Variable-pitch screw hitting structure

Abstract

The utility model belongs to the technical field of machining automation, and discloses a variable-pitch screw hitting structure which comprises a variable-pitch module, a screw hitting mechanism and a screw hitting mechanism. The bearings are fixedly mounted on the horizontal mounting surface, a lead screw is rotatably connected between the two bearings, a motor is fixedly mounted at the upper end of the pitch-variable module, a transmission belt is arranged between an output shaft of the motor and the lead screw, a sliding table is slidably connected to the outer wall of the lead screw, and a connecting piece is fixedly mounted at the lower end of the sliding table; according to the variable-pitch screw driving structure, in the screw driving process, if the distance between two screws needs to be changed, the lead screw is driven by the motor to rotate, the sliding table is driven to move along the lead screw in the rotating process of the lead screw, and therefore the position of the movable base is changed, the screw can be driven by the motor to rotate, and the screw can be driven by the motor to rotate. And the distance between the two screw hitting guns is adjusted, so that screws are accurately and stably hit to fix products, and the equipment can be compatible with other products.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical automation, in particular to a variable-pitch screw driving structure. Background Art

[0002] Screw installation automation is a technology widely used in modern manufacturing. It uses automated equipment to replace manual work such as taking, placing, and tightening screws, greatly improving production efficiency and assembly quality. Among them, the screw tightening machine is an important equipment for realizing automated assembly, integrating multiple functions such as multi-station turntable assembly line, AI equipment preventive maintenance, data traceability, and product quality analysis.

[0003] The automatic screw driving mechanism in the prior art generally adopts a single-gun installation or a double-gun fixed installation method. If the distance between the two screws needs to be adjusted, the screw driving needs to be manually controlled by a single gun, which leads to low work efficiency. In order to solve the above problem, a variable-distance screw driving structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems.

[0005] The technical solution adopted by the utility model is as follows: a variable pitch screw driving structure, comprising:

[0006] The variable pitch module has a horizontal mounting surface disposed on the front side thereof;

[0007] A bearing is fixedly mounted on the horizontal mounting surface, a lead screw is rotatably connected between the two bearings, a motor is fixedly mounted on the upper end of the variable pitch module, a transmission belt is arranged between the output shaft of the motor and the lead screw, a slide is slidably connected to the outer wall of the lead screw, a connecting piece is fixedly mounted on the lower end of the slide, and a moving seat is fixedly mounted on the front side of the connecting piece;

[0008] The fixed seat is fixedly installed on the front side of the variable pitch module. The front sides of the movable seat and the fixed seat are both fixedly installed with electric screw guns, and the two electric screw guns are located in the same horizontal plane.

[0009] Through the above technical solution, during the screw driving process, if it is necessary to change the distance between two screws, the motor drives the screw to rotate, and the slide is driven to move along the screw during the rotation of the screw, so as to change the position of the movable seat and adjust the distance between the two screw driving guns, so as to accurately and stably screw and fix the product, so that the equipment can be compatible with other products.

[0010] In a preferred embodiment, two limit guide rails are fixedly installed at the lower front end of the variable pitch module, the outer walls of the two limit guide rails are slidably connected to the limit sliders, and the front sides of the two limit sliders are fixedly connected to the rear wall of the moving seat.

[0011] Through the above technical solution, by setting the limiting guide rail and the limiting slider, the movable seat can always maintain horizontal movement, thereby improving the accuracy of screw driving.

[0012] In a preferred embodiment, a camera is fixedly mounted on the bottom of the variable distance module.

[0013] Through the above technical solution, during the distance change process, the moving position is recorded by the camera, and the accuracy of screw driving is improved by cooperating with the visual recognition technology.

[0014] In a preferred embodiment, a plurality of limit sensors are fixedly mounted on the upper end of the variable distance module.

[0015] In a preferred embodiment, the motor and the electric screw gun are both controlled by PLC.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows: the utility model provides a variable-pitch screw driving structure.

[0017] During the screw driving process, if the distance between the two screws needs to be changed, the motor is used to drive the screw to rotate, and the slide is driven to move along the screw during the rotation of the screw, thereby changing the position of the moving seat and adjusting the distance between the two screw driving guns, so as to accurately and stably fix the product with screws, making the equipment compatible with other products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is the front view of the variable pitch module in the utility model.

[0020] Markings in the figure: 1-variable pitch module; 2-bearing; 3-screw; 4-motor; 5-slide; 6-connecting plate; 7-moving seat; 8-fixed seat; 9-electric screw gun; 10-camera; 11-limit guide rail; 12-limit slider; 13-limit sensor.

[0021] It should be noted that the electric screw gun in the present invention is model Makita DFR550Z, which is a prior art and its working principle has been made public, so it is not described in detail in the specification. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The following will be combined Figure 1-2 A variable pitch screw driving structure according to an embodiment of the utility model is described in detail.

[0024] Example:

[0025] A variable pitch screw driving structure, comprising:

[0026] The pitch-changing module 1 has a horizontal mounting surface on its front side, and a camera 10 is fixedly mounted on the bottom of the pitch-changing module 1. During the pitch-changing process, the camera 10 records the moving position, and the accuracy of screw driving is improved by cooperating with visual recognition technology;

[0027] Bearing 2 is fixedly mounted on the horizontal mounting surface, a lead screw 3 is rotatably connected between the two bearings 2, a motor 4 is fixedly mounted on the upper end of the pitch-changing module 1, a transmission belt is arranged between the output shaft of the motor 4 and the lead screw 3, a slide 5 is slidably connected to the outer wall of the lead screw 3, a connecting piece 6 is fixedly mounted on the lower end of the slide 5, and a moving seat 7 is fixedly mounted on the front side of the connecting piece 6;

[0028] A plurality of limit sensors 13 are fixedly mounted on the upper end of the variable distance module 1, and two limit guide rails 11 are fixedly mounted on the lower end of the front side of the variable distance module 1. The outer walls of the two limit guide rails 11 are slidably connected with limit sliders 12, and the front sides of the two limit sliders 12 are fixedly connected to the rear wall of the moving seat 7. By arranging the limit guide rails 11 and the limit sliders 12, the moving seat 7 always maintains horizontal movement, thereby improving the accuracy of screw driving.

[0029] The fixed seat 8 is fixedly installed on the front side of the variable pitch module 1. Electric screw guns 9 are fixedly installed on the front sides of the movable seat 7 and the fixed seat 8. The motor 4 and the electric screw gun 9 are controlled by PLC. The two electric screw guns 9 are located in the same horizontal plane. During the screw driving process, if it is necessary to change the distance between the two screws, the motor 4 drives the screw rod 3 to rotate. During the rotation of the screw rod 3, the slide 5 is driven to move along the screw rod 3, thereby changing the position of the movable seat 7 and adjusting the distance between the two screw guns, so as to accurately and stably screw and fix the product, so that the equipment can be compatible with other products.

[0030] Working principle:

[0031] During the screw driving process, if the distance between the two screws needs to be changed, the motor 4 drives the screw rod 3 to rotate, and the slide 5 is driven to move along the screw rod 3 during the rotation of the screw rod 3, so as to change the position of the movable seat 7 and adjust the distance between the two screw driving guns, so as to accurately and stably fix the product with screws, so that the equipment can be compatible with other products.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A variable pitch screw driving structure, characterized in that: include: The variable pitch module (1) has a horizontal mounting surface provided on its front side; A bearing (2) is fixedly mounted on the horizontal mounting surface, a screw rod (3) is rotatably connected between the two bearings (2), a motor (4) is fixedly mounted on the upper end of the variable pitch module (1), a transmission belt is provided between the output shaft of the motor (4) and the screw rod (3), a slide table (5) is slidably connected to the outer wall of the screw rod (3), a connecting piece (6) is fixedly mounted on the lower end of the slide table (5), and a moving seat (7) is fixedly mounted on the front side of the connecting piece (6); A fixed seat (8) is fixedly mounted on the front side of the variable pitch module (1), and electric screw guns (9) are fixedly mounted on the front sides of the movable seat (7) and the fixed seat (8), and the two electric screw guns (9) are located on the same horizontal plane.

2. A variable pitch screw driving structure as claimed in claim 1, characterized in that: Two limit guide rails (11) are fixedly mounted on the lower front end of the pitch-changing module (1), the outer walls of the two limit guide rails (11) are slidably connected to limit sliders (12), and the front sides of the two limit sliders (12) are fixedly connected to the rear wall of the moving seat (7).

3. A variable pitch screw driving structure as claimed in claim 1, characterized in that: A camera (10) is fixedly mounted on the bottom of the variable distance module (1).

4. A variable pitch screw driving structure as claimed in claim 1, characterized in that: A plurality of limit sensors (13) are fixedly mounted on the upper end of the pitch-changing module (1).

5. The variable pitch screw driving structure according to claim 1, characterized in that: The motor (4) and the electric screw gun (9) are both controlled by PLC.

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