CN101234437A - A milling method and equipment for arc surface milling of fist part of automobile front axle - Google Patents

Abstract

The invention relates to a processing method for milling the curved surface of the fist part of the front axle of an automobile, and also relates to a processing equipment for milling the curved surface of the fist part of the front axle of the automobile. The technical solution is: (1) place the car front axle to be processed on the workpiece rotating support set above the workbench, and insert the upper end of the rotating shaft fixedly connected with the workpiece rotating support into the kingpin of the fist part of the car front axle to be processed (2) The milling cutter works and rotates around its own axis; (3) The power system works in the forward direction, driving the rotating shaft to rotate through the transmission mechanism, thereby driving the front axle of the car fixed on the rotating shaft to move on the workbench Rotate and move around the axis of the rotating shaft to realize the milling process of the milling cutter on the arc surface of the front axle of the car; (4) The power system works in reverse, and the rotating shaft is driven to rotate in the reverse direction through the transmission mechanism, thereby driving the workpiece to return. The outstanding advantages of the invention are: shortening the production period, improving the processing efficiency and reducing the production cost.

Description

A milling method and equipment for arc surface milling of fist part of automobile front axle

Technical field:

The invention relates to the technical field of auto parts processing, in particular to a milling method and equipment for an arc surface of a fist part of an automobile front axle.

Background technique:

At present, the front axle of the car is mostly processed by slotting machine. Since the slotting machine uses a single-edged tool (slotting knife) to cut the workpiece, the productivity and accuracy are low, and it is more suitable for single-piece or small batch production; During the machining process, the part is only processed once for one stroke, so that when the arc surface of the fist of a car front axle is processed by a slotting machine, it needs to go through dozens or even hundreds of strokes to complete the processing, which is extremely inefficient. Only a dozen pieces can be processed, which is far from meeting the needs of production, and the processing quality cannot be guaranteed.

Invention content:

The object of the present invention is to overcome the shortcomings in the prior art, and provide a method and equipment for milling the cambered surface of the fist of the front axle of an automobile, which shortens the production cycle and improves the work efficiency.

In order to achieve the above object, the present invention provides a method for milling the curved surface of the fist part of the front axle of the automobile, which includes the following steps:

(1) Place the front axle of the automobile to be processed on the workpiece rotating bracket arranged above the workbench, insert the upper end of the rotating shaft fixedly connected with the workpiece rotating bracket into the kingpin hole of the fist of the automobile front axle to be processed, and place the workpiece fixed;

(2) The milling cutter works and rotates around its own axis;

(3) The power system works in the forward direction, the transmission mechanism drives the rotating shaft to rotate, and drives the front axle of the car to rotate and move on the workbench;

(4) The power system works in reverse, and the transmission mechanism drives the rotating shaft to rotate in reverse.

The power system is a hydraulic system, the transmission mechanism includes a gear and a rack, the gear is fixedly connected to the rotating shaft, the rack is meshed with the gear, and the rack is connected through a coupling to the piston rod of the hydraulic cylinder.

In order to achieve the above object, the present invention also provides an automobile front axle fist arc milling processing equipment used in the above processing method, including a bed, a power head, a disc milling cutter, a workbench, a hydraulic transmission system and a workpiece fixing The supporting device is characterized in that the power head is arranged on the top of the bed, the disc milling cutter is arranged on the power head, the hydraulic transmission system is arranged under the workbench, the The workpiece fixing support device is arranged above the workbench, and the axis of the disc milling cutter is parallel to the horizontal plane.

The hydraulic transmission system includes a hydraulic cylinder, a rack, a gear and a rotating shaft, the hydraulic cylinder is arranged below the workbench, the rack is fixedly connected to the piston rod of the hydraulic cylinder, and the rack meshed with the gear, the gear is fixedly arranged on the rotating shaft, and the rotating shaft is movably arranged on the workbench and its axis is perpendicular to the workbench.

The workpiece fixing and supporting device includes a workpiece rotating bracket and a workpiece fixing member, the workpiece rotating bracket is arranged above the workbench, one end of the workpiece rotating bracket is fixedly connected to the upper end of the rotating shaft, and the workpiece rotating bracket A rotating wheel is arranged under the other end, and the workpiece fixing member is arranged on the top of the rotating shaft.

The lower part of the workbench is also provided with a sliding seat fixing plate, and a rack supporting sliding seat is arranged on the sliding seat fixing plate, and the end of the rack near the gear is movably arranged in the rack supporting sliding seat .

The hydraulic cylinder is connected to the bottom of the workbench through a hydraulic cylinder fixing seat.

A gap adjustment screw is also arranged on the rack support slide.

The middle part of the rotating shaft is connected to the worktable through an upper bearing seat and a bearing, and the lower end is connected to the sliding seat fixing plate through a lower bearing seat and a bearing.

A workpiece stop block is also arranged on the workbench.

The outstanding advantages of the present invention are: the milling processing method of the present invention only needs one stroke to complete the milling of the curved surface of an automobile front axle fist, so that the production cycle is greatly shortened and the processing efficiency is greatly improved; the equipment of the present invention only needs to It takes about 65 seconds to complete the milling of the curved surface of a car front axle fist in one stroke, which greatly improves the processing efficiency, reduces the production cost, and is easy to operate, improves the processing accuracy, and guarantees the processing quality.

Description of drawings:

Fig. 1 is a process flow diagram of the present invention.

Fig. 2 is a front view of the overall structure of the milling processing equipment of the present invention.

FIG. 3 is a top view of FIG. 2 .

Detailed ways:

As shown in Figure 1, it is a process flow diagram of the present invention, that is, the method for milling the curved surface of the fist part of the automobile front axle of the present invention includes the following steps: (1) placing the automobile front axle to be processed on the top of the workbench On the rotating bracket of the workpiece, the upper end of the rotating shaft fixedly connected with the rotating bracket of the workpiece is inserted into the king pin hole of the fist part of the front axle of the automobile to be processed to fix the workpiece; (2) the milling cutter works and rotates around its own axis; (3) The power system works in the forward direction, and the transmission mechanism drives the rotating shaft to rotate, thereby driving the front axle of the car fixed on the rotating shaft to rotate and move around the axis of the rotating shaft on the worktable, so as to realize the milling of the arc surface of the fist part of the car front axle by the milling cutter ; (4) The power system works in reverse, and the transmission mechanism drives the rotating shaft to rotate in reverse, thereby driving the workpiece to return.

The power system in the above processing method can be a hydraulic system; the transmission mechanism can use a rack and pinion transmission pair, including a gear and a rack, the gear is fixedly connected to the rotating shaft, the rack is meshed with the gear, and the rack is connected through a coupling onto the piston rod of the hydraulic cylinder.

With reference to Fig. 2 and Fig. 3, the embodiment of the milling processing method of the present invention comprises the following steps: (1) the automobile front axle to be processed is placed on the workpiece rotating support 3 that is arranged on the workbench 1 top, and the workpiece rotating support 3. The upper end of the fixedly connected rotating shaft 7 is inserted into the kingpin hole of the fist part of the front axle of the automobile to be processed to fix the workpiece; (2) the disc milling cutter 9 works and rotates around its own axis; (3) the hydraulic cylinder 18 is forward Work, drive the rack 15 to move through the coupling 17, and then drive the gear 12 meshed with the rack 15 and the rotating shaft 7 fixedly connected with the gear 12 to rotate, thereby driving the front axle of the car fixed on the rotating shaft 7 to work The platform 1 rotates and moves around the axis of the rotating shaft 7 to realize the milling of the arc surface of the fist of the front axle of the automobile by the disc milling cutter 9; (4) the hydraulic cylinder 18 works in reverse, and the rotating shaft is driven by the rack 15 and the gear 12 7 Reverse rotation, thereby driving the workpiece to return.

As shown in Fig. 2 and Fig. 3, it is the front view and the top view of the arc milling processing equipment for the fist part of the automobile front axle of the present invention, including a workbench 1, a rotating wheel 2, a workpiece rotating support 3, a gap adjusting screw 4, and a rack Support sliding seat 5, upper bearing seat 6, rotating shaft 7, workpiece fixing part 8, disc milling cutter 9, power head 10, bed 11, gear 12, lower bearing seat 13, sliding seat fixing plate 14, rack 15 , hydraulic cylinder holder 16, shaft coupling 17, hydraulic cylinder 18 and stop block 19. Wherein, the power head 10 is arranged on the top of the bed 11, the disc milling cutter 9 is arranged on the power head 10, and the axis of the disc milling cutter 9 is parallel to the horizontal plane; the hydraulic transmission system includes a hydraulic cylinder 18, a rack 15, and a gear 12 And the rotating shaft 7, the hydraulic cylinder 18 is connected to the bottom of the workbench 1 through the hydraulic cylinder fixing seat 16, the rack 15 is fixedly connected to the piston rod of the hydraulic cylinder 18 through the coupling 17, the rack 15 is meshed with the gear 12, The gear 12 is fixedly arranged on the rotating shaft 7, the rotating shaft 7 is movably arranged on the workbench 1 and its axis is perpendicular to the workbench 1, the end of the rack 15 close to the gear 12 is arranged in the rack support slide 5, and the rack supports Sliding seat 5 is arranged on the sliding seat fixing plate 14, and sliding seat fixing plate 14 is arranged on the below of workbench 1, and the rack support sliding seat 5 is also provided with gap adjusting screw 4; Workpiece fixture 8, workpiece rotating support 3 is arranged on the top of workbench 1, and one end of workpiece rotating support 3 is fixedly connected with the upper end of rotating shaft 7, and the bottom of workpiece rotating support 3 other ends is provided with rotary wheel 2, and workpiece fixing member 8 is provided with On the top of the rotating shaft 7; the workbench 1 is also provided with a stop block 19.

The workpiece fixing member 8 can be a fastening nut or a fastening nut and a washer to be used together.

The rack support slide 5 is provided with a clearance adjusting screw 4 for adjusting the clearance between the rack 15 and the gear 12 .

According to the angle of the curved surface to be processed at the fist part of the automobile front axle, two stop blocks 19 can be arranged on the workbench 1, which can make the special machine for milling the curved surface of the fist part of the automobile front axle of the utility model more convenient to operate; The intersection point of the central axis of the shaft 7 and the workbench 1 is the center of the circle, and the angle formed by the two stoppers 19 at the center of the circle is equal to the angle of the arc surface that needs to be processed at the fist part of the front axle of the automobile.

The milling processing equipment for the curved surface of the fist part of the automobile front axle of the present invention adopts the milling processing method for the curved surface of the fist part of the automobile front axle of the present invention. It takes about 65 seconds, which greatly shortens the production cycle, improves the processing efficiency, reduces the production cost, and is easy to operate, improves the processing accuracy, and guarantees the processing quality.

Claims (10)

1. A method for milling the curved surface of the fist portion of an automobile front axle, characterized in that it comprises the following steps: (1) Place the front axle of the automobile to be processed on the workpiece rotating bracket arranged above the workbench, insert the upper end of the rotating shaft fixedly connected with the workpiece rotating bracket into the kingpin hole of the fist of the automobile front axle to be processed, and place the workpiece fixed; (2) The milling cutter works and rotates around its own axis; (3) The power system works in the forward direction, the transmission mechanism drives the rotating shaft to rotate, and drives the front axle of the car to rotate and move on the workbench; (4) The power system works in reverse, and the transmission mechanism drives the rotating shaft to rotate in reverse. 2. The method for milling the curved surface of the fist part of the front axle of the automobile according to claim 1, wherein the power system is a hydraulic system, the transmission mechanism includes a gear and a rack, and the gear is fixedly connected to the On the rotating shaft, the rack is meshed with the gear, and the rack is connected to the piston rod of the hydraulic cylinder through a coupling. 3. An automobile front axle fist arc milling processing equipment used in the processing method of claim 1, comprising a bed, a power head, a disc milling cutter, a workbench, a hydraulic transmission system and a workpiece fixing support device, which It is characterized in that the power head is arranged on the top of the bed, the disc milling cutter is arranged on the power head, the hydraulic transmission system is arranged under the workbench, and the workpiece fixing support device It is arranged above the workbench, and the axis of the disc milling cutter is parallel to the horizontal plane. 4. The arc surface milling equipment for the front axle fist of the automobile according to claim 3, wherein the hydraulic transmission system includes a hydraulic cylinder, a rack, a gear and a rotating shaft, and the hydraulic cylinder is arranged on the working Below the table, the rack is fixedly connected to the piston rod of the hydraulic cylinder, the rack is meshed with the gear, the gear is fixed on the rotating shaft, and the rotating shaft is movable on the on the workbench and its axis is perpendicular to the workbench. 5. According to claim 3 or 4, the arc milling processing equipment for the fist part of the front axle of the automobile is characterized in that, the workpiece fixing and supporting device includes a workpiece rotating bracket and a workpiece fixing member, and the workpiece rotating bracket is arranged on the Above the workbench, one end of the workpiece rotating bracket is fixedly connected to the upper end of the rotating shaft, a rotating wheel is arranged under the other end of the workpiece rotating bracket, and the workpiece fixing member is arranged on the top of the rotating shaft. 6. The arc surface milling equipment for the fist part of the front axle of the automobile according to claim 5, characterized in that, a sliding seat fixing plate is arranged under the workbench, and a rack support is arranged on the sliding seat fixing plate A slide seat, one end of the rack close to the gear is movably arranged in the rack support slide seat. 7. The arc milling equipment for the fist part of the front axle of the automobile according to claim 6, wherein the hydraulic cylinder is connected to the lower part of the workbench through a hydraulic cylinder fixing seat. 8. The arc milling processing equipment for the fist part of the front axle of the automobile according to claim 7, characterized in that, a gap adjustment screw is also arranged on the rack supporting slide. 9. The arc surface milling equipment for the fist part of the front axle of the automobile according to claim 8, characterized in that, the middle part of the rotating shaft is connected to the workbench through the upper bearing seat and the bearing, and the lower end is connected to the workbench through the lower bearing seat and the bearing. Bearings are attached to the carriage fixing plate. 10. The milling equipment for arc surface of the fist part of the front axle of the automobile according to claim 9, characterized in that, the workbench is also provided with a workpiece stop block.

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