Thread rolling machine

Abstract

The invention discloses a thread rolling machine, and relates to the technical field of thread rolling equipment, the thread rolling machine comprises a base, a thread rolling body is arranged at the top of the base, a pushing mechanism for automatically pushing workpieces to a thread rolling position for butt joint is arranged at the top of the base, and a supply mechanism for continuously conveying the workpieces to the thread rolling position is further arranged at the top of the base; the pushing mechanism comprises first mounting plates which are symmetrically connected to the top of the base in a sliding mode, rolling wheels are fixedly connected to the tops of the first mounting plates, a mounting rod is fixedly connected to the top of one of the first mounting plates, and a first connecting rod is rotationally connected to the outer portion of the mounting rod. The workpiece is pushed between the thread rolling bodies through rotation of the first connecting rod, accurate control over the position of the workpiece can be achieved through the connecting rod mechanism, it is guaranteed that the workpiece accurately enters a machining area between the thread rolling bodies, and the position consistency of the workpiece pushed every time is guaranteed through high repeatability of the connecting rod mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of thread rolling equipment, in particular to a thread rolling machine. Background Art

[0002] A thread rolling machine is a device specially used to form threads on workpieces made of materials such as metal or plastic. It is widely used in many fields such as machinery manufacturing, automotive parts, aerospace, and household appliances. The basic working principle of a thread rolling machine is to use one or more pairs of rollers with thread shapes (also called hobs) to apply a certain pressure on the surface of the workpiece and rotate at the same time to plastically deform the workpiece material, thereby forming the required threads on the workpiece surface.

[0003] Thread rolling machines are generally divided into three-axis thread rolling machines and two-axis thread rolling machines. Two-axis thread rolling machines are suitable for processing threads on solid bars. Two rolling dies are installed on two parallel axes, and threads are formed by rotating and extruding the workpiece. When using a two-axis thread rolling machine, workers are often required to hold the workpiece and insert it into the processing wheel for processing. Each time the workpiece is placed in the thread rolling area, there may be errors in the placement position, resulting in errors in the processing.

[0004] Therefore, the present invention proposes a thread rolling machine to make up for and improve the deficiencies of the prior art. Summary of the invention

[0005] In view of the above problems, the invention provides a thread rolling machine, which can effectively solve the problem of large errors in workpiece processing in the prior art. In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions: The present invention discloses a thread rolling machine, comprising a base, a thread rolling body is arranged on the top of the base, a pushing mechanism for automatically pushing a workpiece to a thread rolling position for docking is arranged on the top of the base, and a supply mechanism for continuously conveying the workpiece to the thread rolling position is also arranged on the top of the base; The pushing mechanism includes a first mounting plate symmetrically and slidably connected to the top of the base, and rollers are fixedly connected to the top of the first mounting plates. A mounting rod is fixedly connected to the top of one of the first mounting plates, and a first connecting rod is rotatably connected to the outside of the mounting rod, and a second connecting rod is fixedly connected to one end of the first connecting rod. The pushing mechanism also includes a downward pressing mechanism to prevent the workpiece from deviating, and the pushing mechanism also includes a surface treatment mechanism for cleaning workpiece residues.

[0006] Furthermore, the pushing mechanism also includes an articulated seat rotatably connected to the first connecting rod away from one end of the first connecting rod, the articulated seat is horizontally threadedly connected to a screw rod, one end of the screw rod is fixedly connected to a resistance plate, and the other end of the screw rod is fixedly connected to a knob.

[0007] Furthermore, the supply mechanism includes an L-shaped bracket fixedly connected to the top of the first mounting plate, a material storage box is fixedly connected to the side of the L-shaped bracket, a discharge port is provided at the bottom of the side of the material storage box close to the roller, and a material discharging groove is provided on the side of the material storage box away from the roller and at the bottom of the material storage box.

[0008] Furthermore, a first movable plate is slidably connected to the top of the first mounting plate, a rotating rod is rotatably connected to the top of the first movable plate, a first shifting rod is fixedly connected to the outside of the rotating rod, a second shifting rod is fixedly connected to one end of the first shifting rod near the rotating rod, a first hydraulic cylinder is fixedly connected to the top of the first mounting plate, and an output end of the first hydraulic cylinder is fixedly connected to the first movable plate.

[0009] Furthermore, the pressing mechanism includes a guide rod vertically fixedly connected to the top of the first mounting plate, the guide rod is slidably connected to the outside of the second movable plate, the second movable plate is fixedly connected to the bottom of the second movable plate, the guide rod at the top of the second movable plate is sleeved with a first spring, one end of the first spring is fixedly connected to the second movable plate, and the other end of the first spring is fixedly connected to the protrusion on the top of the guide rod.

[0010] Furthermore, the pressing mechanism also includes an L-shaped rod fixedly connected to the side of the first movable plate, a triangular block is fixedly connected to the top of the vertical section of the L-shaped rod, and the horizontal section of the L-shaped rod is rotatably connected to the end of the second connecting rod away from the first connecting rod through a connecting rod.

[0011] Furthermore, the surface treatment mechanism includes a second mounting plate fixedly connected to the top of the first mounting plate, a rotating ring is rotatably connected to the middle of the second mounting plate, a circular brush plate is fixedly connected inside the rotating ring, a driven wheel is coaxially fixedly connected to the side of the rotating ring close to the rolling body, and a driving wheel is fixedly connected to the extended end of the rotating axis of the rolling body.

[0012] Furthermore, the surface treatment mechanism includes a limiting mechanism arranged inside the rotating ring, the limiting mechanism includes a mounting ring rotatably connected to the side of the second mounting plate, the side of the second mounting plate is rotatably connected to multiple rotating plates, each of the rotating plates is provided with a slide groove in the middle, each of the slide grooves is slidably connected to a limiting rod, the limiting rod is fixedly connected to the side of the mounting ring, one end of the rotating plate is rotatably connected to an extrusion wheel, the side of the second mounting plate is also fixedly connected to a second hydraulic cylinder, and the output end of the second hydraulic cylinder is rotatably connected to the mounting ring.

[0013] Furthermore, a lifting mechanism for adjusting the height of the workpiece is arranged between the base and the first mounting plate, and the lifting mechanism comprises a rotating rod horizontally penetrating the base, and positive threads and negative threads are alternately provided on the outside of the rotating rod.

[0014] Furthermore, the outside of the positive thread and the negative thread are both threadedly connected to a moving seat, the top of each moving seat is rotatably connected to a support rod, the middle parts of the two support rods are rotatably connected by a rotating axis, and the ends of the two support rods away from the moving seat are rollingly connected to the bottom of the first mounting plate.

[0015] Beneficial effects: The device is provided with a pushing mechanism, which utilizes the rotation of the first connecting rod to push the workpiece between the rolling bodies. The connecting rod mechanism can achieve precise control of the position of the workpiece to ensure that the workpiece accurately enters the processing area between the rolling bodies. The high repeatability of the connecting rod mechanism is utilized to ensure the consistency of the position of the workpiece each time it is pushed.

[0016] The device is provided with a supply mechanism, and utilizes the first movable plate to continuously transport the workpieces in the storage box to the pushing mechanism. Through the continuous transportation of the first movable plate, an uninterrupted feeding process can be achieved. Each time the workpiece is transported to the pushing mechanism, the pushing mechanism is used to push the workpiece between the rolling bodies. The number and position of the workpieces transported each time can be controlled to ensure that each workpiece can accurately reach the rolling body.

[0017] The device is provided with a pressing mechanism. After the workpiece is conveyed to the pushing mechanism, the second movable plate presses the workpiece downward, thereby ensuring that the workpiece remains stable and does not deviate when being pushed toward the thread rolling body, thereby ensuring the workpiece is in the correct position between the thread rolling bodies. At the same time, the second movable plate can also prevent the workpiece from being ejected due to excessive force during processing.

[0018] The device is provided with a surface treatment mechanism. When the workpiece is pushed toward the thread rolling body, the workpiece surface contacts the brush plate. The brush plate can effectively remove impurities such as metal chips on the workpiece surface to ensure that the workpiece surface is clean. The clean surface helps to improve the processing quality during the thread rolling process and reduce thread defects or surface damage caused by impurities.

[0019] The device is provided with a lifting mechanism. When processing workpieces of different specifications, the lifting mechanism can be used to adjust the workpiece and the rolling thread to be at the same height, so that the workpiece can enter the rolling thread body horizontally. The lifting mechanism enables the device to process workpieces of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1It is a three-dimensional structural diagram of the present invention from a first viewing angle.

[0022] Figure 2 It is a three-dimensional structural diagram of the present invention from a second viewing angle.

[0023] Figure 3 It is a schematic diagram of the positions of the material storage box and the roller of the present invention.

[0024] Figure 4 For the present invention Figure 3 A magnified view of the structure at center.

[0025] Figure 5 It is a three-dimensional structural diagram of the supply mechanism in the present invention.

[0026] Figure 6 It is a three-dimensional structural diagram of the material storage box and the L-shaped bracket in the present invention.

[0027] Figure 7 It is a three-dimensional structural diagram of the material pushing mechanism in the present invention.

[0028] Figure 8 It is a three-dimensional structural diagram of the surface treatment mechanism in the present invention.

[0029] Fig. 9 It is a longitudinal cross-sectional view of the rotating ring in the present invention.

[0030] Fig.10 It is a longitudinal sectional view of the lifting mechanism in the present invention.

[0031] The numbers in the figure represent: 10, base; 20, rolling body; 30, pushing mechanism; 301, first mounting plate; 302, roller; 303, mounting rod; 304, first connecting rod; 305, second connecting rod; 306, hinge seat; 307, screw; 308, contact plate; 309, knob; 40, supply mechanism; 401, L-shaped bracket; 402, material storage box; 403, discharge port; 404, material trough; 405, first moving plate; 406, rotating rod; 407, first lever; 408, second lever; 409, first hydraulic cylinder; 50, pressing mechanism ;501, guide rod; 502, second movable plate; 503, first spring; 504, L-shaped rod; 505, triangular block; 60, surface treatment mechanism; 601, second mounting plate; 602, rotating ring; 603, driven wheel; 604, driving wheel; 605, brush plate; 70, limiting mechanism; 701, mounting ring; 702, rotating plate; 703, limiting rod; 704, slide groove; 705, extrusion wheel; 706, second hydraulic cylinder; 80, lifting mechanism; 801, rotating rod; 802, positive thread; 803, negative thread; 804, movable seat; 805, support rod. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention will be further described below in conjunction with the embodiments.

[0034] See also Figures 1 to 10 A thread rolling machine of this embodiment includes a base 10, a thread rolling body 20 is arranged on the top of the base 10, a pushing mechanism 30 for automatically pushing the workpiece to the thread rolling position for docking is arranged on the top of the base 10, and a supply mechanism 40 for continuously conveying the workpiece to the thread rolling position is also arranged on the top of the base 10.

[0035] See also Figure 1 , Figure 2 , Figure 3 and Figure 7 The push mechanism 30 includes a first mounting plate 301 symmetrically slidably connected to the top of the base 10, and rollers 302 are fixedly connected to the top of each of the first mounting plates 301. A mounting rod 303 is fixedly connected to the top of one of the first mounting plates 301, and a first connecting rod 304 is rotatably connected to the outside of the mounting rod 303, and a second connecting rod 305 is fixedly connected to one end of the first connecting rod 304. The push mechanism 30 also includes a pressing mechanism 50 to prevent the workpiece from deflecting, and a surface treatment mechanism 60 for cleaning the workpiece residue. The rollers 302 are provided in multiple groups, and each group of rollers 302 has two rollers.

[0036] The pushing mechanism 30 also includes an articulated seat 306 rotatably connected to the first connecting rod 304 away from one end of the first connecting rod 304 , the articulated seat 306 is horizontally threadedly connected to a screw rod 307 , one end of the screw rod 307 is fixedly connected to a resistance plate 308 , and the other end of the screw rod 307 is fixedly connected to a knob 309 .

[0037] In specific operation, the cylindrical workpiece is transported from the supply mechanism 40 to between the two rollers 302, then passes through the downward limit of the downward pressing mechanism 50, and finally the first connecting rod 304 is pushed by the second connecting rod 305 to rotate along the mounting rod 303. During the rotation process, the first connecting rod 304 pushes one end of the workpiece through the contact plate 308, so that the workpiece moves horizontally along the rollers 302 toward the thread rolling body 20. Ensure that the workpiece accurately enters the processing area between the thread rolling bodies 20, and use the high repeatability of the connecting rod mechanism to ensure the position consistency of the workpiece each time it is pushed.

[0038] When the first connecting rod 304 is close to one end of the workpiece, the knob 309 can be turned to rotate the screw rod 307, thereby driving the abutment plate 308 close to one end of the workpiece, so that the first connecting rod 304 can adapt to push workpieces of different lengths.

[0039] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 The supply mechanism 40 includes an L-shaped bracket 401 fixedly connected to the top of the first mounting plate 301, a material storage box 402 is fixedly connected to the side of the L-shaped bracket 401, a discharge port 403 is provided at the bottom of the side of the material storage box 402 close to the roller 302, and a material discharging groove 404 is provided at the side of the material storage box 402 away from the roller 302 and at the bottom of the material storage box 402.

[0040] The first mounting plate 301 is slidably connected to the top of a first movable plate 405, the top of the first movable plate 405 is rotatably connected to a rotating rod 406, the outside of the rotating rod 406 is fixedly connected to a first shift rod 407, the first shift rod 407 is fixedly connected to one end of the rotating rod 406, and the first hydraulic cylinder 409 is fixedly connected to the top of the first mounting plate 301, and the output end of the first hydraulic cylinder 409 is fixedly connected to the first movable plate 405.

[0041] During specific operation, the cylindrical workpieces are placed in the storage box 402 in sequence. When the workpieces are transported to the pushing mechanism 30, the first movable plate 405 is pushed to move horizontally by the first hydraulic cylinder 409, and the first lever 407 on the top of the first movable plate 405 enters the material shifting groove 404. The first lever 407 pushes the workpiece at the bottom of the storage box 402 out of the discharge port 403. When the first lever 407 pushes the workpiece, the second lever 408 contacts the top of the first movable plate 405, and then the workpiece leaves the discharge port 403. The workpiece rolls along the L-shaped bracket 401 between the two rollers 302, and finally the workpiece is pushed into the rolling body 20 through the pushing mechanism 30.

[0042] When the first hydraulic cylinder 409 drives the first movable plate 405 to move in the opposite direction and reset, the first lever 407 first contacts the workpiece on the side of the discharge port 403, and then the first lever 407 and the second lever 408 drive the rotating rod 406 to rotate, so that the first lever 407 slides from the bottom of the storage box 402, so that the first lever 407 moves to the side of the storage box 402 away from the discharge port 403, and then, driven by the second lever 408, the second lever 408 continues to contact the top of the first movable plate 405, and finally, the first hydraulic cylinder 409 continues to push the first movable plate 405 to move horizontally in the direction of the pushing mechanism 30 to complete the loading of the next workpiece.

[0043] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The pressing mechanism 50 includes a guide rod 501 vertically fixedly connected to the top of the first mounting plate 301, the guide rod 501 is slidably connected to the outside of the second movable plate 502, the second movable plate 502 is fixedly connected to the bottom of the roller 302, the guide rod 501 at the top of the second movable plate 502 is sleeved with a first spring 503, one end of the first spring 503 is fixedly connected to the second movable plate 502, and the other end of the first spring 503 is fixedly connected to the top protrusion of the guide rod 501.

[0044] The pressing mechanism 50 also includes an L-shaped rod 504 fixedly connected to the side of the first movable plate 405, a triangular block 505 is fixedly connected to the top of the vertical section of the L-shaped rod 504, and the horizontal section of the L-shaped rod 504 is rotatably connected to the end of the second connecting rod 305 away from the first connecting rod 304 through a connecting rod.

[0045] During specific operation, when the first hydraulic cylinder 409 pushes the first movable plate 405 to move horizontally toward the material pushing mechanism 30, the first movable plate 405 drives the triangular block 505 to move along the bottom of the second movable plate 502 through the L-shaped rod 504. When the workpiece is transported to the roller 302, the triangular block 505 is separated from the bottom of the second movable plate 502. At this time, the second movable plate 502 is moved downward along the guide rod 501 under the elastic force of the first spring 503. The roller 302 at the bottom of the second movable plate 502 presses the workpiece down on the roller 302 of the first mounting plate 301. The second movable plate 502 presses the workpiece down, which can ensure that the workpiece remains stable when being pushed toward the thread rolling body 20 and does not deviate. During the horizontal movement of the L-shaped rod 504, the second connecting rod 305 is driven to rotate through the first connecting rod 304.

[0046] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 and Fig. 9 The surface treatment mechanism 60 includes a second mounting plate 601 fixedly connected to the top of the first mounting plate 301, a rotating ring 602 is rotatably connected to the middle of the second mounting plate 601, a circular brush plate 605 is fixedly connected inside the rotating ring 602, a driven wheel 603 is coaxially fixedly connected to the side of the rotating ring 602 close to the rolling body 20, and a driving wheel 604 is fixedly connected to the extended end of the rotating axis of the rolling body 20.

[0047] The surface treatment mechanism 60 includes a limiting mechanism 70 arranged inside the rotating ring 602, and the limiting mechanism 70 includes a mounting ring 701 rotatably connected to the side of the second mounting plate 601, and a plurality of rotating plates 702 are rotatably connected to the side of the second mounting plate 601, and a slide groove 704 is opened in the middle of each rotating plate 702, and a limiting rod 703 is slidably connected inside each slide groove 704, and the limiting rod 703 is fixedly connected to the side of the mounting ring 701, and one end of the rotating plate 702 is rotatably connected to an extrusion wheel 705, and a second hydraulic cylinder 706 is also fixedly connected to the side of the second mounting plate 601, and the output end of the second hydraulic cylinder 706 is rotatably connected to the mounting ring 701, and the plurality of rotating plates 702 are arranged in a ring shape on the mounting ring 701, and one end of the rotating plate 702 is rotatably connected to the side of the second mounting plate 601, and the other end of the rotating plate 702 is rotatably connected to the extrusion wheel 705, and there are three rotating plates 702.

[0048] During specific operation, when the workpiece on the pushing mechanism 30 is pushed toward the rolling body 20, the workpiece enters the mounting ring 701, and then the workpiece enters the rotating ring 602. When the workpiece is in the mounting ring 701, the second hydraulic cylinder 706 is started to drive the mounting ring 701 to rotate, and the rotating mounting ring 701 drives the rotating plate 702 to rotate through the limiting rod 703. Since one end of the rotating plate 702 is rotatably connected to the second mounting plate 601, the extrusion wheel 705 at the other end of the rotating plate 702 abuts against the surface of the workpiece, and the extrusion wheels 705 on the three rotating plates 702 are synchronously centered and abutted against The workpiece surface can always be kept in the same plane when processing workpieces of different diameters. When the workpiece enters the brush plate 605 of the rotating ring 602, the rotating shaft of the thread rolling body 20 drives the active wheel 604 to rotate, and the active wheel 604 conflicts with the driven wheel 603, thereby driving the rotating ring 602 to rotate through the driven wheel 603. The rotating rotating ring 602 drives the annular brush plate 605 to remove metal impurities on the surface of the workpiece to ensure that the surface of the workpiece is clean. The clean surface helps to improve the processing quality during the thread rolling process and reduce thread defects or surface damage caused by impurities.

[0049] See also Figure 1 , Figure 2 and Fig.10 A lifting mechanism 80 for adjusting the height of the workpiece is provided between the base 10 and the first mounting plate 301. The lifting mechanism 80 includes a rotating rod 801 that horizontally penetrates the base 10. The rotating rod 801 is provided with positive threads 802 and negative threads 803 alternately arranged on its exterior. Two groups of positive threads 802 and negative threads 803 are provided on both sides of the base 10, respectively, and a hand wheel is fixedly connected to one end of the rotating rod 801.

[0050] The outside of the positive thread 802 and the negative thread 803 are both threadedly connected to a movable seat 804, and the top of each movable seat 804 is rotatably connected to a support rod 805. The middle parts of the two support rods 805 are rotatably connected by a rotating axis, and the ends of the two support rods 805 away from the movable seat 804 are rollingly connected to the bottom of the first mounting plate 301.

[0051] During specific operation, the hand wheel is turned to drive the rotating rod 801 to rotate, and the moving seat 804 is driven to move through the two sets of positive threads 802 and negative threads 803, thereby driving the two support rods 805 to rotate relative to each other. The two support rods 805 are used to push the two first mounting plates 301 upward or downward to rise or fall. The lifting mechanism 80 can be used to adjust the workpiece and the rolling thread to be at the same height, so that the workpiece can enter the rolling thread body 20 horizontally. The lifting mechanism 80 enables the device to process workpieces of different sizes.

[0052] Working principle: The cylindrical workpiece is continuously transported from the supply mechanism 40 to the pushing mechanism 30, and then the supply mechanism 40 drives the pressing mechanism 50 to press the workpiece down on the pushing mechanism 30, and then the supply mechanism 40 drives the pushing mechanism 30 to push the pressed workpiece to the limiting mechanism 70 and the surface treatment mechanism 60. When being processed by the surface treatment mechanism 60, the limiting mechanism 70 keeps the workpiece stable. Finally, the workpiece is pushed to the thread rolling body 20 for thread rolling treatment. When processing workpieces of different specifications, the lifting mechanism 80 is used to adjust the workpiece and the thread rolling to the same height, so that the workpiece can enter the thread rolling body 20 horizontally. The lifting mechanism 80 enables the device to process workpieces of different sizes.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person 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. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thread rolling machine, characterized in that: The invention comprises a base (10), a thread rolling body (20) is arranged on the top of the base (10), a pushing mechanism (30) for automatically pushing a workpiece to the thread rolling position for docking is arranged on the top of the base (10), and a supply mechanism (40) for continuously conveying the workpiece to the thread rolling position is also arranged on the top of the base (10); The push mechanism (30) comprises a first mounting plate (301) symmetrically slidably connected to the top of the base (10), the first mounting plates (301) are fixedly connected to the top with rollers (302), one of the first mounting plates (301) is fixedly connected to the top with a mounting rod (303), the mounting rod (303) is externally rotatably connected to a first connecting rod (304), one end of the first connecting rod (304) is fixedly connected to a second connecting rod (305), the push mechanism (30) further comprises a pressing mechanism (50) for preventing the workpiece from deflecting, and the push mechanism (30) further comprises a surface treatment mechanism (60) for cleaning the workpiece residue.

2. A thread rolling machine according to claim 1, characterized in that: The pushing mechanism (30) further comprises an articulated seat (306) rotatably connected to one end of the first connecting rod (304) away from the first connecting rod (304), the articulated seat (306) being horizontally threadedly connected to a screw rod (307), one end of the screw rod (307) being fixedly connected to a resistance plate (308), and the other end of the screw rod (307) being fixedly connected to a knob (309).

3. A thread rolling machine according to claim 1, characterized in that: The supply mechanism (40) comprises an L-shaped bracket (401) fixedly connected to the top of the first mounting plate (301), a material storage box (402) being fixedly connected to the side of the L-shaped bracket (401), a material discharge port (403) being provided at the bottom of the side of the material storage box (402) close to the roller (302), and a material dispensing groove (404) being provided at the side of the material storage box (402) away from the roller (302) and at the bottom of the material storage box (402).

4. A thread rolling machine according to claim 3, characterized in that: The top of the first mounting plate (301) is slidably connected to a first movable plate (405), the top of the first movable plate (405) is rotatably connected to a rotating rod (406), the outside of the rotating rod (406) is fixedly connected to a first shifting rod (407), one end of the first shifting rod (407) close to the rotating rod (406) is fixedly connected to a second shifting rod (408), the top of the first mounting plate (301) is fixedly connected to a first hydraulic cylinder (409), and the output end of the first hydraulic cylinder (409) is fixedly connected to the first movable plate (405).

5. A thread rolling machine according to claim 1, characterized in that: The pressing mechanism (50) comprises a guide rod (501) vertically fixedly connected to the top of the first mounting plate (301); the guide rod (501) is slidably connected to the outside of the second movable plate (502); the bottom of the second movable plate (502) is fixedly connected to a roller (302); the guide rod (501) at the top of the second movable plate (502) is sleeved with a first spring (503); one end of the first spring (503) is fixedly connected to the second movable plate (502); and the other end of the first spring (503) is fixedly connected to a protrusion at the top of the guide rod (501).

6. A thread rolling machine according to claim 5, characterized in that: The pressing mechanism (50) further comprises an L-shaped rod (504) fixedly connected to the side of the first movable plate (405), a triangular block (505) being fixedly connected to the top of the vertical section of the L-shaped rod (504), and a horizontal section of the L-shaped rod (504) being rotatably connected to an end of the second connecting rod (305) away from the first connecting rod (304) via a connecting rod.

7. A thread rolling machine according to claim 1, characterized in that: The surface treatment mechanism (60) comprises a second mounting plate (601) fixedly connected to the top of the first mounting plate (301); a rotating ring (602) is rotatably connected to the middle of the second mounting plate (601); a circular brush plate (605) is fixedly connected inside the rotating ring (602); a driven wheel (603) is coaxially fixedly connected to the side of the rotating ring (602) close to the rolling body (20); and a driving wheel (604) is fixedly connected to the extended end of the rotating shaft of the rolling body (20).

8. A thread rolling machine according to claim 6, characterized in that: The surface treatment mechanism (60) comprises a limiting mechanism (70) arranged inside the rotating ring (602), the limiting mechanism (70) comprising a mounting ring (701) rotatably connected to the side of the second mounting plate (601), the side of the second mounting plate (601) being rotatably connected to a plurality of rotating plates (702), each of the rotating plates (702) being provided with a slide groove (704) in the middle, a limiting rod (703) being slidably connected inside each of the slide grooves (704), the limiting rod (703) being fixedly connected to the side of the mounting ring (701), one end of the rotating plate (702) being rotatably connected to an extrusion wheel (705), the side of the second mounting plate (601) being further fixedly connected to a second hydraulic cylinder (706), the output end of the second hydraulic cylinder (706) being rotatably connected to the mounting ring (701).

9. A thread rolling machine according to claim 1, characterized in that: A lifting mechanism (80) for adjusting the height of a workpiece is provided between the base (10) and the first mounting plate (301), the lifting mechanism (80) comprising a rotating rod (801) horizontally penetrating the base (10), the rotating rod (801) having positive threads (802) and negative threads (803) alternately formed on its exterior.

10. A thread rolling machine according to claim 9, characterized in that: The outsides of the positive thread (802) and the negative thread (803) are both threadedly connected to a movable seat (804), and the top of each movable seat (804) is rotatably connected to a support rod (805). The middle parts of the two support rods (805) are rotatably connected via a rotating shaft, and the ends of the two support rods (805) away from the movable seat (804) are rollingly connected to the bottom of the first mounting plate (301).

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