Thread rolling device for double-thread screw production

Abstract

The utility model belongs to the technical field of double-thread screw production and machining, and particularly relates to a thread rolling device for double-thread screw production, which comprises a workbench, two mounting frames are movably arranged at the top of the workbench, two vertical plates are fixedly arranged at the top of the workbench, two cylinders are fixedly arranged between the vertical plates and the mounting frames, and the two cylinders are fixedly arranged on the workbench. When thread rolling rollers of different specifications are replaced, the baffles are rotated to be separated from the clamping strips, then the connecting plates are pulled outwards, the connecting plates drive the first rotating shafts to move, the first rotating shafts drive the inserting plates, and when the connecting plates are separated from the vertical plates and the inserting plates are separated from the inserting grooves, the pressing plates are rotated anticlockwise to be separated from the first rotating shafts, so that the thread rolling rollers of different specifications are replaced. In the same way, a pressing plate on the second rotating shaft is taken down, the thread rolling roller can be taken down and replaced, rapid separation of the two rotating shafts can be achieved through the arrangement of an inserting groove, an inserting plate, a baffle clamping groove and a clamping strip, and rapid replacement of the thread rolling roller is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of double-headed screws, in particular to a thread rolling device for producing double-headed screws. Background Art

[0002] The double-headed screw has threads at both ends, and the processing process is similar to that of normal bolts, and both ends need to be rolled. Since the existing rolling equipment cannot roll both ends of the screw at the same time, after rolling one end, it needs to be manually removed to process the other end. This is not only inefficient, but also unstable feeding affects the processing quality. Therefore, patent number CN220161209U discloses "a rolling device for double-headed screw production", which transports the screw between two rolling mechanisms through a lifting mechanism, and makes the rolling ends of the two rolling mechanisms contact the screw respectively through a pushing mechanism, and rolls both ends of the screw at the same time, which not only improves the efficiency of rolling, but also ensures the stability of feeding after the rolling mechanism is placed on the screw placement position, instead of manually transporting the screw to the rolling mechanism.

[0003] However, the thread rolling roller and the rotating shaft in this solution are fixed, and the thread rolling roller cannot be quickly replaced when it is necessary to roll threads with different spacings. In addition, this solution does not have a cooling component. The high temperature during thread rolling will destroy the lubricating film between the thread rolling wheel and the threaded rod, causing adhesive wear between the two. Adhesive wear will damage the surface of the thread rolling wheel and the threaded rod, affecting the accuracy and surface quality of the thread. Therefore, a thread rolling device for double-head screw production is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a thread rolling device for producing double-headed screws.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thread rolling device for double-head screw production, comprising a workbench, two mounting brackets movably provided on the top of the workbench, two vertical plates fixedly provided on the top of the workbench, two cylinders fixedly provided between the vertical plates and the mounting brackets, a connecting plate movably provided on one side of the two mounting brackets, a first rotating shaft and a second rotating shaft movably provided on the side where the connecting plate and the mounting bracket are close, the first rotating shaft and the second rotating shaft are movably connected, a retaining ring and a clamping plate are both provided on the first rotating shaft and the second rotating shaft, a thread rolling roller is movably provided on the first rotating shaft and the second rotating shaft, a slide groove and a plurality of positioning holes are provided on the bottom of the workbench, and a cooling assembly is provided on the bottom of the workbench.

[0006] As a further description of the above technical solution:

[0007] Two card slots are provided on the front inner wall of the mounting frame, and two card strips are fixedly provided on the back of the connecting plate. The card slots and the card strips are adapted to each other. A positioning shaft is fixed on one side of the mounting frame, and a baffle is movably provided on the positioning shaft.

[0008] As a further description of the above technical solution:

[0009] An inserting plate and a slot are respectively provided on the side where the first rotating shaft and the second rotating shaft are close to each other, and the slot and the inserting plate are adapted to each other.

[0010] As a further description of the above technical solution:

[0011] Four supporting legs arranged in a rectangular shape are fixedly provided on the bottom of the workbench, and anti-slip pads are fixedly provided on the bottoms of the four supporting legs.

[0012] As a further description of the above technical solution:

[0013] A circular hole is provided on the baffle, a bearing is fixedly provided in the circular hole, and an inner ring of the bearing is fixedly sleeved on the positioning shaft.

[0014] As a further description of the above technical solution:

[0015] The cooling assembly includes an oil guide plate movably connected to the bottom of the workbench, an oil collecting box fixedly connected to the bottom of the workbench, and an oil pump fixedly connected to the workbench. The suction end of the oil pump is provided with an oil suction pipe, one end of the oil suction pipe passes through the front inner wall of the oil collecting box and extends into the oil collecting box. The discharge end of the oil pump is fixedly provided with a stainless steel bellows.

[0016] As a further description of the above technical solution:

[0017] Connecting frames are fixed on both sides of the oil guide plate, a slider is fixed on the top of the connecting frame, a limiting plate is fixed on one side of the slider, and a positioning bolt is movably provided on the limiting plate, and the positioning bolt is adapted to the positioning hole.

[0018] The utility model has the following beneficial effects:

[0019] 1. Compared with the prior art, the thread rolling device for double-headed screw production, when replacing thread rolling rollers of different specifications, rotate the baffle to disengage it from the card strip, then pull the connecting plate outward, the connecting plate drives the first rotating shaft to move, and the first rotating shaft drives the insert plate. When the connecting plate is separated from the vertical plate and the insert plate is separated from the slot, rotate the clamping plate counterclockwise to disengage it from the first rotating shaft, and then pull the thread rolling roller outward to remove it and replace it. Similarly, remove the clamping plate on the second rotating shaft to remove the thread rolling roller and replace it. The arrangement of the slot, insert plate, baffle slot and card strip can realize the rapid separation of the two rotating shafts, which is convenient for the rapid replacement of the thread rolling roller.

[0020] 2. Compared with the existing technology, the thread rolling device for double-head screw production is equipped with an oil collecting box, an oil pump, an oil guide plate, a connecting frame and a stainless steel bellows. The cooling lubricating liquid is introduced into the oil collecting box before thread rolling, and then the oil pump and the equipment are started. During thread rolling, the oil pump sucks out the lubricating liquid in the oil collecting box and sprays it on the junction of the thread rolling roller and the threaded rod through the stainless steel bellows to achieve the purpose of cooling. It can effectively prevent the high temperature of thread rolling from destroying the lubricating film between the thread rolling wheel and the threaded rod, resulting in adhesive wear between the two, affecting the accuracy and surface quality of the thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the first-view stereoscopic structure of a thread rolling device for producing double-headed screws proposed in the present invention;

[0022] Figure 2 This is a schematic diagram of the third perspective structure of a thread rolling device for producing a double-headed screw proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of a connecting plate in a thread rolling device for producing a double-start screw proposed in the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the first rotating shaft in a thread rolling device for producing a double-start screw proposed in the present invention;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the second rotating shaft in a thread rolling device for producing a double-start screw proposed in the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of a cooling assembly in a thread rolling device for producing double-headed screws proposed by the present invention.

[0027] Legend:

[0028] 1. Workbench; 2. Mounting frame; 3. Vertical plate; 4. Connecting plate; 5. Card bar; 6. Positioning shaft; 7. Baffle; 8. First rotating shaft; 9. Second rotating shaft; 10. Insert plate; 11. Slot; 12. Retaining ring; 13. Pressure plate; 14. Thread rolling roller; 15. Cylinder; 16. Slide; 17. Positioning hole; 18. Cooling assembly; 181. Oil collecting box; 182. Oil pump; 183. Oil guide plate; 184. Connecting frame; 185. Slider; 186. Limit plate; 187. Positioning bolt; 188. Stainless steel bellows. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figures 1 to 6 The utility model provides a thread rolling device for double-head screw production: it includes a workbench 1, the bottom of the workbench 1 is fixedly provided with four supporting legs arranged in a rectangular shape, the bottoms of the four supporting legs are fixed with anti-slip pads, two mounting brackets 2 are movably provided on the top of the workbench 1, two vertical plates 3 are fixedly provided on the top of the workbench 1, two cylinders 15 are fixedly provided between the vertical plates 3 and the mounting brackets 2, one side of the two mounting brackets 2 is movably provided with a connecting plate 4, the side where the connecting plate 4 and the mounting bracket 2 are close is respectively movably provided with a first rotating shaft 8 and a second rotating shaft 9, the first rotating shaft 8 and the second rotating shaft 9 are movably connected, a retaining ring 12 and a pressing plate 13 are both provided on the first rotating shaft 8 and the second rotating shaft 9, a thread rolling roller 14 is movably provided on the first rotating shaft 8 and the second rotating shaft 9, a slide groove 16 and a plurality of positioning holes 17 are provided on the bottom of the workbench 1, and a cooling component 18 is provided at the bottom of the workbench 1;

[0031] In order to achieve the purpose of separating the rotating shafts, two card slots are provided on the inner wall of the front side of the mounting frame 2, and two card strips 5 are fixed on the back side of the connecting plate 4. The card slots and the card strips 5 are adapted to each other. A positioning shaft 6 is fixed on one side of the mounting frame 2, and a baffle 7 is movably provided on the positioning shaft 6. A round hole is provided on the baffle 7, and a bearing is fixed in the round hole. The inner ring of the bearing is fixedly sleeved on the positioning shaft 6. An inserting plate 10 and a slot 11 are respectively provided on the side close to the first rotating shaft 8 and the second rotating shaft 9. The slot 11 and the inserting plate 10 are adapted. Rotate the baffle 7 to disengage it from the card strip 5, and the connecting plate 4 is pulled outward, the connecting plate 4 drives the first rotating shaft 8 to move, and the first rotating shaft 8 drives the inserting plate 10. When the connecting plate 4 is separated from the vertical plate 3 and the inserting plate 10 is separated from the slot 11, the pressing plate 13 is rotated counterclockwise to disengage it from the first rotating shaft 8, and then the thread rolling roller 14 can be pulled outward to be removed and replaced. Similarly, the pressing plate 13 on the second rotating shaft 9 can be removed to remove and replace the thread rolling roller 14. The arrangement of the slot 11, the inserting plate 10, the baffle 7 slot and the card strip 5 can realize the rapid separation of the two rotating shafts, which is convenient for the rapid replacement of the thread rolling roller 14.

[0032] In order to achieve the purpose of cooling, the cooling assembly 18 includes an oil guide plate 183 movably connected to the bottom of the workbench 1, an oil collecting box 181 fixedly connected to the bottom of the workbench 1 and an oil pump 182 fixedly connected to the workbench 1. Both sides of the oil guide plate 183 are fixed with a connecting frame 184, a slider 185 is fixed on the top of the connecting frame 184, and a limit plate 186 is fixed on one side of the slider 185. A positioning bolt 187 is movably provided on the limit plate 186. The positioning bolt 187 is adapted to the positioning hole 17. An oil suction pipe is provided at the suction end of the oil pump 182, and one end of the oil suction pipe passes through the oil collecting box. The front inner wall of the box 181 extends into the oil collecting box 181, and a stainless steel bellows 188 is fixed to the discharge end of the oil pump 182. The cooling lubricating liquid is introduced into the oil collecting box 181 before thread rolling, and then the oil pump 182 and the equipment are started. During thread rolling, the oil pump 182 sucks out the lubricating liquid in the oil collecting box 181 and sprays it on the junction of the thread rolling roller 14 and the threaded rod through the stainless steel bellows 188 to achieve the purpose of cooling. It can effectively prevent the high temperature of thread rolling from destroying the lubricating film between the thread rolling wheel and the threaded rod, resulting in adhesive wear between the two, affecting the accuracy and surface quality of the thread.

[0033] Working principle: When the thread rolling roller 14 needs to be replaced, first rotate the baffle 7 ninety degrees counterclockwise to disengage it from the card strip 5, then pull the connecting plate 4 outward, the connecting plate 4 drives the first rotating shaft 8 to move, and the first rotating shaft 8 drives the inserting plate 10. When the connecting plate 4 is separated from the vertical plate 3 and the inserting plate 10 is separated from the slot 11, rotate the clamping plate 13 counterclockwise to disengage it from the first rotating shaft 8, and then pull the thread rolling roller 14 outward to remove it and replace it. Similarly, remove the clamping plate 13 on the second rotating shaft 9, and then remove the thread rolling roller 14 and replace it. The arrangement of the slot 11, the inserting plate 10, the baffle 7 slot and the card strip 5 can realize the rapid replacement of the two rotating shafts. Separation makes it convenient to remove and replace the two rolling rollers 14. Before rolling, the cooling lubricant is introduced into the oil collecting box 181, and then the oil pump 182 and the equipment are started. During the rolling process, the oil pump 182 sucks the lubricating liquid out of the oil collecting box 181 and sprays it on the junction of the rolling roller 14 and the threaded rod through the stainless steel bellows 188 to achieve the purpose of cooling. The sprayed oil falls onto the oil guide plate 183 through the through groove on the workbench 1, and finally flows into the oil collecting box 181, so that the lubricating oil can be recycled. The setting of the slider 185 and the positioning bolt 187 can make the oil guide plate 183 adjusted according to the diameter of the threaded rod to be processed to prevent the lubricant from dripping.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A thread rolling device for producing a double-headed screw, comprising a workbench (1), characterized in that: The top of the workbench (1) is movably provided with two mounting frames (2), the top of the workbench (1) is fixedly provided with two vertical plates (3), two cylinders (15) are fixedly provided between the vertical plates (3) and the mounting frames (2), one side of each of the two mounting frames (2) is movably provided with a connecting plate (4), the side of the connecting plate (4) and the mounting frame (2) close to each other is movably provided with a first rotating shaft (8) and a second rotating shaft (9), the first rotating shaft (8) and the second rotating shaft (9) are movably connected, the first rotating shaft (8) and the second rotating shaft (9) are both provided with a retaining ring (12) and a pressing plate (13), the first rotating shaft (8) and the second rotating shaft (9) are both movably provided with a thread rolling roller (14), the bottom of the workbench (1) is provided with a slide groove (16) and a plurality of positioning holes (17), and the bottom of the workbench (1) is provided with a cooling assembly (18).

2. A thread rolling device for producing double-start screw rods according to claim 1, characterized in that: Two card slots are provided on the front inner wall of the mounting frame (2), two card strips (5) are fixedly provided on the back of the connecting plate (4), the card slots and the card strips (5) are adapted to each other, a positioning shaft (6) is fixedly provided on one side of the mounting frame (2), and a baffle (7) is movably provided on the positioning shaft (6).

3. The thread rolling device for producing a double-start screw according to claim 1, characterized in that: An inserting plate (10) and a slot (11) are respectively provided on the side where the first rotating shaft (8) and the second rotating shaft (9) are close to each other, and the slot (11) and the inserting plate (10) are adapted to each other.

4. A thread rolling device for producing double-start screw rods according to claim 1, characterized in that: Four supporting legs arranged in a rectangular shape are fixedly provided at the bottom of the workbench (1), and anti-slip pads are fixedly provided at the bottoms of the four supporting legs.

5. The thread rolling device for producing a double-start screw according to claim 2, characterized in that: A circular hole is provided on the baffle (7), a bearing is fixedly provided in the circular hole, and the inner ring of the bearing is fixedly sleeved on the positioning shaft (6).

6. The thread rolling device for producing a double-start screw according to claim 1, characterized in that: The cooling assembly (18) includes an oil guide plate (183) movably connected to the bottom of the workbench (1), an oil collecting box (181) fixedly connected to the bottom of the workbench (1), and an oil pump (182) fixedly connected to the workbench (1). The suction end of the oil pump (182) is provided with an oil suction pipe, one end of which passes through the front inner wall of the oil collecting box (181) and extends into the oil collecting box (181). The discharge end of the oil pump (182) is fixedly provided with a stainless steel bellows (188).

7. A thread rolling device for producing double-start screw rods according to claim 6, characterized in that: Connecting frames (184) are fixedly provided on both sides of the oil guide plate (183), a slider (185) is fixedly provided on the top of the connecting frame (184), a limiting plate (186) is fixedly provided on one side of the slider (185), and a positioning bolt (187) is movably provided on the limiting plate (186), and the positioning bolt (187) is adapted to the positioning hole (17).

Images