High-rigidity high-precision numerical control forming machine tool

Abstract

The application relates to a high-rigidity high-precision numerical control forming machine tool, and belongs to the technical field of metal processing machine tools, which comprises a bed body, at least two supporting columns are fixedly arranged on the bed body, adjacent supporting columns are connected through connecting beams, a main shaft box is arranged on the bed body, the two sides of the main shaft box are slidably connected with the supporting columns on the same side, a cutting tool is connected with the main shaft box, a clamping assembly for clamping a workpiece is arranged on the bed body, a first driving assembly for driving the clamping assembly to move along an X-axis direction is arranged on the bed body, an adjusting assembly for driving the clamping assembly to move along a Y-axis direction is arranged on the bed body, and a second driving assembly for driving the main shaft box to move along a Z-axis direction is arranged on the supporting column. The application has the effect of improving the stability of the processing machine tool under high-speed rotation of a milling cutter, and further improving the machining precision of the machine tool.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining tools, in particular to a high-rigidity and high-precision numerical control forming machine tool. BACKGROUND

[0002] Traditional hardware machining tools generally have a single column installed on a workbench, a spindle box is slidingly connected to the single column, a servo assembly controls the spindle box to slide along the single column in the Z-axis direction, and the single column can also move along the X-axis and Y-axis directions on the workbench, so that the milling cutter connected to the spindle box can be aligned with the machining part of the hardware to be machined.

[0003] For the related technologies in the above, when high-rigidity hardware needs to be machined, the milling cutter speed needs to be increased to meet the milling machining requirements of high-rigidity hardware, and the single column structure makes the spindle box only one side constrained, and the single column can move along the X-axis and Y-axis directions. In actual use, the single column X-axis direction and Y-axis direction cannot be completely locked, so when the milling cutter rotates at high speed, the spindle box and the single column are prone to instability and vibration, thereby affecting the machining quality of the hardware, and even causing the machine tool to fail to meet the machining requirements of high-rigidity hardware. SUMMARY

[0004] In order to improve the stability of the machining tool under high-speed rotation of the milling cutter, and further improve the machining precision of the machine tool, the present application provides a high-rigidity and high-precision numerical control forming machine tool.

[0005] The high-rigidity and high-precision numerical control forming machine tool provided by the present application adopts the following technical scheme:

[0006] A high-rigidity and high-precision numerical control forming machine tool, comprising a bed body, at least two support columns are fixedly arranged on the bed body, adjacent support columns are connected through a connecting beam, a spindle box is arranged on the bed body, both sides of the spindle box are slidingly connected with the same side of the support column, a cutting tool is connected to the spindle box, a clamping assembly for clamping a workpiece is arranged on the bed body, a first driving assembly for driving the clamping assembly to move along the X-axis direction is arranged on the bed body, an adjusting assembly for driving the clamping assembly to move along the Y-axis direction is arranged on the bed body, and a second driving assembly for driving the spindle box to move along the Z-axis direction is arranged on the column.

[0007] By adopting the technical scheme, when machining, the workpiece is fixed by the clamping assembly, the position of the workpiece is adjusted by the first driving assembly and the adjusting assembly, the machining part of the workpiece is located below the cutting tool, then the main shaft box drives the cutting tool to rotate, the second driving assembly drives the main shaft box and the cutting tool to feed downward, so that the workpiece is machined, since the support column is fixed on the bed body, the X-axis direction and the Y-axis direction of the support column are constrained, and the two sides of the main shaft box are constrained by the X-axis direction and the Y-axis direction of the same side support column, the stability of the machine tool under high-speed rotation of the cutting tool is improved, and the machining quality of the workpiece is improved, and the machine tool can be used for machining high-rigidity and high-precision hardware tools.

[0008] Optionally, the clamping assembly comprises a clamping seat, a fixing plate is arranged on the clamping seat, a pressing plate is slidably connected to the clamping seat, a support shaft is arranged on the pressing plate, a driving member for driving the pressing plate to move along the X-axis direction is mounted on the clamping seat, the workpiece is located between the fixing plate and the pressing plate, the pressing plate abuts against the workpiece, the support shaft is inserted into the hole of the workpiece, and an adjusting member for adjusting the angle of the workpiece is arranged on the clamping seat.

[0009] By adopting the technical scheme, the workpiece is sleeved on the support shaft, then the driving member drives the pressing plate to move towards the fixing plate, the support shaft is inserted into the fixing plate, the workpiece is in contact with the fixing plate, then the adjusting member is controlled to adjust the angle of the workpiece so that the workpiece is in a horizontal state, finally the driving member continues to push the pressing plate, and the workpiece is clamped between the fixing plate and the pressing plate, so that the workpiece is fixed.

[0010] Optionally, the adjusting member comprises a moving block, the moving block is slidably arranged on the clamping seat, an adjusting screw is rotatably connected to the clamping seat, the adjusting screw is threadedly connected with the moving block, a support block is arranged on the moving block, the longitudinal section of the support block is a variable cross section, and the machining part of the workpiece is supported on the support block.

[0011] By adopting the technical scheme, when the workpiece is in contact with the fixing plate, the workpiece is supported on the support block, then the adjusting screw is rotated, the adjusting screw drives the moving block to move, the moving block drives the support block to move, the support block gradually rotates around the support shaft against the workpiece, and when the workpiece is in a horizontal state, the adjustment of the horizontal degree of the workpiece is completed.

[0012] Optionally, an adjusting hole is formed in the moving block along the sliding direction, a pressing bolt is arranged in the adjusting hole, the pressing bolt is threadedly connected with the clamping seat, after the angle of the workpiece is adjusted, the pressing bolt is in abutment with the moving block, and the moving block is in abutment with the clamping seat.

[0013] By adopting the technical scheme, after the workpiece is adjusted to be horizontal, the moving block is abutted on the clamping seat by tightening the abutting bolt, the situation that the workpiece swings around the supporting shaft due to the shaking of the moving block during the machining process is reduced, and the machining precision of the workpiece is improved.

[0014] Optionally, a workbench is slidably connected to the bed body, and a mounting bottom plate is slidably connected to the workbench.

[0015] The first driving assembly comprises a first servo motor, a first screw rod connected to the first servo motor, the first screw rod being rotationally connected to the bed body, a first nut seat threadedly connected to the first screw rod, and the first nut seat being fixed to the workbench.

[0016] By adopting the technical scheme, the first servo motor drives the first screw rod to rotate, the first screw rod drives the first nut seat to move, the first nut seat drives the workbench to move along the X-axis direction, and the mounting bottom plate and the clamping assembly move along the X-axis direction along with the workbench, so that the workpiece can be adjusted along the X-axis direction.

[0017] Optionally, the adjusting assembly is arranged on the workbench, the adjusting assembly comprises a fixed block fixed to the workbench, a rotating screw rod rotationally connected to the fixed block, the rotating screw rod being arranged along the Y-axis direction, an adjusting nut fixed to the rotating screw rod, and a nut block arranged on the mounting bottom plate and threadedly connected to the rotating screw rod.

[0018] By adopting the technical scheme, the adjusting nut is manually rotated, the adjusting nut drives the rotating screw rod to rotate, the rotating screw rod drives the nut block to move, so that the nut block drives the mounting bottom plate and the clamping assembly to move along the Y-axis direction, and the workpiece can be adjusted along the Y-axis direction.

[0019] Optionally, a mounting bracket is fixed to the workbench, an indicating plate is arranged on the mounting bracket, an indicating block is slidably connected to the indicating plate and can slide along the Y-axis direction, and the indicating block is fixed to the mounting bottom plate.

[0020] By adopting the technical scheme, the indicating block moves along the Y-axis direction when the mounting bottom plate moves, the position relationship between the indicating block and the indicating plate is observed, the indicating block plays an auxiliary observation role, and the machining part of the workpiece can be accurately aligned with the cutting tool.

[0021] Optionally, a first storage space for storing cutting fluid and a second storage space for storing hydraulic oil are separated on the bottom of the bed body.

[0022] The first storage space is provided with a water pump, one of the support columns is provided with a liquid outlet pipe, the water pump is communicated with the liquid outlet pipe, one side of the lathe bed is provided with a water storage tank, the water storage tank is communicated with the first storage space, the water storage tank is provided with a filter screen, the filter screen divides the water storage tank into a filtered area and an unfiltered area, and the water storage tank is connected with a liquid inlet pipe for collecting used cutting fluid flowing into the filtered area.

[0023] The second storage space is provided with an oil pump, and one of the support columns is provided with an oil outlet module.

[0024] By adopting the above technical scheme, the water pump extracts the cutting fluid in the first storage space and discharges the cutting fluid from the liquid outlet pipe for cooperating with the cutting tool to process, and the used cutting fluid can flow into the water storage tank through the liquid inlet pipe, and then flow from the unfiltered area to the filtered area and be filtered by the filter screen, and finally flow back to the first storage space for use.

[0025] The oil pump extracts the hydraulic oil in the second storage space for oil supply.

[0026] The liquid supply system and the oil supply system are integrated on the lathe bed and the support columns, thereby reducing the occupied space of the machine tool as a whole.

[0027] Optionally, the clamping assembly comprises a first sliding seat and a second sliding seat, the lathe bed is provided with a driving motor, the driving motor is connected with an adjusting rod, the adjusting rod is provided with a first threaded section and a second threaded section, the screw directions of the first threaded section and the second threaded section are opposite, the first sliding seat is threadedly connected with the first threaded section, the second sliding seat is threadedly connected with the second threaded section, the first sliding seat is provided with a first clamping plate, and the second sliding seat is provided with a second clamping plate.

[0028] The second clamping plate is provided with a support column, the first clamping plate is provided with a rotating hole, one side of the first sliding seat is provided with an adjusting block, the adjusting block is slidably connected with a support plate, the support plate slides along the Z-axis direction, the adjusting block is rotatably connected with an adjusting bolt, the adjusting bolt is arranged along the Z-axis direction, the adjusting bolt is threadedly connected with the support plate, the adjusting block is provided with an abutting plate, and the abutting plate is located above the support plate.

[0029] By adopting the above technical scheme, when the workpiece is clamped, the workpiece is sleeved on the supporting column, then the driving motor is started, the driving motor drives the adjusting rod to rotate, the first sliding seat and the second sliding seat move towards each other, when the second clamping plate pushes the workpiece to be above the supporting plate, the adjusting block is inserted into the abutting plate, at this time, the abutting plate is above the workpiece, then the adjusting bolt is rotated, the adjusting bolt drives the supporting plate to rise and clamps the machining end of the workpiece between the abutting plate and the supporting plate, so that the workpiece is adjusted to a horizontal state, finally, the driving motor is started to drive the first clamping plate and the second clamping plate to clamp the workpiece, and the abutting plate is extracted, so that the fixing of the workpiece is completed. The abutting plate can quickly adjust the workpiece to a horizontal state, and manual observation is not needed for slow adjustment, so that the fixing efficiency of the workpiece is improved.

[0030] Optionally, the adjusting block is provided with an adjusting opening, the width of the adjusting opening is greater than the width of the abutting plate, the abutting plate passes through the adjusting opening, the abutting plate can move along the direction close to or away from the rotating hole, the adjusting block is slidably connected with an adjusting handle, one end of the adjusting handle extends into the adjusting opening, the adjusting handle can move along the direction close to or away from the rotating hole, and the adjusting handle is provided with an inserting opening, the abutting plate passes through the inserting opening and is matched with the inserting opening.

[0031] By adopting the above technical scheme, different workpiece shapes and sizes make the abutting plate need to abut against different parts of the workpiece to adjust the levelness of the workpiece. The user can move the adjusting handle, the adjusting handle drives the abutting plate to slide in the adjusting opening, so that the abutting plate can be moved to align with the corresponding part of the workpiece to realize the leveling of the workpiece.

[0032] In summary, the present application has at least one of the following beneficial technical effects:

[0033] 1. When machining, the clamping assembly fixes the workpiece, the position of the workpiece is adjusted by the first driving assembly and the adjusting assembly, so that the machining part of the workpiece is below the cutting tool, then the spindle box is started to drive the cutting tool to rotate, the second driving assembly drives the spindle box and the cutting tool to feed downward, so that the workpiece is machined. Since the supporting column is fixed on the bed, the X-axis direction and the Y-axis direction of the supporting column are constrained, and the two sides of the spindle box are constrained by the X-axis direction and the Y-axis direction of the same side supporting column, so that the stability of the machine tool is improved under the high-speed rotation of the cutting tool, and the machining quality of the workpiece is improved, and the machine tool can be used for machining high-rigidity and high-precision hardware tools.

[0034] 2. After the workpiece is adjusted to be horizontal, the abutting bolt is tightened, and the moving block is abutted on the clamping seat, so that the shaking of the moving block during machining is reduced, and the workpiece is prevented from swinging around the supporting shaft, which is beneficial to improve the machining precision of the workpiece.

[0035] 3. The liquid and oil supply systems are integrated on the bed body and support column, which reduces the overall space occupied by the machine tool. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application.

[0037] Figure 2 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the slider and the hard rail.

[0038] Figure 3 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the second driving assembly.

[0039] Figure 4 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the first driving assembly.

[0040] Figure 5 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the adjusting assembly.

[0041] Figure 6 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the indicating plate and the indicating block.

[0042] Figure 7 is a schematic diagram of the structure of embodiment 1 of the present application for embodying the water storage tank.

[0043] Figure 8 is a schematic diagram of the overall structure of embodiment 2 of the present application for embodying the clamping assembly.

[0044] Figure 9 is a schematic diagram of the structure of embodiment 2 of the present application for embodying the rotating hole and the support column

[0045] Explanation of reference signs: 1, bed body; 11, protective plate; 111, connecting port; 12, workbench; 13, first driving assembly; 131, first servo motor; 132, first lead screw; 133, first nut seat; 14, mounting bottom plate; 15, adjusting assembly; 151, fixed block; 152, rotating screw; 153, adjusting nut; 154, nut block; 155, first shroud; 156, second shroud; 16, mounting support; 161, indicating plate; 162, indicating block; 2, supporting column; 21, sliding block; 22, connecting beam; 23, second driving assembly; 231, second servo motor; 232, second lead screw; 233, second nut seat; 3, main shaft box; 31, hard rail; 32, cutting tool; 5, first storage space; 51, water pump; 52, liquid outlet pipe; 53, water storage tank; 531, filtered area; 532, to-be-filtered area; 54, filter screen; 55, liquid inlet pipe; 56, liquid discharge pipe; 6, second storage space; 61, oil pump; 62, oil outlet module; 7, clamping assembly; 71, clamping seat; 72, fixed plate; 73, bearing plate; 74, driving piece; 741, hydraulic cylinder; 742, pushing block; 75, abutting plate; 751, supporting shaft; 76, adjusting piece; 761, moving block; 762, adjusting screw; 763, supporting block; 764, adjusting hole; 765, abutting bolt; 77, first sliding seat; 771, first clamping plate; 772, rotating hole; 78, second sliding seat; 781, second clamping plate; 782, supporting column; 79, driving motor; 791, adjusting rod; 792, first threaded section; 793, second threaded section; 8, adjusting block; 81, supporting plate; 82, adjusting bolt; 83, adjusting port; 84, adjusting handle; 841, plug-in port; 85, abutting plate. DETAILED DESCRIPTION

[0046] The following will be described in detail below with reference to the accompanying drawings. Figures 1-9 The present application is further described in detail.

[0047] Embodiment 1

[0048] Embodiment 1 of the present application discloses a high-rigidity high-precision numerical control forming machine tool.

[0049] As Figure 1 , Figure 2 and Figure 3The high-rigidity and high-precision numerical control forming machine tool comprises a bed body 1, two supporting columns 2 are bolted on the bed body 1, a main shaft box 3 is arranged between the two supporting columns 2, hard rails 31 are arranged on the two side faces of the main shaft box 3, a sliding block 21 is arranged on the side of the supporting column 2 facing the main shaft box 3, the sliding block 21 is buckled on the hard rail 31, thereby realizing the sliding connection of the main shaft box 3 and the two supporting columns 2, two connecting beams 22 are jointly bolted on the top of the two supporting columns 2, a second driving assembly 23 for driving the main shaft box 3 to move along the Z-axis direction is arranged on one supporting column 2, the second driving assembly 23 of the embodiment of the application adopts a lead screw structure, a second servo motor 231 is arranged on one supporting column 2, the second servo motor 231 is connected with a second lead screw 232, the second lead screw 232 is arranged along the Z-axis direction, and the second lead screw 232 is rotationally connected with the supporting column 2, a second nut seat 233 is threadedly connected on the second lead screw 232, and the second nut seat 233 is fixed with the main shaft box 3. A cutting tool 32 is connected with the driving shaft of the main shaft box 3, and the second driving assembly 23 of other embodiments can be a pneumatic cylinder or a hydraulic cylinder.

[0050] As Figure 1 And Figure 4 A protective plate 11 is bolted on the bed body 1, a workbench 12 is slidably connected on the protective plate 11, a first driving assembly 13 for driving the workbench 12 to slide along the X-axis direction is arranged on the protective plate 11, the first driving assembly 13 of the embodiment of the application comprises a first servo motor 131, the first servo motor 131 is connected with a first lead screw 132, the first lead screw 132 is arranged along the X-axis direction, the first lead screw 132 is rotationally connected with the protective plate 11, a first nut seat 133 is threadedly connected on the first lead screw 132, and the first nut seat 133 is fixed with the workbench 12. The first driving assembly 13 of other embodiments can be a pneumatic cylinder or a hydraulic cylinder.

[0051] As Figure 1 And Figure 5 A mounting bottom plate 14 is slidably connected on the workbench 12, an adjusting assembly 15 for adjusting the mounting bottom plate 14 to move along the Y-axis direction is arranged on the workbench 12, the adjusting assembly 15 of the embodiment of the application comprises a fixed block 151, the fixed block 151 is fixed on the workbench 12, the fixed block 151 is rotationally connected with a rotating screw 152, the rotating screw 152 is arranged along the Y-axis direction, the rotating screw 152 is fixed with an adjusting nut 153, a nut block 154 is mounted on the mounting bottom plate 14, the rotating screw 152 is threadedly connected with the nut block 154, and the rotating screw 152 penetrates into the mounting bottom plate 14, a first protective cover 155 is bolted on the mounting bottom plate 14, a second protective cover 156 is fixed on the fixed block 151, the second protective cover 156 is sleeved in the first protective cover 155, and the first protective cover 155 and the second protective cover 156 jointly cover the part of the rotating screw 152 extending out of the mounting bottom plate 14 and the fixed block 151.

[0052] As Figure 6 , the workbench 12 is fixed with a mounting bracket 16, the mounting bracket 16 is fixed with an indication board 161, the indication board 161 is slidably connected with an indication block 162, the indication block 162 slides along the Y-axis direction, and the indication block 162 is bolted to one side of the mounting bottom plate 14. The mounting bottom plate 14 is provided with a clamping assembly 7 for clamping a workpiece, and the cutting tool 32 is located above the clamping assembly 7.

[0053] As Figure 1 , Figure 4 and Figure 7 , the bottom part of the bed 1 is separated by a partition plate into a first storage space 5 for storing cutting fluid and a second storage space 6 for storing hydraulic oil, and the first storage space 5 and the second storage space 6 are respectively located at both ends of the bed 1;

[0054] The first storage space 5 is fixed with a water pump 51, and the support column 2 on the same side of the first storage space 5 is fixed with a liquid outlet pipe 52, the water pump 51 is communicated with the liquid outlet pipe 52 through a hose, and the end of the bed 1 close to the first storage space 5 is bolted with a water storage tank 53, the water storage tank 53 is communicated with the first storage space 5, and the water storage tank 53 is provided with a filter screen 54, the filter screen 54 separates the water storage tank 53 into a filtered area 531 and a to-be-filtered area 532, the water storage tank 53 is connected with a liquid inlet pipe 55 for collecting used cutting fluid flowing into the to-be-filtered area 532, the workbench 12 is communicated with a liquid outlet pipe 56, and the protection plate 11 is provided with a connecting port 111, the liquid inlet pipe 55 and the liquid outlet pipe 56 are also connected through the hose passing through the connecting port 111;

[0055] The second storage space 6 is fixed with an oil pump 61, and the support column 2 on the same side of the second storage space 6 is fixed with an oil outlet module 62, and the oil pump 61 is communicated with the oil outlet module 62 through a hose extending out of the bed 1.

[0056] Before processing, the workpiece is fixed by the clamping assembly 7, the first servo motor 131 drives the first lead screw 132 to rotate, the first lead screw 132 drives the first nut block 133 to move, the first nut block 133 drives the workbench 12 to move along the X-axis direction, and the mounting bottom plate 14 and the clamping assembly 7 move along the X-axis direction with the workbench 12, so as to realize the adjustment of the workpiece along the X-axis direction;

[0057] Then, the adjusting nut 153 is manually rotated, the adjusting nut 153 drives the rotating screw 152 to rotate, the rotating screw 152 drives the nut block 154 to move, so as to realize the movement of the nut block 154, the mounting bottom plate 14 and the clamping assembly 7 along the Y-axis direction, thereby realizing the adjustment of the workpiece along the Y-axis direction;

[0058] The machining position of the workpiece is located below the cutting tool 32, then the spindle box 3 is started to drive the cutting tool 32 to rotate, the second servo motor 231 drives the second screw rod 232 to rotate, and the second nut seat 233 drives the spindle box 3 and the cutting tool 32 to descend for feeding, so as to realize the machining of the workpiece. Since the support column 2 is fixed on the bed body 1 and is connected and fixed by the connecting beam 22, the X-axis direction and the Y-axis direction of the support column 2 are constrained, and the two sides of the spindle box 3 are constrained by the X-axis direction and the Y-axis direction of the same side support column 2. The stability of the machine tool under the high-speed rotation of the cutting tool is improved, and the machining quality of the workpiece is improved. The machine tool can be used for machining high-rigidity and high-precision hardware tools.

[0059] During the machining process, the water pump 51 pumps the cutting fluid in the first storage space 5 and discharges it from the liquid outlet pipe 52 for cooperation with the cutting tool 32 for machining. The used cutting fluid is collected on the workbench 12, then flows into the water storage tank 53 through the liquid outlet pipe 56 and the liquid inlet pipe 55 in turn, and the used cutting fluid flows from the unfiltered area 532 to the filtered area 531 and is filtered by the filter screen 54. Finally, the used cutting fluid is returned to the first storage space 5 for use. The oil pump 61 pumps the hydraulic oil in the second storage space 6 for oil supply. The liquid supply system and the oil supply system are integrated on the bed body 1 and the support column 2, which reduces the overall space occupied by the machine tool.

[0060] As Figure 5 and Figure 6 The clamping assembly 7 comprises a clamping seat 71 which is bolted on the mounting bottom plate 14. A fixed plate 72 is bolted on the clamping seat 71. The fixed plate 72 is arranged on the side of the clamping seat 71 close to the support frame. A receiving plate 73 is mounted on the side of the fixed plate 72 away from the support frame. A clamping plate 75 is slidably arranged on the clamping seat 71. A support shaft 751 is fixed on the side of the clamping plate 75 facing the fixed plate 72. A driving member 74 for driving the clamping plate 75 to move along the X-axis direction is mounted on the clamping seat 71. In the embodiment of the application, the driving member 74 is a hydraulic cylinder 741. The hydraulic cylinder 741 is fixed on the clamping seat 71. The piston rod of the hydraulic cylinder 741 penetrates through the clamping seat 71. A pushing block 742 is fixed on the piston rod of the hydraulic cylinder 741. The clamping plate 75 is fixed on the pushing block 742. A groove is formed in the clamping plate 75 for inserting the receiving plate 73. A hole is formed in the receiving plate 73 for penetrating the support shaft 751 and inserting into the fixed plate 72.

[0061] The workpiece is placed on the receiving plate 73. The workpiece is located between the fixed plate 72 and the clamping plate 75. The clamping plate 75 abuts against the workpiece. The support shaft 751 penetrates the hole of the workpiece and inserts into the fixed plate 72. An adjusting member 76 for adjusting the angle of the workpiece is arranged on the clamping seat 71.

[0062] The adjusting member 76 comprises a moving block 761 which is slidingly arranged on the clamping seat 71 and located at one side of the fixed plate 72, the clamping seat 71 is rotationally connected with an adjusting screw 762 arranged along the Y-axis direction, the adjusting screw 762 is threadedly connected with the moving block 761, and the moving block 761 is provided with a supporting block 763, the longitudinal section of the supporting block 763 is a variable section, and in the embodiment of the application, the top surface of the supporting block 763 is an arc surface, and the workpiece to be machined is supported on the top surface of the supporting block 763;

[0063] The moving block 761 is provided with an adjusting hole 764 along the sliding direction, the adjusting hole 764 is a waist-shaped hole, the moving block 761 is provided with a clamping bolt 765 penetrating through the adjusting hole 764, the clamping bolt 765 is threadedly connected with the clamping seat 71, after the angle of the workpiece is adjusted, the clamping bolt 765 is tightly clamped with the moving block 761, and the moving block 761 is tightly clamped with the clamping seat 71.

[0064] The workpiece is placed on the supporting plate 73, then the hydraulic cylinder 741 drives the pushing block 742 to move, the pushing block 742 drives the clamping plate 75 to move towards the fixed plate 72, the supporting shaft 751 is inserted into the hole of the workpiece after penetrating through the hole of the supporting plate 73, then the supporting shaft 751 is inserted into the fixed plate 72 and makes the workpiece contact with the fixed plate 72;

[0065] When the workpiece contacts with the fixed plate 72, the workpiece is supported on the supporting block 763, then the adjusting screw 762 is rotated, the adjusting screw 762 drives the moving block 761 to move, the moving block 761 drives the supporting block 763 to move, the supporting block 763 gradually rotates around the supporting shaft 751 by pressing the workpiece, and when the workpiece is in a horizontal state, the adjustment of the horizontal degree of the workpiece is completed;

[0066] After the workpiece is adjusted to be horizontal, the clamping bolt 765 is tightened to tightly clamp the moving block 761 on the clamping seat 71, so that the workpiece is prevented from swinging around the supporting shaft 751 due to shaking of the moving block 761 in the machining process, and the machining precision of the workpiece is improved;

[0067] Finally, the hydraulic cylinder 741 continues to drive the clamping plate 75, so that the workpiece is clamped between the fixed plate 72 and the clamping plate 75, and the fixation of the workpiece is completed.

[0068] The principle of the embodiment of the present application is that when machining, the clamping assembly 7 fixes the workpiece, the position of the workpiece is adjusted through the first driving assembly 13 and the adjusting assembly 15, the machining part of the workpiece is located below the cutting tool 32, then the main shaft box 3 drives the cutting tool 32 to rotate, the second driving assembly 23 drives the main shaft box 3 and the cutting tool 32 to feed downward, so as to realize machining of the workpiece. Since the supporting column 2 is fixed on the bed body 1, the X-axis direction and the Y-axis direction of the supporting column 2 are constrained, and the two sides of the main shaft box 3 are constrained by the X-axis direction and the Y-axis direction of the same side supporting column 2, thereby improving the stability of the machine tool under high-speed rotation of the cutting tool, and further improving the machining quality of the workpiece, and enabling the machine tool to be used for machining high-rigidity and high-precision hardware tools.

[0069] Embodiment 2

[0070] With reference to Figure 8 and Figure 9 , the difference between the embodiment and the embodiment 1 is that:

[0071] The clamping assembly 7 comprises a first sliding seat 77 and a second sliding seat 78, the first sliding seat 77 and the second sliding seat 78 are slidingly connected to the mounting bottom plate 14, the mounting bottom plate 14 is provided with a driving motor 79, the driving motor 79 is connected with an adjusting rod 791, the adjusting rod 791 is arranged along the X-axis direction, one end of the adjusting rod 791 is provided with a first threaded section 792, the other end is provided with a second threaded section 793, the screw directions of the first threaded section 792 and the second threaded section 793 are opposite, the first sliding seat 77 is threadedly connected with the first threaded section 792, the second sliding seat 78 is threadedly connected with the second threaded section 793, the first sliding seat 77 is fixed with a first clamping plate 771, the second sliding seat 78 is fixed with a second clamping plate 781, the first clamping plate 771 and the second clamping plate 781 are opposite to each other;

[0072] A supporting column 782 is fixed at the center of the second clamping plate 781, a rotating hole 772 is formed in the first clamping plate 771, the supporting column 782 is opposite to the rotating hole 772, one side of the first sliding seat 77 is fixed with an adjusting block 8, the adjusting block 8 is slidingly connected with a supporting plate 81, the supporting plate 81 slides along the Z-axis direction, the adjusting block 8 is rotationally connected with an adjusting bolt 82, the adjusting bolt 82 is arranged along the Z-axis direction, and the adjusting bolt 82 is threadedly connected with the supporting plate 81;

[0073] The adjusting block 8 is provided with an adjusting opening 83 located along the Y-axis direction, the adjusting opening 83 is a long opening, the adjusting opening 83 is located above the supporting plate 81, the adjusting block 8 is slidingly connected with an adjusting handle 84, one end of the adjusting handle 84 extends into the adjusting opening 83, the adjusting handle 84 can move along the direction close to or away from the rotating hole 772, the adjusting handle 84 is provided with a plug-in opening 841, the caliber of the plug-in opening 841 is smaller than the caliber of the adjusting opening 83, the adjusting block 8 is provided with an abutting plate 85 through the plug-in opening 841 and the adjusting opening 83, the abutting plate 85 is matched with the plug-in opening 841, and the abutting plate 85 is located above the supporting plate 81.

[0074] When the workpiece is clamped, the workpiece is sleeved on the supporting column 782, then the driving motor 79 is started, the driving motor 79 drives the adjusting rod 791 to rotate, the first sliding seat 77 and the second sliding seat 78 move towards each other, when the second clamping plate 781 pushes the workpiece to be located above the supporting plate 81, the abutting plate 85 is inserted into the adjusting block 8, at this time, the abutting plate 85 is located above the workpiece, then the adjusting bolt 82 is rotated, the adjusting bolt 82 drives the supporting plate 81 to rise and clamps the machining end of the workpiece between the abutting plate 85 and the supporting plate 81, so that the workpiece is adjusted to a horizontal state, finally, the driving motor 79 is started to drive the first clamping plate 771 and the second clamping plate 781 to clamp the workpiece, and the abutting plate 85 is extracted, so that the fixation of the workpiece is completed, the abutting plate 85 enables the workpiece to be quickly adjusted to a horizontal state, without the need for manual observation to slowly adjust, and the fixation efficiency of the workpiece is improved;

[0075] And different workpiece shapes and sizes make the abutting plate 85 need to abut different parts of the workpiece to adjust the levelness of the workpiece, the user can move the adjusting handle 84, the adjusting handle 84 drives the abutting plate 85 to slide in the adjusting opening 83, so that the abutting plate 85 can be moved to align with the corresponding part of the workpiece to realize the leveling of the workpiece.

[0076] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-rigidity, high-precision CNC forming machine tool, characterized in that: The application relates to a lathe bed (1) which is provided with at least two support columns (2) fixedly arranged on the lathe bed (1), adjacent support columns (2) are connected through a connecting beam (22), a main shaft box (3) is arranged on the lathe bed (1), the main shaft box (3) is slidably connected with the support column (2) on the same side, the main shaft box (3) is connected with a cutting tool (32), a clamping assembly (7) for clamping a workpiece is arranged on the lathe bed (1), a first driving assembly (13) for driving the clamping assembly (7) to move along the X-axis direction is arranged on the lathe bed (1), an adjusting assembly (15) for driving the clamping assembly (7) to move along the Y-axis direction is arranged on the lathe bed (1), and a second driving assembly (23) for driving the main shaft box (3) to move along the Z-axis direction is arranged on the support column (2). The clamping assembly (7) comprises a clamping seat (71), a fixed plate (72) is arranged on the clamping seat (71), a pressing plate (75) is slidably connected to the clamping seat (71), a support shaft (751) is arranged on the pressing plate (75), a driving piece (74) for driving the pressing plate (75) to move along the X-axis direction is arranged on the clamping seat (71), a workpiece is located between the fixed plate (72) and the pressing plate (75), the pressing plate (75) tightly abuts against the workpiece, the support shaft (751) is inserted into a hole of the workpiece, and an adjusting piece (76) for adjusting the angle of the workpiece is arranged on the clamping seat (71). The adjusting piece (76) comprises a moving block (761) which is slidably arranged on the clamping seat (71), the clamping seat (71) is rotationally connected with an adjusting screw (762), the adjusting screw (762) is threadedly connected with the moving block (761), a support block (763) is arranged on the moving block (761), the longitudinal section of the support block (763) is a variable section, and a machined part of the workpiece is supported on the support block (763). The moving block (761) is provided with an adjusting hole (764) along the sliding direction, the moving block (761) is provided with a pressing bolt (765) penetrating through the adjusting hole (764), the pressing bolt (765) is threadedly connected with the clamping seat (71), after the angle of the workpiece is adjusted, the pressing bolt (765) tightly abuts against the moving block (761), and the moving block (761) tightly abuts against the clamping seat (71).

2. The high stiffness high precision CNC forming machine of claim 1, wherein: The lathe bed (1) is slidably connected with a workbench (12), the workbench (12) is slidably connected with a mounting bottom plate (14), and the clamping assembly (7) is mounted on the mounting bottom plate (14). The first driving assembly (13) comprises a first servo motor (131), the first servo motor (131) is connected with a first lead screw (132), the first lead screw (132) is rotationally connected with the lathe bed (1), the first lead screw (132) is threadedly connected with a first nut seat (133), and the first nut seat (133) is fixed with the workbench (12).

3. The high stiffness high precision CNC forming machine of claim 2, wherein: The adjusting assembly (15) is arranged on the workbench (12), the adjusting assembly (15) includes a fixed block (151), the fixed block (151) is fixed on the workbench (12), the fixed block (151) is rotatably connected with a rotating screw rod (152), the rotating screw rod (152) is arranged along the Y axis direction, the rotating screw rod (152) is fixed with an adjusting nut (153), the mounting bottom plate (14) is provided with a nut block (154), and the nut block (154) is in threaded connection with the rotating screw rod (152).

4. The high stiffness high precision CNC forming machine of claim 3, wherein: The workbench (12) is fixed with a mounting bracket (16), the mounting bracket (16) is provided with an indication plate (161), the indication plate (161) is slidably connected with an indication block (162), the indication block (162) can slide along the Y axis direction, and the indication block (162) is fixed with the mounting bottom plate (14).

5. The high stiffness high precision CNC forming machine of claim 1, wherein: The bed body (1) is divided into a first storage space (5) for storing cutting fluid and a second storage space (6) for storing hydraulic oil at the bottom; The first storage space (5) is provided with a water pump (51), one of the support columns (2) is provided with a liquid outlet pipe (52), the water pump (51) is in communication with the liquid outlet pipe (52), one side of the bed body (1) is provided with a water storage tank (53), the water storage tank (53) is in communication with the first storage space (5), the water storage tank (53) is provided with a filter screen (54), the filter screen (54) divides the water storage tank (53) into a filtered area (531) and a to-be-filtered area (532), and the water storage tank (53) is connected with a liquid inlet pipe (55) for collecting used cutting fluid flowing into the to-be-filtered area (532); The second storage space (6) is provided with an oil pump (61), and one of the support columns (2) is provided with an oil outlet module (62), the oil pump (61) is in communication with the oil outlet module (62).

Images