Automatic positioning and aligning device and method for circular workpiece with side wall opening

Abstract

This invention belongs to the field of workpiece positioning and calibration technology, specifically relating to an automatic positioning and alignment device and method for a circular workpiece with sidewall openings. The device includes: a base, a working platform, and support frames; the working platform is mounted on the base, and support frames are respectively mounted on both sides of the working platform; it also includes: a positioning and alignment mechanism, which is mounted on the base, and the working platform has a positioning station and an alignment station for the circular workpiece. This invention solves the problem that existing methods for positioning and aligning circular workpieces require manual operation, resulting in low efficiency, low positioning accuracy, and high labor and time costs. It achieves automatic positioning and alignment of circular workpieces, greatly improving the accuracy and efficiency of positioning and alignment, reducing labor intensity, and saving time.

Description

Technical Field

[0001] This invention belongs to the field of workpiece positioning and calibration technology, specifically relating to an automatic positioning and alignment device and method for a circular workpiece with a side wall opening. Background Technology

[0002] After the circular workpiece is processed, it needs to be installed with other components. During the installation process, the circular workpiece needs to be positioned and aligned. After the positioning and alignment are completed, the air shaft is inserted into the circular workpiece to install the air shaft.

[0003] In current enterprise production, the positioning and alignment of circular workpieces with sidewall openings are mostly done manually. This requires manual positioning and alignment of the circular workpieces, which is costly in terms of manpower and time, resulting in low positioning accuracy and reduced efficiency.

[0004] Therefore, the present invention provides an automatic positioning and alignment device and method for a circular workpiece with sidewall openings. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that existing methods for positioning and aligning circular workpieces require manual operation, which is inefficient, has low positioning accuracy, and incurs high labor and time costs. This invention achieves automatic positioning and alignment of circular workpieces, greatly improving the accuracy and efficiency of positioning and alignment, reducing labor intensity, and saving time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic positioning and alignment device for a circular workpiece with a side wall opening includes: a base, a working platform, and a support frame; the working platform is provided on the base, and support frames are provided on both sides of the working platform; it also includes: a positioning and alignment mechanism, which is disposed on the base, and the working platform is provided with a positioning station and an alignment station for the circular workpiece; the circular workpiece enters the positioning station and is clamped and positioned by the positioning and alignment mechanism, and the positioning and alignment mechanism drives the circular workpiece to translate to the alignment station, and aligns the side opening on the circumferential wall of the circular workpiece.

[0007] Preferably, the positioning and alignment mechanism includes: a support plate, a horizontal guide rail, a clamping frame, a first cylinder, a clamping claw, a second cylinder, a third cylinder, a fourth cylinder, and a motor; the support plate is set on the working platform, the side of the support plate is provided with a horizontal guide rail, the clamping frame is slidably mounted on the horizontal guide rail, the top of the clamping frame is provided with a first cylinder, and the bottom of the clamping frame is provided with a clamping claw; The support frame is horizontally equipped with a second cylinder and a fourth cylinder respectively. The output end of the second cylinder is connected to the clamping frame. The output end of the fourth cylinder is equipped with a positioning pin, and the diameter of the positioning pin is smaller than the diameter of the opening on the side wall of the circular workpiece. A third cylinder and a motor are vertically mounted on the base, and the third cylinder and the motor are located below the working platform. The output ends of the third cylinder and the motor both pass through the working platform.

[0008] Preferably, the clamping frame includes: a first L-shaped plate and a second L-shaped plate, the vertical surfaces of the first L-shaped plate and the second L-shaped plate are arranged opposite each other, the second L-shaped plate slides in the vertical direction of the first L-shaped plate, the first L-shaped plate is inverted on the horizontal guide rail, the top of the first L-shaped plate is connected to the first cylinder, the output end of the first cylinder passes through the first L-shaped plate; and a circular through hole is opened at the bottom of the second L-shaped plate.

[0009] Preferably, the clamping claw includes: a first fixing member, a second fixing member, and a spring; the first fixing member and the second fixing member are respectively disposed at the bottom of the second L-shaped plate, and the circular through hole is located between the first fixing member and the second fixing member, and the spring is disposed inside the second L-shaped plate and connected to the first fixing member.

[0010] Preferably, the top of the motor output terminal is provided with a follower screw, the outer diameter of which is smaller than the inner diameter of the circular workpiece.

[0011] Preferably, the alignment station on the work platform is equipped with a first position sensor, and the positioning station on the work platform is equipped with a second position sensor.

[0012] Preferably, the diameter of the circular through hole is larger than the diameter of the output end of the first cylinder.

[0013] A positioning and alignment method for an automatic positioning and alignment device for a circular workpiece with a sidewall opening includes the following steps: S1: Place the circular workpiece on the positioning station of the work platform, and use the third cylinder to push the circular workpiece into the clamping jaws on the clamping frame for positioning. S2: The clamping frame and the first cylinder are moved together by the second cylinder to be directly above the motor at the alignment station; S3: The first cylinder pushes the circular workpiece out of the clamping jaws and onto the motor output end, and the motor drives the circular workpiece to rotate. S4: The positioning pin on the fourth cylinder inserts into the opening in the side wall of the circular workpiece to complete the alignment of the opening in the side wall of the circular workpiece.

[0014] The beneficial effects of this invention are: 1. This invention, by setting clamping jaws, a first cylinder, a second cylinder, and a third cylinder on the working platform, uses the cooperation of the clamping jaws with the first, second, and third cylinders to clamp and fix the circular workpiece and position it. At the same time, the clamping jaws can freely adjust the clamping force to suit different workpiece sizes, thereby automatically positioning the circular workpiece, greatly improving the positioning accuracy of the circular workpiece, reducing labor intensity, and saving time.

[0015] 2. This invention sets a fourth cylinder and a motor on the working platform respectively. Through the cooperation between the fourth cylinder and the motor, the motor drives the circular workpiece to rotate during the rotation process. The positioning pin on the fourth cylinder quickly positions the circular workpiece, thereby greatly improving the positioning and alignment efficiency. In addition, the structure is simple and the operation is stable.

[0016] 3. By setting a clamping frame on the working platform, the distance between the first L-shaped plate and the second L-shaped plate on the clamping frame can be adjusted up and down through the cooperation between them, which effectively accommodates round workpieces of different sizes and greatly improves the scope of application. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the entire invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the first cylinder, the second cylinder, and the third cylinder of the present invention.

[0019] Figure 3 This is a perspective view of the interior of the second L-shaped plate of the present invention.

[0020] Figure 4 This is a schematic diagram of the second L-shaped plate and clamping claw of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the first cylinder, the fourth cylinder, and the motor of the present invention.

[0022] Figure 6 For the present invention Figure 5 Enlarged view of point A above.

[0023] Figure 7 This is a three-dimensional structural diagram of the circular workpiece of the present invention.

[0024] In the diagram: 1. Base; 2. Working platform; 3. Support frame; 4. Positioning and alignment mechanism; 41. Support plate; 42. Horizontal guide rail; 43. Clamping frame; 431. First L-shaped plate; 432. Second L-shaped plate; 433. Circular through hole; 44. First cylinder; 45. Clamping claw; 451. First fixing component; 452. Second fixing component; 453. Spring; 46. Second cylinder; 47. Third cylinder; 48. Fourth cylinder; 481. Positioning pin; 49. Motor; 491. Follower screw; 5. First position sensor; 6. Second position sensor; 7. Circular workpiece. Detailed Implementation

[0025] The method of using the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 7 As shown, an automatic positioning and alignment device for a circular workpiece with a side wall opening includes: a base 1, a working platform 2, and a support frame 3; the working platform 2 is provided on the base 1, and the support frame 3 is provided on both sides of the working platform 2; it also includes: a positioning and alignment mechanism 4, which is disposed on the base 1, and the working platform 2 is provided with a positioning station and an alignment station for the circular workpiece 7; the circular workpiece 7 enters the positioning station and is clamped and positioned by the positioning and alignment mechanism 4, and the positioning and alignment mechanism 4 drives the circular workpiece 7 to translate to the alignment station, and aligns the side opening on the circumferential wall of the circular workpiece 7.

[0027] like Figure 1 and Figure 2 As shown, the positioning and alignment mechanism 4 includes: a support plate 41, a horizontal guide rail 42, a clamping frame 43, a first cylinder 44, a clamping claw 45, a second cylinder 46, a third cylinder 47, a fourth cylinder 48, and a motor 49; the support plate 41 is set on the working platform 2, the side of the support plate 41 is provided with the horizontal guide rail 42, the clamping frame 43 is slidably mounted on the horizontal guide rail 42, the top of the clamping frame 43 is provided with the first cylinder 44, and the bottom of the clamping frame 43 is provided with the clamping claw 45; The first cylinder 44 is used to push out the circular workpiece 7, and the second cylinder 46 is used to push the first cylinder 44 and the clamping frame 43 together to move on the horizontal guide rail 42, and bring the circular workpiece 7 from the positioning station to the alignment station.

[0028] The support frame 3 is horizontally provided with a second cylinder 46 and a fourth cylinder 48 respectively. The output end of the second cylinder 46 is connected to the clamping frame 43. The output end of the fourth cylinder 48 is provided with a positioning pin 481, and the diameter of the positioning pin 481 is smaller than the diameter of the opening on the side wall of the circular workpiece 7. During alignment, the fourth cylinder 48 extends at a distance controlled by a magnetic switch. When the fourth cylinder 48 extends the positioning pin 481 to the alarm line, the positioning pin 481 is inserted into the opening in the side wall of the circular workpiece 7. Therefore, if the positioning pin 481 does not enter the opening in the side wall of the circular workpiece 7 after the fourth cylinder 48 extends, the front end of the positioning pin 481 will press against the outer surface of the circular workpiece 7. The force on the outer surface of the circular workpiece 7 is relatively small and will not cause wear. After the motor 49 rotates the circular workpiece 7 for one revolution, the opening in the side wall of the circular workpiece 7 will rotate to the position facing the positioning pin 481. At this time, the positioning pin 481 will enter the opening, and then the magnetic switch will alarm, and the alignment is complete.

[0029] A third cylinder 47 and a motor 49 are vertically mounted on the base 1, and the third cylinder 47 and the motor 49 are located below the working platform 2. The output ends of the third cylinder 47 and the motor 49 both pass through the working platform 2.

[0030] The third cylinder 47 is used for clamping and positioning the circular workpiece 7, and the motor 49 is used to drive the circular workpiece 7 to rotate and to align the circular workpiece 7. Furthermore, the motor 49, the third cylinder 47, and the fourth cylinder 48 are on the same straight line and are parallel to each other with the horizontal guide rail 42.

[0031] like Figures 1 to 4 As shown, the clamping frame 43 includes: a first L-shaped plate 431 and a second L-shaped plate 432, the vertical surfaces of the first L-shaped plate 431 and the second L-shaped plate 432 are arranged opposite each other, the second L-shaped plate 432 slides in the vertical direction of the first L-shaped plate 431, the first L-shaped plate 431 is inverted on the horizontal guide rail 42, the top of the first L-shaped plate 431 is connected to the first cylinder 44, and the output end of the first cylinder 44 passes through the first L-shaped plate 431; a circular through hole 433 is opened at the bottom of the second L-shaped plate 432.

[0032] It should be noted that the second L-shaped plate 432 slides in the vertical direction of the first L-shaped plate 431. This is to ensure that the distance between the second L-shaped plate 432 and the working platform 2 is adjustable, thereby adjusting the distance value and effectively accommodating round workpieces 7 of different sizes.

[0033] The circular through hole 433 at the bottom of the second L-shaped plate 432 is used for the extension of the first cylinder 44, and pushes out the circular workpiece 7 and puts it into the alignment station for alignment.

[0034] like Figure 4As shown, the clamping claw 45 includes: a first fixing member 451, a second fixing member 452, and a spring 453; the first fixing member 451 and the second fixing member 452 are respectively disposed at the bottom of the second L-shaped plate 432, and the circular through hole 433 is located between the first fixing member 451 and the second fixing member 452, and the spring 453 is disposed inside the second L-shaped plate 432 and connected to the first fixing member 451.

[0035] The clamping force of the first fixing member 451 on the clamping claw 45 is achieved by the spring 453. When the workpiece is clamped, the circular workpiece 7 is located between the first fixing member 451 and the second fixing member 452. At this time, the first fixing member 451 will compress the spring 453, thereby clamping the circular workpiece 7 through the elastic force of the spring 453. When the first cylinder 44 pushes out the circular workpiece 7, the elastic force will drive the first fixing member 451 to reset through its own elastic potential energy.

[0036] like Figure 6 As shown, a follower screw 491 is provided at the top of the output end of the motor 49. The outer diameter of the follower screw 491 is smaller than the inner diameter of the circular workpiece 7. This is because when the circular workpiece 7 is being aligned, it will fall onto the follower screw 491. The rotation of the motor 49 will cause the follower screw 491 and the circular workpiece 7 to rotate simultaneously. The fourth cylinder 48 will then drive the positioning pin 481 to insert into the opening in the circumferential side wall of the circular workpiece 7, thereby completing the alignment of the circular workpiece 7.

[0037] It should be noted that there is a slight friction between the circular workpiece 7 and the follower screw 491. The motor 49 rotates along with the follower screw 491 during its rotation due to its own gravity, so that the positioning pin 481 can align it. When the positioning pin 481 is inserted into the opening of the circular workpiece 7, the follower screw 491 rotates with the motor 49 to prevent the circular workpiece 7 from not rotating and to prevent friction and wear caused by the rotation of the motor 49.

[0038] like Figure 1 and Figure 2 As shown, the alignment station on the work platform 2 is equipped with a first position sensor 5, and the positioning station on the work platform 2 is equipped with a second position sensor 6.

[0039] The second position sensor 6 is used to detect whether the circular workpiece 7 is placed on the output end of the third cylinder 47 on the working platform 2. When the circular workpiece 7 is placed on the working platform 2, the second position sensor 6 detects the circular workpiece 7, the third cylinder 47 starts and pushes the circular workpiece 7 into the clamping jaw 45, thereby clamping and positioning the circular workpiece 7. The first position sensor 5 is used to detect whether the circular workpiece 7 is placed on the output end of the motor 49. When the first position sensor 5 detects the circular workpiece 7, the motor 49 starts and drives the circular workpiece 7 to rotate.

[0040] The diameter of the circular through hole 433 is larger than the diameter of the output end of the first cylinder 44. This is because when aligning the circular workpiece 7, it is necessary to push the circular workpiece 7 out of the clamping jaw 45. Therefore, the output end of the first cylinder 44 needs to pass through the circular through hole 433 and push the circular workpiece 7 onto the output end of the motor 49 for the next alignment step.

[0041] A positioning and alignment method for an automatic positioning and alignment device for a circular workpiece 7 with sidewall openings includes the following steps: S1: Place the circular workpiece 7 on the positioning station on the work platform 2, and use the third cylinder 47 to push the circular workpiece 7 into the clamping claw 45 on the clamping frame 43 for positioning. S2: The second cylinder 46 drives the clamping frame 43 and the first cylinder 44 to move as a whole to be directly above the motor 49 at the alignment station; S3: The first cylinder 44 pushes the circular workpiece 7 out of the clamping jaw 45 and onto the output end of the motor 49, which then drives the circular workpiece 7 to rotate. S4: The positioning pin 481 on the fourth cylinder 48 is inserted into the opening in the side wall of the circular workpiece 7 to complete the alignment of the opening in the side wall of the circular workpiece 7.

[0042] Working process: First, the circular workpiece 7 with side wall openings needs to be placed on the working platform 2. The circular workpiece 7 is located directly below the second L-shaped plate 432 and directly above the output end of the third cylinder 47. When the second position sensor 6 detects the circular workpiece 7, the third cylinder 47 is activated. The output shaft of the third cylinder 47 extends upward and drives the circular workpiece 7 to move upward, pushing the circular workpiece 7 into the clamping jaw 45. The first fixing member 451 on the clamping jaw 45 will be displaced and push the spring 453 to be compressed. When the circular workpiece 7 is completely inserted between the first fixing member 451 and the second fixing member 452, the circular workpiece 7 is clamped and fixed by the elastic potential energy of the spring 453 itself.

[0043] Subsequently, the second cylinder 46 is activated, pushing the clamping frame 43 and the first cylinder 44 to move horizontally. When the clamping frame 43 moves directly above the output shaft of the motor 49, the circular workpiece 7 and the follower screw 491 on the motor 49 are on the same axis. At this time, the first cylinder 44 is activated, and the output end of the first cylinder 44 extends downward, passes through the circular through hole 433 on the second L-shaped plate 432, enters between the first fixing member 451 and the second fixing member 452, and pushes out the circular workpiece 7, so that the circular workpiece 7 is fitted onto the follower screw 491.

[0044] When the circular workpiece 7 is released from the clamping jaw 45, the first position sensor 5 detects that the circular workpiece 7 has fallen, the motor 49 starts, and the output end of the motor 49 drives the follower screw 491 to rotate, which in turn drives the circular workpiece 7 to rotate. At the same time, the fourth cylinder 48 will start, and the output end of the fourth cylinder 48 will drive the positioning pin 481 to move horizontally and contact the circular workpiece 7. When the opening on the side wall of the circular workpiece 7 rotates to correspond with the positioning pin 481, the positioning pin 481 will insert into the opening of the circular workpiece 7. After the circular workpiece 7 is aligned, it will stop rotating. At this time, the follower screw 491 rotates with the motor 49 to prevent the circular workpiece 7 from not rotating and the friction caused by the rotation of the motor 49. Finally, the output shaft end of the fourth cylinder 48 retracts, thereby completing the positioning and alignment of the circular workpiece 7.

[0045] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic positioning and alignment device for a circular workpiece with a sidewall opening, comprising: The base (1), the working platform (2), and the support frame (3) are provided; the working platform (2) is provided on the base (1), and the support frame (3) is provided on both sides of the working platform (2); the feature is that it also includes: a positioning and alignment mechanism (4), the positioning and alignment mechanism (4) is provided on the base (1), and the working platform (2) is provided with a positioning station and an alignment station for a circular workpiece (7); the circular workpiece (7) enters the positioning station and is clamped and positioned by the positioning and alignment mechanism (4), and the circular workpiece (7) is moved to the alignment station by the positioning and alignment mechanism (4), and the circumferential wall side opening of the circular workpiece (7) is aligned; The positioning and alignment mechanism (4) includes: a support plate (41), a horizontal guide rail (42), a clamping frame (43), a first cylinder (44), a clamping claw (45), a second cylinder (46), a third cylinder (47), a fourth cylinder (48), and a motor (49); the support plate (41) is set on the working platform (2), the side of the support plate (41) is provided with a horizontal guide rail (42), the clamping frame (43) is slidably provided on the horizontal guide rail (42), the top of the clamping frame (43) is provided with a first cylinder (44), and the bottom of the clamping frame (43) is provided with a clamping claw (45); The support frame (3) is horizontally provided with a second cylinder (46) and a fourth cylinder (48). The output end of the second cylinder (46) is connected to the clamping frame (43). The output end of the fourth cylinder (48) is provided with a positioning pin (481), and the diameter of the positioning pin (481) is smaller than the diameter of the opening on the side wall of the circular workpiece (7). The base (1) is vertically provided with a third cylinder (47) and a motor (49), and the third cylinder (47) and the motor (49) are located below the working platform (2). The output ends of the third cylinder (47) and the motor (49) both pass through the working platform (2). The clamping frame (43) includes: a first L-shaped plate (431) and a second L-shaped plate (432), the vertical surfaces of the first L-shaped plate (431) and the second L-shaped plate (432) are arranged opposite each other, the second L-shaped plate (432) slides in the vertical direction of the first L-shaped plate (431), the first L-shaped plate (431) is inverted on the horizontal guide rail (42), the top of the first L-shaped plate (431) is connected to the first cylinder (44), and the output end of the first cylinder (44) passes through the first L-shaped plate (431); a circular through hole (433) is opened at the bottom of the second L-shaped plate (432). The distance between the first L-shaped plate and the second L-shaped plate can be adjusted vertically to accommodate round workpieces of different sizes. The clamping claw (45) includes: a first fixing member (451), a second fixing member (452), and a spring (453); the first fixing member (451) and the second fixing member (452) are respectively disposed at the bottom of the second L-shaped plate (432), and the circular through hole (433) is located between the first fixing member (451) and the second fixing member (452), and the spring (453) is disposed inside the second L-shaped plate (432) and connected to the first fixing member (451); By cooperating with the first, second, and third cylinders, the circular workpiece is clamped and fixed, and positioned. At the same time, the clamping force can be freely adjusted to suit different workpiece sizes, thereby automatically positioning the circular workpiece. The top of the output end of the motor (49) is provided with a follower screw (491), the outer diameter of which is smaller than the inner diameter of the circular workpiece (7); When the clamping frame moves directly above the motor output shaft, the circular workpiece and the follower screw on the motor are on the same axis. At this time, the first cylinder starts, and the output end of the first cylinder extends downward, passes through the circular through hole on the second L-shaped plate, enters between the first and second fixing parts, and pushes out the circular workpiece, so that the circular workpiece is fitted onto the follower screw.

2. The automatic positioning and alignment device for a circular workpiece with a side wall opening according to claim 1, characterized in that: The alignment station on the work platform (2) is equipped with a first position sensor (5), and the positioning station on the work platform (2) is equipped with a second position sensor (6).

3. The automatic positioning and alignment device for a circular workpiece with a side wall opening according to claim 1, characterized in that: The diameter of the circular through hole (433) is larger than the diameter of the output end of the first cylinder (44).

4. A positioning and alignment method for an automatic positioning and alignment device for a circular workpiece with a sidewall opening, as described in any one of claims 1 to 3, characterized in that... Includes the following steps: S1: Place the circular workpiece (7) on the positioning station on the work platform (2), and use the third cylinder (47) to push the circular workpiece (7) into the clamping claw (45) on the clamping frame (43) for positioning; S2: The clamping frame (43) and the first cylinder (44) are moved as a whole to the position directly above the motor (49) at the alignment station by the second cylinder (46); S3: The first cylinder (44) pushes the circular workpiece (7) out of the clamping jaw (45) and onto the output end of the motor (49), which then drives the circular workpiece (7) to rotate. S4: The positioning pin (481) on the fourth cylinder (48) is inserted into the opening in the side wall of the circular workpiece (7) to complete the alignment of the opening in the side wall of the circular workpiece (7).

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