A screw positioning and placing structure facilitating accurate grabbing of a mechanical arm

Abstract

This utility model relates to the field of screw processing and discloses a screw positioning and placement structure that facilitates precise gripping by a robotic arm. The structure includes a base and a mounting component mounted on the base for mounting the screw. The mounting component includes two positioning trays arranged in parallel and spaced apart, each supporting one end of a screw, and a main positioning groove on at least one positioning tray. The bottom of the main positioning groove has a groove that can be inserted at the end of the first screw thread at least one end of the screw. This structure can accurately position the screw to achieve precise gripping by the robotic arm.

Description

Technical Field

[0001] This utility model relates to the field of screw processing, and in particular to a screw positioning and placement structure that facilitates precise gripping by a robotic arm. Background Technology

[0002] Screw and thread polishing is a crucial step in screw manufacturing. Factories typically use manual polishing, which suffers from low efficiency and inconsistent product quality. Using a robotic polisher requires precise gripping, ensuring that the gripped area remains consistent each time to guarantee uniform product quality after polishing.

[0003] A conventional screw placement structure can refer to the screw placement frame with announcement number CN214190280U, which includes a base and a bracing assembly mounted on the base. The bracing assembly includes several first braces and second braces, which are staggered and form a V-shaped structure for screw mounting.

[0004] Conventional placement racks can only place screws and prevent them from moving circumferentially and axially. However, they cannot guarantee that screws from the same batch will be gripped by the same robotic arm after being left to stand. When placing screws manually, it is necessary to repeatedly measure their position after placement, which is not only time-consuming but also has a high probability of error. Therefore, it is essential to design a screw positioning and placement structure that allows for quick and accurate manual placement of screws. Utility Model Content

[0005] This invention addresses the shortcomings of existing screw placement racks that cannot accurately position and place screws by providing a screw positioning and placement structure that facilitates precise grasping by robotic arms.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: A screw positioning and placement structure that facilitates precise grasping by a robotic arm includes a base and a mounting component disposed on the base for mounting the screw. The mounting component includes two positioning trays arranged in parallel and spaced apart for mounting one end of the screw and a main positioning groove disposed on at least one positioning tray. The bottom of the main positioning groove has a groove that can be inserted at the end of the first screw thread at least one end of the screw.

[0007] Using the above scheme, in the mounting assembly, the two positioning trays are used to support the two ends of the screw, and the main positioning groove is set with a ridge groove at the bottom, which can position the end of the first screw ridge, thus positioning the entire screw. The robotic arm can grasp the same part of the same batch of screws at the preset gripping position, thereby ensuring the precise gripping of the robotic arm.

[0008] Preferably, one positioning tray is provided with a main positioning groove with ribs, and the other positioning tray is provided with an auxiliary positioning groove that is opposite to the main positioning groove and is for the shank of the screw to be inserted.

[0009] Preferably, at least one main positioning slot is provided at parallel intervals, and the number of auxiliary positioning slots is the same as that of the main positioning slots, with each slot corresponding to the other.

[0010] Preferably, the two positioning trays are equipped with a feeding structure for placing the processed screw.

[0011] Preferably, the feeding structure includes at least one positioning support block that can be detachably fixed on the positioning material tray, into which one end of the screw can be inserted from top to bottom, and the positioning support blocks on the two positioning material trays are arranged in a one-to-one correspondence.

[0012] By adopting the above scheme and adding a feeding structure, the multifunctionality of the entire screw positioning and placement structure can be increased. After the screw is polished, it is only necessary to prevent it from shifting and rolling. Therefore, the positioning and lifting block only needs to be able to be inserted into the end of the screw.

[0013] Preferably, the mounting components and the base are detachably and fixedly connected. Multiple sets of mounting components are provided, and the screw models that are adapted to each mounting component are the same or different. At least one set of mounting components is mounted on the base.

[0014] By adopting the above solution, different types of screws can be positioned by replacing the positioning trays with different grooves. If the positioning trays with the same grooves are replaced, they can be used to position the same type of screw. The mounting components can be set in one or more sets according to the size of the base.

[0015] Preferably, an adjustable connection structure is provided between the positioning tray and the base to adjust the distance between the two positioning trays in each set of mounting components.

[0016] Preferably, support pads are fixed parallel to each other at both ends of the bottom surface of the positioning tray, and the adjustment connection structure is set between the support pads and the base.

[0017] Preferably, the adjusting connection structure includes a plurality of threaded grooves spaced apart on the base along the direction of adjusting the spacing of the positioning trays, at least two insertion holes or a first waist-shaped groove extending along the adjustment direction on the support pad, and a first locking bolt that passes through the insertion hole or the first waist-shaped groove and is screwed into a corresponding threaded groove.

[0018] By adopting the above solution, the distance between the two positioning discs can be adjusted by adjusting the locking position of the pad on the base, thereby adapting to the positioning and placement of screws of different lengths.

[0019] Preferably, the support pad and the positioning tray are detachably connected.

[0020] By adopting the above solution, when adapting to different screw models, only the positioning tray needs to be replaced, reducing replacement costs.

[0021] This utility model, by adopting the above technical solution, has significant technical effects: In the mounting assembly, two positioning trays are used to support both ends of the screw. One positioning tray is equipped with a main positioning groove and the other positioning tray is equipped with an auxiliary positioning groove. The bottom of the main positioning groove is equipped with a rib groove, which can position at least the end of the first screw thread. The positioning of the entire screw can be achieved through the rib groove. The auxiliary positioning groove only needs to be inserted for the shank of the screw. The above configuration ensures that the robotic arm can grasp the same part of the same batch of screws at the preset gripping position, thereby ensuring the precise gripping of the robotic arm. The positioning tray can be detachably mounted on the support pad. The positioning tray with different grooves can be replaced according to the screw model to increase adaptability. The support pad on the base can be adjusted and locked along the direction of the distance between the two positioning discs, which can accommodate the positioning of screws of different lengths and increase adaptability. Attached Figure Description

[0022] Figure 1 This is an isometric view of a screw positioning and placement structure that facilitates precise grasping by a robotic arm in this embodiment; Figure 2 yes Figure 1 A magnified view of A; Figure 3 yes Figure 1 A magnified view of B; Figure 4 This is a top view of a screw positioning and placement structure that facilitates precise grasping by a robotic arm in this embodiment; Figure 5 This is an isometric view of a screw positioning and placement structure for precise gripping by a robotic arm, as described in this embodiment, after the screw has been placed.

[0023] The parts referred to by the numbers in the above attached figures are as follows: 1. Base; 101. Weight reduction groove; 102. Threaded groove; 2. Positioning tray; 3. Support pad; 301. First waist-shaped groove; 4. First locking bolt; 5. Main positioning groove; 501. Rib groove; 6. Positioning support block; 601. Second waist-shaped groove; 7. Second locking bolt; 8. Auxiliary positioning groove. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0025] A screw positioning and placement structure that facilitates precise grasping by a robotic arm, referring to... Figures 1-5As shown, the device includes a base 1 and a mounting assembly for mounting the screw, which is mounted on the base 1. The mounting assembly includes two parallel and spaced positioning trays 2. One positioning tray 2 has three parallel and spaced main positioning slots 5, and the other positioning tray 2 has three auxiliary positioning slots 8 that correspond one-to-one with the main positioning slots 5. Both the main positioning slots 5 and the auxiliary positioning slots 8 are arc-shaped slots with openings facing upwards. The bottom of the main positioning slot 5 is provided with a rib groove 501, which allows the termination of the first screw rib, a partial first screw rib, and a partial second screw rib to be inserted. The auxiliary positioning slots 8 are for the shank of the screw to be inserted. Since the shape of the termination of the first screw rib and its position on the screw are predetermined, the position of the screw can be accurately positioned. The number of screw ribs involved in the rib groove 501 is proportional to the width of the positioning tray 2.

[0026] Two support pads 3 are fixed parallel to each other at both ends of the bottom surface of the positioning tray 2. The support pads 3 are detachably fixed to the positioning tray 2. The detachable method is to use a combination of positioning pins and bolts for assembly. First, the positioning pins are inserted for positioning, and then the bolts are used to lock them. The positioning pins are E1 type conical straight positioning pins.

[0027] An adjustment connection structure for adjusting the distance between the two positioning discs 2 is provided between the support pad 3 and the base 1. The adjustment connection structure includes a plurality of threaded grooves 102 spaced apart on the base 1 along the adjustment direction of the distance between the positioning discs 2, two first waist-shaped grooves 301 extending along the adjustment direction on the support pad 3, and a first locking bolt 4 that passes through the first waist-shaped groove 301 and is screwed into a corresponding threaded groove 102.

[0028] The two positioning trays 2 are provided with a feeding structure for placing the polished screw. The feeding structure includes three positioning support blocks 6 that can be detachably fixed on the positioning trays 2. The positioning support blocks 6 on the two positioning trays 2 are arranged one-to-one. The upper end of the positioning support block 6 is recessed with a "V" shaped placement groove. The positioning support block 6 is assembled between the adjacent main positioning groove 5 and the adjacent auxiliary positioning groove 8.

[0029] The positioning and lifting block 6 is provided with a second waist-shaped groove 601 that runs through both sides. There are two second waist-shaped grooves 601 that are vertically arranged and parallel to each other. A threaded hole is provided on the side wall of the positioning material plate 2. The second locking bolt 7 passes through the second waist-shaped groove 601 and is screwed into the threaded hole for fixation.

[0030] The base 1 is assembled on the main worktable connected to the robotic arm for polishing. It is first positioned with a positioning pin and then locked with bolts. Next, the corresponding positioning plate 2 is selected according to the model of the screw to be polished. The positioning plate 2 is assembled with the support pad 3 through the positioning pin and bolts. Then, the position of the support pad 3 on the base 1 is adjusted and the two are locked with the first locking bolt 4. Finally, the positioning support block 6 is fixed on the positioning plate 2 with the second locking bolt 7.

[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A screw positioning and placement structure for precise grasping by a robotic arm, comprising a base (1) and a mounting assembly disposed on the base (1) for mounting the screw, characterized in that: The mounting assembly includes a positioning tray (2) mounted on one end of two parallel and spaced screws and a main positioning groove (5) provided on at least one positioning tray (2). The bottom of the main positioning groove (5) has a groove (501) that can be inserted into the end of the first screw ridge at least one end of the screw.

2. The screw positioning and placement structure for precise grasping by a robotic arm according to claim 1, characterized in that: One positioning tray (2) is provided with a main positioning groove (5) with a ribbed groove (501), and another positioning tray (2) is provided with an auxiliary positioning groove (8) that is opposite to the main positioning groove (5) and is for the screw shank to be inserted.

3. The screw positioning and placement structure for precise grasping by a robotic arm according to claim 2, characterized in that: There is at least one main positioning slot (5) with parallel spacing, and the number of auxiliary positioning slots (8) is the same as that of the main positioning slots (5) and they are set one-to-one.

4. The screw positioning and placement structure for precise grasping by a robotic arm according to claim 1, characterized in that: The two positioning trays (2) are equipped with a feeding structure for placing the processed screw.

5. The screw positioning and placement structure for precise grasping by a robotic arm according to claim 4, characterized in that: The feeding structure includes at least one positioning support block (6) that can be detachably fixed on the positioning material tray (2) and into which one end of the screw can be inserted from top to bottom. The positioning support blocks (6) on the two positioning material trays (2) are set one-to-one.

6. A screw positioning and placement structure for precise grasping by a robotic arm according to any one of claims 1-5, characterized in that: The mounting components and the base (1) are detachably and fixedly connected. There are multiple sets of mounting components and the screw models that are adapted to each other are the same or different. At least one set of mounting components is mounted on the base (1).

7. The screw positioning and placement structure for precise grasping by a robotic arm according to claim 6, characterized in that: An adjustable connection structure is provided between the positioning tray (2) and the base (1) to adjust the distance between the two positioning trays (2) in each set of mounting components.

8. The screw positioning and placement structure for precise grasping by a robotic arm according to claim 7, characterized in that: The bottom surfaces of the positioning tray (2) are fixed with support pads (3) at both ends, and the adjustment connection structure is set between the support pads (3) and the base (1).

9. The screw positioning and placement structure for precise grasping by a robotic arm according to claim 8, characterized in that: The adjustment connection structure includes a plurality of threaded grooves (102) spaced apart on the base (1) along the spacing adjustment direction of the positioning tray (2), at least two insertion holes or a first waist-shaped groove (301) extending along the adjustment direction on the support pad (3), and a first locking bolt (4) that passes through the insertion hole or the first waist-shaped groove (301) and is screwed into a corresponding threaded groove (102).

10. A screw positioning and placement structure for precise grasping by a robotic arm according to claim 8, characterized in that: The support pad (3) and the positioning tray (2) are detachably connected.

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