Nut screwing machine with adaptive adjustment function

Abstract

The utility model discloses an adaptive adjustment nut screwing machine which comprises a supporting device, a synchronizing device is fixedly installed at the bottom of the front end of the supporting device, a limiting device is installed at the front end of the top of the synchronizing device in a sliding mode, and the limiting device comprises a first positioning bolt, a supporting top frame, a U-shaped clamping key, a supporting base and a limiting clamping plate. The supporting top frame is fixedly installed at the rear end of the top of the supporting base, the U-shaped clamping keys are slidably inserted into the two ends of the supporting top frame, the limiting clamping plate is fixedly installed between the two U-shaped clamping keys, and the first positioning bolt penetrates through the supporting top frame in a threaded mode and is rotationally installed in the center of the top end of the limiting clamping plate. The synchronizing device comprises a displacement rod, a supporting vertical frame, a second positioning bolt and vertical supports, and the displacement rod is connected between the two vertical supports in a sliding and sleeving mode. Through the arrangement of the limiting device and the synchronizing device, the purpose of limiting workpieces with different sizes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nut - tightening machines, and particularly to an adaptable - adjusting nut - tightening machine. Background Technique

[0002] A nut - tightening machine, also known as an automatic screw - feeding and locking machine, an automatic screw - tightening machine, an automatic screw machine, an automatic screw - driving machine, or an automatic screw - fastening system, etc., is a device that can automatically complete the tightening or loosening of screws. It mainly consists of an automatic feeding mechanism and an automatic locking mechanism (including an automatic feeder and an automatic screw - locking screwdriver).

[0003] For example, a charging - gun automatic nut - tightening machine with the Chinese patent publication number CN210549413U includes: a fixed base, a rotating mechanism, a nut fixing member, and a moving component; the fixed base is oppositely arranged with the rotating mechanism for fixing the charging - gun body; the rotating mechanism is connected with the nut fixing member, and the nut fixing member is used for clamping and fixing nuts; the moving component is connected with the rotating mechanism.

[0004] When the nut - tightening machine in the above - mentioned patent is in use, it can only achieve the purpose of improving the installation efficiency. However, when the existing nut - tightening machine is in use, due to the non - adjustable positioning structure, it can only be restricted to workpieces of a specified size, reducing the adaptability of the nut - tightening machine. Therefore, an equipment is needed to improve this problem. Content of the Utility Model

[0005] The purpose of the utility model is to provide an adaptable - adjusting nut - tightening machine to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an adaptable - adjusting nut - tightening machine, including a support device, a synchronization device is fixedly installed at the bottom of the front end of the support device, a limiting device is slidably installed at the front end of the top of the synchronization device. The limiting device includes a first positioning bolt, a support top frame, a U - shaped key, a support base, and a limiting card plate. The support top frame is fixedly installed at the rear end of the top of the support base. The U - shaped key is slidably inserted at both ends of the support top frame. The limiting card plate is fixedly installed between the two U - shaped keys. The first positioning bolt is threadedly penetrated through the support top frame and rotatably installed at the center of the top end of the limiting card plate.

[0007] Preferably, the synchronization device includes a displacement rod, a support vertical frame, a second positioning bolt, and a vertical support. The displacement rod is slidably sleeved between the two vertical supports. The vertical support is fixedly installed at the center of the interior of the support vertical frame. The second positioning bolt is threadedly inserted at the centers of both ends of the displacement rod.

[0008] Preferably, the support device includes a rotating shaft, a telescopic bracket, a hydraulic cylinder, a push plate and a nut wrench. The rotating shaft and the telescopic bracket are installed at the front bottom end of the nut wrench, and the rotating shaft is located outside the telescopic bracket. The hydraulic cylinders are symmetrically and fixedly installed on both sides of one end of the telescopic bracket away from the nut wrench, and the push plate is fixedly installed between the two hydraulic cylinders.

[0009] Preferably, the support vertical frame at the front end of the displacement rod is slidably inserted into the bottom end of the support base, and the support vertical frame at the rear end of the displacement rod is fixedly installed at the bottom end of the rotating shaft.

[0010] Preferably, plastic gaskets are fixedly installed on the opposite inner sides of the push plate.

[0011] Preferably, a clamping key is fixedly installed at the top end of the support vertical frame at the front end of the displacement rod, and a clamping groove is formed at the center of the bottom end of the support base.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] When the present device is in use, when the first positioning bolt is screwed, it can drive the limiting clamping plate to move downward. At the same time, when the hydraulic cylinder is started, it can drive the push plate to move, so that the workpiece and the nut can be restricted and fixed. It is convenient for the hydraulic cylinder to install the nut when rotating. Moreover, the displacement rod can be adjusted on the vertical support, and the second positioning bolt can limit and position the displacement rod, so that the support vertical frame can work at different heights, preventing the displacement rod from interfering with the workpiece on the telescopic bracket when the rotating shaft rotates, and completing the work of restricting and positioning different workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the structure of the limiting device of the present utility model;

[0016] Figure 3 is a schematic diagram of the structure of the synchronization device of the present utility model;

[0017] Figure 4 is a schematic diagram of the structure of the support device of the present utility model.

[0018] In the figure: 1 - limiting device, 2 - synchronization device, 3 - support device, 4 - first positioning bolt, 5 - support top frame, 6 - U-shaped clamping key, 7 - support base, 8 - limiting clamping plate, 9 - displacement rod, 10 - support vertical frame, 11 - second positioning bolt, 12 - vertical support, 13 - rotating shaft, 14 - telescopic bracket, 15 - hydraulic cylinder, 16 - push plate, 17 - nut wrench. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , an embodiment provided by the present invention: an adjustable nut wrench, including a support device 3. A synchronization device 2 is fixedly installed at the bottom of the front end of the support device 3. A limiting device 1 is slidably installed at the front end of the top of the synchronization device 2. The limiting device 1 includes a first positioning bolt 4, a support top frame 5, a U-shaped key 6, a support base 7, and a limiting card plate 8. The support top frame 5 is fixedly installed at the rear end of the top of the support base 7. The U-shaped key 6 is slidably inserted at both ends of the support top frame 5. The limiting card plate 8 is fixedly installed between the two U-shaped keys 6. The first positioning bolt 4 is threadedly penetrated through the support top frame 5 and rotatably installed at the center of the top end of the limiting card plate 8.

[0021] The synchronization device 2 includes a displacement rod 9, a support vertical frame 10, a second positioning bolt 11, and a vertical support 12. The displacement rod 9 is slidably sleeved between the two vertical supports 12. The vertical supports 12 are fixedly installed at the center of the interior of the support vertical frame 10. The second positioning bolt 11 is threadedly inserted at the centers of both ends of the displacement rod 9. By sliding the displacement rod 9 up and down between the two vertical supports 12, it can be ensured that the displacement rod 9 moves up and down in a straight line.

[0022] The support device 3 includes a rotating shaft 13, a telescopic bracket 14, a hydraulic cylinder 15, a push plate 16, and a nut wrench 17. The rotating shaft 13 and the telescopic bracket 14 are installed at the bottom of the front end of the nut wrench 17, and the rotating shaft 13 is located outside the telescopic bracket 14. The hydraulic cylinders 15 are symmetrically fixedly installed on both sides of the end of the telescopic bracket 14 away from the nut wrench 17. The push plate 16 is fixedly installed between the two hydraulic cylinders 15. By using a split setting for the rotating shaft 13 and the telescopic bracket 14, and the rotating shaft 13 and the telescopic bracket 14 can operate independently, it can prevent interference between the rotating shaft 13 and the telescopic bracket 14.

[0023] The support vertical frame 10 at the front end of the displacement rod 9 is slidably inserted into the bottom end of the support base 7, and the support vertical frame 10 at the rear end of the displacement rod 9 is fixedly installed at the bottom end of the rotating shaft 13. When the rotating shaft 13 rotates, it can drive the support base 7 to rotate simultaneously.

[0024] Plastic gaskets are fixedly installed on the opposite inner sides of the push plate 16 to prevent damage to the workpiece.

[0025] A key is fixedly installed at the top end of the support vertical frame 10 at the front end of the displacement rod 9, and a slot is provided at the center of the bottom end of the support base 7, allowing the support base 7 to slide on the top end of the support vertical frame 10.

[0026] Working principle: When in use, first place the workpiece body on the top end of the telescopic support 14 close to the push plate 16, then start the hydraulic cylinder 15 to drive the push plate 16 to move until the push plate 16 contacts the workpiece, so that the workpiece can be clamped and limited. And, plastic gaskets are fixedly installed on the opposite inner sides of the push plate 16, so as to prevent the push plate 16 from damaging the workpiece. After that, when the workpiece is restricted, place the nut to be installed between the limiting clamping plate 8 and the support base 7, and then rotate the first positioning bolt 4. Since the center of the top end of the limiting clamping plate 8 is rotationally connected to the center of the bottom end of the first positioning bolt 4, when the first positioning bolt 4 rotates, it can drive the limiting clamping plate 8 to move downward until the limiting clamping plate 8 presses the nut and the support base 7 tightly. When the limiting clamping plate 8 moves, the U-shaped key 6 moves in the sliding grooves inside both ends of the support top frame 5, so as to ensure that the limiting clamping plate 8 moves up and down in a straight line. Subsequently, start the nut screwing machine 17 to drive the telescopic support 14 to move forward until the threaded part of the workpiece contacts the nut between the limiting clamping plate 8 and the support base 7. Then start the nut screwing machine 17 to drive the rotating shaft 13 to rotate simultaneously. When the rotating shaft 13 rotates, it can drive the displacement rod 9, the support vertical frame 10 and the support base 7 to rotate simultaneously. Thus, the nut between the support base 7 and the limiting clamping plate 8 can rotate in the threaded area of the workpiece, so that the nut can move onto the workpiece. At the same time, the key at the top end of the support vertical frame 10 at the front end of the displacement rod 9 slides in the slot at the center of the bottom end of the support base 7, allowing the support base 7 to approach the workpiece, facilitating the installation of the nut onto the workpiece until the nut is completely installed onto the workpiece to complete the work. When this device is in use, by sliding the displacement rod 9 up and down between the two vertical supports 12, the position of the displacement rod 9 can be adjusted to prevent the displacement rod 9 from interfering with the workpiece when the rotating shaft 13 drives the displacement rod 9 to rotate. Subsequently, when the displacement rod 9 moves to the designated position, rotate the second positioning bolt 11 to tighten it with the vertical support 12, so as to fix the displacement rod 9 at the designated position for work. When the installation work of the workpiece and the nut is completed, rotate the first positioning bolt 4 in the reverse direction and then start the hydraulic cylinder 15, so as to drive the limiting clamping plate 8 and the push plate 16 to separate from the workpiece respectively, releasing the workpiece, facilitating the user to take out the workpiece and complete the work.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive nut tightening machine, comprising a supporting device (3), a synchronizing device (2) fixedly mounted at the front bottom of the supporting device (3), and a limiting device (1) slidably mounted at the top front of the synchronizing device (2), characterized in that: The limiting device (1) comprises a first positioning bolt (4), a supporting top frame (5), a U-shaped clamping key (6), a supporting base (7) and a limiting clamping plate (8); the supporting top frame (5) is fixedly mounted at the top rear end of the supporting base (7); the U-shaped clamping key (6) is slidably inserted at the two ends of the supporting top frame (5); the limiting clamping plate (8) is fixedly mounted between the two U-shaped clamping keys (6); the first positioning bolt (4) is threadedly penetrated through the supporting top frame (5) and is rotatably mounted at the top center of the limiting clamping plate (8).

2. The adaptable nut tightening machine according to claim 1, characterized in that: The synchronization device (2) comprises a displacement rod (9), a supporting vertical frame (10), a second positioning bolt (11) and a vertical bracket (12); the displacement rod (9) is slidably sleeved between the two vertical brackets (12); the vertical bracket (12) is fixedly mounted at the inner center of the supporting vertical frame (10); and the second positioning bolt (11) is threadedly inserted into the centers of both ends of the displacement rod (9).

3. The adaptable nut tightening machine according to claim 2, characterized in that: The supporting device (3) comprises a rotating shaft (13), a telescopic bracket (14), a hydraulic cylinder (15), a push plate (16) and a nut tightening machine (17); the rotating shaft (13) and the telescopic bracket (14) are mounted at the front end bottom of the nut tightening machine (17), and the rotating shaft (13) is located at the outer ring of the telescopic bracket (14); the hydraulic cylinder (15) is symmetrically fixedly mounted on both sides of one end of the telescopic bracket (14) away from the nut tightening machine (17); and the push plate (16) is fixedly mounted between the two hydraulic cylinders (15).

4. The adaptable nut tightening machine according to claim 3, characterized in that: The supporting vertical frame (10) at the front end of the displacement rod (9) is slidably inserted into the bottom end of the supporting base (7), and the supporting vertical frame (10) at the rear end of the displacement rod (9) is fixedly mounted on the bottom end of the rotating shaft (13).

5. The adaptable and adjustable nut tightening machine according to claim 4, characterized in that: A plastic gasket is fixedly mounted on the inner side opposite to the push plate (16).

6. The adaptable nut tightening machine according to claim 5, characterized in that: A key is fixedly mounted on the top of the supporting vertical frame (10) at the front end of the displacement rod (9), and a slot is provided at the center of the bottom end of the supporting base (7).

Images