Automatic assembling machine for double-end screws and nuts

Abstract

The utility model relates to the technical field of screw and nut assembling, in particular to a double-end screw and nut automatic assembling machine which comprises a machine frame body, feeding mechanisms are arranged on the two sides of the upper end of the machine frame body and convey nuts, a sliding guide plate is arranged at the top end of each feeding mechanism, and an auxiliary guide plate is arranged at the lower end of each sliding guide plate. A supporting plate and a fixing frame are fixedly connected to the upper end of the rack body, a blocking plate and a positioning plate are fixedly connected to the side end of the supporting plate, a classifying plate is fixedly connected between the positioning plate and the auxiliary guide plate, the positioning plate is of an L-shaped structure, the side end of the positioning plate abuts against the supporting plate, the fixing frame is of a T-shaped structure, and a positioning block is fixedly connected to the middle of the fixing frame. The positioning block is located at the net tail end of the positioning plate, a positioning groove is formed in the middle of the positioning block, and a contraction groove is formed in the groove bottom of the right side of the positioning groove.

Description

Technical Field

[0001] This utility model relates to the field of screw and nut assembly technology, specifically to an automatic assembly machine for double-headed screws and nuts. Background Technology

[0002] Screws and nuts are used together to tighten various components, offering a simple and convenient fit, and are therefore widely used in various fields. However, when installing a nut onto a screw, the helical nature of the screw threads significantly increases the mating distance, making the installation process time-consuming. In the prior art, invention patent CN115922310A discloses an automatic assembly machine for double-ended screws and nuts. This patent automatically feeds screws and nuts, then moves the nuts to both ends of the screw through an assembly station, and finally installs the screw and nut.

[0003] However, there are some problems with the feeding of nuts in the actual assembly process. The assembly station needs to drive the nuts to rotate because the nuts need to be positioned. However, the guiding and positioning mechanism of the nuts is relatively simple during the feeding and positioning process. The nuts are prone to angular deviation during the movement, resulting in inaccurate positioning of the nuts and making it impossible to install the nuts on the assembly station. Utility Model Content

[0004] The purpose of this invention is to provide an automatic assembly machine for double-headed screws and nuts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic assembly machine for double-headed screws and nuts, comprising a frame body, with feeding mechanisms on both sides of the upper end of the frame body for conveying nuts, a sliding guide plate at the top of the feeding mechanism, and an auxiliary guide plate at the lower end of the sliding guide plate, a support plate and a fixing frame fixedly connected to the upper end of the frame body, a blocking plate and a positioning plate fixedly connected to the side end of the support plate, a guide protrusion fixedly connected to the side end of the support plate, a sorting plate fixedly connected between the positioning plate and the auxiliary guide plate, the positioning plate having an L-shaped structure, the side end of the positioning plate abutting against the support plate, the fixing frame having a T-shaped structure, a positioning block fixedly connected in the middle of the fixing frame, the positioning block being located at the tail end of the positioning plate, a positioning groove in the middle of the positioning block, a shrinkage groove at the bottom right side of the positioning groove, a deformation plate inside the shrinkage groove, and a connecting spring fixedly connected between the deformation plate and the shrinkage groove.

[0006] Preferably, the sliding guide plate has an arc-shaped structure in the middle, and both the sliding guide plate and the auxiliary guide plate are inclined and staggered.

[0007] Preferably, the width of the sorting plate is smaller than that of the auxiliary guide plate and the positioning plate, the side end of the sorting plate abuts against the support plate, and the lower end of the sorting plate is provided with a collection compartment.

[0008] Preferably, the baffle plate has a triangular structure, is located at the upper end of the sorting plate, and the included angle between the baffle plate and the sorting plate is an acute angle.

[0009] Preferably, the bottom of the positioning groove on both sides is inclined, and two magnet blocks are embedded in the bottom of the lower end of the positioning groove, with the magnet blocks located on both sides of the bottom of the groove.

[0010] Preferably, the lower end of the deformable plate is hinged to the shrinkage groove, the upper corner of the deformable plate has an arc-shaped structure, and when there is no nut in the positioning groove, half of the upper section of the deformable plate is located in the positioning groove, and the other half of the upper end of the deformable plate is retracted into the shrinkage groove.

[0011] Preferably, the side end of the guide protrusion has an arc-shaped structure, the upper end of the guide protrusion has a small width, the lower end of the guide protrusion has a large width, and the lower end of the guide protrusion is smoothly connected to the positioning groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: After the feeding mechanism conveys the nut to the sliding guide plate, the nut is conveyed to the positioning block through the sliding guide plate, the blocking plate and the positioning plate. The guide protrusion and the deformation plate cooperate to guide the nut, causing the angle of the nut to shift, so that the corner of the nut will not be vertically downward. When the shifted nut moves to the positioning groove, the magnet attracts the nut, and then the positioning groove positions the nut to ensure that the angle of the nut is correct, thus ensuring the normal progress of subsequent assembly processes. Attached Figure Description

[0013] Figure 1 A machine for assembling screws and nuts.

[0014] Figure 2 This is an enlarged view of point A.

[0015] Figure 3 Diagram showing the guide and positioning connection for the positioning block and nut.

[0016] In the diagram: 1. Main frame, 2. Feeding mechanism, 3. Sliding guide plate, 4. Auxiliary guide plate, 5. Sorting plate, 6. Support plate, 7. Blocking plate, 8. Positioning plate, 9. Positioning block, 10. Fixing frame, 11. Positioning groove, 12. Guide protrusion, 13. Magnet block, 14. Shrinkage groove, 15. Deformation plate, 16. Connecting spring. Detailed Implementation

[0017] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: an automatic assembly machine for double-headed screws and nuts, including a frame body 1. Feeding mechanisms 2 are provided on both sides of the upper end of the frame body 1. The feeding mechanisms 2 convey nuts. A sliding guide plate 3 is provided at the top of the feeding mechanism 2, and an auxiliary guide plate 4 is provided at the lower end of the sliding guide plate 3. A support plate 6 and a fixing frame 10 are fixedly connected to the upper end of the frame body 1. A blocking plate 7 and a positioning plate 8 are fixedly connected to the side end of the support plate 6. A guide protrusion 12 is fixedly connected to the side end of the support plate 6. The positioning plate 8 and the auxiliary guide plate 4... A sorting plate 5 is fixedly connected between the two. The positioning plate 8 has an L-shaped structure and its side end abuts against the support plate 6. The fixing frame 10 has a T-shaped structure and a positioning block 9 is fixedly connected in the middle of the fixing frame 10. The positioning block 9 is located at the tail end of the mesh of the positioning plate 8. The positioning block 9 has a positioning groove 11 in the middle and a shrinkage groove 14 on the right side of the bottom of the groove. A deformation plate 15 is provided in the shrinkage groove 14. A connecting spring 16 is fixedly connected between the deformation plate 15 and the shrinkage groove 14. The nut is conveyed to the sliding guide plate 3 by the feeding mechanism 2.

[0019] The sliding guide plate 3 has an arc-shaped structure in the middle. Both the sliding guide plate 3 and the auxiliary guide plate 4 are inclined. The sliding guide plate 3 and the auxiliary guide plate 4 are staggered. The nut slides down the sliding guide plate 3 onto the auxiliary guide plate 4, and then moves along the auxiliary guide plate 4 to the sorting plate 5.

[0020] The width of the sorting plate 5 is smaller than that of the auxiliary guide plate 4 and the positioning plate 8. The side end of the sorting plate 5 abuts against the support plate 6. The lower end of the sorting plate 5 is provided with a collection bin. The baffle plate 7 has a triangular structure and is located at the upper end of the sorting plate 5. The included angle between the baffle plate 7 and the sorting plate 5 is an acute angle. The baffle plate 7 blocks the vertical nuts, and the vertical nuts will fall down the sorting plate into the collection bin. The nuts can only pass horizontally through the sorting plate 5.

[0021] The bottom of the positioning groove 11 is inclined on both sides. Two magnet blocks 13 are embedded in the bottom of the lower end of the positioning groove 11. The magnet blocks 13 are located on both sides of the bottom of the groove. The lower end of the deformable plate 15 is hinged to the shrinkage groove 14. The upper corner of the deformable plate 15 is arc-shaped. When there is no nut in the positioning groove 11, half of the upper section of the deformable plate 15 is located in the positioning groove 11, and the other half of the upper section of the deformable plate 15 is retracted into the shrinkage groove 14. The side end of the guide protrusion 12 is arc-shaped. The upper end of the guide protrusion 12 is narrow, and the lower end of the guide protrusion 12 is narrow. With a large width, the lower end of the guide protrusion 12 is smoothly connected to the positioning groove 11. When the nut moves to the positioning block 9, the guide protrusion 12 guides the nut, allowing it to tilt and slide into the positioning groove 11. At this time, the deformation plate 15 deforms the angle of the nut. The guide protrusion 12 and the deformation plate 15 cooperate with each other to prevent the outer corner of the nut from pointing vertically downward. At this time, the magnet block 13 attracts the nut, and with the guidance of the positioning groove 11, the nut and the positioning groove can be precisely engaged, ensuring that subsequent assembly processes can proceed smoothly.

[0022] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand 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. Double-head screw nut automatic assembly machine, comprising a rack main body (1), characterized in that: The upper end of the rack body (1) is provided with a feeding mechanism (2) on both sides, the feeding mechanism (2) conveys nuts, the top end of the feeding mechanism (2) is provided with a sliding guide plate (3), the lower end of the sliding guide plate (3) is provided with an auxiliary guide plate (4), the upper end of the rack body (1) is fixedly connected with a support plate (6) and a fixed frame (10), the side end of the support plate (6) is fixedly connected with a blocking plate (7) and a positioning plate (8), the side end of the support plate (6) is fixedly connected with a guide protrusion (12), the positioning plate (8) and the auxiliary guide plate (4) are fixedly connected with a classification plate (5), the positioning plate (8) is an L-shaped structure, the side end of the positioning plate (8) abuts against the support plate (6), the fixed frame (10) is a T-shaped structure, the middle of the fixed frame (10) is fixedly connected with a positioning block (9), the positioning block (9) is located at the tail end of the positioning plate (8), the middle of the positioning block (9) is provided with a positioning groove (11), the right side groove bottom of the positioning groove (11) is provided with a contraction groove (14), the contraction groove (14) is provided with a deformation plate (15), the deformation plate (15) and the contraction groove (14) are fixedly connected with a connecting spring (16).

2. The double-end screw nut automatic assembly machine according to claim 1, characterized in that: The middle of the sliding guide plate (3) is an arc-shaped structure, the sliding guide plate (3) and the auxiliary guide plate (4) are both arranged obliquely, and the sliding guide plate (3) and the auxiliary guide plate (4) are arranged staggeredly.

3. The double-end screw nut automatic assembly machine according to claim 1, characterized in that: The width of the classification plate (5) is smaller than that of the auxiliary guide plate (4) and the positioning plate (8), the side end of the classification plate (5) abuts against the support plate (6), and the lower end of the classification plate (5) is provided with a collection bin.

4. The double-end screw and nut automatic assembly machine according to claim 1, characterized in that: The blocking plate (7) is a triangular structure, the blocking plate (7) is located at the upper end of the classification plate (5), and the included angle between the blocking plate (7) and the classification plate (5) is an acute angle.

5. The double-end screw and nut automatic assembly machine according to claim 1, characterized in that: The groove bottoms on both sides of the positioning groove (11) are inclined structures, two magnet blocks (13) are inlaid in the groove bottoms on both sides of the positioning groove (11), and the magnet blocks (13) are located on both sides of the groove bottoms.

6. The double-end screw and nut automatic assembly machine according to claim 1, characterized in that: The lower end of the deformation plate (15) is hinged to the contraction groove (14), the upper end corner of the deformation plate (15) is an arc-shaped structure, when there is no nut in the positioning groove (11), half of the upper end of the deformation plate (15) is located in the positioning groove (11), and the other half of the upper end of the deformation plate (15) is contracted in the contraction groove (14).

7. The double-end screw and nut automatic assembly machine according to claim 1, characterized in that: The side end of the guide protrusion (12) is an arc-shaped structure, the width of the upper end of the guide protrusion (12) is small, the width of the lower end of the guide protrusion (12) is large, and the lower end of the guide protrusion (12) is smoothly connected with the positioning groove (11).

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