Accurate positioning device for heavy-load shaft cross wedge rolling material pulling machine
By designing an accurate positioning device with double-fitting pulling hook and positioning rod in a wedge cross-rolling pulling machine, the problem of accurate positioning of rolled parts during automatic transmission is solved, and efficient and accurate positioning of rolled parts is achieved.
Patent Information
- Application Number
- CN202421991428.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-16
AI Technical Summary
During the automated transmission process, due to the inertia, when the rolled piece is transported on the track, it is impossible to accurately limit its parking position on the transportation track by relying solely on a pulling hook.
An accurate positioning device for a heavy-duty shaft wedge cross-rolling and pulling machine is designed, and the pulling hook and positioning rod are used to achieve accurate positioning of the rolling parts by the cooperation of the cylinder and the limiting parts.
It realizes accurate positioning of rolled parts, solves the positioning problems caused by inertia, is convenient to operate, has high working efficiency and a wide range of application.
Smart Images
Figure CN222944198U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wedge cross rolling, in particular to an accurate positioning device for a heavy-load shaft wedge cross rolling material drawing machine. Background Art
[0002] The wedge cross-rolling process is to use two rollers with wedge-shaped holes to rotate in the same direction along the direction of the wedge, drive the rolled piece to rotate in the opposite direction, and gradually roll the billet into a variable-section rotating body through radial compression and axial extension. It has the advantages of high material utilization, high efficiency, low noise, and less pollution. With the improvement of my country's industrial development level, the application of wedge cross-rolling technology has become more and more extensive. Since the wedge cross-rolling process is suitable for large-scale stable production and the stepped shaft products of some heavy-duty vehicle gearboxes are large in size and heavy in weight, some automated production devices have come into being. In the process of automated transmission, due to inertia, when the rolled piece is transported on the track, it is impossible to accurately limit its parking position on the transport track by only one pulling hook. This requires the design of an accurate positioning device for the heavy-duty shaft wedge cross-rolling pulling machine. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an accurate positioning device for a heavy-loaded shaft wedge cross-rolling drawing machine, which is easy to operate, has high working efficiency, can effectively solve the problem of accurate positioning of the rolled piece during the drawing process, and has high versatility.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an accurate positioning device for a heavy-load shaft wedge cross-rolling material drawing machine, including a base, a positioning rod base, a material drawing hook base, a cylinder, a cylinder bracket, a sleeve, a guide sleeve, a positioning rod, a material drawing hook, a rotating shaft, and a limiter;
[0005] The base is fixedly connected to the slider, the slider is slidably connected to the slide rail, and the slide rail is fixedly connected to the rolled piece conveying track; the positioning rod base is adjustably connected to the base, the cylinder bracket is fixedly connected to the positioning rod base, the tail of the cylinder is adjustably connected to the cylinder bracket, the top of the cylinder piston rod is fixedly connected to one end of the positioning rod through a sleeve, the positioning rod is slidably connected to the guide sleeve, the guide sleeve is fixedly connected to the positioning rod base, and the other end of the positioning rod passes through the guide sleeve and extends to the side elevation of the pillow block of the rolled piece;
[0006] The pulling hook base is fixedly connected to the base, and the pulling hook is rotatably connected to the pulling hook base through a rotating shaft. The top of the pulling hook extends upward to the side vertical surface of the pillow block of the rolled piece. The limiter is connected to the pulling hook base. The limiter is located below the pulling hook and contacts with the pulling hook. The limiter limits the direction of rotation of the pulling hook around the rotating shaft.
[0007] Preferably, the tail of the cylinder is fixedly connected to a cylinder adjusting block, and the cylinder adjusting block can move on the cylinder support along the axis direction perpendicular to the rolled piece.
[0008] Preferably, a groove is provided on one side of the cylinder bracket, and the cylinder adjustment block is embedded in the groove and can slide in the groove. A bolt is screwed on the other side of the cylinder bracket, and the bolt passes through the cylinder bracket and is screwed on the cylinder adjustment block.
[0009] Preferably, the top of the material pulling hook is an acute angle structure, and the weight of the material pulling hook above the rotating shaft is less than the weight below the rotating shaft. Under the action of its own gravity, one side of the acute angle structure at the top of the material pulling hook remains in a vertical state.
[0010] Preferably, a spring is provided between the pulling hook base and the pulling hook to prevent the pulling hook from rotating at an excessively large angle and thus escaping from the limiting member.
[0011] Preferably, a long hole is provided on the base along the length direction of the rolled piece, and a bolt passes through the long hole to connect the positioning rod base to the base, and the positioning rod base can be adjusted along the long hole.
[0012] The beneficial effects of adopting the above technical scheme are: the utility model has a simple structure, adopts a double-cooperation method of a pulling hook and a positioning rod to pull materials and accurately limit the parking position of the rolled piece, is very convenient to operate, can effectively solve the positioning problem of the rolled piece caused by inertia during the transportation process, has high work efficiency, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the structure in which the positioning device is installed on the conveying track;
[0015] In the figure: 1. Cylinder adjustment block; 2. Cylinder; 3. Positioning rod base; 4. Sleeve; 5. Guide sleeve; 6. Rolled product; 7. Positioning rod; 8. Pulling hook; 9. Rotating shaft; 10. Pulling hook base; 11. Spring; 12. Limiting piece; 13. Base; 14. Cylinder bracket. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0017] like Figure 1 As shown, the positioning device includes a base 13, a positioning rod base 3, a material pulling hook base 10, a cylinder 2, a cylinder bracket 14, a sleeve 4, a guide sleeve 5, a positioning rod 7, a material pulling hook 8, a rotating shaft 9, and a limit member 12.
[0018] like Figure 2 As shown, the positioning device is installed below the conveying track of the rolled piece. The base 13 is fixedly connected to the slider, the slider is slidably connected to the slide rail, and the slide rail is fixedly connected to the conveying track of the rolled piece. A long hole is provided on the base 13 along the length direction of the conveying track, and the positioning rod base 3 is connected to the base 13 by bolts. The position of the positioning rod base 3 on the base 13 can be adjusted by changing the position of the bolt in the long hole. The cylinder bracket 14 is fixedly connected to the positioning rod base 3. A cylindrical pit is provided on one side of the cylinder bracket 14, and the cylinder adjustment block 1 is embedded in the pit and can slide and move in the pit, and the tail of the cylinder 2 is fixedly connected to the cylinder adjustment block 1. Bolts are screwed on the other side of the cylinder bracket 14, and the bolts pass through the cylinder bracket 14 and are screwed to the cylinder adjustment block 1. The depth of the cylinder adjustment block 1 embedded in the pit can be adjusted by rotating the bolt, thereby adjusting the position of the cylinder 2. The top of the piston rod of the cylinder 2 is fixedly connected to one end of the positioning rod 7 through the sleeve 4, the positioning rod 7 is slidably connected to the guide sleeve 5, the guide sleeve 5 is fixedly connected to the positioning rod base 3, and the other end of the positioning rod 7 passes through the guide sleeve 5 and extends to the side elevation of the pillow block of the rolled piece.
[0019] like Figure 1 As shown, the material hook base 10 is fixedly connected to the base 13, and the material hook 8 is rotatably connected to the material hook base 10 through the rotating shaft 9. The top of the material hook 8 is an acute-angle structure, and one side of the acute angle is upright, close to the side elevation of the pillow block of the rolled piece. The limiter 12 can be a rotating shaft or a fixed shaft, connected to the material hook base 10. The limiter 12 is located below the material hook 8 and is in tangential contact with the material hook 8. The limiter 12 limits the direction in which the material hook 8 rotates around the rotating shaft 9.
[0020] It should be noted that the weight of the material pulling hook 8 above the rotating shaft 9 is less than the weight below the rotating shaft 9. The material pulling hook 8 has a tendency to rotate clockwise around the rotating shaft 9 under its own gravity, and under the restriction of the stopper 12, the sharp angle edge at the top of the material pulling hook 8 remains vertical.
[0021] The material pulling hook 8 can rotate counterclockwise around the rotating shaft 9. In order to prevent the material pulling hook 8 from rotating counterclockwise at an excessively large angle under the action of external force and causing an accident, a spring 11 is arranged between the material pulling hook base 10 and the material pulling hook 8.
[0022] After the workpiece 6 falls from the rolling mill onto the conveying track, the positioning device moves along the slide rail to the workpiece. When the positioning device moves to the appropriate position, the top acute angle of the material hook 8 is in a vertical state and affixed to the side of one pillow block of the workpiece 6 under the action of gravity and the limiter 12. The piston rod of the cylinder 2 extends, so that the top of the positioning rod 7 affixes to the side of another pillow block of the workpiece 6, clamping the workpiece 6 together with the material hook 8. The positioning device moves along the slide rail, and after conveying the workpiece 6 to the appropriate position, the positioning rod 7 retracts, and the positioning device moves in the opposite direction along the slide rail, and the material hook 8 automatically rotates counterclockwise to avoid the protrusions of the workpiece, and finally the acute angle of the top is still kept in a vertical state under the action of gravity and the limiter 12, and returns to the starting position.
[0023] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. An accurate positioning device for a heavy-loaded shaft wedge cross-rolling drawing machine, characterized in that: It comprises a base (13), a positioning rod base (3), a material pulling hook base (10), a cylinder (2), a cylinder bracket (14), a sleeve (4), a guide sleeve (5), a positioning rod (7), a material pulling hook (8), a rotating shaft (9), and a stopper (12); The base (13) is fixedly connected to the slider, the slider is slidably connected to the slide rail, and the slide rail is fixedly connected to the rolled piece conveying track; the positioning rod base (3) is adjustably connected to the base (13), the cylinder bracket (14) is fixedly connected to the positioning rod base (3), the tail of the cylinder (2) is adjustably connected to the cylinder bracket (14), the top of the piston rod of the cylinder (2) is fixedly connected to one end of the positioning rod (7) through the sleeve (4), the positioning rod (7) is slidably connected to the guide sleeve (5), the guide sleeve (5) is fixedly connected to the positioning rod base (3), and the other end of the positioning rod (7) passes through the guide sleeve (5) and extends to the side elevation of the pillow block of the rolled piece; The material pulling hook base (10) is fixedly connected to the base (13); the material pulling hook (8) is rotatably connected to the material pulling hook base (10) via the rotating shaft (9); the top of the material pulling hook (8) extends upward to the side elevation of the axle table of the rolled piece; the limiting member (12) is connected to the material pulling hook base (10); the limiting member (12) is located below the material pulling hook (8) and contacts the material pulling hook (8); the limiting member (12) limits the direction in which the material pulling hook (8) rotates around the rotating shaft (9).
2. According to claim 1, the accurate positioning device for a heavy-loaded shaft wedge cross-rolling drawing machine is characterized in that: The tail of the cylinder (2) is fixedly connected to a cylinder adjustment block (1), and the cylinder adjustment block (1) can move on a cylinder support (14) along an axial direction perpendicular to the rolled piece.
3. The accurate positioning device for a heavy-loaded shaft wedge cross-rolling drawing machine according to claim 2 is characterized in that: A groove is provided on one side of the cylinder bracket (14), and the cylinder adjustment block (1) is embedded in the groove and can slide in the groove. A bolt is screwed on the other side of the cylinder bracket (14), and the bolt passes through the cylinder bracket (14) and is screwed on the cylinder adjustment block (1).
4. The accurate positioning device for a heavy-loaded shaft wedge cross-rolling drawing machine according to claim 1 is characterized in that: The top of the material pulling hook (8) is an acute-angle structure, and the weight of the material pulling hook (8) above the rotating shaft (9) is less than the weight below the rotating shaft (9).
5. The accurate positioning device for a heavy-loaded shaft wedge cross-rolling drawing machine according to claim 1 is characterized in that: A spring (11) is provided between the material pulling hook base (10) and the material pulling hook (8).
6. The accurate positioning device for a heavy-loaded shaft wedge cross-rolling drawing machine according to claim 1 is characterized in that: A long hole is provided on the base (13) along the length direction of the rolled piece (6).