Bolt thread rolling machine with high protection performance
By introducing a positioning structure consisting of a ferrule, a clamping plate, and a stop roller onto the thread rolling machine, combined with an automated feeding system driven by a servo motor, the safety risks during manual feeding and the uneven thread rolling caused by bolt tilting are solved, achieving a high-protection and high-quality bolt thread rolling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI ZHUSHAN FASTENER MANUFACTURING CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-14
AI Technical Summary
Existing thread rolling machines pose safety risks during manual feeding and can cause uneven thread rolling due to bolt tilting.
Bolts are positioned using ferrules and clamps, bolt tilting is prevented by abutment rollers, and automated feeding is achieved through a servo motor driven transmission system. The combination of cleaning rollers and positioning rods improves safety and thread rolling quality.
It effectively prevents safety accidents caused by operators' hands being caught, ensures accurate positioning during bolt feeding, and improves the uniformity and quality of thread rolling.
Smart Images

Figure CN224115071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thread rolling machine technology, specifically to a highly protective bolt thread rolling machine. Background Technology
[0002] A thread rolling machine is a multi-functional cold extrusion forming machine tool, mainly used for rolling threads, straight lines, and oblique lines on workpieces. The thread rolling machine applies pressure to the workpiece surface through two or three rolling rollers, causing plastic deformation to form threads or other shapes. This process does not require cutting; it is completed through cold extrusion, thus improving the internal and surface quality of the workpiece while enhancing its fatigue and torsional strength. Thread rolling machines can be fed manually or automatically.
[0003] During manual feeding, improper operation can easily cause the operator's hands to be caught in the two sets of thread rolling wheels, leading to safety accidents. Furthermore, during manual feeding, bolts are prone to tilting, resulting in uneven thread formation at the outer end of the bolt. To address these issues, a highly protective bolt thread rolling machine is proposed, which uses a ferrule and an outer clamping plate to position the inserted bolt, thus resolving the aforementioned problems. Utility Model Content
[0004] This utility model proposes a highly protective bolt thread rolling machine, which solves the problems of safety accidents caused by improper operation during the feeding process and uneven thread rolling caused by tilting of the bolt during feeding in related technologies.
[0005] The technical solution of this utility model is as follows:
[0006] A highly protective bolt thread rolling machine includes a worktable, a thread rolling structure fixedly connected to the top of the worktable, a protective component provided at the top of the worktable, the protective component including a connecting seat fixedly connected to the top of the worktable, a retaining sleeve rotatably connected inside the connecting seat, a support rod fixedly connected to the outer end of the connecting seat, a clamping plate fixedly connected to the outer end of the support rod, a connecting plate fixedly connected to the outer end of the clamping plate, a sliding rod slidably connected inside the connecting plate, and a stop wheel rotatably connected to one end of the sliding rod.
[0007] Optionally, the connecting plate is provided in three sets arranged in a ring, and the protective assembly further includes a spring fixedly connected between the connecting plate and the slide rod.
[0008] Optionally, the top of the thread rolling structure is symmetrically fixedly connected with connecting plates, and a connecting rod is slidably connected between the two connecting plates. The outer end of the connecting rod is rotatably connected to a baffle plate. A slot is provided at the top of the workbench, and the slot is located between the two thread rolling rods of the thread rolling structure.
[0009] Optionally, a side plate is fixedly connected to the top of the workbench. The side plate has two side plates that are symmetrical about the trough. A cleaning roller is rotatably connected inside the side plate. A roller is symmetrically rotatably connected inside the trough. A cleaning brush is fixedly connected to the outer end of the roller. A retaining shaft is fixedly connected to one end of the roller. The retaining shaft is rotatably connected to the inside of the workbench.
[0010] Optionally, a device plate is fixedly connected to one side of the workbench, a servo motor is fixedly connected to the outer end of the device plate, a transmission gear is fixedly connected to the output end of the servo motor, a driven gear is meshed with the outer end of the transmission gear, and the transmission gear and the driven gear are located inside the device plate.
[0011] Optionally, the outer ends of the transmission gear, the driven gear, and the clasp are all fixedly connected to pulleys, and a connecting belt is sleeved between two adjacent pulleys.
[0012] Optionally, a driving component is fixedly connected to the back of the thread rolling structure, a guide rod is fixedly connected to the inner side of the driving component, and a positioning rod is slidably connected inside the guide rod.
[0013] Optionally, a positioning plate is fixedly connected to the top end of the positioning rod, and positioning grooves are symmetrically opened at the top end of the guide rod. A positioning bolt is slidably connected inside the positioning groove, and the positioning bolt is engaged with the positioning plate. A positioning nut is threadedly connected to the outer end of the positioning bolt.
[0014] The working principle and beneficial effects of this utility model are as follows:
[0015] In this invention, the bolt is clamped by a sleeve and a clamping plate. During the feeding process, this prevents the operator from accidentally getting their hand stuck between the two sets of thread rolling wheels, which could lead to a safety accident. At the same time, the abutment wheel connected by the sliding rod positions the bolt to prevent it from tilting and causing uneven thread rolling at the outer end of the bolt, which would affect the thread rolling effect and quality. Attached Figure Description
[0016] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the protective component of this utility model;
[0019] Figure 3 This is a schematic diagram of the connection structure between the workbench and the trough of this utility model;
[0020] Figure 4 This is a side view of the present invention;
[0021] Figure 5 This is a schematic diagram of the connection structure between the transmission gear and the driven gear of this utility model;
[0022] Figure 6 This is a schematic diagram of the connection structure between the guide rod and the positioning rod of this utility model.
[0023] In the diagram: 1. Workbench; 2. Thread rolling structure; 3. Protective component; 301. Connecting seat; 302. Sleeve; 303. Support rod; 304. Clamping plate; 305. Connecting plate; 306. Slide rod; 307. Abutment wheel; 308. Spring; 4. Connecting plate; 5. Connecting rod; 6. Baffle plate; 7. Slot; 8. Side plate; 9. Cleaning roller; 10. Roller; 11. Cleaning brush; 12. Clamping shaft; 13. Equipment plate; 14. Servo motor; 15. Transmission gear; 16. Driven gear; 17. Pulley; 18. Connecting belt; 19. Drive component; 20. Guide rod; 21. Positioning rod; 22. Positioning plate; 23. Positioning groove; 24. Positioning bolt; 25. Positioning nut. Detailed Implementation
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0025] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0026] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] Example 1
[0029] Reference Figures 1-3 This is the first embodiment of the present invention, which proposes a highly protective bolt thread rolling machine, including a workbench 1, a thread rolling structure 2 fixedly connected to the top of the workbench 1, a protective component 3 provided at the top of the workbench 1, the protective component 3 including a connecting seat 301 fixedly connected to the top of the workbench 1, a retaining sleeve 302 rotatably connected inside the connecting seat 301, a support rod 303 fixedly connected to the outer end of the connecting seat 301, a retaining plate 304 fixedly connected to the outer end of the support rod 303, a connecting plate 305 fixedly connected to the outer end of the retaining plate 304, a sliding rod 306 slidably connected inside the connecting plate 305, and a stop wheel 307 rotatably connected to one end of the sliding rod 306. The purpose of this design is to allow the bolt to be inserted into the retaining sleeve 302 inside the connecting seat 301 during loading and unloading, so that the operator's hands do not need to enter the inside of the thread rolling structure 2, thereby avoiding safety accidents and improving the protection of the thread rolling machine. After the bolt is inserted into the retaining sleeve 302, the abutment roller 307 clamps the bolt from the side to prevent the bolt from tilting during loading, which would cause uneven thread rolling at the outer end of the bolt.
[0030] Optionally, the connecting plate 305 has three sets arranged in a ring, and the protective assembly 3 also includes a spring 308 fixedly connected between the connecting plate 305 and the slide bar 306. The purpose of this arrangement is that the spring 308 enhances the stability of the abutment wheel 307 in clamping the bolt.
[0031] Optionally, connecting plates 4 are symmetrically fixedly connected to the top of the thread rolling structure 2, and connecting rods 5 are slidably connected between the two connecting plates 4. The outer end of the connecting rods 5 is rotatably connected to a baffle plate 6. A trough 7 is provided at the top of the worktable 1, and the trough 7 is located between the two thread rolling rods of the thread rolling structure 2. The purpose of this arrangement is that the baffle plate 6 serves to prevent splashing, and the trough 7 is used to filter the metal wire and coolant.
[0032] Example 2
[0033] Reference Figures 3-6 This is the second embodiment of the present invention, which differs from the first embodiment in that:
[0034] Compared to Embodiment 1, the workbench 1 is further provided with a side plate 8 fixedly connected to its top. Two side plates 8 are provided, symmetrically about the slot 7. A cleaning roller 9 is rotatably connected inside the side plate 8. Rollers 10 are symmetrically rotatably connected inside the slot 7. A cleaning brush 11 is fixedly connected to the outer end of the roller 10. A retaining shaft 12 is fixedly connected to one end of the roller 10, and the retaining shaft 12 is rotatably connected inside the workbench 1. The purpose of this arrangement is to allow the cleaning roller 9 to clean the outer end of the thread rolling wheel of the thread rolling structure 2, preventing the metal wire from getting stuck in the thread groove at the outer end of the thread rolling wheel, which would cause uneven thread rolling at the outer end of the bolt.
[0035] Optionally, a device plate 13 is fixedly connected to one side of the workbench 1. A servo motor 14 is fixedly connected to the outer end of the device plate 13. A transmission gear 15 is fixedly connected to the output end of the servo motor 14. A driven gear 16 meshes with the outer end of the transmission gear 15. The transmission gear 15 and the driven gear 16 are located inside the device plate 13. Pulleys 17 are fixedly connected to the outer ends of the transmission gear 15, the driven gear 16, and the retaining shaft 12. A connecting belt 18 is sleeved between two adjacent pulleys 17. The purpose of this arrangement is that during the processing, the servo motor 14 drives the transmission gear 15 to rotate, and at the same time, the transmission gear 15 drives the driven gear 16 to rotate. The connecting belt 18 at the outer ends of the transmission gear 15 and the driven gear 16 drives the roller 10 connected to the pulley 17 to rotate inside the trough 7. At this time, the cleaning brush 11 at the outer end of the roller 10 cleans the metal wire and prevents the metal wire from accumulating on the top of the workbench 1.
[0036] Optionally, a drive member 19 is fixedly connected to the back of the thread rolling structure 2. A guide rod 20 is fixedly connected to the inner side of the drive member 19. A positioning rod 21 is slidably connected inside the guide rod 20. A positioning plate 22 is fixedly connected to the top of the positioning rod 21. A positioning groove 23 is symmetrically opened at the top of the guide rod 20. A positioning bolt 24 is slidably connected inside the positioning groove 23. The positioning bolt 24 is engaged with the positioning plate 22. A positioning nut 25 is threadedly connected to the outer end of the positioning bolt 24. The purpose of this arrangement is that the positioning rod 21 can be adjusted according to the required thread rolling length of the bolt. During the adjustment process, the positioning rod 21 inside the sliding guide rod 20 is slid, and the positioning bolt 24 and the positioning nut 25 are used to fix the positioning plate 22 at the top of the guide rod 20, which is simple to operate.
[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A high-protection bolt thread rolling machine, comprising a worktable (1), characterized in that, The top of the workbench (1) is fixedly connected to a thread rolling structure (2), and the top of the workbench (1) is provided with a protective component (3). The protective component (3) includes a connecting seat (301) fixedly connected to the top of the workbench (1). A sleeve (302) is rotatably connected inside the connecting seat (301). A support rod (303) is fixedly connected to the outer end of the connecting seat (301). A clamping plate (304) is fixedly connected to the outer end of the support rod (303). A connecting plate (305) is fixedly connected to the outer end of the clamping plate (304). A sliding rod (306) is slidably connected inside the connecting plate (305). A stop wheel (307) is rotatably connected to one end of the sliding rod (306).
2. The high-protection bolt thread rolling machine according to claim 1, characterized in that, The connecting plate (305) is provided in three sets arranged in a ring, and the protective component (3) also includes a spring (308) fixedly connected between the connecting plate (305) and the slide rod (306).
3. The high-protection bolt thread rolling machine according to claim 1, characterized in that, The top of the thread rolling structure (2) is symmetrically fixedly connected with a connecting plate (4), and a connecting rod (5) is slidably connected between the two connecting plates (4). The outer end of the connecting rod (5) is rotatably connected to a shielding plate (6). A slot (7) is opened at the top of the workbench (1), and the slot (7) is located between the two thread rolling rods of the thread rolling structure (2).
4. A high-protection bolt thread rolling machine according to claim 3, characterized in that, The top of the workbench (1) is fixedly connected to a side plate (8). The side plate (8) has two plates and is symmetrical about the trough (7). A cleaning roller (9) is rotatably connected inside the side plate (8). A roller (10) is symmetrically rotatably connected inside the trough (7). A cleaning brush (11) is fixedly connected to the outer end of the roller (10). A retaining shaft (12) is fixedly connected to one end of the roller (10). The retaining shaft (12) is rotatably connected inside the workbench (1).
5. A high-protection bolt thread rolling machine according to claim 4, characterized in that, A device plate (13) is fixedly connected to one side of the workbench (1). A servo motor (14) is fixedly connected to the outer end of the device plate (13). A transmission gear (15) is fixedly connected to the output end of the servo motor (14). A driven gear (16) meshes with the outer end of the transmission gear (15). The transmission gear (15) and the driven gear (16) are located inside the device plate (13).
6. A high-protection bolt thread rolling machine according to claim 5, characterized in that, The outer ends of the transmission gear (15), the driven gear (16) and the clasp (12) are all fixedly connected to pulleys (17), and a connecting belt (18) is sleeved between two adjacent pulleys (17).
7. A high-protection bolt thread rolling machine according to claim 1, characterized in that, The back of the thread rolling structure (2) is fixedly connected to a drive member (19), the inner side of the drive member (19) is fixedly connected to a guide rod (20), and the inside of the guide rod (20) is slidably connected to a positioning rod (21).
8. A high-protection bolt thread rolling machine according to claim 7, characterized in that, The top end of the positioning rod (21) is fixedly connected to a positioning plate (22), and the top end of the guide rod (20) is symmetrically provided with positioning grooves (23). The positioning grooves (23) are slidably connected to a positioning bolt (24), which is engaged with the positioning plate (22). The outer end of the positioning bolt (24) is threaded with a positioning nut (25).