A horizontal five-axis compound machining center

Abstract

The present application belongs to the field of CNC machine tool processing technology and discloses a horizontal five-axis compound machining center, including a machining platform, a frame and a milling cutter machining assembly. The frame is provided with an adjustment mechanism. A base plate and a fixed seat are fixed on the top of the machining platform. A cross plate is fixed on the top of the fixed seat. A group of symmetrically arranged mounting seats are fixed on the top of the cross plate. A first support plate is hinged on one of the mounting seats in the group, and a second support plate is hinged on the other mounting seat in the group. A first clamping mechanism is provided on the first support plate, and a second clamping mechanism is provided on the second support plate. A driving mechanism for driving the first support plate and the second support plate to rotate around their respective mounting seats to a vertical state and complete the flipping of a plate-shaped workpiece is provided on the machining platform. A control assembly for transporting the flipped plate-shaped workpiece back to the machining station is provided on the base plate. The present application facilitates the flipping operation of large plate-shaped workpieces without stopping the machine, thereby improving the processing efficiency of large plate-shaped workpieces.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control machine tool processing technology, and in particular to a horizontal five-axis compound machining center. Background Art

[0002] A horizontal five-axis machining center is an advanced CNC machine tool featuring multi-axis linkage, high-speed, and high-precision machining. Its horizontal structure places the workpiece on a table, while the tool can move in multiple directions, enabling efficient machining of complex parts. Suitable for machining a wide range of materials, including metals, plastics, and ceramics, these centers can meet the machining needs of diverse industries.

[0003] When using horizontal five-axis machining equipment to process large panels, it is usually necessary to turn the large panels over before processing the back side. The horizontal five-axis machining equipment in the existing general technology usually requires manual assistance to turn the large panels over after shutdown, which is relatively inefficient and increases the labor intensity of the staff. Therefore, it is necessary to improve the horizontal five-axis machining equipment in the relevant technology so that large panels can be turned over to improve processing efficiency and reduce the labor intensity of workers. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a horizontal five-axis compound machining center.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A horizontal five-axis compound machining center, comprising a machining platform, a frame fixed to the top of the machining platform, and a milling cutter machining assembly arranged on the frame, the frame being provided with an adjustment mechanism for adjusting the spatial position of the milling cutter machining assembly, a base plate and a fixed seat located on one side of the base plate being fixed to the top of the machining platform, a cross plate being fixed to the top of the fixed seat, a group of symmetrically arranged mounting seats being fixed to the top of the cross plate, a first support plate being hinged on one of the mounting seats in the group, and a second support plate being hinged on the other mounting seat in the group, a first clamping mechanism for clamping a plate-like workpiece to be processed being provided on the first support plate, a second clamping mechanism for clamping a flipped plate-like workpiece being provided on the second support plate, a driving mechanism for driving the first support plate and the second support plate to rotate around their respective mounting seats to a vertical state and complete the flipping of the plate-like workpiece being provided on the machining platform, and a control component for transporting the flipped plate-like workpiece back to the machining station being provided on the base plate.

[0006] Furthermore, two vertical plates symmetrically distributed on both sides of the base plate are fixed on the top of the processing platform, the fixed connection point of the fixing seat is located between the vertical plate and the base plate, the mounting seat, the first clamping mechanism and the second clamping mechanism are each provided with two groups and symmetrically distributed about the base plate, the first support plate and the second support plate are each provided with two and symmetrically distributed on both sides of the base plate, and each group of the first clamping mechanism includes a first central clamping assembly, a tightening assembly and a first lateral clamping assembly;

[0007] The first center clamping assembly includes a fixing rod fixed to the bottom of the first supporting plate, a fixing plate fixed to the lower end of the fixing rod, a movable plate sleeved on the fixing rod and slidingly matched with the fixing rod, a right-angled trapezoidal abutting block fixed to the top of the movable plate, a first spring sleeved on the fixing rod and fixed between the right-angled trapezoidal abutting block and the fixing plate, and an L-shaped connecting rod fixed to the bottom of the movable plate. The fixing rod and the first spring are each provided with two rectangular through holes for the right-angled trapezoidal abutting block to pass through. The upper surface of the right-angled trapezoidal abutting block is an inclined surface inclined toward the side close to the second supporting plate. The vertical section of the L-shaped connecting rod penetrates the fixing plate and slides with the fixing plate. The vertical plate The L-shaped support plate is fixed to the upper surface of the L-shaped support plate, and the L-shaped support plate is fixed to the lower surface of the L-shaped support plate.

[0008] The cam is fixed to the side panel and has a U-shaped sliding sleeve that is fixed to the first supporting plate and slides with the limiting rod, a lateral baffle that is sleeved on the lateral movable rod and slides with the lateral movable rod, a second spring that is sleeved on the lateral movable rod and is located between the lateral connecting plate and the lateral baffle, and a roller group that is arranged at one end of the lateral movable rod away from the lateral connecting plate, wherein the limiting rod remains connected to the U-shaped sliding sleeve during the rotation of the first supporting plate.

[0009] The two guide rails are connected to each other with a plurality of axes, and the axes of the first and second axes are respectively connected to each other with a plurality of axes.

[0010] Furthermore, each group of the second clamping mechanisms includes a second central clamping assembly, an adsorption assembly, and a second lateral clamping assembly. The structure and arrangement of the second central clamping assembly are exactly the same as those of the first central clamping assembly. The second central clamping assembly and the first central clamping assembly are symmetrically arranged with respect to the transverse plate. When the second supporting plate is in a horizontal state, the side of the right-angled trapezoidal abutment block in the second central clamping assembly away from the fixed plate is completely retracted into the rectangular through-hole. When the second supporting plate is in a vertical state, the side of the right-angled trapezoidal abutment block in the second central clamping assembly away from the fixed plate passes through the rectangular through-hole and catches the plate-shaped workpiece during the flipping process.

[0011] The adsorption assembly is used to suck the side of the flipped plate-shaped workpiece away from the horizontal plate to enhance the stability of the plate-shaped workpiece. The second lateral clamping assembly includes a second lateral clamping member and a second guide rail. The structure and arrangement of the second lateral clamping member are exactly the same as those of the first lateral clamping member. The diameter of the outer arc-shaped through hole for sliding engagement of the lateral movable rod in the second lateral clamping member is smaller than the diameter of the outer arc-shaped through hole for sliding engagement of the lateral movable rod in the first lateral clamping member.

[0012] The two guide rails are located on a side of the vertical plate away from the horizontal plate, and the second guide rails on each of the vertical plates are provided with two and symmetrically distributed on both sides of the outer arc through holes corresponding to the second lateral clamping members. Each of the second guide rails includes an L-shaped rod body fixed to the vertical plate, an arc overhead rod fixed to one end of the L-shaped rod body away from the vertical plate, and an arc guide rod movably connected to one end of the arc overhead rod close to the processing platform. The arc guide rod and the arc overhead rod are connected by an elastic connection component, and the end of the arc guide rod away from the arc overhead rod is kept tightly against the side wall of the vertical plate under the action of the elastic connection component. During the process of adjusting the second support plate to a vertical state, the arc guide rod allows the roller group in the second lateral clamping member to move from the vertical plate to the arc overhead rod. After the plate-like workpiece is flipped to a vertical state, the roller group in the second lateral clamping member slides from the end of the arc overhead rod away from the arc guide rod, and then presses against the side wall of the vertical plate again, and rolls from the arc overhead rod and the vertical plate to the initial position.

[0013] Furthermore, the elastic connection assembly includes a connecting seat fixed to one end of the arc-shaped overhead rod close to the top of the processing platform, a connecting block fixed to the end of the arc-shaped guide rod and hinged to the connecting seat, and a torsion spring sleeved on the hinge shaft between the connecting seat and the connecting block, and the two ends of the torsion spring are respectively fixed to the connecting seat and the connecting block.

[0014] The control wheel that is located at the top of described second moving plate is hinged on the control wheel shaft, and the control wheel shaft of second moving plate is hinged on the top of described second moving plate, and the control wheel shaft of second moving plate is hinged on the top of described second moving plate.

[0015] Furthermore, a guide through-hole is provided at a position of the first support plate away from the mounting seat, and the clamping assembly includes a first mounting plate fixed at a position near the guide through-hole at the bottom of the first support plate, a hexagon socket bolt rotatably mounted on the first mounting plate, and an abutment plate sleeved on the hexagon socket bolt and threadedly connected to the hexagon socket bolt. The first mounting plate is provided with two and symmetrically distributed on both sides of the guide through-hole, the head of the hexagon socket bolt is located near the end of the first support plate, and the abutment plate slides in conjunction with the guide through-hole.

[0016] Furthermore, a mounting through hole is provided at a position of the second support plate away from the mounting seat, and the adsorption assembly includes a second mounting plate fixed in the mounting through hole and a suction cup fixed on the second mounting plate. The suction cup adsorbs the plate-shaped workpiece after the second support plate is adjusted to a vertical state, and the air supply pipe of the suction cup passes through the second mounting plate and is connected to an external air source.

[0017] Furthermore, the control component includes a second fixed block fixed to the top of the base plate, four second fixed blocks are provided and distributed in a rectangular array about the base plate, the control component also includes an active rod rotatably installed between two second fixed blocks on one side of the base plate, a driven rod rotatably installed between two second fixed blocks on the other side of the base plate, a driving pulley fixedly sleeved on the active rod, a driven pulley fixedly sleeved on the driven rod, a closed transmission belt for connecting the driving pulley and the driven pulley, and a second motor fixed on the second fixed block and used to drive the active rod to rotate, the driving pulley, the driven pulley and the closed transmission belt are each provided with two groups and symmetrically arranged, and the two closed transmission belts are simultaneously located between the two first special-shaped rods and the two second special-shaped rods.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. This application facilitates the turning operation of large plate-shaped workpieces without stopping the machine, thereby improving the processing efficiency of large plate-shaped workpieces;

[0020] 2. In the present application, when processing the front side of the plate-shaped workpiece, the bottom surface of the plate-shaped workpiece abuts against the upper surface of the first supporting plate, and the side wall of one side of the right-angled trapezoidal abutting block in the first central clamping assembly abuts against one side of the plate-shaped workpiece. The staff can move the abutting plate along the guide through hole toward the side close to the horizontal plate by screwing the hexagon socket bolt, so as to clamp the two ends of the plate-shaped workpieces of different lengths. Under the elastic force of the second spring in the first lateral clamping member, the U-shaped clamping block on the lateral connecting plate clamps the plate-shaped workpiece. The right-angled trapezoidal abutting block, the U-shaped clamping block, and the abutting plate cooperate with each other to clamp and fix the plate-shaped workpiece to be processed, thereby ensuring the stability of the plate-shaped workpiece during processing.

[0021] 3. In the present application, after the plate-shaped workpiece completes the flipping operation, the control center of the five-axis machining equipment controls the external air source and causes the suction cup to release the plate-shaped workpiece, the second motor works and drives the active rod to rotate, so that the active pulley, the driven pulley, and the closed transmission belt all rotate, and the plate-shaped workpiece moves toward the side close to the initial processing state under the action of the closed transmission belt. After the plate-shaped workpiece acts on the inclined surface of the right-angled trapezoidal abutment block, the right-angled trapezoidal abutment block is driven to retract into the rectangular through hole until the side of the plate-shaped workpiece away from the horizontal plate abuts against the abutment plate, the right-angled trapezoidal abutment block in the first center clamping assembly is reset under the action of the first spring, and the side of the plate-shaped workpiece close to the horizontal plate is limited. At this time, the U-shaped clamping block in the first lateral clamping member is reset and the flipped plate workpiece is re-clamped, so that the horizontal five-axis compound machining center can perform processing operations on the reverse side of the plate-shaped workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0024] Figure 3 is a structural schematic diagram for highlighting the second guide rail in an embodiment of the present invention;

[0025] Figure 4 It is a structural schematic diagram for highlighting the driving mechanism according to an embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram for highlighting the first lateral clamping assembly according to an embodiment of the present invention;

[0027] Figure 6 yes Figure 5 A magnified schematic diagram of point A in the middle;

[0028] Figure 7 yes Figure 5 A magnified schematic diagram of point B in the middle;

[0029] Figure 8 is a schematic structural diagram of a highlight control component according to an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of an embodiment of the present invention for highlighting the flipping of a plate-shaped workpiece to a vertical state;

[0031] Figure 10 yes Figure 9 The enlarged schematic diagram of point C in the middle;

[0032] Figure 11 This is a planar schematic diagram of an embodiment of the present invention used to highlight a plate-shaped workpiece flipped to a vertical state;

[0033] Figure 12 yes Figure 4 Enlarged schematic diagram of point D in the middle.

[0034] In the figure: 1. Processing platform; 11. Frame; 111. Milling cutter processing assembly; 112. Adjusting mechanism; 12. Bottom plate; 13. Fixed seat; 14. Vertical plate; 141. Inner arc-shaped through hole; 142. Vertical connecting hole; 143. Outer arc-shaped through hole; 2. First clamping mechanism; 21. First center clamping assembly; 211. Fixed rod; 212. Fixed plate; 213. Movable plate; 214. Right-angled trapezoidal abutment block; 215. First spring; 216. L-shaped connecting rod; 22 , tightening assembly; 221, first mounting plate; 222, hexagon socket bolt; 223, abutment plate; 23, first lateral clamping assembly; 231, first lateral clamping member; 2311, lateral movable rod; 2312, lateral connecting plate; 2313, U-shaped clamping block; 2314, limiting rod; 2315, U-shaped sliding sleeve; 2316, lateral baffle; 2317, second spring; 2318, roller assembly; 232, first guide rail; 2321, thickened portion; 3, second clamping mechanism; 31. Second central clamping assembly; 32. Adsorption assembly; 321. Second mounting plate; 322. Suction cup; 33. Second lateral clamping assembly; 331. Second lateral clamping member; 332. Second guide rail; 3321. L-shaped rod; 3322. Arc-shaped overhead rod; 3323. Arc-shaped guide rod; 4. Driving mechanism; 41. First motor; 42. First fixing block; 43. Bidirectional threaded rod; 44. First movable plate; 45. First special-shaped rod; 46. Second movable plate; 47. Two special-shaped rods; 5. Control assembly; 51. Second fixed block; 52. Active rod; 53. Driven rod; 54. Active pulley; 55. Driven pulley; 56. Closed transmission belt; 57. Second motor; 6. Horizontal plate; 61. Mounting seat; 611. First support plate; 6111. Rectangular through hole; 6112. Guide through hole; 612. Second support plate; 6121. Mounting through hole; 7. Plate-shaped workpiece; 8. Elastic connecting assembly; 81. Connecting seat; 82. Connecting block; 83. Torsion spring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] like Figure 1-12As shown, an embodiment of the present application discloses a horizontal five-axis compound machining center, including a machining platform 1, a frame 11, a milling cutter machining assembly 111, an adjustment mechanism 112, a first clamping mechanism 2, a second clamping mechanism 3, a driving mechanism 4 and a control assembly 5.

[0037] The processing platform 1 is set horizontally, and a horizontally set base plate 12 and a fixed seat 13 located on one side of the base plate 12 are fixed on the top of the processing platform 1. The fixed seats 13 are provided in two groups (each group of fixed seats 13 is provided with two and parallel to each other) and are symmetrically distributed on both sides of the base plate 12. A cross plate 6 is fixed to the top of the two groups of fixed seats 13. A mounting seat 61 that is grouped and symmetrically arranged about the cross plate 6 is fixed on the top of the cross plate 6. The mounting seats 61 are provided in two groups and are symmetrically distributed on both sides of the base plate 12. In this embodiment, a first support plate 611 is hinged on one of the mounting seats 61 in the group, and a second support plate 612 is hinged on the other mounting seat 61 in the group. The second support plate 612 and the first support plate 611 are symmetrically arranged about the cross plate 6, and there are two first support plates 611 and two second support plates 612 and are symmetrically distributed on both sides of the base plate 12.

[0038] The frame 11 is fixed to the top of the processing platform 1, and the drive mechanism 4 is arranged on the processing platform 1 and ensures that the first support plate 611 and the second support plate 612 remain stable during use. The milling cutter processing assembly 111 and the adjustment mechanism 112 are both arranged on the frame 11. The milling cutter processing assembly 111 and the adjustment mechanism 112 are both commonly used components in five-axis processing equipment. The milling cutter processing assembly 111 can process the plate-like workpiece 7 to be processed on the processing platform 1, and the adjustment mechanism 112 can adjust the spatial position of the milling cutter processing assembly 111. The setting method and use principle of the milling cutter processing assembly 111 and the adjustment mechanism 112 belong to the existing technology and will not be described in detail here. The two groups of symmetrically arranged first support plates 611 maintain a horizontal state under the cooperation of the drive mechanism 4 (the specific structure of the drive mechanism 4 will be introduced in detail later), and support the large plate-like workpiece 7 to be processed so that the milling cutter processing assembly 111 can process the plate-like workpiece 7.

[0039] Two vertical plates 14 are also fixed to the top of the processing platform 1, symmetrically distributed on both sides of the base plate 12. The fixed connection point of the fixed seat 13 is located between the vertical plates 14 and the base plate 12. The first clamping mechanism 2 is provided on the first support plate 611 and is used to clamp the plate-shaped workpiece 7 to be processed. The first clamping mechanism 2 is provided in two groups and is symmetrically distributed about the base plate 12. Each group of the first clamping mechanism 2 includes a first central clamping assembly 21, a clamping assembly 22, and a first lateral clamping assembly 23.

[0040] The first center clamping assembly 21 includes a fixed rod 211 fixed to the bottom of the first supporting plate 611, a fixed plate 212 fixed to the lower end of the fixed rod 211, a movable plate 213 sleeved on the fixed rod 211 and slidingly matched with the fixed rod 211, a right-angled trapezoidal abutting block 214 fixed to the top of the movable plate 213, a first spring 215 sleeved on the fixed rod 211 and fixed between the right-angled trapezoidal abutting block 214 and the fixed plate 212, and an L-shaped connecting rod 216 fixed to the bottom of the movable plate 213. There are two fixed rods 211 and two first springs 215. A rectangular through hole 6111 is provided on the first supporting plate 611 for the right-angled trapezoidal abutting block 214 to pass through. The upper surface of the right-angled trapezoidal abutting block 214 is facing The inclined surface is close to the side of the second support plate 612, and the vertical section of the L-shaped connecting rod 216 passes through the fixed plate 212 and slides with the fixed plate 212. The vertical plate 14 is penetrated by an inner arc-shaped through hole 141 for the horizontal section of the L-shaped connecting rod 216 to slide with, and a vertical connecting hole 142 connected to the bottom of the inner arc-shaped through hole 141. The axis of the inner arc-shaped through hole 141 is located at a position close to the axis of the hinge shaft of the mounting seat 61. When the first support plate 611 is in a horizontal state, the side wall of one side of the right-angled trapezoidal abutment block 214 abuts against the side of the plate-like workpiece 7 close to the horizontal plate 6, and the tightening assembly 22 abuts against the side of the plate-like workpiece 7 away from the horizontal plate 6. The horizontal section of the L-shaped connecting rod 216 is located in the vertical connecting hole 142. When the first support plate 611 rotates to the vertical state, the horizontal section of the L-shaped connecting rod 216 slides to the top of the inner arc-shaped through hole 141, and the right-angled trapezoidal abutment block 214 is completely retracted into the rectangular through hole 6111 on the side away from the fixing plate 212.

[0041] A guide hole 6112 is provided through the first support plate 611 at a position away from the mounting seat 61. The tightening assembly 22 includes a first mounting plate 221 fixed at the bottom of the first support plate 611 near the guide hole 6112, a hexagon socket bolt 222 rotatably mounted on the first mounting plate 221, and an abutment plate 223 sleeved on the hexagon socket bolt 222 and threadedly connected to the hexagon socket bolt 222. The first mounting plate 221 is provided with two symmetrically distributed on both sides of the guide hole 6112. The head of the hexagon socket bolt 222 is located near the end of the first support plate 611, and the abutment plate 223 slides in conjunction with the guide hole 6112.

[0042] The first lateral clamping assembly 23 includes a first lateral clamping member 231 and a first guide rail 232. The first lateral clamping member 231 includes a lateral movable rod 2311 that is arranged horizontally and passes through the vertical plate 14, a lateral connecting plate 2312 that is fixed to one end of the lateral movable rod 2311 and is located between the two vertical plates 14, a U-shaped clamping block 2313 that is fixed to the side wall of the lateral connecting plate 2312 away from the side of the lateral movable rod 2311 and clamps the plate-shaped workpiece 7, a limiting rod 2314 that is fixed to the side wall of one side of the U-shaped clamping block 2313, and a fixing rod 2315 that is fixed to the first bracket. The U-shaped sliding sleeve 2315 on the plate 611 and slidingly engaged with the limit rod 2314, the lateral baffle 2316 mounted on the lateral movable rod 2311 and slidingly engaged with the lateral movable rod 2311, the second spring 2317 mounted on the lateral movable rod 2311 and located between the lateral connecting plate 2312 and the lateral baffle 2316, and the roller group 2318 arranged at the end of the lateral movable rod 2311 away from the lateral connecting plate 2312, the limit rod 2314 remains connected to the U-shaped sliding sleeve 2315 during the rotation of the first support plate 611. The vertical plate 14 is provided with an outer arc-shaped through hole 143 for sliding cooperation with the lateral movable rod 2311. The axis of the outer arc-shaped through hole 143 coincides with the axis of the hinge shaft between the first support plate 611 and the mounting seat 61. The side wall of the lateral baffle 2316 away from the side of the lateral connecting plate 2312 is pressed against the side wall of the vertical plate 14 close to the side connecting plate 2312. The two ends of the second spring 2317 are pressed against the lateral connecting plate 2312 and the lateral baffle 2316 respectively. The extension direction of the first guide rail 232 is parallel to the extension direction of the outer arc-shaped through hole 143. One side of the first guide rail 232 is in contact with the vertical plate 1 4 is fixed to the side wall of the side away from the other vertical plate 14. Two first guide rails 232 are provided and symmetrically arranged on both sides of the outer arc-shaped through hole 143, and the first guide rails 232 are arranged adjacent to the outer arc-shaped through hole 143. The two rollers of the roller assembly 2318 are respectively pressed against the side of the two first guide rails 232 away from the vertical plate 14. The end of the first guide rail 232 away from the processing platform 1 is provided with a thickened portion 2321. When the roller assembly 2318 moves to the thickened portion 2321, the U-shaped clamping block 2313 is horizontally pulled toward the side away from the center of the processing platform 1, thereby releasing the plate-shaped workpiece 7 to be turned over.When processing the front of the plate-shaped workpiece 7, the bottom surface of the plate-shaped workpiece 7 abuts against the upper surface of the first support plate 611, and the side wall of one side of the right-angled trapezoidal abutting block 214 in the first center clamping assembly 21 abuts against one side of the plate-shaped workpiece 7. The staff can make the abutting plate 223 move along the guide through hole 6112 toward the side close to the cross plate 6 by screwing the hexagon socket bolt 222, so as to clamp the two ends of the plate-shaped workpiece 7 of different lengths. Under the elastic force of the second spring 2317 in the first lateral clamping member 231, the U-shaped clamping block 2313 on the lateral connecting plate 2312 clamps the plate-shaped workpiece 7. The right-angled trapezoidal abutting block 214, the U-shaped clamping block 2313, and the abutting plate 223 cooperate with each other to clamp and fix the plate-shaped workpiece 7 to be processed, thereby ensuring the stability of the plate-shaped workpiece 7 during processing.

[0043] The second clamping mechanism 3 is arranged on the second support plate 612 and is used to clamp the plate-like workpiece 7 after flipping over. The second clamping mechanism 3 is provided with two groups and is symmetrically distributed about the base plate 12. Each group of the second clamping mechanism 3 includes a second central clamping component 31, an adsorption component 32 and a second lateral clamping component 33. The structure and setting method of the second central clamping component 31 are exactly the same as the structure and setting method of the first central clamping component 21. The second central clamping component 31 and the first central clamping component 21 are symmetrically arranged about the cross plate 6. When the second support plate 612 is in a horizontal state, the right-angled trapezoidal abutment block 214 in the second central clamping component 31 is completely retracted into the rectangular through hole 6111 away from the side of the fixed plate 212. When the second support plate 612 is in a vertical state, the right-angled trapezoidal abutment block 214 in the second central clamping component 31 is away from the side of the fixed plate 212 and passes through the rectangular through hole 6111 and catches the plate-like workpiece 7 during the flipping process. After the front surface of the plate-shaped workpiece 7 is processed and the back surface needs to be processed, the driving mechanism 4 drives the first support plate 611 and the second support plate 612 to rotate around their respective mounting seats 61 until the first support plate 611 and the second support plate 612 are rotated to a vertical state. During this process, the horizontal section of the L-shaped connecting rod 216 in the first center clamping assembly 21 gradually slides from the vertical connecting hole 142 to the top of the inner arc-shaped through hole 141 on one side, and the first spring 215 in the first center clamping assembly 21 gradually contracts, and the right-angled trapezoidal abutment block 21 in the first center clamping assembly 21 is pressed. The side away from the fixed plate 212 gradually shrinks into the rectangular through hole 6111 (on the first supporting plate 611). At the same time, the horizontal section of the L-shaped connecting rod 216 in the second central clamping assembly 31 gradually moves to the top of the inner arc-shaped through hole 141 on the other side. The first spring 215 in the second central clamping assembly 31 gradually extends. The right-angled trapezoidal abutting block 214 in the second central clamping assembly 31 gradually extends from the rectangular through hole 6111 (on the second supporting plate 612) on the side away from the fixed plate 212, thereby supporting the bottom of the plate-like workpiece 7 that has been flipped to a vertical state.

[0044] A mounting through hole 6121 is provided through the second support plate 612 at a position away from the mounting seat 61. The adsorption assembly 32 is used to suck the flipped plate-like workpiece 7 away from the side of the horizontal plate 6 to enhance the stability of the plate-like workpiece 7. The adsorption assembly 32 includes a second mounting plate 321 fixed in the mounting through hole 6121 and a suction cup 322 fixed on the second mounting plate 321. The suction cup 322 adsorbs the plate-like workpiece 7 after the second support plate 612 is adjusted to a vertical state. The air supply pipe of the suction cup 322 passes through the second mounting plate 321 and is connected to an external air source. When the right-angled trapezoidal abutment block 214 in the second center clamping assembly 31 gradually extends out from the rectangular through hole 6111 (on the second support plate 612) away from the side of the fixed plate 212 and supports the bottom of the plate-like workpiece 7 flipped to a vertical state, the control center of the five-axis machining equipment controls the external air source so that the air pressure at the suction cup 322 is negative and sucks the flipped plate-like workpiece 7, thereby enhancing the stability of the flipped workpiece in the subsequent process of converting it to a horizontal state.

[0045] The second lateral clamping assembly 33 includes a second lateral clamping member 331 and a second guide rail 332. The structure and setting method of the second lateral clamping member 331 are exactly the same as the structure and setting method of the first lateral clamping member 231. The diameter of the outer arc-shaped through hole 143 for sliding engagement of the lateral movable rod 2311 in the second lateral clamping member 331 is smaller than the diameter of the outer arc-shaped through hole 143 for sliding engagement of the lateral movable rod 2311 in the first lateral clamping member 231.

[0046] The second guide rail 332 is located on the side of the vertical plate 14 away from the horizontal plate 6, and the second guide rail 332 on each vertical plate 14 is provided with two and symmetrically distributed on both sides of the outer arc-shaped through hole 143 corresponding to the second lateral clamping member 331. Each second guide rail 332 includes an L-shaped rod body 3321 fixed on the vertical plate 14, an arc-shaped overhead rod 3322 fixed to the end of the L-shaped rod body 3321 away from the vertical plate 14, and an arc-shaped guiding rod 3323 movably connected to the end of the arc-shaped overhead rod 3322 close to the processing platform 1 (the extension directions of the arc-shaped guiding rod 3323 and the arc-shaped overhead rod 3322 are both arc-shaped, and the axis of the arc-shaped guiding rod 3323 and the axis of the arc-shaped overhead rod 3322 are both coincident with the axis of the hinge axis between the second support plate 612 and the mounting seat 61). The arc guide rod 3323 and the arc overhead rod 3322 are connected by an elastic connection component 8, and the end of the arc guide rod 3323 away from the arc overhead rod 3322 is kept in contact with the side wall of the vertical plate 14 under the action of the elastic connection component 8. The arc guide rod 3323 allows the roller group 2318 in the second lateral clamping member 331 to move from the vertical plate 14 to the arc overhead rod 3322 during the process of the second support plate 612 being adjusted to a vertical state. After the plate-like workpiece 7 is flipped to a vertical state, the roller group 2318 in the second lateral clamping member 331 slides down from the end of the arc overhead rod 3322 away from the arc guide rod 3323, and then presses against the side wall of the vertical plate 14 again, and rolls from between the arc overhead rod 3322 and the vertical plate 14 to the initial position.

[0047] The elastic connecting assembly 8 includes a connecting seat 81 fixed to one end of the arc-shaped overhead rod 3322 close to the top of the processing platform 1, a connecting block 82 fixed to the end of the arc-shaped guide rod 3323 and hinged to the connecting seat 81, and a torsion spring 83 sleeved on the hinge shaft between the connecting seat 81 and the connecting block 82, and the two ends of the torsion spring 83 are respectively fixed to the connecting seat 81 and the connecting block 82.

[0048] The driving mechanism 4 is used to drive the first support plate 611 and the second support plate 612 to rotate around their respective mounting seats 61 to a vertical state and complete the flipping operation of the plate-shaped workpiece 7. The driving mechanism 4 includes a first motor 41 fixed to the top of the processing platform 1, a first fixed block 42 fixed to the top of the processing platform 1, a bidirectional threaded rod 43 fixed to the output shaft end of the first motor 41 and rotatably connected to the first fixed block 42, a first movable plate 44 sleeved on the bidirectional threaded rod 43 and threadedly connected to the bidirectional threaded rod 43, a first special-shaped rod 45 hinged to the top of the first movable plate 44, a second movable plate 46 sleeved on the bidirectional threaded rod 43 and threadedly connected to the bidirectional threaded rod 43, and a second special-shaped rod 45 hinged to the top of the first movable plate 44. The second special-shaped rod 47 is hinged on the top of the plate 46, and the bidirectional threaded rod 43 is provided with two sections of external threads with equal pitch, opposite rotation direction and symmetrically arranged about the cross plate 6 (the second movable plate 46 and the first movable plate 44 are symmetrically distributed on the two sections of external threads of the bidirectional threaded rod 43), the bottom surface of the first movable plate 44 and the bottom surface of the second movable plate 46 are both in contact with the upper surface of the bottom plate 12, the first special-shaped rod 45 is staggered with the first center clamping assembly 21, and the end of the first special-shaped rod 45 away from the first movable plate 44 is hinged to the bottom of the first support plate 611, the second special-shaped rod 47 is staggered with the second center clamping assembly 31, and the end of the second special-shaped rod 47 away from the second movable plate 46 is hinged to the bottom of the second support plate 612. When performing the flipping operation of the plate-shaped workpiece 7, the control center of the five-axis machining equipment controls the first motor 41 to work, thereby driving the bidirectional threaded rod 43 to rotate. Since the bottom surface of the first movable plate 44 and the bottom surface of the second movable plate 46 are both in contact with the upper surface of the base plate 12, the first movable plate 44 and the second movable plate 46 are both threadedly connected to the bidirectional threaded rod 43, so that the first movable plate 44 and the second movable plate 46 are close to each other. The first support plate 611 is pushed by the first special-shaped rod 45 to rotate around the hinge axis between the first support plate 611 and one of the mounting seats 61, and the second support plate 612 is in the second special-shaped Under the action of rod 47, the second support plate 612 is pushed to rotate around the hinge axis between the second support plate 612 and another mounting seat 61. During this process, under the joint action of the limit rod 2314 and the U-shaped sleeve 2315, the U-shaped clamping block 2313, the lateral connecting plate 2312, the lateral movable rod 2311, and the roller group 2318 in the first lateral clamping member 231 gradually move upward along the circular arc extension direction of the first guide rail 232, and the roller group 2318 in the second lateral clamping member 331 rolls along the arc guide rod 3323 to the arc overhead rod 3322 and continues to roll along the arc overhead rod 3322.When the first support plate 611 and the second support plate 612 are both in a vertical state, the roller group 2318 in the first lateral clamping member 231 moves to the position of the thickened portion 2321, and the roller group 2318 in the first lateral clamping member 231 pulls the lateral connecting plate 2312 horizontally through the lateral movable rod 2311, so that the U-shaped clamping block 2313 in the first lateral clamping member 231 is separated from the plate-like workpiece 7. At the same time, the roller group 2318 in the second lateral clamping member 331 slides off the end of the arc-shaped overhead rod 3322 away from the arc-shaped guide rod 3323, and the roller group 2318 in the second lateral clamping member 331 pushes the lateral connecting plate 2312 through the lateral movable rod 2311, so that the U-shaped clamping block 2313 in the second lateral clamping member 331 clamps the flipped plate-like workpiece 7, further enhancing the stability of the flipped plate-like workpiece 7 when it is placed in a horizontal state. Subsequently, the control center of the five-axis machining equipment controls the first motor 41 to work in the reverse direction, so that the first movable plate 44 and the second movable plate 46 are reset, and the flipped plate-like workpiece 7 is gradually flattened. During this process, the right-angled trapezoidal abutment block 214 in the second center clamping assembly 31 maintains the state of abutting the plate-like workpiece 7. When the horizontal section of the L-shaped connecting rod 216 in the second center clamping assembly 31 slides into the vertical connecting hole 142, the right-angled trapezoidal abutment block 214 in the second center clamping assembly 31 will be retracted into the rectangular through hole 6111, so that the control assembly 5 can control the flipped plate-like workpiece 7 to return to the processing station. The limit rod 2314 and the U-shaped sliding sleeve 2315 slide together to ensure the stability of the U-shaped clamping block 2313 during use, so that the U-shaped clamping block 2313 in the second lateral clamping member 331 can smoothly clamp the flipped plate-like workpiece 7.

[0049] The control component 5 is arranged on the base plate 12 and is used to transport the turned-over plate-shaped workpiece 7 back to the processing station. The control component 5 includes a second fixed block 51 fixed to the top of the base plate 12. The second fixed blocks 51 are provided with four and are distributed in a rectangular array about the base plate 12. The control component 5 also includes an active rod 52 rotatably mounted between the two second fixed blocks 51 on one side of the base plate 12, a driven rod 53 rotatably mounted between the two second fixed blocks 51 on the other side of the base plate 12, a driving pulley 54 fixedly mounted on the active rod 52, a driven pulley 55 fixedly mounted on the driven rod 53, a closed transmission belt 56 for connecting the driving pulley 54 and the driven pulley 55, and a second motor 57 fixed on the second fixed block 51 and used to drive the active rod 52 to rotate. The driving pulley 54, the driven pulley 55 and the closed transmission belt 56 are each provided with two groups and are symmetrically arranged. The two closed transmission belts 56 are simultaneously located between the two first special-shaped rods 45 and the two second special-shaped rods 47. After the plate-like workpiece 7 is turned over, the control center of the five-axis machining equipment controls the external air source and causes the suction cup 322 to release the plate-like workpiece 7. The second motor 57 works and drives the active rod 52 to rotate, so that the active pulley 54, the driven pulley 55, and the closed transmission belt 56 all rotate. Under the action of the closed transmission belt 56, the plate-like workpiece 7 moves toward the side close to the initial processing state. After the plate-like workpiece 7 acts on the inclined surface of the right-angled trapezoidal abutment block 214, the right-angled trapezoidal abutment block 214 is driven to re-turn. Retracted into the rectangular through hole 6111 until the plate-like workpiece 7 abuts against the abutment plate 223 on the side away from the transverse plate 6, the right-angled trapezoidal abutment block 214 in the first center clamping assembly 21 is reset under the action of the first spring 215, and limits the side of the plate-like workpiece 7 close to the transverse plate 6. At this time, the U-shaped clamping block 2313 in the first lateral clamping member 231 is reset and re-clamps the turned-over plate-like workpiece 7, so that the horizontal five-axis compound machining center can perform processing operations on the back of the plate-like workpiece 7.

[0050] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A horizontal five-axis machining center comprising a machining platform, a frame fixed to the top of the machining platform, and a milling cutter assembly mounted on the frame, wherein the frame is provided with an adjustment mechanism for adjusting the spatial position of the milling cutter assembly, and wherein: A base plate and a fixed seat located on one side of the base plate are fixed on the top of the processing platform, a horizontal plate is fixed on the top of the fixed seat, and a group of symmetrically arranged mounting seats are fixed on the top of the horizontal plate, a first support plate is hinged on one of the mounting seats in the group, and a second support plate is hinged on the other mounting seat in the group, a first clamping mechanism for clamping the plate-shaped workpiece to be processed is provided on the first support plate, and a second clamping mechanism for clamping the flipped plate workpiece is provided on the second support plate, a driving mechanism for driving the first support plate and the second support plate to rotate around their respective mounting seats to a vertical state and complete the flipping of the plate-shaped workpiece is provided on the processing platform, and a control component for transporting the flipped plate workpiece back to the processing station is provided on the base plate; Two vertical plates are fixed on the top of the processing platform and are symmetrically distributed on both sides of the base plate. The fixed connection point of the fixed seat is located between the vertical plate and the base plate. The mounting seat, the first clamping mechanism and the second clamping mechanism are each provided with two groups and are symmetrically distributed about the base plate. The first support plate and the second support plate are each provided with two and are symmetrically distributed on both sides of the base plate. Each group of the first clamping mechanism includes a first central clamping assembly, a tightening assembly and a first lateral clamping assembly. The first center clamping assembly includes a fixing rod fixed to the bottom of the first supporting plate, a fixing plate fixed to the lower end of the fixing rod, a movable plate sleeved on the fixing rod and slidingly matched with the fixing rod, a right-angled trapezoidal abutting block fixed to the top of the movable plate, a first spring sleeved on the fixing rod and fixed between the right-angled trapezoidal abutting block and the fixing plate, and an L-shaped connecting rod fixed to the bottom of the movable plate. The fixing rod and the first spring are both provided with two rectangular through holes for the right-angled trapezoidal abutting block to pass through. The upper surface of the right-angled trapezoidal abutting block is an inclined surface inclined toward the side close to the second supporting plate. The vertical section of the L-shaped connecting rod passes through the fixing plate and slides with the fixing plate. The plate is provided with an inner arc-shaped through hole for sliding cooperation with the horizontal section of the L-shaped connecting rod and a vertical connecting hole connected to the bottom of the inner arc-shaped through hole. The axis of the inner arc-shaped through hole is located near the axis of the hinge shaft of the mounting seat. When the first supporting plate is in a horizontal state, the side wall of one side of the right-angled trapezoidal abutting block abuts against the side of the plate-like workpiece close to the horizontal plate, the tightening assembly abuts against the side of the plate-like workpiece away from the horizontal plate, and the horizontal section of the L-shaped connecting rod is located in the vertical connecting hole; when the first supporting plate is rotated to a vertical state, the horizontal section of the L-shaped connecting rod slides to the top end of the inner arc-shaped through hole, and the side of the right-angled trapezoidal abutting block away from the fixed plate is completely retracted into the rectangular through hole; The cam is fixed to the side panel and has a U-shaped slotting mechanism which is adapted to move the cam forward and backward to move the workpiece relative to the first support plate, the U-shaped slotting mechanism being adapted to move the cam forward and backward to move the workpiece relative to the first support plate. The first plate is provided with a first circular arc through hole for sliding cooperation of the lateral movable rod, the axis of the first circular arc through hole coincides with the axis of the hinge shaft between the first support plate and the mounting seat, the side wall of the side baffle away from the side connecting plate is tightly pressed against the side wall of the vertical plate close to the side connecting plate, and the two ends of the second spring are respectively pressed against the side connecting plate and the side baffle, the extension direction of the first guide rail is parallel to the extension direction of the outer circular arc through hole, one side of the first guide rail is fixed to the side wall of the vertical plate away from the other vertical plate, the first guide rail is provided with two and symmetrically arranged on both sides of the outer circular arc through hole, and the first guide rail is arranged adjacent to the outer circular arc through hole, the two rollers of the roller group are respectively pressed against the side of the two first guide rails away from the vertical plate, and a thickened part is provided at the end of the first guide rail away from the processing platform, so that when the roller group moves to the thickened part, the U-shaped clamping block is horizontally pulled toward the side away from the center of the processing platform, thereby releasing the plate-shaped workpiece to be flipped over.

2. A horizontal five-axis compound machining center according to claim 1, characterized in that: Each set of the second clamping mechanisms includes a second central clamping assembly, an adsorption assembly, and a second lateral clamping assembly. The structure and arrangement of the second central clamping assembly are exactly the same as those of the first central clamping assembly. The second central clamping assembly and the first central clamping assembly are symmetrically arranged with respect to the transverse plate. When the second support plate is in a horizontal state, the side of the right-angled trapezoidal abutment block in the second central clamping assembly away from the fixed plate is completely retracted into the rectangular through-hole. When the second support plate is in a vertical state, the side of the right-angled trapezoidal abutment block in the second central clamping assembly away from the fixed plate passes through the rectangular through-hole and catches the plate-shaped workpiece in the flipping process. The adsorption assembly is used to suck the side of the flipped plate-like workpiece away from the horizontal plate to enhance the stability of the plate-like workpiece. The second lateral clamping assembly includes a second lateral clamping member and a second guide rail. The structure and arrangement of the second lateral clamping member are exactly the same as those of the first lateral clamping member. The diameter of the outer arc-shaped through hole for sliding engagement of the lateral movable rod in the second lateral clamping member is smaller than the diameter of the outer arc-shaped through hole for sliding engagement of the lateral movable rod in the first lateral clamping member. The cam is fixed to the side panel that is provided with an L-shaped guide rail, and the cam is fixed to the side panel that is provided with an L-shaped guide rail, and the cam is fixed to the side panel that is provided with an L-shaped guide rail.

3. A horizontal five-axis compound machining center according to claim 2, characterized in that: The elastic connection assembly includes a connecting seat fixed to one end of the arc-shaped overhead rod close to the top of the processing platform, a connecting block fixed to the end of the arc-shaped guide rod and hinged to the connecting seat, and a torsion spring sleeved on the hinge shaft between the connecting seat and the connecting block, with both ends of the torsion spring fixed to the connecting seat and the connecting block respectively.

4. A horizontal five-axis compound machining center according to claim 3, characterized in that: The driving mechanism comprises a first motor fixed to the top of the machining platform, a first fixed block fixed to the top of the machining platform, a bidirectional threaded rod fixed to the output shaft end of the first motor and rotatably connected to the first fixed block, a first movable plate sleeved on the bidirectional threaded rod and threadedly connected to the bidirectional threaded rod, a first special-shaped rod hinged to the top of the first movable plate, a second movable plate sleeved on the bidirectional threaded rod and threadedly connected to the bidirectional threaded rod, and a second special-shaped rod hinged to the top of the second movable plate. The bidirectional threaded rod is provided with two sections of external threads with equal pitch, opposite rotation directions and symmetrically arranged about the cross plate. The bottom surface of the first movable plate and the bottom surface of the second movable plate are both abutted against the upper surface of the base plate. The first special-shaped rod and the first center clamping assembly are staggered, and one end of the first special-shaped rod away from the first movable plate is hinged to the bottom of the first support plate, and the second special-shaped rod is staggered with the second center clamping assembly, and one end of the second special-shaped rod away from the second movable plate is hinged to the bottom of the second support plate.

5. A horizontal five-axis compound machining center according to claim 4, characterized in that: A guide through hole is provided at a position of the first support plate away from the mounting seat, and the tightening assembly includes a first mounting plate fixed at a position near the guide through hole at the bottom of the first support plate, a hexagon socket bolt rotatably mounted on the first mounting plate, and an abutment plate sleeved on the hexagon socket bolt and threadedly connected to the hexagon socket bolt. The first mounting plate is provided with two and symmetrically distributed on both sides of the guide through hole, the head of the hexagon socket bolt is located near the end of the first support plate, and the abutment plate slides in cooperation with the guide through hole.

6. A horizontal five-axis compound machining center according to claim 5, characterized in that: A mounting through hole is provided at a position of the second support plate away from the mounting seat. The adsorption assembly includes a second mounting plate fixed in the mounting through hole and a suction cup fixed on the second mounting plate. The suction cup adsorbs the plate-shaped workpiece after the second support plate is adjusted to a vertical state. The air supply pipe of the suction cup passes through the second mounting plate and is connected to an external air source.

7. A horizontal five-axis compound machining center according to claim 6, characterized in that: The control component includes a second fixed block fixed to the top of the base plate, four second fixed blocks are provided and distributed in a rectangular array about the base plate, the control component also includes an active rod rotatably installed between two second fixed blocks on one side of the base plate, a driven rod rotatably installed between two second fixed blocks on the other side of the base plate, a driving pulley fixedly sleeved on the active rod, a driven pulley fixedly sleeved on the driven rod, a closed transmission belt for connecting the driving pulley and the driven pulley, and a second motor fixed on the second fixed block and used to drive the active rod to rotate, the driving pulley, the driven pulley and the closed transmission belt are each provided in two groups and symmetrically arranged, and the two closed transmission belts are simultaneously located between the two first special-shaped rods and the two second special-shaped rods.

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