Double-head sawing machine

Abstract

The present invention discloses a double-headed saw machine, comprising a frame, two cutting seats and two sliding drive devices, wherein the sliding drive device comprises a driving motor, a gear and a rack, the gear being sleeved on the output shaft of the driving motor, the rack being mounted on the frame, the teeth of the rack being meshed with the gear, the two driving motors being mounted on the cutting seats respectively, the output shaft of the driving motor being located outside the front side of the frame, the output shaft of the driving motor being arranged front and rear relative to the rack, the two gears being mounted on the output shafts of the two driving motors respectively and being meshed with the racks, a guide rod being provided outside the frame, a sliding block being mounted on the two cutting seats, a trustee device being provided between the two cutting seats, the trustee device comprising a mounting seat and a trustee rod, mounting seats being provided at both axial ends of the trustee rod, the mounting seat comprising a base and a support seat. Compared with the prior art, the length of the steel pipe to be cut can be determined by controlling the relative travel distance of the two cutting seats, without the need to disassemble other components, thereby reducing processing costs.

Description

Technical Field

[0001] The invention relates to the field of steel pipe cutting and sawing, in particular to a double-head cutting and sawing machine. Background Art

[0002] The steel pipes just produced are of different lengths. If steel pipes of the same length are required, a saw machine is needed to cut them. Usually, the steel pipe to be cut is sent out of the saw machine, and the cutting wheel rotates to cut it, thereby achieving the purpose of quickly cutting the steel pipe. The existing double-head saw machine mainly comprises a frame, a cutting seat and a steel pipe cutting fixture installed on the cutting seat. The cutting seat is slidably installed on the frame. The cutting seat and the steel pipe cutting fixture are each provided with two, and each cutting fixture is provided with a cutting wheel. The two cutting seats are connected by a connecting rod, and a motor drive device that drives one cutting seat to move horizontally is installed on the frame; when used, the motor drive device drives one cutting seat to move horizontally, and the other cutting seat is synchronously moved horizontally through the connecting rod; in this double-head saw machine, the spacing between the two cutting seats is determined by the connecting rod, and the length of the connecting rod can limit the spacing between the two cutting seats. The limitation of the spacing between the two cutting seats determines the length of the cut steel pipe. However, the length of the connecting rod is fixed and cannot be adjusted. If steel pipes of different sizes need to be cut, workers need to remove the connecting rod and replace it with a connecting rod of a different length. The operation is relatively inconvenient, and the producer needs to purchase side shafts of different sizes, which increases the processing cost.

[0003] In view of this, the inventor of this case conducted in-depth research on the problem, which led to the creation of this case. Summary of the Invention

[0004] The object of the present invention is to provide a double-head sawing machine to solve the problems of inconvenient operation and high processing cost of the existing connecting rod replacement.

[0005] In order to achieve the purpose, the present invention adopts such technical solution:

[0006] The cam is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is meshed with the toothed plate, and the toothed plate is meshed with the toothed plate, and the toothed plate is meshed with the toothed plate, and the toothed plate is meshed with the toothed plate, and the toothed plate is meshed with the toothed plate, and the toothed plate is meshed with the toothed plate, and the toothed plate is meshed with the toothed plate, and the toothed plate is meshed with the toothed plate,

[0007] A trustee device for placing the steel pipe is provided between the two cutting seats, and the trustee device is located between the two cutting fixtures, and the trustee device has a mounting seat and a trustee rod, and the above-mentioned mounting seats are provided at both axial ends of the trustee rod, and the mounting seat has a base for being fixedly mounted on the cutting seat and a support seat that can adjust the height up and down, and the support seat is provided with two inclined surfaces that are relatively inclined front and back, and the two inclined surfaces are divided into a front inclined surface and a rear inclined surface, and the front inclined surface and the rear inclined surface constitute a clamping groove that gradually shrinks from top to bottom, and the axial end of the trustee rod is in the clamping groove, and the trustee rod has a first plate body and a second plate body, and the lower end of the first plate body is aligned with the lower end of the second plate body. The lower end portion is integrally formed and connected, and the first plate body and the second plate body form a strip-shaped placement groove with an open top surface, left end surface and right end surface. The part of the first plate body located in the clamping groove is in contact with the front inclined surface, and the part of the second plate body located in the clamping groove is in contact with the rear inclined surface. The support seat is located on the front inclined surface and is equipped with a front pressure wheel facing the rear inclined surface and arranged opposite to the second plate body. The wheel center line of the front pressure wheel is perpendicular to the front inclined surface. The support seat is located on the rear inclined surface and is equipped with a rear pressure wheel facing the front inclined surface and arranged opposite to the first plate body. The wheel center line of the rear pressure wheel is perpendicular to the rear inclined surface, and the front pressure wheel and the rear pressure wheel are staggered left and right.

[0008] The rack is mounted on the front side of the frame, and the meshing teeth of the rack are arranged forward. Both of the cutting seats have a suspended mounting plate extending out of the front side of the frame and above the rack. The above-mentioned drive motor is upright mounted on the top surface of the suspended mounting plate, and the output end of the above-mentioned drive motor passes downward through the suspended mounting plate. A mounting sleeve is fixed on the bottom surface of the suspended mounting plate, and the mounting sleeve is outside the rack and is arranged opposite to the rack front and back. An exposed window is provided on the side wall of the above-mentioned mounting sleeve. The above-mentioned gear is rotatably mounted in the mounting sleeve through the gear shaft, and a partial part of the gear extends out of the exposed window. The output shaft of the above-mentioned drive motor extends into the mounting sleeve and is connected with the gear shaft.

[0009] The mounting sleeve comprises an upper sleeve, a lower sleeve and a lower support block. The upper sleeve is a hollow cylindrical structure that passes through from top to bottom, and the lower sleeve is a hollow cylindrical structure with an open top. The upper end of the upper sleeve is connected to the suspended mounting plate, and the upper end of the lower sleeve is connected to the lower end of the upper sleeve. The inner diameter of the lower sleeve is smaller than the inner diameter of the upper sleeve. The lower support block is below the lower sleeve. The upper end of the gear shaft is in the upper sleeve, and the upper end sleeve of the gear shaft is inherently mounted on the upper bearing in the upper sleeve. The gear is in the lower sleeve, and the outer wall of the lower sleeve is provided with a An extension opening extending in the up-down direction and allowing a local part of the gear to extend out is provided, and this extension opening is the exposed window. A through-opening communicating with the hollow space of the lower sleeve is provided on the bottom surface of the lower sleeve. The lower end of the gear shaft is in the lower sleeve and passes through the through-opening, and a lower bearing installed in the through-opening is sleeved on the outside of the gear shaft at the through-opening. The lower support block is locked together with the bottom surface of the lower sleeve, and a closed-loop protrusion extending into the through-opening is protruded upward on the top surface of the lower support block, and the lower bearing is pressed against the top surface of the closed-loop protrusion, and the lower end portion of the gear shaft extends into the closed-loop protrusion.

[0010] Buffer blocks are respectively provided on the left and right sides of the bottom surface of the cutting seat, and anti-collision blocks that limit the buffer blocks from crossing are provided at the left and right ends of the top surface of the above-mentioned frame, and the buffer block has an upper connecting plate and a lower buffer rod, the upper connecting plate is locked together with the bottom surface of the lower base plate, the lower buffer rod is uprightly arranged below the upper connecting plate, and the lower end portion of the lower buffer rod is a convex arc structure convex downward, the top surface of the anti-collision block is an inclined surface inclined downward, and the inclined surfaces of the two anti-collision blocks constitute a horn structure gradually expanding from bottom to top, the lower buffer rod on the two buffer blocks is between the two inclined surfaces, and the highest height of the anti-collision block in the up and down direction is greater than the distance between the lower buffer rod and the bottom of the mounting groove, and the length of the rack in the left and right directions is longer than or equal to the distance between the two anti-collision blocks.

[0011] The sliding block is installed together with the bottom surface of the cutting seat. The two sliding blocks are arranged opposite to each other on the left and right sides, and both sliding blocks are provided with a sliding groove for the guide rod to slide in.

[0012] The sliding block comprises a fixing portion, a mounting portion and a sleeve portion, the fixing portion is locked together with the bottom surface of the cutting seat, the two mounting portions are located between the two fixing portions, the bottom surfaces of the fixing portion and the mounting portion are both recessed upwardly with an insertion groove that penetrates and extends in the left and right directions, the insertion groove of the fixing portion and the insertion groove of the mounting portion are arranged opposite to each other on the left and right, the mounting portion is provided with an embedding groove that penetrates in the up and down directions, the sleeve portion is embedded in the range of the embedding groove, the sleeve portion has an upper and lower tightening block and a lower tightening block that are arranged opposite to each other up and down, the upper and lower tightening blocks are locked together, the upper and lower tightening blocks are recessed on the opposite side of the tightening block and the lower tightening block into which the guide rod is inserted, the guide groove and the insertion groove are arranged opposite to and communicated with each other, and the guide groove and the insertion groove constitute the sliding groove.

[0013] There is a translation distance between the cutting fixture and the mounting seat for the pipe rod to translate left and right.

[0014] The base comprises a lower side plate and an upper top plate, the lower side plate is located on one side of the bottom surface of the upper top plate and are arranged perpendicular to each other, the lower side plate is installed together with the cutting seat, the support seat is above the upper top plate, and a vertical adjustment rod passing through the upper top plate is installed on the upper top plate, the upper end of the above-mentioned vertical adjustment rod extends into the support seat and is connected to the support seat, and a limit head is provided on the lower end of the vertical adjustment rod to limit the vertical adjustment rod below the bottom surface of the upper top plate, and the lower end of the above-mentioned vertical adjustment rod is externally screwed with a locking nut between the upper top plate and the limit head, and a guide rod that tightly fits and passes through the upper top plate is erected on the bottom surface of the above-mentioned support seat.

[0015] The above-mentioned support seat comprises an upper support block and a lower support block, the lower support block is a rectangular block extending in the left and right directions, the top surface of the lower support block is recessed downwardly and provided with a mounting groove running through the left and right directions, the upper support block comprises a lower block, a front block and a rear block, the lower block is placed in the mounting groove in a manner that can be translated back and forth, and the lower support block is provided with a lateral adjustment rod for controlling the front and rear adjustment of the lower block, the front block and the rear block are both above the lower support block, the front block and the rear block are arranged to be tilted back to back, the rear side surface of the front block is the front inclined surface, and the front side surface of the rear block is the rear inclined surface, the lower end portion of the front block and the lower end portion of the rear block are both integrally connected to the lower block and are arranged at an angle, and the spacing between the front block and the rear block is the clamping groove.

[0016] The double-headed saw machine of the present invention drives two driving motors synchronously when in use. The output shaft of the driving motor drives the gear to rotate. Under the meshing action of the gear and the rack, the gear rotates on the rack and moves left and right along the rack, thereby driving the cutting seat to move left and right on the frame. The relative movement distance of the two driving motors is adjusted in advance, that is, the cutting spacing of the steel pipe can be controlled. Moreover, during the translation of the two cutting seats, the connection between the sliding block and the cutting seat also translates relatively, so that the sliding block moves relative to the guide rod, thereby driving the cutting seat to translate left and right on the guide rod, and it is not easy to deviate from the track; moreover, when the two cutting seats move relative to each other, the steel pipe is limited in the strip placement groove under the action of the hosting device, and the steel pipe to be cut and the cut steel pipe can be translated more smoothly and pushed out smoothly; compared with the prior art, there is no connecting rod between the two cutting seats, and the spacing between the two cutting seats is determined by the distance the cutting seats are driven to move by the sliding drive device. The required length of the steel pipe to be cut can be determined by controlling the relative movement distance of the two cutting seats. The operation is simple and convenient. The invention can adapt to the various sizes of steel pipes to be cut, and there is no need to disassemble other parts to control the length of the steel pipe, which reduces the processing cost. At the same time, the two cutting seats can run at the same time and can cut both ends of the steel pipe at the same time. After cutting both ends of the steel pipe, the cut steel pipe can be directly pushed out to cut the next steel pipe to be cut. There is no need to wait for the cutting position of the other end to arrive after cutting at one end, which enhances the processing efficiency. In addition, after the two cutting fixtures cut the steel pipe, the steel pipe to be cut will push the cut steel pipe out horizontally. When the cutting is completed, the steel pipe can move horizontally in the strip placement groove of the tube rod and is not easily offset under the limitation of the front pressure wheel and the rear pressure wheel, so that the cut steel pipe will not be in a suspended state and easily tilted downward, and the cut steel pipe is placed horizontally in the tube rod, so that the steel pipe to be cut and the cut steel pipe can be relatively positioned, so that the cut steel pipe between the two stainless steel pipe cutting clamps can be delivered more smoothly; furthermore, with the cooperation of the guide rod and the sliding block, the cutting seat is not easily offset when moving left and right, so that the steel pipe can be cut more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 This is another structural diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of the assembly structure of the mounting sleeve and the suspended mounting plate of the present invention.

[0020] Figure 4 It is a schematic diagram of the assembled cross-sectional structure of the mounting sleeve and the suspended mounting plate of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the sliding block and the guide rod of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the hosting device of the present invention. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present invention, it is described in detail below with reference to the accompanying drawings.

[0024] A double-head sawing machine, such as Figure 1-6 As shown, it includes a frame 1 and a cutting seat 2. The cutting seat 2 is provided with two, and the two cutting seats 2 are slidably mounted on the frame 1. The frame 1 is provided with a sliding drive device 3 for driving the two cutting seats 2 to slide synchronously. The sliding drive device 3 has a driving motor 31, a gear 32 and a rack 33. The driving motor 31 is arranged vertically, and the gear 32 is sleeved on the output shaft of the driving motor 31. The rack 33 is installed on the frame 1, and the teeth of the rack 33 are meshed with the gear 32. The sliding direction of the cutting seat 2 is the left and right direction. The top surface of the frame is provided with a slide rail 11 extending along the left and right directions, and sliders are provided on the left and right sides of the cutting seat 2 at positions corresponding to the slide rails; when in use, the driving motor 31 is driven, and the driving motor 31 drives the gear 32 to rotate. The engagement of the gear 32 and the rack 33 causes the gear 32 to move horizontally along the rack 33, thereby driving the cutting seat 2 to move horizontally on the frame under the cooperation of the slide rail 11 and the slider.

[0025] The drive motor 31 and the above-mentioned gear 32 are each provided with two, the two drive motors 31 are respectively mounted on the cutting seat 2, and the output shaft of the drive motor 31 is outside the front side or rear side of the frame 1, the output shaft of the drive motor 31 is arranged relative to the rack 33 front and back, and the two gears 32 are correspondingly mounted on the output shafts of the two drive motors 31 and are engaged with the rack 33 together; specifically, the rack 33 is mounted on the front side of the frame 1, and the meshing teeth of the rack 33 are arranged forward, and the lower ends of the two cutting seats 2 have a suspended mounting plate 21 extending outside the front side of the frame 1 and above the rack 33, the above-mentioned drive motor 31 is upright mounted on the top surface of the suspended mounting plate 21, and the output end of the above-mentioned drive motor 31 passes downward through the suspended mounting plate 21 A mounting sleeve 4 is fixed to the bottom surface of the suspended mounting plate 21, and the mounting sleeve 4 is outside the rack 33 and is arranged front to back opposite to the rack 33. A bare window 100 is opened on the side wall of the above-mentioned mounting sleeve 4, and the bare window 100 is arranged toward the frame. The above-mentioned gear 32 is rotatably mounted in the mounting sleeve 4 through the gear shaft 321, and a partial part of the gear 32 extends out of the bare window 100. The output shaft of the above-mentioned drive motor 31 extends into the mounting sleeve 4 and is connected to the gear shaft 321. The mounting sleeve 4 has an upper sleeve 41, a lower sleeve 42 and a lower support block 43. The upper sleeve 41 is a hollow cylindrical structure that passes through from top to bottom, and the lower sleeve 42 is a hollow cylindrical structure with an open top surface. The upper end of the upper sleeve 41 is connected to the suspended mounting plate 21 Then, the upper end of the lower sleeve 42 is connected to the lower end of the upper sleeve 41, and the inner diameter of the lower sleeve 42 is smaller than the inner diameter of the upper sleeve 41. The lower support block 43 is below the lower sleeve 42. The upper end of the gear shaft 321 is in the upper sleeve 41, and the upper end of the gear shaft 321 is inherently mounted on the upper bearing 3211 in the upper sleeve 41. The gear 32 is in the lower sleeve 42. The outer wall of the lower sleeve 42 is provided with an extension opening extending in the up and down directions for a partial part of the gear 32 to extend out. This extension opening is the exposed window 100. A through opening connected to the hollow space of the lower sleeve 42 is provided on the bottom surface of the lower sleeve 42. The lower end of the gear shaft 321 is in the lower sleeve 42 and passes through the through opening, and the gear shaft 32 1. A lower bearing 3212 is sleeved on the through-opening and installed in the through-opening. The lower support block 43 is locked together with the bottom surface of the lower sleeve 42, that is, an upper screw hole is recessed upward on the bottom surface of the lower sleeve 42, and a lower screw hole is provided on the lower support block 43 that is aligned with the lower screw hole up and down. The lower screw hole is set through the upper and lower ends. The lower support block 43 is locked together with the lower sleeve 42 by passing a locking bolt through the lower screw hole and the upper screw hole. A closed annular protrusion 431 extending into the through-opening is protruded upward on the top surface of the lower support block 43, and the lower bearing 3212 is pressed against the top surface of the closed annular protrusion 431. The lower end portion of the gear shaft 321 extends into the closed annular protrusion 431, that is, the top surface of the closed annular protrusion 431 is recessed with a rotation groove for the lower end portion of the gear 32 shaft to rotate in.During operation, the gear 32 extends from the exposed window 100 and meshes with the rack 32 on the front side of the frame 1. The gear 32 rotates under the drive of the gear shaft 321 and the drive motor 31. The gear shaft 321, in cooperation with the upper bearing 3211 and the lower bearing 3212, can stably rotate within the mounting sleeve 4 without shaking. At the same time, the upper bearing 3211 prevents the gear 32 from moving upward, thereby generating an upward supporting force on the gear 32. The lower bearing 3212 generates a supporting force on the bottom surface of the gear 32, thereby providing the gear 32 with vertical support and more stable rotation, thereby more stably meshing with the rack 33. In addition, the lower end of the gear shaft 321 rotates and extends into the rotation groove, which can guide the gear shaft 321. During the rotation of the gear shaft 321, it is difficult to deviate from its position within the mounting sleeve 4.

[0026] The frame 1 is provided with a guide rod 12 extending in the left and right directions and located below the two cutting seats 2. Both cutting seats 2 are equipped with sliding blocks 5 that are slidably mounted on the guide rod 12. Specifically, the guide rod 12 is a circular cylindrical rod extending in the left and right directions. The sliding block 5 is installed together with the bottom surface of the cutting seat 2. The sliding block 5 is on the opposite side of the two cutting seats 2, and the two sliding blocks 5 are arranged opposite to each other left and right. The two sliding blocks 5 are provided with a sliding groove for the guide rod 12 to slide in. The sliding groove is a circular structure, and the two end portions of the guide rod 12 are provided with a limit block (not shown in the figure) that prevents the sliding block 5 from falling off the guide rod 12. The two sliding blocks are located between the two limit blocks. The fixing portion 51 and the mounting portion 52 are both provided with an upward recessed groove extending through the bottom surface of the fixing portion 51 and the mounting portion 52, and the mounting portion 53 is provided with an upward recessed groove extending through the bottom surface of the fixing portion 51 and the mounting portion 52. 53 is embedded in the embedding groove range, and the sleeve portion 53 has an upper and lower tightening block and a lower tightening block arranged relatively to each other, and the upper and lower tightening blocks are locked together, that is, a lower mounting hole is provided on the top surface of the lower tightening block, and an upper mounting hole is provided on the upper tightening block, which is arranged in an upper and lower position corresponding to the lower mounting hole. The mounting screw passes through the upper and lower mounting holes, and a guide groove for the guide rod 12 to extend into is recessed on the opposite side of the upper and lower tightening blocks. The guide groove is arranged opposite to and communicates with the insertion groove, and the guide groove and the insertion groove constitute the sliding groove. The upper tightening block is provided with a mounting through hole that penetrates along the left and right directions, and a bolt that is screwed together with the cutting seat is provided in the mounting through hole, and the bolt is pressed against the top surface of the upper tightening block. During assembly, both ends of the guide rod 12 are placed in the guide grooves of the lower tightening block, and the upper tightening block is buckled, and the upper tightening block and the lower tightening block are locked together by the mounting screws, and the sleeve portion 53 is embedded in the embedding groove of the mounting portion 52, and finally the two fixing parts are locked together with the bottom surface of the cutting seat 2 by the locking screws, and the sliding block 5 and the cutting seat 2 are further connected together under the action of the bolts; during application, when the two cutting seats 2 move relative to each other, the sliding block 5 is driven to move left and right on the guide rod 12, and the guide rod 12 guides the cutting seat 2 so that the cutting seat 2 can not deviate from the track. At the same time, under the action of the limit blocks at both ends of the guide rod 12, the cutting seat 2 will not separate from the guide rod 12.

[0027] Preferably, buffer blocks 23 are respectively provided on the left and right sides of the bottom surface of the cutting seat 2, and anti-collision blocks 13 are provided at the left and right ends of the top surface of the above-mentioned frame 1; specifically, the cutting seat 2 is between the two buffer blocks 23, and the two buffer blocks 23 are between the two anti-collision blocks 13, and the buffer block 23 has an upper connecting plate 231 and a lower buffer rod 232, the upper connecting plate 231 is locked together with the bottom surface of the cutting seat 2, and the lower buffer rod 232 is uprightly arranged below the upper connecting plate 231, and the lower end portion of the lower buffer rod 232 is a convex arc structure convex downwardly, that is, the lower end portion of the lower buffer rod 232 is an arc structure gradually shrinking from top to bottom, the top surface of the anti-collision block 13 is an inclined surface inclined downwardly, and the inclined surfaces of the two anti-collision blocks 13 constitute a horn structure gradually expanding from bottom to top, the lower buffer rod 232 on the two buffer blocks 23 is between the two inclined surfaces, and the anti-collision block 13 The maximum height in the downward direction is greater than the distance between the lower buffer rod 232 and the bottom of the mounting groove, and the length of the rack 33 in the left and right directions is longer than or equal to the distance between the two anti-collision blocks; when in use, when the cutting seat 2 moves left and right to the end of the rack 33, the lower end of the lower buffer rod 232 moves to the inclined surface of the anti-collision block 13, and because the maximum height in the up and down directions of the anti-collision block 13 is greater than the distance between the lower buffer rod 232 and the bottom of the mounting groove, the lower buffer rod 232 cannot pass over the anti-collision block 13, thereby limiting the buffer block 23 from passing over the anti-collision block, and further, when the control program of the saw machine fails, the gear 32 will not fall out of the rack 33 and collide with the frame; furthermore, when the cutting seat 2 slides along the rack 332, since there is no distance between the rack 332 and the anti-collision block 13, the cutting seat 2 is less likely to fall out of the frame under the action of the anti-collision block 13.

[0028] The cutting seat 2 is provided with a cutting clamp 22, and a trustee device 7 for placing the steel pipe is provided between the two cutting seats 2, and the trustee device 7 is arranged opposite to the cutting clamp 22; specifically, the cutting clamp 22 has a slot for clamping the steel pipe, and the trustee device is located between the two slots. The trustee device 7 has a mounting seat and a trustee rod 71, and the mounting seat has a base 72 for being fixedly mounted on the cutting seat and a support seat 73 that can adjust the height up and down, that is, the base 72 has a lower side plate 721 and an upper top plate 722, the lower side plate 721 is located on one side of the bottom surface of the upper top plate 722 and is arranged perpendicular to each other, the lower side plate 721 is locked together with the cutting seat 2, and the support seat 73 is located above the upper top plate 722, and a vertical adjustment rod 7221 passing through the upper top plate 722 is installed on the upper top plate 722, and the upper end of the above-mentioned vertical adjustment rod 7221 extends into the support seat 73 and is connected to the support seat 73, and the vertical adjustment rod 72 The lower end of the vertical adjustment rod 7221 is provided with a limit head that limits the vertical adjustment rod 7221 to below the bottom surface of the upper top plate 722, and the lower end of the above-mentioned vertical adjustment rod 7221 is screwed externally with a locking nut located between the upper top plate 722 and the limit head, and the bottom surface of the above-mentioned support seat 73 is vertically provided with a guide adjustment rod that tightly fits and passes through the upper top plate 722; when in use, the lower side plate 721 of the base 72 is locked together with the cutting seat, thus completing the installation of the base 72 and the saw machine; at the same time, during use, the vertical adjustment rod 7221 is passed upward through the through hole and screwed together with the support seat 73, and then the locking nut is screwed upward so that the upper top plate 722 is pushed upward under the pushing action of the locking nut, thereby moving the support seat 73 upward. When the support seat 73 moves upward to the required position, the locking nut is stopped, that is, the vertical height adjustment of the support seat 73 is achieved, and under the action of the guide adjustment rods, the upper top plate 722 can move upward more smoothly.

[0029] The support seat 73 is provided with two inclined surfaces arranged relatively inclined front and back. The two inclined surfaces are divided into a front inclined surface and a rear inclined surface. The front inclined surface and the rear inclined surface constitute a clamping groove which gradually shrinks from top to bottom. The clamping groove is a V-shaped groove, that is, the above-mentioned support seat 73 has an upper support block 731 and a lower support block 732. The lower support block 732 is a rectangular block extending in the left and right directions. The top surface of the lower support block 732 is concave downwardly and provided with a mounting groove which runs through the left and right directions. The upper support block 731 has a lower block, a front block and a rear block. The lower block is placed in the mounting groove in a manner that it can be translated back and forth. The inner side wall of the mounting groove is between the front side wall and the rear side wall of the lower block. There is a spacing, and the lower support block 732 is provided with a transverse adjustment rod 7321 for controlling the front and rear adjustment of the lower block, that is, the side wall of the lower block is provided with an external fixing hole (not shown in the figure) that is connected to the installation groove and passes through the lower block front and back, and the lower block is provided with an internal fixing hole (not shown in the figure) that passes through the lower block front and back at the position corresponding to the external fixing hole. The internal fixing hole is an internal threaded hole, and the transverse adjustment rod 7321 is an adjusting screw. The adjusting screw is screwed into the internal threaded hole. The head of the transverse adjustment rod 7321 is limited to the outside of the front side of the lower support block 32, and the rod of the transverse adjustment rod 7321 passes through the external fixing hole and the internal fixing hole. The end of 21 extends out of the rear side of the lower support block, and the transverse adjustment rod 7321 is tightly fitted in the external fixing hole and the internal fixing hole. The transverse adjustment rod 7321 passes through the outside of the lower block, and the transverse adjustment rod 32 is screwed into the internal fixing hole, and the end of the transverse adjustment rod 7321 is provided with a locking nut that tightly fits the rear side of the lower support block. When in use, loosen the locking nut and rotate the transverse adjustment rod. The rotation of the transverse adjustment rod causes the lower block that is screwed with the transverse adjustment rod to move forward and backward in the installation groove accordingly. After the lower block moves forward and backward to adjust its position, tighten the nut to fix the position of the lower block; the front block and the rear block are both on the lower support block Above 732, the front block and the rear block are arranged to be inclined back to back, the rear side surface of the front block is the front inclined surface, and the front side surface of the rear block is the rear inclined surface. The lower end of the front block and the lower end of the rear block are integrally connected with the lower block and are arranged at an angle, and the distance between the front block and the rear block is the clamping groove; when in use, the upper support block 731 and the lower support block 43 are disassembled and installed. When steel pipes of different sizes are needed, the upper support block 1 can also be replaced, which has a wider range of adaptability; and the lower block can move back and forth in the installation groove under the action of the lateral adjustment rod 7321 to adapt to the placement position of the steel pipe.

[0030] The above-mentioned mounting seats are provided at both axial ends of the hosting rod 71, and there is a translation distance between the above-mentioned cutting fixture 22 and the mounting seat for the hosting rod 71 to translate left and right. The axial end of the hosting rod 71 is in the clamping groove, and the hosting rod 71 has a first plate body 711 and a second plate body 712. The lower end of the first plate body 711 is integrally connected with the lower end of the second plate body 712, and the first plate body 711 and the second plate body 712 form a strip placement groove with an open top surface, a left end surface and a right end surface. The part of the first plate body 711 located in the clamping groove is in contact with the front inclined surface, and the second plate body 712 is located The part in the clamping groove fits in with the rear inclined surface; when in use, the two ends of the trustee rod 71 are respectively placed in the clamping grooves of the two support seats 73, the first plate 711 of the trustee rod 71 fits in with the rear side surface of the front block, and the second plate 712 of the trustee rod 71 fits in with the front side surface of the rear block. The clamping groove is a V-shaped groove, which also enables the trustee rod 71 and the groove wall of the clamping groove to fit more closely together; in addition, there is a translation distance between the trustee device 7 and the cutting fixture 22. When the two cutting seats 2 move relative to each other, the trustee rod 71 will extend into the range of the translation distance, thereby adapting to the cutting of steel pipes of different lengths.

[0031] The support seat 73 is located on the front inclined surface and is equipped with a front pressure wheel 733 facing the rear inclined surface and arranged opposite to the second plate body 712. The wheel center line of the front pressure wheel 733 is perpendicular to the front inclined surface. The support seat 73 is located on the rear inclined surface and is equipped with a rear pressure wheel 734 facing the front inclined surface and arranged opposite to the first plate body 711. The wheel center line of the rear pressure wheel 734 is perpendicular to the rear inclined surface, and the front pressure wheel 733 and the rear pressure wheel 734 are staggered left and right. Specifically, the left end of the top surface of the front block body is obliquely extended upward with a front extension block 7311 in the same direction of inclination as the front block, that is, the rear side surface of the front extension block 7311 is flush with the rear side surface of the front block, and the top surface of the front extension block 7311 is recessed downward and provided with a groove extending along the inclination direction of the front extension block 7311. The front slot is a strip-shaped structure, and the rear side surface of the front extension block 7311 is provided with a front insertion port that is connected to the front slot and reaches the top surface of the front extension block 7311. The diameter of the front insertion port is smaller than the slot width of the front slot. A front wheel axle (not shown in the figure) is fixed at the axis center of the above-mentioned front pressure wheel 733. The front wheel axle is arranged vertically to the front extension block 7311. The end of the front wheel axle toward the front extension block 7311 extends into the front slot through the front insertion port, and is installed in the front slot by the front limit block, that is, the above-mentioned front limit block has a front diameter expansion block embedded in the front slot and a front diameter reduction block embedded in the front insertion port. The front limit block is provided with a front tightening hole (not shown in the figure) that passes through the front diameter expansion block and the front diameter reduction block, and the end of the above-mentioned front wheel axle is tightly fitted through the above-mentioned front tightening hole.

[0032] The right end of the top surface of the rear block body is obliquely extended upward with a rear extension block 7312 in the same inclination direction as the rear block body, that is, the front side surface of the rear extension block 7312 is flush with the front side surface of the rear block body, and the top surface of the rear extension block 7312 is recessed downward with a rear slot extending along the inclination direction of the rear extension block 7312, the rear slot is a strip-shaped structure, and the front side surface of the rear extension block 7312 is provided with a rear insertion port that is connected to the rear slot and leads to the top surface of the rear extension block 7312, the diameter of the rear insertion port is smaller than the slot width of the rear slot, and a rear pressure wheel 734 is fixed at the axis center thereof. The wheel axle, the rear wheel axle and the rear extension block 7312 are arranged vertically, the end of the rear wheel axle toward the rear extension block 7312 extends into the rear slot through the rear insertion port, and is limited and installed in the rear slot by the rear limit block (not shown in the figure), that is, the rear limit block has a rear diameter expansion block embedded in the rear slot and a rear diameter reduction block embedded in the rear insertion port, and the rear limit block is provided with a rear tightening hole that passes through the rear diameter expansion block and the rear diameter reduction block, and the end of the above-mentioned rear wheel axle is tightly fitted through the above-mentioned rear tightening hole; during assembly, the front wheel axle of the front pressure wheel 733 is installed together with the front limit block through the front tightening hole, and then the front expansion block of the front limit block is tightened. The diameter block 61 extends into the front slot, and the front diameter reducing block of the front limit block extends into the front insertion opening. At this time, the front wheel shaft part is within the range of the front insertion opening and can move in the front slot by using the front limit block. Similarly, the rear pressure wheel 734 is embedded in the rear slot and moved in the rear slot by using the rear limit block. During use, the movement of the front pressure wheel 733 in the front slot or the movement of the rear pressure wheel 734 in the rear slot can be used to adjust the distance between the front pressure wheel 733 and the second plate 712 and the distance between the rear pressure wheel 734 and the first plate 711 according to the size of the steel pipe. The wheel surfaces of the front pressure wheel 733 and the rear pressure wheel 734 can fit with the outer side wall of the steel pipe, so that the steel pipe can be limited in the strip placement groove by the front pressure wheel 733 and the rear pressure wheel 734 during the translation process, and the guiding effect of the wheel surfaces of the front pressure wheel 733 and the rear pressure wheel 734 can be used to make the steel pipe move more smoothly in the strip placement groove; furthermore, when the relative movement range of the two cutting seats is large and the two ends of the pipe dragging rod exceed the translation distance, the front pressure wheel 733 and the rear pressure wheel 734 are moved out of the strip placement groove, and the pipe hosting rod can be replaced to adapt to steel pipes of different cutting lengths.

[0033] The double-headed saw machine of the present invention, when in use, synchronously drives the two driving motors 31, and the output shaft of the driving motor 31 drives the gear shaft 321 to rotate, thereby driving the gear 32 to rotate in the mounting sleeve. Under the meshing action of the gear 32 and the rack 33, the gear 32 rotates on the front side of the rack 33 and moves left and right along the rack 33. At the same time, under the action of the upper bearing 3211 and the lower bearing 3212 in the mounting sleeve 4, the gear 32 can be limited within the range of the lower sleeve 42, and is not easy to deviate up and down, so that the gear 32 can better mesh with the rack 33, thereby driving the cutting seat 2 to move left and right on the frame 1. , adjust the relative movement distance of the two driving motors in advance, that is, the cutting spacing for the steel pipe can be controlled, and in the translation process of the two cutting seats 2, the connection between the sliding block 5 and the cutting seat 2 also makes the sliding block relatively translated, and moves relative to each other on the guide rod 12, thereby driving the cutting seat to translate left and right in the direction of the guide rod 12, and not easily deviating from the track. When the two cutting seats 2 move relative to each other, the steel pipe is limited in the strip placement groove under the action of the hosting device 7, and the steel pipe to be cut and the cut steel pipe can be translated more smoothly; compared with the prior art, there is no connecting rod between the two cutting seats, and the distance between the two cutting seats is relatively large. The distance between the two cutting seats 2 is determined by the distance that the sliding drive device 3 drives the cutting seat 2 to move. The length of the steel pipe to be cut can be determined by controlling the relative moving distance of the two cutting seats, which can adapt to various required sizes and does not require disassembly of other components, thereby reducing processing costs. At the same time, the two cutting seats 2 can run at the same time and can also cut both ends of the steel pipe at the same time. After cutting both ends of the steel pipe, the cut steel pipe can be directly pushed out to cut the next steel pipe to be cut. There is no need to wait for the cutting position of the other end to arrive after cutting at one end, thereby enhancing processing efficiency. In addition, the two cutting fixtures can cut the steel pipe After cutting, when the steel pipe to be cut pushes the cut steel pipe out horizontally, the cut steel pipe can move horizontally in the strip placement groove of the tube rod and is not easily offset under the limitation of the front pressure wheel and the rear pressure wheel, so that the cut steel pipe will not be in a suspended state and easily tilted downward, and the cut steel pipe is placed horizontally in the tube rod, so that the steel pipe to be cut and the cut steel pipe can be relatively positioned, so that the cut steel pipe between the two stainless steel pipe cutting clamps can be sent out more smoothly. Furthermore, with the cooperation of the guide rod 12 and the sliding block 5, the cutting seat 2 is not easily offset when moving left and right, so that the steel pipe can be cut more accurately.

[0034] The top right side of the front block is preferably locked with a front pressure block 7313, that is, the front pressure block 7313 is on the right side of the front extension block 7311, the bottom surface of the front pressure block 7313 is in contact with the top surface of the front block, and a part of the front pressure block 7313 is pressed tightly against the top surface of the first plate 11 of the hosting rod 1, and a front strip hole (not shown in the figure) is provided on the front pressure block 7313 that passes through the inclined direction of the front block, and a front screw hole (not shown in the figure) is provided on the right side of the top surface of the front block at the position corresponding to the front strip hole, and the front pressure block 7313 is locked on the right side of the top surface of the front block by fixing bolts passing through the front strip hole and the front screw hole in sequence; the top left side of the rear block is locked with a rear pressure block (not shown in the figure), that is, the rear pressure block is on the left side of the rear extension block 7312, and the bottom surface of the rear pressure block is in contact with the top surface of the rear block. The locking cam 7313 is fixed to the left of the second plate 712 and the locking cam 7314 is fixed to the left of the second plate 712 and the locking cam 7315 is fixed to the left of the second plate 712 and the locking cam 7316 is fixed to the left of the second plate 712 and the locking cam 7317 is fixed to the right of the second plate 712 and the locking cam 7317 is fixed to the left of the second plate 712 and the locking cam 7316 is fixed to the left of the second plate 712 and the locking cam 7316 is fixed to the right of the second plate 712 and the locking cam 7316 is fixed to the

[0035] The product form of the present invention is not limited to the illustrations and embodiments of this case. Any appropriate changes or modifications made by anyone with similar ideas should be deemed to be within the patent scope of the present invention.

Claims

1. A double-headed saw comprising a frame and a cutting seat, wherein two cutting seats are slidably mounted on the frame, each cutting seat having a cutting fixture, and a sliding drive device provided on the frame for driving the two cutting seats to slide synchronously. The sliding drive device comprises a drive motor, a gear, and a rack. The drive motor is vertically arranged, the gear is sleeved on the output shaft of the drive motor, and the rack is mounted on the frame, with the teeth of the rack meshing with the gear. The sliding direction of the cutting seat is the left-right direction; characterized in that: The above-mentioned drive motor and the above-mentioned gear are each provided with two, and the two drive motors are respectively mounted on the cutting seat, and the output shaft of the drive motor is located outside the front side or rear side of the frame, and the output shaft of the drive motor is arranged relative to the rack in front and back, and the two gears are correspondingly mounted on the output shafts of the two drive motors and are engaged with the rack together. A guide rod extending in the left and right direction and located below the two cutting seats is provided outside the above-mentioned frame, and a sliding block slidably mounted on the guide rod is installed on the two cutting seats; A trustee device for placing the steel pipe is provided between the two cutting seats, and the trustee device is located between the two cutting fixtures, and the trustee device has a mounting seat and a trustee rod, and the above-mentioned mounting seats are provided at both axial ends of the trustee rod, and the mounting seat has a base for being fixedly mounted on the cutting seat and a support seat that can adjust the height up and down, and the support seat is provided with two inclined surfaces that are relatively inclined front and back, and the two inclined surfaces are divided into a front inclined surface and a rear inclined surface, and the front inclined surface and the rear inclined surface constitute a clamping groove that gradually shrinks from top to bottom, and the axial end of the trustee rod is in the clamping groove, and the trustee rod has a first plate body and a second plate body, and the lower end of the first plate body is aligned with the lower end of the second plate body. The lower end portion is integrally formed and connected, and the first plate body and the second plate body form a strip-shaped placement groove with an open top surface, left end surface and right end surface. The part of the first plate body located in the clamping groove is in contact with the front inclined surface, and the part of the second plate body located in the clamping groove is in contact with the rear inclined surface. The support seat is located on the front inclined surface and is equipped with a front pressure wheel facing the rear inclined surface and arranged opposite to the second plate body. The wheel center line of the front pressure wheel is perpendicular to the front inclined surface. The support seat is located on the rear inclined surface and is equipped with a rear pressure wheel facing the front inclined surface and arranged opposite to the first plate body. The wheel center line of the rear pressure wheel is perpendicular to the rear inclined surface, and the front pressure wheel and the rear pressure wheel are staggered left and right.

2. The double-head sawing machine according to claim 1, characterized in that: The rack is mounted on the front side of the frame, and the meshing teeth of the rack are arranged forward. Both of the cutting seats have a suspended mounting plate extending out of the front side of the frame and above the rack. The above-mentioned drive motor is upright mounted on the top surface of the suspended mounting plate, and the output end of the above-mentioned drive motor passes downward through the suspended mounting plate. A mounting sleeve is fixed on the bottom surface of the suspended mounting plate, and the mounting sleeve is outside the rack and is arranged opposite to the rack front and back. An exposed window is provided on the side wall of the above-mentioned mounting sleeve. The above-mentioned gear is rotatably mounted in the mounting sleeve through the gear shaft, and a partial part of the gear extends out of the exposed window. The output shaft of the above-mentioned drive motor extends into the mounting sleeve and is connected with the gear shaft.

3. The double-head sawing machine according to claim 2, characterized in that: The mounting sleeve comprises an upper sleeve, a lower sleeve and a lower support block. The upper sleeve is a hollow cylindrical structure that passes through from top to bottom, and the lower sleeve is a hollow cylindrical structure with an open top. The upper end of the upper sleeve is connected to the suspended mounting plate, and the upper end of the lower sleeve is connected to the lower end of the upper sleeve. The inner diameter of the lower sleeve is smaller than the inner diameter of the upper sleeve. The lower support block is below the lower sleeve. The upper end of the gear shaft is in the upper sleeve, and the upper end sleeve of the gear shaft is inherently mounted on the upper bearing in the upper sleeve. The gear is in the lower sleeve, and the outer wall of the lower sleeve is provided with a An extension opening extending in the up-down direction and allowing a local part of the gear to extend out is provided, and this extension opening is the exposed window. A through-opening communicating with the hollow space of the lower sleeve is provided on the bottom surface of the lower sleeve. The lower end of the gear shaft is in the lower sleeve and passes through the through-opening, and a lower bearing installed in the through-opening is sleeved on the outside of the gear shaft at the through-opening. The lower support block is locked together with the bottom surface of the lower sleeve, and a closed-loop protrusion extending into the through-opening is protruded upward on the top surface of the lower support block, and the lower bearing is pressed against the top surface of the closed-loop protrusion, and the lower end portion of the gear shaft extends into the closed-loop protrusion.

4. The double-head sawing machine according to claim 2, characterized in that: Buffer blocks are respectively provided on the left and right sides of the bottom surface of the cutting seat, and anti-collision blocks that limit the buffer blocks from crossing are provided at the left and right ends of the top surface of the above-mentioned frame, and the buffer block has an upper connecting plate and a lower buffer rod, the upper connecting plate is locked together with the bottom surface of the lower base plate, the lower buffer rod is uprightly arranged below the upper connecting plate, and the lower end portion of the lower buffer rod is a convex arc structure convex downward, the top surface of the anti-collision block is an inclined surface inclined downward, and the inclined surfaces of the two anti-collision blocks constitute a horn structure gradually expanding from bottom to top, the lower buffer rod on the two buffer blocks is between the two inclined surfaces, and the highest height of the anti-collision block in the up and down direction is greater than the distance between the lower buffer rod and the bottom of the mounting groove, and the length of the rack in the left and right directions is longer than or equal to the distance between the two anti-collision blocks.

5. The double-head sawing machine according to claim 1, characterized in that: The sliding block is installed together with the bottom surface of the cutting seat. The two sliding blocks are arranged opposite to each other on the left and right sides, and both sliding blocks are provided with a sliding groove for the guide rod to slide in.

6. The double-head sawing machine according to claim 5, characterized in that: The sliding block comprises a fixing portion, a mounting portion and a sleeve portion, the fixing portion is locked together with the bottom surface of the cutting seat, the two mounting portions are located between the two fixing portions, the bottom surfaces of the fixing portion and the mounting portion are both recessed upwardly with an insertion groove that penetrates and extends in the left and right directions, the insertion groove of the fixing portion and the insertion groove of the mounting portion are arranged opposite to each other on the left and right, the mounting portion is provided with an embedding groove that penetrates in the up and down directions, the sleeve portion is embedded in the range of the embedding groove, the sleeve portion has an upper and lower tightening block and a lower tightening block that are arranged opposite to each other up and down, the upper and lower tightening blocks are locked together, the upper and lower tightening blocks are recessed on the opposite side of the tightening block and the lower tightening block into which the guide rod is inserted, the guide groove and the insertion groove are arranged opposite to and communicated with each other, and the guide groove and the insertion groove constitute the sliding groove.

7. The double-head sawing machine according to claim 1, characterized in that: There is a translation distance between the cutting fixture and the mounting seat for the pipe rod to translate left and right.

8. The double-head sawing machine according to claim 1, characterized in that: The base comprises a lower side plate and an upper top plate, the lower side plate is located on one side of the bottom surface of the upper top plate and are arranged perpendicular to each other, the lower side plate is installed together with the cutting seat, the support seat is above the upper top plate, and a vertical adjustment rod passing through the upper top plate is installed on the upper top plate, the upper end of the above-mentioned vertical adjustment rod extends into the support seat and is connected to the support seat, and a limit head is provided on the lower end of the vertical adjustment rod to limit the vertical adjustment rod below the bottom surface of the upper top plate, and the lower end of the above-mentioned vertical adjustment rod is externally screwed with a locking nut between the upper top plate and the limit head, and a guide rod that tightly fits and passes through the upper top plate is erected on the bottom surface of the above-mentioned support seat.

9. The double-head sawing machine according to claim 8, characterized in that: The above-mentioned support seat comprises an upper support block and a lower support block, the lower support block is a rectangular block extending in the left and right directions, the top surface of the lower support block is recessed downwardly and provided with a mounting groove running through the left and right directions, the upper support block comprises a lower block, a front block and a rear block, the lower block is placed in the mounting groove in a manner that can be translated back and forth, and the lower support block is provided with a lateral adjustment rod for controlling the front and rear adjustment of the lower block, the front block and the rear block are both above the lower support block, the front block and the rear block are arranged to be tilted back to back, the rear side surface of the front block is the front inclined surface, and the front side surface of the rear block is the rear inclined surface, the lower end portion of the front block and the lower end portion of the rear block are both integrally connected to the lower block and are arranged at an angle, and the spacing between the front block and the rear block is the clamping groove.

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