Thread machining device for stud

Abstract

The invention relates to the field of thread cutting, in particular to a thread machining device for a stud. The technical problems that due to the fact that an existing thread rolling machine cannot conveniently conduct thread rolling on the two ends of a workpiece at the same time, the working efficiency is low, the workpiece cannot be conveniently aligned before thread rolling, the workpiece is prone to deviation in the thread rolling process, the thread rolling precision is low, and the thread rolling effect is poor are solved. A thread machining device for a stud comprises a bottom frame, two mounting frames are fixedly connected to the bottom frame, side plates are fixedly connected to the two mounting frames, and guide rails are fixedly connected to the two mounting frames. The two electric thread rolling machines of each set move in the direction close to each other, the electric thread rolling machines drive the racks to move, the racks drive the gears to rotate, the material moving disc rotates the lowermost workpiece to move to the position between the electric thread rolling machines, the electric thread rolling machines conduct thread rolling on the two ends of the workpiece correspondingly, and thread rolling can be conveniently conducted on the two ends of the workpiece at the same time; the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of thread cutting, in particular to a thread processing device for a stud bolt. Background Art

[0002] Stud bolts, also known as double-headed screws or double-headed studs, are a type of fixed connector used to connect machinery. Their structural characteristics are that they have threads on both ends and a screw in the middle. When cutting the threads of stud bolts, the most commonly used method is thread rolling, which uses a thread rolling machine with high pressure to extrude and roll the workpiece, and then forms threads on the surface of the workpiece through extrusion. The thread rolling method is suitable for mass production and has low processing costs.

[0003] When using an existing thread rolling machine to process double-start threads, workers generally roll threads on one end of the workpiece first, then take out the workpiece and repeat the above operation to process threads on the other end of the workpiece. It is not convenient to roll threads on both ends of the workpiece at the same time, so the work efficiency is low. It is also inconvenient to align the workpiece before rolling, and the position of the workpiece may deviate. The workpiece is prone to left and right deviation during thread rolling, which leads to low thread rolling accuracy and poor thread rolling effect. Summary of the invention

[0004] In order to overcome the shortcomings of the existing thread rolling machines, such as it is not convenient to roll the two ends of the workpiece at the same time when rolling the thread, the workpiece is not convenient to align before rolling the thread, and the workpiece is prone to left and right deviation during thread rolling, which leads to low thread rolling accuracy and poor thread rolling effect, the present invention provides a thread processing device for stud bolts that can conveniently roll the two ends of the workpiece at the same time, improve work efficiency, and can conveniently align the workpiece before rolling the thread, and can limit the two ends of the workpiece during thread rolling, thereby improving the thread rolling accuracy and enhancing the thread rolling effect.

[0005] The technical solution of the present invention is: a thread processing device for stud bolts, comprising a base frame, two mounting frames and a feeding mechanism are fixedly connected to the base frame, wherein:

[0006] The mounting frame is provided with a thread rolling mechanism, the feeding mechanism is arranged between two mounting frames, and the feeding mechanism is used to deliver the workpiece to be processed to the thread rolling station of the thread rolling mechanism;

[0007] The top and bottom of the mounting frame are both open structures, and guide rails are fixedly connected to the two mounting frames. Slide blocks are slidably connected to the two guide rails. Coolant spray valves are fixedly connected to the two slide blocks, and the sliding direction of the slide blocks on the guide rails is parallel to the workpiece located in the thread rolling station.

[0008] Optionally, the thread rolling mechanism includes a mounting seat, wherein:

[0009] Two electric thread rolling machines are slidably connected to each mounting frame, so that the electric thread rolling machines can slide close to each other and thus press the workpiece located in the thread rolling station;

[0010] Each mounting frame is fixedly connected with a mounting seat, and a hydraulic push rod is fixedly connected to the mounting seat. The telescopic rod of the hydraulic push rod is fixedly connected with the corresponding electric thread rolling machine and is used to push the electric thread rolling machine to slide on the mounting frame.

[0011] Optionally, the thread directions of two electric thread rolling machines on the same mounting frame are the same.

[0012] Optionally, the feeding mechanism includes a fixed frame, wherein:

[0013] The fixed frame is fixedly connected between the two mounting frames, the storage frame is fixedly connected to the fixed frame, and the material transfer tray is also rotatably connected to the fixed frame;

[0014] A placement slot is provided on the storage rack, a discharge port is provided at the bottom of the storage rack, a material transfer tray is slidably connected to the storage rack and is located between the placement slot and the discharge port, a material transfer slot is provided on the material transfer tray, and the material transfer slot is aligned with the placement slot, so that when the material transfer tray rotates, the material transfer slot can transfer the workpiece in the placement slot to the thread rolling station, and after the thread rolling is completed, the workpiece is transferred to the discharge port.

[0015] Optionally, a transmission assembly is further provided on the material transfer plate, and the transmission assembly includes an overrunning clutch, wherein:

[0016] The overrunning clutch is coaxially fixed to the material transfer plate, and gears are fixed to the outer ring of the overrunning clutch. A rack is fixed to the electric thread rolling machine close to the material transfer plate. The two racks are respectively engaged with the two gears. When the electric thread rolling machine slides and clamps the thread rolling station, the material transfer plate is synchronously driven to rotate through the transmission assembly to transfer the workpiece to the thread rolling station.

[0017] Optionally, the mounting rack is provided with side plates, the two side plates are arranged opposite to each other, and the side plates are provided with alignment mechanisms, which are used to align the workpieces in the storage rack placement slots before thread rolling, wherein:

[0018] The alignment mechanism includes a guide column, which is slidably connected to the side plate and is arranged pointing to the storage rack. A push plate is fixedly connected to one end of the guide column pointing to the storage rack, and a plurality of ball bearings are embedded and connected on each push plate.

[0019] A servo motor is fixedly connected to the side plate, and a threaded rod one is rotatably connected between the two side plates. One end of the threaded rod one is drivingly connected to the output shaft of the servo motor. Two groups of threads in opposite directions are provided on the threaded rod one, and the setting positions of the two groups of threads correspond to the two thread rolling stations respectively. The two pusher plates are threadedly connected to the two groups of threads on the threaded rod one respectively.

[0020] Optionally, the lower parts of the two push plates are fixedly connected to the two sliding blocks respectively.

[0021] Optionally, a limiting mechanism is further provided on the mounting frame, and the limiting mechanism is used to limit the two ends of the workpiece during thread rolling, and the limiting mechanism includes a sliding frame, wherein:

[0022] The two mounting frames are both slidably connected with sliding frames, the upper parts of the two sliding frames are both fixedly connected with threaded sleeves, the two threaded sleeves are both threadedly connected with threaded rods 2, the two threaded rods 2 are arranged at the outer end positions of the thread rolling station, and the ends pointing to the thread rolling station are both embedded with balls 2, so that when the two threaded rods 2 are close to each other, they can abut against the two ends of the workpiece located in the thread rolling station, and rotate and match with the corresponding workpiece through the balls 2;

[0023] The mounting frame is provided with an extrusion assembly for controlling the relative approach and relative separation of the two threaded rods.

[0024] Optionally, the extrusion assembly includes a slot frame, and the two mounting frames are both slidably connected to the slot frame, wherein:

[0025] The two slot frames are fixedly connected to the corresponding electric thread rolling machines, and the two slot frames are both provided with oblique slots. The bottoms of the two sliding frames are both fixedly connected with contact shafts, and the lower ends of the two contact shafts are respectively located in the oblique slots of the two slot frames;

[0026] When the electric thread rolling machine slides and clamps the thread rolling station, the two slot frames move synchronously, and the contact shaft can be driven to move through the inclined grooves of the slot frames, thereby controlling the sliding frames to approach each other.

[0027] Optionally, a material guide frame is fixedly connected to the top of the base frame, the material guide frame is located below the discharge port, and an inclined surface is provided on the material guide frame.

[0028] 2. The output shaft of the servo motor drives the threaded rod to rotate. Under the action of the two sets of threads in opposite directions on the threaded rod, the two pusher plates will move towards each other, and the guide column and the ball will move with the pusher plates. The two pusher plates move towards each other and contact the two sides of the workpiece respectively, and push the workpiece to the center, which can facilitate the alignment of the workpiece before rolling, improve the accuracy of rolling, and enhance the rolling effect.

[0029] 3. Two of the electric thread rolling machines drive the two slot frames to move, and the inclined slots on the slot frames squeeze the contact shafts, so that the two contact shafts move towards each other, and the two contact shafts drive the two sliding frames to move towards each other, and the two sliding frames drive the two threaded sleeves to move towards each other, and the two threaded sleeves drive the two threaded rods 2 and the two ball bearings 2 to move towards each other, and the two threaded rods 2 respectively resist the two ends of the workpiece, which can limit the two ends of the workpiece during thread rolling, further improve the accuracy of thread rolling, and further enhance the thread rolling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0031] Figure 2 It is a schematic cross-sectional three-dimensional structural diagram of the thread rolling mechanism and the feeding mechanism of the present invention.

[0032] Figure 3 It is a schematic diagram of the split three-dimensional structure of the thread rolling mechanism and the feeding mechanism of the present invention.

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the material feeding mechanism and the material guiding frame of the present invention.

[0034] Figure 5 It is a schematic diagram of the split three-dimensional structure of the base frame, the mounting frame and the side panels of the present invention.

[0035] Figure 6 It is a schematic diagram of the three-dimensional structure of the alignment mechanism of the present invention.

[0036] Figure 7 It is a schematic diagram of the disassembled three-dimensional structure of the guide rail, the slider and the coolant spray valve of the present invention.

[0037] Figure 8 It is a three-dimensional structural schematic diagram of the thread rolling mechanism and the limiting mechanism of the present invention.

[0038] Fig. 9 It is a schematic diagram of the split three-dimensional structure of the limiting mechanism of the present invention.

[0039] Fig.10 It is a schematic diagram of the disassembled three-dimensional structure of the guide column, the push plate and the ball bearing of the present invention.

[0040] Markings in the figure are: 1-base frame, 2-mounting frame, 3-side plate, 4-guide rail, 5-slider, 6-coolant spray valve, 71-mounting seat, 72-hydraulic push rod, 73-electric thread rolling machine, 81-fixed frame, 82-storage frame, 83-transfer plate, 84-overrunning clutch, 85-gear, 86-rack, 87-workpiece, 91-guide column, 92-push plate, 93-ball one, 94-servo motor, 95-threaded rod one, 101-sliding frame, 102-threaded sleeve, 103-threaded rod two, 104-ball two, 105-groove frame, 106-contact shaft, 11-guide frame. DETAILED DESCRIPTION

[0041] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0042] Embodiment 1: A thread processing device for stud bolts, such as Figure 1-Figure 8 As shown, it includes a base frame 1, two mounting frames 2 are welded on the top of the base frame 1, the two mounting frames 2 are symmetrically arranged, the top and bottom of the mounting frames 2 are both open, the tops of the two mounting frames 2 are welded with side panels 3, the open parts of the tops of the two mounting frames 2 are connected with guide rails 4 by bolts, the two guide rails 4 are slidably connected with sliders 5, the two sliders 5 are fixedly connected with coolant spray valves 6, the coolant spray valves 6 are used to control the spraying of coolant, the outlet of the coolant spray valve 6 is vertically downward, a thread rolling mechanism is provided on the mounting frame 2, a feeding mechanism is provided on the mounting frame 2, a plurality of workpieces 87 are placed on the feeding mechanism, the thread rolling mechanism is used to roll the two ends of the workpiece 87 at the same time, and the feeding mechanism is used to feed and discharge the workpiece 87.

[0043] The thread rolling mechanism includes a mounting seat 71, and each mounting frame 2 is connected with two groups of mounting seats 71 by bolts. The number of each group of mounting seats 71 is two, and the two mounting seats 71 in the same group are symmetrically arranged. A hydraulic push rod 72 is fixedly connected to each mounting seat 71, and the number of hydraulic push rods 72 is eight. Two electric thread rolling machines 73 are slidably connected to each mounting frame 2, and the two electric thread rolling machines 73 on the same mounting frame 2 are symmetrically arranged. The telescopic rods of the two hydraulic push rods 72 in the same group are fixedly connected to one of the electric thread rolling machines 73, and the hydraulic push rod 72 drives the electric thread rolling machine 73 to move, thereby extruding and rolling the workpiece 87.

[0044] The thread directions of the two electric thread rolling machines 73 on the same mounting frame 2 are the same.

[0045] The feeding mechanism includes a fixed frame 81, a fixed frame 81 is welded between two mounting frames 2, a storage frame 82 is fixedly connected to the fixed frame 81, the storage frame 82 is used to place workpieces 87, a placement groove is provided on the storage frame 82, a discharge port is provided at the bottom of the storage frame 82, a material transfer tray 83 is slidably connected to the lower part of the storage frame 82, the material transfer tray 83 is rotatably connected to the fixed frame 81, four material transfer grooves are provided on the material transfer tray 83, the four material transfer grooves on the material transfer tray 83 are evenly spaced, the uppermost material transfer groove of the material transfer tray 83 is aligned with the placement groove of the storage frame 82, the lowermost workpiece 87 is located in the uppermost material transfer groove of the material transfer tray 83, the material transfer tray 83 is used to move the workpiece 87 from the storage frame 82 to the thread rolling position, and a transmission assembly is provided on the material transfer tray 83.

[0046] The transmission assembly includes an overrunning clutch 84. Two overrunning clutches 84 are fixedly connected to the material transfer plate 83. The two overrunning clutches 84 are symmetrically arranged. Gears 85 are fixedly connected to the outer rings of the two overrunning clutches 84. Racks 86 are fixedly connected to two electric thread rolling machines 73 close to the material transfer plate 83. The two racks 86 are respectively engaged with the two gears 85. The two electric thread rolling machines 73 drive the two gears 85 to rotate through the two racks 86, and then drive the material transfer plate 83 to rotate through the two overrunning clutches 84.

[0047] Initially, the liquid inlet of the coolant spray valve 6 is connected to the coolant supply system, the coolant spray valve 6 is in a closed state, the four electric thread rolling machines 73 are in a closed state and are all located on one side of the mounting frame 2, the staff puts a number of workpieces 87 into the placement slots of the storage rack 82 one by one, so that the workpieces 87 are stacked in a row, and the bottom workpiece 87 is located in a transfer slot at the top of the transfer tray 83, the transfer tray 83 and the storage rack 82 limit the workpiece 87, after the workpiece 87 is placed, the staff opens the coolant spray valve 6, and the coolant flows downward from the outlet of the coolant spray valve 6, so that the workpiece 87 and the roller body of the electric thread rolling machine 73 can be cooled down during subsequent thread rolling. After cooling, the staff starts all the electric thread rolling machines 73, so that the rollers of the two electric thread rolling machines 73 on the same mounting frame 2 rotate at the same speed and in the same direction. Then the staff controls the telescopic rod of the hydraulic push rod 72 to extend, so that the two electric thread rolling machines 73 in each group move towards each other, wherein the horizontal movement of the two electric thread rolling machines 73 drives the two racks 86 to move horizontally, and the horizontal movement of the two racks 86 drives the two gears 85 to rotate. Under the action of the overrunning clutch 84, the four material transfer grooves on the material transfer plate 83 will rotate 90 degrees, and the uppermost material transfer groove of the material transfer plate 83 will move the lowermost workpiece 87 to between the four electric thread rolling machines 73, and the material transfer plate 83 The next material transfer trough will rotate to a position aligned with the storage rack 82 placement slot, and the remaining workpieces 87 in the storage rack 82 placement slot are all moved downward by a distance of one workpiece 87, and the lowest workpiece 87 in the storage rack 82 placement slot enters the next material transfer trough of the material transfer plate 83, and the rack 86 continues to move horizontally and disengages from the gear 85, and the two groups of electric thread rolling machines 73 continue to move to roll the threads on both ends of the workpiece 87 respectively. Through the above operation, it is convenient to roll the threads on both ends of the workpiece 87 at the same time, thereby improving work efficiency. After the thread rolling is completed, the staff controls the telescopic rod of the hydraulic push rod 72 to retract, so that the two electric thread rolling machines 73 of each group move in a direction away from each other, and the two electric thread rolling machines 73 of each group move in a direction away from each other. The two electric thread rolling machines 73 move in the opposite direction, driving the two racks 86 to move in the opposite direction. The two racks 86 move in the opposite direction and mesh with the two gears 85 respectively, and drive the two gears 85 to rotate in the opposite direction. Under the action of the overrunning clutch 84, the material transfer plate 83 will not rotate. Then the staff repeats the above operation and rolls the workpieces 87 one by one. When the material transfer plate 83 rotates next time, the last workpiece 87 that has been rolled will rotate to the discharge port of the storage rack 82. Under the action of gravity, the last workpiece 87 that has been rolled will fall downward to complete the discharge. After all workpieces 87 are processed, the staff closes the coolant spray valve 6 and all electric thread rolling machines 73 to facilitate the next work.

[0048] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 4 , Figure 6 and Figure 8-Figure 10As shown, an alignment mechanism is also included. The side plate 3 is provided with an alignment mechanism, which is used to align the workpiece 87 before thread rolling. The alignment mechanism includes a guide column 91. Four guide columns 91 are slidably connected to each side plate 3. The four guide columns 91 on the same side plate 3 are evenly spaced. Pusher plates 92 are connected between the four guide columns 91 on the same side plate 3 by bolts. Each pusher plate 92 is embedded with a plurality of ball bearings 93. The ball bearings 93 are used to reduce the friction between the workpiece 87 and the pusher plate 92. The same pusher plate 92 Several ball bearings 93 on the side plate are evenly spaced, a servo motor 94 is connected to one of the side plates 3 by bolts, a threaded rod 95 is rotatably connected between the two side plates 3, one end of the threaded rod 95 is fixedly connected to the output shaft of the servo motor 94, the threaded rod 95 is provided with two groups of threads in opposite directions, the two groups of threads on the threaded rod 95 are symmetrically arranged, the two push plates 92 are both connected to the threaded rod 95 by threads, the servo motor 94 drives the threaded rod 95 to rotate by rotating, and then drives the two push plates 92 to move towards or away from each other.

[0049] The lower parts of the two push plates 92 are respectively fixedly connected to the two sliders 5 , and the push plates 92 drive the coolant spray valve 6 to move through the sliders 5 , thereby enabling the coolant spray valve 6 to spray the coolant more accurately.

[0050] It also includes a limiting mechanism. The mounting frame 2 is provided with a limiting mechanism, which is used to limit the two ends of the workpiece 87 during thread rolling. The limiting mechanism includes a sliding frame 101. The two mounting frames 2 are both slidably connected with the sliding frames 101. The two sliding frames 101 are symmetrically arranged. The upper parts of the two sliding frames 101 are fixedly connected with threaded sleeves 102. The two threaded sleeves 102 are both threadedly connected with threaded rods 103. One end of the two threaded rods 103 is embedded with ball bearings 104. The sliding frame 101 drives the threaded rods 103 to move through the threaded sleeves 102, thereby driving the ball bearings 104 to move. An extrusion component is provided on the mounting frame 2.

[0051] The extrusion assembly includes a slot frame 105, and the slot frames 105 are slidably connected to the two mounting frames 2. The two slot frames 105 are respectively connected to two of the electric thread rolling machines 73 away from the material transfer plate 83 by bolts. The two slot frames 105 are each provided with an inclined groove. The bottom of the two sliding frames 101 are fixedly connected with a contact shaft 106, and the lower ends of the two contact shafts 106 are respectively located in the inclined grooves of the two slot frames 105. The two electric thread rolling machines 73 extrude the two contact shafts 106 by driving the two slot frames 105 to move, thereby driving the two sliding frames 101 to move.

[0052] It also includes a guide rack 11. The top of the base frame 1 is fixedly connected with the guide rack 11. The guide rack 11 is located below the discharge port of the storage rack 82. The guide rack 11 is provided with an inclined surface, which is used to guide the discharged workpiece 87.

[0053] After all the workpieces 87 are placed in the placement slots of the storage rack 82, the staff starts the servo motor 94. The output shaft of the servo motor 94 rotates to drive the threaded rod 95 to rotate. Under the action of the two sets of opposite threads on the threaded rod 95, the two push plates 92 will move in a direction close to each other, and the guide column 91 and the ball 93 will move with the push plates 92. The two push plates 92 move in a direction close to each other and contact the two sides of the workpiece 87 respectively, and push the workpiece 87 to the center. Through the above operation, the workpiece 87 can be easily aligned before thread rolling, the accuracy of thread rolling can be improved, and the thread rolling effect can be enhanced. The ball 93 can reduce the friction between the workpiece 87 and the push plate 92, so that the workpiece 87 can be smoothly unloaded when unloading. The push plate 92 moves smoothly, the movement of the slider 5 drives the slider 5 to move synchronously, and the movement of the slider 5 drives the coolant spray valve 6 to move, so that the coolant spray valve 6 can spray the coolant to the rolling part of the workpiece 87 more accurately, thereby enhancing the cooling effect. After the work is completed, the staff adjusts the servo motor 94 to rotate in the opposite direction, and the output shaft of the servo motor 94 rotates in the opposite direction to drive the threaded rod 95 to rotate in the opposite direction. Under the action of two groups of opposite threads on the threaded rod 95, the two push plates 92 will move in the direction away from each other, and the guide column 91 and the ball 93 will move in the opposite direction and reset together with the push plate 92. The reverse movement of the push plate 92 drives the slider 5 to move in the opposite direction synchronously, and the reverse movement of the slider 5 drives the coolant spray valve 6 to move in the opposite direction and reset.

[0054] When rolling the thread, two of the electric thread rolling machines 73 move and drive the two slot frames 105 to move. The inclined slots on the slot frames 105 squeeze the contact shafts 106, so that the two contact shafts 106 move in a direction approaching each other. The two contact shafts 106 move in a direction approaching each other and drive the two sliding frames 101 to move in a direction approaching each other. The two sliding frames 101 move in a direction approaching each other and drive the two threaded sleeves 102 to move in a direction approaching each other. The two threaded sleeves 102 move in a direction approaching each other and drive the two threaded rods 103 and the two ball bearings 104 to move in a direction approaching each other. The two threaded rods 103 respectively press against the two ends of the workpiece 87. Through the above operation, the two ends of the workpiece 87 can be limited during thread rolling, thereby further improving the accuracy of thread rolling, further enhancing the thread rolling effect, and the thread rolling. After completion, two of the electric thread rolling machines 73 move in the opposite direction, driving the two slot frames 105 to move in the opposite direction. The inclined grooves on the slot frames 105 squeeze the contact shafts 106 in the opposite direction, causing the two contact shafts 106 to move in directions away from each other. The two contact shafts 106 move in directions away from each other, driving the two sliding frames 101 to move in directions away from each other. The two sliding frames 101 move in directions away from each other, driving the two threaded sleeves 102 to move in directions away from each other. The two threaded sleeves 102 move in directions away from each other, driving the two threaded rods 103 and the two ball bearings 104 to move in directions away from each other and reset. Before work, the staff can control the distance between the two threaded rods 103 by rotating the two threaded rods 103 to adapt to workpieces 87 of different lengths and improve adaptability.

[0055] After the workpiece 87 with the thread rolled falls from the discharge port of the storage rack 82, it contacts the guide rack 11. The inclined surface on the guide rack 11 guides the workpiece 87 with the thread rolled to the outside of the base frame 1 to prevent the workpiece 87 from piling up too much on the base frame 1 and affecting the discharge.

[0056] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A thread processing device for stud bolts, characterized in that: The invention comprises a base frame (1), on which two mounting frames (2) and a feeding mechanism are fixedly arranged, wherein: A thread rolling mechanism is provided on the mounting frame (2), and the feeding mechanism is arranged between two mounting frames (2), and the feeding mechanism is used to feed the workpiece (87) to be processed to the thread rolling station of the thread rolling mechanism; The top and bottom of the mounting frame (2) are both open structures, and the two mounting frames (2) are both fixedly connected with guide rails (4), and the two guide rails (4) are both slidably connected with sliders (5), and the two sliders (5) are both fixedly connected with coolant spray valves (6), and the sliding direction of the sliders (5) on the guide rails (4) is parallel to the workpiece (87) located in the thread rolling station.

2. A thread processing device for stud bolts as claimed in claim 1, characterized in that: The thread rolling mechanism includes a mounting seat (71), wherein: Two electric thread rolling machines (73) are slidably connected to each mounting frame (2), so that the electric thread rolling machines (73) can slide close to each other and thereby press the workpiece (87) located in the thread rolling station; Each mounting frame (2) is fixedly connected to a mounting seat (71), and a hydraulic push rod (72) is fixedly connected to the mounting seat (71). The telescopic rod of the hydraulic push rod (72) is fixedly connected to the corresponding electric thread rolling machine (73) and is used to push the electric thread rolling machine (73) to slide on the mounting frame (2).

3. A thread processing device for stud bolts as claimed in claim 2, characterized in that: The thread directions of the two electric thread rolling machines (73) on the same mounting frame (2) are the same.

4. A thread processing device for stud bolts as claimed in claim 2, characterized in that: The feeding mechanism comprises a fixed frame (81), wherein: The fixed frame (81) is fixedly connected between the two mounting frames (2), the storage frame (82) is fixedly connected to the fixed frame (81), and the material transfer tray (83) is also rotatably connected to the fixed frame (81); The storage rack (82) is provided with a placement slot, and the bottom of the storage rack (82) is provided with a discharge port. The material transfer plate (83) is slidably connected and arranged on the storage rack (82) and is located between the placement slot and the discharge port. The material transfer plate (83) is provided with a material transfer slot, and the material transfer slot is aligned with the placement slot, so that when the material transfer plate (83) rotates, the material transfer slot can transfer the workpiece (87) in the placement slot to the thread rolling station, and after the thread rolling is completed, the workpiece (87) is transferred to the discharge port.

5. A thread processing device for stud bolts as claimed in claim 4, characterized in that: The material transfer plate (83) is also provided with a transmission assembly, which includes an overrunning clutch (84), wherein: The overrunning clutch (84) is coaxially fixedly connected to the material transfer plate (83), and a gear (85) is fixedly connected to the outer ring of the overrunning clutch (84). A rack (86) is fixedly connected to the electric thread rolling machine (73) close to the material transfer plate (83). The two racks (86) are respectively meshed with the two gears (85). When the electric thread rolling machine (73) slides and clamps the thread rolling station, the material transfer plate (83) is synchronously driven to rotate through the transmission component to transfer the workpiece (87) to the thread rolling station.

6. A thread processing device for stud bolts as claimed in claim 5, characterized in that: The mounting frame (2) is provided with side plates (3), the side plates (3) are arranged opposite to each other, and the side plates (3) are provided with alignment mechanisms, which are used to align the workpieces (87) in the placement groove of the storage frame (82) before thread rolling, wherein: The alignment mechanism comprises a guide column (91), which is slidably connected to the side plate (3) and is arranged to point to the storage rack (82). One end of the guide column (91) pointing to the storage rack (82) is fixedly connected to a push plate (92), and each push plate (92) is embedded with a plurality of ball bearings (93); A servo motor (94) is fixedly connected to the side plate (3), and a threaded rod (95) is rotatably connected between the two side plates (3). One end of the threaded rod (95) is drivingly connected to the output shaft of the servo motor (94). The threaded rod (95) is provided with two groups of threads in opposite directions, and the positions of the two groups of threads correspond to the two thread rolling stations respectively. The two pusher plates (92) are respectively threadedly connected to the two groups of threads on the threaded rod (95).

7. A thread processing device for stud bolts as claimed in claim 6, characterized in that: The lower parts of the two push plates (92) are respectively fixedly connected to the two slide blocks (5).

8. A thread processing device for stud bolts as claimed in claim 6, characterized in that: A limiting mechanism is also provided on the mounting frame (2), and the limiting mechanism is used to limit the two ends of the workpiece (87) during thread rolling. The limiting mechanism includes a sliding frame (101), wherein: The two mounting frames (2) are both slidably connected to a sliding frame (101), the upper parts of the two sliding frames (101) are both fixedly connected to a threaded sleeve (102), the two threaded sleeves (102) are both threadedly connected to a second threaded rod (103), the two second threaded rods (103) are arranged at the outer end position of the thread rolling station, and one end pointing to the thread rolling station is embedded with a second ball (104), so that when the two second threaded rods (103) are close to each other, they can abut against the two ends of a workpiece (87) located in the thread rolling station, and rotate and match with the corresponding workpiece (87) through the second ball (104); The mounting frame (2) is provided with a squeezing assembly for controlling the relative approach and relative separation of the two threaded rods (103).

9. A thread processing device for stud bolts as claimed in claim 8, characterized in that: The extrusion assembly comprises a slot frame (105), and the two mounting frames (2) are both slidably connected to the slot frame (105), wherein: The two slot frames (105) are fixedly connected to the corresponding electric thread rolling machines (73), and the two slot frames (105) are both provided with oblique grooves. The bottoms of the two sliding frames (101) are both fixedly connected with contact shafts (106), and the lower ends of the two contact shafts (106) are respectively located in the oblique grooves of the two slot frames (105); When the electric thread rolling machine (73) slides and clamps the thread rolling station, the two slot frames (105) move synchronously, and the contact shaft (106) can be driven to move through the inclined grooves of the slot frames (105), thereby controlling the sliding frames (101) to approach each other.

10. A thread processing device for stud bolts as claimed in claim 4, characterized in that: A material guide frame (11) is fixedly connected to the top of the bottom frame (1), the material guide frame (11) is located below the material discharge port, and an inclined surface is provided on the material guide frame (11).

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