Processing adjusting method of magnesium alloy bar peeling device

Abstract

The invention relates to the technical field of magnesium alloy bar processing technologies, in particular to a processing adjusting method of a magnesium alloy bar peeling device, which comprises the following steps: step 1, hoisting a magnesium alloy bar above each support assembly on a horizontal machine tool in a hoisting manner, and adjusting the distance between the support assemblies; 2, the opening span of two arc-shaped supporting plates on the supporting assembly is adjusted according to the diameter of the bar; 3, an auxiliary disc and an ejector pin on the horizontal machine tool are used for abutting against the two ends of the bar correspondingly; 4, the horizontal lathe is started to execute a turning program, the auxiliary disc and the ejector pin drive the bar to rotate, and the cutter peels and cuts the surface of the bar; and 5, in the machining process, the heights of all the arc-shaped supporting plates are dynamically adjusted through linear driving pieces located at the bottoms of the arc-shaped supporting parts, so that the bars are stably supported in the machining process. According to the method, the problem that the size machining error is increased due to the fact that positioning reference deviation possibly occurs to the magnesium alloy rod in an existing magnesium alloy rod machining method can be solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a magnesium alloy rod machining process, in particular to a processing adjustment method of a magnesium alloy rod peeling device. BACKGROUND

[0002] Magnesium alloy is widely used in vehicle manufacturing due to its high strength, corrosion resistance and other excellent properties. The magnesium alloy is initially processed into a cylindrical rod body, which is large in volume, heavy in weight and has an oxide layer on the surface. The magnesium alloy rod needs to be cut and peeled before entering the subsequent processing flow.

[0003] The current peeling process is to use a horizontal lathe to peel off the rod by using a pin. First, the center of the magnesium alloy rod is marked on both sides, then the tail end of the magnesium alloy rod is fixed in the three-jaw chuck, the other end is pushed by the center pin, the motor drives the magnesium alloy rod to rotate, and the tool on the tool holder peels off the magnesium alloy rod. The three-jaw chuck needs to be clamped on the outer circle of the magnesium alloy rod, so it will interfere with the cutting of the tool, which requires the head and tail to be exchanged twice, resulting in low efficiency. To improve the problem of needing to exchange the head and tail twice, a magnesium alloy rod peeling device is disclosed in Chinese Patent No. CN213701773U, which drives the magnesium alloy rod to rotate by an auxiliary disc, increases the fixing force, and completes the peeling in one positioning, reduces the work intensity, and effectively improves the work efficiency. For example, Chinese Patent No. CN221363017U discloses a magnesium rod peeling machine, which positions the magnesium rod through an upper positioning device arranged on one side of the lathe, and fixes the magnesium rod for processing through a hydraulic device, thereby eliminating the step of manually drilling a center hole and eliminating the need for manual magnesium rod fixing, thereby improving production efficiency. The clamping parts of the above two processing devices do not interfere with the outer surface of the magnesium alloy rod during processing, so the cutting can be completed directly after one-time clamping, without the need for head and tail exchange of the magnesium alloy rod, thereby improving the processing efficiency. However, the above prior art still has the following technical problems: During actual processing, the magnesium alloy rod is clamped by the pressure of the clamping parts at both ends and then rotated. Especially for large-volume and heavy rod materials that need to be lifted by a crane for feeding and discharging, the magnesium alloy rod itself has a gravitational force, the cutting force on the surface of the magnesium alloy rod during cutting, and the centrifugal force during rotation of the rod, all of which can easily cause the magnesium alloy rod to deviate from the center axis of the clamping point during processing. If the clamping and positioning reference of the magnesium alloy rod deviates from the axis, the outer diameter error of the cut magnesium alloy rod will increase, and the processing quality cannot be guaranteed. Therefore, the market needs a processing method that can prevent the clamping and positioning reference of the magnesium alloy rod from deviating from the axis during processing to improve the processing quality. SUMMARY

[0004] The application provides a processing adjustment method of a magnesium alloy rod peeling device, which can solve the problem that the magnesium alloy rod is prone to deviating from the shaft center during processing, thereby increasing the outer diameter size error of the magnesium alloy rod after processing, and improves the processing quality.

[0005] The application provides the following technical scheme: a processing adjustment method of a magnesium alloy rod peeling device, comprising the following steps: Step 1: the magnesium alloy rod is hoisted into the upper part of each support assembly located on the horizontal machine tool in a hoisting manner, and the spacing between each support assembly is adjusted, and the support assembly is used for realizing horizontal support of the rod material; Step 2: the opening span of the two arc-shaped support plates on the support assembly is adjusted according to the diameter of the rod material, so that the plurality of steel balls uniformly distributed above the arc-shaped support plates can be in contact with the surface of the rod material, the steel balls are rotationally connected to the arc-shaped support plates, and the support points of the outer circle of the rod material can be formed; Step 3: after the rod material is completely dropped onto the arc-shaped support plates, the auxiliary disc and the thimble on the horizontal machine tool are used to tightly press from both ends of the rod material; Step 4, start the horizontal lathe to execute the turning program, the auxiliary disc and the thimble drive the rod material to rotate, the cutter is fed from one end of the rod material to the other end, and the surface of the rod material is peeled and cut; Step 5, the height of each arc-shaped support plate is dynamically adjusted by using the linear driving element located at the bottom of the arc-shaped support part during the processing, and the height of the arc-shaped support plate corresponding to the reduced part of the outer diameter of the rod material is adaptively increased, so that the steel ball is in contact with the outer periphery of the rod body, and the rod material is stably supported during the processing.

[0006] Advantages: 1. The method dynamically adjusts the support height to maintain the stability of the positioning reference during the processing of the bar material. During the peeling process, the diameter of the bar material will gradually decrease after cutting. In order to avoid interference with the feed of the tool, the support components in the prior art will be removed before the processing starts, which will cause the bar material to deviate from the clamping positioning reference due to its own gravity, tool cutting load and centrifugal force during rotation, resulting in an increase in the outer diameter size error of the processed magnesium alloy bar. The processing method of the present application realizes point positioning of the bar material through the steel ball on the support assembly. The steel ball is rotationally connected to the arc-shaped support plate, so that the steel ball realizes support for the bar material without interfering with the rotation of the bar material. Therefore, the support assembly maintains the support state of the bar material during the processing process, ensures that the bar material does not deviate significantly from the central axis of the positioning reference, improves the size processing precision, and in addition, as the cutting proceeds, the outer diameter of the bar material will gradually decrease, so that the steel ball and the outer peripheral surface of the bar material will be separated, causing the bar material to lose support. The linear drive can dynamically raise the overall height of the arc-shaped support plate, that is, as the diameter of the bar body decreases, the support height of the arc-shaped support plate is adjusted synchronously, so that the steel ball and the outer periphery of the bar body maintain point contact, preventing the bar material from deviating from the positioning reference, fundamentally solving the problem of support failure and size error caused by diameter change, and significantly improving the precision and consistency of the outer diameter size of the processed magnesium alloy bar.

[0007] 2. The arc-shaped support plate can adjust the span according to the diameter of the bar material, improving the applicability. If the support structure with fixed span is used for magnesium alloy bars with different diameters, the problem of insufficient contact between the support point and the surface of the bar body may occur. The arc-shaped support plate in the processing method can adjust the span of the arc-shaped support plate according to the diameter of the bar material, so that the steel balls on the arc-shaped support plate can form uniform contact support points with the outer circles of bar bodies with different diameters, avoiding the situation of suspended support points of the bar material, and improving the adaptability.

[0008] Further, in step 1, when adjusting the distance between each support assembly, at least one support assembly near the ends of the bar material should be ensured.

[0009] Beneficial effect: If the bar material is not supported at the end, the end of the bar body is similar to a cantilever structure during processing, which is prone to deviate from the clamping positioning reference due to its own gravity and tool cutting pressure; the end support assembly can directly lift both ends of the bar material, avoiding deviation of the bar body due to the suspended end, ensuring that the overall central axis of the bar body is always collinear with the axis of the auxiliary disc and the center pin, providing accurate and stable positioning support, thereby effectively improving the size precision and yield of the processed bar material.

[0010] Further, in step 2, the opening span of the two arc-shaped support plates on the support assembly is adjusted according to the diameter of the bar material, which should satisfy that the fan-shaped included angle formed by the outer ends of the two arc-shaped support plates and the clamping positioning center of the bar material is within the range of 90°-120°.

[0011] Beneficial effects: Because the most stable support point of the bar is in the range of 90°-120° between the lower periphery of the bar and the axis of the bar, if the opening span of the two ends of the two arc-shaped support plates is too small, the coverage of the steel ball on the bar will be insufficient, the support point of the steel ball on the bar will tend to the bottom of the steel, and the support stability will be easily reduced; if the opening span of the two ends of the two arc-shaped support plates is too large, the steel ball is arranged closer to the outer end of the arc-shaped support plate, and the support effect of the steel ball on the bar will be smaller, which will also easily reduce the support stability, so the part closer to the outer end of the arc-shaped support plate plays a smaller role, causing material waste, therefore, reasonable limitation of the opening span is beneficial to the support point of the steel ball on the bar being at a suitable position of the bar, ensuring the support stability, and saving the material cost of the arc-shaped support plate.

[0012] Further, in step 5, the height adjustment amount of the arc-shaped support plate is Δh= (D1-D2) / 2, wherein Δh is the height of the arc-shaped support plate to be raised after single cutting processing, unit: mm; D1 is the diameter of the bar before cutting, unit: mm; and D2 is the diameter of the bar after cutting, unit: mm.

[0013] Beneficial effects: The suitable height compensation amount of the arc-shaped support plate can be provided according to the diameter change of the bar before and after cutting, so that after each cutting, the height of the arc-shaped support plate can be just enough to make the steel ball adhere to the outer wall of the bar body after cutting to form a support state, maintain the stability of the bar, and improve the consistency and reliability of the processing precision.

[0014] Further, in step 5, the timing of the height of the arc-shaped support plate is to start the linear drive to raise the height Δh of the corresponding arc-shaped support plate after the cutter passes through the section corresponding to the contact point of the steel ball and the bar on the support assembly.

[0015] Beneficial effects: The action interference of the cutter cutting and the support height adjustment can be completely avoided, if the height of the arc-shaped support plate is adjusted when the cutter has not left the section where the steel ball and the bar are in contact, because the outer periphery size of the bar has not been reduced at this time, and the steel ball and the bar are in contact, therefore, the height adjustment at this time will cause the steel ball to generate upward load on the bar, affecting the stability of the bar cutting, and will also accelerate the wear of the steel ball. After the cutter passes through the section, the outer periphery of the bar in this area has completed the current cutting, at this time, the height of the arc-shaped support plate is raised, which will not interfere with the normal cutting process of the cutter, ensure that the steel ball adheres to the bar body with a reduced diameter after cutting, avoid the bar drooping deviation caused by the support blank period, improve the size processing quality, and also avoid the wear of the steel ball, and improve the service life of the steel ball. Further, in step 5, after the cutter passes through the cross section corresponding to the contact point between the steel ball on the support assembly and the bar, the linear driving member is started after a time t , wherein r is the radius of the steel ball, and v is the feed speed of the cutter.

[0016] Beneficial effects: the axial length of the bar that will interfere with the steel ball in the distance calculated by the steel ball radius r and the height compensation amount Δh from the starting point to the position, combined with the cutter feed speed v, determines the time t spent by the cutter to cut the length of the interfering steel ball when it rises, therefore, the linear driving member is started after the time t, which ensures that the steel ball will not be interfered by the bar when it rises after the cutter finishes cutting a certain length of the bar, and more accurately matches the contact rhythm of the steel ball and the cut bar, avoids premature adjustment causing the steel ball to wear and affects the stability of the bar cutting, while ensuring the safety of the machining. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structural diagram of the present application.

[0018] Figure 2 is the use state diagram of the support assembly of the present application.

[0019] Figure 3 is the structural diagram of the support assembly of the present application.

[0020] Figure 4 is the enlarged view of part A in the present application. Figure 3

[0021] Figure 5 is the partial exploded view of the present application.

[0022] Figure 6 is the structural diagram of the support frame of the present application. Figure 7 is the contact state diagram of the steel ball and the outer circumference of the bar in the present application. DETAILED DESCRIPTION

[0023] The following will be further described in detail through specific embodiments: ​The markings in the accompanying drawings of the instruction manual include: 1. Horizontal lathe; 11. Auxiliary plate; 12. Ejector pin; 2. Support frame; 21. Base; 211. Slider; 22. Linear drive component; 23. Top seat; 231. Intermediate plate; 232. Vertical plate; 233. Support component; 234. Clamping plate; 235. Clamping component; 24. Limiting plate; 3. Arc-shaped support plate; 31. First support arc plate; 311. Arc-shaped slide groove; 312. Insertion hole; 313. Arc-shaped clamping groove; 32. Second support arc plate; 321. Center hole; 322. Positioning hole; 323. Ear groove; 33. Central shaft; 34. Positioning shaft; 35. Ear plate; 36. Trunnion; 37. Ear rod; 4. Steel ball; 5. Rotary seat.

[0024] Example 1 The processing and adjustment method for magnesium alloy rod peeling devices requires the use of specialized magnesium alloy peeling equipment, such as... Figures 1 to 6 As shown, the device includes a horizontal lathe 1, which is equipped with an auxiliary plate 11 and an ejector pin 12. It also includes at least two support assemblies spaced apart on the worktable of the horizontal lathe and aligned in a straight line. Each support assembly is arranged between the auxiliary plate 11 and the ejector pin 12 to provide support for the magnesium alloy rod. Figure 1 As shown, the auxiliary disk 11 and the ejector pin 12 are components of the horizontal lathe 1, used to clamp the magnesium alloy rod from both ends. The structure of the auxiliary disk 11 and the ejector pin 12 is prior art and will not be described in detail here.

[0025] like Figure 2 and Figure 3 As shown, each support assembly includes a support frame 2, an arc-shaped support plate 3, and at least three steel balls 4. The lower end of the support frame 2 is connected to the worktable of the horizontal lathe 1. The arc-shaped support plate 3 is arc-shaped with an open structure at the top. The included angle of the arc-shaped structure formed by the arc-shaped support plate 3 does not exceed 120° to ensure that the magnesium alloy rod can be smoothly placed into the arc-shaped support plate 3. The middle end of the arc-shaped support plate 3 is connected to the upper end of the corresponding support frame 2. Each steel ball 4 is evenly distributed on the inner side of the arc of the corresponding arc-shaped support plate 3 and is rotatably connected to the corresponding arc-shaped support plate 3. The number of steel balls 4 can be three, four, five, or six, etc. By setting at least three steel balls 4, at least three points of support can be formed for the magnesium alloy rod to ensure the stability of the support for the magnesium alloy rod. At the same time, during the installation process, the rotation of the steel balls 4 facilitates the rotation of the magnesium alloy rod and also facilitates the axial adjustment of the position of the magnesium alloy rod. There are no fewer than three support assemblies to ensure that when a section of the magnesium alloy rod is peeled at a certain point in time, and the corresponding steel ball 4 is removed from the support of the magnesium alloy rod, the other support assemblies can still provide at least two effective supports for the magnesium alloy rod, so as to ensure the stability of the magnesium alloy rod during the peeling process.

[0026] like Figures 3 to 5As shown, each arc-shaped support plate 3 comprises a first support arc plate 31 and two second support arc plates 32, the first support arc plate 31 and the two second support arc plates 32 are located on the same circumference, the inner side of the first support arc plate 31 is provided with an arc-shaped sliding groove 311, one end of the two second support arc plates 32 is respectively connected in the arc-shaped sliding groove 311, and each steel ball 4 is uniformly distributed above the first support arc plate 31 and the two second support arc plates 32. Figure 2 and Figure 3 The inner side of the arc-shaped support plate 3 is fixedly connected with a plurality of rotating seats 5, and each steel ball 4 is rotatably connected in each rotating seat 5. In the embodiment, the rotating seat 5 is provided with three, one of which is fixedly connected to the inner side of the middle end of the first support arc plate 31, and the steel ball 4 located in the inner side of the middle end can ensure effective support of the magnesium alloy rod, and the other two rotating seats 5 are respectively fixedly connected to the inner side of the other end of the two second support arc plates 32, and the other two steel balls 4 can realize lateral limiting clamping of the magnesium alloy rod.

[0027] As shown in Figure 4 , the first support arc plate 31 is provided with a plurality of insertion holes 312 penetrating the arc-shaped sliding groove 311 on the side surface, each insertion hole 312 is uniformly distributed along the arc direction of the first support arc plate 31, the center axis of the arc-shaped sliding groove 311 and the center axis of the circumference formed by each insertion hole 312 are coaxial, and one end of the two second support arc plates 32 close to the middle part of the first support arc plate 31 is provided with a center hole 321 which can communicate with the insertion hole 312; the two side surfaces of the two second support arc plates 32 are also fixedly provided with a center shaft 33, the center shaft 33 is respectively screwed into the two center holes 321, and one end of the center shaft 33 away from the center hole 321 can be inserted into the insertion hole 312. When it is necessary to adjust the size of the arc-shaped support plate 3 according to the size of the magnesium alloy rod to be placed, the center shaft 33 can be taken out, so that the second support arc plate 32 slides along the arc-shaped sliding groove 311 relative to the first support arc plate 31, and then the center shaft 33 is inserted into the connected insertion hole 312 and center hole 321 and screwed into the center hole 321 to realize size adjustment and ensure that the magnesium alloy rod can be accurately placed into the arc-shaped support plate 3.

[0028] As shown in Figure 5 , the first support arc plate 31 is provided with an arc-shaped clamping groove 313 on both sides, and the arc-shaped clamping groove 313 is coaxial with the first support arc plate 31.

[0029] As shown in Figure 5As shown, the outer periphery of the second support arc plate 32 at the center hole 321 is also provided with a plurality of positioning holes 322, the positioning holes 322 are distributed in a circumferential direction with the corresponding center hole 321 as the central axis, and the radius of the circumference formed by each positioning hole 322 is equal to the distance between the adjacent two insertion holes 312; the first support arc plate 31 is also provided with a positioning shaft 34, the positioning shaft 34 passes through the insertion hole 312 and is threadedly connected in the positioning hole 322 on the side surface of the second support arc plate 32. The outer periphery of one end of the two second support arc plates 32 near the center hole 321 is provided as a circular arc surface structure, and the circular arc surface structure is centered on the corresponding center hole 321, so as to ensure that the second support arc plate 32 rotates smoothly relative to the first support arc plate 31 with the center axis 33 as the central axis. When adjusting the size of the arc-shaped support plate 3 by sliding the second support arc plate 32 relative to the first support arc plate 31, the relative distance of the other end of the two second support arc plates 32 can be adjusted by rotating the second support arc plate 32 relative to the first support arc plate 31 with the center axis 33 as the central axis, then the positioning shaft 34 is inserted into the connected insertion hole 312 and positioning hole 322, and is threadedly connected in the positioning hole 322, so as to maintain the relative distance of the other end of the two second support arc plates 32, thereby supporting the magnesium alloy rods of different diameters.

[0030] As shown in Figure 5 Each arc-shaped support plate 3 further includes four ear plates 35, two ear shafts 36 and two ear rods 37, the four ear plates 35 are distributed at two ends of the first support arc plate 31, the two ear shafts 36 are respectively distributed at two ends of the first support arc plate 31, and the two ends of the two ear shafts 36 are respectively rotationally connected to the corresponding two ear plates 35, the two ear rods 37 are respectively threaded on the two ear shafts 36, and the ends of the two ear rods 37 are respectively abutted to the outer circumferential sides of the two second support arc plates 32. The outer circumferential sides of the two second support arc plates 32 are provided with a plurality of ear grooves 323, and the ends of the two ear rods 37 are respectively abutted to the ear grooves 323 of the two second support arc plates 32. The ear rods 37 are limited by the abutment of the ear grooves 323, so as to ensure that the ear rods 37 form stable support for the second support arc plate 32.

[0031] After adjusting the relative distance of the other end of the two second support arc plates 32 by rotating the second support arc plate 32 relative to the first support arc plate 31 with the center axis 33 as the central axis, the ear rods 37 are rotated to abut against the outer sides of the corresponding second support arc plates 32, so that the ear rods 37 simultaneously support the corresponding second support arc plates 32, thereby improving the support stability of the second support arc plate 32 for the magnesium alloy rod.

[0032] As shown in Figure 2 , Figure 3 and Figure 6The support frame 2 comprises a base 21 fixedly connected to the horizontal lathe 1 at the lower end, a linear driving member 22 fixedly connected to the upper end of the base 21, a top base 23 fixedly connected to the lower end of the linear driving member 22, and a plurality of limiting plates 24 each fixedly connected to the base 21 at the lower end. The upper end of the top base 23 is connected to the corresponding arc-shaped support plate 3. The linear driving member 22 can be a ball screw transmission mechanism, a synchronous belt transmission, an electric push rod, an electric cylinder, a cam mechanism, a cylinder mechanism, a linear motor driving mechanism, etc. The driving end of the linear driving member 22 is drivingly connected to the center position of the top base 23. In this embodiment, the linear driving member 22 is a cylinder. As a known technical means to those skilled in the art, the linear driving member 22 can be communicatively connected to the PLC controller of the horizontal lathe 1 to facilitate the start and stop of the linear driving member 22. As known to those skilled in the art, a plurality of stepped grooves for fixing clamps are provided through the workbench of the horizontal lathe 1. In this embodiment, the lower side of the base 21 is fixedly connected with a sliding block 211 which is slidingly connected to the stepped grooves to change the distance between two adjacent support assemblies by sliding to support magnesium alloy rods of different lengths. After sliding, the base 21 can be fixed by tightening the screws which are screwed to the workbench of the horizontal lathe 1, and the screws abut against the base 21.

[0033] The top base 23 comprises a middle plate 231 fixedly connected to the linear driving member 22 at the bottom end, four vertical plates 232 each fixedly connected to the upper end of the middle plate 231, two support members 233 each fixedly connected between two vertical plates 232, and four clamping plates 234 each fixedly connected to the upper end of each vertical plate 232. The two ends of the two support members 233 are fixedly connected between the two vertical plates 232, and the middle end of the bottom of the first support arc plate 31 abuts against the two support members 233. The four clamping plates 234 are clamped to the two sides of the arc-shaped support plate 3 in the axial direction. The support member 233 in this embodiment is preferably a circular shaft rotatably connected between the corresponding vertical plates 232. During the process of supporting the magnesium alloy rod by the arc-shaped support plate 3 through the steel ball 4, the arc-shaped support plate 3 is stressed to adaptively rotate the support member 233 to adjust the angle of the arc-shaped support plate 3 indirectly supporting the magnesium alloy rod.

[0034] As Figure 6As shown, the top base 23 further comprises four clamping members 235, each of which is connected to the upper end of the corresponding clamping plate 234. The other end of each clamping member 235 extends into and is slidingly connected to the corresponding arc-shaped clamping groove 313. In this way, the further positioning of the arc-shaped support plate 3 is achieved, and the stable support of the magnesium alloy rod is indirectly ensured. In this embodiment, the clamping member 235 is preferably a circular shaft, and the end portion is rotatably connected to the corresponding clamping plate 234. In this way, when the first support arc plate 31 is moved and adjusted, the clamping member 235 can reduce friction by rotating.

[0035] It should be noted that under the action of the gravity of the magnesium alloy rod and the clamping of the magnesium alloy rod, the arc-shaped support plate 3 will not rotate relative to the top base 23 during the peeling process, i.e., the magnesium alloy rod can be stably supported.

[0036] The processing and adjusting method of the magnesium alloy rod peeling device comprises the following steps: Step 1: The magnesium alloy rod is hoisted and placed above each support assembly on the horizontal lathe 1, but it is necessary to ensure that the rod is suspended above the steel ball 4 on each support assembly, i.e., a gap is left between the rod and the steel ball 4, so as to move and adjust the distance between each support assembly according to the length of the rod. The distance between the support assemblies is adjusted by the sliding block 211 on the bottom side of the base, which is adapted and slidingly connected to the stepped groove on the workbench of the horizontal lathe 1. In this way, the distance between the adjacent two support assemblies can be changed by sliding, so as to support magnesium alloy rods of different lengths. After sliding, the base 21 can be fixed by tightening the screw connected to the workbench of the horizontal lathe 1. When adjusting the distance between each support assembly, it is necessary to ensure that at least one support assembly is located near the ends of the rod. Step 2: Adjust the opening span of the two arc-shaped support plates 3 on the support assembly according to the diameter of the bar stock, so that the plurality of steel balls 4 uniformly distributed above the arc-shaped support plates 3 can be in contact with the surface of the bar stock, and the steel balls 4 form support points on the outer circle of the bar stock. Specifically, during adjustment, the center shaft 33 can be removed first, so that the second support arc plate 32 slides along the arc-shaped slot relative to the first support arc plate 31, and then the center shaft 33 is inserted into the connected insertion hole 312 and center hole 321 and is screwed into the center hole 321 to achieve size adjustment and ensure that the magnesium alloy bar can be accurately placed into the arc-shaped support plate 3. In addition, during adjustment, the fan-shaped included angle formed by the outer ends of the two arc-shaped support plates and the center of the clamped and positioned bar stock should be within the range of 90°-120° to ensure the stability of the support of the bar stock. At the same time, the relative distance of the other end of the two second support arc plates 32 can also be adjusted by rotating the second support arc plate 32 relative to the first support arc plate 31 about the center shaft 33 as the central axis, and then the positioning shaft 34 is inserted into the connected insertion hole 312 and positioning hole 322 and is screwed into the positioning hole 322 to maintain the relative distance of the other end of the two second support arc plates 32, ensuring that the steel balls 4 can be in contact with the outer peripheral surface of the bar stock to form effective support points for magnesium alloy bars of different diameters.

[0037] Step 3: After the position, spacing, and opening span of the arc-shaped support plate 3 of the support assembly are adjusted, the crane is controlled to stably drop the bar stock onto the steel balls 4, and then the auxiliary disc 11 and the ejector pin 12 on the horizontal machine tool 1 are used to tightly press from both ends of the bar stock.

[0038] Step 4: Start the horizontal lathe 1 to execute the turning program. Under the driving of the auxiliary disc 11 and the ejector pin 12, the bar stock rotates, and the cutter feeds from one end of the bar stock to the other end to perform skinning and cutting of the surface of the bar stock.

[0039] Step 5: During the machining process, the PLC controller on the horizontal machine tool 1 is used to control the linear drive 22 to act, thereby dynamically adjusting the height of each arc-shaped support plate 3. As the cutting proceeds, the height of the arc-shaped support plate 3 corresponding to the reduced diameter of the outer periphery of the bar stock will be adaptively raised, so that the steel balls 4 remain in contact with the outer periphery of the bar body, and the bar stock is stably supported during the machining process.

[0040] Specifically, the height adjustment amount of the arc-shaped support plate 3 is: Δh= (D1-D2) / 2, where Δh is the height that the arc-shaped support plate 3 needs to be raised after single cutting, in mm; D1 is the diameter of the bar stock before cutting, in mm; and D2 is the diameter of the bar stock after cutting, in mm.

[0041] As Figure 7As shown, the timing of the lifting height of the arc-shaped support plate 3 is to start the linear driving member 22 after a time t after the tool passes the cross section corresponding to the contact point of the steel ball 4 on the support assembly and the bar, and the height Δh of the corresponding arc-shaped support plate 3 is lifted. , wherein r is the radius of the steel ball 4, and v is the feed speed of the tool.

[0042] The axial length of the bar that will interfere with the steel ball in the distance from the starting point to the terminal position calculated by the steel ball radius r and the height compensation amount Δh, combined with the tool feed speed v, determines the time t spent by the tool to cut off the length of the interfering steel ball when lifting. Therefore, the linear driving member is started after the time t, which ensures that the corresponding position of the steel ball will not be interfered by the bar when it is lifted after the tool cuts off a length of the bar, and more accurately matches the contact rhythm of the steel ball and the cut bar, avoids premature adjustment causing the steel ball to wear and affects the stability of the bar cutting, and at the same time ensures the safety of the machining. After the whole bar is machined, the magnesium alloy bar is taken out by hoisting, and the next bar is hoisted for machining.

[0043] The above is only an embodiment of the present application, and the present application is not limited to this embodiment. The specific structure and characteristics of the scheme known in the art are not described in detail. It should be noted that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A processing and adjustment method for a magnesium alloy rod peeling device, characterized in that, The process includes the following steps: Step 1: The magnesium alloy rod is hoisted into the upper part of each support assembly on the horizontal machine tool by means of hoisting, and the spacing between each support assembly is adjusted. The support assembly is used to achieve horizontal support for the rod. Step 2: Adjust the opening span of the two arc-shaped support plates on the support assembly according to the diameter of the bar stock, so that the multiple steel balls evenly distributed above the arc-shaped support plates can contact the surface of the bar stock. The steel balls are rotated and connected to the arc-shaped support plates, which can form support points for the outer circle of the bar stock. Step 3: After the bar stock has completely fallen onto the arc-shaped support plate, use the auxiliary plate and ejector pin on the horizontal machine tool to clamp it from both ends. Step 4: Start the horizontal lathe to execute the turning program. The auxiliary plate and the center drive the bar to rotate. The cutting tool feeds from one end of the bar to the other end to remove the outer skin of the bar. Step 5: During the processing, the height of each arc support plate is dynamically adjusted using the linear drive component located at the bottom of the arc support section. As the cutting progresses, the height of the arc support plate corresponding to the point where the outer diameter of the bar decreases will be adaptively increased, so that the steel ball remains in contact with the outer periphery of the bar, and the bar is stably supported during the processing.

2. The processing and adjustment method of the magnesium alloy rod peeling device according to claim 1, characterized in that: In step 1, when adjusting the spacing between the various support assemblies, it is necessary to ensure that there is at least one support assembly near both ends of the bar stock.

3. The processing and adjustment method of the magnesium alloy rod peeling device according to claim 2, characterized in that: In step 2, the opening span of the two arc-shaped support plates on the support assembly is adjusted according to the diameter of the bar stock. The fan-shaped angle formed by the outer ends of the two arc-shaped support plates and the clamping and positioning center of the bar stock should be in the range of 90°-120°.

4. The processing and adjustment method of the magnesium alloy rod peeling device according to claim 3, characterized in that: In step 5, the height adjustment of the arc-shaped support plate is: Δh = (D1-D2) / 2, where Δh is the height that the arc-shaped support plate needs to be raised after a single cutting process, in mm; D1 is the diameter of the bar stock before cutting, in mm; and D2 is the diameter of the bar stock after cutting, in mm.

5. The processing and adjustment method of the magnesium alloy rod peeling device according to claim 4, characterized in that: In step 5, the timing for raising the height of the arc-shaped support plate is when the linear drive is activated to raise the height Δh of the corresponding arc-shaped support plate after the cutter passes the cross section corresponding to the contact point between the steel ball and the bar on a certain support assembly.

6. The processing and adjustment method of the magnesium alloy rod peeling device according to claim 5, characterized in that: In step 5, after the cutter passes the cross-section corresponding to the contact point between the steel ball and the bar stock on a certain support assembly, the linear drive is activated after a time t. In the formula, r is the radius of the steel ball, and v is the feed rate of the tool.

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