Adjustable hold-down device for a vertical band saw

Abstract

The present application relates to vertical band sawing machine adjusting and pressing technical field, specifically discloses a kind of adjustable pressing device of vertical band sawing machine, comprising: vertical band sawing machine, adjusting device and fixing device, vertical band sawing machine can be sawn to plate and casting;Adjusting device is set to the right end center of the workstation moving platform top surface of vertical band sawing machine;Fixing device is set to the bottom surface of the rotating end of adjusting device, and the fixing device can automatically adjust and fix plate, the fixing device can be mutually matched with adjusting device to automatically adjust and fix irregular castings and regular castings and adjust the flatness of cutting edge;The present application effectively solves the problem of poor versatility and low fixing accuracy of traditional vertical band sawing machine, greatly improves the versatility, accuracy and fixing quality of the pressing device of vertical band sawing machine.

Description

Technical Field

[0001] This invention relates to the field of adjustable clamping technology for vertical band saws, specifically to an adjustable clamping device for vertical band saws. Background Technology

[0002] In the field of machining, the performance of the workpiece fixing device of a vertical band saw directly affects the sawing accuracy, efficiency, and yield. However, current fixing technologies have many bottlenecks and are difficult to adapt to the processing of diverse workpieces.

[0003] 1. For regular-shaped castings, traditional fixing devices are mostly integrated drive gear transmissions of the same specifications. They cannot flexibly adjust the clamping distance and force according to the casting specifications, requiring manual replacement of special clamps. They also lack precise fine-tuning mechanisms, which can easily cause sawing deviation. Furthermore, the torque design is not optimized, resulting in either insufficient clamping force and displacement or excessive pressure and deformation of thick castings.

[0004] 2. For irregularly shaped castings, traditional rigid clamps cannot fit the irregular outer wall. Single-point and local fixation can easily lead to uneven force, shaking or damage. There is no pressure compensation mechanism, resulting in poor fixation stability. Furthermore, there is no effective tilt detection and leveling mechanism. Relying on manual adjustment has poor accuracy and often results in tilting of the sawn surface.

[0005] 3. In addition, traditional devices lack precision control: pressure control lacks real-time detection feedback, and preset pressure is difficult to adapt to workpieces of different materials and thicknesses; angle control lacks dedicated detection components, and the leveling mechanism is rudimentary and cannot make precise fine adjustments; the drive components have low precision, which easily accumulates errors and further affects quality. Summary of the Invention

[0006] The purpose of this invention is to provide an adjustable clamping device for a vertical band saw to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adjustable clamping device for a vertical band saw, comprising: a vertical band saw, an adjusting device, and a fixing device. The vertical band saw is capable of sawing plates and castings. The adjusting device is located at the center of the right end of the top surface of the moving platform of the vertical band saw. The fixing device is located on the bottom surface of the rotating end of the adjusting device. The fixing device is capable of automatically adjusting and fixing the plates. The fixing device can cooperate with the adjusting device to automatically adjust and fix irregularly shaped castings and regular-shaped castings, and adjust the flatness of the cut edges.

[0008] Preferably, to move the fixed regular and irregular shaped castings to the sawing position, the adjustment device includes: a support plate, a connecting rod, a first electric push rod, a vision sensor, a second electric push rod, a third electric push rod, a rectangular body, a chamber, a first drive assembly, an L-shaped rod, and a connecting plate. The support plate is located at the center of the right end of the top surface of the worktable moving platform of the vertical band saw; the connecting rod is located at the top end of the rear side of the outer wall of the support plate; the first electric push rod is located at the rear end of the left side of the outer wall of the vision sensor; the vision sensor is located at the pushing end of the first electric push rod; the second electric push rod... Two electric actuators are located at the top left side of the outer wall of the support plate; a third electric actuator is located at the pushing end of the second electric actuator, and the second and third electric actuators are electrically connected to the vision sensor; a rectangular body is located at the pushing end of the third electric actuator, and a cavity is formed inside the rectangular body; a first drive assembly is located inside the cavity; an L-shaped rod is embedded in the top front side of the outer wall of the rectangular body through a first bearing, and the top end of the L-shaped rod extends into the cavity and is connected and fixed to the output end of the first drive assembly; a connecting plate is located at the bottom end of the L-shaped rod.

[0009] Preferably, for leveling the irregularly shaped casting, the first drive assembly includes: a turbine, a worm gear, and a first brake motor. The turbine is mounted on the rear top of the inner wall of the cavity via a second bearing, and the front end of the turbine is connected and fixed to the top end of the L-shaped rod. The worm gear is mounted on the bottom end of the cavity via two third bearings, and the worm gear and the turbine gear mesh with each other. The first brake motor is located at the center of the bottom end on the right side of the outer wall of the rectangular body, and the output end of the first brake motor is connected and fixed to the right end of the worm gear. The first brake motor is electrically connected to a vision sensor.

[0010] Preferably, the first brake motor can drive the worm gear to rotate the turbine, thereby causing the L-shaped rod to rotate the connecting plate.

[0011] Preferably, for clamping and fixing regular-shaped castings, the fixing device includes: an H-shaped plate, a second driving assembly, L-shaped rods, a moving groove, a first pressure block, a first pressure sensor, a third driving assembly, a second pressure block, and a second pressure sensor. The H-shaped plate is disposed on the bottom surface of the connecting plate; there are two sets of second driving assemblies, symmetrically arranged on one side of the inner wall of the front and rear grooves of the H-shaped plate; there are two L-shaped rods, symmetrically arranged at one end of the two sets of second driving assemblies, and each of the two L-shaped rods has a moving groove that extends through the front and rear; there are two first pressure blocks, respectively... The first pressure sensor is located at the bottom end of the two L-shaped rods; two first pressure sensors are embedded in the center of the bottom end of the two first pressure blocks, and the two first pressure sensors are electrically connected to the third electric push rod; two third drive components are symmetrically arranged in the two moving slots; two second pressure blocks are located at the moving ends of the two sets of third drive components, and the two third drive components can drive the two second pressure blocks to move closer to each other and further away from each other; two second pressure sensors are embedded in the center of one side of the outer wall of the two second pressure blocks.

[0012] Preferably, the two second drive components are respectively capable of driving the two L-shaped rods to move closer to each other and further apart.

[0013] Preferably, in order to drive the two L-shaped rods for clamping and fixing, the second driving assembly includes: a first gear, a second brake motor, and a second gear. The first gear is disposed at one end of the inner wall of the groove at one end of the H-shaped plate via a fourth bearing; the second brake motor is disposed at one end of the fourth bearing, and the output end of the second brake motor is centrally connected and fixed to one end of the first gear; the second gear is disposed at the other end of the inner wall of the groove at one end of the H-shaped plate via a fifth bearing, and the second gear meshes with the first gear. The teeth on the outer wall of the second gear are connected and fixed to one end of the L-shaped rod.

[0014] Preferably, the second brake motor can drive the first gear to rotate the second gear, thereby the second gear drives the L-shaped rod to rotate.

[0015] Preferably, in order to cooperate with the two L-shaped rods to perform pressure compensation on the irregularly shaped casting, the third drive assembly includes: a third gear, a third brake motor, and a rack. The third gear is disposed at the center of one side of the inner wall of the moving groove via a sixth bearing; the third brake motor is disposed at one end of the sixth bearing, and the output end of the third brake motor is fixedly connected to the center of one end of the third gear. The third brake motor is electrically connected to a second pressure sensor; the rack is embedded in the top end of the moving groove, and the top surface of the rack is in contact with the top surface of the inner wall of the moving groove. The rack can be limited to move at the top end of the moving groove. The rack meshes with the third gear, and one end of the rack is fixedly connected to the second pressure block.

[0016] Preferably, the third brake motor can drive the third gear to drive the rack so that the second pressure block moves back and forth to the limit position.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. For regular-shaped castings, two independent second drive components use small gears to drive a large gear structure, which in turn drives two L-shaped rods to achieve uniform clamping. Combined with the fine-tuning of the positions of the second and third electric push rods, this adapts to the sawing and fixing of regular castings of different specifications. For irregular-shaped castings, a combination of L-shaped rods for initial positioning, second pressure block pressure compensation, and visual sensing leveling is used. The L-shaped rods first perform initial positioning of the irregular-shaped castings. Two sets of third drive components independently drive the second pressure block's deformable soft structure to conform to the irregular outer wall of the irregular-shaped casting to achieve pressure compensation. At the same time, the visual sensor and the first drive component work together to adjust the workpiece angle, ensuring that the irregular-shaped casting is stably fixed and the sawing end is flat. This device is compatible with any type of material, regular and irregular-shaped castings that can be accommodated in the sawing groove of a vertical band saw without the need to change special fixtures, thus having a certain degree of versatility.

[0019] 2. This invention achieves a dual improvement in both fixing quality and sawing precision through multi-dimensional precision control design: Regarding adaptive pressure adjustment, the first pressure sensor (corresponding to sheet metal and regular castings) and the second pressure sensor (corresponding to irregularly shaped castings) detect the fixing pressure value in real time. These sensors are electrically connected to the third electric push rod and the third brake motor, respectively, automatically adjusting the clamping force to the appropriate pressure. This avoids both insufficient pressure causing workpiece displacement and excessive pressure causing workpiece deformation. Regarding precise angle leveling, the vision sensor accurately identifies the tilt state of the irregularly shaped casting. The worm gear transmission, characterized by high precision and strong self-locking, drives the L-shaped rod to achieve minute angle adjustments, ensuring the sawing end of the irregularly shaped casting is flat and fundamentally solving the problem of tilted sawing surfaces. The second and third electric push rods in the adjustment device are selected from high-precision models and possess load-bearing capacity, ensuring the accuracy of workpiece position fine-tuning. The second drive component adopts the mechanical principle of "small gear driving large gear," increasing output torque while ensuring the synchronization and stability of the L-shaped rod clamping, further improving fixing precision and quality. Attached Figure Description

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

[0021] Figure 2 This is a diagram showing the position of the adjusting device of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A;

[0023] Figure 4This is a schematic diagram of the internal structure of the rectangular body of the present invention in cross-section;

[0024] Figure 5 This is a diagram showing the position of the fixing device of the present invention;

[0025] Figure 6 for Figure 5 Enlarged view of point B;

[0026] Figure 7 This is a schematic diagram of the H-shaped plate of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of the first pressing block of the present invention in cross-section;

[0028] Figure 9 This is a schematic diagram of the third driving component structure of the present invention.

[0029] In the picture: 1. Vertical band saw.

[0030] 2. Adjustment device; 21. Support plate; 22. Connecting rod; 23. First electric push rod; 24. Vision sensor; 25. Second electric push rod; 26. Third electric push rod; 27. Rectangular body; 28. Chamber; 29. ​​First drive assembly; 291. Turbine; 292. Worm gear; 293. First brake motor; 210. L-shaped round rod; 211. Connecting plate.

[0031] 3. Fixing device; 31. H-shaped plate; 32. Second drive assembly; 321. First gear; 322. Second brake motor; 323. Second gear; 33. L-shaped rod; 34. Moving groove; 35. First pressure block; 36. First pressure sensor; 37. Third drive assembly; 371. Third gear; 372. Third brake motor; 373. Rack; 38. Second pressure block; 39. Second pressure sensor. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-9This invention provides an adjustable clamping device for a vertical band saw, comprising: a vertical band saw 1, an adjusting device 2, and a fixing device 3. The vertical band saw 1 is capable of sawing plates and castings. The adjusting device 2 is located at the center of the right end of the top surface of the moving platform of the worktable of the vertical band saw 1. The adjusting device 2 can adjust the angle of the sawing end of the workpiece in cooperation with the fixing device 3 according to the sawing requirements of the workpiece, thereby achieving high-precision fixing. The fixing device 3 is located on the bottom surface of the rotating end of the adjusting device 2. The fixing device 3 can automatically adjust and fix the plate. The fixing device 3 can cooperate with the adjusting device 2 to automatically adjust and fix irregular and regular castings and adjust the flatness of the cutting edge. The fixing device 3 can automatically adjust and fix plates, regular castings, and irregular castings in different ways, and has a certain degree of versatility, while improving the fixing quality of irregular castings.

[0034] As a preferred option, further, such as Figure 2 , Figure 3 and Figure 4As shown, the adjustment device 2 includes: a support plate 21, a connecting rod 22, a first electric push rod 23, a vision sensor 24, a second electric push rod 25, a third electric push rod 26, a rectangular body 27, a chamber 28, a first drive assembly 29, an L-shaped rod 210, and a connecting plate 211. The support plate 21 is located at the center of the right end of the top surface of the worktable moving platform of the vertical band saw 1. The support plate 21 is used to support the top connecting assembly, and the support plate 21 has an important supporting and load-bearing function, thereby ensuring the stable operation of the connecting assembly at the top of the support plate 21. The connecting rod 22 is located on the support plate 211. At the top of the rear side of the outer wall, the connecting rod 22 can stably support the operation of the first electric push rod 23. The first electric push rod 23 is located at the rear end of the left side of the outer wall of the vision sensor 24. The first electric push rod 23 can drive the vision sensor 24 to move in a limited position. The high precision of the first electric push rod 23 can drive the vision sensor 24 to move in a high-precision limited position. The vision sensor 24 is located at the pushing end of the first electric push rod 23. The vision sensor 24 is used to identify tilted irregular castings, thereby providing a power source signal to the first brake motor 293 to adjust the first brake motor 293. The second electric push rod 25 is located at the top left side of the outer wall of the support plate 21. The second electric push rod 25 can drive the third electric push rod 26 to move in a limited position. The third electric push rod 26 is located at the pushing end of the second electric push rod 25. The third electric push rod 26 can drive the rectangular body 27 to move in a limited position. The second electric push rod 25 and the third electric push rod 26 have higher precision and a certain load-bearing capacity to ensure the stable operation of their connecting components. The second electric push rod 25 and the third electric push rod 26 are electrically connected to the vision sensor 24. The rectangular body 27 is located at the pushing end of the third electric push rod 26. At the moving end, a cavity 28 is provided inside the rectangular body 27, which provides installation and operation space for the first drive assembly 29; the first drive assembly 29 is disposed in the cavity 28; the L-shaped rod 210 is embedded in the top end of the front side of the outer wall of the rectangular body 27 through the first bearing, the L-shaped rod 210 can rotate through the first bearing, and the top end of the L-shaped rod 210 extends into the cavity 28 and is connected and fixed to the output end of the first drive assembly 29; the connecting plate 211 is disposed at the bottom end of the L-shaped rod 210, and the connecting plate 211 is used to connect and fix the L-shaped rod 210 and the H-shaped plate 31.

[0035] As a preferred option, further, such as Figure 3 and Figure 4As shown, the first drive assembly 29 includes a turbine 291, a worm gear 292, and a first brake motor 293. The turbine 291 is mounted on the rear top of the inner wall of the chamber 28 via a second bearing, and the turbine 291 can rotate via the second bearing. The front end of the turbine 291 is connected and fixed to the top end of the L-shaped rod 210. The worm gear 292 is mounted on the bottom end of the chamber 28 via two third bearings, and the worm gear 292 can rotate via the third bearings at both ends. The worm gear 292 and the turbine 291 mesh with each other. The first brake motor 293 is located at the center of the bottom end on the right side of the outer wall of the rectangular body 27, and the first brake motor 293 has a self-locking capability. To ensure the stable fixation of its connecting components in a static state, it plays an important role in stabilizing and fixing the irregularly shaped casting after tilting adjustment. The output end of the first brake motor 293 is connected and fixed to the right end of the worm gear 292, and the first brake motor 293 is electrically connected to the vision sensor 24. The first brake motor 293 can drive the worm gear 292 to drive the turbine 291 to rotate, thereby causing the L-shaped round rod 210 to drive the connecting plate 211 to rotate. The first drive component 29 uses the mechanical components of the turbine 291 and the worm gear 292 to achieve higher adjustment accuracy for irregularly shaped castings from tilting to leveling stage, and can achieve more precise parameter control.

[0036] Position fine-tuning stage (adapting to regular castings / plates): After the workpiece (regular casting or plate) is placed on the worktable moving platform, the vision sensor 24 moves horizontally under the drive of the first electric push rod 23 and collects the edge position signal of the workpiece; if there is a deviation between the sawing position of the workpiece and the saw blade position of the vertical band saw 1, the vision sensor 24 transmits the deviation signal to the second electric push rod 25 and the third electric push rod 26. The second electric push rod 25 drives the third electric push rod 26 to move in a direction perpendicular to the saw blade, and the third electric push rod 26 drives the rectangular body 27 and the fixing device 3 to move in a direction parallel to the saw blade. The two work together to fine-tune the workpiece to the sawing reference position and complete the position calibration.

[0037] Leveling stage of irregular casting: When the workpiece is an irregular casting, the vision sensor 24 collects the surface contour of the irregular casting and identifies whether it is tilted (such as the height difference of the sawing end); if tilt is detected, the vision sensor 24 transmits the tilt angle signal to the first brake motor 293. The first brake motor 293 starts and drives the worm 292 to rotate. The worm 292 drives the turbine 291 to rotate through tooth meshing. The turbine 291 drives the L-shaped round rod 210 to rotate around the first bearing, and then drives the fixing device 3 and the irregular casting to rotate synchronously through the connecting plate 211; when the vision sensor 24 detects that the sawing end of the irregular casting has reached a horizontal state, the first brake motor 293 stops running and self-locks, locking the position of the worm 292 and the turbine 291 to ensure that the angle of the irregular casting is stable during the sawing process and avoid the sawing surface from tilting.

[0038] As a preferred option, further, such as Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the fixing device 3 includes: an H-shaped plate 31, a second driving assembly 32, an L-shaped rod 33, a moving groove 34, a first pressure block 35, a first pressure sensor 36, a third driving assembly 37, a second pressure block 38, and a second pressure sensor 39. The H-shaped plate 31 is disposed on the bottom surface of the connecting plate 211. The special shape of the H-shaped plate 31 allows for better fit of its connecting components, and the H-shaped plate 31 also has a certain load-bearing capacity. There are two sets of the second driving assemblies 32, symmetrically arranged on the inner walls of the front and rear grooves of the H-shaped plate 31. On one side; there are two L-shaped rods 33, symmetrically arranged at one end of the two sets of second drive components 32. Each L-shaped rod 33 has a through-hole sliding groove 34 at its bottom end. The two second drive components 32 can drive the two L-shaped rods 33 to move closer and further apart. The two L-shaped rods 33 are designed in the shape of hooks for better fixation of the casting. There are two first pressure blocks 35, each located at the bottom end of one of the two L-shaped rods 33. There are two first pressure sensors 36, each embedded in one of the two... Two first pressure sensors 36 are electrically connected to the third electric push rod 26 at the center of the bottom end of the first pressure block 35, and the first pressure sensors 36 provide the power source signal to the third pressure sensor 36. There are two sets of third drive components 37, which are symmetrically arranged in the two moving slots 34. There are two second pressure blocks 38, which are respectively arranged at the moving ends of the two sets of third drive components 37. The two third drive components 37 can drive the two second pressure blocks 38 to move closer to each other and further away from each other. The two second pressure blocks 38 have a certain degree of softness. The purpose of the second pressure blocks 38 is to deform and fit the irregular shape of the outer wall of the irregular casting. At the same time, the pressure blocks can deform to a certain extent during the fixing process, so as to achieve better fit and fixation of the outer wall of the irregular casting. There are two second pressure sensors 39, which are embedded in the center of one side of the outer wall of the two second pressure blocks 38. The first pressure sensor 36 and the second pressure sensor 39 are used to detect the fixing pressure value of the regular plate casting and the irregular casting, so as to automatically adjust and prevent the fixing value from being too large and thus causing deformation.

[0039] As a preferred option, further, such as Figure 5As shown, the second drive assembly 32 includes: a first gear 321, a second brake motor 322, and a second gear 323. The first gear 321 is mounted on one end of the inner wall of the groove at one end of the H-shaped plate 31 via a fourth bearing, and the first gear 321 can rotate via the fourth bearing. The second brake motor 322 is mounted on one end of the fourth bearing and has a certain self-locking capability. The output end of the second brake motor 322 is centrally connected and fixed to one end of the first gear 321. The second gear 323 is mounted on the other end of the inner wall of the groove at one end of the H-shaped plate 31 via a fifth bearing, and the second gear 323 can rotate via the fourth bearing. The five bearings rotate, and the second gear 323 meshes with the first gear 321. The teeth on the outer wall of the second gear 323 are connected and fixed to one end of the L-shaped rod 33. The second brake motor 322 can drive the first gear 321 to rotate the second gear 323, thereby driving the L-shaped rod 33 to rotate. The first gear 321 is relatively small, and the second gear 323 is relatively large. This second drive assembly 32 uses the mechanical principle of a small gear driving a large gear to increase the output torque of the large gear. Thus, the two second gears 323 enable the two L-shaped rods 33 to have a greater fixing force on the thicker casting, improving the fixing quality.

[0040] As a preferred option, further, such as Figure 5 and Figure 9 As shown, the third drive assembly 37 includes a third gear 371, a third brake motor 372, and a rack 373. The third gear 371 is positioned at the center of one side of the inner wall of the moving groove 34 via a sixth bearing. The third gear 371 can rotate via the sixth bearing and provides a certain load-bearing and limiting function for the rack 373. The third brake motor 372 is located at one end of the sixth bearing and has a certain self-locking capability. The output end of the third brake motor 372 is fixedly connected to the center of one end of the third gear 371. The third brake motor 372 is connected to a second pressure sensor 39. Electrical connection; the rack 373 is embedded in the top of the moving groove 34, and the top surface of the rack 373 is in contact with the top surface of the inner wall of the moving groove 34. The rack 373 can move in a limited position in the top of the moving groove 34. The rack 373 meshes with the third gear 371. One end of the rack 373 is connected and fixed to the second pressure block 38. The third brake motor 372 can drive the third gear 371 to drive the rack 373 to move the second pressure block 38 back and forth in a limited position. The third drive assembly 37, in cooperation with the two L-shaped rods 33, can perform pressure fixing compensation on the bottom of the irregular casting, improving the fixing quality and accuracy.

[0041] Fixing device 3 adapts to different types of workpieces through "staged fixing and adaptive pressure adjustment". The specific working process is as follows:

[0042] The adjusting device 2 moves the fixing device 3 above the board, and the third electric push rod 26 drives the fixing device 3 to descend; the first pressure block 35 contacts the surface of the board, and the first pressure sensor 36 detects the pressure; when the pressure reaches the board adaptation threshold, the first pressure sensor 36 sends a signal to the third electric push rod 26 to stop the descent and complete the fixing.

[0043] The second brake motor 322 starts, driving the first gear 321 to rotate the second gear 323, causing the two L-shaped rods 33 to move closer to each other; the first pressure block 35 contacts both sides of the casting, and the first pressure sensor 36 detects the pressure; when the pressure reaches the threshold of the regular casting, the sensor sends a signal to the second brake motor 322, the motor stops and self-locks, completing the uniform clamping.

[0044] Initial limiting: Two sets of second brake motors 322 start independently, and adjust the distance between the two L-shaped rods 33 according to the contour of the irregular casting, so that the L-shaped rods 33 fit the edge of the casting, and achieve initial limiting without applying full force, only to prevent the casting from shifting;

[0045] Pressure compensation: The third brake motor 372 starts, driving the third gear 371 to move the rack 373, causing the second pressure block 38 to extend towards the casting, and the soft pressure block fits the irregular surface and deforms.

[0046] Pressure closed-loop control: The second pressure sensor 39 detects the compensation pressure in real time. When the pressure reaches the threshold, it sends a signal to the third brake motor 372. The motor stops and self-locks, forming a stable fixation of "preliminary limit and multi-point compensation" to avoid shaking or deformation of irregularly shaped castings.

[0047] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and the specific work is as follows:

[0048] Compared to traditional vertical band saws that are only designed for one type of material and cannot be used across different materials, and are too limited in scope, this invention can cut any type of material, regular-shaped castings, and irregular-shaped castings that are accommodated in the sawing groove of the vertical band saw 1. The mechanical arm places the sheet metal into the moving platform of the worktable inside the vertical band saw 1, and the two first pressure blocks 35 are driven by the third electric push rod 26 to fix the sheet metal. Then, the two first pressure sensors 36 adjust the pressure of the two third electric push rods 26 to match the pressure, so that they cooperate with the vertical band saw 1 to cut the sheet metal.

[0049] When the robotic arm places the regular-shaped casting between the L-shaped rods 33, the two L-shaped rods 33 are driven by the two second brake motors 322 to clamp and fix the regular-shaped casting evenly. The regular-shaped casting is then adjusted by the second electric push rod 25 and the third electric push rod 26, and then cooperates with the vertical band saw 1 to saw the plate.

[0050] When the robotic arm places the irregularly shaped casting between the L-shaped rods 33, the two second brake motors 322 simultaneously drive the two L-shaped rods 33 to clamp and fix the casting. Because the two L-shaped rods 33 are driven independently, and the two second brake motors 322 respectively drive the two L-shaped rods 33 to limit and adjust the casting, the casting does not reach the fixing force required for sawing. The two L-shaped rods 33 only limit the casting. The two third brake motors 372 independently drive the two racks 373 to compensate for the pressure on the casting, and the two first pressure sensors 36 respectively adjust the pressure of the third brake motors 372. The first electric push rod 23, in conjunction with the two L-shaped rods 33, achieves the fixing force required for sawing. Because of the irregular shape of the outer wall of the irregular casting, it will tilt after fixing, resulting in a tilted sawing surface. The tilted irregular casting is identified and sensed by the cooperation of the first electric push rod 23 and the vision sensor 24, and at the same time, a power source signal is provided to the first brake motor 293, so that the first brake motor 293 drives the irregular casting to level it. Similarly, the sawing is completed with the cooperation of the second electric push rod 25, the third electric push rod 26 and the vertical band saw 1. Thus, the present invention has a certain degree of flexibility and versatility, and greatly improves the fixing quality.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable clamping device for a vertical band saw, characterized in that, include: Vertical band saw (1) is capable of sawing plates and castings; Adjustment device (2) is located at the center of the right end of the top surface of the workbench moving platform of the vertical band saw (1); The fixing device (3) is set on the bottom surface of the rotating end of the adjusting device (2). The fixing device (3) can automatically adjust and fix the plate. The fixing device (3) can cooperate with the adjusting device (2) to automatically adjust and fix irregular and regular castings and adjust the flatness of the cutting edge. The regulating device (2) includes: A support plate (21) is located at the center of the right end of the top surface of the workbench moving platform of the vertical band saw (1); A connecting rod (22) is disposed at the top end of the rear side of the outer wall of the support plate (21); The first electric push rod (23) is located at the rear end of the left side of the outer wall of the connecting rod (22); A vision sensor (24) is disposed at the pushing end of the first electric push rod (23); The second electric push rod (25) is located at the top left side of the outer wall of the support plate (21); The third electric push rod (26) is disposed at the pushing end of the second electric push rod (25), and the second electric push rod (25) and the third electric push rod (26) are electrically connected to the vision sensor (24). A rectangular body (27) is disposed at the pushing end of the third electric push rod (26), and a cavity (28) is provided inside the rectangular body (27). The first drive assembly (29) is disposed within the chamber (28); The L-shaped rod (210) is embedded in the top end of the front side of the outer wall of the rectangular body (27) through the first bearing, and the top end of the L-shaped rod (210) extends into the cavity (28) and is connected and fixed to the output end of the first drive assembly (29); A connecting plate (211) is disposed at the bottom end of the L-shaped round rod (210); The first driving component (29) includes: The worm gear (291) is mounted on the rear top of the inner wall of the chamber (28) via a second bearing, and the front end of the worm gear (291) is connected and fixed to the top end of the L-shaped round rod (210); The worm (292) is disposed at the bottom end of the chamber (28) via two third bearings, and the worm (292) and the worm wheel (291) mesh with each other; The first brake motor (293) is located at the bottom center of the right side of the outer wall of the rectangular body (27). The output end of the first brake motor (293) is connected and fixed to the right end of the worm (292). The first brake motor (293) is electrically connected to the vision sensor (24). The first brake motor (293) can drive the worm (292) to drive the worm wheel (291) to rotate, thereby causing the L-shaped rod (210) to drive the connecting plate (211) to rotate. The fixing device (3) includes: H-shaped plate (31) is disposed on the bottom surface of the connecting plate (211); The second drive assembly (32) consists of two sets, which are symmetrically arranged on one side of the inner wall of the front and rear grooves of the H-shaped plate (31); There are two L-shaped rods (33), which are symmetrically arranged at one end of the two sets of the second drive components (32). The bottom ends of the two L-shaped rods (33) are provided with a through-slot (34). The first pressure block (35) consists of two blocks, which are respectively located at the bottom ends of the two L-shaped rods (33); There are two first pressure sensors (36), which are embedded in the bottom center of the two first pressure blocks (35) respectively. The two first pressure sensors (36) are electrically connected to the third electric push rod (26). The third drive assembly (37) consists of two sets, which are symmetrically arranged in the two moving slots (34); There are two second pressure blocks (38), which are respectively set on the moving ends of the two sets of third driving components (37). The two third driving components (37) can drive the two second pressure blocks (38) to move closer to each other and further away from each other. There are two second pressure sensors (39), which are embedded in the center of one side of the outer wall of the two second pressure blocks (38).

2. The adjustable clamping device for a vertical band saw according to claim 1, characterized in that, The two second drive components (32) are respectively able to drive the two L-shaped rods (33) to move closer to each other and further away from each other.

3. The adjustable clamping device for a vertical band saw according to claim 2, characterized in that, The second driving component (32) includes: The first gear (321) is disposed at one end of the inner wall of the groove at one end of the H-shaped plate (31) via the fourth bearing; The second brake motor (322) is located at one end of the fourth bearing, and the output end of the second brake motor (322) is fixedly connected to the center of one end of the first gear (321); The second gear (323) is set at the other end of the inner wall of the groove at one end of the H-shaped plate (31) via the fifth bearing. The second gear (323) meshes with the first gear (321). The teeth on the outer wall of the second gear (323) are connected and fixed to one end of the L-shaped rod (33).

4. The adjustable clamping device for a vertical band saw according to claim 3, characterized in that, The second brake motor (322) can drive the first gear (321) to rotate the second gear (323), thereby the second gear (323) drives the L-shaped rod (33) to rotate.

5. The adjustable clamping device for a vertical band saw according to claim 4, characterized in that, The third drive component (37) includes: The third gear (371) is disposed at the center of one side of the inner wall of the moving groove (34) via the sixth bearing; The third brake motor (372) is located at one end of the sixth bearing. The output end of the third brake motor (372) is fixedly connected to the center of one end of the third gear (371). The third brake motor (372) is electrically connected to a second pressure sensor (39). The rack (373) is embedded in the top end of the moving groove (34), and the top surface of the rack (373) is in contact with the top surface of the inner wall of the moving groove (34). The rack (373) can move in a limited position in the top end of the moving groove (34). The rack (373) meshes with the third gear (371). One end of the rack (373) is connected and fixed to the second pressure block (38).

6. The adjustable clamping device for a vertical band saw according to claim 5, characterized in that, The third brake motor (372) can drive the third gear (371) to drive the rack (373) to move the second pressure block (38) back and forth in a limited position.

Images