Metal precision milling equipment adaptive to special-shaped workpiece

Abstract

The invention relates to the technical field of milling, and discloses metal precision milling equipment matched with a special-shaped workpiece, the metal precision milling equipment comprises a milling machine and a placement table, the placement table is fixedly connected to the top of the milling machine, positioning lifting assemblies, transverse moving assemblies and special-shaped clamping assemblies are symmetrically arranged on the two sides of the placement table, and each special-shaped clamping assembly comprises four distance increasing rods; the four distance increasing rods are distributed on the outer side of the containing table in a rectangular shape, and the bottom of each distance increasing rod is rotationally connected with a first rotating block. Through the multi-stage rotating connection relation of the first rotating block and the second rotating block, the angle can be adjusted in a self-adaptive mode according to the outline of the outer wall of the special-shaped workpiece, the anti-abrasion block and the outer wall of the workpiece form surface contact attachment, meanwhile, the adjustable limiting block can limit the rotating amplitude, insufficient clamping force caused by excessive rotation is avoided, the clamping stability is guaranteed, and the clamping effect is improved. The risk that the surface of the workpiece is crushed is reduced; and the position of the clamping assembly can be quickly locked through the embedded matching of the I-shaped limiting block and the dry-shaped groove.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of milling, in particular to a metal precision milling equipment suitable for special-shaped workpieces. BACKGROUND

[0002] In the field of metal processing, the milling equipment is the core equipment for realizing the cutting forming of metal parts, and the performance of its clamping assembly directly determines the machining precision and efficiency of special-shaped workpieces.

[0003] Currently, the metal milling equipment on the market has the following disadvantages when clamping and processing special-shaped workpieces (especially asymmetric special-shaped workpieces and special-shaped workpieces of different heights). First, the height of the clamping assembly of the existing milling equipment is mostly fixed. When facing special-shaped workpieces of different height specifications, the height position of the clamping assembly cannot be adjusted independently, and can only be adapted by adding auxiliary pads or replacing special clamping components. This operation method is cumbersome, increases the clamping preparation time, and is prone to introduce additional positioning deviations due to pad thickness errors and new component clamping gaps, thereby affecting the precision of subsequent milling.

[0004] Secondly, the horizontal moving mechanism of the clamping assembly of the existing milling equipment mostly adopts a single guide structure. During the movement of the clamping assembly towards or away from the workpiece, it is prone to deviation and jamming, and cannot guarantee that the clamping assembly always moves accurately along the preset trajectory, which may cause positioning errors in the subsequent clamping of special-shaped workpieces. At the same time, the clamping jaws of the existing milling equipment are mostly rigid fixed structures and do not have a self-adaptive angle adjustment function. When they contact the outer wall of a special-shaped workpiece, they can only form point or line contact, making it difficult to achieve full adhesion. Moreover, the traditional clamping structure lacks effective rotation amplitude limiting components, and is prone to excessive rotation during clamping, which may result in insufficient clamping force, affecting the stability of clamping and easily causing damage to the workpiece surface due to uneven clamping force distribution, leading to workpiece scrap.

[0005] Finally, the clamping structure of the existing milling equipment is mostly designed for one-time fixing. After clamping and positioning, if the clamping position needs to be adjusted or the workpiece needs to be replaced, the clamping structure needs to be disassembled and reassembled, which is complex and time-consuming, and cannot meet the flexible production needs of small-batch processing of various special-shaped workpieces. The clamping assembly of the existing milling equipment mostly adopts a symmetrical synchronous driving structure, and the clamping components on both sides can only move synchronously and equidistantly, which cannot be adjusted for differential displacement for asymmetric special-shaped workpieces with protrusions on one side or large differences in curvature between the two sides. In actual processing, special clamping jaws need to be customized to adapt to asymmetric special-shaped workpieces, which not only significantly increases production costs but also severely limits the processing application range of the milling equipment.

[0006] Therefore, it is necessary to provide a metal precision milling equipment suitable for special-shaped workpieces to solve the above problems. SUMMARY

[0007] In view of the deficiencies of the prior art, the present application aims to provide a metal precision milling equipment suitable for special-shaped workpieces.

[0008] To achieve the above object, the present application provides the following technical scheme: a metal precision milling equipment suitable for special-shaped workpieces, comprising a milling machine and a placement table, the placement table being fixedly connected to the top of the milling machine, and the placement table being symmetrically provided on both sides with a positioning and lifting assembly, a transverse moving assembly and a special-shaped clamping assembly; The special-shaped clamping assembly comprises four distance increasing rods, the four distance increasing rods being arranged in a rectangular distribution on the outside of the placement table, a first rotating block being rotatably connected to the bottom of each distance increasing rod, a second rotating block being symmetrically rotatably connected to the inside of each first rotating block, an anti-wear block being symmetrically rotatably connected to the inside of each second rotating block, and an adjustable limiting block being sleeved to the bottom of each distance increasing rod.

[0009] Preferably, the top of the milling machine is provided with the positioning and lifting assembly, the positioning and lifting assembly comprising a moving positioning frame, a horizontal lifting groove being symmetrically formed in the inside of the moving positioning frame, a lifting sliding block group being slidably connected to the inside of the horizontal lifting groove, and a hydraulic rod being installed at the bottom of the horizontal lifting groove.

[0010] Preferably, the two sides of the placement table are provided with the transverse moving assembly, the transverse moving assembly comprising a fixed plate, the fixed plate being fixedly connected to the outer wall of the lifting sliding block group, a servo motor being symmetrically installed in the inside of the fixed plate, a reciprocating screw rod being fixedly connected to the output shaft of each servo motor, a transverse moving block being threadedly connected to the outer wall of each reciprocating screw rod, and a recessed groove sliding block being fixedly connected to the outer wall of each transverse moving block.

[0011] Preferably, the transverse moving assembly further comprises a positioning block group, the positioning block group being fixedly connected to the side of the fixed plate away from the lifting sliding block group, a positioning column being fixedly connected between the positioning block group, and a recessed groove plate being fixedly connected to the bottom of the fixed plate.

[0012] Preferably, the transverse moving assembly further comprises a dry groove, the dry groove being formed at the top of the recessed groove sliding block, and a work-like limiting block being slidably connected to the inside of the dry groove.

[0013] Preferably, the adjustable limiting block is arranged on the rotating path of the first rotating block.

[0014] Preferably, the output shaft of the hydraulic rod is fixedly connected to the bottom of the lifting sliding block group.

[0015] Preferably, the transverse moving block is slidingly connected to the inner part of the fixed plate, each two of the groove sliders are slidingly connected to the outer wall of the positioning column, and each group of the groove sliders is slidingly connected to the top of the groove plate.

[0016] Preferably, the workpiece limiting block is embedded in the dry groove.

[0017] Preferably, the bottom of each distance increasing rod is connected to a first rotating block through an arc-shaped slider, the inner part of the first rotating block is connected to a second rotating block through a pin shaft, forming a two-stage rotating structure, which can flexibly adjust the angle according to the workpiece contour; the anti-wear block is made of polyurethane material, and the surface anti-slip design can not only improve the clamping friction, but also avoid damaging the workpiece surface.

[0018] Compared with the prior art, the metal precision milling equipment for adapting to special-shaped workpieces has the following beneficial effects: Through the multi-stage rotating connection relationship between the first rotating block and the second rotating block, the angle can be adjusted according to the contour of the outer wall of the special-shaped workpiece, so that the anti-wear block is in surface contact with the outer wall of the workpiece, and the limiting block can be adjusted to limit the rotation amplitude, so that the clamping force is not insufficient due to excessive rotation, the stability of clamping is ensured, and the risk of workpiece surface being pressed is reduced.

[0019] Through the embedding cooperation of the workpiece limiting block and the dry groove, the position of the clamping assembly can be quickly locked to ensure that the workpiece will not be displaced due to the milling force during the milling process; meanwhile, the unlocking operation is simple, and the clamping position can be re-adjusted without complex disassembly, which greatly shortens the time for replacing workpieces or adjusting the clamping posture, and meets the needs of small-batch processing of various special-shaped workpieces.

[0020] The device adopts two groups of independently controlled servo motors and reciprocating lead screws, which can respectively drive the two groove sliders to move different distances, flexibly adjust the clamping position according to the actual contour size of the two sides of the asymmetric special-shaped workpiece, realize precise fitting without customizing special clamping jaws, completely solve the technical limitation of the traditional equipment that can only adapt to symmetric workpieces, and expand the machining application range of the milling equipment.

[0021] The clamping assembly of the traditional milling equipment is fixed in height, and when facing different height special-shaped workpieces, it is necessary to add a pad or replace the clamping part to adjust the height, which is complicated and easy to introduce positioning errors. The scheme drives the subsequent assembly to rise and fall as a whole by means of the hydraulic rod driving lifting slider group, can flexibly adjust the height position of the special-shaped clamping assembly, can realize effective contact with different height special-shaped workpieces without additional auxiliary parts, greatly simplifies the operation process of height adaptation, and improves the efficiency of clamping preparation work.

[0022] The recessed sliding block of the equipment synchronously slides along the outer wall of the positioning column and the top of the recessed plate, forms a double-guiding constraint structure, can effectively limit the deviation and shaking in the moving process, ensures that the special-shaped clamping assembly always moves accurately along the preset track, and provides a stable displacement basis for the accurate fitting clamping of the special-shaped workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the position relationship of the overall device in the application; Figure 2 It is a sectional view of the overall device in the application; Figure 3 It is a schematic diagram of the position relationship of the recessed sliding block, rotating rod and first rotating block in the application; Figure 4 It is a schematic diagram of the position relationship of the recessed sliding block, rotating rod and first rotating block in the application; Figure 3 It is an enlarged view of structure A in the application; Figure 5 It is a schematic diagram of the position relationship of the moving positioning frame, horizontal lifting groove and lifting sliding block group in the application; Figure 6 It is a schematic diagram of the position relationship of the positioning block group, positioning column and recessed sliding block in the application; Figure 7 It is a schematic diagram of the position relationship of the fixed plate, servo motor, reciprocating screw rod and transverse moving block in the application; Figure 8 It is an enlarged view of structure B in the application; Figure 7 Figure 9 It is a schematic diagram of the position relationship of the fixed plate and recessed plate in the application.

[0024] Reference signs: 11, milling machine; 12, placement table; The positioning and lifting assembly comprises: 21, a moving positioning frame; 22, a horizontal lifting groove; 23, a lifting sliding block group; 24, a hydraulic rod; The transverse moving assembly comprises: 31, a fixed plate; 32, a servo motor; 33, a reciprocating screw rod; 34, a transverse moving block; 35, a positioning block group; 36, a positioning column; 37, a recessed sliding block; 38, a dry groove; 39, a work-shaped limiting block; 310, a recessed plate; The special-shaped clamping assembly comprises: 41, an increased distance rod; 42, a first rotating block; 43, a second rotating block; 44, an anti-wear block; 45, an adjustable limiting block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the application clearer and more apparent, the application will be further described in detail below in combination with the drawings and examples, and it should be understood that the specific examples described herein are only used to explain the application and do not limit the application. ​

[0026] In the description of this invention, the terms “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] Implementation, for example Figures 1 to 4 As shown, a precision metal milling device adapted to irregularly shaped workpieces is provided in an embodiment of the present invention, including a milling machine 11 and a placement table 12. The placement table 12 is fixedly connected to the top of the milling machine 11, and a positioning lifting component, a lateral moving component, and an irregularly shaped clamping component are symmetrically arranged on both sides of the placement table 12. The irregular clamping assembly includes four extension rods 41, which are arranged in a rectangular pattern on the outside of the placement platform 12. Each extension rod 41 is rotatably connected to a first rotating block 42 at its bottom. Each first rotating block 42 is symmetrically rotatably connected to a second rotating block 43 inside. Each second rotating block 43 is symmetrically rotatably connected to an anti-wear block 44 inside. Each extension rod 41 is fitted with an adjustable limiting block 45 at its bottom.

[0029] It should be noted that: the adjustable limit block 45 is set on the rotation path of the first rotating block 42 to limit the rotation angle of the first rotating block 42; the bottom of each extension rod 41 is connected to the first rotating block 42 through an arc-shaped slider, and the first rotating block 42 is connected to the second rotating block 43 through a pin, forming a two-stage rotation structure that can flexibly adjust the angle according to the workpiece contour; the second rotating block 43 has a polyurethane anti-wear block 44 fixed inside, and the surface anti-slip texture design improves the clamping friction and avoids damage to the workpiece surface. The adjustable limit block 45 at the bottom of the extension rod 41 is fixed by a threaded engagement to limit the maximum rotation angle of the first rotating block 42, prevent insufficient clamping force due to excessive rotation, and ensure structural stability after bonding.

[0030] like Figure 5 As shown, a positioning and lifting assembly is provided on the top of the milling machine 11. The positioning and lifting assembly includes a movable positioning frame 21. A horizontal lifting groove 22 is symmetrically opened inside the movable positioning frame 21. A lifting slider group 23 is slidably connected inside the horizontal lifting groove 22. A hydraulic rod 24 is installed at the bottom of the horizontal lifting groove 22.

[0031] It needs to be explained: the output shaft of the hydraulic rod 24 is fixedly connected at the bottom of the lifting slide block group 23, which is used to control the lifting and lowering of the horizontal position of the special-shaped clamping assembly; the movable positioning frame 21 is connected with the milling machine 11 through a linear guide rail at the bottom, can move horizontally along the direction of the placing table 12 and be locked and positioned, the hydraulic rod 24 is equipped with a pressure regulating valve and a hydraulic lock, which can adjust the lifting degree according to the weight of the workpiece, and can stably lock the lifting slide block group 23 at any height, which is prior art, and will not be described here.

[0032] As shown in Figures 6 to 9 The placing table 12 is provided with a transverse moving assembly on both sides, which includes a fixed plate 31 fixedly connected to the outer wall of the lifting slide block group 23, and a servo motor 32 symmetrically installed inside the fixed plate 31, and a reciprocating screw rod 33 fixedly connected to the output shaft of the two servo motors 32, and a transverse moving block 34 threadedly connected to the outer wall of the two reciprocating screw rods 33, and a recessed groove slide block 37 fixedly connected to the outer wall of the two transverse moving blocks 34.

[0033] The transverse moving assembly further includes a positioning block group 35 fixedly connected to the side of the fixed plate 31 away from the lifting slide block group 23, and a positioning column 36 fixedly connected between the positioning block group 35, and a recessed groove plate 310 fixedly connected to the bottom of the fixed plate 31.

[0034] The transverse moving assembly further includes a dry-shaped groove 38 opened at the top of the recessed groove slide block 37, and a work-shaped limiting block 39 slidably connected inside the dry-shaped groove 38.

[0035] It needs to be explained: the transverse moving block 34 is slidably connected inside the fixed plate 31, every two recessed groove slide blocks 37 are a group of slide blocks slidably connected to the outer wall of the positioning column 36, and each group of recessed groove slide blocks 37 is slidably connected to the top of the recessed groove plate 310, which is used to ensure the stability of the movement of the recessed groove slide block 37; the work-shaped limiting block 39 is embedded with the dry-shaped groove 38, which is used to limit the position of the recessed groove slide block 37 through the dry-shaped groove 38.

[0036] In combination with the above-mentioned embodiments, the following is the working process and working principle of the above-mentioned embodiments: Working principle: Different height workpiece clamping steps: When clamping workpieces of different heights, the hydraulic rod 24 is first activated. The output shaft of the hydraulic rod 24 drives the lifting slider assembly 23 to rise or fall along the horizontal lifting groove 22. The movement of the lifting slider assembly 23 synchronously drives the lateral moving component and the irregular clamping component to move as a whole. By controlling the extension and retraction stroke of the hydraulic rod 24, the horizontal height of the irregular clamping component can be flexibly adjusted, which facilitates the irregular clamping component to clamp the workpiece on the placement table 12. This ensures that the irregular clamping component can effectively contact the outer wall of irregular workpieces of different heights and sizes during subsequent clamping processes, without the need to replace the special clamping parts.

[0037] Traditional milling equipment has a fixed clamping component height. When dealing with irregularly shaped workpieces of varying heights, the height needs to be adjusted by adding shims or replacing clamping components, which is cumbersome and prone to introducing positioning errors. This solution uses a hydraulic rod 24 to drive the lifting slider assembly 23, which in turn raises and lowers the entire subsequent assembly. This allows for flexible adjustment of the height position of the irregularly shaped clamping component, achieving effective contact with workpieces of different heights without the need for additional auxiliary components. This significantly simplifies the height adaptation process and improves the efficiency of clamping preparation.

[0038] Stable horizontal movement: After the height adaptation is completed, the servo motor 32 is started, and the output shaft of the servo motor 32 drives the reciprocating screw 33 to rotate. Since the lateral moving block 34 is threadedly connected to the reciprocating screw 33, the rotational motion of the reciprocating screw 33 is converted into the horizontal linear displacement of the lateral moving block 34 along the inside of the fixed plate 31. The displacement of the lateral moving block 34 synchronously drives the groove slider 37 to move. During this process, the groove slider 37 slides along the outer wall of the positioning post 36 and the top of the groove plate 310, avoiding the offset and jamming of the groove slider 37 during the movement, thereby ensuring the accuracy of the movement trajectory of the irregular clamping component.

[0039] The groove slider 37 of this device slides synchronously along the outer wall of the positioning post 36 and the top of the groove plate 310, forming a double guide constraint structure, which can effectively limit the offset and shaking during the movement process, ensuring that the irregular clamping component always moves accurately along the preset trajectory, providing a stable displacement basis for the subsequent accurate fitting and clamping of irregular workpieces.

[0040] Steps for clamping irregularly shaped workpieces: During the clamping process of the irregular workpiece, it is necessary to drive the moving positioning frame 21 to move towards the placement table 12, and then drive the extension rod 41, the first rotating block 42, and the second rotating block 43 to move towards the irregular workpiece on the placement table 12 simultaneously through the groove slider 37. The second rotating block 43 is the first to contact the outer wall of the workpiece. By means of the rotational connection between the second rotating block 43 and the first rotating block 42, and the rotational connection between the first rotating block 42 and the bottom of the extension rod 41, the irregular contour of the outer wall of the workpiece will force the second rotating block 43 and the first rotating block 42 to rotate adaptively, thereby driving the anti-wear block 44 inside the second rotating block 43 to fit tightly against the outer wall of the workpiece. Meanwhile, the adjustable limiting block 45, which is sleeved on the bottom of the extending rod 41, is located on the rotation path of the first rotating block 42. When the first rotating block 42 rotates to a preset angle, the adjustable limiting block 45 restricts its continued rotation to avoid excessive rotation amplitude leading to insufficient clamping force. By adjusting the position of the adjustable limiting block 45 on the extending rod 41, it can also adapt to the outer wall of irregularly shaped workpieces with different curvatures, effectively improving the adaptability of clamping.

[0041] Through the multi-stage rotational connection between the first rotating block 42 and the second rotating block 43, the angle can be adaptively adjusted according to the outer contour of the irregular workpiece, so that the anti-wear block 44 forms a surface contact fit with the outer wall of the workpiece. At the same time, the adjustable limit block 45 can limit the rotation amplitude, avoid insufficient clamping force due to excessive rotation, ensure the stability of clamping, and reduce the risk of the workpiece surface being crushed.

[0042] Clamping and unlocking steps: After the irregular workpiece is clamped and positioned, the I-shaped limiting block 39 is embedded into the dry groove 38 at the top of the two adjacent groove sliders 37. The interlocking structure of the I-shaped limiting block 39 and the dry groove 38 restricts the relative displacement of the two groove sliders 37, thereby fixing the clamping position of the irregular clamping assembly and ensuring that the workpiece will not be displaced due to milling force during the milling process. If it is necessary to adjust the clamping position or change to a workpiece of different specifications, simply remove the I-shaped limiting block 39 from the dry groove 38 to release the restriction on the groove sliders 37, and then drive the transverse moving assembly to move again through the servo motor 32. The interlocking structure of the I-shaped limiting block 39 and the dry groove 38 satisfies the dual requirements of stable clamping and rapid adjustment. This structural design makes up for the shortcomings of traditional clamping equipment that can only fix workpieces with specific contours, and realizes that one clamping structure can adapt to the processing needs of multiple types of irregular workpieces.

[0043] By engaging the I-shaped limiting block 39 with the dry groove 38, the position of the clamping component can be quickly locked, ensuring that the workpiece will not be displaced due to milling force during the milling process; at the same time, the unlocking operation is simple, and the clamping position can be readjusted without complicated disassembly, which greatly shortens the time for changing workpieces or adjusting the clamping posture, and meets the needs of small-batch processing of various types of irregular workpieces.

[0044] Asymmetric irregular workpiece adaptation: Two independent servo motors 32 and reciprocating lead screws 33 can operate independently without interfering with each other. By adjusting the number of rotations of either servo motor 32, the corresponding reciprocating lead screw 33 can be rotated to different strokes, thereby driving the grooved sliders 37 on both sides to move different horizontal distances along the positioning post 36 and the grooved plate 310.

[0045] For asymmetrical irregular workpieces (such as workpieces with a protrusion on one side or a large difference in curvature between the two sides), the operating parameters of the servo motors 32 on both sides can be set according to the actual contour dimensions of the two sides of the workpiece. For the side with a protruding contour or a large curvature, the corresponding servo motor 32 is controlled to drive the reciprocating screw 33 to rotate more times, so that the groove slider 37 on that side drives the extension rod 41, the first rotating block 42, and the second rotating block 43 to move a greater distance, ensuring that the anti-wear block 44 is tightly fitted with the outer wall of the workpiece; for the side with a gentle contour or a concave contour, the corresponding servo motor 32 is controlled to shorten its operating stroke, so that the clamping component on that side can complete the fitting by moving a shorter distance.

[0046] This equipment uses two independently controlled servo motors 32 and reciprocating lead screws 33, which can drive the side groove sliders 37 to move different distances respectively. The clamping position can be flexibly adjusted according to the actual contour size of the two sides of the asymmetrical workpiece. Precise fitting can be achieved without the need for customized special clamping claws, which completely solves the technical limitation of traditional equipment that "can only be adapted to symmetrical workpieces" and expands the processing application range of milling equipment.

[0047] While several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included within the scope and spirit of the invention, and are included within the scope of the invention as described in the claims and its equivalents.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision metal milling machine adapted to irregularly shaped workpieces, comprising a milling machine (11) and a placement table (12), wherein the placement table (12) is fixedly connected to the top of the milling machine (11), characterized in that, The placement platform (12) is symmetrically provided with a positioning lifting component, a lateral moving component, and an irregular clamping component on both sides; The irregular clamping assembly includes four extension rods (41), which are arranged in a rectangular pattern on the outside of the placement platform (12). Each extension rod (41) has a first rotating block (42) rotatably connected to its bottom. Each first rotating block (42) has a second rotating block (43) symmetrically rotatably connected inside. Each second rotating block (43) has a wear-resistant block (44) symmetrically rotatably connected inside. Each extension rod (41) has an adjustable limiting block (45) sleeved on its bottom.

2. The precision milling equipment for metal processing adapted to irregularly shaped workpieces according to claim 1, characterized in that, The milling machine (11) is provided with a positioning and lifting assembly on its top. The positioning and lifting assembly includes a movable positioning frame (21). The movable positioning frame (21) has symmetrically opened horizontal lifting grooves (22) inside. The horizontal lifting grooves (22) are slidably connected to a lifting slider group (23). A hydraulic rod (24) is installed at the bottom of the horizontal lifting grooves (22).

3. The precision milling equipment for metal processing adapted to irregularly shaped workpieces according to claim 1, characterized in that, The placement platform (12) is provided with lateral moving components on both sides. The lateral moving components include a fixed plate (31). The fixed plate (31) is fixedly connected to the outer wall of the lifting slider group (23). Servo motors (32) are symmetrically installed inside the fixed plate (31). Reciprocating screws (33) are fixedly connected to the output shafts of the two servo motors (32). Lateral moving blocks (34) are threadedly connected to the outer walls of the two reciprocating screws (33). Grooved sliders (37) are fixedly connected to the outer walls of the two lateral moving blocks (34).

4. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 3, characterized in that, The lateral movement assembly also includes a positioning block group (35), which is fixedly connected to the side of the fixed plate (31) away from the lifting slider group (23). Positioning columns (36) are fixedly connected between the positioning block groups (35), and a groove plate (310) is fixedly connected to the bottom of the fixed plate (31).

5. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 4, characterized in that, The lateral movement component also includes a dry groove (38), which is formed on the top of the groove slider (37), and an I-shaped limiting block (39) is slidably connected inside the dry groove (38).

6. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 1, characterized in that, The adjustable limit block (45) is positioned on the rotation path of the first rotating block (42).

7. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 2, characterized in that, The output shaft of the hydraulic rod (24) is fixedly connected to the bottom of the lifting slider assembly (23).

8. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 4, characterized in that, The transverse moving block (34) is slidably connected inside the fixed plate (31), and every two grooved sliders (37) are slidably connected to the outer wall of the positioning post (36), and each set of grooved sliders (37) is slidably connected to the top of the grooved plate (310).

9. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 5, characterized in that, The I-shaped limiting block (39) is fitted into the dry groove (38).

10. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 1, characterized in that, Each of the aforementioned extension rods (41) is connected to the first rotating block (42) at its bottom via an arc-shaped slider. The first rotating block (42) is connected to the second rotating block (43) via a pin, forming a two-stage rotating structure that can flexibly adjust the angle according to the workpiece contour. The wear-resistant block (44) is made of polyurethane, and the surface anti-slip texture design not only improves the clamping friction but also avoids damage to the workpiece surface.

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