Metal precision milling equipment suitable for special-shaped workpieces

Abstract

The application relates to the field of milling technology and discloses a metal precision milling equipment suitable for special-shaped workpieces, which comprises a milling machine and a placing table, the placing 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 placing table, the special-shaped clamping assemblies comprise four distance increasing rods, the four distance increasing rods are arranged in a rectangular distribution mode on the outer side of the placing table, and a first rotating block is rotatably connected to the bottom of each distance increasing rod; through the multi-stage rotating connection relationship between the first rotating block and a second rotating block, the angle can be self-adaptively adjusted according to the outer wall contour of the special-shaped workpiece, the anti-abrasion block is in surface contact with the outer wall of the workpiece, meanwhile, the adjusting limiting block can limit the rotating amplitude, the insufficient clamping force caused by excessive rotation is avoided, the stability of clamping is ensured, and the risk that the workpiece surface is pressed is reduced; through the embedded cooperation of the work-shaped limiting block and the dry-shaped groove, the position of the clamping assembly can be quickly locked.

Description

Technical Field

[0001] This invention relates to the field of milling, and more specifically to a precision metal milling device adapted to irregularly shaped workpieces. Background Technology

[0002] In the field of metal processing, milling equipment is the core equipment for cutting and shaping metal parts, and the performance of its clamping components directly determines the processing accuracy and efficiency of irregularly shaped workpieces.

[0003] Currently available metal milling equipment generally suffers from the following drawbacks when clamping and machining irregularly shaped workpieces (especially asymmetrical or irregularly shaped workpieces of varying heights): First, the clamping components of existing milling equipment are mostly fixed in height. When faced with irregularly shaped workpieces of different heights, the height of the clamping components cannot be adjusted independently. Adaptation can only be achieved by adding auxiliary pads or replacing them with specialized clamping parts. This method is cumbersome, increasing preparation time and easily introducing additional positioning deviations due to pad thickness errors or gaps in the clamping of new parts, thus affecting the accuracy of subsequent milling operations.

[0004] Secondly, the horizontal moving mechanism of the clamping components in existing milling equipment mostly adopts a single guide structure. During the movement of the clamping components towards or away from the workpiece, problems such as offset and jamming are prone to occur. It is impossible to ensure that the clamping components are always accurately displaced along the preset trajectory, which will create a hidden danger of positioning error for the subsequent clamping of irregular workpieces. At the same time, the clamping jaws of existing milling equipment are mostly rigid fixed structures and do not have adaptive angle adjustment functions. When in contact with the outer wall of irregular workpieces, they can only form point contact or line contact, which is difficult to achieve full fit. Moreover, the traditional clamping structure lacks an effective rotation amplitude limiting component, which is prone to excessive rotation during the clamping process, resulting in insufficient clamping force. This not only affects the clamping stability, but also easily damages the workpiece surface due to uneven distribution of clamping force, causing the workpiece to be scrapped.

[0005] Finally, the clamping structures of existing milling equipment are mostly one-time fixed designs. After clamping and positioning, if it is necessary to adjust the clamping position or change the workpiece, the entire clamping structure must be disassembled and reassembled. The operation is complex and time-consuming, which cannot meet the flexible production needs of small-batch processing of various types of irregularly shaped workpieces. The clamping components of existing milling equipment mostly adopt a symmetrical synchronous drive structure, and the clamping parts on both sides can only move synchronously and equidistantly. It cannot perform differentiated displacement adjustment for asymmetrical irregularly shaped workpieces with a protrusion on one side or large differences in the curvature of the two sides. In actual processing, it is only possible to adapt to asymmetrical irregularly shaped workpieces by customizing special clamping claws, which not only significantly increases production costs but also severely limits the processing scope of milling equipment.

[0006] Therefore, there is a need to provide a precision metal milling machine that can adapt to irregularly shaped workpieces, in order to solve the above problems. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a precision metal milling equipment that is adapted to irregularly shaped workpieces.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a metal precision milling equipment adapted to irregularly shaped workpieces, comprising a milling machine and a placement table, wherein the placement table is fixedly connected to the top of the milling machine, and a positioning lifting assembly, a lateral moving assembly, and an irregularly shaped clamping assembly are symmetrically arranged on both sides of the placement table.

[0009] The irregular clamping assembly includes four extension rods, which are arranged in a rectangular pattern on the outside of the placement platform. Each extension rod has a first rotating block rotatably connected to its bottom. Each first rotating block has a second rotating block symmetrically rotatably connected inside. Each second rotating block has a wear-resistant block symmetrically rotatably connected inside. Each extension rod has an adjustable limiting block sleeved on its bottom.

[0010] Preferably, the top of the milling machine is provided with a positioning and lifting assembly, which includes a movable positioning frame. The movable positioning frame has symmetrically opened horizontal lifting grooves inside. A lifting slider group is slidably connected inside the horizontal lifting grooves, and a hydraulic rod is installed at the bottom of the horizontal lifting grooves.

[0011] Preferably, the placement platform is provided with lateral moving components on both sides. The lateral moving components include a fixed plate, which is fixedly connected to the outer wall of the lifting slider assembly. Servo motors are symmetrically installed inside the fixed plate. Reciprocating lead screws are fixedly connected to the output shafts of the two servo motors. Lateral moving blocks are threadedly connected to the outer walls of the two reciprocating lead screws. Grooved sliders are fixedly connected to the outer walls of the two lateral moving blocks.

[0012] Preferably, the lateral movement component further includes a positioning block group, which is fixedly connected to the side of the fixed plate away from the lifting slider group, and a positioning column is fixedly connected between the positioning blocks. A grooved plate is fixedly connected to the bottom of the fixed plate.

[0013] Preferably, the lateral movement component further includes a dry groove, which is formed on the top of the grooved slider, and an I-shaped limiting block is slidably connected inside the dry groove.

[0014] Preferably, the adjustable limiting block is disposed on the rotation path of the first rotating block.

[0015] Preferably, the output shaft of the hydraulic rod is fixedly connected to the bottom of the lifting slider assembly.

[0016] Preferably, the transverse moving block is slidably connected inside the fixed plate, and every two grooved sliders are slidably connected to the outer wall of the positioning column, and each group of grooved sliders is slidably connected to the top of the grooved plate.

[0017] Preferably, the I-shaped limiting block is fitted into the dry groove.

[0018] Preferably, the bottom of each of the extension rods is connected to a first rotating block via an arc-shaped slider, and the first rotating block is connected to a second rotating block via a pin, forming a two-stage rotating structure that can flexibly adjust the angle according to the workpiece contour; the wear-resistant block 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.

[0019] The present invention provides a precision metal milling machine adapted to irregularly shaped workpieces. Compared with the prior art, the advantages of the present invention are:

[0020] Through the multi-stage rotational connection between the first and second rotating blocks, the angle can be adaptively adjusted according to the outer contour of the irregular workpiece, so that the anti-wear block and the outer wall of the workpiece form a surface contact fit. At the same time, the adjustable limit block can limit the rotation amplitude, avoiding insufficient clamping force due to excessive rotation. This ensures the stability of clamping and reduces the risk of the workpiece surface being crushed.

[0021] By engaging the I-shaped limiting block and the dry groove, 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 irregularly shaped workpieces.

[0022] This equipment uses two independently controlled servo motors and reciprocating lead screws, which can drive the sliders in the grooves on both sides to move different distances. The clamping position can be flexibly adjusted according to the actual contour dimensions 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.

[0023] Traditional milling equipment uses clamping components with a fixed height. When dealing with irregularly shaped workpieces of varying heights, the height must be adjusted by adding shims or replacing clamping components, which is cumbersome and prone to introducing positioning errors. This solution uses a hydraulic rod to drive a lifting slider assembly, which in turn raises and lowers the entire subsequent assembly. This allows for flexible adjustment of the height of the irregularly shaped clamping components, 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.

[0024] The groove slider of this device slides synchronously along the outer wall of the positioning column and the top of the groove plate, 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. Attached Figure Description

[0025] Figure 1 This is a schematic diagram showing the overall positional relationship of the device in this invention;

[0026] Figure 2 This is a cross-sectional view of the overall device in this invention;

[0027] Figure 3 This is a schematic diagram showing the positional relationship between the grooved slider, the rotating rod, and the first rotating block in this invention;

[0028] Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle;

[0029] Figure 5 This is a schematic diagram showing the positional relationship between the movable positioning frame, the horizontal lifting groove, and the lifting slider assembly in this invention;

[0030] Figure 6 This is a schematic diagram showing the positional relationship between the positioning block group, positioning post, and groove slider in this invention;

[0031] Figure 7 This is a schematic diagram showing the positional relationship between the fixed plate, servo motor, reciprocating lead screw, and transverse moving block in this invention;

[0032] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point B in the middle;

[0033] Figure 9 This is a schematic diagram showing the positional relationship between the fixing plate and the groove plate in this invention.

[0034] Reference numerals: 11. Milling machine; 12. Placement table;

[0035] The positioning and lifting assembly includes: 21. a movable positioning frame; 22. a horizontal lifting groove; 23. a lifting slider assembly; and 24. a hydraulic rod.

[0036] The lateral movement assembly includes: 31, a fixed plate; 32, a servo motor; 33, a reciprocating lead screw; 34, a lateral movement block; 35, a positioning block assembly; 36, a positioning column; 37, a grooved slider; 38, a dry groove; 39, an I-shaped limiting block; and 310, a grooved plate.

[0037] The irregular clamping assembly includes: 41, a distance extending rod; 42, a first rotating block; 43, a second rotating block; 44, an anti-wear block; and 45, an adjustable limit block. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0039] 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.

[0040] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] like Figure 5As 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.

[0045] It should be noted that: the output shaft of the hydraulic rod 24 is fixedly connected to the bottom of the lifting slider assembly 23, and is used to control the rise and fall of the horizontal position of the irregular clamping component; the movable positioning frame 21, whose bottom is connected to the milling machine 11 through a linear guide rail, can move horizontally along the placement table 12 and lock in position; the hydraulic rod 24 is equipped with a pressure regulating valve and a hydraulic lock, which can adjust the lifting force according to the weight of the workpiece, and can stably lock the lifting slider assembly 23 at any height. This is existing technology and will not be described in detail here.

[0046] like Figures 6 to 9 As shown, lateral moving components are provided on both sides of the placement platform 12. The lateral moving components include a fixed plate 31, which is fixedly connected to the outer wall of the lifting slider assembly 23. Servo motors 32 are symmetrically installed inside the fixed plate 31. Reciprocating lead 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 lead screws 33. Grooved sliders 37 are fixedly connected to the outer walls of the two lateral moving blocks 34.

[0047] 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 posts 36 are fixedly connected between the positioning block groups 35, and a grooved plate 310 is fixedly connected to the bottom of the fixed plate 31.

[0048] The lateral movement component also includes a dry groove 38, which is formed on the top of the recessed slider 37, and an I-shaped limiting block 39 is slidably connected inside the dry groove 38.

[0049] It should be noted 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 as a group, and each group of grooved sliders 37 is slidably connected to the top of the grooved plate 310 to ensure the stability of the movement of the grooved sliders 37; the I-shaped limiting block 39 is fitted with the dry groove 38 to limit the position of the grooved sliders 37 through the dry groove 38.

[0050] Based on the above embodiments, the following is the complete working process and working principle of the above embodiments:

[0051] Working principle:

[0052] Clamping steps for workpieces of different heights:

[0053] 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.

[0054] 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.

[0055] Stable horizontal movement:

[0056] 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.

[0057] 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.

[0058] 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.

[0059] Steps for clamping irregularly shaped workpieces:

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] Clamping and unlocking steps:

[0065] 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.

[0066] 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.

[0067] 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.

[0068] Asymmetric irregular workpiece adaptation:

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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. 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). The bottom of the extender rod (41) is connected to the first rotating block (42) 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 anti-wear 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.

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 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).

4. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 3, 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).

5. 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).

6. 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).

7. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 1, 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).

8. A precision metal milling machine adapted to irregularly shaped workpieces according to claim 4, characterized in that, The I-shaped limiting block (39) is fitted into the dry groove (38).

Images