Automatic feeding thread rolling machine for screw machining

Abstract

The utility model relates to screw processing equipment technical field, concretely is a kind of automatic feeding thread rolling machine for screw processing, to solve the poor adaptability of existing equipment feeding track, adjust cumbersome, locking problem of not firm. Its technical scheme core includes thread rolling machine body, vibrating feeder tray and the feeding track of connecting both, adjusting plate is equipped in feeding track, and the mounting platform of thread rolling machine body side is equipped with telescopic device, lifting device and fixed plate;Telescopic device output end passes through the adjusting hole of feeding track and is fixed with adjusting plate, telescopic column one end fixed adjusting plate, the other end passes through feeding track guide hole and fixed plate telescopic hole. The utility model can be adapted to multi-specification screw processing without disassembling and replacing accessories, shorten specification switching time, improve locking stability and processing accuracy, reduce manual operation intensity, with the advantages of simple structure, high practicality, applicable to batch screw processing scene.

Description

Technical Field

[0001] This utility model relates to the field of screw processing equipment technology, specifically an automatic feeding and thread rolling machine for screw processing. Background Technology

[0002] As is well known, in the field of screw processing, automatic feeding thread rolling machines have been widely used in mass production scenarios because they can realize the automated feeding and thread processing of screw blanks, greatly improving production efficiency. Its core working logic is to transport the screw blanks to the thread rolling machine body in an orderly manner through the feeding mechanism, and the thread rolling machine body completes the thread forming process. The stability and adaptability of the feeding mechanism directly affect the processing accuracy and production continuity.

[0003] However, existing automatic feeding thread rolling machines still have many problems that need to be solved in practical applications:

[0004] The feeding track has poor adaptability. Most equipment has a fixed structure or uses a simple adjustment method for the feeding track, which can only be adapted to the conveying of screw blanks of a single specification. When it is necessary to process screws of different diameters and lengths, the feeding track must be disassembled and replaced with track accessories of the corresponding size. This is not only cumbersome and time-consuming, but also increases the inventory cost of spare parts, which seriously affects production efficiency.

[0005] The locking reliability after adjustment is insufficient. Some adjustable feeding tracks use simple locking methods such as bolt tightening, which have poor locking effect. Under the processing conditions of high-frequency vibration of the equipment, the adjustment parts are prone to displacement, which leads to changes in the size of the feeding channel, and in turn causes problems such as screw blank jamming and feeding displacement, affecting processing accuracy and production continuity.

[0006] The manual operation is highly intensive. The specification switching process requires multiple operators to work together to disassemble and replace parts. Moreover, the adjustment accuracy depends on human experience, which can easily lead to adjustment errors and further affect the processing quality. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the problems of poor adaptability of existing feeding tracks, cumbersome adjustments, and insecure locking, this utility model provides an automatic feeding and thread rolling machine for screw processing.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding thread rolling machine for screw processing, comprising a thread rolling machine body and a vibrating feeding plate, wherein the thread rolling machine body and the vibrating feeding plate are connected by a feeding track, wherein an adjusting plate is provided in the feeding track, and a guide hole and an adjusting hole are provided on one side of the feeding track, wherein a mounting platform is provided on one side of the thread rolling machine body, wherein a telescopic device, a lifting device and a fixing plate are provided on the mounting platform, wherein the output end of the telescopic device passes through the adjusting hole and is fixed on one side of the adjusting plate, wherein a telescopic hole is provided on the fixing plate, wherein a telescopic column is provided in the telescopic hole, wherein one end of the telescopic column passes through the guide hole and is fixed on one side of the adjusting plate, wherein a tooth groove is provided at the bottom end of the telescopic column, and a tooth block is provided at the output end of the lifting device, wherein the tooth block meshes with the tooth groove.

[0011] Furthermore, a slide bar is provided on one side of the fixing plate, and a groove is provided on one side of the toothed block, through which the slide bar passes.

[0012] Furthermore, the slide bar is made of iron, and an installation groove is provided on one side of the slide groove, in which an electromagnet is fixed.

[0013] Furthermore, both the telescopic device and the lifting device are electric push rods.

[0014] Furthermore, a limiting groove is provided at the top of the feeding track.

[0015] Furthermore, the meshing tooth surfaces of the tooth block are overlaid with a cemented carbide layer, the thickness of which is 0.5-1mm.

[0016] Furthermore, the feeding track is made of stainless steel, and the inner surface of the feeding track is mirror polished, with a surface roughness Ra≤0.8μm.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides an automatic feeding and thread rolling machine for screw processing, which has the following beneficial effects:

[0019] This automatic feeding and thread rolling machine for screw processing achieves flexible adjustment of the adjustment plate position through the coordinated operation of a telescopic device and a lifting device. The telescopic device drives the adjustment plate to extend and retract horizontally, allowing for rapid adjustment of the feeding channel width; the lifting device locks and unlocks the adjustment plate position through the engagement / disengagement of toothed blocks and the toothed grooves of the telescopic column. When changing to process screws of different diameters and lengths, there is no need to disassemble the feeding track or replace parts; adjustment can be completed simply by controlling the telescopic and lifting devices. This significantly shortens specification changeover time, reduces spare parts inventory costs, and adapts to the processing needs of multi-specification screws in mass production.

[0020] The locking mechanism employs a lifting device to engage the toothed block with the toothed groove at the bottom of the telescopic column, forming a rigid transmission locking structure. Compared to existing simple locking methods such as bolt tightening, the locking reliability is significantly improved. Under high-frequency vibration processing conditions, it can effectively prevent the adjustment plate from shifting, ensuring the consistency of the feeding channel dimensions. This reduces the occurrence of faults such as screw blank jamming and feeding deviation, improves feeding accuracy and processing stability, and ensures the continuity of the production process. Attached Figure Description

[0021] Figure 1 This is a first-view structural diagram of the present invention;

[0022] Figure 2 This utility model Figure 1 First-person view structural diagram of the mounting platform;

[0023] Figure 3 This utility model Figure 1 A schematic diagram of the second-view structure of the mounting platform;

[0024] Figure 4 This utility model Figure 1 A frontal half-sectional view of the structure of the mounting platform.

[0025] In the diagram: 1. Tooth rolling machine body; 2. Vibrating feed plate; 3. Feeding track; 4. Adjusting plate; 5. Mounting platform; 6. Telescopic device; 7. Lifting device; 8. Fixing plate; 9. Telescopic column; 10. Tooth block; 11. Sliding bar; 12. Slide groove; 13. Electromagnet; 14. Limiting groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 4This utility model relates to an automatic feeding thread rolling machine for screw processing, comprising a thread rolling machine body 1 and a vibrating feeding plate 2. The thread rolling machine body 1 and the vibrating feeding plate 2 are connected by a feeding track 3. The feeding track 3 is provided with an adjusting plate 4. A guide hole and an adjusting hole are provided on one side of the feeding track 3. A mounting platform 5 is provided on one side of the thread rolling machine body 1. The mounting platform 5 is provided with a telescopic device 6, a lifting device 7, and a fixing plate 8. The output end of the telescopic device 6 passes through the adjusting hole and is fixed to the adjusting plate 8. On one side of plate 4, the fixed plate 8 has a telescopic hole, and a telescopic column 9 is provided in the telescopic hole. One end of the telescopic column 9 passes through the guide hole and is fixed to one side of the adjusting plate 4. The bottom end of the telescopic column 9 has a toothed groove. The output end of the lifting device 7 has a toothed block 10. The toothed block 10 meshes with the toothed groove. In this embodiment, the screw blank to be processed is poured into the vibrating feeder 2. The vibrating feeder 2 uses high-frequency vibration to make the screw blank arrange in an orderly manner along its internal spiral track and transport it to the feeding end of the feeding track 3. According to the diameter, length and other specifications of the screw to be processed, adjust the position of the adjusting plate 4 in the feeding track 3 to match the width of the screw conveying channel. Start the telescopic device 6 on the mounting platform 5. Its output end moves linearly along the adjusting hole of the feeding track 3, directly driving the adjusting plate 4 to move horizontally within the feeding track 3, initially adjusting the width of the feeding channel. The adjusting plate 4 drives the telescopic column 9 to move. The telescopic column 9 moves linearly in the telescopic hole of the fixed plate 8, so that the adjusting plate 4 moves more smoothly in a linear motion. After adjusting to the specified width, start the lifting device 7. Its output end drives the toothed block 10 to move linearly. Since the toothed block 10 meshes with the tooth groove at the bottom of the telescopic column 9, the position of the telescopic column 9 is locked, thus firmly locking the position of the adjusting plate 4, which is convenient for subsequent use and reduces the impact of vibration generated during equipment operation on the position of the adjusting plate 4. The vibrating feeding plate 2 continuously conveys the screw blank along the feeding track 3 to the thread rolling machine body 1. The thread rolling machine body 1 performs thread rolling processing on the screw blank to realize the automated forming of screw threads. If processing screws of different specifications, the output end of the lifting device 7 is controlled to move the tooth block 10 away from the tooth groove, and then the position of the adjusting plate 4 can be adjusted by controlling the telescopic device 6. No disassembly of the track or replacement of parts is required, adapting to the processing needs of screws of different specifications. The thread rolling machine body 1 is a commercially available finished product, with common models including ZY-102, CY-120, and TX-150. Its core technical parameters meet industry standards: processing screw diameter range of 1-12mm, processing screw length range of 3-50mm, thread rolling processing speed of 300-600 pieces / minute, and drive motor power of 1.5-3kW. The specific structure (such as the thread rolling wheel set, transmission mechanism, control system, etc.) and internal working principle of the thread rolling machine body 1 are existing technologies and will not be described in detail here.

[0028] In this design, a slide bar 11 is provided on one side of the fixing plate 8, and a groove 12 is provided on one side of the toothed block 10. The slide bar 11 passes through the groove 12, and the slide bar 11 on the fixing plate 8 enters the groove 12 of the toothed block 10, forming a linear sliding guide pair. This restricts the degree of freedom of movement of the toothed block 10, allowing it to move linearly only along the extension direction (lifting direction) of the slide bar 11, preventing lateral offset or rotation. This avoids the toothed block 10 from shifting during lifting and lowering movements, ensuring the meshing accuracy between the toothed block 10 and the bottom tooth groove of the telescopic column 9, and preventing tooth misalignment and tooth dislodgement.

[0029] In this design, the slide bar 11 is made of iron, and an installation groove is provided on one side of the slide groove 12. An electromagnet 13 is fixed in the installation groove. When the electromagnet 13 is energized, it generates a magnetic field that attracts the iron slide bar 11, causing the toothed block 10 to fit tightly and be relatively fixed to the slide bar 11. When the power is off, the magnetic field disappears, and the toothed block 10 can slide normally along the slide bar 11. After the adjusting plate 4 completes the lifting and positioning, it is energized to attract the slide bar 11, which can lock the position of the toothed block 10, preventing the toothed block 10 from loosening and the adjusting plate 4 from shifting due to equipment vibration during processing, thus ensuring the stability of the feeding channel size. The power-on / off control lock / unlock is convenient to operate, requiring no additional mechanical locking structure and simplifying the operation process. The electromagnet 13 has a uniform attraction force and will not cause mechanical damage to the slide bar 11 / toothed block 10, balancing locking reliability and component life. The electromagnet 13 is an MFZ1-3.5 type DC electromagnet with the following key parameters: rated voltage DC24V, rated current 1.5A, rated suction force 35N, response time ≤0.1s, service life ≥1 million times, and lead wire length 500mm to meet the internal wiring requirements of the equipment.

[0030] In this design, both the telescopic device 6 and the lifting device 7 are electric push rods. These electric push rods are driven by a motor-driven lead screw and nut pair, converting the motor's rotational motion into linear telescopic motion at the output end. The telescopic stroke can be precisely controlled by the forward and reverse rotation of the motor, and they possess a self-locking characteristic (the output end remains in a fixed position after power failure). Compared to pneumatic cylinders and hydraulic cylinders, electric push rods offer higher adjustment precision (stroke control precision up to 0.1mm), accurately matching the channel size requirements of screws of different specifications. Specifically, the DTZ300 industrial-grade electric push rod is selected, with key parameters as follows: telescopic stroke 50-200mm (customizable according to feeding track specifications), rated thrust 3000N, rated tension 2500N, rated speed 10-30mm / s (adjustable via the control system), duty cycle 100% (S1, supporting continuous operation), motor power 120W, and protection rating IP65, suitable for dusty and slightly oily environments in screw processing workshops. Its control method is linked to the control system of the thread rolling machine body 1, supporting manual / automatic dual-mode adjustment.

[0031] In this design, a limiting groove 14 is provided at the top of the feeding track 3. The limiting groove 14 at the top of the feeding track 3 is adapted to the shape characteristics of the screw (e.g., the screw head diameter is larger than the shank diameter, so the limiting groove 14 can engage the screw head; or the width of the limiting groove 14 is adapted to the diameter of the screw shank diameter), thus forming an axial / radial limit on the screw and restricting its posture during the conveying process. This prevents the screw from tipping over, tilting, or shifting during vibration conveying, ensuring that the screw is always conveyed along the track in a uniform posture, improving the orderliness of the feeding, preventing the screw from coming off the top of the track, and reducing the risk of jamming and leakage.

[0032] In this design, the meshing tooth surfaces of the tooth block 10 are overlaid with a cemented carbide layer, the thickness of which is 0.5-1 mm. Cemented carbide (such as tungsten-cobalt alloy) has high hardness (HRA≥85) and excellent wear resistance. Overlaying a 0.5-1 mm thick cemented carbide layer on the meshing tooth surfaces of the tooth block 10 significantly improves the wear resistance and impact resistance of the tooth surface. This solves the problem of tooth surface wear and deformation caused by long-term meshing transmission of the tooth block 10, extending its service life.

[0033] In this design, the feeding track 3 is made of stainless steel, and its inner surface is mirror-polished with a surface roughness Ra≤0.8μm. Stainless steel is corrosion-resistant, high-strength, and not easily deformed, making it suitable for applications involving cutting fluid and metal shavings during screw processing. The mirror polishing process reduces the surface roughness Ra to ≤0.8μm, significantly lowering the coefficient of friction. The track is less prone to rust and deformation, extending its service life and making it suitable for humid and debris-rich processing environments.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding and thread rolling machine for screw processing, characterized in that, The machine includes a tooth rolling machine body (1) and a vibrating feed plate (2). The tooth rolling machine body (1) and the vibrating feed plate (2) are connected by a feeding track (3). An adjusting plate (4) is provided in the feeding track (3). A guide hole and an adjusting hole are provided on one side of the feeding track (3). A mounting platform (5) is provided on one side of the tooth rolling machine body (1). A telescopic device (6), a lifting device (7) and a fixing plate (8) are provided on the mounting platform (5). The output end of the telescopic device (6) passes through the adjusting hole and is fixed on one side of the adjusting plate (4). A telescopic hole is provided on the fixing plate (8). A telescopic column (9) is provided in the telescopic hole. One end of the telescopic column (9) passes through the guide hole and is fixed on one side of the adjusting plate (4). A tooth groove is provided at the bottom end of the telescopic column (9). A tooth block (10) is provided at the output end of the lifting device (7). The tooth block (10) meshes with the tooth groove.

2. The automatic feeding and thread rolling machine for screw processing according to claim 1, characterized in that, The fixed plate (8) has a slide bar (11) on one side, and the toothed block (10) has a groove (12) on one side, through which the slide bar (11) passes.

3. An automatic feeding and thread rolling machine for screw processing according to claim 2, characterized in that, The slide bar (11) is made of iron, and an installation groove is provided on one side of the slide groove (12), in which an electromagnet (13) is fixed.

4. An automatic feeding and thread rolling machine for screw processing according to claim 1, characterized in that, Both the telescopic device (6) and the lifting device (7) are electric push rods.

5. An automatic feeding and thread rolling machine for screw processing according to claim 1, characterized in that, A limiting groove (14) is provided at the top of the feeding track (3).

6. An automatic feeding and thread rolling machine for screw processing according to claim 1, characterized in that, The meshing tooth surface of the tooth block (10) is overlaid with a hard alloy layer, the thickness of which is 0.5-1mm.

7. An automatic feeding and thread rolling machine for screw processing according to claim 1, characterized in that, The feeding track (3) is made of stainless steel, and the inner surface of the feeding track (3) is mirror polished, with a surface roughness Ra≤0.8μm.

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