpieces. The large square workpiece first passes through the "V"-shaped opening at the first end, and enters the next square opening to be clamped and positioned; the small square workpiece will continue to slide into the next "V"-shaped opening, and enter the next square opening to be clamped and positioned. Since the multiple square openings are reduced in size in sequence, the square workpieces of different specifications and sizes can be positioned, and the adaptability is strong.

[0012] The present invention is further configured as follows: the slope B is provided with an arc-shaped slide groove, the lower end of the boss is adjustably arranged in the arc-shaped slide groove, a gear is rotatably arranged at the lower end of the boss, an arc-shaped rack is arranged on the side wall of the arc-shaped slide groove, and the gear is meshed with the arc-shaped rack.

[0013] With the above further arrangement, the convex column can slide in an arc shape to adjust the position, so that it is convenient to adapt to three-leaf fidget gyros of different sizes, and the gear runs on the arc-shaped rack, so that the convex column can be gradually adjusted and positioned.

[0014] The present invention is further configured as follows: the straightening platform B is also provided with a hammer handle slot for a single cylindrical hammer handle to slide into; the bottom wall of the hammer handle slot is provided with a slope C for supporting the hammer handle to slide downward thereon; the foot of the slope C is provided with an abutment surface for abutting the end face of the hammer handle; the slope C is arc-shaped and has communicating notches on both sides of the hammer handle slot.

[0015] With the above further arrangement, after the offset cylindrical hammer handle is placed on the slope C, the cylindrical hammer handle will slide up and down the slope C, and the angle of the cylindrical hammer handle will be fine-tuned during the sliding process. The adjusted cylindrical hammer handle is positioned and supported by the abutment surface, and there are connected notches on both sides of the hammer handle slide slot to facilitate the extension of the clamping claws to clamp the hammer handle.

[0016] The present invention is further configured as follows: the 3D vision scanning station and the workpiece straightening station are arranged in the middle empty area of ​​the ring conveyor, the straightening platform is hingedly arranged on the bracket, and the bracket is also mounted on a first support rod arranged longitudinally, and the first support rod is mounted on a second support rod arranged transversely.

[0017] With the above further arrangement, the straightening platform is hingedly arranged on the bracket, so as to facilitate adjustment of the slope of the slope, and the straightening platform can also adjust the horizontal and vertical positions.

[0018] The present invention is further provided with: a connecting arm is provided on the bottom surface of the straightening table, the connecting arm and the bracket are connected by a screw, a pair of arc holes for screws to pass through are provided on the connecting arm, and the screw is adjustably arranged in the arc holes.

[0019] With the above further arrangement, after the screw is loosened, the screw is adjustably arranged in the arc hole, so that the tilt angle of the straightening table can be adjusted, and then the screw is tightened to tighten the straightening table.

[0020] The present invention is further configured as follows: the ring conveyor includes a frame, a ring-shaped track arranged on the frame, and a transmission belt located on the inner side of the track, a plurality of tooling trolleys are slidably arranged on the ring-shaped track, the tooling trolleys also clamp the transmission belt, and a tray for supporting the workpiece can be configured on the tooling trolleys.

[0021] The present invention is further configured as follows: the manipulator base is slidably arranged on a rail platform, a quick-change library for placing the manipulator fixture is provided at one end of the rail platform, the manipulator fixture is a suction cup, a clamp or an electromagnet, and a discharge platform is provided at the other end of the rail platform.

[0022] By further adopting the above-mentioned configuration, the robot clamp can be replaced through the quick-change library to meet the clamping needs of different workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a structural diagram of a specific embodiment of the present invention;

[0024] Figure 2 It is a structural diagram of a workpiece straightening station according to a specific embodiment of the present invention;

[0025] Figure 3 It is a structural diagram of a straightening platform A according to a specific embodiment of the present invention;

[0026] Figure 4 It is a structural diagram of a card plate according to a specific embodiment of the present invention;

[0027] Figure 5 It is a structural diagram of a straightening station B according to a specific embodiment of the present invention;

[0028] Figure 6 A diagram showing the coordination of a gear and an arc-shaped rack according to a specific embodiment of the present invention;

[0029] Figure 7 A structural diagram of a connecting arm according to a specific embodiment of the present invention;

[0030] Figure 8 It is a structural diagram of a ring conveyor in a specific embodiment of the present invention;

[0031] Fig. 9 for Figure 8 A partial enlarged view of part I;

[0032] Fig.10 It is a workpiece structure diagram in a specific embodiment of the present invention.

[0033] In the figure: circular conveyor 1, 3D visual scanning station 2, workpiece alignment station 3, alignment table A31, alignment table B32, roller 311, clamping plate 312, channel 3121, gyro chute 321, ramp B3211, protruding column 322, positioning surface 3212, manipulator 4, inclined wall 31211, "V"-shaped opening 31212, flat wall 31213, square opening 31214, blocking surface 31215, arc chute 323, gear 3 24, arc-shaped rack 325, middle empty area 11, bracket 33, first support rod 34, second support rod 35, connecting arm 36, arc-shaped hole 361, frame 12, annular track 13, transmission belt 14, tooling trolley 15, wheel 151, pallet 5, rail platform 6, quick-change warehouse 7, unloading platform 8, hammer handle slide 326, ramp C3261, abutment surface 3262, notch 3263, square workpiece 9, three-leaf fingertip gyroscope 10, cylindrical hammer handle 20. DETAILED DESCRIPTION

[0034] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1-10As shown, a workpiece alignment production line of the present invention comprises an annular conveyor 1, a 3D visual scanning station 2 and a workpiece alignment station 3 arranged along the annular conveyor, wherein the annular conveyor 1 comprises a frame 12, an annular track 13 arranged on the frame, and a transmission belt 14 located on the inner side of the track, wherein the transmission belt 14 is sleeved on transmission wheels 16 at both ends, wherein one transmission wheel is driven by a motor, and a plurality of tooling trolleys 15 are slidably arranged on the annular track 13, wherein a wheel 151 is provided at the bottom of the trolley, and the plurality of wheels 151 are clamped on both sides of the annular track 13, and the tooling trolley 15 also clamps the transmission belt 14, and a tray 5 for supporting the workpiece can be arranged on the tooling trolley 15;

[0036] The 3D vision scanning station 2 has a three-dimensional scanner or a 3D camera, and the 3D vision scanning station 2 is used to scan the posture of the workpiece transported on the ring conveyor. The workpiece straightening station 3 includes a straightening table A31 and a straightening table B32 arranged in sequence. The straightening table A31 is provided with a slope A formed by multiple rollers 311 to support the square workpiece to slide downward. The slope A is formed by a single row of rollers or a double row of rollers. A clamping plate 312 is provided above the slope A. The clamping plate 312 has a channel 3121 for a single square workpiece to pass through. The inner wall of the channel 3121 is provided with a plurality of rollers 311. A clamping surface for clamping a square workpiece, a channel 3121 of the clamping plate 312 has a "V"-shaped opening 31212 formed by oblique walls 31211 on both sides, and a square opening 31214 formed by flat walls 31213 on both sides, multiple square openings 31214 are successively reduced, multiple "V"-shaped openings 31212 and multiple square openings 31214 are staggered, and the head and tail are connected and conducted in sequence, the head end of the channel 3121 is a "V"-shaped opening, and the tail end of the channel has a blocking surface 31215, and the flat walls on both sides serve as the clamping surface, or the blocking surface serves as the clamping surface;

[0037] The straightening platform B32 is provided with a gyroscope slideway 321 for a single three-leaf fingertip gyroscope to slide into, and the bottom wall of the gyroscope slideway 321 is provided with a slope B3211 for supporting the three-leaf fingertip gyroscope to slide downward thereon, and the slope B3211 is provided with a convex column 322 for blocking one leaf of the three-leaf fingertip gyroscope, and a through hole for the three-leaf fingertip gyroscope to rotate through is formed between the convex column 322 and one side wall of the gyroscope slideway 321, and a through hole for the three-leaf fingertip gyroscope to rotate through is formed at the foot of the slope B3211. The positioning surface 3212 of two leaves of the three-leaf fidget gyroscope is supported, and the slope B3211 has an arc-shaped groove 323. The lower end of the boss 322 is adjustably set in the arc-shaped groove 323. A gear 324 is rotatably provided at the lower end of the boss 322. An arc-shaped rack 325 is provided on the side wall of the arc-shaped groove 323, and the gear 324 is meshed with the arc-shaped rack 325. The three-leaf fidget gyroscope is composed of a symmetrical body of a three-way blade 101 as the main body, and a bearing is embedded in the middle of the main body.

[0038] The straightening platform B32 is also provided with a hammer handle slot 326 for a single cylindrical hammer handle to slide into, and the bottom wall of the hammer handle slot 326 is provided with a slope C3261 for supporting the hammer handle to slide downward thereon, and abutting surface 3262 for abutting against the end face of the hammer handle is provided at the foot of the slope C3261, and the slope C3261 is arc-shaped, and there are communicating notches 3263 on both sides of the hammer handle slot 326;

[0039] The 3D vision scanning station 2 and the workpiece straightening station 3 are arranged in the middle empty area 11 of the circular conveyor 1. The straightening platform is hingedly arranged on the bracket 33, so that the slope of the slope can be adjusted. Specifically, a connecting arm 36 is arranged on the bottom surface of the straightening platform. The connecting arm 36 and the bracket 33 are connected by a screw. A pair of arc holes 361 for screws to pass through are arranged on the connecting arm 36. The screw is adjustably arranged in the arc holes 361; the bracket 33 is also installed on the first support rod 34 arranged longitudinally by screws, and the first support rod 34 is installed on the second support rod 35 arranged transversely by screws. The straightening platform is installed at any position by screws, so that the horizontal and vertical positions of the straightening platform can be relatively adjusted;

[0040] It also includes a manipulator 4, which is used to clamp the workpiece transported on the ring conveyor and deliver it to the top of the slope of the straightening table A31 and the straightening table B32 respectively; the manipulator base is slidably set on the rail platform 6, and a quick-change warehouse 7 for placing the manipulator clamp is provided at one end of the rail platform 6. The manipulator clamp is a suction cup, a clamping claw or an electromagnet, and a discharge platform 8 is provided at the other end of the rail platform 6.

[0041] When in use, the workpiece is first placed on the tray 5, and the circular conveyor 1 is used to transport the workpiece. The posture of the workpiece on the tray 5 is scanned by the 3D visual scanning station 2. When position deviation is detected, the manipulator 4 clamps different workpieces on the corresponding alignment table.

[0042] After the offset square workpiece is placed on the slope A, the square workpiece will slide up and down the slope A, and the angle of the square workpiece will be fine-tuned during the sliding process, and the adjusted square workpiece will be positioned by the positioning surface. Specifically, the larger square workpiece will first pass through the first end "V"-shaped opening 31212, and enter the next square opening 31214 for positioning, while the smaller square workpiece will continue to slide into the next "V"-shaped opening, and enter the next square opening for positioning. Since the multiple square openings are reduced in sequence, the positioning of square workpieces of different sizes can be achieved, and the adaptability is strong.

[0043] After placing the offset three-leaf fidget gyroscope on the slope B 3211, the three-leaf fidget gyroscope will slide up and down the slope B 3211. During the sliding process, the protruding column 322 will block one of the three-leaf fidget gyroscope leaves, thereby adjusting the sliding angle of the three-leaf fidget gyroscope. The three-leaf fidget gyroscope rotates around the protruding column 322 and passes through the opening formed between the protruding column 322 and one of the side walls of the gyroscope slide groove 321. The adjusted three-leaf fidget gyroscope is supported by the positioning surface 3212, and the protruding column 322 can also adjust its position as needed.

[0044] After the offset cylindrical hammer handle is placed on the slope C 3261, the cylindrical hammer handle will slide up and down the slope C 3261, and the angle of the cylindrical hammer handle will be fine-tuned during the sliding process, and the adjusted cylindrical hammer handle will be positioned and supported by the abutment surface 3262;

[0045] After each workpiece is aligned, the robot 4 clamps it out and places it on the tray 5 for further transportation. It is then scanned by the 3D vision scanning station 2. After detecting that the workpiece is aligned in place, it is sent to the discharge table 8 for output. When it is detected that there is still position deviation in the workpiece, it continues to be transported in a circular manner and the robot 4 clamps the workpiece onto the alignment table for alignment.

[0046] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, descriptions such as “first”, “second”, etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0048] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A workpiece straightening production line, characterized in that: The invention comprises a circular conveyor (1), a 3D vision scanning station (2) and a workpiece alignment station (3) arranged along the circular conveyor, wherein the 3D vision scanning station (2) is used to scan the posture of the workpiece conveyed on the circular conveyor, and the workpiece alignment station (3) comprises an alignment table A (31) and an alignment table B (32) arranged in sequence. The straightening table A (31) is provided with a slope A formed by a plurality of rollers (311) for supporting a square workpiece to slide downward, and a clamping plate (312) is provided above the slope A. The clamping plate (312) has a channel (3121) for a single square workpiece to pass through, and an inner wall of the channel (3121) has a clamping surface for clamping the square workpiece. The alignment platform B (32) is provided with a gyroscope slideway (321) for a single three-leaf fidget gyroscope to slide into, the bottom wall of the gyroscope slideway (321) is provided with a slope B (3211) for supporting the three-leaf fidget gyroscope to slide downward thereon, the slope B (3211) is provided with a convex column (322) for blocking one leaf of the three-leaf fidget gyroscope, and a through hole for the three-leaf fidget gyroscope to rotate through is formed between the convex column (322) and one side wall of the gyroscope slideway (321), and a positioning surface (3212) for supporting two leaves of the three-leaf fidget gyroscope is provided at the foot of the slope B (3211); The slope of the slope can be adjusted; It also includes a robot (4) for clamping the workpiece conveyed on the ring conveyor and delivering it to the top of the slope of the straightening table A (31) and the straightening table B (32).

2. The workpiece straightening assembly line according to claim 1, characterized in that: The channel (3121) of the clamping plate (312) has a "V"-shaped opening (31212) formed by the inclined walls (31211) on both sides, and a square opening (31214) formed by the flat walls (31213) on both sides. The plurality of square openings (31214) are successively smaller. The plurality of "V"-shaped openings (31212) and the plurality of square openings (31214) are staggered and arranged, and are connected and conducted in sequence from head to tail. The beginning end of the channel (3121) is a "V"-shaped opening, and the end end of the channel has a blocking surface (31215).

3. The workpiece straightening assembly line according to claim 1, characterized in that: The slope B (3211) is provided with an arc-shaped slide groove (323), the lower end of the boss (322) is adjustably arranged in the arc-shaped slide groove (323), a gear (324) is rotatably arranged at the lower end of the boss (322), an arc-shaped rack (325) is arranged on the side wall of the arc-shaped slide groove (323), and the gear (324) is meshed with the arc-shaped rack (325).

4. The workpiece straightening production line according to claim 1, 2 or 3, characterized in that: The straightening platform B (32) is also provided with a hammer handle slide groove (326) for a single cylindrical hammer handle to slide into, and a slope C (3261) is provided on the bottom wall of the hammer handle slide groove (326) for supporting the hammer handle to slide downward thereon, and a contact surface (3262) is provided at the foot of the slope C (3261) for abutting against the end surface of the hammer handle, and the slope C (3261) is arc-shaped, and communicating notches (3263) are provided on both sides of the hammer handle slide groove (326).

5. The workpiece straightening production line according to claim 1, 2 or 3, characterized in that: The 3D vision scanning station (2) and the workpiece alignment station (3) are arranged in the middle empty area (11) of the ring conveyor (1); the alignment table A (31) and the alignment table B (32) are hingedly arranged on a bracket (33); the bracket (33) is also mounted on a first support rod (34) arranged longitudinally; the first support rod (34) is mounted on a second support rod (35) arranged transversely.

6. The workpiece straightening assembly line according to claim 4, characterized in that: A connecting arm (36) is provided on the bottom surface of the straightening table A (31) and the straightening table B (32), and the connecting arm (36) is connected to the bracket (33) by a screw rod. A pair of arc-shaped holes (361) for screws to pass through are provided on the connecting arm (36), and the screw rods are adjustably arranged in the arc-shaped holes (361).

7. The workpiece straightening production line according to claim 1, 2 or 3, characterized in that: The circular conveyor (1) comprises a frame (12), a circular track (13) arranged on the frame, and a transmission belt (14) located inside the track. A plurality of tooling trolleys (15) are slidably arranged on the circular track (13). The tooling trolleys (15) also clamp the transmission belt (14). A tray (5) for supporting a workpiece can be arranged on the tooling trolleys (15).

8. The workpiece straightening production line according to claim 1, 2 or 3, characterized in that: The manipulator base is slidably arranged on a rail platform (6), and a quick-change library (7) for placing a manipulator clamp is provided at one end of the rail platform (6). The manipulator clamp is a suction cup, a clamping claw or an electromagnet, and a discharge platform (8) is provided at the other end of the rail platform (6).

Citation Information

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