Method for processing adjustment of magnesium alloy rod peeling device

Abstract

The present application relates to the technical field of magnesium alloy rod processing technology, specifically to a processing adjustment method of a magnesium alloy rod peeling device, step 1: adopt the way of hoisting to hoist the magnesium alloy rod into the above of each support assembly located on the horizontal machine tool, and adjust the spacing between each support assembly; Step 2: adjust the opening span of the two arc-shaped support plates on the support assembly according to the diameter of the rod; Step 3: use the auxiliary disc and the thimble on the horizontal machine tool to respectively tighten from both ends of the rod; Step 4, start the horizontal lathe to execute the turning program, the auxiliary disc and the thimble drive the rod to rotate, and the cutter peels and cuts the surface of the rod; Step 5, use the linear drive located at the bottom of the arc-shaped support part to dynamically adjust the height of each arc-shaped support plate during the processing process, so that the rod is stably supported during the processing process. The present application can improve the problem that the current magnesium alloy rod processing method may cause the positioning reference of the magnesium alloy rod to deviate, resulting in the increase of the size processing error.

Description

Technical Field

[0001] This invention relates to the technical field of magnesium alloy rod processing technology, specifically to a processing and adjustment method for a magnesium alloy rod peeling device. Background Technology

[0002] Magnesium alloys are widely used in vehicle manufacturing due to their excellent properties such as high strength and corrosion resistance. Initially, magnesium alloys are typically processed into cylindrical rods, which are large and heavy. An oxide layer forms on the surface, requiring trimming to remove the oxide layer before proceeding to subsequent processing steps.

[0003] The current peeling process involves turning the magnesium alloy rod on a horizontal lathe. First, the center of the marked circle is identified on both sides of the rod. Then, the tail end of the rod is placed in a three-jaw chuck for fixation, while the center of the other end is held in place by a center pin. A motor drives the rod to rotate, and the rod is peeled by a tool on a tool holder. However, the three-jaw chuck needs to clamp the rod at its outer circumference, which interferes with the cutting process. This method requires two separate operations, one at the beginning and one at the end, resulting in low efficiency. To address this issue, Chinese Patent Publication No. CN213701773U discloses a magnesium alloy rod peeling device. This device uses an auxiliary disc to rotate the magnesium alloy rod, increasing the fixing force and allowing the rod to be peeled in a single positioning operation. This reduces workload and effectively improves efficiency. For example, Chinese patent CN221363017U discloses a magnesium rod peeling machine, which uses a loading and positioning device on one side of the lathe to load and position the magnesium rod, and then uses a hydraulic device to fix the magnesium rod for processing. This eliminates the step of manually drilling a center hole and eliminates the need for manual fixing of the magnesium rod, thus improving production efficiency. In both of these processing devices, the clamping components do not interfere with the outer surface of the magnesium alloy rod during processing. Therefore, cutting can be completed directly after one clamping without the need to change the head and tail of the magnesium alloy rod, thereby improving processing efficiency. However, the above-mentioned prior art still has the following technical problems:

[0004] In actual processing, the aforementioned device clamps the magnesium alloy rod by applying pressure at both ends of the clamping component and then rotates it. Especially for large-volume, heavy rods that require crane lifting for loading and unloading, the weight of the magnesium alloy rod itself, the cutting force on the surface of the magnesium alloy rod during cutting, and the centrifugal force during the rotation of the rod can all easily cause the magnesium alloy rod to deviate from the central axis of the clamping point during processing. If the clamping positioning reference of the magnesium alloy rod deviates from the axis, it will lead to an increase in the outer diameter error of the cut magnesium alloy rod, and the processing quality cannot be guaranteed. Therefore, the market needs a processing method that can prevent the clamping positioning reference of the magnesium alloy rod from deviating from the axis during processing, so as to improve the processing quality. Summary of the Invention

[0005] This invention provides a processing adjustment method for a magnesium alloy rod peeling device, which can solve the problem that the clamping positioning reference is prone to deviating from the axis during the processing of magnesium alloy rods, resulting in an increase in the outer diameter error of the processed magnesium alloy rod, thereby improving the processing quality.

[0006] This application provides the following technical solution: a processing and adjustment method for a magnesium alloy rod peeling device, comprising the following steps:

[0007] Step 1: The magnesium alloy rod is hoisted into the horizontal machine tool above the various support assemblies by means of hoisting, and the spacing between the various support assemblies is adjusted. The support assemblies are used to achieve horizontal support for the rod.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] Beneficial effects:

[0013] 1. Dynamically adjust the support height to maintain a stable positioning reference during bar machining. During the peeling process, the diameter of the bar gradually decreases after cutting. In order not to interfere with the tool feed, the support components in the existing technology are removed before machining begins. This can cause the bar to deviate from the clamping positioning reference due to its own weight, tool cutting load, and centrifugal force during rotation, resulting in an increase in the outer diameter error of the machined magnesium alloy bar. The processing method of this invention uses steel balls on the support assembly to achieve point positioning of the bar stock. The steel balls are rotatably connected to the arc-shaped support plate, so that the steel balls support the bar stock without interfering with its rotation. Therefore, the support assembly always maintains support for the bar stock during the processing, ensuring that the bar stock does not deviate significantly from the positioning reference axis, thus improving the dimensional processing accuracy. In addition, as the cutting progresses, the outer diameter of the bar stock will gradually decrease, which may cause the steel balls to detach from the outer surface of the bar stock, resulting in the bar stock losing support. However, this processing method can dynamically increase the overall height of the arc-shaped support plate through a linear drive component. That is, the support height of the arc-shaped support plate is adjusted synchronously with the decrease in the diameter of the bar stock, so that the steel balls maintain point contact with the outer circumference of the bar stock, preventing the bar stock from deviating from the positioning reference. This fundamentally solves the problem of support failure and dimensional error caused by diameter changes, and significantly improves the accuracy and consistency of the outer diameter of the processed magnesium alloy bar.

[0014] 2. The arc-shaped support plate can be adjusted in span according to the diameter of the bar stock, improving its applicability. If a fixed-span support structure is used for magnesium alloy bars of different diameters, insufficient contact between the support points and the bar surface can easily occur. In this processing method, the arc-shaped support plate can be adjusted in span according to the diameter of the bar stock, so that the steel ball on the arc-shaped support plate can form a support point with the outer circle of the bar stock of different diameters in uniform contact, avoiding the situation where the support point of the bar stock is suspended, and improving adaptability.

[0015] Furthermore, 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.

[0016] Beneficial effects: If the bar stock ends are unsupported, the ends of the bar stock are similar to a cantilever structure during machining, and are prone to deviating from the clamping and positioning reference due to their own weight and the cutting pressure of the tool; while the end support assembly can directly support both ends of the bar stock, avoiding deviation due to the ends being suspended, ensuring that the overall central axis of the bar stock is always collinear with the auxiliary plate and the axis of the ejector pin, providing accurate and stable positioning support, thereby effectively improving the dimensional accuracy and pass rate of the bar stock after machining.

[0017] Furthermore, 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, so that 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 is within the range of 90°-120°.

[0018] Beneficial effects: Since the most stable support point for the bar stock is located within the 90°-120° range between the lower circumference and the center of the bar stock, if the opening span at both ends of the two arc-shaped support plates is too small, the support coverage of the steel ball on the bar stock will be insufficient, causing the support point of the steel ball on the bar stock to be close to the bottom of the bar stock, which can easily reduce the support stability. On the other hand, if the opening span at both ends of the two arc-shaped support plates is too large, the closer the steel ball is to the outer end of the arc-shaped support plate, the smaller the support effect of the steel ball on the bar stock, which can also easily reduce the support stability. Therefore, the part of the arc-shaped support plate closer to the outer end actually plays a smaller role, resulting in material waste. Therefore, reasonably limiting the opening span is beneficial to ensure that the support point of the steel ball on the bar stock is in a suitable position on the bar stock, ensuring support stability, and also saving the material cost of the arc-shaped support plate.

[0019] Furthermore, in step 5, the height adjustment amount of the arc-shaped support plate is: Δh = (D1) D2) / 2, where Δh is the height that the arc support plate needs to be lifted 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.

[0020] Beneficial effects: It can provide appropriate height compensation for the arc support plate according to the diameter change of the bar before and after cutting, ensuring that after each cutting, the height of the arc support plate is just right so that the steel ball can re-adhere to the outer wall of the bar after cutting to form a support state, maintain the stability of the bar, and improve the consistency and reliability of machining accuracy.

[0021] Furthermore, in step 5, the timing for raising the height of the arc-shaped support plate is as follows: 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 to raise the height Δh of the corresponding arc-shaped support plate.

[0022] Beneficial effects: It completely avoids the interference between tool cutting and support height adjustment. If the height of the arc-shaped support plate is adjusted before the tool leaves the section where the steel ball contacts the bar stock, the steel ball and the bar stock's outer circumference are still in contact. Adjusting the height at this time will cause the steel ball to exert an upward load on the bar stock, affecting the stability of the cutting process and accelerating the wear of the steel ball. However, after the tool passes the section, the outer circumference of the bar stock in that area has completed its current cutting. Raising the height of the arc-shaped support plate at this point will not interfere with the normal cutting process. It ensures that after height adjustment, the steel ball precisely re-fits the bar stock with its reduced diameter after cutting, avoiding the drooping and shifting of the bar stock during the support gap period, improving dimensional machining quality, and also preventing steel ball wear and extending its service life.

[0023] Furthermore, 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.

[0024] Beneficial effects: By calculating the axial length of the bar stock that will interfere with the steel ball during the distance the steel ball rises from the starting point to the position using the steel ball radius r and height compensation Δh, and then combining this with the tool feed speed v, the time t required for the tool to cut off this interfering portion of the steel ball during its ascent can be determined. Therefore, activating the linear drive after this time t ensures that after each section of bar stock is cut, the steel ball at the corresponding position will not be interfered with by the bar stock during its ascent. This allows for a more precise match between the contact rhythm of the steel ball and the cut bar stock, avoiding premature adjustments that could cause steel ball wear and affect the cutting stability of the bar stock, while also ensuring machining safety. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the present invention.

[0026] Figure 2 This is a diagram showing the usage state of the support assembly of the present invention.

[0027] Figure 3 This is a structural diagram of the support assembly of the present invention.

[0028] Figure 4 This is the invention Figure 3 Enlarged view of part A in the middle.

[0029] Figure 5 This is a partial exploded view of the present invention.

[0030] Figure 6 This is a structural diagram of the support frame of the present invention.

[0031] Figure 7 This is a schematic diagram of the contact state between the steel ball and the outer circumference of the bar stock in this invention. Detailed Implementation

[0032] The following detailed description illustrates the specific implementation method:

[0033] 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.

[0034] Example 1

[0035] 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.

[0036] 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.

[0037] like Figures 3 to 5 As shown, each arc-shaped support plate 3 includes a first supporting arc plate 31 and two second supporting arc plates 32. The first supporting arc plate 31 and the two second supporting arc plates 32 are located on the same circumference. An arc-shaped groove 311 is formed on the inner side of the first supporting arc plate 31. One end of each of the two second supporting arc plates 32 is slidably connected to the arc-shaped groove 311. Each steel ball 4 is evenly distributed above the first supporting arc plate 31 and the two second supporting arc plates 32. Figure 2 and Figure 3 Multiple rotating seats 5 are fixedly connected to the inner side of the arc-shaped support plate 3, and each steel ball 4 is rotatably connected within each rotating seat 5. In this embodiment, three rotating seats 5 are provided. One rotating seat 5 is fixedly connected to the inner side of the middle end of the first support arc plate 31. The steel ball 4 located on the inner side of the middle end can ensure effective support for the magnesium alloy rod. 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 magnesium alloy rod can be laterally limited and clamped by the other two steel balls 4.

[0038] like Figure 4 As shown, the first supporting arc plate 31 has multiple transverse through arc-shaped grooves 311 with insertion holes 312 on its side. Each insertion hole 312 is evenly spaced along the arc direction of the first supporting arc plate 31. The central axis of the arc-shaped grooves 311 and the central axis of the circumference formed by each insertion hole 312 are coaxial. Each of the two second supporting arc plates 32 has a central hole 321 that can communicate with the insertion hole 312 at one end near the middle of the first supporting arc plate 31. A central shaft 33 is also fixed on both sides of the two second supporting arc plates 32. The central shaft 33 is threaded into the two central holes 321 respectively. The end of the central shaft 33 away from the central hole 321 can be inserted into the insertion hole 312. When it is necessary to adjust the size of the arc support plate 3 according to the size of the magnesium alloy rod to be placed, each central shaft 33 can be removed, so that the second support arc plate 32 slides relative to the first support arc plate 31 along the arc groove 311. Then, the central shaft 33 is inserted into the connected insertion hole 312 and the central hole 321, and threaded to the central hole 321 to achieve size adjustment and ensure that the magnesium alloy rod can be accurately placed into the arc support plate 3.

[0039] like Figure 5 As shown, arc-shaped clamping grooves 313 are provided on both sides of the first support arc plate 31, and the arc-shaped clamping grooves 313 are coaxial with the first support arc plate 31.

[0040] like Figure 5As shown, the second support arc plate 32 is provided with multiple positioning holes 322 on the outer periphery of the central hole 321. The positioning holes 322 are circumferentially spaced with the corresponding central hole 321 as the central axis, and the radius of the circumference formed by each positioning hole 322 is equal to the distance between two adjacent insertion holes 312. The first support arc plate 31 is also provided with a positioning shaft 34, which passes through the insertion hole 312 and is threaded into the positioning hole 322 on the side of the second support arc plate 32. The outer periphery of the two second support arc plates 32 near the central hole 321 is set as an arc surface structure, and the arc surface structure is with the corresponding central hole 321 as the central axis to ensure that the second support arc plate 32 rotates smoothly relative to the first support arc plate 31 with the central 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 between the other ends 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 about the central axis 33. Then, the positioning shaft 34 is inserted into the connected insertion hole 312 and positioning hole 322 and threaded into the positioning hole 322 to maintain the relative distance between the other ends of the two second support arc plates 32, thereby supporting magnesium alloy rods of different diameters.

[0041] like Figure 5 As shown, each arc-shaped support plate 3 also includes four ear plates 35, two trunnions 36, and two ear rods 37. The four ear plates 35 are distributed in pairs at both ends of the first support arc plate 31. The two trunnions 36 are respectively distributed at both ends of the first support arc plate 31, and the two ends of the two trunnions 36 are rotatably connected to the corresponding two ear plates 35. The two ear rods 37 pass through and are threadedly connected to the two trunnions 36. The ends of the two ear rods 37 abut against the outer circumference of the two second support arc plates 32. The outer circumference of the two second support arc plates 32 is provided with multiple ear grooves 323. The ends of the two ear rods 37 abut against the ear grooves 323 of the two second support arc plates 32. The ear grooves 323 limit the abutment of the ear rods 37, ensuring that the ear rods 37 form a stable support for the second support arc plates 32.

[0042] After adjusting the relative distance between the other ends 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 central axis 33 as the central axis, the ear rod 37 can be rotated to press against the outer side of the corresponding second support arc plate 32, so that the ear rod 37 can simultaneously support the corresponding second support arc plate 32, thereby improving the support stability of the second support arc plate 32 on the magnesium alloy rod.

[0043] like Figure 2 , Figure 3 as well as Figure 6The support frame 2 includes a base 21 fixedly connected to the lower end of the horizontal lathe 1, a linear drive component 22 fixedly connected to the upper end of the base 21, a top seat 23 fixedly connected to the lower end of the linear drive component 22, and multiple limiting plates 24, each fixedly connected to the lower end of the base 21. The upper end of the top seat 23 is connected to a corresponding arc-shaped support plate 3. The linear drive component 22 can be a ball screw drive mechanism, synchronous belt drive, electric push rod, electric cylinder, cam mechanism, cylinder mechanism, or linear motor driven linear drive mechanism, etc. The drive end of the linear drive component 22 can be connected to the center position of the top seat 23. In this embodiment, the linear drive component 22 is shown as a cylinder. As a technically known method to those skilled in the art, the linear drive component 22 can be communicatively connected to the PLC controller of the horizontal machine tool 1 to control the start and stop of the linear drive component 22. As is known to those skilled in the art, a plurality of stepped grooves for fixing fixtures are provided through the worktable of the horizontal lathe 1. In this embodiment, a slider 211 is fixedly connected to the lower side of the base 21. The slider is adapted to and slidably connected to the stepped groove so as to change the distance between two adjacent support assemblies by sliding, thereby supporting magnesium alloy rods of different lengths. Of course, after sliding, the base 21 can be fixed by tightening the screws threaded to the worktable of the horizontal lathe 1, with the screws pressing against the base 21.

[0044] The top seat 23 includes an intermediate plate 231 whose bottom end is fixedly connected to the linear drive component 22, four upright plates 232 whose lower ends are all fixedly connected to the upper ends of the intermediate plate 231, two support members 233, and four clamping plates 234 whose lower ends are respectively fixedly connected to the upper ends of each upright plate 232. The two ends of the two support members 233 are respectively fixedly connected between the two upright plates 232, and the bottom middle of the first support arc plate 31 simultaneously abuts against the two support members 233. The four clamping plates 234 are respectively clamped on both axial sides of the arc-shaped support plate 3. In this embodiment, the support member 233 is preferably a round shaft, and its end is rotatably connected between the corresponding upright plates 232. During the installation of the magnesium alloy rod, the arc-shaped support plate 3 supports the magnesium alloy rod through the steel ball 4. The force on the arc-shaped support plate 3 can cause the support member 233 to rotate adaptively, adjusting the angle of the arc-shaped support plate 3 indirectly supporting the magnesium alloy rod.

[0045] like Figure 6As shown, the top seat 23 also includes four clamping members 235, one end of which is connected to the upper end of each clamping plate 234. The other end of each clamping member 235 extends into and is slidably connected to the corresponding arc-shaped clamping groove 313. By having the other end of each clamping member 235 extend into and be slidably connected to the corresponding arc-shaped clamping groove 313, the arc-shaped support plate 3 is further limited, ensuring that the arc-shaped support plate 3 indirectly provides stable support for the magnesium alloy rod. In this embodiment, the clamping member 235 is preferably a round shaft, and its end is rotatably connected to the corresponding clamping plate 234, so that when the first support arc plate 31 moves and adjusts its position, the clamping member 235 can reduce friction by rotating.

[0046] It should be noted that under the influence of gravity of the magnesium alloy rod and the clamping action of the magnesium alloy rod, the arc-shaped support plate 3 will not rotate arbitrarily relative to the top seat 23 during the peeling process, thus ensuring that the magnesium alloy rod is stably supported.

[0047] The processing and adjustment method of the magnesium alloy rod peeling device includes the following steps:

[0048] Step 1: The magnesium alloy rod is hoisted onto the various support assemblies on the horizontal lathe 1 using a hoisting method. It is essential to ensure the rod is suspended above the steel balls 4 on each support assembly, maintaining a gap between the rod and the balls 4 to allow for adjustment of the spacing between the support assemblies according to the rod's length. The spacing is adjusted via a slider 211 on the underside of the base. The slider 211 is fitted and slidably connected to a stepped groove on the worktable of the horizontal lathe 1, allowing the spacing between adjacent support assemblies to be changed by sliding, thus supporting magnesium alloy rods of different lengths. After sliding, the base 21 is fixed by tightening the screws threaded to the worktable of the horizontal lathe 1. When adjusting the spacing between the support assemblies, at least one support assembly must be located near both ends of the rod.

[0049] 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 multiple steel balls 4 evenly distributed above the arc-shaped support plates 3 can contact the surface of the bar stock, making the steel balls 4 support points on the outer circle of the bar stock. Specifically, during adjustment, each central shaft 33 can be removed first, so that the second support arc plate 32 slides relative to the first support arc plate 31 along the arc-shaped groove. Then, the central shaft 33 is inserted into the connected insertion hole 312 and the central hole 321, and threaded into the central 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 angle formed by the outer ends of the two arc-shaped support plates and the clamping positioning center of the bar stock should be within the range of 90°-120° to ensure the support stability of the bar stock. Meanwhile, the relative distance between the other ends 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 central axis 33 as the central axis. Then, the positioning shaft 34 is inserted into the connected insertion hole 312 and positioning hole 322 and threaded into the positioning hole 322 to maintain the relative distance between the other ends of the two second support arc plates 32, ensuring that for magnesium alloy rods of different diameters, the steel ball 4 can contact the outer circumferential surface of the rod to form an effective support point.

[0050] Step 3: After the position, spacing and opening span of the support assembly and the arc support plate 3 are adjusted, control the crane to stably drop the bar onto the steel ball 4, and then use the auxiliary plate 11 and ejector pin 12 on the horizontal machine tool 1 to tighten it from both ends of the bar.

[0051] Step 4: Start the horizontal lathe 1 to execute the turning program. Driven by the auxiliary plate 11 and the ejector pin 12, the bar stock rotates and the cutting tool feeds from one end of the bar stock to the other end to remove the outer skin of the bar stock.

[0052] Step 5: During the processing, the PLC controller on the horizontal machine tool 1 controls the movement of the linear drive component 22, thereby dynamically adjusting the height of each arc support plate 3. As the cutting progresses, the height of the arc support plate 3 corresponding to the reduced outer diameter of the bar will be adaptively increased, so that the steel ball 4 remains in contact with the outer periphery of the bar, and the bar is stably supported during the processing.

[0053] Specifically, the height adjustment amount of this arc-shaped support plate 3 is: Δh = (D1) D2) / 2, where Δh is the height that the arc support plate 3 needs to be lifted 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.

[0054] like Figure 7As shown, the timing for raising the arc-shaped support plate 3 is as follows: after the cutter passes the cross-section corresponding to the contact point between the steel ball 4 and the bar stock on a certain support assembly, the linear drive component 22 is activated after a time t, raising the corresponding arc-shaped support plate 3 by a height Δh. In the formula, r is the radius of the steel ball 4, and v is the feed rate of the tool.

[0055] The axial length of the section of the bar that will interfere with the steel ball during its ascent from the starting point to the ending point is calculated using the steel ball radius *r* and height compensation *Δh*. This length, combined with the tool feed rate *v*, determines the time *t* required for the tool to cut away this interfering portion of the rising steel ball. Therefore, activating the linear drive after this time *t* ensures that after each section of bar is cut, the corresponding steel ball will not interfere with the rising bar. This more precisely matches the contact rhythm between the steel ball and the cut bar, preventing premature adjustments that could cause steel ball wear and affect the cutting stability of the bar, while also ensuring machining safety. After the entire bar section is machined, the magnesium alloy bar is lifted away, and the next bar is hoisted for machining.

[0056] The above are merely embodiments of the present invention, and the invention is not limited to the fields covered by these embodiments. Commonly known structures and characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret 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 processing, the height of each arc-shaped support plate is dynamically adjusted using a linear drive unit located at the bottom of the arc-shaped support section. As cutting progresses, the height of the arc-shaped support plate corresponding to the decrease in the outer diameter of the bar stock will be adaptively increased, ensuring that the steel ball remains in contact with the outer circumference of the bar stock, thus providing stable support for the bar stock during processing. The height adjustment amount of the arc-shaped support plate is: Δh = (D1) D2) / 2, where Δh is the height the arc-shaped support plate needs to be raised after a single cutting operation, in mm; D1 is the diameter of the bar stock before cutting, in mm; D2 is the diameter of the bar stock after cutting, in mm; the timing for raising the arc-shaped support plate is as follows: after the tool 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 to raise the corresponding arc-shaped support plate height Δh; after the tool 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, where the time... In the formula, r is the radius of the steel ball, and v is the feed rate of the tool.

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°.

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