Metal counter nut threading apparatus

Abstract

This utility model discloses a metal reverse-thread nut thread processing equipment, relating to the technical field of metal fastener processing equipment. It includes a base plate, on the upper surface of which a first electric cylinder is fixedly mounted. One end of the piston rod of the first electric cylinder is fixedly connected to a bearing plate. A transmission wheel is rotatably mounted at the corner of the bearing plate. This utility model, through the coordinated design of a positioning mechanism, uses a receiving hole inside the positioning base to determine the workpiece's position. Combined with a second electric cylinder driving a lifting rod to move up and down, the lifting rod moves downwards, bringing the workpiece into the receiving hole, and rises, pushing the workpiece out of the receiving hole. This significantly improves workpiece positioning accuracy, effectively avoiding thread quality problems caused by workpiece misalignment during processing. It can also adapt to nut workpieces of different sizes and specifications, enhancing the equipment's versatility. Furthermore, it can quickly push the workpiece out after processing, accelerating the material handling speed.

Description

Technical Field

[0001] This utility model relates to the technical field of metal fastener processing equipment, and in particular to a metal reverse thread nut thread processing equipment. Background Technology

[0002] In the production and processing of metal reverse-thread nuts, thread processing is the core process, and its processing accuracy and efficiency directly determine the performance of the nut and the production capacity.

[0003] However, in the existing technology, most metal reverse-thread nut thread processing equipment has the problem of unreasonable positioning mechanism design. It either relies on a single clamping structure to fix the workpiece, which makes it difficult to achieve precise centering. During processing, the workpiece is prone to offset, resulting in quality problems such as thread profile deviation and uneven pitch. In addition, since the nut is inside the fixture, it is also more cumbersome to pick up the material. Utility Model Content

[0004] The purpose of this invention is to solve the problems of low positioning accuracy, poor workpiece clamping synchronization, and cumbersome material handling in existing metal reverse thread nut thread processing equipment, and to propose a metal reverse thread nut thread processing equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a metal reverse thread nut thread processing equipment, including a base plate, a first electric cylinder is fixedly installed on the upper surface of the base plate, a bearing plate is fixedly connected to one end of the piston rod of the first electric cylinder, a transmission wheel is rotatably installed at the corner of the bearing plate, and a cutting tool is fixedly connected to the bottom of the transmission wheel;

[0006] A positioning mechanism is fixedly installed on the upper surface of the base plate. The positioning mechanism is located directly below the cutting tool. The positioning mechanism includes a second electric cylinder and a positioning base. The positioning base is fixedly installed at the end of the housing of the second electric cylinder. A lifting rod is fixedly connected to one end of the piston rod of the second electric cylinder. A receiving hole is opened at the center of the positioning base. The lifting rod is located inside the receiving hole. Clamping blocks are slidably installed at the three equal division points of the positioning base.

[0007] Preferably, a motor and belt drive assembly are fixedly installed at one end of the bearing plate, and the belt of the motor and belt drive assembly is connected to the drive wheel.

[0008] Preferably, a guide frame is fixedly installed on the upper surface of the base plate, and the guide frame is slidably connected to the support plate.

[0009] Preferably, the positioning base has an internal cavity, and a bevel gear is rotatably mounted inside the positioning base. The bevel gear is located inside the cavity, and a spiral protrusion is fixedly mounted on the upper surface of the bevel gear.

[0010] Preferably, the top of the bevel gear is slidably connected to the bottom of the clamping block, and a guide groove is provided at the junction of the positioning base and the clamping block.

[0011] Preferably, a transmission gear meshes below the bevel gear, and the transmission gear is rotatably mounted inside the positioning base.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, through the coordinated design of the positioning mechanism, the positioning base is provided with a receiving hole to determine the position of the workpiece. Then, combined with the second electric cylinder driving the lifting rod to move up and down, the lifting rod moves down to bring the workpiece into the receiving hole, and the lifting rod moves up to push the workpiece out of the receiving hole. This can greatly improve the positioning accuracy of the workpiece, effectively avoid the thread quality problem caused by the workpiece offset during processing, adapt to nut workpieces of different sizes and specifications, enhance the versatility of the equipment, and quickly push out the workpiece after processing to speed up the material handling speed.

[0014] 2. In this utility model, through the cooperation structure of the first electric cylinder and the guide frame, the piston rod of the first electric cylinder pushes the bearing plate to slide smoothly along the guide frame, driving the tool at the bottom of the transmission wheel to accurately rise and fall to the processing position, ensuring the accuracy of tool positioning; at the same time, the motor and belt transmission assembly drive the transmission wheel and the tool to rotate stably through the belt, ensuring the uniform speed of the tool, further improving the thread processing accuracy, and the cavity effectively protects the internal bevel gear and transmission gear, preventing metal chips from entering and causing component wear. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of one side of a metal reverse-thread nut thread processing equipment proposed in this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the other side of the metal reverse-thread nut thread processing equipment proposed in this utility model;

[0017] Figure 3 This is a top view of the positioning mechanism of a metal reverse-thread nut thread processing equipment proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the positioning base of a metal reverse-thread nut thread processing equipment proposed in this utility model.

[0019] Legend: 1. Base plate; 2. First electric cylinder; 3. Bearing plate; 4. Positioning mechanism; 5. Transmission wheel; 6. Motor and belt drive assembly; 7. Cutting tool; 8. Guide frame; 41. Second electric cylinder; 42. Positioning base; 43. Receiving hole; 44. Lifting rod; 45. Clamping block; 46. Guide groove; 47. Bevel gear; 48. Cavity; 49. Transmission gear. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a metal reverse-thread nut thread processing equipment, including a base plate 1, a first electric cylinder 2 fixedly installed on the upper surface of the base plate 1, a bearing plate 3 fixedly connected to one end of the piston rod of the first electric cylinder 2, a transmission wheel 5 rotatably installed at the corner of the bearing plate 3, a cutting tool 7 fixedly connected to the bottom of the transmission wheel 5, a positioning mechanism 4 fixedly installed on the upper surface of the base plate 1, the positioning mechanism 4 being located directly below the cutting tool 7, the positioning mechanism 4 including a second electric cylinder 41 and a positioning base 42, the positioning base 42 being fixedly installed at the end of the housing of the second electric cylinder 41, a lifting rod 44 fixedly connected to one end of the piston rod of the second electric cylinder 41, a receiving hole 43 being opened at the center of the positioning base 42, the lifting rod 44 being located inside the receiving hole 43, a clamping block 45 being slidably installed at the three equal division points of the positioning base 42, a motor and belt drive assembly 6 being fixedly installed at one end of the bearing plate 3, the belt of the motor and belt drive assembly 6 being connected to the transmission wheel 5, a guide frame 8 being fixedly installed on the upper surface of the base plate 1, the guide frame 8 being slidably connected to the bearing plate 3.

[0023] The specific settings and functions of this embodiment are described below. In use, the nut workpiece to be processed is first placed into the receiving hole 43 of the positioning base 42 in the positioning mechanism 4. At this time, the second electric cylinder 41 is activated, and its piston rod pushes the lifting rod 44 upwards inside the receiving hole 43. This, combined with the clamping blocks 45 slidably installed at the three division points of the positioning base 42, clamps and positions the workpiece, ensuring its stable position during processing. Then, the first electric cylinder 2, fixedly installed on the upper surface of the base plate 1, is activated. Its piston rod pushes the bearing plate 3 to slide downwards along the guide frame 8 fixed on the upper surface of the base plate 1, causing the transmission wheel 5, which is rotatably installed at the corner of the bearing plate 3, to descend synchronously until the tool 7, fixedly connected to the bottom of the transmission wheel 5, moves to the workpiece processing position directly below the positioning mechanism 4. Next, the motor and belt drive assembly 6, fixedly installed at one end of the bearing plate 3, is activated. Its belt drives the transmission wheel 5 to rotate, which in turn drives the tool 7 to rotate at high speed. The rotating tool 7 is used to perform reverse thread machining on the positioned workpiece. After processing, the electric cylinder 41... When the machine and belt drive assembly 6 stop working, the cutter 7 stops rotating, the piston rod of the first electric cylinder 2 drives the bearing plate 3 and the cutter 7 to rise and reset along the guide frame 8, and finally the clamping block 45 releases the space. The piston rod of the second electric cylinder 41 continues to drive the lifting rod 44 to rise, pushing the workpiece out of the positioning base 42, thus speeding up the removal of the workpiece and completing a single processing flow. The base plate 1 provides a stable installation foundation. The first electric cylinder 2 drives the bearing plate 3 to slide precisely along the guide frame 8 to ensure the accurate lifting position of the cutter 7 and avoid processing deviations. The motor and belt drive assembly 6 drives the transmission wheel 5 and the cutter 7 to rotate stably through the belt, ensuring that the speed of the cutter 7 is uniform and improving the thread processing accuracy. The lifting rod 44 driven by the second electric cylinder 41 in the positioning mechanism 4 cooperates with the clamping block 45 at the three equal division points of the positioning base 42 to firmly position workpieces of different specifications, prevent workpiece displacement during processing, and ensure processing quality. All components work together to realize the automated processing of metal reverse thread nuts, reduce manual operation, and improve processing efficiency.

[0024] Example 2: Figure 4 As shown, the positioning base 42 has a cavity 48 inside, and a bevel gear 47 is rotatably installed inside the positioning base 42. The bevel gear 47 is located inside the cavity 48, and a spiral protrusion is fixedly installed on the upper surface of the bevel gear 47. The top of the bevel gear 47 is slidably connected to the bottom of the clamping block 45. A guide groove 46 is provided at the junction of the positioning base 42 and the clamping block 45. A transmission gear 49 is meshed below the bevel gear 47 and is rotatably installed inside the positioning base 42.

[0025] The overall effect of this embodiment is that the cavity 48 inside the positioning base 42 provides installation space for the bevel gear 47 and the transmission gear 49. When one end of an Allen wrench is inserted into the transmission gear 49 and rotated, the transmission gear 49 meshes with the lower part of the bevel gear 47, causing the bevel gear 47 to rotate within the cavity 48. The spiral protrusions on the upper surface of the bevel gear 47 rotate with it. Since the top of the bevel gear 47 is slidably connected to the bottom of the clamping block 45, the spiral protrusions push the clamping block 45 to slide along the guide groove 46 at the junction of the positioning base 42 and the clamping block 45. Because the clamping block 45 is located at one of the three equal division points of the positioning base 42... The three clamping blocks 45 move synchronously towards the center or outward to clamp or release the workpiece. Through the meshing transmission of the transmission gear 49 and the bevel gear 47, and the sliding connection between the volute and the clamping block 45, the rotational motion is converted into the linear motion of the clamping block 45. The guide groove 46 ensures that the sliding direction of the clamping block 45 is accurate, so that the three clamping blocks 45 move synchronously, ensuring the centering and clamping of the workpiece and improving the positioning accuracy. The cavity 48 protects the internal gear structure from the influence of machining debris and extends the service life of the components. The overall design makes the clamping action of the positioning mechanism 4 more stable and synchronized, adaptable to workpieces of different sizes, and enhances the versatility of the equipment and the reliability of processing.

[0026] The operating method and working principle of this device are as follows: When using this metal reverse-thread nut thread processing equipment, first, place the nut workpiece to be processed into the receiving hole 43 of the positioning base 42 in the positioning mechanism 4. Then, insert one end of an Allen wrench into the rotating transmission gear 49 inside the positioning base 42 and rotate it. The transmission gear 49 drives the bevel gear 47 to rotate in the cavity 48. The spiral convex strip fixedly installed on the upper surface of the bevel gear 47 rotates with it, pushing the clamping block 45 to slide synchronously towards the center along the guide groove 46 opened at the junction of the positioning base 42 and the clamping block 45, initially clamping the workpiece in the receiving hole 43. During this process, the second electric cylinder 41 operates synchronously, and its piston rod pushes the lifting rod 44 located inside the receiving hole 43 to lift upward, cooperating with the initially clamped clamping block 45 to further firmly position the workpiece. Afterward, the first electric cylinder 2 fixedly installed on the upper surface of the base plate 1 is started, and its piston rod pushes the fixedly connected bearing plate 3 to slide down along the guide frame 8 fixedly installed on the upper surface of the base plate 1, so that... The transmission wheel 5, which is rotatably mounted at the corner of the support plate 3, descends synchronously until the tool 7, which is fixedly connected to the bottom of the transmission wheel 5, moves to the workpiece processing position directly below the positioning mechanism 4. Then, the motor and belt drive assembly 6, which is fixedly mounted at one end of the support plate 3, starts. Its belt drives the transmission wheel 5 to rotate, and the transmission wheel 5 in turn drives the tool 7 to rotate at high speed. The rotating tool 7 is used to perform reverse threading on the positioned workpiece. After the processing is completed, the motor and belt drive assembly 6 stops working, the tool 7 stops rotating, and the piston rod of the first electric cylinder 2 drives the support plate 3 and the tool 7 to rise and reset along the guide frame 8. Then, the transmission gear 49 is rotated in the opposite direction using an Allen wrench. The transmission gear 49 drives the bevel gear 47 to rotate in the opposite direction. The vortex-shaped convex strip pushes the clamping block 45 to slide outward synchronously along the guide slide groove 46 to release the workpiece. Finally, the piston rod of the second electric cylinder 41 drives the lifting rod 44 to rise in the receiving hole 43, pushing the workpiece out of the receiving hole 43. The processed workpiece is then removed, completing a complete reverse threading process for a metal nut.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A metal reverse thread nut threading machine, comprising a base plate (1), characterized in that: A first electric cylinder (2) is fixedly installed on the upper surface of the base plate (1). A bearing plate (3) is fixedly connected to one end of the piston rod of the first electric cylinder (2). A transmission wheel (5) is rotatably installed at the corner of the bearing plate (3). A cutting tool (7) is fixedly connected to the bottom of the transmission wheel (5). A positioning mechanism (4) is fixedly installed on the upper surface of the base plate (1). The positioning mechanism (4) is located directly below the cutter (7). The positioning mechanism (4) includes a second electric cylinder (41) and a positioning base (42). The positioning base (42) is fixedly installed at the end of the housing of the second electric cylinder (41). A lifting rod (44) is fixedly connected to one end of the piston rod of the second electric cylinder (41). A receiving hole (43) is opened at the center of the positioning base (42). The lifting rod (44) is located inside the receiving hole (43). A clamping block (45) is slidably installed at the three division points of the positioning base (42).

2. The metal reverse thread nut thread processing equipment according to claim 1, characterized in that: A motor and belt drive assembly (6) is fixedly installed at one end of the bearing plate (3), and the belt of the motor and belt drive assembly (6) is connected to the drive wheel (5).

3. The metal reverse thread nut thread processing equipment according to claim 1, characterized in that: A guide frame (8) is fixedly installed on the upper surface of the base plate (1), and the guide frame (8) is slidably connected to the bearing plate (3).

4. The metal reverse thread nut thread processing equipment according to claim 1, characterized in that: The positioning base (42) has a cavity (48) inside, and a bevel gear (47) is rotatably installed inside the positioning base (42). The bevel gear (47) is located inside the cavity (48), and a spiral protrusion is fixedly installed on the upper surface of the bevel gear (47).

5. The metal reverse thread nut thread processing equipment according to claim 4, characterized in that: The top of the bevel gear (47) is slidably connected to the bottom of the clamping block (45), and a guide groove (46) is provided at the junction of the positioning base (42) and the clamping block (45).

6. The metal reverse thread nut thread processing equipment according to claim 4, characterized in that: The bevel gear (47) is meshed with a transmission gear (49) below it, and the transmission gear (49) is rotatably mounted inside the positioning base (42).

Images