Automatic machining device for M4 screw

Abstract

The utility model provides an automatic machining device for an M4 screw. The automatic machining device comprises a cabinet body, a positioning seat, a cutting-off assembly, a discharging assembly and a thread rolling assembly. According to the device, precise cutting of the steel wire is achieved through the cutting assembly, the discharging assembly guides a cut blank into the thread rolling assembly, and thread machining is completed through the thread rolling assembly. Automatic operation is achieved in the whole machining process, and production efficiency and machining quality are improved. The device is compact in structure, easy and convenient to operate, suitable for large-scale production of M4 screws and capable of being adjusted and optimized according to requirements so as to meet the machining requirements of different specifications and materials.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an M4 screw automatic processing device. Background Art

[0002] In the field of mechanical processing, the processing of M4 screws usually involves multiple steps, including cutting, feeding and thread rolling. Traditional processing methods are mostly manual operations, which are not only inefficient but also difficult to ensure processing quality.

[0003] The patent with application number CN201721925262.4 provides a screw processing equipment, which relates to the technical field of machining equipment. The screw processing equipment includes a tool, a rotary chuck and a track platform. The tool is arranged above the rotary chuck and the track platform, and the rotary chuck translates along the track platform; the rotary chuck includes a chuck and a rotary drive device, and the rotary drive device drives the chuck to rotate; the workpiece is clamped on the chuck, and the rotary drive device drives the workpiece to rotate; the movement of the tool includes movement along the Z axis and rotation around the Z axis; when the workpiece rotates, the tool processes the surface of the workpiece.

[0004] However, the above patented technology has the problems of complex processing procedures and low processing efficiency, and does not solve the technical problems existing in the prior art. Therefore, developing a device that can automatically complete the entire process of M4 screw processing is of great significance for improving production efficiency and processing quality. Utility Model Content

[0005] The purpose of the utility model is to provide an M4 screw automatic processing device to solve the problems raised in the above background technology:

[0006] (1) How to use a single device to automatically complete the M4 screw cutting, feeding and thread rolling processing steps to improve production efficiency and processing quality.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An M4 screw automatic processing device;

[0009] It includes a cabinet, a positioning seat, a cutting assembly, a blanking assembly and a thread rolling assembly;

[0010] The positioning seat is fixedly connected to the front end face of the cabinet, and the positioning seat is provided with a feed hole which passes through the front and rear end faces, and the upper end face of the positioning seat is provided with a cutting groove which communicates with the middle of the feed hole, and the lower end face of the positioning seat is provided with a feed groove which communicates with the feed hole behind the cutting groove;

[0011] The cutting assembly includes a first rotating shaft, a first cam, a cutting knife, a first slide rail, a first fixed plate, a plurality of first guide rods and a plurality of first springs. The first slide rail and the first fixed plate are fixedly connected to the front end surface of the cabinet. The cutting knife cooperates with the first slide rail. The moving trajectory of the cutting knife passes through the cutting groove of the positioning seat. The lower end of the cutting knife is provided with a cutting edge for cutting the steel wire corresponding to the cutting groove. The first fixed plate is provided with a plurality of guide holes corresponding to the plurality of first guide rods. The axial direction of the guide holes is consistent with the direction of the first slide rail. One end of the first guide rod is fixedly connected to the cutting knife. The other end of the first guide rod passes through the first fixed plate and is fixedly connected to the baffle. The plurality of first springs correspond to the plurality of first guide rods one by one. The first spring is sleeved on the outer wall of the corresponding first guide rod. The two ends of the first spring respectively abut against the first fixed plate and the baffle. The first rotating shaft is supported on the cabinet. The first cam is mounted on the first rotating shaft. The side wall of the first cam abuts against the side wall of the cutting knife.

[0012] The material discharge assembly includes a material discharge seat, and a material discharge channel is provided inside the material discharge seat for only M4 screw blanks to pass through, and the upper end of the material discharge channel is communicated with the material discharge trough of the positioning seat;

[0013] The thread rolling assembly includes a static plate, a dynamic plate, a driving machine, a crank slider mechanism and a running track. The static plate and the running track are fixedly connected to the front end surface of the cabinet. The dynamic plate cooperates with the running track. A thread rolling channel is formed between the dynamic plate and the static plate. The upper end of the thread rolling channel is connected to the lower end of the feeding channel of the feeding assembly. The thread rolling channel is connected to the lower end of the guide hole of the guide seat. The driving machine drives the dynamic plate to reciprocate on the running track through the crank slider mechanism.

[0014] On the basis of the above technical solution, the present invention can also be improved as follows.

[0015] Further, a straightening assembly is included, the straightening assembly including a horizontal plate, a vertical plate, six horizontal straightening wheels and six vertical straightening wheels;

[0016] The horizontal plate is welded and fixed to the vertical plate, and the vertical plate is fixed to the front side of the cabinet. Six horizontal straightening wheels are installed on the horizontal plate in groups of two, and a gap is left between the two horizontal straightening wheels in each group for the steel wire to pass through. Six vertical straightening wheels are also installed on the vertical plate in groups of two, and a gap is left between the two vertical straightening wheels in each group for the steel wire to pass through.

[0017] The gaps between the three groups of horizontal straightening wheels and the gaps between the three groups of vertical straightening wheels are arranged in a straight line in sequence to form a straightening channel for the straightening wire.

[0018] The straightening channel and the feed hole are arranged in sequence, the center line of the straightening channel and the center line of the feed hole are collinear, and the end of the straightening channel is aligned with the beginning of the feed hole.

[0019] Furthermore, the movable plate of the thread rolling assembly is provided with a ridge that can form a groove on the side wall of the M4 screw blank.

[0020] Furthermore, it also includes a motor and a transmission mechanism, and the output shaft of the motor drives the first rotating shaft of the cutting component through the transmission mechanism.

[0021] The cutting assembly is a key part of the M4 screw automatic processing device, responsible for cutting the steel wire into M4 screw blanks of appropriate length. When the steel wire enters the device through the feed hole of the positioning seat, the first shaft drives the first cam to rotate. As the first cam rotates, its side wall pushes the cutting knife to reciprocate along the first slide rail. The lower edge of the cutting knife cooperates with the cutting groove of the positioning seat. When the cutting knife moves downward, the cutting edge will cut the steel wire in the cutting groove to form an M4 screw blank.

[0022] The first spring plays a key role in the cutting process. When the cutting knife is pushed downward by the first cam, the first spring is compressed; when the first cam continues to rotate and leaves the cutting knife, the reset force of the first spring pushes the cutting knife back to its original position to prepare for the next cutting operation. This structural design not only ensures the rapid reset of the cutting knife, but also ensures the stability and reliability of the cutting operation.

[0023] The feeding assembly is mainly responsible for guiding the cut M4 screw blank from the cutting groove to the thread rolling assembly. When the steel wire is cut, the M4 screw blank will fall into the feeding trough of the positioning seat. The feeding trough is connected to the feeding channel inside the feeding seat. The size and shape of the feeding channel are precisely designed to only allow the M4 screw blank to pass through. In this way, the M4 screw blank can smoothly enter the feeding channel from the feeding trough and finally reach the thread rolling assembly.

[0024] The thread rolling assembly is the last link in the M4 screw automatic processing device, which is responsible for rolling the M4 screw blank into an M4 screw with standard threads. When the M4 screw blank enters the thread rolling channel, the driver starts to work, and drives the moving plate to move back and forth on the running track through the crank slider mechanism. The relative movement between the moving plate and the static plate will roll the M4 screw blank, so that its surface forms a thread that meets the standard.

[0025] The size and shape of the thread rolling channel are precisely designed to match the thread specifications of the M4 screw. At the same time, the motion parameters of the drive motor and the crank slider mechanism are also carefully adjusted to ensure the stability and consistency of the thread rolling process. In this way, the M4 screw processed by the thread rolling assembly can achieve the expected thread accuracy and surface quality.

[0026] The M4 screw automatic processing device of the utility model can automatically complete the processing steps of cutting, feeding and thread rolling of the M4 screw through the coordinated work of the cutting component, the feeding component and the thread rolling component, thereby improving the production efficiency and processing quality. At the same time, the device has a compact structure, is easy to operate, and has good practicality and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a right view of the embodiment of the M4 screw automatic processing device.

[0028] Figure 2 It is the front view of the embodiment of the M4 screw automatic processing device (the straightening component is omitted in the figure).

[0029] Figure 3 It is a sectional view of the right side view of the positioning seat and the cutting assembly in the embodiment of the M4 screw automatic processing device.

[0030] Figure 4 The front view of the moving plate in the embodiment of the M4 screw automatic processing device.

[0031] Description of the numbers in the figure:

[0032] Cabinet body-100; positioning seat-200; feeding hole-210; cutting groove-220; unloading chute-230; first rotating shaft-310; first cam-320; cutting knife-330; first slide rail-340; first fixed plate-350; first guide rod-360; first spring-370; baffle-380; unloading seat-410; static plate-510; dynamic plate-520; convex ridge-521; driving machine-530; crank slider mechanism-540; running track-550; thread rolling channel-560; horizontal plate-610; vertical plate-620; horizontal straightening wheel-630; vertical straightening wheel-640. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0034] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] See also Figures 1 to 4 .

[0037] The M4 screw automatic processing device comprises a cabinet 100, a positioning seat 200, a cutting assembly, a blanking assembly, a straightening assembly, a thread rolling assembly, a motor and a transmission mechanism.

[0038] The positioning seat 200 is welded and fixed to the front end surface of the cabinet 100. The positioning seat 200 is provided with a feed hole 210 that passes through the front and rear end surfaces. The upper end surface of the positioning seat 200 is provided with a cutting groove 220 that communicates with the middle of the feed hole 210. The lower end surface of the positioning seat 200 is provided with a feed groove 230 that communicates with the feed hole 210 behind the cutting groove 220.

[0039] The cutting assembly includes a first rotating shaft 310, a first cam 320, a cutting knife 330, a first slide rail 340, a first fixing plate 350, two first guide rods 360 and two first springs 370. The first slide rail 340 and the first fixing plate 350 are welded and fixed to the front end surface of the cabinet 100. The cutting knife 330 cooperates with the first slide rail 340. The moving track of the cutting knife 330 passes through the cutting groove 220 of the positioning seat 200. The lower end of the cutting knife 330 is provided with a cutting edge that can cut the steel wire corresponding to the cutting groove 220. The first fixing plate 350 has two guide holes corresponding to the two first guide rods 360. The axial direction of the guide holes is aligned with the first slide rail. 340, one end of the first guide rod 360 is welded and fixed on the cutting knife 330, the other end of the first guide rod 360 passes through the first fixing plate 350 and is welded and fixed to the blocking piece 380, two first springs 370 correspond to the two first guide rods 360 one by one, the first springs 370 are sleeved on the outer walls of the corresponding first guide rods 360, the two ends of the first springs 370 are respectively against the first fixing plate 350 and the blocking piece 380, the first rotating shaft 310 is supported on the cabinet 100, the first cam 320 is installed on the first rotating shaft 310, and the side wall of the first cam 320 is against the side wall of the cutting knife 330;

[0040] The material discharge assembly includes a material discharge seat 410, and a material discharge channel is provided inside the material discharge seat 410 for only passing the M4 screw blank, and the upper end of the material discharge channel is communicated with the material discharge trough 230 of the positioning seat 200;

[0041] The thread rolling assembly includes a static plate 510, a dynamic plate 520, a driving machine 530, a crank slider mechanism 540 and a running track 550. The static plate 510 and the running track 550 are welded and fixed on the front end surface of the cabinet 100. The dynamic plate 520 cooperates with the running track 550. A thread rolling channel 560 is formed between the dynamic plate 520 and the static plate 510. The upper end of the thread rolling channel 560 is communicated with the lower end of the feeding channel of the feeding assembly. The thread rolling channel 560 is communicated with the lower end of the guide hole of the guide seat. The driving machine 530 drives the dynamic plate 520 to reciprocate on the running track 550 through the crank slider mechanism 540. The dynamic plate 520 is provided with a convex ridge 521 that can form a groove on the side wall of the M4 screw blank.

[0042] The straightening assembly includes a horizontal plate 610 , a vertical plate 620 , six horizontal straightening wheels 630 , and six vertical straightening wheels 640 .

[0043] The horizontal plate 610 is welded and fixed to the vertical plate 620, and the vertical plate 620 is fixed to the front side of the cabinet 100. Six horizontal straightening wheels 630 are installed on the horizontal plate 610 in groups of two, and a gap is left between the two horizontal straightening wheels 630 in each group for the steel wire to pass through. Six vertical straightening wheels 640 are also installed on the vertical plate 620 in groups of two, and a gap is left between the two vertical straightening wheels 640 in each group for the steel wire to pass through.

[0044] The gaps between the three groups of horizontal straightening wheels 630 and the gaps between the three groups of vertical straightening wheels 640 are arranged in a straight line in sequence to form a straightening channel for the straightening wire.

[0045] The straightening channel and the feed hole 210 are arranged in sequence, the center line of the straightening channel and the center line of the feed hole 210 are collinear, and the end of the straightening channel is aligned with the beginning of the feed hole 210 .

[0046] A motor (not shown in the figure) is installed in the cabinet 100, and the output shaft of the motor drives the first rotating shaft 310 of the cutting assembly through a gear transmission mechanism.

[0047] When in use, the steel wire enters the device through the feed hole 210 of the positioning seat 200; the cutting assembly cuts the steel wire into M4 screw blanks; the unloading assembly guides the M4 screw blanks into the thread rolling assembly; the thread rolling assembly performs thread rolling on the M4 screw blanks; the M4 screw that has completed thread rolling is guided out of the device through the guide hole of the guide seat. The entire process realizes automated operation, greatly improving production efficiency and processing quality.

[0048] The above is only one embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. An M4 screw automatic processing device, characterized by: It comprises a cabinet (100), a positioning seat (200), a cutting assembly, a blanking assembly and a thread rolling assembly; The positioning seat (200) is fixedly connected to the front end surface of the cabinet (100), and the positioning seat (200) is provided with a feed hole (210) penetrating the front and rear end surfaces thereof; the upper end surface of the positioning seat (200) is provided with a cutting groove (220), and the cutting groove (220) is communicated with the middle part of the feed hole (210); the lower end surface of the positioning seat (200) is provided with a feed groove (230), and the feed groove (230) is communicated with the feed hole (210) at the rear side of the cutting groove (220); The cutting assembly comprises a first rotating shaft (310), a first cam (320), a cutting knife (330), a first slide rail (340), a first fixing plate (350), a plurality of first guide rods (360) and a plurality of first springs (370). The first slide rail (340) and the first fixing plate (350) are fixedly connected to the front end surface of the cabinet (100). The cutting knife (330) cooperates with the first slide rail (340). The moving track of the cutting knife (330) passes through the cutting groove (220) of the positioning seat (200). The lower end of the cutting knife (330) is provided with a cutting edge capable of cutting the steel wire corresponding to the cutting groove (220). The first fixing plate (350) is provided with a plurality of guide holes corresponding to the plurality of first guide rods (360). The axial direction of the guide holes is aligned with the first slide rail. (340), one end of the first guide rod (360) is fixedly connected to the cutting knife (330), the other end of the first guide rod (360) passes through the first fixing plate (350) and is fixedly connected to the blocking plate (380), a plurality of first springs (370) correspond to the plurality of first guide rods (360) one by one, the first springs (370) are sleeved on the outer walls of the corresponding first guide rods (360), the two ends of the first springs (370) respectively abut against the first fixing plate (350) and the blocking plate (380), the first rotating shaft (310) is supported on the cabinet (100), the first cam (320) is installed on the first rotating shaft (310), and the side wall of the first cam (320) abuts against the side wall of the cutting knife (330); The material discharge assembly comprises a material discharge seat (410), wherein a material discharge channel is provided inside the material discharge seat (410) for only passing the M4 screw blank, and the upper end of the material discharge channel is communicated with the material discharge trough (230) of the positioning seat (200); The thread rolling assembly comprises a stationary plate (510), a movable plate (520), a driving machine (530), a crank slider mechanism (540) and a running track (550); the stationary plate (510) and the running track (550) are fixedly connected to the front end surface of the cabinet (100); the movable plate (520) cooperates with the running track (550); a thread rolling channel (560) is formed between the movable plate (520) and the stationary plate (510); the upper end of the thread rolling channel (560) is communicated with the lower end of the material discharge channel of the material discharge assembly; the thread rolling channel (560) is communicated with the lower end of the material guide hole of the material guide seat; the driving machine (530) drives the movable plate (520) to move back and forth on the running track (550) through the crank slider mechanism (540).

2. The M4 screw automatic processing device according to claim 1 is characterized in that: Also included is a straightening assembly, the straightening assembly including a horizontal plate (610), a vertical plate (620), six horizontal straightening wheels (630) and six vertical straightening wheels (640); The horizontal plate (610) and the vertical plate (620) are welded and fixed, and the vertical plate (620) is fixed on the front side of the cabinet (100). Six horizontal straightening wheels (630) are installed on the horizontal plate (610) in groups of two, and a gap is left between the two horizontal straightening wheels (630) in each group for the steel wire to pass through. Six vertical straightening wheels (640) are also installed on the vertical plate (620) in groups of two, and a gap is left between the two vertical straightening wheels (640) in each group for the steel wire to pass through. The gaps between the three groups of horizontal straightening wheels (630) and the gaps between the three groups of vertical straightening wheels (640) are arranged in a straight line to form a straightening channel for the straightening wire; The straightening channel and the feed hole (210) are arranged in sequence, the center line of the straightening channel and the center line of the feed hole (210) are collinear, and the end of the straightening channel is aligned with the beginning of the feed hole (210).

3. The M4 screw automatic processing device according to claim 1 is characterized in that: The movable plate (520) of the thread rolling assembly is provided with a convex ridge (521) capable of forming a groove on the side wall of the M4 screw blank.

4. The M4 screw automatic processing device according to claim 1 is characterized in that: It also includes a motor and a transmission mechanism, wherein the output shaft of the motor drives the first rotating shaft (310) of the cutting component through the transmission mechanism.

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