Feeding device for continuous machining of nuts

Abstract

The utility model discloses a nut continuous machining and feeding device which comprises an operation table, a tapping head moving up and down is arranged at the top of the operation table, and the machining and feeding device is arranged on the operation table, carries a plurality of nuts to be machined together and drives a single nut to vertically correspond to the tapping head under the action of external force. According to the machining feeding device, a plurality of to-be-machined nuts can be borne together, and the problem that at present, a single nut needs to be operated for a long period is solved. After the nuts are driven, the single nut can correspond to the tapping head, the tapping head is moved downwards after the nuts correspond to the tapping head, machining of the single nut can be conducted, namely frequent clamping operation of the single nut is not needed by driving alignment of the nuts, and the problems that due to frequent clamping of the nuts at present, the operation efficiency is low, and the machining efficiency is high can be greatly solved. And the physical burden of operators is gradually increased.

Description

Technical Field

[0001] This application relates to the field of nut processing technology, and in particular to a continuous nut processing and feeding device. Background Technology

[0002] A nut is a fastening component that is screwed onto a bolt or threaded rod. It is an essential element in all manufacturing machinery and is widely used in machine manufacturing, construction, shipbuilding, automobiles, electronic instruments, and many other fields. Nuts come in many varieties. Based on material, they can be divided into several main types, such as carbon steel, stainless steel, and non-ferrous metals (e.g., copper). Based on standards, there are also various types, including those conforming to Chinese national standards (GB), German standards (DIN), British standards (British Standards), American standards (American Standards), and Japanese standards (JP).

[0003] The nut machining process involves steps such as cold forming of the blank, tapping, heat treatment, and surface treatment. Tapping is the main step in nut forming, and the quality of the internal thread directly affects the nut's later use. Tapping is the process of machining internal threads on the nut. Currently, the machining methods for internal threads on nuts are as shown in the attached instruction manual. Fig. 1-2 As shown, the nut blank to be tapped is clamped on the chuck fixture, and then the tapping head is moved down. While rotating, it enters the nut and moves back up after penetrating the nut, thus completing the tapping operation of a single nut.

[0004] In actual machining, the chuck fixture structure is equivalent to a machine tool chuck. By inserting and rotating the drive handle into the hole on the outer wall of the chuck fixture, multiple circumferential jaws can be moved simultaneously towards or away from the center, thus achieving the clamping operation of the nut. However, in the mass production of standard nut parts, frequent clamping reduces the efficiency of mass production of nuts, increases the physical burden on operators, and consequently increases the company's production costs. Summary of the Invention

[0005] To address the aforementioned problems, this application aims to provide a continuous nut processing and feeding device, which enables continuous tapping of nuts without the need for frequent clamping of individual nuts. This greatly solves the problems of low operating efficiency and increasing physical burden on operators caused by frequent nut clamping.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a nut continuous processing feeding device, the nut processing includes an operating table, the top of which is provided with a tapping head that moves up and down, characterized in that: the processing feeding device is set on the operating table, which receives multiple nuts to be processed together, and drives a single nut to be vertically aligned with the tapping head under the action of external force.

[0007] Preferably, the feeding device comprises a U-shaped long groove fixedly arranged on the operation table, and a supporting step is arranged in the middle of the inner side wall of the groove to support the nut.

[0008] Preferably, a driving rod is hingedly arranged in the groove and extends to the outside, and a positioning plate is vertically arranged at one end of the driving rod.

[0009] Preferably, the driving rod abuts against the bottom surface of the groove in the state that the positioning plate abuts against the side wall of the nut, and the width of the nut corresponding to the tapping head at the side end of the groove is less than the radius of the nut.

[0010] The feeding device can support a plurality of nuts to be processed at the same time, and the long period of time required for the operation of a single nut can be solved. After the nut is driven, the single nut can be aligned with the tapping head, and the tapping head can be lowered to process the single nut. The frequent clamping operation of the single nut is not required, and the problems of low operation efficiency and gradually increasing physical burden of the operator can be solved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 The structure of the nut clamped by the chuck is shown.

[0012] Fig. 2 The structure of the nut clamped by the chuck is shown. Fig. 1 The structure of the nut clamped by the chuck is shown.

[0013] Fig. 3 The structure of the nut clamped by the chuck is shown.

[0014] Fig. 4 The structure of the nut clamped by the chuck is shown. Fig. 3 The structure of the nut clamped by the chuck is shown.

[0015] Fig. 5 The structure of the nut clamped by the chuck is shown.

[0016] Fig. 6 The structure of the nut clamped by the chuck is shown.

[0017] Fig. 7 The structure of the nut clamped by the chuck is shown.

[0018] Fig. 8 The structure of the nut clamped by the chuck is shown.

[0019] Fig. 9 For this application Fig. 8 The diagram shows the structure assembled inside the receiving groove.

[0020] Fig. 10 This is a diagram illustrating the positioning operation of the positioning plate in the continuous machining process of the nut according to this application.

[0021] In the diagram: 5 - Nut; 6 - Chuck clamp. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] See attached document Fig. 1-10 The diagram shows a continuous nut processing and feeding device. The nut processing includes an operating table 1, on the top of which is a tapping head 2 that moves vertically. Currently, as shown... Fig. 1-2 As shown, a single nut is clamped in a chuck fixture, and the tapping operation of a single nut is completed by moving the tapping head 2 up and down and penetrating the nut.

[0024] To address the current problem of frequent clamping of chucks during each nut tapping process, which affects machining efficiency and increases the physical burden on operators, this application includes a machining feeding device, such as... Fig. 6 As shown, the processing and feeding device is installed on the operating table 1, which receives multiple nuts to be processed together, that is, it receives several nuts to be processed as a whole, solving the long cycle that currently requires processing each nut individually. Under the action of external force, a single nut is driven to align vertically with the tapping head 2. That is, by driving the nut, a single nut can be aligned with the tapping head 2. After alignment, the tapping head 2 can be moved down to process the single nut. In other words, by driving the nut to align, the frequent clamping operation of a single nut is not required, which can greatly solve the problems of low operating efficiency and increasing physical burden on operators caused by frequent nut clamping.

[0025] Specifically, such as Fig. 3-6 As shown, the processing and feeding device includes a U-shaped long strip receiving groove 3 fixedly mounted on the operating table 1. The inner width of the receiving groove 3 is the same as the outer diameter of the nut (actually slightly larger than the outer diameter of the nut, so that the nut can be assembled into the receiving groove 3). The outer circumferential structure of the nut is usually hexagonal. Therefore, the circumferential limit of the nut can be achieved by the polygonal plane structure of its side wall adhering to the inner wall of the receiving groove 3. It can resist the rotational force of the tapping head when the tapping head passes through the nut. The circumferential rotation of the nut is limited by the receiving groove 3.

[0026] Further as Fig. 3-4As shown, a receiving step 31 is provided in the middle of the inner side wall of the receiving groove 3 to suspend and receive the nut. After the nut is received on the receiving step 31, the nut is in a suspended state, that is, the bottom surface of the nut is separated from the inner bottom surface of the receiving groove 3. This allows the tapping head 2 to pass through the nut without contacting the inner bottom surface of the receiving groove 3, so that the tapping head 2 can completely perform axial tapping on the nut.

[0027] Further as Fig. 6 As shown, the centerline of the receiving groove 3 vertically corresponds to the centerline of the tapping head 2, allowing multiple nuts to be connected as follows: Fig. 5 The nuts are arranged on the receiving step 31 of the receiving groove 3. The outermost nut is driven forward, and multiple nuts move forward synchronously as a whole, so that the foremost nut is at the bottom of the tapping head 2. Then the drive stops, and the tapping head 2 moves down to process the current nut. After processing, the outermost nut is driven forward again, and the tapped nut is disengaged from the receiving groove 3. The nuts to be processed on the back side then move forward in sequence to the processing position corresponding to the vertical position of the tapping head 2, and are processed in sequence. At the other end of the receiving groove 3, nuts can be continuously replenished for processing, realizing continuous processing of nuts. This solves the problem of frequent clamping affecting operating efficiency and gradually increasing physical burden, and effectively improves the operating efficiency of continuous nut processing.

[0028] During the aforementioned process of driving the nut forward, there are conditions such as... Fig. 7 The nut to be machined shown is misaligned with the axis of tapping head 2, affecting the smooth machining of the nut. Therefore, to solve this problem, as follows... Fig. 8-9 As shown, a drive rod 4 extending outward is hinged within the receiving groove 3. A positioning plate 41 is vertically positioned at one end of the drive rod 4, and this positioning plate 41 is in contact with the nut sidewall corresponding vertically to the tapping head 2. Fig. 10 As shown in the attached diagram, before pushing the nut forward, the end of the drive rod 4 is pressed down, causing the positioning plate 41 at the tail end of the drive rod 4 to move upward. Then, the nut is driven to slide in the receiving step 31 until it abuts against the positioning plate 41. In this abutting state, the rightmost nut aligns vertically with the tapping head 2, thus positioning the nut to be processed. Then, the tapping head 2 is moved downward to process the current nut. After processing, the outer end of the drive rod 4 is moved upward, causing the positioning plate 41 to move downward and disengage from the nut. Then, the nut is driven backward, causing the processed nut to fall from the side end of the receiving groove 3. Fig. 10 As shown in the attached diagram below, the drive rod 4 is then pressed down again, causing the positioning plate 41 to make contact with the nut being processed again, thereby effectively achieving the function of quick positioning of the nut and the tapping head 2.

[0029] To avoid the problem of inaccurate positioning of the nut by the positioning plate 41 due to excessive downward pressure of the drive rod 4, preferably, as follows: Fig. 10As shown in the middle figure, when the positioning plate 41 is in contact with the side wall of the nut, the driving rod 4 abuts against the bottom surface of the receiving groove 3 (that is, the opening of the receiving groove 3), which restricts the rotation range of the driving rod 4. In this restricted state, the positioning plate 41 can be in a vertical state (preferably the angle between the positioning plate 41 and the driving rod 4 is greater than a right angle, and it gradually becomes vertical during the circumferential rotation of the driving rod), and achieves the precise positioning function of being flush with the side wall of the nut.

[0030] Because the nuts are arranged tightly in the receiving step 31, even after the outer nut is processed, it remains tightly attached to the adjacent nut to be processed. This makes it difficult for the positioning plate 41 to be precisely positioned between the two during its upward movement, meaning it cannot achieve tight positioning for the next nut to be processed. Therefore, to solve this problem, such as... Fig. 10 As shown, the width from the nut corresponding to the tapping head 2 to the side end of the receiving groove 3 (i.e.) Fig. 10 The width at point d is less than the radius of the nut. When the outermost nut is finished and pushed towards the outside of the receiving groove 3, when the nut is pushed to the position at point d in the figure, because its width is less than the radius of the nut, more than half of the nut is suspended in the air and will fall directly under the action of gravity, thus separating from the nut to be processed on the back side. Therefore, the upward positioning plate 41 can achieve the positioning function of the nut to be processed on the back side.

[0031] The principle of this application is as follows: During continuous nut machining, the receiving groove 3 is first assembled on the operating table, with its center line aligned with the center line of the tapping head 2. Then, multiple nuts to be machined are arranged sequentially on the receiving step 31. During operation, pressing down the end of the drive rod 4 causes the positioning plate 41 at the tail end of the drive rod 4 to move upwards. The nut is then driven to slide in the receiving step 31 until it abuts against the positioning plate 41. In this abutting state, the rightmost nut is vertically aligned with the tapping head 2, thus positioning the nut to be machined. Then, moving the tapping head 2 downwards allows machining of the current nut. After machining, the outer end of the drive rod 4 is moved upwards, causing the positioning plate 41 to move downwards and disengage from the nut. The nut is then driven backwards, causing the machined nut to fall from the side of the receiving groove 3. Then, pressing down the drive rod 4 again causes the positioning plate 41 to re-engage and position the machined nut, effectively achieving rapid positioning of the nut and the tapping head 2.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this application. Various changes and modifications may be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A continuous nut processing feeding device, the nut processing includes an operating table (1), the top of which is provided with a tapping head (2) that moves up and down, characterized in that: The processing and feeding device is set on the operating table (1), which receives multiple nuts to be processed together and drives a single nut to be vertically aligned with the tapping head (2) under the action of external force; The processing and feeding device includes a U-shaped long strip receiving groove (3) fixedly mounted on the operating table (1). A receiving step (31) for suspending and receiving the nut is provided in the middle of the inner side wall of the receiving groove (3). The center line of the receiving groove (3) is vertically aligned with the center line of the tapping head (2).

2. The processing and feeding device according to claim 1, characterized in that: A drive rod (4) extending to the outside is hinged in the receiving groove (3). A positioning plate (41) is vertically provided at one end of the drive rod (4). The positioning plate (41) is in contact with the nut sidewall that is vertically corresponding to the tapping head (2).

3. The processing and feeding device according to claim 2, characterized in that: When the positioning plate (41) is in contact with the side wall of the nut, the drive rod (4) abuts against the bottom surface of the receiving groove (3), and the width from the nut corresponding to the tapping head (2) to the side end of the receiving groove (3) is less than the radius of the nut.

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