Positioning device for square sheet metal part feeding

Abstract

This utility model discloses a positioning device for loading square sheet metal parts, which relates to the field of parts positioning technology. It includes a base plate, a worktable, a pair of horizontal plates, a pair of vertical plates, a pair of adjusting components, a pair of push balls, and a right-angle limiting plate. Multiple support columns are fixedly installed on the base plate, and multiple support columns are fixedly installed on the worktable. This utility model uses a cylinder to push the horizontal plate upwards, causing rollers to rotate the horizontal plates, thus moving the push balls away from the right-angle limiting plate. After the part is placed on the worktable, the force of a pair of tension springs drives the horizontal and vertical plates to rotate, thereby causing the push balls to push against the end face of the part, squeezing it tightly against the right-angle limiting plate. The tension springs clamp the part to prevent damage to its edges. The single-cylinder design saves costs and simplifies pipe connections, facilitating maintenance and repair.

Description

Technical Field

[0001] This utility model relates to the field of parts positioning technology, specifically a positioning device for loading square sheet metal parts. Background Technology

[0002] In modern manufacturing, especially in automated production lines involving square sheet metal parts (such as chassis and panels), robots have become core equipment for processes like loading, handling, and assembly due to their high efficiency, precision, and stability. For a robot to successfully complete a loading operation, the sheet metal part being handled must be precisely and repeatedly positioned in a predefined initial position and posture. The accuracy of this initial position directly determines the robot's success rate in grasping the part and the quality of subsequent processes (such as welding, assembly, and inspection).

[0003] To ensure that square sheet metal parts can be stably and accurately positioned at the same initial location before being grasped by a robot, existing positioning technologies typically require mechanical part positioning devices. Currently, the most common solution in the industry is a multi-cylinder direct-push limiting mechanism. This type of device usually includes a platform for placing the sheet metal part, with fixed limiting blocks (or "right-angle limiting plates") set at two adjacent edges of the platform (usually forming a right angle). On the outer sides of the other two opposite edges, push plates (or push blocks) driven by independent cylinders are respectively set. During operation, two (or more) cylinders actuate simultaneously, pushing the push plates along a straight line, directly contacting and pushing the corresponding edges of the sheet metal part, ultimately pressing the part against the fixed right-angle limiting blocks, thus achieving positioning.

[0004] However, this method requires at least two cylinders to constrain the two degrees of freedom of the part (e.g., positioning in the X and Y directions). This not only increases equipment costs (cylinders, solenoid valves, air piping, etc.) but also increases the complexity of the control system (requiring coordination of the actions of multiple cylinders). Furthermore, the cylinder-driven push plate directly and rigidly contacts the edge of the part, which can easily damage the edge of the sheet metal and affect product quality. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this utility model provides a positioning device for loading square sheet metal parts. A cylinder pushes a horizontal plate upwards, causing rollers to rotate the horizontal plate, moving the push ball away from the right-angle limiting plate. After the part is placed on the worktable, a pair of tension springs rotate the horizontal and vertical plates respectively, thereby causing the push ball to push the end face of the part, squeezing it tightly against the right-angle limiting plate. The tension springs clamp the part, preventing damage to its edges. The single-cylinder design saves costs and simplifies pipe connections, facilitating repair and maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for loading square sheet metal parts, comprising a base plate, a worktable, a pair of horizontal plates, a pair of vertical plates, a pair of adjusting components, a pair of push balls, and a limiting right-angle plate. Multiple support columns are fixedly mounted on the base plate, and the worktable is fixedly mounted on the support columns. The worktable covers one corner of the base plate in the vertical projection direction. The limiting right-angle plate is detachably mounted on the upper surface of the worktable, and its position and right-angle direction on the worktable correspond to the corner of the worktable covering the base plate. A pair of fixing columns are fixedly mounted on the base plate, and these fixing columns are respectively located on the outer sides of the two right-angled sides of the worktable away from the limiting right-angle plate. Mounting seats are fixedly mounted on the fixing columns. One end of the horizontal plate is fixedly connected to the lower end of the vertical plate, and the vertical plate is designed at a right angle. The inflection points of the horizontal and vertical plates rotate between the mounting seats and the mounting seats. The system is composed of a pair of horizontal and vertical plates that can rotate vertically along the right-angled side of their respective worktables. A pair of push balls are respectively mounted on the pair of vertical plates via adjustment components. The height of the push balls corresponds to the end face of the square sheet metal part after it is placed on the worktable. A tension spring with stored force is installed between the center of the pair of horizontal plates and the base plate. The force of the tension spring is greater than the friction force of the part on the worktable. A drive component is installed on the base plate corresponding to the bottom of the worktable. A horizontal plate is fixedly installed on the moving end of the drive component. The drive component can drive the horizontal plate to move vertically. A fixed seat is fixedly installed on the upper surface of the horizontal plate, corresponding to one end of the inner side of the pair of horizontal plates. A roller is rotatably installed on the fixed seat. The force of the tension spring causes one end of the inner side of the pair of horizontal plates to rest on the roller. The rotation direction of the roller is along the length direction of the horizontal plate.

[0007] Preferably, the adjustment assembly includes a threaded rod and a nut. An adjustment port is vertically opened on the upper part of the vertical plate. The threaded rod passes through the adjustment port and can move vertically within the adjustment port. One end of the threaded rod facing the worktable is fixedly connected to the push ball. A fixing plate is fixedly installed on the side of the threaded rod corresponding to the push ball. The nut is screwed onto the side of the threaded rod away from the push ball and is clamped onto the vertical plate in cooperation with the fixing plate.

[0008] Preferably, the driving component is a cylinder, with the bottom of the cylinder fixedly connected to the upper surface of the base plate, and the telescopic end of the cylinder fixedly connected to the lower bottom surface of the horizontal plate.

[0009] Preferably, multiple pairs of threaded holes are evenly arranged on both sides of the diagonal where the limiting right angle plate is located along the edge of the worktable, and the limiting right angle plate is connected to a pair of threaded holes by screws.

[0010] Preferably, limit holes are provided on both sides of the center of the horizontal plate, and a limit rod is fixedly provided on the bottom plate at the position corresponding to the limit hole, and the limit rod moves vertically through the limit hole.

[0011] Preferably, the vertical plate and the horizontal plate are integrally formed.

[0012] This utility model provides a positioning device for loading square sheet metal parts, which has the following advantages:

[0013] 1. This utility model uses a cylinder to push the horizontal plate upward, which drives the roller to push the horizontal plate to rotate, so that the push ball moves away from the right-angle limiting plate. After the part is placed on the worktable, the force of a pair of tension springs drives the horizontal plate and the vertical plate to rotate respectively, thereby driving the push ball to push the end face of the part, so that it is squeezed tightly against the right-angle limiting plate. The force of the tension springs clamps and avoids damage to the edge of the part. The design of a single cylinder saves costs and makes the pipeline connection simpler, which is convenient for maintenance and repair.

[0014] 2. The adjustment component of this utility model includes a threaded rod and a nut. An adjustment port is vertically opened on the upper part of the vertical plate. The threaded rod passes through the adjustment port and can move vertically within the adjustment port. One end of the threaded rod is fixedly connected to the push ball. A fixing plate is fixedly installed on the side of the threaded rod corresponding to the push ball. The nut is screwed onto the side of the threaded rod away from the push ball and is clamped on the vertical plate with the fixing plate. The structure is simple and the adjustment is convenient. The height of the push ball can be adjusted according to the thickness of the part. Attached Figure Description

[0015] Figure 1 This is a front view of a positioning device for feeding square sheet metal parts according to this utility model;

[0016] Figure 2 This is a top view of a positioning device for feeding square sheet metal parts according to the present invention;

[0017] Figure 3 This is a schematic diagram showing the connection between the ball pusher and the vertical plate of this utility model;

[0018] Figure 4 This is a top view of the horizontal plate of this utility model.

[0019] In the diagram: 1. Base plate; 2. Fixed seat; 3. Horizontal plate; 4. Limiting rod; 5. Cylinder; 6. Support column; 7. Tension spring; 8. Fixed column; 9. Roller; 10. Mounting seat; 11. Horizontal plate; 12. Vertical plate; 13. Threaded rod; 14. Nut; 15. Fixed plate; 16. Push ball; 17. Worktable; 18. Limiting right angle plate; 19. Screw; 20. Threaded hole; 21. Adjustment port; 22. Limiting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4As shown, a positioning device for loading square sheet metal parts includes a base plate 1, a worktable 17, a pair of horizontal plates 11, a pair of vertical plates 12, a pair of adjusting components, a pair of push balls 16, and a limiting right-angle plate 18. Multiple support columns 6 are fixedly mounted on the base plate 1, and the worktable 17 is fixedly mounted on the multiple support columns 6. The worktable 17 covers one corner of the base plate 1 in the vertical projection direction. The limiting right-angle plate 18 is detachably mounted on the upper surface of the worktable 17. The position and right-angle direction of the limiting right-angle plate 18 on the worktable 17 correspond to the corner of the worktable 17 covering the base plate 1. A pair of fixing columns 8 are fixedly mounted on the base plate 1, and the pair of fixing columns 8 are respectively located on the outer sides of the two right-angled sides of the worktable 17 away from the limiting right-angle plate 18. The fixing columns 8 are fixedly mounted on... A mounting base 10 is fixedly provided. The lower end of the vertical plate 12 at one end of the horizontal plate 11 is fixedly connected and designed at a right angle. The inflection points of the horizontal plate 11 and the vertical plate 12 are rotatably connected to the mounting base 10. The pair of horizontal plates 11 and vertical plates 12 can rotate in the vertical direction of their corresponding right-angled sides of the worktable 17. A pair of push balls 16 are respectively set on the pair of vertical plates 12 through adjustment components. The height of the push balls 16 can correspond to the end face of the square sheet metal part after it is placed on the worktable 17. A tension spring 7 is respectively provided between the center position of the pair of horizontal plates 11 and the base plate 1. The force of the tension spring 7 is greater than the friction force of the part on the worktable 17. A drive component is provided on the base plate 1 corresponding to the bottom of the worktable 17. The moving end of the drive component is fixed A horizontal plate 3 is provided, and a driving assembly can drive the horizontal plate 3 to move vertically. A fixed seat 2 is fixedly provided on the upper surface of the horizontal plate 3, corresponding to one end of the inner side of a pair of horizontal plates 11. A roller 9 is rotatably mounted on the fixed seat 2. The force of the tension spring 7 causes one end of the inner side of the pair of horizontal plates 11 to rest on the roller 9. The rotation direction of the roller 9 is along the length direction of the horizontal plate 11. The adjusting assembly includes a threaded rod 13 and a nut 14. An adjusting port 21 is vertically opened on the upper part of the vertical plate 12. The threaded rod 13 passes through the adjusting port 21 and can move vertically within the adjusting port 21. One end of the threaded rod 13 facing the worktable 17 is fixedly connected to a push ball 16. A fixed seat 2 is fixedly provided on the side of the threaded rod 13 corresponding to the push ball 16. The fixed plate 15, the nut 14 is screwed onto the threaded rod 13 on the side away from the push ball 16 and clamped onto the vertical plate 12 with the fixed plate 15; the driving assembly is a cylinder 5, the bottom of the cylinder 5 is fixedly connected to the upper surface of the base plate 1, and the telescopic end of the cylinder 5 is fixedly connected to the lower bottom surface of the horizontal plate 3; multiple pairs of threaded holes 20 are evenly arranged on both sides of the diagonal line where the limiting right angle plate 18 is located on the worktable 17, and the limiting right angle plate 18 is connected to a pair of threaded holes 20 by screws 19; limiting holes 22 are respectively opened on both sides of the center of the horizontal plate 3, and a limiting rod 4 is fixedly installed on the base plate 1 at the position corresponding to the limiting hole 22, and the limiting rod 4 moves vertically through the limiting hole 22; the vertical plate 12 and the horizontal plate 11 are integrally formed.

[0022] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, as follows:

[0023] According to the instruction manual Figure 1-4 As can be seen, when this utility model is working, the drive assembly pushes the horizontal plate 3 and roller 9 upwards. Since the connection point of the horizontal plate 11 and the vertical plate 12 is rotatably connected to the mounting base 10 on the fixed column 8, the roller 9 can push the horizontal plate 11 and the vertical plate 12, as well as the adjustment assembly and push ball 16 on the vertical plate 12, to rotate around the mounting base 10. Since the pair of horizontal plates 11 and vertical plates 12 can rotate in the vertical direction of their corresponding right-angled sides of the worktable 17 (e.g., ... Figure 2 As shown, one set of horizontal plates 11 and vertical plates 12 rotates left and right on the right side of the worktable 17, and another set of horizontal plates 11 and vertical plates 12 rotates front and back on the rear side of the worktable 17. Since the horizontal plates 11 and vertical plates 12 are a single unit, a pair of push balls 16 rotate outwards (as shown). Figure 1 The horizontal plate 11, vertical plate 12, and push ball 16 on the right side (with roller 9 pointing upwards, and the horizontal plate 11, vertical plate 12, and push ball 16 rotating clockwise) facilitate loading of the push ball 16 away from the worktable 17. The operator places the square sheet metal part on the worktable 17, with one corner of the part corresponding to the limiting right-angle plate 18. At this time, the extension end of the drive assembly retracts, and roller 9 points downwards. Because the tension spring 7 is in a stored state, it can drive the horizontal plate 11, vertical plate 12, and push ball 16 to rotate towards the worktable 17. During the rotation, because the height of the push ball 16 corresponds to the end face of the square sheet metal part after it is placed on the worktable 17, and the force of the tension spring 7 is greater than the frictional force of the part on the worktable 17, the push ball 16 can push the part towards the limiting right-angle plate 18, so that the two sides away from the push ball 16 abut against the limiting right-angle plate 18, completing the positioning. Finally, the drive assembly works again to move the push ball 16 away from the part, allowing the external robot to accurately grasp the part. This utility model uses a cylinder 5 to push the horizontal plate 3 upward, which drives the roller 9 to push the horizontal plate 11 to rotate, so that the push ball 16 moves away from the right-angle limiting plate. After the part is placed on the worktable 17, the force of a pair of tension springs 7 drives the horizontal plate 11 and the vertical plate 12 to rotate respectively, thereby driving the push ball 16 to push the end face of the part, so that it is squeezed tightly against the right-angle limiting plate. The force of the tension springs 7 clamps and avoids damage to the edge of the part. The design of a single cylinder 5 saves costs and makes the pipeline connection simpler, which is convenient for maintenance and repair.

[0024] The adjustment assembly includes a threaded rod 13 and a nut 14. An adjustment port 21 is vertically opened on the upper part of the vertical plate 12. The threaded rod 13 passes through the adjustment port 21 and can move vertically within the adjustment port 21. One end of the threaded rod 13 facing the worktable 17 is fixedly connected to the push ball 16. A fixing plate 15 is fixedly installed on the side of the threaded rod 13 corresponding to the push ball 16. The nut 14 is screwed onto the side of the threaded rod 13 away from the push ball 16 and is clamped onto the vertical plate 12 in conjunction with the fixing plate 15. The structure is simple and easy to adjust, and the height of the push ball 16 can be adjusted according to the thickness of the part.

[0025] The drive assembly uses cylinder 5. The bottom of cylinder 5 is fixedly connected to the upper surface of base plate 1, and the telescopic end of cylinder 5 is fixedly connected to the lower bottom surface of horizontal plate 3. It is connected to an external air compressor. Cylinder 5 is existing technology.

[0026] The workbench 17 has multiple pairs of threaded holes 20 evenly arranged on both sides of the diagonal where the limiting right angle plate 18 is located. The limiting right angle plate 18 is connected to a pair of threaded holes 20 by screws 19. Before work, the limiting right angle plate 18 can be set in a suitable position according to the size of the part.

[0027] Among them, limit holes 22 are opened on both sides of the center of the horizontal plate 3, and limit rods 4 are fixedly installed on the bottom plate 1 at the corresponding positions of the limit holes 22. The limit rods 4 vertically move through the limit holes 22 to limit the vertical movement of the horizontal plate 3, ensuring the stability and synchronization of the pair of rollers 9 driving the horizontal plate 11.

[0028] Among them, the vertical plate 12 and the horizontal plate 11 are integrally molded to increase their strength.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for feeding square sheet metal parts, characterized in that, The system includes a base plate (1), a worktable (17), a pair of horizontal plates (11), a pair of vertical plates (12), a pair of adjusting components, a pair of push balls (16), and a limiting right-angle plate (18). Multiple support columns (6) are fixedly mounted on the base plate (1), and the worktable (17) is fixedly mounted on the multiple support columns (6). The worktable (17) covers one corner of the base plate (1) in the vertical projection direction. The limiting right-angle plate (18) is detachably mounted on the upper surface of the worktable (17). The limiting right-angle plate (18) is positioned on the worktable (17). The position and right angle direction correspond to the angle of the workbench (17) covering the base plate (1). A pair of fixing posts (8) are fixedly installed on the base plate (1), and the pair of fixing posts (8) are respectively located on the outside of the two right angle sides of the workbench (17) away from the limiting right angle plate (18). A mounting base (10) is fixedly installed on the fixing post (8). The lower end of the vertical plate (12) at one end of the horizontal plate (11) is fixedly connected and designed at a right angle. The inflection point of the horizontal plate (11) and the vertical plate (12) are rotatably connected to the mounting base (10). A pair of horizontal plates (11) The vertical plate (12) can rotate in the vertical direction of the right-angle side of its corresponding worktable (17). A pair of push balls (16) are respectively set on the pair of vertical plates (12) through adjustment components. The height of the push balls (16) can correspond to the end face of the square sheet metal part after it is placed on the worktable (17). A tension spring (7) with a storage force is respectively set between the center position of the pair of horizontal plates (11) and the base plate (1). The force of the tension spring (7) is greater than the friction force of the part on the worktable (17). The base plate (1) corresponds to the worktable (17). A driving component is provided at the bottom. A horizontal plate (3) is fixedly provided on the moving end of the driving component. The driving component can drive the horizontal plate (3) to move vertically. A fixed seat (2) is fixedly provided on the upper surface of the horizontal plate (3) and at the position corresponding to one end of the inner side of a pair of horizontal plates (11). A roller (9) is rotatably provided on the fixed seat (2). The force of the tension spring (7) causes one end of the inner side of a pair of horizontal plates (11) to rest on the roller (9). The rotation direction of the roller (9) is the same as the length direction along the horizontal plate (11).

2. The positioning device for feeding square sheet metal parts according to claim 1, characterized in that, The adjustment assembly includes a threaded rod (13) and a nut (14). The upper part of the vertical plate (12) has an adjustment port (21) in the vertical direction. The threaded rod (13) passes through the adjustment port (21) and can move vertically within the adjustment port (21). One end of the threaded rod (13) facing the worktable (17) is fixedly connected to the push ball (16). A fixing plate (15) is fixedly installed on the side of the threaded rod (13) corresponding to the push ball (16). The nut (14) is screwed onto the side of the threaded rod (13) away from the push ball (16) and is clamped on the vertical plate (12) in conjunction with the fixing plate (15).

3. The positioning device for feeding square sheet metal parts according to claim 1, characterized in that, The drive assembly uses a cylinder (5), the bottom of the cylinder (5) is fixedly connected to the upper surface of the base plate (1), and the telescopic end of the cylinder (5) is fixedly connected to the lower bottom surface of the horizontal plate (3).

4. A positioning device for feeding square sheet metal parts according to claim 1, characterized in that, Multiple pairs of threaded holes (20) are evenly arranged on both sides of the diagonal of the limiting right angle plate (18) on the workbench (17). The limiting right angle plate (18) is connected to a pair of threaded holes (20) by screws (19).

5. A positioning device for feeding square sheet metal parts according to claim 1, characterized in that, Limiting holes (22) are respectively opened on both sides of the center of the horizontal plate (3). A limiting rod (4) is fixedly installed on the bottom plate (1) at the position corresponding to the limiting hole (22). The limiting rod (4) moves vertically through the limiting hole (22).

6. A positioning device for feeding square sheet metal parts according to claim 1, characterized in that, The vertical plate (12) and the horizontal plate (11) are designed as a single piece.

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