A bolt forming device
By designing an automated bolt forming device and using a hydraulic device to drive the slider movement, the automated forming of cylindrical blanks and the automatic unloading of bolt blanks are realized, solving the problem of heavy manual operation in the existing technology and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUOYA MOULD (ZHEJIANG) CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-23
Smart Images

Figure CN224389889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt processing technology, specifically a bolt forming device. Background Technology
[0002] When making larger bolts, a cylindrical blank needs to be made first. Then, one end of the blank is heated and then extruded into shape using a mold. After the cylindrical blank is extruded, a bolt blank is formed. Subsequent processing steps, such as surface treatment and thread processing, can be performed on the bolt blank.
[0003] When processing a cylindrical blank into a bolt blank, an extrusion device is required. The existing extrusion device includes a lower die and an upper die. After the cylindrical blank is placed into the lower die, the upper end of the cylindrical blank is pressed against the upper die by controlling the lower die to form a bolt blank. Then, the operator removes the bolt blank and adds a cylindrical blank to the lower die. Since both the placement of the cylindrical blank and the removal of the bolt blank require manual intervention from the operator, the operator's workload is heavy and it is difficult to meet the usage requirements. Utility Model Content
[0004] The purpose of this invention is to provide a bolt forming device that aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: the bolt forming device includes:
[0006] The mounting platform is equipped with a waste discharge trough for discharging waste residue and a guide ramp for guiding bolts out.
[0007] A molding section is disposed on a mounting platform and is inclined on the mounting platform;
[0008] A placement section for placing cylindrical blanks for machining bolts, the placement section being mounted on a mounting platform and movable along the mounting platform;
[0009] A power unit is mounted on a mounting platform and can control the movement of the placement unit;
[0010] The unloading section is disposed on the forming section and is used to guide the formed bolts to the guide slope of the mounting platform.
[0011] Preferably, the molding part includes a molding die, the mounting platform has an inclined mounting surface, the molding die is disposed at the upper end of the mounting surface of the mounting platform, and the molding die has a molding groove.
[0012] Preferably, the placement part includes a slider, a fixing rod is provided between the mounting platform and the molding mold, the slider is slidably connected to the fixing rod, the slider has a U-shaped placement groove, the slider also has a bottom groove that communicates with the placement groove, the bottom groove has a circular cross-section, one end of the bottom groove near the placement groove is rounded, both ends of the bottom groove are through, a flange is provided on the upper side of the lower end of the bottom groove, and the bottom groove communicates with the waste discharge groove on the mounting platform.
[0013] Preferably, the power unit includes a hydraulic device, which is disposed inside the mounting platform. A fixing plate is provided on one side of the slider, and the output end of the hydraulic device is connected to the fixing plate.
[0014] Preferably, the unloading part includes a baffle plate with an inverted V-shaped notch. Two guide rods are provided on one side of the baffle plate. The forming mold has recesses on both sides of the forming groove. A through hole is provided at the bottom of the recess. The guide rods are slidably connected to the forming mold through the through hole. The inner diameter of the recess is larger than the outer diameter of the guide rod. A limit block is provided at the upper end of the guide rod. A spring is sleeved on the guide rod and is located between the recess and the baffle plate.
[0015] The beneficial effects of this utility model are:
[0016] When using this bolt forming device, the operator only needs to place the cylindrical blank into the placement groove and bottom groove. After the cylindrical blank is processed into a bolt blank, the completed bolt blank can be directly transferred to the guide slope through the set baffle and notch. The transfer of the bolt blank does not require manual intervention from the operator, who only needs to be responsible for feeding the cylindrical blank, which reduces the operating pressure and has a good effect. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.
[0018] Figure 2 Cross-sectional view of the mounting platform.
[0019] Figure 3 This is a schematic diagram showing the fit between the baffle and the bolt.
[0020] Figure 4 This is a schematic diagram of the internal structure of the settling tank.
[0021] Figure 5 This is a schematic diagram of the slider pressing against the baffle.
[0022] Figure 6 This is a schematic diagram showing the separation of the bolt and the slider.
[0023] Figure 7This is a schematic diagram of the bolt being removed from the forming groove.
[0024] In the diagram: 1. Mounting platform; 2. Waste discharge trough; 3. Guide slope; 4. Cylindrical blank; 5. Bolt; 6. Molding mold; 7. Molding groove; 8. Slider; 9. Fixing rod; 10. Placement groove; 11. Bottom groove; 12. Rounding; 13. Flange; 14. Hydraulic device; 15. Fixing plate; 16. Baffle; 17. Notch; 18. Guide rod; 19. Sink; 20. Limiting block; 21. Spring. Detailed Implementation
[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0026] like Figure 1-7 As shown, a bolt forming device includes:
[0027] Mounting platform 1, which is equipped with a waste discharge trough 2 for discharging waste residue and a guide slope 3 for guiding bolts 5 out.
[0028] The molding part is set on the mounting platform 1 and is inclined on the mounting platform 1.
[0029] The placement section is used to place the cylindrical blank 4 for machining bolts 5. The placement section is set on the mounting table 1 and can move along the mounting table 1.
[0030] The power unit is installed on the mounting platform 1 and can control the movement of the placement unit;
[0031] The unloading section is located on the forming section and is used to guide the formed bolts 5 to the guide slope 3 of the mounting table 1.
[0032] Furthermore, the molding part includes a molding die 6, the mounting table 1 has an inclined mounting surface, the molding die 6 is disposed at the upper end of the mounting surface of the mounting table 1, and the molding die 6 is provided with a molding groove 7.
[0033] The molding mold 6 is inclined, with an inclination angle between 30° and 50°. In this application, the inclination angle of the molding mold 6 is 45°. After one end of the cylindrical blank 4 is heated and formed in the molding mold 6, some oxides will adhere to the inside of the molding groove 7. Therefore, after the molding of one cylindrical blank 4 is completed, a cooling device and a blowing device are required. The cooling device sprays cooling water into the molding groove 7 to reduce the temperature of the molding groove 7. The blowing device is used to blow the molding groove 7 to blow out the oxides in the molding groove 7. Only after the molding groove 7 is cooled by the cooling device and cleaned by the blowing device can the molding of the next cylindrical blank 4 be carried out. Since the molding groove 7 is inclined, it is also convenient for the oxides in the molding groove 7 to fall out. Since most of the existing molding grooves 7 are vertically set with the opening facing downwards, it is inconvenient for the staff to pass through the molding groove 7. However, the inclined molding groove 7 makes it convenient for the staff to observe the situation inside the molding groove 7.
[0034] Furthermore, the placement part includes a slider 8, a fixing rod 9 is provided between the mounting platform 1 and the molding mold 6, the slider 8 is slidably connected to the fixing rod 9, the slider 8 has a U-shaped placement groove 10, the slider 8 also has a bottom groove 11 that communicates with the placement groove 10, the bottom groove 11 has a circular cross-section, the bottom groove 11 has a rounded end 12 near the placement groove 10, both ends of the bottom groove 11 are connected, the bottom end of the bottom groove 11 has a flange 13 on the upper side of the lower end, and the bottom groove 11 communicates with the waste discharge groove 2 on the mounting platform 1.
[0035] The bottom of the placement groove 10 is semi-circular, and the diameter of the semi-circular part of the placement groove 10 is the same as the diameter of the bottom groove 11. The opening of the placement groove 10 is in an open state, which facilitates the placement of the cylindrical blank 4 into the placement groove 10. The top of the bottom groove 11 is in a closed state. When the cylindrical blank 4 enters the placement groove 10 and the bottom groove 11, it can limit the cylindrical blank 4 and prevent the cylindrical blank 4 from shaking back and forth. In this application, the diameter of the cylindrical blank 4 is 20mm, and the diameter of the bottom groove 11 is 21mm. The flange 13 can limit the cylindrical blank 4. This position prevents the cylindrical blank 4 from slipping out of the bottom groove 11. Since there is no flange 13 on the lower side of the bottom groove 11, the waste oxide generated during processing may enter the placement groove 10 and the bottom groove 11. When the oxide enters the bottom groove 11, if the cylindrical blank 4 is placed in the placement groove 10 and the bottom groove 11, the cylindrical blank 4 will push the oxide to the bottom of the bottom groove 11. The oxide is discharged through the waste discharge groove 2 on the mounting platform 1, so that the position of the cylindrical blank 4 will not have a large deviation, and ensure that the processing of the cylindrical blank 4 meets the production requirements.
[0036] Staff can also regularly perform deep cleaning of the placement tank 10, bottom tank 11 and waste discharge tank 2 to prevent the waste discharge tank 2 from becoming clogged.
[0037] Furthermore, the power unit includes a hydraulic device 14, which is installed inside the mounting platform 1. A fixing plate 15 is provided on one side of the slider 8, and the output end of the hydraulic device 14 is connected to the fixing plate 15.
[0038] The hydraulic device 14 includes modules such as a hydraulic pump, hydraulic cylinder, directional control valve, pressure control valve, flow control valve, proportional valve, and controller, which can control parameters such as the extension distance and speed of the hydraulic cylinder output end in the hydraulic device 14. By controlling the extension of the hydraulic cylinder output end in the hydraulic device 14, the slider 8 can be driven to move upward along the fixed rod 9 via the fixed plate 15, thereby shortening the distance between the slider 8 and the forming groove 7. The upper end of the cylindrical blank 4, after being heated, can enter the forming groove 7 and be processed and shaped in the forming groove 7 by pressure. After the upper end of the cylindrical blank 4 is shaped in the forming groove 7, the output end of the hydraulic cylinder is retracted, thereby removing the bolt 5 from the sink 19.
[0039] Furthermore, the unloading section includes a baffle 16, on which an inverted V-shaped notch 17 is formed. Two guide rods 18 are provided on one side of the baffle 16. The forming mold 6 is provided with recesses 19 on both sides of the forming groove 7. A through hole is provided at the bottom of the recesses 19. The guide rods 18 are slidably connected to the forming mold 6 through the through hole. The inner diameter of the recesses 19 is larger than the outer diameter of the guide rods 18. A limit block 20 is provided at the upper end of the guide rods 18. A spring 21 is sleeved on the guide rods 18. The spring 21 is located between the recesses 19 and the baffle 16.
[0040] Because the cylindrical blank 4 is relatively heavy, with a diameter of 20mm, a length of 20cm, and a weight of approximately 0.5kg, after the cylindrical blank 4 is formed in the forming groove 7, its upper end will not be stuck in the forming groove 7. Simultaneously, the center of gravity of the cylindrical blank 4 remains on the slider 8. Therefore, when the slider 8 tilts downwards, it can drive the formed bolt 5 downwards. When the head of the bolt 5 contacts the baffle 16, it will engage with the baffle 16, at which point the bolt 5 will... It will not continue to follow the slider 8 downwards until the bolt 5 is completely dislodged from the slider 8. Since the notch 17 of the baffle 16 cannot support the bolt 5, when the bolt 5 is completely dislodged from the slider 8, the bolt 5 will fall directly onto the guide slope 3 of the mounting table 1 and roll off the guide slope 3. A collection frame can be set below the guide slope 3 to collect the bolt 5. At this time, the temperature of the bolt 5 is still high, so it can be naturally cooled in the collection frame and then transferred to the subsequent processing steps.
[0041] When the slider 8 presses the spring 21 through the baffle 16, the spring 21 will be compressed into the groove, and the distance that the slider 8 can move upward is limited. When the distance between the slider 8 and the forming mold 6 is the shortest, there is still a gap of at least 1 mm between the baffle 16 and the forming mold 6, thereby avoiding the slider 8 from being squeezed and damaged by the forming mold 6.
[0042] In this application, the forming mold 6 and the slider 8 are both metal castings. The forming mold 6 is fixed to the mounting platform 1 by means of bolts 5. When the device is in use, the mounting platform 1 also needs to be fixed to a suitable mounting platform to improve the stability of the device.
[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.
Claims
1. A bolt forming device, characterized in that it comprises: a mounting table, which is provided with a waste discharge groove for discharging waste and a material guide slope for guiding bolts out; a forming part, which is provided on the mounting table and is obliquely arranged on the mounting table; a placing part, which is used for placing cylindrical blanks for processing bolts, and is provided on the mounting table and can move along the mounting table; a power part, which is provided on the mounting table and can control the movement of the placing part; a discharging part, which is provided on the forming part and is used for guiding the formed bolts to the material guide slope of the mounting table.
2. The bolt forming apparatus of claim 1 wherein, The forming part comprises a forming die, the mounting table has an obliquely arranged mounting surface, the forming die is arranged at the upper end of the mounting surface of the mounting table, and a forming groove is formed in the forming die.
3. The bolt forming apparatus of claim 2 wherein, The placing part comprises a sliding block, a fixing rod is arranged between the mounting table and the forming die, the sliding block is in sliding connection with the fixing rod, a U-shaped placing groove is formed in the sliding block, a bottom groove penetrating the placing groove is also formed in the sliding block, the cross section of the bottom groove is circular, a rounded corner is arranged at one end of the bottom groove close to the placing groove, both ends of the bottom groove are penetrated, a flange is arranged on the upper end of the bottom groove, and the bottom groove is penetrated by the waste discharge groove on the mounting table.
4. The bolt forming apparatus of claim 3 wherein, The power part comprises a hydraulic device, the hydraulic device is arranged in the interior of the mounting table, one side of the sliding block is provided with a fixing plate, and the output end of the hydraulic device is connected with the fixing plate.
5. The bolt forming apparatus of claim 4 wherein, The discharging part comprises a baffle, a reverse V-shaped missing groove is formed in the baffle, two guide rods are arranged at one side of the baffle, two sink grooves are respectively formed in the forming die and located at both sides of the forming groove, a through hole is formed in the bottom of each sink groove, the guide rods are in sliding connection with the forming die through the through holes, the inner diameter of the sink groove is greater than the outer diameter of the guide rod, a limiting block is arranged at the upper end of the guide rod, a spring is sleeved on the guide rod, and the spring is located between the sink groove and the baffle.