A numerically controlled horizontal boring and milling machine and a method of using the same

Abstract

The present invention discloses a CNC horizontal boring and milling machine and a method for using the same, and relates to the technical field of boring and milling machines. The machine comprises a bed, a pair of fixed transverse axes are arranged on the bed, a hollow worm is sleeved on the fixed transverse axes, a first slide rail is arranged above the hollow worm; a fixed block is arranged between the pair of first slide rails, a pair of first slide plates are fixed on the fixed block, a pair of second slide rails are fixed on both sides of the pair of first slide plates, a rectangular slide frame is clamped between the pair of second slide rails, a translation plate is arranged above the rectangular slide frame; an annular rail is fixed on the translation plate, a fixed swivel is clamped in the annular rail, a fixed plate is fixed on the fixed swivel, and a workpiece is placed on the fixed plate. The present invention can reasonably arrange the translation path of the workpiece according to the processing technology requirements, so that the tool can move in a more efficient path during the processing process, reduce the travel time of the tool, and increase the proportion of cutting time in the entire processing cycle, thereby improving the overall processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of boring and milling machines, and in particular to a numerically controlled horizontal boring and milling machine and a use method thereof. Background Art

[0002] Boring and milling machines are large-scale equipment used for processing planes, curves and various complex shapes. They are widely used in machinery manufacturing, aerospace, automobile manufacturing and other industries. With the continuous improvement of modern manufacturing industry's requirements for processing accuracy and efficiency, traditional boring and milling machines can no longer meet market demand, and CNC horizontal boring and milling machines have emerged.

[0003] The Chinese invention patent discloses a CNC horizontal boring and milling machine (publication number: CN116984901B), which includes a bed, a workbench arranged on the front side of the bed, an X-axis linear module arranged on the bed, a saddle arranged at the output end of the X-axis linear module, a column arranged on the saddle, a Y-axis linear module arranged on the column, a slide saddle arranged at the output end of the Y-axis linear module, a Z-axis linear module arranged on the slide saddle, and an electric spindle arranged on the Z-axis linear module.

[0004] However, the above-mentioned patent and the universal fixtures of boring and milling machines currently available on the market may not be able to quickly and accurately position and clamp the workpiece, and require many manual operation steps, including tightening bolts, adjusting positions, etc., and cannot achieve quick clamping like an automatic chuck; when the boring and milling machine performs multi-directional adjustments such as forward and backward translation and rotation on the workpiece, it is often necessary to manually operate the moving mechanism and rotating mechanism of the worktable, and the operator needs to spend a lot of time to make precise adjustments, which makes the operation difficult. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a CNC horizontal boring and milling machine and a method of using the same.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] The present invention provides a CNC horizontal boring and milling machine, comprising a bed, a pair of parallel fixed transverse shafts are arranged on the front and rear sides of the top surface of the bed, each of the fixed transverse shafts is sleeved with a concentrically fixed hollow worm, and a parallel first slide rail is arranged above each of the hollow worms;

[0008] A suspended fixed block is provided between the pair of first slide rails, and a pair of first slide plates are fixedly provided on the front and rear side walls of the fixed block, and each of the first slide plates is slidably engaged in the corresponding first slide rail;

[0009] A pair of second slide rails are fixedly arranged on the left and right sides of the pair of first slide plates, a rectangular slide frame is slidably engaged between the pair of second slide rails, and a suspended translation plate is arranged above the rectangular slide frame;

[0010] A circular through hole is opened in the middle of the top surface of the translation plate, an annular rail is fixedly arranged on the top surface of the translation plate, a fixed swivel is rotatably engaged inside the annular rail, and a fixed plate is fixedly arranged on the top surface of the fixed swivel;

[0011] A workpiece is placed in the middle of the top surface of the fixed plate, and rectangular ear seats are fixed in the middle of the four side edges of the top surface of the fixed plate. A rectangular slide is slidably inserted on the top of each of the rectangular ear seats, and a vertically distributed elliptical connecting plate is fixed to the inner end of each of the rectangular slides. A U-shaped clamp is fixed to the middle section of each of the elliptical connecting plates, and each of the U-shaped clamps rests on the workpiece.

[0012] Preferably, both ends of the bottom surface of each of the first slide rails are fixedly provided with fixed ear seats, the bottom end of each of the fixed ear seats is fixedly connected to the top surface of the bed, and both ends of each of the fixed horizontal shafts are rotatably inserted into the corresponding fixed ear seats;

[0013] A pair of staggered first U-shaped clamps are fixed on both sides of the top surface of the bed, and a first motor with an output end facing inward is installed in the opening of each first U-shaped clamp, and the motor shaft end of each first motor is coaxially connected to the adjacent fixed horizontal axis.

[0014] Preferably, each of the first slide rails is provided with an elliptical long pin hole, each of the first slide plates is fixed with an elliptical long slider, and each of the elliptical long sliders is slidably engaged in the corresponding elliptical long pin hole;

[0015] Each of the second slide rails is provided with an elliptical short pin hole, and the left and right side walls of the rectangular slide frame are fixed with a pair of elliptical short sliders, and each of the elliptical short sliders is slidably engaged in the corresponding elliptical short pin hole;

[0016] A pair of L-shaped connecting plates are fixedly arranged on the front and rear sides of the top surface of the rectangular sliding frame, and the top surface of each L-shaped connecting plate is fixedly connected to the bottom surface of the translation plate.

[0017] Preferably, a driven rack is fixed in the rectangular sliding frame, a fixed shaft is rotatably inserted in the middle of the fixed block and is distributed through it, the bottom end of the fixed shaft is sleeved with a concentrically fixed worm wheel, the worm wheel is meshingly connected with a pair of hollow worms, and the top end of the fixed shaft is sleeved with a concentrically fixed fixed gear, and the fixed gear is meshingly connected with the driven rack.

[0018] Preferably, a concentrically fixed external gear ring is sleeved in the middle of the outer side surface of the fixed rotating ring, and linkage shafts are rotatably inserted at the four corners of the top surface of the translation plate, and the top end of each linkage shaft is sleeved with a concentrically fixed linkage gear, and each of the linkage gears is meshed and connected with the external gear ring.

[0019] Preferably, a pair of U-shaped notches are provided on the left and right sides of the translation plate, a second U-shaped clip is fixedly provided inside each of the U-shaped notches, a second motor with the output end facing upward is installed in the opening of each of the second U-shaped clips, a concentrically fixed drive gear is sleeved on the end of the motor shaft of each of the second motors, and each of the drive gears is meshedly connected to the outer gear ring.

[0020] Preferably, a pair of swing shafts are rotatably inserted at the four corners of the top surface of the fixed plate, the top end of each swing shaft is sleeved with a concentrically fixed notched gear, and the adjacent pairs of notched gears are meshed and connected, and the notched part of each notched gear is fixed with a limiting swing arm.

[0021] Preferably, a limiting pin is fixedly provided at the outer end of each of the limiting swing arms, and elliptical pin holes are provided at both ends of each of the elliptical connecting plates, and the top end of each of the limiting pins is slidably engaged in the corresponding elliptical pin hole.

[0022] Preferably, a pair of symmetrically distributed rectangular rings are fixedly provided on the front and rear sides of the bottom surface of the fixed plate, an electric telescopic cylinder with the telescopic end facing outward is installed inside each of the rectangular rings, a limiting connecting plate is fixedly provided at the end of the telescopic rod of each of the electric telescopic cylinders, and the top end of each of the limiting connecting plates is fixedly connected to the outer end of the rectangular slide on the same side.

[0023] The present invention also provides a method for using a CNC horizontal boring and milling machine, which uses the above CNC horizontal boring and milling machine and includes the following steps:

[0024] Step 1: Place the workpiece in the middle of the top surface of the fixed plate. Under the driving action of a pair of electric telescopic cylinders, the telescopic rods of the electric telescopic cylinders are shortened, and the rectangular slides, elliptical connecting plates and U-shaped clamping plates on the front and rear sides are driven to translate inward along the rectangular ear seats through the limit connecting plates.

[0025] Under the limiting action of the limiting pin shaft and the elliptical pin hole, the corresponding limiting swing arm and notch gear are driven to rotate, and the meshing of the notch gear drives the adjacent notch gear and limiting swing arm to rotate, and simultaneously drives the rectangular slide plates, elliptical connecting plates and U-shaped clamping plates on the left and right sides to translate inward along the rectangular ear seat; the workpiece is clamped and fixed in the center by the synchronous closing of the four U-shaped clamping plates;

[0026] Step 2: Under the driving action of a pair of first motors, the workpiece is driven to translate in different directions:

[0027] When the workpiece is driven to translate to the left, a pair of first motors are controlled to rotate forward synchronously, driving a pair of fixed horizontal shafts and a pair of hollow worms to rotate forward synchronously, while the worm gear remains stationary, driving the worm gear, the fixed shaft, the fixed block and a pair of first slide plates to translate to the left along the first slide rail, and synchronously driving the rectangular slide frame, the translation plate, the fixed plate and the workpiece to translate to the left;

[0028] When the workpiece is driven to translate to the right, a pair of first motors are controlled to rotate synchronously in the opposite direction, driving a pair of fixed horizontal shafts and a pair of hollow worms to rotate synchronously in the opposite direction, while the worm gear remains stationary, driving the worm gear, the fixed shaft, the fixed block and a pair of first slide plates to translate to the right along the first slide rail, and synchronously driving the rectangular slide frame, the translation plate, the fixed plate and the workpiece to translate to the right;

[0029] When the workpiece is driven to translate forward, a first motor is controlled to rotate forward, and another first motor is controlled to rotate reversely, and a pair of hollow worms are driven to rotate forward and reversely through the fixed horizontal shaft. The pair of hollow worms are engaged to drive the worm wheel, the fixed shaft, and the fixed gear to rotate counterclockwise, and the fixed gear is then engaged to drive the driven rack and the rectangular slide frame to slide forward along a pair of second slide rails, and synchronously drive the translation plate, the fixed plate and the workpiece to translate forward;

[0030] When the workpiece is driven to translate to the rear side, a first motor is controlled to rotate in the reverse direction, and another first motor is controlled to rotate forwardly, and a pair of hollow worms are driven to rotate in the reverse direction and forwardly through the fixed horizontal shaft. The pair of hollow worms are engaged to drive the worm wheel, the fixed shaft, and the fixed gear to rotate clockwise, and the fixed gear is then engaged to drive the driven rack and the rectangular slide frame to slide backward along the pair of second slide rails, and synchronously drive the translation plate, the fixed plate and the workpiece to translate to the rear side;

[0031] Step three, under the driving action of a pair of second motors, the motor shaft of the second motor drives the driving gear to rotate, and the driving gear then engages to drive the outer gear ring and the fixed swivel to rotate along the annular rail, and the outer gear ring engages to drive the linkage gear and the linkage shaft to rotate, and the fixed swivel synchronously drives the fixed plate and the workpiece to rotate to a suitable processing angle, and the surface of the workpiece is processed by the tool on the bed.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. In the present invention, during the boring and milling process, the cutting of the tool and the workpiece will generate vibration. The four U-shaped clamping plates can clamp the workpiece from the bottom of the side in the middle under the driving action of a pair of electric telescopic cylinders, which can provide stable support for the workpiece, effectively absorb and suppress vibration, reduce vibration, improve the quality of the processed surface, avoid abnormal wear of the tool due to vibration, and extend the service life of the tool;

[0034] Since the workpiece can be quickly and accurately centered, the time for adjusting the position of the workpiece on the boring and milling machine is reduced, and the operator can perform clamping operations more quickly. For batch-produced workpieces, the position consistency can be guaranteed each time they are clamped, and repeated calibration is unnecessary, which greatly improves production efficiency.

[0035] 2. In the present invention, the workpiece can be rotated under the driving action of a pair of second motors. The workpiece can be rotated to process different sides of the workpiece without removing the workpiece from the boring and milling machine and re-clamping it, which greatly reduces the time required for clamping. In particular, for multi-faceted processing of workpieces with complex shapes, it is conducive to realizing continuous processing procedures without being restricted by traditional fixed clamping methods, making the design of the processing technology more flexible.

[0036] After processing one surface, it can quickly rotate to the next surface for processing without interrupting the processing flow to change the clamping method. It is particularly suitable for workpieces that need to perform the same or similar processing operations (such as drilling, milling, etc.) on multiple surfaces, which can effectively shorten the processing cycle of the entire workpiece;

[0037] 3. In the present invention, under the driving action of the first motor, the workpiece can be driven to achieve forward, backward, left and right translation. For workpieces with complex shapes and multiple different depth processing requirements, the forward, backward, left and right translation of the workpiece can better meet the processing requirements. The tool can be accurately moved to the corresponding position by translating the workpiece, without the need to redesign complex fixtures or change the processing technology;

[0038] The position of the workpiece can be flexibly adjusted according to the specific processing task, so that various processing requirements can be efficiently completed on the same boring and milling machine, which improves the versatility of the boring and milling machine. The workpiece can be adapted to the depth in different directions by translating the workpiece, without the need to disassemble and re-clamp the workpiece from the boring and milling machine, which saves a lot of clamping time and adjustment time, and can significantly improve production efficiency;

[0039] 4. When the workpiece is adjusted in multiple directions such as front and back, left and right translation and rotation, it is sufficient to operate the electric telescopic cylinder, the first motor and the second motor, which can save adjustment time and has low operation difficulty.

[0040] To sum up, the present invention can reasonably arrange the translation path of the workpiece according to the processing technology requirements, so that the tool can move in a more efficient path during the processing, which can reduce the tool travel time and increase the proportion of cutting time in the entire processing cycle, thereby improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0042] Figure 1 It is a schematic diagram of the overall structure (including processed parts) of the present invention;

[0043] Figure 2 It is a schematic diagram of the overall structure (excluding processed parts) of the present invention;

[0044] Figure 3 It is an exploded schematic diagram of the overall structure of the present invention;

[0045] Figure 4 It is a structural schematic diagram of a bed and a pair of first slide rails in the present invention;

[0046] Figure 5 for Figure 4 Explosion diagram of

[0047] Figure 6 It is a schematic diagram of the structure of the fixed block and the rectangular sliding frame in the present invention;

[0048] Figure 7 for Figure 6 Explosion diagram of

[0049] Figure 8 It is a schematic diagram of the structure of the translation plate and the fixed rotating ring in the present invention;

[0050] Fig. 9 for Figure 8 Explosion diagram of

[0051] Fig.10 It is a schematic diagram of the structure of the fixing plate and four U-shaped clamping plates in the present invention;

[0052] Fig.11 for Fig.10 Explosion diagram of

[0053] Serial numbers in the figure: 1. bed; 11. fixed ear seat; 12. first motor; 13. fixed horizontal axis; 14. hollow worm; 15. first slide rail; 2. fixed block; 21. first slide plate; 22. second slide rail; 23. rectangular slide frame; 24. L-shaped connecting plate; 25. fixed shaft; 26. worm gear; 27. fixed gear; 28. driven rack; 3. translation plate; 31. annular rail; 32. fixed swivel; 33. outer gear ring; 34. linkage gear; 35. second motor; 36. driving gear; 4. fixed plate; 41. rectangular ear seat; 42. rectangular slide plate; 43. elliptical connecting plate; 44. U-shaped clamp; 45. notched gear; 46. limit swing arm; 47. limit pin shaft; 48. electric telescopic cylinder; 49. limit connecting plate; 5. workpiece. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0055] Embodiment 1: This embodiment provides a CNC horizontal boring and milling machine, see Figure 1-11 , comprising a bed 1, a pair of parallel fixed transverse shafts 13 are provided on the front and rear sides of the top surface of the bed 1, each fixed transverse shaft 13 is sleeved with a concentrically fixed hollow worm 14, and a parallel first slide rail 15 is provided above each hollow worm 14;

[0056] A suspended fixed block 2 is provided between the pair of first slide rails 15, and a pair of first slide plates 21 are fixedly provided on the front and rear side walls of the fixed block 2, and each first slide plate 21 is slidably engaged in the corresponding first slide rail 15; a pair of second slide rails 22 are fixedly provided on the left and right sides of the pair of first slide rails 21, and a rectangular slide frame 23 is slidably engaged between the pair of second slide rails 22, and a suspended translation plate 3 is provided above the rectangular slide frame 23;

[0057] A circular through hole is opened in the middle of the top surface of the translation plate 3, an annular rail 31 is fixed on the top surface of the translation plate 3, a fixed swivel 32 is rotatably engaged inside the annular rail 31, and a fixed plate 4 is fixed on the top surface of the fixed swivel 32;

[0058] A workpiece 5 is placed in the middle of the top surface of the fixed plate 4, and rectangular ear seats 41 are fixed in the middle of the four side edges of the top surface of the fixed plate 4. A rectangular slide plate 42 is slidably inserted on the top of each rectangular ear seat 41, and a vertically distributed elliptical connecting plate 43 is fixed to the inner end of each rectangular slide plate 42. A U-shaped clamping plate 44 is fixed to the middle section of each elliptical connecting plate 43, and each U-shaped clamping plate 44 is against the workpiece 5.

[0059] Embodiment 2: Based on Embodiment 1, this embodiment also includes the following contents:

[0060] like Figure 4-7 As shown, both ends of the bottom surface of each first slide rail 15 are fixed with fixed ear seats 11, the bottom end of each fixed ear seat 11 is fixedly connected to the top surface of the bed 1, and both ends of each fixed horizontal axis 13 are rotatably inserted into the corresponding fixed ear seat 11;

[0061] A pair of staggered first U-shaped pallets are fixed on both sides of the top surface of the bed 1, and a first motor 12 with an output end facing inward is installed in the opening of each first U-shaped pallet, and the motor shaft end of each first motor 12 is coaxially connected to the adjacent fixed horizontal shaft 13; under the driving action of the pair of first motors 12, the pair of fixed horizontal shafts 13 and the pair of hollow worms 14 can be driven to rotate;

[0062] Each first slide rail 15 is provided with an elliptical long pin hole, and each first slide plate 21 is fixed with an elliptical long slider, and each elliptical long slider is slidably engaged in the corresponding elliptical long pin hole, and the elliptical long slider can slide along the elliptical long pin hole to ensure the stability of the pair of first slide plates 21 sliding along the pair of first slide rails 15;

[0063] Each second slide rail 22 is provided with an elliptical short pin hole, and a pair of elliptical short sliders are fixedly provided on the left and right side walls of the rectangular slide frame 23. Each elliptical short slider is slidably engaged in the corresponding elliptical short pin hole, and the elliptical short slider can slide along the elliptical short pin hole to ensure the stability of the rectangular slide frame 23 sliding along the pair of second slide rails 22;

[0064] A pair of L-shaped connecting plates 24 are fixedly provided on the front and rear sides of the top surface of the rectangular sliding frame 23, and the top surface of each L-shaped connecting plate 24 is fixedly connected to the bottom surface of the translation plate 3;

[0065] A driven rack 28 is fixed in the rectangular sliding frame 23, a fixed shaft 25 is rotatably inserted in the middle of the fixed block 2 and is distributed throughout, a concentrically fixed worm gear 26 is sleeved on the bottom end of the fixed shaft 25, the worm gear 26 is meshed and connected with a pair of hollow worms 14, the pair of hollow worms 14 can mesh and drive the worm gear 26, the fixed shaft 25, and the fixed gear 27 to translate left and right or rotate forward and reversely, a concentrically fixed fixed gear 27 is sleeved on the top end of the fixed shaft 25, the fixed gear 27 is meshed and connected with the driven rack 28, the fixed gear 27 can mesh and drive the driven rack 28 and the rectangular sliding frame 23 to slide along the pair of second slide rails 22;

[0066] By translating the workpiece 5, the position of the workpiece 5 relative to the tool (not shown in the figure) on the vehicle body 1 can be accurately adjusted in the coordinate system of the boring and milling machine. When high-precision holes, grooves or planes need to be processed at different depths, this translation can ensure the accuracy of the processing position;

[0067] By translating the workpiece 5, the processing position can be adjusted in time so that the tool can still process the workpiece 5 at the correct position at different stages after wear. This can compensate for the influence of tool wear on the processing accuracy to a certain extent, extend the effective use time of the tool, and ensure the stability of the processing accuracy.

[0068] Embodiment 3: Based on Embodiment 2, this embodiment also includes the following contents:

[0069] like Figure 8 and Fig. 9As shown, a concentrically fixed outer gear ring 33 is sleeved on the middle of the outer side surface of the fixed rotating ring 32, and linkage shafts are rotatably inserted at the four corners of the top surface of the translation plate 3, and a concentrically fixed linkage gear 34 is sleeved on the top end of each linkage shaft, and each linkage gear 34 is meshed and connected with the outer gear ring 33; the outer gear ring 33 can mesh and drive the linkage gear 34 and the linkage shaft to rotate, and by setting a plurality of linkage gears 34 to mesh with the outer gear ring 33, the outer gear ring 33 can rotate stably to ensure the stability of the rotation adjustment of the workpiece 5;

[0070] A pair of U-shaped notches are provided on the left and right sides of the translation plate 3, and a second U-shaped cardboard is fixedly provided inside each U-shaped notch, and a second motor 35 with an output end facing upward is installed in the opening of each second U-shaped cardboard, and a concentrically fixed driving gear 36 is sleeved on the motor shaft end of each second motor 35, and each driving gear 36 is meshed and connected with the outer gear ring 33; the motor shaft of the second motor 35 can drive the driving gear 36 to rotate, and the driving gear 36 is then meshed to drive the outer gear ring 33 and the fixed rotating ring 32 to rotate along the annular rail 31, and the outer gear ring 33 is then meshed to drive the linkage gear 34 and the linkage shaft to rotate, so as to realize the rotation of the workpiece 5;

[0071] By rotating the workpiece 5, different sides of the workpiece 5 can be processed using the same tool and processing parameters, which can ensure that each surface has higher consistency in dimensional accuracy and shape accuracy; when it is necessary to process multiple surfaces with position accuracy requirements, the rotating workpiece 5 can be accurately adjusted in angle in the coordinate system of the boring and milling machine, which can effectively avoid the cumulative positioning errors caused by multiple clamping, thereby better ensuring the overall processing accuracy of the workpiece 5.

[0072] Embodiment 4: Based on Embodiment 3, this embodiment also includes the following contents:

[0073] like Fig.10 and Fig.11 As shown, a pair of swing shafts are rotatably inserted at the four corners of the top surface of the fixed plate 4, and the top end of each swing shaft is sleeved with a concentric fixed notch gear 45, and the adjacent pair of notch gears 45 are meshed and connected, and the notch portion of each notch gear 45 is fixed with a limit swing arm 46; due to the meshing action of the notch gear 45, the adjacent notch gears 45 and the limit swing arm 46 can be driven to rotate;

[0074] A limiting pin 47 is fixedly provided at the outer end of each limiting swing arm 46, and an elliptical pin hole is provided at both ends of each elliptical connecting plate 43. The top end of each limiting pin 47 is slidably engaged in the corresponding elliptical pin hole; under the limiting action of the limiting pin 47 and the elliptical pin hole, the corresponding limiting swing arm 46 and the notched gear 45 can be driven to rotate;

[0075] A pair of symmetrically distributed rectangular rings are fixedly provided on the front and rear sides of the bottom of the fixed plate 4, and an electric telescopic cylinder 48 with its telescopic end facing outward is installed inside each rectangular ring. A limit connecting plate 49 is fixedly provided at the end of the telescopic rod of each electric telescopic cylinder 48, and the top end of each limit connecting plate 49 is fixedly connected to the outer end of the rectangular slide 42 on the same side; under the driving action of the pair of electric telescopic cylinders 48, the telescopic rod of the electric telescopic cylinder 48 is shortened, and the rectangular slide 42, the elliptical connecting plate 43 and the U-shaped clamping plate 44 can be driven to translate inward along the rectangular ear seat 41 through the limit connecting plate 49;

[0076] Since the workpiece 5 is clamped centrally from the bottom of the four sides, the workpiece 5 can be subjected to uniform force, and the workpiece 5 can maintain an accurate center position in the X and Y planes, which can effectively limit the translation of the workpiece 5 on the horizontal plane and avoid dimensional deviation caused by the movement of the workpiece 5 during the processing.

[0077] Specifically, the working principle and operation method of the present invention are as follows:

[0078] Step 1: Place the workpiece 5 in the middle of the top surface of the fixed plate 4. Under the driving action of a pair of electric telescopic cylinders 48, the telescopic rods of the electric telescopic cylinders 48 are shortened, and the rectangular slide plates 42, the elliptical connecting plates 43 and the U-shaped clamping plates 44 on the front and rear sides are driven to translate inward along the rectangular ear seats 41 through the limit connecting plates 49.

[0079] Under the limiting action of the limiting pin 47 and the elliptical pin hole, the corresponding limiting swing arm 46 and the notched gear 45 are driven to rotate, and the notched gear 45 is engaged to drive the adjacent notched gear 45 and the limiting swing arm 46 to rotate, and simultaneously drives the rectangular slide plates 42, the elliptical connecting plate 43 and the U-shaped clamping plate 44 on the left and right sides to translate inward along the rectangular ear seat 41; the workpiece 5 is clamped and fixed in the center by the synchronous closing of the four U-shaped clamping plates 44;

[0080] Step 2: Under the driving action of a pair of first motors 12, the workpiece 5 is driven to translate in different directions:

[0081] When the workpiece 5 is driven to translate to the left, the pair of first motors 12 are controlled to rotate forward synchronously, driving the pair of fixed horizontal shafts 13 and the pair of hollow worms 14 to rotate forward synchronously, and the worm gear 26 remains stationary, driving the worm gear 26, the fixed shaft 25, the fixed block 2 and the pair of first slide plates 21 to translate to the left along the first slide rail 15, and synchronously driving the rectangular slide frame 23, the translation plate 3, the fixed plate 4 and the workpiece 5 to translate to the left;

[0082] When the workpiece 5 is driven to translate to the right, the pair of first motors 12 are controlled to rotate synchronously in the opposite direction, driving the pair of fixed horizontal shafts 13 and the pair of hollow worms 14 to rotate synchronously in the opposite direction, and the worm gear 26 remains stationary, driving the worm gear 26, the fixed shaft 25, the fixed block 2 and the pair of first slide plates 21 to translate to the right along the first slide rail 15, and synchronously driving the rectangular slide frame 23, the translation plate 3, the fixed plate 4 and the workpiece 5 to translate to the right;

[0083] When driving the workpiece 5 to translate forward, one first motor 12 is controlled to rotate forward, and the other first motor 12 is controlled to rotate reversely, and the pair of hollow worms 14 are driven to rotate forward and reversely through the fixed horizontal shaft 13. The pair of hollow worms 14 are engaged to drive the worm wheel 26, the fixed shaft 25, and the fixed gear 27 to rotate counterclockwise, and the fixed gear 27 is then engaged to drive the driven rack 28 and the rectangular slide frame 23 to slide forward along the pair of second slide rails 22, and synchronously drive the translation plate 3, the fixed plate 4 and the workpiece 5 to translate forward;

[0084] When driving the workpiece 5 to translate to the rear side, one first motor 12 is controlled to rotate in the reverse direction, and the other first motor 12 is controlled to rotate forwardly, and the pair of hollow worms 14 are driven to rotate in the reverse direction and forwardly through the fixed horizontal shaft 13. The pair of hollow worms 14 are engaged to drive the worm wheel 26, the fixed shaft 25, and the fixed gear 27 to rotate clockwise, and the fixed gear 27 is then engaged to drive the driven rack 28 and the rectangular slide frame 23 to slide backward along the pair of second slide rails 22, and synchronously drive the translation plate 3, the fixed plate 4 and the workpiece 5 to translate to the rear side;

[0085] Step three, under the driving action of a pair of second motors 35, the motor shaft of the second motor 35 drives the driving gear 36 to rotate, and the driving gear 36 then engages to drive the outer gear ring 33 and the fixed swivel 32 to rotate along the annular rail 31, and the outer gear ring 33 then engages to drive the linkage gear 34 and the linkage shaft to rotate, and the fixed swivel 32 synchronously drives the fixed plate 4 and the workpiece 5 to rotate to a suitable processing angle, and the surface of the workpiece 5 is processed by the tool on the bed 1.

[0086] The present invention can reasonably arrange the translation path of the workpiece 5 according to the processing technology requirements, so that the tool can move in a more efficient path during the processing, which can reduce the tool travel time and increase the proportion of cutting time in the entire processing cycle, thereby improving the overall processing efficiency.

[0087] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CNC horizontal boring and milling machine, characterized in that: The machine comprises a bed (1), wherein a pair of parallel fixed transverse shafts (13) are provided on the front and rear sides of the top surface of the bed (1), each of the fixed transverse shafts (13) is sleeved with a concentrically fixed hollow worm (14), and each of the hollow worm (14) is provided with a parallel first slide rail (15) above; A suspended fixed block (2) is provided between the pair of first slide rails (15); a pair of first slide plates (21) are fixedly provided on the front and rear side walls of the fixed block (2); each of the first slide plates (21) is slidably engaged in the corresponding first slide rail (15); a pair of second slide rails (22) are fixedly provided on the left and right sides of the pair of first slide rails (21); a rectangular slide frame (23) is slidably engaged between the pair of second slide rails (22); a suspended translation plate (3) is provided above the rectangular slide frame (23); A circular through hole is provided in the middle of the top surface of the translation plate (3); an annular rail (31) is fixedly provided on the top surface of the translation plate (3); a fixed swivel (32) is rotatably engaged inside the annular rail (31); and a fixed plate (4) is fixedly provided on the top surface of the fixed swivel (32); A workpiece (5) is placed in the middle of the top surface of the fixing plate (4), and rectangular ear seats (41) are fixed in the middle of the four side edges of the top surface of the fixing plate (4), and a rectangular slide plate (42) is slidably inserted on the top of each rectangular ear seat (41), and a vertically distributed elliptical connecting plate (43) is fixed to the inner end of each rectangular slide plate (42), and a U-shaped clamping plate (44) is fixed to the middle section of each elliptical connecting plate (43), and each U-shaped clamping plate (44) is against the workpiece (5); Both ends of the bottom surface of each of the first slide rails (15) are fixedly provided with fixed ear seats (11), the bottom end of each of the fixed ear seats (11) is fixedly connected to the top surface of the bed (1), and both ends of each of the fixed transverse shafts (13) are rotatably inserted into the corresponding fixed ear seats (11); A pair of staggered first U-shaped pallets are fixedly provided on both sides of the top surface of the bed (1), a first motor (12) with an output end facing inward is installed in the opening of each of the first U-shaped pallets, and the motor shaft end of each of the first motors (12) is coaxially connected to an adjacent fixed horizontal shaft (13); Each of the first slide rails (15) is provided with an elliptical long pin hole, each of the first slide plates (21) is fixedly provided with an elliptical long slider, and each of the elliptical long sliders is slidably engaged in the corresponding elliptical long pin hole; Each of the second slide rails (22) is provided with an elliptical short pin hole, and a pair of elliptical short sliding blocks are fixedly provided on the left and right side walls of the rectangular slide frame (23), and each of the elliptical short sliding blocks is slidably engaged in the corresponding elliptical short pin hole; a pair of L-shaped connecting plates (24) are fixedly provided on the front and rear sides of the top surface of the rectangular slide frame (23), and the top surface of each of the L-shaped connecting plates (24) is fixedly connected to the bottom surface of the translation plate (3); A driven rack (28) is fixedly arranged in the rectangular sliding frame (23); a fixed shaft (25) is rotatably inserted in the middle of the fixed block (2); a coaxially fixed worm wheel (26) is sleeved on the bottom end of the fixed shaft (25); the worm wheel (26) is meshingly connected with a pair of hollow worms (14); a coaxially fixed fixed gear (27) is sleeved on the top end of the fixed shaft (25); the fixed gear (27) is meshingly connected with the driven rack (28); A concentrically fixed outer gear ring (33) is sleeved on the middle of the outer side surface of the fixed rotating ring (32); linkage shafts are rotatably inserted at the four corners of the top surface of the translation plate (3); a concentrically fixed linkage gear (34) is sleeved on the top end of each linkage shaft; each linkage gear (34) is meshedly connected to the outer gear ring (33); A pair of U-shaped notches are provided on the left and right sides of the translation plate (3), a second U-shaped cardboard is fixedly provided inside each of the U-shaped notches, a second motor (35) with an output end facing upward is installed in the opening of each of the second U-shaped cardboards, a concentrically fixed driving gear (36) is sleeved on the motor shaft end of each of the second motors (35), and each of the driving gears (36) is meshedly connected to the outer gear ring (33).

2. A CNC horizontal boring and milling machine according to claim 1, characterized in that: A pair of swing shafts are rotatably inserted at the four corners of the top surface of the fixed plate (4), and the top end of each swing shaft is sleeved with a concentrically fixed notched gear (45), and adjacent pairs of notched gears (45) are meshed and connected, and a limiting swing arm (46) is fixedly provided at the notch portion of each notched gear (45).

3. A CNC horizontal boring and milling machine according to claim 2, characterized in that: A limiting pin shaft (47) is fixedly provided at the outer end of each limiting swing arm (46), and an elliptical pin hole is provided at both ends of each elliptical connecting plate (43), and the top end of each limiting pin shaft (47) is slidably engaged in the corresponding elliptical pin hole.

4. A CNC horizontal boring and milling machine according to claim 3, characterized in that: A pair of symmetrically distributed rectangular rings are fixedly provided on the front and rear sides of the bottom of the fixed plate (4), and an electric telescopic cylinder (48) with its telescopic end facing outward is installed inside each of the rectangular rings. A limit connecting plate (49) is fixedly provided at the end of the telescopic rod of each electric telescopic cylinder (48), and the top end of each limit connecting plate (49) is fixedly connected to the outer end of the rectangular slide plate (42) on the same side.

5. The method for using a CNC horizontal boring and milling machine according to claim 4, characterized in that: The following steps are involved: Step 1: The workpiece (5) is placed in the middle of the top surface of the fixed plate (4), and under the driving action of a pair of electric telescopic cylinders (48), the telescopic rods of the electric telescopic cylinders (48) are shortened, and the rectangular slide plates (42), the elliptical connecting plates (43) and the U-shaped clamping plates (44) on the front and rear sides are driven to translate inward along the rectangular ear seats (41) through the limit connecting plates (49); Under the limiting action of the limiting pin shaft (47) and the elliptical pin hole, the corresponding limiting swing arm (46) and the notched gear (45) are driven to rotate, and the notched gear (45) is engaged to drive the adjacent notched gear (45) and the limiting swing arm (46) to rotate, and simultaneously drives the rectangular slide plates (42), the elliptical connecting plate (43) and the U-shaped clamping plate (44) on the left and right sides to translate inward along the rectangular ear seat (41); the workpiece (5) is clamped and fixed in the center by the synchronous closing of the four U-shaped clamping plates (44); Step 2: Under the driving action of a pair of first motors (12), the workpiece (5) is driven to translate in different directions: When the workpiece (5) is driven to translate to the left, a pair of first motors (12) are controlled to rotate synchronously in the positive direction, driving a pair of fixed transverse shafts (13) and a pair of hollow worms (14) to rotate synchronously in the positive direction, while the worm gear (26) remains stationary, driving the worm gear (26), the fixed shaft (25), the fixed block (2) and a pair of first slide plates (21) to translate to the left along the first slide rail (15), and synchronously driving the rectangular slide frame (23), the translation plate (3), the fixed plate (4) and the workpiece (5) to translate to the left; When the workpiece (5) is driven to translate to the right, a pair of first motors (12) are controlled to rotate synchronously in the opposite direction, driving a pair of fixed transverse shafts (13) and a pair of hollow worms (14) to rotate synchronously in the opposite direction, while the worm gear (26) remains stationary, driving the worm gear (26), the fixed shaft (25), the fixed block (2) and a pair of first slide plates (21) to translate to the right along the first slide rail (15), and synchronously driving the rectangular slide frame (23), the translation plate (3), the fixed plate (4) and the workpiece (5) to translate to the right; When driving the workpiece (5) to translate forward, one first motor (12) is controlled to rotate forward, and the other first motor (12) is controlled to rotate backward, and a pair of hollow worms (14) are driven to rotate forward and backward through the fixed horizontal shaft (13). The pair of hollow worms (14) are meshed to drive the worm wheel (26), the fixed shaft (25), and the fixed gear (27) to rotate counterclockwise, and the fixed gear (27) is then meshed to drive the driven rack (28) and the rectangular slide frame (23) to slide forward along a pair of second slide rails (22), thereby synchronously driving the translation plate (3), the fixed plate (4) and the workpiece (5) to translate forward; When driving the workpiece (5) to translate toward the rear side, one first motor (12) is controlled to rotate in the reverse direction, and the other first motor (12) is controlled to rotate in the forward direction, and a pair of hollow worms (14) are driven to rotate in the reverse direction and in the forward direction through the fixed transverse shaft (13). The pair of hollow worms (14) are meshed to drive the worm wheel (26), the fixed shaft (25), and the fixed gear (27) to rotate clockwise, and the fixed gear (27) is then meshed to drive the driven rack (28) and the rectangular slide frame (23) to slide backward along the pair of second slide rails (22), thereby synchronously driving the translation plate (3), the fixed plate (4) and the workpiece (5) to translate toward the rear side; Step 3: Under the driving action of a pair of second motors (35), the motor shaft of the second motor (35) drives the driving gear (36) to rotate, and the driving gear (36) is then engaged to drive the outer gear ring (33) and the fixed rotating ring (32) to rotate along the annular rail (31), and the outer gear ring (33) is then engaged to drive the linkage gear (34) and the linkage shaft to rotate, and the fixed rotating ring (32) synchronously drives the fixed plate (4) and the workpiece (5) to rotate to a suitable processing angle, and the surface of the workpiece (5) is processed by the tool on the bed (1).

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