Nut twisting machine with spring limiting structure

Abstract

The utility model relates to the field of nut twisting machines, in particular to a nut twisting machine with a spring limiting structure, which comprises a bottom plate, a driving mechanism mounted at the upper end of the bottom plate and used for mounting nuts, a case mounted at the rear end of the driving mechanism, and a pushing mechanism used for clamping materials with threaded structures, the propelling mechanism comprises a sliding rail, the sliding rail is installed in the middle of the upper end of the bottom plate, a sliding frame is slidably connected to the upper end of the sliding rail, a clamping groove block is fixed to the upper end of one side of the sliding frame, and a screw is rotationally connected into the sliding frame. By arranging a spring limiting structure, when the device clamps a copper pipe, a clamping air cylinder drives a clamping mold to move, so that the clamping mold can clamp a spring and the copper pipe in the clamping mold, and the copper pipe and the spring can be clamped and fixed while the device twists a nut; therefore, the spring does not need to be installed and fixed tediously after the nut twisting operation is carried out by the device.

Description

Technical Field

[0001] The utility model relates to the field of nut twisting machines, in particular to a nut twisting machine with a spring limiting structure. Background Art

[0002] A nut tightening machine is a device that drives a nut or a structure with a threaded head to rotate through a rotating drive structure such as a motor, thereby connecting the nut to the threaded head structure.

[0003] However, the existing nut twisting machine does not have a spring limiting structure, so after the nut twisting machine installs the nut, a clamping structure is required to install and fix the spring, which is relatively cumbersome and troublesome, resulting in poor operation efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a nut twisting machine with a spring limiting structure in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A nut twisting machine with a spring limiting structure comprises a bottom plate, a driving mechanism for installing nuts is installed on the upper end of the bottom plate, a chassis is installed on the rear end of the driving mechanism, and a propulsion mechanism is also included for clamping materials with a threaded structure;

[0007] The propulsion mechanism includes a slide rail, which is installed in the middle of the upper end of the base plate, and the upper end of the slide rail is slidably connected to a slide frame, and a slot block is fixed to the upper end of one side of the slide frame, and a screw is rotatably connected inside the slide frame, and a small motor is installed at the input end of the screw, and a limit rod is arranged on the front side of the screw, and the limit rod is fixed to the slide frame. The propulsion mechanism also includes a spring limit structure, which includes a sliding mold, and the sliding mold is arranged between the limit rod and the screw. The upper end of the sliding mold is slidably connected to a clamping mold, and a clamping cylinder is installed on the upper end of the rear side of the sliding frame, and the telescopic end of the clamping cylinder is fixed to the rear end face of the clamping mold, a copper tube is arranged between the front end face of the clamping mold and the sliding mold, and one end of the copper tube is located in the middle of the slot block, a spring is arranged on the outer ring of the copper tube, and a threaded head is installed at one end of the copper tube.

[0008] Preferably, the sliding mold is threadedly connected to the screw rod, and the sliding mold is slidably connected to the limiting rod.

[0009] Preferably, a clamping block is fixed to the front end face of the clamping die and the end face corresponding to the sliding die.

[0010] Preferably: a propulsion cylinder is installed inside the upper end surface of the bottom plate, and the telescopic end of the propulsion cylinder is fixed to the sliding frame.

[0011] Preferably, the driving mechanism comprises a mounting seat, the mounting seat is fixed to the upper end of one side of the bottom plate, a driving motor is mounted on the upper end of the mounting seat, and a charging barrel is fixed to the output end of the driving motor.

[0012] Preferably, the drive motor is a drive device with adjustable torque.

[0013] The beneficial effects compared with the prior art are as follows:

[0014] By setting up a spring limiting structure, when the device clamps the copper tube, the clamping cylinder drives the clamping mold to move, so that the clamping mold can clamp the spring and the copper tube inside it, and can clamp and fix the copper tube and the spring while the device twists the nut, so that the device does not need to install and fix the spring in a tedious manner after the nut twisting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of a nut twisting machine with a spring limiting structure described in the utility model;

[0017] Figure 2 It is a structural schematic diagram of a nut twisting machine propulsion mechanism with a spring limiting structure described in the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of a propulsion mechanism of a nut twisting machine with a spring limiting structure described in the utility model;

[0019] Figure 4 It is a structural schematic diagram of a nut twisting machine driving mechanism with a spring limiting structure described in the utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 1. Base plate; 11. Connecting frame; 12. Fixing bolt; 2. Chassis; 3. Slide rail; 31. Sliding frame; 32. Slot block; 33. Push cylinder; 34. Screw; 35. Small motor; 36. Limit rod; 37. Sliding mold; 38. Clamping mold; 39. Clamping cylinder; 310. Copper tube; 311. Spring; 312. Threaded head; 4. Mounting seat; 41. Driving motor; 42. Loading barrel. DETAILED DESCRIPTION

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-Figure 4 As shown, a nut tightening machine with a spring limiting structure includes a base plate 1, a driving mechanism for installing nuts is installed on the upper end of the base plate 1, a chassis 2 is installed at the rear end of the driving mechanism, and also includes a propulsion mechanism for clamping materials with a threaded structure.

[0026] The front and rear ends of the bottom plate 1 are both fixed with connecting frames 11, and a plurality of fixing bolts 12 are arranged in the middle of the connecting frame 11; the device can be fixed to a suitable position by the fixing bolts 12, so as to avoid deviation when the device is in operation.

[0027] The propulsion mechanism includes a slide rail 3, which is installed in the middle of the upper end of the base plate 1. The upper end of the slide rail 3 is slidably connected to a sliding frame 31. A slot block 32 is fixed to the upper end of one side of the sliding frame 31. A propulsion cylinder 33 is installed inside the upper end surface of the base plate 1, and the telescopic end of the propulsion cylinder 33 is fixed to the sliding frame 31. A screw rod 34 is rotatably connected inside the sliding frame 31. A small motor 35 is installed at the input end of the screw rod 34. A limit rod 36 is set at the front side of the screw 34, and the limit rod 36 is fixed to the sliding frame 31. The propulsion mechanism also includes a spring limiter The spring limiting structure includes a sliding mold 37, which is arranged between the limiting rod 36 and the screw rod 34, the sliding mold 37 is threadedly connected to the screw rod 34, the sliding mold 37 is slidably connected to the limiting rod 36, and the upper end of the sliding mold 37 is slidably connected to a clamping mold 38, and the front end surface of the clamping mold 38 and the end surface corresponding to the sliding mold 37 are both fixed with clamping blocks, and a clamping cylinder 39 is installed at the upper end of the rear side of the sliding frame 31, and the telescopic end of the clamping cylinder 39 is fixed to the rear end surface of the clamping mold 38, and the clamping mold 38 A copper tube 310 is arranged between the front end face and the sliding mold 37, and one end of the copper tube 310 is located in the middle of the slot block 32. A spring 311 is arranged on the outer ring of the copper tube 310, and a threaded head 312 is installed on one end of the copper tube 310. When the device is in operation, the sliding mold 37 is threadedly connected with the screw rod 34 and the sliding mold 37 is slidably connected with the limit rod 36. When the small motor 35 drives the screw rod 34 to rotate, the sliding mold 37 can be moved, so that the clamping mold 38 and the clamping block on the sliding mold 37 are located at the spring 311. At 30mm from the end, the clamping cylinder 39 drives the movement of the clamping mold 38 so that the clamping mold 38 clamps and fixes the spring 311 and the copper tube 310 inside it, so that the copper tube 310 and the spring 311 can be clamped and fixed while the device is twisting the nut, so that the device does not need to install and fix the spring 311 after the tedious operation of twisting the nut. After preparation, the cylinder 33 is pushed to drive the sliding frame 31 to move toward the driving mechanism, so that the threaded head 312 can be connected to the nut installed on the driving mechanism.

[0028] The driving mechanism includes a mounting base 4, which is fixed at the upper end of one side of the base plate 1. A driving motor 41 is installed at the upper end of the mounting base 4. The driving motor 41 is a driving device with adjustable torque. A loading barrel 42 is fixed at the output end of the driving motor 41. Before the device is operated, the driving motor 41 is adjusted to a suitable torque as needed, and then the prepared nut is loaded into the loading barrel 42. When the threaded head 312 is fed, the driving motor 41 drives the loading barrel 42 to rotate.

[0029] Working principle: Before the device is operated, the driving motor 41 is adjusted to a suitable torque as needed. Through the threaded connection between the sliding mold 37 and the screw 34 and the sliding connection between the sliding mold 37 and the limit rod 36, when the small motor 35 drives the screw 34 to rotate, the sliding mold 37 can be moved, so that the clamping mold 38 and the clamping block on the sliding mold 37 are located 30 mm from the end of the spring 311. The clamping cylinder 39 drives the movement of the clamping mold 38 so that the clamping mold 38 clamps and fixes the spring 311 and the copper tube 310 inside it, so that the copper tube 310 and the spring 311 can be clamped and fixed while the device is twisting the nut. After preparation is completed, the propulsion cylinder 33 drives the sliding frame 31 to move toward the driving mechanism, and at the same time, the driving motor 41 drives the loading barrel 42 to rotate, so that the nut in the loading barrel 42 can be connected to the threaded head 312 on the copper tube 310.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A nut twisting machine with a spring limiting structure, comprising a base plate (1), a driving mechanism for installing nuts is installed on the upper end of the base plate (1), and a chassis (2) is installed at the rear end of the driving mechanism, characterized in that: Also included is a propulsion mechanism for clamping materials with a threaded structure; The propulsion mechanism comprises a slide rail (3), wherein the slide rail (3) is installed in the middle of the upper end of the base plate (1), the upper end of the slide rail (3) is slidably connected to a slide frame (31), a slot block (32) is fixed to the upper end of one side of the slide frame (31), a screw rod (34) is rotatably connected inside the slide frame (31), a small motor (35) is installed at the input end of the screw rod (34), a limiting rod (36) is arranged at the front side of the screw rod (34), and the limiting rod (36) is fixed to the slide frame (31), and the propulsion mechanism also comprises a spring limiting structure, the spring limiting structure comprises a sliding mold (37), and the sliding mold (37) is arranged A clamping die (38) is slidably connected to the upper end of the sliding die (37) between the limiting rod (36) and the screw rod (34); a clamping cylinder (39) is installed at the upper end of the rear side of the sliding frame (31), and the telescopic end of the clamping cylinder (39) is fixed to the rear end face of the clamping die (38); a copper tube (310) is arranged between the front end face of the clamping die (38) and the sliding die (37), and one end of the copper tube (310) is located in the middle of the slot block (32); a spring (311) is arranged on the outer ring of the copper tube (310), and a threaded head (312) is installed at one end of the copper tube (310).

2. The nut twisting machine with a spring limiting structure according to claim 1, characterized in that: The sliding mold (37) is threadedly connected to the screw rod (34), and the sliding mold (37) is slidably connected to the limiting rod (36).

3. The nut twisting machine with a spring limiting structure according to claim 1, characterized in that: A clamping block is fixed to the front end face of the clamping die (38) and the corresponding end face of the sliding die (37).

4. The nut twisting machine with a spring limiting structure according to claim 1, characterized in that: A propulsion cylinder (33) is installed inside the upper end surface of the bottom plate (1), and the telescopic end of the propulsion cylinder (33) is fixed to the sliding frame (31).

5. The nut twisting machine with a spring limiting structure according to claim 1, characterized in that: The driving mechanism comprises a mounting seat (4), the mounting seat (4) being fixed to the upper end of one side of the base plate (1), a driving motor (41) being mounted on the upper end of the mounting seat (4), and a loading barrel (42) being fixed to the output end of the driving motor (41).

6. The nut twisting machine with a spring limiting structure according to claim 5, characterized in that: The driving motor (41) is a driving device with adjustable torque.

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