Thread rolling machine for rough machining of bolt

Abstract

The utility model relates to the technical field of bolt production equipment, and provides a thread rolling machine for rough machining of bolts, which comprises a bottom plate, the rear side of the upper surface of the bottom plate is fixedly connected with a limiting plate, the front surface of the limiting plate is movably connected with a top plate, and the lower surface of the top plate is movably connected with the upper surface of the bottom plate. Through the arrangement of the top plate, the rotating rod, the connecting rod, the connecting strip and the thread rolling roller, when the first motor operates, the first circular shaft and the rotating rod start to rotate, the other end of the rotating rod drives the connecting rod at the moment, the connecting rod starts to rotate with the other end of the rotating rod as the axis, and meanwhile the other end of the connecting rod drives the top plate; the top plate is integrally limited by the limiting shaft to move forwards, so that the limiting of the top plate on the line rolling rollers is relieved, an operator can take down the two line rolling rollers and replace the two line rolling rollers at the moment, and the labor burden of replacing the line rolling rollers to the operator is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt production equipment, in particular to a thread rolling machine for rough processing of bolts. Background Art

[0002] A thread rolling machine is a multifunctional forming machine that utilizes two rotating thread rolling rollers to extrude a rod-shaped workpiece, and then extrude corresponding threads on the outer surface of the workpiece. At present, the thread rolling machines on the market can perform thread, straight grain, and twill rolling on workpieces within their rolling force range, and their production speed is fast and the forming quality is stable, which can well meet some thread rolling needs with low precision requirements.

[0003] When performing rough processing on bolts, operators often use a thread rolling machine to extrude a rough thread shape on the outer surface of the workpiece, thereby improving the production efficiency of the bolts. In actual use, although the existing thread rolling machines have basic thread rolling functions, the thread rolling rollers in the existing thread rolling machines are generally fixed inside the machine by bolts. When the thread pitch size in the processing requirements changes, the operator must replace the thread rolling roller to meet the processing requirements. However, the operator must first remove the large number of bolts before replacing the thread rolling roller, which greatly increases the labor intensity of the operator, and therefore needs to be improved. Utility Model Content

[0004] The utility model provides a thread rolling machine for rough processing of bolts, which solves the problem that the thread rolling roller is difficult to replace in the related technology.

[0005] The technical solution of the utility model is as follows: A thread rolling machine for rough machining of bolts, comprising:

[0006] A bottom plate, wherein the rear side of the upper surface of the bottom plate is fixedly connected to a limiting plate, the front surface of the limiting plate is movably connected to a top plate, and the lower surface of the top plate is movably connected to the upper surface of the bottom plate;

[0007] A connecting frame, wherein the connecting frame is fixedly connected to the front surface of the top plate, and the lower surface of the connecting frame is movably connected to the upper surface of the bottom plate;

[0008] A replacement mechanism, the replacement mechanism being arranged on the upper surface of the bottom plate;

[0009] Among them, the replacement mechanism includes a No. 1 motor, which is fixedly installed on the right side of the front end of the upper surface of the bottom plate, and the other end of the No. 1 motor output shaft is fixedly sleeved with a No. 1 round shaft, and the outer surface of the No. 1 round shaft is fixedly sleeved with a rotating rod, and the other end of the rotating rod is hinged with a connecting rod, and the other end of the connecting rod is hinged to the bottom end of the right surface of the top plate. The No. 1 round shaft and the rotating rod rotate so that the connecting rod drives the top plate to move as a whole.

[0010] As a preferred technical solution of the utility model, a fixing plate is fixedly connected to the front side of the upper surface of the base plate, and a limiting shaft is fixedly connected to the left and right sides of the rear surface of the fixing plate. The other end of the limiting shaft passes through the connecting frame and the top plate in sequence and extends to the front surface of the limiting plate and is fixedly connected to the limiting plate. The outer surface of the limiting shaft is movably connected to the inner surface of the top plate and the connecting frame respectively.

[0011] As an optimal technical solution of the utility model, a No. 2 motor is fixedly installed on the right surface of the limit plate, and the other end of the output shaft of the No. 2 motor is fixedly sleeved with a double-threaded screw, the right end of the double-threaded screw penetrates the limit plate and extends to the right side of the limit plate, the left and right sides of the outer surface of the double-threaded screw are threadedly sleeved with a movable frame located on the inner side of the limit plate, the right surface of the limit plate is fixedly connected with a limit rod located on the front side of the double-threaded screw, the left end of the limit rod sequentially penetrates the limit plate and the movable frame and extends to the left side of the limit plate and is fixedly sleeved with the inner surface of the limit plate, and the outer surface of the limit rod is movably sleeved with the inner surface of the movable frame.

[0012] As a preferred technical solution of the utility model, there are two mobile racks, and a No. 3 motor is fixedly installed on the top of the right surface of the two mobile racks. The other end of the output shaft of the No. 3 motor is fixedly sleeved with a rotating shaft. The left end of the rotating shaft passes through the mobile rack and extends to the right side of the top plate and is movably connected to the right surface of the top plate. The outer surface of the rotating shaft is fixedly connected to a connecting strip located between the top plate and the mobile rack.

[0013] As a preferred technical solution of the utility model, the outer surfaces of the rotating shaft and the connecting strip are movably sleeved with wire rollers, the number of the wire rollers is two, and the left surfaces of the two wire rollers are movably connected to the right surface of the top plate.

[0014] As a preferred technical solution of the utility model, a No. 4 motor is fixedly installed on the top of the middle part of the front surface of the top plate, the other end of the output shaft of the No. 4 motor is fixedly sleeved with a mounting shaft, and the outer surface of the mounting shaft is fixedly sleeved with a gear.

[0015] As a preferred technical solution of the utility model, the outer surface of the gear is meshingly connected with a tooth plate, and there are two tooth plates. The outer surfaces of the two tooth plates are fixedly connected with a connecting plate, and the outer surface of the connecting plate is fixedly connected with a cutting tool located under the No. 4 motor. There are two cutting tools, and the outer surfaces of the two cutting tools are movably sleeved with a limit block located on the front side of the top plate, and the rear surface of the limit block is fixedly connected to the front surface of the top plate.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model provides a top plate, a rotating rod, a connecting rod, a connecting strip and a wire roller. When the No. 1 motor is running, the No. 1 round shaft and the rotating rod will start to rotate. At this time, the other end of the rotating rod will drive the connecting rod, so that the connecting rod starts to rotate with the other end of the rotating rod as the axis. At the same time, the other end of the connecting rod will drive the top plate, so that the top plate as a whole starts to move forward under the limit of the limit shaft, which will release the limit of the wire roller on the top plate. At this time, the operator can remove the two wire rollers and replace them, which greatly reduces the labor burden of replacing the wire rollers on the operator.

[0018] 2. The utility model sets gears, tooth plates, connecting plates, cutting tools and limit blocks. When the No. 4 motor is running, the mounting shaft and the gear will start to rotate. Since the outer surfaces of the gears and the tooth plates are meshed with each other, the two tooth plates as a whole will move toward each other driven by the gears and limited by the inner surfaces of the limit blocks. During this process, the two cutting tools will gradually approach the outer surface of the workpiece and cut off the processed workpiece, thereby realizing the automatic cutting function of the processed bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the back of the utility model;

[0022] Figure 3 It is a cross-sectional structural schematic diagram of the side of the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the wire rolling roller of the utility model;

[0024] Figure 5 It is a schematic cross-sectional structure diagram of the connecting strip of the utility model.

[0025] In the figure: 1. bottom plate; 2. limit plate; 3. top plate; 4. connecting frame; 5. No. 1 motor; 6. No. 1 round shaft; 7. rotating rod; 8. connecting rod; 9. fixed plate; 10. limit shaft; 11. collecting box; 12. No. 2 motor; 13. double-threaded screw; 14. moving frame; 15. limit rod; 16. No. 3 motor; 17. rotating shaft; 18. connecting strip; 19. wire roller; 20. No. 4 motor; 21. mounting shaft; 22. gear; 23. tooth plate; 24. connecting plate; 25. cutting tool; 26. limit block. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5 As shown, the utility model provides a thread rolling machine for bolt rough machining, comprising:

[0028] A bottom plate 1, a rear side of the upper surface of the bottom plate 1 is fixedly connected to a limiting plate 2, a front surface of the limiting plate 2 is movably connected to a top plate 3, and a lower surface of the top plate 3 is movably connected to an upper surface of the bottom plate 1;

[0029] A connecting frame 4, the connecting frame 4 is fixedly connected to the front surface of the top plate 3, and the lower surface of the connecting frame 4 is movably connected to the upper surface of the bottom plate 1;

[0030] A replacement mechanism, the replacement mechanism is arranged on the upper surface of the bottom plate 1;

[0031] Among them, the replacement mechanism includes a No. 1 motor 5, which is fixedly installed on the right side of the front end of the upper surface of the base plate 1, and the other end of the output shaft of the No. 1 motor 5 is fixedly sleeved with a No. 1 circular shaft 6, and the outer surface of the No. 1 circular shaft 6 is fixedly sleeved with a rotating rod 7, and the other end of the rotating rod 7 is hinged with a connecting rod 8, and the other end of the connecting rod 8 is hinged to the bottom end of the right surface of the top plate 3. The rotation of the No. 1 circular shaft 6 and the rotating rod 7 causes the connecting rod 8 to drive the top plate 3 to move as a whole.

[0032] When the No. 1 motor 5 is running, the No. 1 circular shaft 6 and the rotating rod 7 will start to rotate, and the rotation of the rotating rod 7 will drive the connecting rod 8, so that the connecting rod 8 starts to rotate with the other end of the rotating rod 7 as the axis. At the same time, the other end of the connecting rod 8 will drive the top plate 3, so that the top plate 3 as a whole starts to move forward.

[0033] Among them, a fixing plate 9 is fixedly connected to the front side of the upper surface of the bottom plate 1, and a limiting shaft 10 is fixedly connected to the left and right sides of the rear surface of the fixing plate 9. The other end of the limiting shaft 10 passes through the connecting frame 4 and the top plate 3 in sequence and extends to the front surface of the limiting plate 2 and is fixedly connected to the limiting plate 2. The outer surface of the limiting shaft 10 is movably connected to the inner surface of the top plate 3 and the connecting frame 4 respectively.

[0034] Due to the design of the limiting shaft 10, the stability of the overall moving direction of the top plate 3 is ensured.

[0035] Among them, a No. 2 motor 12 is fixedly installed on the right surface of the limit plate 2, and the other end of the output shaft of the No. 2 motor 12 is fixedly sleeved with a double-threaded screw 13, the right end of the double-threaded screw 13 penetrates the limit plate 2 and extends to the right side of the limit plate 2, and the left and right sides of the outer surface of the double-threaded screw 13 are threadedly sleeved with a movable frame 14 located on the inner side of the limit plate 2, and the right surface of the limit plate 2 is fixedly connected with a limit rod 15 located on the front side of the double-threaded screw 13, the left end of the limit rod 15 successively penetrates the limit plate 2 and the movable frame 14 and extends to the left side of the limit plate 2 and is fixedly sleeved with the inner surface of the limit plate 2, and the outer surface of the limit rod 15 is movably sleeved with the inner surface of the movable frame 14.

[0036] The rotation of the double-threaded lead screw 13 drives the moving frame 14 , so that the moving frame 14 starts to move along the inner surface of the limiting plate 2 .

[0037] Among them, there are two mobile frames 14, and a No. 3 motor 16 is fixedly installed on the top of the right surface of the two mobile frames 14. The other end of the output shaft of the No. 3 motor 16 is fixedly sleeved with a rotating shaft 17. The left end of the rotating shaft 17 passes through the mobile frame 14 and extends to the right side of the top plate 3 and is movably connected to the right surface of the top plate 3. The outer surface of the rotating shaft 17 is fixedly connected to a connecting strip 18 located between the top plate 3 and the mobile frame 14.

[0038] When the third motor 16 is running, the rotating shaft 17 will start to rotate as a whole.

[0039] The outer surfaces of the rotating shaft 17 and the connecting strip 18 are both movably sleeved with wire rollers 19 , and there are two wire rollers 19 . The left surfaces of the two wire rollers 19 are both movably connected to the right surface of the top plate 3 .

[0040] Due to the outer shape design of the two wire rolling rollers 19, when the two wire rolling rollers 19 clamp the workpiece and start to rotate, the two wire rolling rollers 19 will squeeze threads out of the outer surface of the workpiece.

[0041] Among them, a No. 4 motor 20 is fixedly installed on the top of the middle part of the front surface of the top plate 3, and the other end of the output shaft of the No. 4 motor 20 is fixedly sleeved with a mounting shaft 21, and the outer surface of the mounting shaft 21 is fixedly sleeved with a gear 22.

[0042] When the fourth motor 20 is running, the mounting shaft 21 and the gear 22 will start to rotate.

[0043] Among them, the outer surface of the gear 22 is meshingly connected with a tooth plate 23, the number of which is two, the outer surfaces of the two tooth plates 23 are fixedly connected with a connecting plate 24, the outer surface of the connecting plate 24 is fixedly connected with a cutting tool 25 located below the No. 4 motor 20, the number of which is two, the outer surfaces of the two cutting tools 25 are movably sleeved with a limit block 26 located on the front side of the top plate 3, and the rear surface of the limit block 26 is fixedly connected to the front surface of the top plate 3.

[0044] When the gear 22 rotates, the two tooth plates 23 as a whole begin to move toward each other under the limit of the limit block 26 .

[0045] The working principle and use process of this utility model:

[0046] First, the operator starts motor No. 1 5. As motor No. 1 runs, round shaft No. 1 6 and rotating rod 7 start to rotate. At this time, the other end of rotating rod 7 drives connecting rod 8 and makes connecting rod 8 start to rotate, and the other end of connecting rod 8 drives top plate 3, so that top plate 3 as a whole starts to move forward under the limit of limit shaft 10. When collecting box 11 and fixed plate 9 are in contact, the operator first sleeves corresponding wire roller 19 on the outer surface of connecting strip 18 and rotating shaft 17 according to the thread rolling processing requirements of bolts, and then the operator starts motor No. 1 again to reset top plate 3 as a whole. At this time, the two wire rollers 19 will be limited between top plate 3 and movable frame 14.

[0047] Then the operator places the workpiece to be processed between the two wire rollers 19 and starts the No. 2 motor 12 and the No. 3 motor 16, wherein the operation of the No. 2 motor 12 will cause the two moving frames 14 to start moving toward each other as a whole under the limit of the limit rod 15, and finally the two wire rollers 19 will clamp the outer surface of the workpiece, and the operation of the No. 3 motor 16 will cause the two wire rollers 19 to start rotating as a whole, and finally under the extrusion of the outer surface of the wire roller 19, the outer surface of the workpiece to be processed will be squeezed out with the corresponding thread.

[0048] When the processed bolt part moves to the front side of the cutting tool 25, the operator starts the No. 4 motor 20. As the No. 4 motor 20 runs, the mounting shaft 21 and the gear 22 begin to rotate. Since the gear 22 and the tooth plate 23 are meshed with each other, the two tooth plates 23 as a whole will move toward each other driven by the gear 22 and limited by the inner surface of the limit block 26. During this process, the two cutting tools 25 will cut off the workpiece, and the cut workpiece will fall into the collection box 11, which realizes the automatic cutting function of the processed workpiece, so that the operator does not need to use additional tools to cut off the processed part.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thread rolling machine for rough machining of bolts, characterized in that: Included are: A bottom plate (1), the rear side of the upper surface of the bottom plate (1) being fixedly connected to a limiting plate (2), the front surface of the limiting plate (2) being movably connected to a top plate (3), the lower surface of the top plate (3) being movably connected to the upper surface of the bottom plate (1); A connecting frame (4), the connecting frame (4) being fixedly connected to the front surface of the top plate (3), and the lower surface of the connecting frame (4) being movably connected to the upper surface of the bottom plate (1); A replacement mechanism, the replacement mechanism being arranged on the upper surface of the bottom plate (1); The replacement mechanism comprises a No. 1 motor (5), the No. 1 motor (5) is fixedly mounted on the right side of the front end of the upper surface of the bottom plate (1), the other end of the output shaft of the No. 1 motor (5) is fixedly sleeved with a No. 1 round shaft (6), the outer surface of the No. 1 round shaft (6) is fixedly sleeved with a rotating rod (7), the other end of the rotating rod (7) is hinged with a connecting rod (8), the other end of the connecting rod (8) is hinged with the bottom end of the right surface of the top plate (3), and the No. 1 round shaft (6) and the rotating rod (7) rotate so that the connecting rod (8) drives the top plate (3) to move as a whole.

2. A thread rolling machine for bolt rough machining according to claim 1, characterized in that: A fixing plate (9) is fixedly connected to the front side of the upper surface of the bottom plate (1), and a limiting shaft (10) is fixedly connected to the left and right sides of the rear surface of the fixing plate (9). The other end of the limiting shaft (10) passes through the connecting frame (4) and the top plate (3) in sequence and extends to the front surface of the limiting plate (2) and is fixedly connected to the limiting plate (2). The outer surface of the limiting shaft (10) is movably sleeved with the inner surface of the top plate (3) and the connecting frame (4), respectively.

3. The thread rolling machine for bolt rough machining according to claim 1, characterized in that: A second motor (12) is fixedly mounted on the right surface of the limit plate (2); a double-threaded lead screw (13) is fixedly sleeved on the other end of the output shaft of the second motor (12); the right end of the double-threaded lead screw (13) passes through the limit plate (2) and extends to the right side of the limit plate (2); both left and right sides of the outer surface of the double-threaded lead screw (13) are threadedly sleeved with a movable frame (14) located on the inner side of the limit plate (2); a limit rod (15) located on the front side of the double-threaded lead screw (13) is fixedly connected to the right surface of the limit plate (2); the left end of the limit rod (15) passes through the limit plate (2) and the movable frame (14) in sequence and extends to the left side of the limit plate (2) and is fixedly sleeved on the inner surface of the limit plate (2); the outer surface of the limit rod (15) is movably sleeved on the inner surface of the movable frame (14).

4. The thread rolling machine for bolt rough machining according to claim 3, characterized in that: There are two movable frames (14), and a No. 3 motor (16) is fixedly mounted on the top of the right surface of each of the two movable frames (14). A rotating shaft (17) is fixedly sleeved on the other end of the output shaft of the No. 3 motor (16). The left end of the rotating shaft (17) passes through the movable frame (14) and extends to the right side of the top plate (3) and is movably connected to the right surface of the top plate (3). The outer surface of the rotating shaft (17) is fixedly connected to a connecting strip (18) located between the top plate (3) and the movable frame (14).

5. The thread rolling machine for bolt rough machining according to claim 4, characterized in that: The outer surfaces of the rotating shaft (17) and the connecting strip (18) are both movably sleeved with wire rollers (19), the number of the wire rollers (19) is two, and the left surfaces of the two wire rollers (19) are both movably connected to the right surface of the top plate (3).

6. The thread rolling machine for bolt rough machining according to claim 1, characterized in that: A fourth motor (20) is fixedly mounted on the top of the middle portion of the front surface of the top plate (3); a mounting shaft (21) is fixedly sleeved on the other end of the output shaft of the fourth motor (20); and a gear (22) is fixedly sleeved on the outer surface of the mounting shaft (21).

7. The thread rolling machine for bolt rough machining according to claim 6, characterized in that: The outer surface of the gear (22) is meshingly connected with a tooth plate (23), the number of the tooth plates (23) is two, the outer surfaces of the two tooth plates (23) are fixedly connected with a connecting plate (24), the outer surface of the connecting plate (24) is fixedly connected with a cutting tool (25) located below the fourth motor (20), the number of the cutting tools (25) is two, the outer surfaces of the two cutting tools (25) are movably sleeved with a limit block (26) located on the front side of the top plate (3), and the rear surface of the limit block (26) is fixedly connected to the front surface of the top plate (3).

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