An automatic screw fastening machine

Abstract

This utility model relates to the field of automatic screw fastening machine technology, specifically an automatic screw fastening machine, comprising: a machine base, a transmission groove formed at the top center of the machine base, an opening and closing screw inserted into the transmission groove, one end of the opening and closing screw extending from the front end of the machine base, the extended end of the opening and closing screw being connected to a handle, a telescopic column elastically connected to the middle of the handle, a telescopic groove formed at the bottom of the telescopic column, and an insertion pin elastically connected in the telescopic groove; multiple sets of limiting slots are formed around the rear end of the machine base; the beneficial effect is that the automatic screw fastening machine proposed in this utility model first places the mold at the top center of the machine base, and then, by pressing the extrusion plate towards the inside of the telescopic column, the extrusion plate drives the bottom hinged connecting block to slide in the connecting slot, and by sliding inward, pushes the telescopic column out of the telescopic groove a certain distance, so that the telescopic column drives the bottom connected insertion pin to disengage from the limiting slot.

Description

Technical Field

[0001] This utility model relates to the field of automatic screw fastening machine technology, specifically an automatic screw fastening machine. Background Technology

[0002] In today's industrial production environment, fully automatic screw fastening machines are widely used in the assembly processes of various electronic and mechanical products as key equipment to improve assembly efficiency. Through automated operation, they can significantly reduce manual operation time and ensure the quality and consistency of screw tightening. However, with the increasing diversification of product types, they face some problems that urgently need to be solved in actual use.

[0003] Currently, most fully automatic screw fastening machines require the use of molds to fix the products before screw fastening. This is because different products have different characteristics in terms of shape and size. Only through molds can the product be kept stable during the screw fastening process, so that the screws can be accurately screwed into the predetermined position. However, the diversity of products means that screw fastening machines must frequently change molds to adapt to different products.

[0004] In existing fully automatic screw fastening machines, most equipment uses bolts to fix the molds onto the machine's work platform. This fixing method has many drawbacks. First, when installing the mold, workers need to tighten multiple bolts one by one, which not only consumes a lot of time and energy, but also presents problems when disassembling the mold. Due to the large number of bolts and the possibility of rust due to long-term use, the disassembly process is slow and prone to bolt damage. Second, this fixing method has certain requirements for the positioning accuracy of the mold. When installing a new mold, it is difficult to ensure that the mold can be accurately positioned in one go. If the mold installation position is deviated, it may cause problems such as slippage or misalignment during the screw fastening process, which may not only damage the product, but also affect the normal operation of the entire production line. Utility Model Content

[0005] The purpose of this invention is to provide an automatic screw fastening machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a machine base, with a transmission groove in the middle of the top of the machine base, into which an opening and closing screw is inserted. One end of the opening and closing screw extends from the front end of the machine base, and the extended end of the opening and closing screw is connected to a throttle. A telescopic column is elastically connected to the middle of the throttle, and a telescopic groove is provided at the bottom of the telescopic column, into which an insertion post is elastically connected. The machine base has multiple sets of limiting slots around the rear end of the throttle.

[0007] Preferably, a support frame is fixedly installed at the top center of the machine tool, an X-axis slide rail is provided on one side of the support frame, a Y-axis slide rail is slidably connected on the X-axis slide rail, and a screw assembly is slidably connected to the surface of the Y-axis slide rail.

[0008] Preferably, the two ends of the opening and closing screw have opposite threads, and the two ends of the opening and closing screw are slidably connected to sliding blocks. The top of the sliding blocks is connected to a clamping plate. The machine tool has limit grooves on both sides of the clamping plate, and limit posts are set in the limit grooves. The clamping plate is also slidably connected to the limit posts through the sliding blocks.

[0009] Preferably, a spring is provided in the telescopic groove at the bottom of the throttle, the outer side of the spring is connected to the bottom of the telescopic column, and the bottom of the spring is connected to the inner wall of the telescopic groove.

[0010] Preferably, the telescopic column is connected to a plug-in column at the bottom center, the plug-in column extends from the bottom of the throttle, and the plug-in column is perpendicular to the limiting slot opened at the bottom of the throttle.

[0011] Preferably, the outer ends of the telescopic column are hinged to hinge shafts on both sides, and a pressing plate is provided on the hinge shaft. The other end of the pressing plate is connected to a connecting block through the hinge shaft. The connecting block is inserted into a connecting slot opened on the surface of the throttle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention discloses an automatic screw fastening machine. First, the mold is placed at the top center of the machine platform. Then, by pressing the extrusion plate inwards towards the telescopic column, the extrusion plate causes the bottom hinged connecting block to slide in the connecting slot. Sliding inwards pushes the telescopic column out of the telescopic groove a certain distance, causing the telescopic column to disengage the bottom connected insertion pin from the limiting slot. Next, rotating the handle drives the bottom connected opening and closing screw. The opening and closing screw, through rotation, drives the clamping plates connected to the sliding blocks at both ends to open and close, clamping the mold. Furthermore, the inner side of the clamping plate is equipped with a rubber pad to prevent the clamping plate from damaging the mold. The clamping plates are limited on both sides by limiting pins in the limiting slots connected to the sliding blocks, preventing the clamping plates from tilting. After clamping is complete, releasing the pressing plate causes the spring in the telescopic groove to contract, causing the telescopic column to retract, allowing the insertion pin at the bottom center of the telescopic column to insert into the corresponding limiting slot, locking the rotation of the opening and closing screw. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0014] In the diagram: 1. Machine base; 2. Support frame; 3. X-axis slide rail; 4. Y-axis slide rail; 5. Screw assembly; 6. Transmission groove; 7. Opening and closing screw; 8. Limiting groove; 9. Limiting post; 10. Clamping plate; 11. Rubber pad; 12. Rotary handle; 13. Telescopic post; 14. Limiting slot; 15. Telescopic groove; 16. Spring; 17. Insertion post; 18. Hinge shaft; 19. Extrusion plate; 20. Connecting slot; 21. Connecting block. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Please see Figures 1 to 3 This utility model provides a technical solution: a machine base 1, with a transmission groove 6 in the middle of the top of the machine base 1, and an opening and closing screw 7 inserted into the transmission groove 6. One end of the opening and closing screw 7 extends from the front end of the machine base 1, and the extended end of the opening and closing screw 7 is connected to a throttle 12. The middle of the throttle 12 is elastically connected to a telescopic column 13, and the bottom of the telescopic column 13 is provided with a telescopic groove 15, in which a plug-in column 17 is elastically connected. The machine base 1 has multiple sets of limiting slots 14 around the rear end of the throttle 12. By releasing the pressing and squeezing plate 19, the spring 16 in the telescopic groove 15 drives the telescopic column 13 to retract through the contraction force.

[0017] A support frame 2 is fixedly installed at the top center of the machine base 1. An X-axis slide rail 3 is installed on one side of the support frame 2. A Y-axis slide rail 4 is slidably connected to the X-axis slide rail 3. A screw assembly 5 is slidably connected to the surface of the Y-axis slide rail 4. The two ends of the opening and closing screw 7 have opposite threads. The two ends of the opening and closing screw 7 are slidably connected to sliding blocks. The top of the sliding blocks is connected to a clamping plate 10. The machine base 1 has limit grooves 8 on both sides of the clamping plate 10. Limiting posts 9 are installed in the limit grooves 8. The clamping plate 10 is slidably connected to the limiting posts 9 through the sliding blocks. A spring 16 is installed in the telescopic groove 15 at the bottom of the throttle 12. The outside of the spring 16 is connected to the bottom of the telescopic post 13. The bottom of the spring 16 is connected to the inner wall of the telescopic groove 15. The telescopic column 13 is connected to the bottom center of the insertion column 17, which extends from the bottom of the throttle 12 and is perpendicular to the limiting slot 14 opened at the bottom of the throttle 12. The outer ends of the telescopic column 13 are hinged to the two sides of the hinge shaft 18, and the hinge shaft 18 is provided with the pressing plate 19. The other end of the pressing plate 19 is connected to the connecting block 21 through the hinge shaft. The connecting block 21 is inserted into the connecting slot 20 opened on the surface of the throttle 12. The spring 16 in the telescopic groove 15 drives the telescopic column 13 to retract through the contraction force, so that the insertion column 17 provided at the bottom center of the telescopic column 13 is inserted into the corresponding limiting slot 14, locking the rotation of the opening and closing screw 7.

[0018] In actual use, the mold is first placed at the top center of the machine base 1. Then, by pressing the extrusion plate 19 inwards towards the telescopic column 13, the extrusion plate 19 causes the bottom hinged connecting block 21 to slide in the connecting slot 20. By sliding inwards, the telescopic column 13 is pushed out of the telescopic groove 15 a certain distance, causing the telescopic column 13 to disengage the bottom connected insertion column 17 from the limiting slot 14. Then, by rotating the handle 12, the handle 12 drives the bottom connected opening and closing screw 7. The opening and closing screw 7 drives the clamping plate 10 connected to the sliding blocks at both ends to perform opening and closing movements. The mold is clamped, and a rubber pad 11 is provided on the inner side of the clamping plate 10 to prevent the clamping plate 10 from damaging the mold. The clamping plate 10 is limited by the limiting post 9 in the limiting groove 8 connected by the sliding block on both sides, so as to prevent the clamping plate 10 from tilting. After clamping is completed, the pressing and squeezing plate 19 is released. At this time, the spring 16 in the telescopic groove 15 drives the telescopic post 13 to retract through the contraction force, so that the insertion post 17 provided at the bottom center of the telescopic post 13 is inserted into the corresponding limiting slot 14, locking the rotation of the opening and closing screw 7.

[0019] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. An automatic screw fastening machine, characterized in that: include: The machine base (1) has a transmission groove (6) in the middle of the top of the machine base (1), and an opening and closing screw (7) is inserted in the transmission groove (6). One end of the opening and closing screw (7) extends from the front end of the machine base (1), and the end of the extended opening and closing screw (7) is connected to the throttle (12). The middle of the throttle (12) is elastically connected to the telescopic column (13), and the bottom of the telescopic column (13) has a telescopic groove (15), in which a plug-in column (17) is elastically connected. The machine base (1) has multiple sets of limiting slots (14) around the rear end of the throttle (12).

2. The automatic screw locker according to claim 1, characterized in that: A support frame (2) is fixedly installed at the top center of the machine base (1). An X-axis slide rail (3) is installed on one side of the support frame (2). A Y-axis slide rail (4) is slidably connected to the X-axis slide rail (3). A screw assembly (5) is slidably connected to the surface of the Y-axis slide rail (4).

3. The automatic screw locker according to claim 2, characterized in that: The two ends of the opening and closing screw (7) have opposite threads. The two ends of the opening and closing screw (7) are slidably connected to the sliding block. The top of the sliding block is connected to the clamping plate (10). The machine base (1) has limit grooves (8) on both sides of the clamping plate (10). Limiting posts (9) are set in the limit grooves (8). The clamping plate (10) is slidably connected to the limiting posts (9) through the sliding block.

4. The automatic screw locker according to claim 3, characterized in that: A spring (16) is provided in the telescopic groove (15) at the bottom of the throttle (12). The outer side of the spring (16) is connected to the bottom of the telescopic column (13), and the bottom of the spring (16) is connected to the inner wall of the telescopic groove (15).

5. The automatic screw locker according to claim 4, characterized in that: The bottom center of the telescopic column (13) is connected to the plug-in column (17), which extends from the bottom of the throttle (12) and is perpendicular to the limiting slot (14) opened at the bottom of the throttle (12).

6. The automatic screw locker according to claim 5, wherein: The telescopic column (13) has hinge shafts (18) on both sides of its outer end. A pressing plate (19) is provided on the hinge shaft (18). The other end of the pressing plate (19) is connected to a connecting block (21) through the hinge shaft. The connecting block (21) is inserted into the connecting slot (20) opened on the surface of the throttle (12).

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