Positioning system of milling machine

Abstract

The invention relates to the technical field of milling machines, in particular to a milling machine positioning system which comprises a base, a sliding seat, a mounting seat, a driving box, a positioning mechanism, two supporting mechanisms, two rotating rods and a chuck. The chucks are installed on the opposite sides of the two driving boxes, a workpiece is located between the two rotating rods, and the ends, away from the workpiece, of the rotating rods are clamped in the chucks. The intelligent positioning tool for milling drum tool apron welding is suitable for the milling drum production process, and the high-precision milling drum is stably produced by adopting the intelligent positioning tool for milling drum tool apron welding. According to the positioning tool, accurate positioning between the milling drum tool apron and the milling drum is ensured, so that accurate matching of the milling drum tool and the workpiece is realized, and the milling efficiency and the machining precision are improved. Therefore, by using the positioning tool, the performance of the milling drum can be remarkably improved, the service life of the milling drum can be remarkably prolonged, meanwhile, the machining technological process is optimized, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of milling machines, in particular to a positioning system for milling machines. Background Art

[0002] The milling drum is a mechanical device used to build roads, bridges, airport runways and other construction sites. It removes uneven potholes on the road surface and cuts the road edge by rotating the tip of the milling workpiece to ensure the flatness and cleanliness of the road. Because it works like a planer, it is also called a road planer. The milling drum usually consists of a drive wheel and a milling disc. The reducer equipped with the drive wheel is the milling drum reducer.

[0003] The milling drum reducer is an important part of the milling drum drive system. It helps the milling drum to run smoothly by converting high-speed, low-torque power to low-speed, high-torque output. Compared with ordinary reducers, the milling drum reducer also has higher torque and greater durability, and can better adapt to the high load and high power requirements of the milling drum, meeting the requirements of modern construction.

[0004] In the traditional milling drum manufacturing process, the operator usually manually positions the milling drum cutter holder and then manually welds it. However, due to many technical limitations of this method, the positioning accuracy of the cutter holder is often difficult to guarantee. This inaccurate positioning may result in low precision of the milling drum product, thus affecting its use effect. Summary of the invention

[0005] The purpose of the present invention is to provide a positioning system for a milling machine, in order to solve the problem of low efficiency of manual welding of a milling drum cutter seat at present.

[0006] To achieve the above object, the present invention provides the following technical solutions: A milling machine positioning system includes a base, a sliding seat, a mounting seat, a drive box, a positioning mechanism, two supporting mechanisms, two rotating rods, and a chuck; The chuck is mounted on opposite sides of the two drive boxes, the workpiece is located between the two rotating rods, and the end of the rotating rod away from the workpiece is clamped inside the chuck; The driving box and the sliding seat are both slidably connected to the base in the length direction. The sliding seat is located in the space formed by the two driving boxes to adapt to workpieces of different sizes.

[0007] Optionally, the supporting mechanism includes a hydraulic lifting rod, a support plate, a U-shaped frame, and two telescopic rods. The hydraulic lifting rod is fixed above the drive box, and the telescopic rod serves as a guide. The telescopic rod and the hydraulic lifting rod are both fixedly connected to the bottom of the support plate. The two U-shaped frames are both fixedly connected in the trapezoidal space of the support plate. A roller located below the rotating rod is rotatably connected in the space inside the U-shaped frame, and a space for placing the rotating rod is formed in an inclined state between the two rollers.

[0008] Optionally, a transmission structure is installed inside the driving box, and the transmission structure drives the rotating rod to rotate through the chuck.

[0009] Optionally, flanges are fixedly connected to the opposite ends of the two rotating rods, a connecting ring is provided at the inner wall of the workpiece, and the flanges are attached to the surface of the connecting ring.

[0010] Optionally, the positioning mechanism includes a base plate, an angle seat, and a support block. The base plate is fixedly connected to the top of the mounting seat, and the support block passes through the angle seat and is fixed to one side of the angle seat. The support block can firstly install the tool tip of the workpiece, and secondly, can also magnetically attract the workpiece.

[0011] A milling machine positioning system also includes a thin cylinder 1, a thin cylinder 2, and a connecting shaft, wherein the thin cylinder 1 and the thin cylinder 2 are fixedly connected to the side of the angle seat 1 away from the workpiece, and the thin cylinder 2 is located above the thin cylinder 1; the output end of the thin cylinder 1 is connected to the ejector pin located inside the support block 1; one end of the support block 1 is provided with a plurality of mounting grooves, and the interior of the mounting grooves is inlaid with magnets; one end of the support block 1 is provided with a groove, and the support block 1 is used to install a tensioning pin of the workpiece tool tip, and the tensioning pin is sleeved on the surrounding side of the ejector pin; the telescopic end of the thin cylinder 2 is fixedly connected to the connecting shaft passing through the angle seat 1, and one end of the connecting shaft is fixedly connected to a clamping block close to the side of the workpiece.

[0012] Optionally, the tensioning pin is provided with a plurality of through slots arranged in a ring shape, and the through slots divide the tensioning pin into a plurality of triangular structures.

[0013] A milling machine positioning system also includes a second angle seat, an adjustment gasket, and a second support block. The second angle seat is fixedly connected to one side of the first angle seat, the adjustment gasket is fixedly connected to the edge above the second angle seat, and a placement groove for placing a workpiece is opened above the adjustment gasket.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention is applicable to the production process of the milling drum, and adopts the intelligent positioning fixture welded with the milling drum cutter seat to stably produce high-precision milling drums. The positioning fixture ensures the precise positioning between the milling drum cutter seat and the milling drum, thereby achieving the precise matching of the milling drum cutter and the workpiece, and improving the milling efficiency and processing accuracy. Therefore, the use of the positioning fixture of the present invention can significantly improve the performance and service life of the milling drum, while also optimizing the processing process and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the schematic diagrams of the three-dimensional structure of the positioning tool of the present invention; Figure 2 This is the second schematic diagram of the three-dimensional structure of the positioning tool of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the positioning mechanism of the present invention; Figure 4 It is a structural schematic diagram of the cross section of the positioning mechanism of the present invention; Figure 5 yes Figure 4 Schematic diagram of the structure at point A in the middle.

[0016] In the figure: 1. base; 2. sliding seat; 3. mounting seat; 4. driving box; 5. workpiece; 6. rotating rod; 7. hydraulic lifting rod; 8. support plate; 9. U-shaped frame; 10. roller; 11. servo motor; 12. flange; 13. connecting ring; 14. bottom plate; 15. angle seat 1; 16. support block 1; 18. thin cylinder 1; 19. thin cylinder 2; 20. connecting shaft; 21. ejector pin; 22. magnet; 23. tension pin; 24. clamping block; 25. through groove; 26. angle seat 2; 27. adjusting gasket; 28. support block 2; 29. ​​chuck. DETAILED DESCRIPTION

[0017] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 5The embodiment of the present invention provides a milling machine positioning system including a base 1, a sliding seat 2, a mounting seat 3, a driving box 4, a positioning mechanism, two supporting mechanisms, two rotating rods 6, and a chuck 29; the chuck 29 is installed on the opposite sides of the two driving boxes 4, the workpiece 5 is located between the two rotating rods 6, and the end of the rotating rod 6 away from the workpiece 5 is clamped inside the chuck 29; the driving box 4 and the sliding seat 2 are both slidably connected in the length direction of the base 1, and the sliding seat 2 is located in the space formed by the two driving boxes 4 to adapt to workpieces 5 of different sizes; the mounting seat 3 is slidably connected in the length direction of the sliding seat 2, and the positioning mechanism is slidably connected above the mounting seat 3 to make the positioning mechanism close to the workpiece 5, and the chuck 29 is a three-jaw chuck 29 in the prior art. Specifically, the sliding seat 2, the positioning mechanism, and the mounting seat 3 can all slide by means of electric guide rails. The use of electric guide rails can make the sliding seat 2 and the mounting seat 3 move more conveniently, and the driving box 4 can provide a stronger power for the gearbox structure to rotate the rotating rod 6 to assist the rotation movement. The positioning tooling can stably produce high-precision milling drums. The produced milling drums have higher milling efficiency and improved milling drum performance.

[0019] The supporting mechanism includes a hydraulic lifting rod 7, a support plate 8, and a U-shaped frame 9. The hydraulic lifting rod 7 is located above the driving box 4. The telescopic end of the hydraulic lifting rod 7 is fixedly connected to the support plate 8. The two U-shaped frames 9 are fixedly connected in the trapezoidal space of the support plate 8. The space inside the U-shaped frame 9 is rotatably connected to a roller 10 located below the rotating rod 6. The two rollers 10 are in an inclined state to form a space for placing the rotating rod 6. Through the setting of the supporting mechanism, the rotating rod 6 can be positioned when installing the workpiece, thereby avoiding the rotating rod 6 from being suspended in the air, thereby improving the stability of the subsequent placement of the rotating workpiece.

[0020] The opposite ends of the two rotating rods 6 are connected with flanges 12 by welding, and a connecting ring 13 is provided at the inner wall of the workpiece 5, and the flange 12 is attached to the surface of the connecting ring 13. The cooperation between the connecting ring 13 and the flange 12 can realize the synchronous rotation of the rotating rod 6 and the workpiece 5, and ensure the stability and precision of the workpiece 5. Moreover, the connection between the connecting ring 13 and the flange 12 by bolts makes installation and maintenance very convenient.

[0021] In this embodiment, the positioning mechanism includes a base plate 14, an angle seat 15, a support block 16, a thin cylinder 18, a thin cylinder 2 19, a connecting shaft 20, an angle seat 26, an adjustment gasket 27, and a support block 28. The base plate 14 is fixedly connected to the top of the mounting seat 3. A slide groove is provided on one side of the angle seat 15. The support block 16 passes through the slide groove and is located on the side of the angle seat 15 close to the workpiece 5. The cross section of the slide groove is a T-shaped structure, and the cross section of the support block 16 is also a T-shaped block structure. The combination of the T-shaped structure can prevent the product from falling off during use, thereby improving the stability of the subsequent support block 16 after installation. The support block 16 can firstly install the tip of the workpiece 5, and secondly, it can also magnetically attract the workpiece 5. By adopting the setting of the support block 16, the workpiece 5 can be positioned when the tool is installed.

[0022] In this embodiment, thin cylinder 18 and thin cylinder 2 19 are fixedly connected to the side of angle seat 15 away from workpiece 5, and thin cylinder 2 19 is located above thin cylinder 18; the output end of thin cylinder 18 is connected to the ejector pin 21 located inside the support block 16; one end of the support block 16 is provided with a plurality of mounting grooves, and the interior of the mounting grooves is inlaid with magnets 22, and one end of the support block 16 is provided with a groove, and the support block 16 is used to install the tension pin 23 of the tool tip of the workpiece 5. The tension pin 23 is sleeved on the peripheral side of the ejector pin 21, and the front end of the ejector pin 21 adopts an arc-shaped structure design. The function of this design is to make the tension pin 23 present a petal-shaped unfolded state, so as to facilitate the subsequent installation of the tool tip of the workpiece 5, and to increase the contact area between the workpiece 5 and the tool tip, thereby improving the accuracy and stability of the workpiece 5 processing. The telescopic end of the thin cylinder 2 19 is fixedly connected to a connecting shaft 20 passing through the angle seat 15 , and one end of the connecting shaft 20 is fixedly connected to a clamping block 24 close to one side of the workpiece 5 .

[0023] The tension pin 23 is provided with a plurality of through slots 25 arranged in a ring shape, and the through slots 25 divide the tension pin 23 into a plurality of triangular structures. Angle seat 26 is fixedly connected to one side of angle seat 15, and an adjustment gasket 27 is fixedly connected to the edge above angle seat 26. A placement slot for placing the workpiece 5 is provided above the adjustment gasket 27. According to the production of the same model with different installation angles, tilt angles, rotation angles or different models of milling drum products, different positioning tooling is switched for production. The difference between different tooling is that different angle seat 15, switching base plate 14, angle seat 26, and support block 28 meet the positioning of various models of milling drum tool holders, thereby improving the accuracy of subsequent processing. Oil-free bushing 1, oil-free bushing 2, and oil-free bushing 3 are also provided on the outside of the two thin cylinder piston rods.

[0024] Place the workpiece 5 between the two rotating rods 6, then turn on the servo motor 11, use bolts to combine the rotating rod 6 and the workpiece 5, and then use bolts to combine the rotating rod 6 and the workpiece 5 together. Finally, the worker inserts the tool tip mounting hole of the workpiece 5 into the tensioning pin 23, and the tool tip mounting end face is close to the support surface of the support block. The four magnets 22 attract the workpiece 5, and the thin cylinder 18 pushes the ejector pin 21 to extend and open the tensioning pin 23. The equipment servo motor 11 drives the slide and the positioning tooling to fit the milling drum according to the program that conforms to the tool tip coordinates and then weld. After welding is completed, the thin cylinder 18 shrinks and pulls back the ejector pin 21, the tensioning pin 23 shrinks, and the output end of the thin cylinder 2 19 does not move, and the cylinder body moves backward to drive the tensioning pin 23 structure to withdraw, and the equipment servo motor 11 drives the slide and the positioning tooling to retract.

[0025] When the workpiece needs to be installed, first combine the workpiece and the rotating rod together, then use the workpiece to hang the rotating rod above the positioning device, then lower the crane to place the rotating rod in the two roller spaces, the roller spaces play a corresponding role in supporting the rotating rod, then start the electric guide rail to make the rotating rod slide into the two chucks, use the chuck to tighten the rotating rod, and then complete the drive of the workpiece through the drive box.

[0026] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling machine positioning system, characterized in that: It comprises a base (1), a sliding seat (2), a mounting seat (3), a driving box (4), a positioning mechanism, two supporting mechanisms, two rotating rods (6), and a chuck; The chuck is mounted on opposite sides of the two drive boxes (4), the workpiece (5) is located between the two rotating rods (6), and the end of the rotating rod (6) away from the workpiece (5) is clamped inside the chuck (29); The driving box (4) and the sliding seat (2) are both slidably connected in the length direction of the base (1); the sliding seat (2) is located in the space formed by the two driving boxes (4) to accommodate workpieces (5) of different sizes; The mounting seat (3) is slidably connected to the sliding seat (2) in the length direction, and the positioning mechanism is slidably connected above the mounting seat (3) so as to enable the positioning mechanism to approach the workpiece (5).

2. A milling machine positioning system according to claim 1, characterized in that: The support mechanism comprises a support plate (8), a U-shaped frame (9), and a plurality of hydraulic lifting rods (7); the hydraulic lifting rods (7) are fixed above a driving box; the telescopic ends of the hydraulic lifting rods (7) are fixedly connected to the bottom of the support plate (8); the two U-shaped frames (9) are fixedly connected to the trapezoidal space of the support plate (8); a roller (10) located below the rotating rod (6) is rotatably connected to the space inside the U-shaped frame (9); a space for placing the rotating rod (6) is formed in an inclined state between the two rollers (10).

3. A milling machine positioning system according to claim 1, characterized in that: A transmission structure is installed inside the driving box (4), and the transmission structure drives the rotating rod to rotate through the chuck.

4. A milling machine positioning system according to claim 1, characterized in that: The opposite ends of the two rotating rods (6) are fixedly connected with flanges (12), and a connecting ring (13) is arranged on the inner wall of the workpiece (5), and the flanges (12) are attached to the surface of the connecting ring (13).

5. A milling machine positioning system according to claim 1, characterized in that: The positioning mechanism comprises a base plate (14), an angle seat (15) and a support block (16); the base plate (14) is fixedly connected to the top of the mounting seat (3); the support block (16) passes through the angle seat (15) and is fixed to one side of the angle seat (15); the support block (16) is used to mount the tool tip of the workpiece (5).

6. A milling machine positioning system according to claim 5, characterized in that: It also includes a thin cylinder 1 (18) and a thin cylinder 2 (19), wherein the thin cylinder 1 (18) and the thin cylinder 2 (19) are fixedly connected to a side of the corner seat 1 (15) away from the workpiece (5), and the thin cylinder 2 (19) is located above the thin cylinder 1 (18); the output end of the thin cylinder 1 (18) is connected to an ejector pin (21) located inside the support block 1 (16); one end of the support block 1 (16) is provided with a plurality of mounting grooves, and the mounting grooves are A magnet (22) is embedded inside, and a groove is formed at one end of the support block (16). The support block (16) is used to install a tensioning pin (23) of the tool tip of the workpiece (5), and the tensioning pin (23) is sleeved on the peripheral side of the ejection pin (21); the telescopic end of the thin cylinder (19) is fixedly connected to a connecting shaft (20) passing through the angle seat (15), and one end of the connecting shaft (20) is fixedly connected to a clamping block (24) close to one side of the workpiece (5).

7. A milling machine positioning system according to claim 6, characterized in that: The tensioning pin (23) is provided with a plurality of through slots (25) arranged in a ring shape, and the through slots (25) divide the tensioning pin (23) into a plurality of triangular structures.

8. A milling machine positioning system according to claim 1, characterized in that: It also includes a second angle seat (26), an adjustment gasket (27), and a second support block (28), wherein the second angle seat (26) is fixedly connected to one side of the first angle seat (15), the adjustment gasket (27) is fixedly connected to the edge above the second angle seat (26), and a placement groove for placing a workpiece (5) is provided above the adjustment gasket (27).

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