Numerical control double-column horizontal band saw machine

Abstract

The present application relates to sawing machine cutting equipment technical field, the present application discloses a kind of numerical control double-column horizontal band sawing machine, including main body structure, a pair of force structure and band saw main body;A pair of the force structure is symmetrically arranged on main body structure, several mounting holes are equidistantly provided in the middle of the band saw main body, the band saw main body can be detachably arranged between force structure, the present application is strong in cutting adaptability, efficiency and safety double promotion, can be compatible with the cutting needs of different thickness workpieces and support multi-angle cutting;It can also realize the movement logic of "tooth movement force contact workpiece, reverse tooth lifting band saw main body", avoid band saw in non-cutting stage sustained stress, effectively prevent band saw from breaking due to long-term overload or reverse stress, prolong the service life of band saw main body, the overall reciprocating motion reduces the rigid friction between components, reduces overall movement wear, prolongs the maintenance cycle of force structure, also can reduce band saw waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sawing machine cutting equipment, in particular to a numerical control double-column horizontal band sawing machine. BACKGROUND

[0002] In modern manufacturing, as the core equipment for cutting metal materials, band sawing machines are widely used in mechanical manufacturing, automobile parts processing, die manufacturing, steel structure processing and other fields. The cutting efficiency, precision and stability of the band sawing machine directly affect the processing quality and production efficiency of the subsequent process. Among them, the numerical control double-column horizontal band sawing machine is suitable for cutting irregular or large cross-section workpieces such as bars, pipes and plates.

[0003] However, the existing band sawing machine has insufficient band saw cutting angle adjustment capability and poor adaptability. It often continuously applies force to the cutting surface of the workpiece to maintain the horizontal plane, which not only slows down the cutting speed, but also cannot be adjusted according to the different workpieces. If the cutting surface is adjusted, it can only rely on turning the workpiece, which is relatively laborious. The utilization rate of the existing equipment is low, and only one part is used for a long time, resulting in a certain length of unused part in the entire band sawing part, thereby causing waste.

[0004] At the same time, the existing reciprocating mechanism of the equipment has unstable power transmission of the force application structure, and the band saw has poor synchronization in reciprocating motion. Its movement often adopts a transmission mode of "motor and crank connecting rod", which has two defects. First, there is no effective speed changing and buffering mechanism, and the motor power is directly transmitted to the saw blade. When the cutting load suddenly increases (such as cutting high-hardness metal), it is easy to cause motor overload and damage, and the impact in the transmission process will cause the saw blade to vibrate, affecting the precision of the cutting surface. Second, the force application of the crank connecting rod mechanism is unidirectional, which causes the band saw to be easily twisted and bent during continuous contact in the reciprocating process, not only accelerating the wear of the saw blade, but also possibly causing the safety hazard of saw blade fracture. SUMMARY

[0005] In view of the defects of the prior art, a numerical control double-column horizontal band sawing machine is provided, which solves the problems of unstable cutting, low cutting efficiency and waste of band saw of the existing equipment.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a numerical control double-column horizontal band sawing machine, comprising a main body structure, a pair of force application structures and a band saw body; the pair of force application structures are symmetrically arranged on the main body structure, a plurality of mounting holes are equidistantly arranged in the middle of the band saw body, and the band saw body is detachably arranged between the force application structures; the main body structure is used for bearing the workpiece positioning and driving the band saw body to ascend and descend, and the force application structure is used for fixing the band saw body and can synchronously apply force to drive the saw blade to reciprocate.

[0007] Preferably, the main structure includes a machine tool body, a controller, a reflux valve, a filter screen, a pair of first electric slide rails, a pair of clamping arms, and a drive assembly; the machine tool body has a concave structure, and both ends of the machine tool body are hollow structures, a liquid storage chamber is provided at the bottom of the machine tool body, a reflux port communicating with the bottom is opened in the middle of the machine tool body, and an insertion port communicating with the liquid storage chamber is opened on the front side wall of the machine tool body, the controller is fixedly installed on the front side wall of the right end of the machine tool body, one end of the reflux valve is fixedly connected to the front side wall of the bottom of the machine tool body, and the reflux valve communicates with the liquid storage chamber, the filter screen is detachably inserted into the insertion port, and the filter screen is located below the reflux port, a pair of first electric slide rails are symmetrically embedded in the upper left side wall of the machine tool body, near the front end, a pair of clamping arms are symmetrically arranged on the first electric slide rails, and the drive assembly is fixedly installed in the middle of the machine tool body.

[0008] Preferably, the drive assembly includes a pair of first hydraulic cylinders, a pallet, a tilting seat, a pair of second hydraulic cylinders, a crossbeam, a second electric slide rail, and a pair of mounting brackets; the pair of first hydraulic cylinders are symmetrically arranged on the upper wall of the middle part of the machine tool body, and are located on the front and rear sides of the return port respectively; the two ends of the pallet are fixedly arranged on the telescopic ends of the first hydraulic cylinders; one end of the tilting seat is fixedly arranged on the upper wall of both ends of the pallet, and the two ends of the tilting seat can be moved to tilt back and forth; the pair of second hydraulic cylinders are symmetrically arranged on the other end of the tilting seat; the two ends of the crossbeam are fixedly arranged between the telescopic ends of the second hydraulic cylinders, and the crossbeam is located above the middle part of the machine tool body; the second electric slide rail is fixedly embedded in the left side wall of the middle part of the crossbeam; one of the mounting brackets is fixedly arranged on the left side wall of the rear end of the crossbeam; and the other mounting bracket is fixedly arranged on the second electric slide rail.

[0009] Preferably, the pair of mounting brackets correspond to each other on the same horizontal plane.

[0010] Preferably, the force-applying structure includes a mounting box, a gearbox, a base, a motor, a turntable, and a reciprocating unit; a rotating hole is provided in the middle of the left side wall of the mounting box, and a drive port is provided in the middle of the right side wall of the mounting box; the gearbox is fixedly installed in the middle of the lower inner wall of the mounting box, and the output shaft and input shaft of the gearbox are respectively opposite to the rotating hole and the drive port; the base is fixedly installed on the right side wall of the mounting box; the motor is fixedly installed in the middle of the right side wall of the base, and the motor drive end movably penetrates through the base; the motor drive end is connected to the input end of the gearbox; the turntable is fixedly installed on the output end of the gearbox, and the turntable is movably embedded in the rotating hole; the reciprocating unit is fixedly installed on the left side wall of the mounting box.

[0011] Preferably, the reciprocating unit comprises a reciprocating shaft, a reciprocating wheel, a first nut, a pair of limiting racks, a plurality of limiting rollers, a reciprocating frame, a mounting shaft and a second nut; one end of the reciprocating shaft is movably penetrated through the rotating disc and close to the outer side wall of the rotating disc, the reciprocating shaft is a convex rod body structure, and the outer side wall of the other end of the reciprocating shaft is provided with threads, the reciprocating wheel is a concave wheel structure, the reciprocating wheel is sleeved on the reciprocating shaft, the first nut is screwed on the other end of the reciprocating shaft, and the first nut fixes the reciprocating wheel, a pair of the limiting racks are respectively arranged on the left side wall of the mounting box, and the limiting racks are respectively close to the middle parts of the front end and the rear end and are symmetrical, the middle parts of the pair of limiting racks are provided with rectangular expansion openings, the plurality of limiting rollers are movably embedded in the expansion openings in the middle parts of the limiting racks, and the limiting rollers are respectively close to the upper end and the lower end of the expansion openings, the reciprocating frame is a cross-shaped structure, and the reciprocating frame is provided with a lifting groove in the middle part, the reciprocating frame is movably penetrated between the limiting rollers at the front end and the rear end, and the lifting groove in the middle part of the reciprocating frame is movably sleeved on the reciprocating wheel, one end of the mounting shaft is fixedly arranged on the front end of the reciprocating frame, and the other end of the mounting shaft is provided with threads, and the second nut is screwed on the other end of the mounting shaft.

[0012] Preferably, the band saw body is sleeved on the mounting shaft through the mounting holes at the two ends, is fixed through the second nut, and is located between the two force applying structures.

[0013] Preferably, the reciprocating frames in the pair of force applying structures move in the same direction.

[0014] Preferably, the reciprocating frame is driven by the rotating disc to rotate the reciprocating wheel, so that the reciprocating wheel is lifted and rotated in the lifting groove in the middle part of the reciprocating frame, and the reciprocating frame is moved forward and backward between the limiting rollers.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] 1. The concave structure design (including two end cavities, a bottom liquid storage cavity, a middle reflux opening, a front side insertion port and a detachable filter screen) relying on the machine tool body realizes double advantages: on the one hand, the concave structure provides a stable bearing and positioning basis for the workpiece, ensures that the workpiece is not easy to move during cutting, and guarantees cutting accuracy; on the other hand, the existing cooling mechanism can be seamlessly matched, the cooling liquid generated during cutting flows into the liquid storage cavity through the reflux opening, and is filtered by the filter screen to realize recycling, which not only saves cooling liquid resources and reduces material cost, but also reduces waste liquid pollution, avoids impurities blocking the equipment pipeline, and prolongs the service life of the cooling system and the whole machine.

[0017] 2. The design of the drive component directly solves the problems of cutting scenario adaptation and band saw protection. Specifically, it adapts to workpieces of different thicknesses. The second hydraulic cylinder drives the crossbeam to rise and fall, which can flexibly adjust the contact height between the band saw body and the workpiece to meet the cutting needs of workpieces of different thicknesses. With the forward and backward flipping function of the flipping seat and the extension and retraction adjustment of the second hydraulic cylinder, the crossbeam and the band saw body can be tilted to achieve multi-angle cutting (such as bevel cutting), eliminating the need for repeated manual adjustment of the workpiece position and greatly improving cutting efficiency. Through the reciprocating extension and retraction of the first hydraulic cylinder, the motion logic of "forward tooth movement to apply force to contact the workpiece and reverse tooth lifting the band saw body" is realized, which avoids the band saw being continuously stressed during non-cutting stages, effectively preventing the band saw from breaking due to long-term overload or reverse force, and extending the service life of the band saw body.

[0018] 3. The design of the force-applying structure reduces wear. The turntable drives the reciprocating wheel to rotate eccentrically, and the reciprocating wheel's lifting and lowering movement in the middle of the cross-shaped reciprocating frame drives the reciprocating frame's movement. Compared with traditional crank-connecting rod transmission, this reduces rigid friction between components, lowers overall motion wear, and extends the maintenance cycle of the force-applying structure. A pair of symmetrically arranged force-applying structures achieve synchronous force application in the same direction ("push in one direction, pull in the other"), avoiding band saw offset or vibration caused by unilateral force application and improving the stability of the band saw's main body movement. At the same time, the coordinated force application enhances cutting power, making it especially suitable for cutting high-hardness or large-section workpieces and ensuring a smooth cutting process.

[0019] 4. The adjustable spacing of the force-applying structure achieves the dual benefits of "workpiece adaptation" and "band saw saving". The spacing of a pair of mounting brackets can be adjusted by the second electric slide rail, thereby adjusting the spacing of the force-applying structure to meet the processing needs of workpieces of different widths. The adjustable spacing allows for flexible shortening of the force-applying length of the band saw body according to the workpiece width (avoiding uneven force caused by excessive band saw length). This prevents the band saw from easily breaking due to excessive length and allows for full utilization of different areas of the band saw body by adjusting the contact points between the band saw and the workpiece. This avoids the need to replace the entire band saw after local wear, significantly improving the band saw utilization rate and reducing material waste and replacement costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of the present invention broken down;

[0022] Figure 3 This is a diagram illustrating the driving component of the present invention;

[0023] Figure 4 This is a schematic diagram of the main structure assembly of the present invention;

[0024] Figure 5The disassembled and enlarged schematic view of the force applying structure of the present application;

[0025] Figure 6 The assembled and enlarged schematic view of the force applying structure of the present application;

[0026] Figure 7 The assembled and enlarged schematic view of the force applying structure and the band saw body of the present application;

[0027] Figure 8 The enlarged schematic view of the partial structure at A in Figure 3

[0028] In the figure: 1, main structure, 11, machine tool main body, 12, controller, 13, backflow valve, 14, filter screen, 15, first electric sliding rail, 16, clamping arm, 17, driving assembly, 170, first hydraulic cylinder, 171, supporting plate, 172, overturning seat, 173, second hydraulic cylinder, 174, cross frame, 175, second electric sliding rail, 176, mounting rack, 2, force applying structure, 21, mounting box, 22, gear box, 23, base, 24, motor, 25, rotating disc, 26, reciprocating unit, 261, reciprocating shaft, 262, reciprocating wheel, 263, first nut, 264, limiting rack, 265, limiting roller, 266, reciprocating rack, 267, mounting shaft, 268, second nut, 3, band saw body, 41, liquid storage cavity, 42, spigot, 43, backflow port, 5, rotating hole, 6, driving port, 7, telescopic port, 8, lifting port, 9, mounting hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings of the embodiments of the present application to further specifically describe the present application. Figures 1-8 Further detailed description:

[0030] The present application provides a technical solution: a numerical control double-column horizontal band saw machine, comprising a main structure 1, a pair of force applying structures 2 and a band saw body 3; the pair of force applying structures 2 are symmetrically arranged on the main structure 1, the band saw body 3 is provided with a plurality of mounting holes 9 equidistantly in the middle part, and the band saw body 3 is detachably arranged between the force applying structures 2; the main structure 1 is used for bearing workpiece positioning and driving the band saw body 3 to lift, the force applying structure 2 is used for fixing the band saw body 3, and can synchronously apply force to drive the saw blade to reciprocate.

[0031] ​As a preferred scheme, further, the main body structure 1 comprises a machine tool main body 11, a controller 12, a backflow valve 13, a filter screen 14, a pair of first electric sliding rails 15, a pair of clamping arms 16 and a driving assembly 17; the machine tool main body 11 is of a concave structure, both ends of the machine tool main body 11 are of a hollow structure, the bottom of the machine tool main body 11 is provided with a liquid storage cavity 41, the middle part of the machine tool main body 11 is provided with a backflow opening 43 communicated with the bottom, and the front side wall of the machine tool main body 11 is provided with a socket 42 communicated with the liquid storage cavity 41, the controller 12 is fixedly arranged on the front side wall of the right end of the machine tool main body 11, one end of the backflow valve 13 is fixedly connected to the front side wall of the bottom of the machine tool main body 11, and the backflow valve 13 is communicated with the liquid storage cavity 41, the filter screen 14 is detachably inserted into the socket 42, and the filter screen 14 is located below the backflow opening 43, the pair of first electric sliding rails 15 are respectively and symmetrically embedded in the upper wall of the left end of the machine tool main body 11 and close to the front end part, the pair of clamping arms 16 are respectively and symmetrically arranged on the first electric sliding rails 15, and the driving assembly 17 is fixedly arranged in the middle part of the machine tool main body 11; through the structure of the machine tool main body 11, the lifting adjustment of the driving assembly 17 and the setting of the cooling liquid recovery in the machining are facilitated, the backflow valve 13 can discharge the cooling liquid, the first electric sliding rails 15 drive the relative movement of the clamping arms 16 for clamping, and the position of the workpiece relative to the band saw main body 3 can be adjusted.

[0032] More specifically, the concave structure of the machine tool main body 11 not only provides space for the lifting of the driving assembly 17, but also realizes efficient recovery of the cooling liquid and impurity filtration through cooperation of the liquid storage cavity 41, the backflow opening 43 and the filter screen 14, reduces waste of the cooling liquid and pollution of the equipment, and the synergistic effect of the pair of first electric sliding rails 15 and the clamping arms 16 can realize accurate clamping of workpieces of different sizes and flexible adjustment of the relative position of the workpiece and the band saw main body 3, and adapt to different cutting requirements.

[0033] As a preferred solution, the driving assembly 17 further includes a pair of first hydraulic cylinders 170, a bracket 171, a turnover seat 172, a pair of second hydraulic cylinders 173, a cross frame 174, a second electric slide rail 175, and a pair of mounting frames 176; the pair of first hydraulic cylinders 170 are symmetrically arranged on the upper wall of the middle part of the machine tool body 11 and are respectively located on the front and rear sides of the return port 43, the bracket 171 is fixedly arranged on the extension end of the first hydraulic cylinder 170, one end of the turnover seat 172 is fixedly arranged on the upper wall of the bracket 171, and the two ends of the turnover seat 172 can be actively turned back and forth, the pair of second hydraulic cylinders 173 are symmetrically arranged on the other end of the turnover seat 172, the cross frame 174 is fixedly arranged between the extension ends of the second hydraulic cylinders 173, and the cross frame 174 is located above the middle part of the machine tool body 11, the second electric slide rail 175 is fixedly embedded in the left side wall of the middle part of the cross frame 174, one of the mounting frames 176 is fixedly arranged on the left side wall of the rear end of the cross frame 174, and the other mounting frame 176 is fixedly arranged on the second electric slide rail 175, and the pair of mounting frames 176 correspond to each other in the same horizontal plane; the first hydraulic cylinder 170 assists in driving the lifting of the band saw body 3, the teeth in the reciprocating movement of the band saw can contact the workpiece in order, the second hydraulic cylinder 173 and the turnover seat 172 are actively designed to adjust the inclination of the cross frame 174, thereby driving the inclined contact of the band saw body 3, realizing the angle change of the reciprocating movement of the band saw body 3, improving the cutting efficiency, and adjusting the distance between the two oppositely arranged force applying structures 2 through the second electric slide rail 175, thereby adjusting the contact length of the band saw body 3 according to the size of the workpiece, and adjusting the clamping limiting position of the workpiece to change the contact position of the band saw body 3, realize the effective utilization of the whole, and prevent the same part from being used for a long time due to wear and tear, thereby reducing the cutting efficiency.

[0034] More specifically, the driving assembly 17 can precisely adjust the height of the band saw body 3 through the synchronous extension and retraction of the pair of first hydraulic cylinders 170, ensure that the saw blade teeth contact the workpiece in order, avoid the breakage of the band saw caused by reverse tooth stress, and prolong the service life of the band saw; relying on the cooperation of the turnover seat 172 and the second hydraulic cylinder 173, the band saw body 3 can be adjusted within a certain range, which can adapt to the cutting demand of the inclined surface, reduce the cutting resistance, and improve the cutting efficiency; by adjusting the distance between the mounting frames 176 through the second electric slide rail 175, different widths of workpieces can be adapted, the contact position of the band saw can be changed, local overwear can be avoided, and the replacement frequency and material cost of the band saw can be reduced.

[0035] As a preferred solution, further, the force applying structure 2 comprises a mounting box 21, a gear box 22, a base 23, a motor 24, a rotating disc 25 and a reciprocating unit 26; the mounting box 21 is a rectangular box without front and back side walls and an upper wall, and a rotating hole 5 is arranged in the middle of the left side wall of the mounting box 21, and a driving opening 6 is arranged in the middle of the right side wall of the mounting box 21, the gear box 22 is fixedly arranged in the middle of the lower wall of the mounting box 21, and the output shaft and the input shaft of the gear box 22 are opposite to the rotating hole 5 and the driving opening 6 respectively, the base 23 is fixedly arranged on the right side wall of the mounting box 21, the motor 24 is fixedly arranged in the middle of the right side wall of the base 23, and the driving end of the motor 24 is movably penetrated through the base 23, the driving end of the motor 24 is connected with the input end of the gear box 22, the rotating disc 25 is fixedly arranged on the output end of the gear box 22, and the rotating disc 25 is movably embedded in the rotating hole 5, and the reciprocating unit 26 is fixedly arranged on the left side wall of the mounting box 21; the motor 24 on the base 23 is started to drive the gear box 22 to transmit power, the gear box 22 is used to transmit force, which can prevent the motor 24 from being damaged by direct force, and can also realize the effect of speed change, the rotating disc 25 is driven by the gear box 22 to rotate, and the rotating power is transmitted to the reciprocating unit 26 to form linear reciprocating motion.

[0036] More specifically, the gear box 22 realizes power deceleration and torque increase and buffering, which can avoid damage of the motor 24 caused by direct bearing of cutting resistance, change the cutting speed of the band saw main body 3, adapt to the cutting demand of high-hardness workpieces, and the mounting box 21 adopts an open structure without front and back side walls and an upper wall, which is convenient for installation and maintenance of the gear box 22 and the motor 24; the connection of the rotating disc 25 and the output shaft of the gear box 22 and the connection of the motor 24 and the input shaft of the gear box 22 are convenient for disassembly and replacement of components.

[0037] Further preferably, the reciprocating unit 26 comprises a reciprocating shaft 261, a reciprocating wheel 262, a first nut 263, a pair of limiting racks 264, a plurality of limiting rollers 265, a reciprocating rack 266, a mounting shaft 267 and a second nut 268; one end of the reciprocating shaft 261 is movably penetrated through the rotating disc 25 and close to the outer side wall of the rotating disc 25, the reciprocating shaft 261 is a convex rod body structure, and the other end of the reciprocating shaft 261 is provided with a thread, the reciprocating wheel 262 is a concave wheel structure, the reciprocating wheel 262 is sleeved on the reciprocating shaft 261, the first nut 263 is screwed on the other end of the reciprocating shaft 261, and the first nut 263 fixes the reciprocating wheel 262, the pair of limiting racks 264 are respectively arranged on the left side wall of the mounting box 21, and the limiting racks 264 are respectively close to the opposite symmetrical middle parts of the front and rear ends, a rectangular expansion opening 7 is arranged in the middle part of each limiting rack 264, the plurality of limiting rollers 265 are movably embedded in the expansion openings 7 in the middle parts of the limiting racks 264, and the limiting rollers 265 are respectively close to the corresponding upper and lower ends of the expansion openings 7, the reciprocating rack 266 is a cross-shaped structure, and a lifting groove is arranged in the middle part of the reciprocating rack 266, the reciprocating rack 266 is movably penetrated between the limiting rollers 265 at the front and rear ends, and the lifting groove in the middle part of the reciprocating rack 266 is movably sleeved on the reciprocating wheel 262, one end of the mounting shaft 267 is fixedly arranged on the front end of the reciprocating rack 266, and the other end of the mounting shaft 267 is provided with a thread, and the second nut 268 is screwed on the other end of the mounting shaft 267; the circumferential rotation of the rotating disc 25 drives the reciprocating shaft 261 to rotate, so that the reciprocating wheel 262 is lifted and rotated in the lifting groove of the reciprocating rack 266, and then the reciprocating rack 266 is supported by the limiting rollers 265 in the limiting racks 264 to move reciprocally in a straight line, so that the band saw body 3 fixed on the mounting shaft 267 by the second nut 268 is driven to move reciprocally, the reciprocating racks 266 in the pair of force applying structures 2 move in the same direction, the reciprocating rack 266 drives the reciprocating wheel 262 to rotate through the rotating disc 25, and then the reciprocating wheel 262 is lifted and rotated in the lifting groove in the middle part of the reciprocating rack 266, so that the reciprocating rack 266 moves forward and backward between the limiting rollers 265.

[0038] More specifically, the rolling support design of the reciprocating wheel 262 and the limiting roller 265 converts the traditional “sliding friction” dominated movement into “rolling friction” dominated movement, greatly reduces the movement resistance, reduces the wear of the parts, and prolongs the service life of the reciprocating unit 26; the band saw body 3 is detachably fixed through the mounting shaft 267 and the second nut 268, and only needs to unscrew the second nut 268 when replacing the band saw, so the operation time is shortened; the wearing parts such as the reciprocating wheel 262 and the limiting roller 265 are designed by modularization, and can be individually disassembled and replaced without disassembling the reciprocating unit 26 as a whole; the composite movement design of the reciprocating wheel 262 and the lifting groove improves the conversion efficiency of the rotating power of the rotating disc 25, and compared with the traditional crank connecting rod mechanism, the cutting force of the band saw body 3 is improved under the same power of the motor 24.

[0039] As a preferred solution, further, the band saw body 3 is sleeved on the mounting shaft 267 through the mounting holes 9 at both ends, and is fixed through the second nut 268, and the band saw body 3 is located between the two force applying structures 2.

[0040] Working principle:

[0041] S1. When the device is used, the machine tool body 11 in the main body structure 1 is placed, and the existing cooling mechanism on the cross frame 174 in the device can be arranged, the cooling liquid is sprayed opposite to the band saw body 3, and at the same time, the pump body in the cooling mechanism can be connected with the backflow valve 13, the cooling liquid treated by the filter screen 14 in the insertion port 42 is extracted, and the circulation is realized; due to the concave design of the machine tool body 11, the cooling liquid can enter from the backflow port 43, flow into the liquid storage cavity 41 through the filter screen 14;

[0042] S2. The workpiece enters through the right end of the machine tool body 11, passes below the band saw body 3, and then the first electric sliding rail 15 is started by the controller 12, the clamping arm 16 is driven to move relatively to clamp, and according to the position of the workpiece part and relative to the band saw body 3, the position of the clamping arm 16 can be adjusted, and then the fixed position of the workpiece is changed;

[0043] S3. Then the second hydraulic cylinder 173 in the driving assembly 17 is started to shrink synchronously, so as to drive the cross frame 174 to descend, realize the descent of the force applying structure 2 on the mounting frame 176, and promote the band saw body 3 to descend and adhere to the workpiece; then the two force applying structures 2 are started, the band saw body 3 is driven to reciprocate to realize cutting;

[0044] S4. The force applying structure 2 is started through the motor 24 on the base 23, the driving end of the motor 24 is connected with the gear box 22 through the driving port 6, the gear box 22 is driven to rotate, the rotating disc 25 is rotated in the rotating hole 5 of the mounting box 21, and the reciprocating shaft 261 in the reciprocating unit 26 is rotated circumferentially;

[0045] S5. The reciprocating wheel 262 fixed on the reciprocating shaft 261 through the first nut 263 is lifted and lowered in the middle of the cross-shaped reciprocating frame 266 and the lifting port 8 in the circumferential rotation of the rotating disc 25, and the reciprocating wheel 262 is rotated through the reciprocating shaft 261, so as to drive the reciprocating frame 266 to slide reciprocally through the limiting of the limiting frame 264, the stress of the limiting roller 265 in the telescopic port 7, realize the conversion of the rotary force into the linear reciprocating motion;

[0046] S6. Further, through the symmetrically arranged force structure 2, the band saw body 3 fixed on the mounting shaft 267 through the second nut 268 is driven to reciprocate to realize cutting; during cutting, the first hydraulic cylinder 170 can also be activated to reciprocate, and the second hydraulic cylinder 173 is driven to rise and fall through the bracket 171, which is matched with the reciprocating motion of the band saw body 3 to realize the cutting of the band saw body 3 in the descending direction of the tooth and the disengagement of the band saw body 3 from the workpiece in the ascending direction of the tooth;

[0047] S7. One of the second hydraulic cylinders 173 can also be activated to realize the inclination of the cross frame 174 through the active connection of the turnover seat 172 at the bottom of the second hydraulic cylinder 173 and the telescopic end with the cross frame 174, so as to change the inclination of the band saw body 3 and realize the change of the contact angle between the band saw body 3 and the workpiece; the band saw body 3 can realize the contact with the edge of the cutting part during processing to improve the cutting efficiency.

[0048] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and other modifications or substitutions of the technical solutions of the present application made by those skilled in the art should be covered in the scope of the claims of the present application as long as they do not deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A CNC double-column horizontal band saw machine, characterized by, Including main body structure (1), a pair of force structure (2) and band saw body (3), a pair of the force structure (2) symmetry is arranged on main body structure (1), the band saw body (3) middle part equidistance is provided with several mounting holes (9), the band saw body (3) can be detached and placed between force structure (2); The main body structure (1) is used for carrying workpiece positioning and driving band saw body (3) lifting, the force structure (2) is used for fixing band saw body (3), and can synchronous force driving saw blade reciprocating movement; The force structure (2) includes mounting box (21), gear box (22), base (23), motor (24), turntable (25) and reciprocating unit (26); The left side wall middle part of mounting box (21) is provided with rotating hole (5), the right side wall middle part of mounting box (21) is provided with drive port (6), gear box (22) is fixedly arranged in the lower wall middle part in mounting box (21), and the output shaft and input shaft of gear box (22) are opposite to rotating hole (5) and drive port (6) respectively, base (23) is fixedly arranged on the right side wall of mounting box (21), motor (24) is fixedly arranged on the right side wall middle part of base (23), and motor (24) drive end is movably penetrated through base (23), the drive end of motor (24) is connected with the input end of gear box (22), turntable (25) is fixedly arranged on the output end of gear box (22), and turntable (25) is movably embedded in rotating hole (5), reciprocating unit (26) is fixedly arranged on the left side wall of mounting box (21); The reciprocating unit (26) includes reciprocating shaft (261), reciprocating wheel (262), first nut (263), a pair of limit frame (264), several limit roller (265), reciprocating frame (266), mounting shaft (267) and second nut (268); The reciprocating shaft (261) is movably penetrated into the rotating disc (25) and is close to the outer side wall of the rotating disc (25), the reciprocating shaft (261) is a convex rod body structure, and the outer side wall of the other end of the reciprocating shaft (261) is provided with a thread, the reciprocating wheel (262) is a concave wheel structure, the reciprocating wheel (262) is sleeved on the reciprocating shaft (261), the first nut (263) is screwed on the other end of the reciprocating shaft (261), and the first nut (263) fixes the reciprocating wheel (262), a pair of the limiting frames (264) are respectively arranged on the left side wall of the mounting box (21), and the limiting frames (264) are respectively close to the middle parts of the front end and the rear end and are symmetrical, a pair of the limiting frames (264) are respectively provided with rectangular expansion openings (7) in the middle parts, a plurality of the limiting rollers (265) are movably embedded in the expansion openings (7) in the middle parts of the limiting frames (264), and the limiting rollers (265) are respectively close to the upper end and the lower end of the expansion openings (7) and are corresponding, the reciprocating frame (266) is a cross structure, and the reciprocating frame (266) is provided with a lifting groove in the middle part, the reciprocating frame (266) is movably penetrated between the limiting rollers (265) from front to back, and the lifting groove in the middle part of the reciprocating frame (266) is movably sleeved on the reciprocating wheel (262), the mounting shaft (267) is fixedly arranged at the front end of the reciprocating frame (266), and the other end of the mounting shaft (267) is provided with a thread, and the second nut (268) is screwed on the other end of the mounting shaft (267).

2. The CNC double-column horizontal band saw machine according to claim 1, characterized in that, The main body structure (1) comprises a machine tool main body (11), a controller (12), a backflow valve (13), a filter screen (14), a pair of first electric sliding rails (15), a pair of clamping arms (16) and a driving assembly (17); The machine tool main body (11) is a concave structure, and the two ends of the machine tool main body (11) are a cavity structure, and the bottom of the machine tool main body (11) is provided with an accumulator cavity (41), and the middle part of the machine tool main body (11) is provided with a backflow opening (43) communicated with the bottom, and the front side wall of the machine tool main body (11) is provided with a socket (42) communicated with the accumulator cavity (41), the controller (12) is fixedly arranged on the right end of the front side wall of the machine tool main body (11), one end of the backflow valve (13) is fixedly connected to the bottom of the front side wall of the machine tool main body (11), and the backflow valve (13) is communicated with the accumulator cavity (41), the filter screen (14) is detachably inserted into the socket (42), and the filter screen (14) is located below the backflow opening (43), a pair of the first electric sliding rails (15) are respectively and symmetrically embedded in the upper wall of the left end of the machine tool main body (11) and are close to the front end part, a pair of the clamping arms (16) are respectively and symmetrically arranged on the first electric sliding rails (15), and the driving assembly (17) is fixedly arranged in the middle part of the machine tool main body (11).

3. The CNC double-column horizontal band saw machine according to claim 2, characterized in that, The driving assembly (17) comprises a pair of first hydraulic cylinders (170), a supporting plate (171), a turnover seat (172), a pair of second hydraulic cylinders (173), a cross frame (174), a second electric sliding rail (175) and a pair of mounting frames (176). The driving assembly (17) comprises a pair of first hydraulic cylinders (170), a supporting plate (171), a turnover seat (172), a pair of second hydraulic cylinders (173), a cross frame (174), a second electric sliding rail (175) and a pair of mounting frames (176). A pair of said first hydraulic cylinders (170) are respectively arranged symmetrically on the upper wall of the middle part of the machine tool body (11), and are respectively located on the front and rear sides of the backflow port (43). The two ends of the supporting plate (171) are fixedly arranged on the telescopic ends of the first hydraulic cylinders (170). One end of the turnover seat (172) is fixedly arranged on the upper wall of the two ends of the supporting plate (171), and the two ends of the turnover seat (172) can be moved forward and backward. A pair of said second hydraulic cylinders (173) are respectively arranged symmetrically on the other end of the turnover seat (172). The two ends of the cross frame (174) are respectively fixedly arranged between the telescopic ends of the second hydraulic cylinders (173), and the cross frame (174) is located above the middle part of the machine tool body (11). The second electric sliding rail (175) is fixedly embedded in the left side wall of the middle part of the cross frame (174). One of said mounting brackets (176) is fixedly arranged on the left side wall of the rear end of the cross frame (174). The other of said mounting brackets (176) is fixedly arranged on the second electric sliding rail (175).

4. The CNC double-column horizontal band saw machine according to claim 3, characterized in that, A pair of said mounting brackets (176) correspond to the same horizontal plane.

5. The CNC double-column horizontal band saw machine according to claim 4, characterized in that, The two ends of said band saw body (3) are respectively sleeved on the mounting shaft (267) through the mounting hole (9), and are fixed by the second nut (268), and the band saw body (3) is located between the two force applying structures (2).

6. The CNC double-column horizontal band saw machine according to claim 5, characterized in that, The reciprocating frames (266) in a pair of said force applying structures (2) have the same movement direction.

7. The CNC double-column horizontal band saw machine according to claim 6, characterized in that, Said reciprocating frame (266) drives the reciprocating wheel (262) to rotate through the turntable (25), and then the reciprocating wheel (262) is lifted and rotated in the lifting groove in the middle part of the reciprocating frame (266), driving the reciprocating frame (266) to move back and forth between the limiting rollers (265).

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