A quick shearing positioning device and method for bar processing

Abstract

The present invention discloses a quick shearing and positioning device for bar processing, comprising: a support frame unit, which comprises a shearing and positioning platform and two supporting blocks fixedly arranged on both sides of the center of the side wall of the shearing and positioning platform; a shearing unit, which comprises two supporting plates fixedly arranged on both sides of the side wall of the shearing and positioning platform and a top plate longitudinally erected on the top of the supporting plate; a quick shearing and positioning method for bar processing, comprising the following steps: S1: placing the metal bar to be sheared on the supporting block through two traction rollers, adjusting the position of the abutting plate according to the required shearing length, and controlling the top of the metal bar to abut against the abutting plate; S2: controlling the telescopic cylinder piston rod to drive the shearing knife to move downward, after each shearing of the metal bar is completed. The present invention does not require the staff to spray and cool the shearing knife based on experience, and can pre-position the metal bar before shearing while extending the normal service life of the shearing knife.

Description

Technical Field

[0001] The invention relates to the technical field of metal bar shearing, and in particular to a quick shearing and positioning device and method for bar processing. Background Art

[0002] Metal bar is a metal material with a long length and regular cross-sectional shape. Common cross-sectional shapes include round, square, rectangular, hexagonal, etc. Metal bar is usually made of metal materials such as steel, aluminum, copper, etc. through hot processing (such as forging, rolling) or cold processing (such as cold drawing, cold rolling). In the subsequent processing of metal bars, corresponding shearing and positioning equipment is required to cut them into specified lengths for subsequent applications.

[0003] The shear positioning equipment for bar processing currently used in the field of metal bar shearing only supports the positioning and shearing process of the metal bar during actual use. Since the shear knife surface will overheat after frequent shearing, the existing technology mostly relies on the staff to spray cool it based on their work experience. This method is prone to untimely cooling, which in turn shortens the normal service life of the shear knife. Therefore, it is necessary to design a quick shear positioning equipment and method for bar processing to solve the above problem. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing quick shearing and positioning equipment and method for bar processing, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a quick shearing and positioning device and method for rod processing, which is suitable for solving the problem that the existing technology of cooling it is mostly carried out by staff relying on work experience to spray cool it, which is prone to untimely cooling, thereby shortening the normal service life of the shearing tool.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a quick shearing and positioning device for bar processing, comprising:

[0008] A support frame unit, comprising a shearing positioning platform and two supporting pads fixedly arranged on both sides of the center of the side wall of the shearing positioning platform, a plurality of evenly distributed metal bars are mounted on the supporting pads, and the support frame unit also comprises a bar traction assembly for driving the metal bars to move;

[0009] The shearing unit comprises two support plates fixedly arranged on both sides of the side walls of the shearing positioning platform and a top plate longitudinally mounted on the top of the support plates, a telescopic cylinder is fixedly connected to the center of the upper side wall of the top plate, the lower end of the piston rod of the telescopic cylinder penetrates downwardly through the top plate and is fixedly connected to a lifting plate, a shearing knife is fixedly installed at the center of the lower side wall of the lifting plate, and a shearing seat matching the shearing knife is fixedly arranged on the shearing positioning platform;

[0010] The positioning spray unit includes two liquid storage boxes fixedly arranged on both sides of the lower side wall of the lifting plate and a piston cylinder fixedly arranged in the liquid storage box, the inner wall of the piston cylinder is vertically sealed and slidably connected with a first piston plate, the first piston plate is fixedly connected with a connecting plate by a pressure rod, and the lower end of the pressure rod is sealed and slidably connected with the lower inner wall of the liquid storage box, each lower side wall of the connecting plate is fixedly provided with a positioning pressure block matching the metal rod, a plurality of first symmetrically positioned one-way liquid replenishing valves are inlaid and installed at the lower end of the side wall of the piston cylinder, a liquid through pipe is fixedly connected to the lower part of the inner cavity of the piston cylinder, the liquid through pipe runs through the liquid storage box outward, and a second one-way liquid replenishing valve is fixedly installed at the connection between the liquid through pipe and the piston cylinder, the positioning spray unit also includes a quantitative spray component for periodically performing quantitative spray cooling on the shear knife.

[0011] As a preferred solution of the quick shearing and positioning equipment for rod processing described in the present invention, the quantitative spray assembly includes a quantitative box fixedly connected to the liquid passing pipe and a second piston plate vertically sealed and slidably connected to the inner wall of the quantitative box, a telescopic rod is fixedly connected to the lower side wall of the second piston plate and the center of the lower inner wall of the quantitative box, an extrusion spring is sleeved on the telescopic rod, a symmetrical extrusion trigger switch is fixedly connected to the lower part of the side wall of the quantitative box, extrusion protrusions matching the extrusion trigger switch are fixedly connected to the two sides of the lower side wall of the second piston plate through connecting arms, the side wall of the quantitative box is fixedly connected to a connecting pipe, the connecting pipe is fixedly connected to multiple groups of evenly distributed spray heads, the side wall of the quantitative box is fixedly provided with a water pump connected to the connecting pipe, and the extrusion trigger switch is used to control the start of the water pump.

[0012] As a preferred scheme of the quick shearing positioning device for rod processing described in the present invention, the positioning device also includes an extrusion chip blowing unit, which includes two pairs of hollow outer cylinders fixedly arranged at the two ends of the lower side wall of the lifting plate and a third piston plate vertically sealed and slidably connected to the inner wall of the hollow outer cylinder, each pair of the hollow outer cylinders is symmetrically arranged on both sides of the liquid storage box, the lower side wall of the third piston plate and the upper side wall of the connecting plate are fixedly connected by an inner rod, the inner rod penetrates the lower inner wall of the hollow outer cylinder, and an air blowing channel is arranged in the inner rod and the connecting plate, and a first one-way vent valve connected to the air blowing channel is inlaid at the center of the third piston plate, and a blowing hood connected to the air blowing channel is fixedly connected to the side wall of the connecting plate, and a second one-way vent valve is inlaid on the upper part of the side wall of the hollow outer cylinder, and each of the hollow outer cylinders and the outer side of the inner rod are sleeved with a corresponding return spring, and the two ends of the return spring are respectively fixedly connected to the lower side wall of the lifting plate and the upper side wall of the connecting plate.

[0013] As a preferred solution of the quick shearing and positioning equipment for rod processing described in the present invention, the positioning equipment also includes a tightening and positioning unit, which includes two pairs of second fixing ears fixedly arranged on both sides of the side walls of the shearing and positioning platform, and a threaded rod is rotatably connected between each pair of the second fixing ears, and each of the threaded rods passes through the second fixing ear and a fixed sleeve is provided with a transmission wheel, and the two transmission wheels are connected by a transmission belt, and a servo motor is fixedly installed on one of the second fixing ears, and the output shaft of the servo motor is fixedly connected to the top of one of the threaded rods, and a threaded sleeve is threadedly connected to the threaded rod, and a tightening plate is fixedly connected between the two threaded sleeves.

[0014] As a preferred solution of the quick shearing and positioning equipment for rod processing described in the present invention, wherein: a guide rod is fixedly connected between each pair of the second fixed ears, a guide sleeve is provided on the sliding sleeve of the guide rod, each of the guide sleeves is fixedly connected to the corresponding threaded sleeve, and the two guide sleeves are fixedly connected to the clamping plate.

[0015] As a preferred solution of the quick shearing and positioning equipment for bar processing described in the present invention, wherein: the bar traction assembly includes two first fixed ears fixedly arranged on the front end of the side wall of the shearing and positioning platform, and a symmetrical traction roller is rotatably connected between the two first fixed ears, and the two traction rollers are respectively abutted against the upper and lower side walls of multiple metal bars, and each of the traction rollers is outwardly penetrated through the first fixed ear and fixedly sleeved with a corresponding circular gear, and the two circular gears are meshed, and a traction motor is fixedly installed on one of the first fixed ears, and the output shaft of the traction motor passes through the first fixed ear and is fixedly connected to the top of one of the traction rollers.

[0016] As a preferred solution of the quick shearing and positioning equipment for rod processing described in the present invention, the outer surface of each traction roller is padded with a layer of frosted pad with uniform thickness, and each circular gear is provided with uniformly distributed anti-slip patterns.

[0017] As a preferred solution of the quick shearing and positioning equipment for rod processing described in the present invention, wherein: the upper side wall of the lifting plate is fixedly connected with symmetrically positioned vertical guide rods, each of the vertical guide rods is arranged to penetrate the top plate upward, and an anti-slip block is fixedly connected to the top of the vertical guide rod.

[0018] As a preferred solution of the quick shearing and positioning device for bar processing described in the present invention, an observation window is embedded in the side wall of the quantitative box, and a sealing ring is provided at the place where the quantitative box and the observation window abut.

[0019] A quick shear positioning method for bar processing, the positioning method is applicable to any of the above positioning devices, and the positioning method comprises the following steps:

[0020] S1: Place the metal bar to be sheared through two traction rollers on the supporting pad, adjust the position of the abutment plate according to the required shearing length, and control the top of the metal bar to abut against the abutment plate;

[0021] S2: Control the piston rod of the telescopic cylinder to drive the shear knife to move downward. After each shearing of the metal bar, the pressure rod will squeeze a certain amount of coolant into the quantitative box;

[0022] S3: After the shearing knife completes the Nth shearing of the metal bar, the temperature of the shearing knife increases, the coolant in the metering box reaches the maximum value, and the extrusion trigger switch controls the spray head to spray cooling on the shearing knife.

[0023] The beneficial effects of the present invention are as follows: the metal bar to be sheared is placed on the supporting pad through two traction rollers, the top end of the metal bar is controlled to abut against the pressing plate, and in the process of the shearing knife moving downward, the first piston plate fixedly arranged at the top end of the pressure rod moves upward in the piston cylinder, and the coolant in the liquid storage box is drawn into the piston cylinder. When the shearing knife completes the shearing of the metal bar, the telescopic cylinder piston rod drives the lifting plate and the shearing knife to reset upward, and the first piston plate vertically sealed and slidably connected to the inner wall of the piston cylinder presses the cooling liquid in the piston cylinder into the liquid pipe and then into the quantitative box. When the shearing knife completes N times of shearing of the metal bar, the amount of coolant in the quantitative box reaches a critical value, and the coolant squeezes the second piston plate to move downward, and the squeezing block squeezes the squeezing trigger switch accordingly, and the squeezing trigger switch controls the water pump to start, and the coolant in the quantitative box can be fully sprayed on the shearing knife that is gradually reset from bottom to top through the connecting pipe and multiple spray heads, without the need for the staff to spray and cool the shearing knife based on experience, and the metal bar can be pre-positioned before shearing while extending the normal service life of the shearing knife.

[0024] When the telescopic cylinder piston rod controls the lifting plate and the shear knife to move downward, the hollow outer cylinder fixed at the lower end of the lifting plate descends relative to the inner rod, and the third piston plate which is vertically sealed and slidably connected to the inner wall of the hollow outer cylinder presses the gas stored in the hollow outer cylinder into the blowing channel, and then blows off the metal iron filings attached to the surface of the gradually moving downward shear knife through the blowing hood, thereby ensuring the shearing effect of the shear knife on the metal bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0026] Figure 1 This is a schematic diagram of the overall structure of a quick shearing and positioning device for bar processing proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the shearing unit structure of a quick shearing and positioning device for bar processing proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the connection structure of a lifting plate, a liquid storage box and a spray head of a quick shearing and positioning device for bar processing proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a positioning spray unit of a quick shear positioning device for bar processing proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of a quantitative spraying component of a quick shearing and positioning device for bar processing proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the coordination structure of a liquid storage box, a quantitative box and a plurality of spray heads of a quick shearing and positioning device for bar processing proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of an extrusion chip blowing unit of a quick shearing and positioning device for bar processing proposed by the present invention;

[0033] Figure 8 This is a schematic structural diagram of a tight positioning unit of a quick shear positioning device for bar processing proposed by the present invention;

[0034] Fig. 9 The present invention is a schematic diagram of the steps of a quick shearing and positioning method for bar processing.

[0035] Description of the drawings: 100 support frame unit, 101 shearing positioning table, 102 supporting pad, 103 metal rod, 104 rod traction assembly, 104a first fixed ear, 104b traction roller, 104c circular gear, 104d traction motor, 200 shearing unit, 201 support plate, 202 top plate, 203 telescopic cylinder, 204 lifting plate, 205 shearing knife, 206 shearing seat, 207 vertical guide rod, 208 anti-slip block, 300 positioning spray unit, 301 liquid storage box, 302 piston cylinder, 303 first piston plate, 304 pressure rod, 305 first one-way liquid replenishing valve, 306 liquid pipe, 307 quantitative spray assembly, 307a quantitative box, 307b second active Plug plate, 307c telescopic rod, 307d extrusion spring, 307e extrusion trigger switch, 307f extrusion protrusion, 307g connecting pipe, 307h water pump, 307i observation window, 307j sprinkler head, 308 connecting plate, 309 positioning block, 400 extrusion chip blowing unit, 401 hollow outer cylinder, 402 third piston plate, 403 inner rod, 404 air blowing channel, 405 first one-way air valve, 406 air blowing hood, 407 second one-way air valve, 408 return spring, 500 pressing positioning unit, 501 second fixing ear, 502 threaded rod, 503 transmission wheel, 504 servo motor, 505 threaded sleeve, 506 pressing plate, 507 guide rod, 508 guide sleeve. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0040] Embodiment 1

[0041] Reference Figure 1-Figure 9 , which is an embodiment of the present invention, provides a quick shearing and positioning device for bar processing, including: a support frame unit 100, a shearing unit 200, a positioning spray unit 300 and an extrusion and chip blowing unit 400.

[0042] The support frame unit 100 includes a shearing positioning platform 101 and two supporting pads 102 fixedly arranged on both sides of the center of the upper side wall of the shearing positioning platform 101, and a plurality of evenly distributed metal bars 103 are mounted on the supporting pads 102. The support frame unit 100 also includes a bar pulling assembly 104 for driving the metal bars 103 to move;

[0043] Secondly, the bar traction assembly 104 includes two first fixed ears 104a fixedly arranged at the front end of the upper side wall of the shear positioning platform 101, and a symmetrical traction roller 104b is rotatably connected between the two first fixed ears 104a, and the outer surface of each traction roller 104b is padded with a layer of frosting pad with uniform thickness. The setting of the frosting pad increases the friction between the traction roller 104b and the metal bar 103, thereby improving the traction stability of the traction roller 104b on the metal bar 103, and each circular gear 104c is provided with a uniformly distributed Anti-skid patterns are provided to improve the meshing stability of the two circular gears 104c. The two traction rollers 104b are respectively against the upper and lower side walls of the plurality of metal bars 103. Each traction roller 104b penetrates outwardly through the first fixed ear 104a and is fixedly sleeved with a corresponding circular gear 104c. The two circular gears 104c are meshed. A traction motor 104d is fixedly mounted on one of the first fixed ears 104a. The output shaft of the traction motor 104d penetrates the first fixed ear 104a and is fixedly connected to the top of one of the traction rollers 104b.

[0044] Furthermore, the shearing unit 200 includes two support plates 201 fixedly arranged on both sides of the upper side walls of the shearing positioning platform 101 and a top plate 202 longitudinally mounted on the top of the support plate 201, a telescopic cylinder 203 is fixedly connected to the center of the upper side wall of the top plate 202, the lower end of the piston rod of the telescopic cylinder 203 downwardly penetrates the top plate 202 and is fixedly connected to a lifting plate 204, and the upper side wall of the lifting plate 204 is fixedly connected to vertical guide rods 207 with symmetrical positions, each vertical guide rod 207 is arranged to penetrate the top plate 202 upward, and an anti-drop block 208 is fixedly connected to the top of the vertical guide rod 207, through The vertical guide rod 207 is provided to guide and limit the lifting plate 204 during the lifting process, thereby improving the shearing accuracy of the shearing knife 205 on the metal bar 103. The anti-slip block 208 is provided to limit the lifting stroke of the lifting plate 204. The shearing knife 205 is fixedly installed at the center of the lower side wall of the lifting plate 204, and a shearing seat 206 matching the shearing knife 205 is fixedly provided on the shearing positioning platform 101. The shearing knife 205 and the telescopic cylinder 203 are inherent components of the metal bar 103 shearing device, and their specific structures and working principles are not introduced in detail here.

[0045] Furthermore, the positioning spray unit 300 includes two liquid storage boxes 301 fixedly arranged on both sides of the lower side wall of the lifting plate 204 and a piston cylinder 302 fixedly arranged in the liquid storage box 301. The liquid storage box 301 is filled with a sufficient amount of coolant for cooling the shearing knife 205. The inner wall of the piston cylinder 302 is vertically sealed and slidably connected with a first piston plate 303. The first piston plate 303 is fixedly connected with a connecting plate 308 through a pressure rod 304, and the lower end of the pressure rod 304 is sealed and slidably connected to the lower inner wall of the liquid storage box 301. The lower side wall of each connecting plate 308 is fixedly provided with a positioning pressure block 309 matching the metal bar 103. The lower end of the side wall of the piston cylinder 302 is inlaid with a plurality of position A symmetrical first one-way refill valve 305 is fixedly connected to a liquid passage 306 at the lower part of the inner cavity of the piston cylinder 302, and the liquid passage 306 is arranged to pass through the liquid storage box 301 outwardly, and a second one-way refill valve is fixedly installed at the connection between the liquid passage 306 and the piston cylinder 302. In the present invention, the first one-way refill valve 305 and the second one-way refill valve are both devices commonly used for liquid flow control, which can ensure that the liquid flows in a single direction and automatically close or prevent the flow in the opposite direction. It belongs to a very mature prior art, and its working principle is not introduced in detail here. The positioning spray unit 300 also includes a quantitative spray component 307 for periodically spraying and cooling the shear knife 205.

[0046] Furthermore, the quantitative spray assembly 307 includes a quantitative box 307a fixedly connected to the liquid passage 306 and a second piston plate 307b vertically sealed and slidably connected to the inner wall of the quantitative box 307a. An observation window 307i is inlaid on the side wall of the quantitative box 307a, and a sealing ring is provided at the place where the quantitative box 307a and the observation window 307i abut each other. The setting of the observation window 307i facilitates the staff to observe the working conditions of the various components in the quantitative box 307a. The setting of the sealing ring improves the sealing performance of the connection between the observation window 307i and the side wall of the quantitative box 307a. The lower side wall of the second piston plate 307b is fixedly connected to the center of the lower inner wall of the quantitative box 307a. A telescopic rod 307c is fixedly connected, and an extrusion spring 307d is sleeved on the telescopic rod 307c. A symmetrically positioned extrusion trigger switch 307e is fixedly connected to the lower part of the side wall of the quantitative box 307a. Extrusion protrusions 307f matching the extrusion trigger switch 307e are fixedly connected on both sides of the lower side wall of the second piston plate 307b through connecting arms. A connecting pipe 307g is fixedly connected to the side wall of the quantitative box 307a. The connecting pipe 307g is fixedly connected to multiple groups of evenly distributed sprinkler heads 307j. A water pump 307h connected to the connecting pipe 307g is fixedly set on the side wall of the quantitative box 307a. The extrusion trigger switch 307e is used to control the start of the water pump 307h.

[0047] Finally, the extrusion chip blowing unit 400 includes two pairs of hollow outer cylinders 401 fixedly arranged at both ends of the lower side wall of the lifting plate 204 and a third piston plate 402 vertically sealed and slidably connected to the inner wall of the hollow outer cylinder 401. Each pair of hollow outer cylinders 401 is symmetrically arranged on both sides of the liquid storage box 301. The lower side wall of the third piston plate 402 and the upper side wall of the connecting plate 308 are fixedly connected by an inner rod 403. The inner rod 403 penetrates the lower inner wall of the hollow outer cylinder 401. An air duct 404 is arranged in the inner rod 403 and the connecting plate 308. A first one-way vent valve 405 connected to the air duct 404 is inlaid at the center of the third piston plate 402. The side wall of the plate 308 is fixedly connected to a blowing hood 406 connected to the blowing channel 404, and a second one-way air valve 407 is embedded in the upper part of the side wall of the hollow outer cylinder 401. In the present invention, the first one-way air valve 405 and the second one-way air valve 407 are both devices for gas flow control, which can ensure that the gas flows in a single direction and automatically close or prevent the flow in the opposite direction. The working principle is not introduced in detail here. Each hollow outer cylinder 401 and the outer side of the inner rod 403 are sleeved with a corresponding return spring 408, and the two ends of the return spring 408 are respectively fixedly connected to the lower side wall of the lifting plate 204 and the upper side wall of the connecting plate 308.

[0048] A quick shear positioning method for bar processing, the positioning method is applicable to any of the above positioning devices, and the positioning method comprises the following steps:

[0049] S1: The metal bar 103 to be sheared is passed through two traction rollers 104b and placed on the supporting pad 102. According to the required shearing length, the position of the abutting plate 506 is adjusted to control the top end of the metal bar 103 to abut against the abutting plate 506;

[0050] S2: Control the piston rod of the telescopic cylinder 203 to drive the shearing knife 205 to move downward. After each shearing of the metal bar 103, the pressure rod 304 will squeeze a certain amount of coolant into the quantitative box 307a;

[0051] S3: After the shearing knife 205 completes the Nth shearing of the metal bar 103, in the present invention, it can be assumed that after the shearing knife 205 shears the metal bar 103 N times, the shearing knife 205 is overheated and needs to be cooled. Since the shearing knife 205 completes the shearing of the metal bar 103 once, the first piston plate 303 also completes the quantitative liquid supply to the quantitative box 307a once. The value of N needs to be determined in combination with the material of the metal bar 103 and the material of the shearing knife 205 during the actual shearing process. At this time, the temperature of the shearing knife 205 rises, and the coolant in the quantitative box 307a reaches the maximum value. The extrusion trigger switch 307e controls the spray head 307j to spray cooling on the shearing knife 205.

[0052] Embodiment 2

[0053] Reference Figure 8 , which is different from the first embodiment in that: the positioning device also includes a tight positioning unit 500, which includes two pairs of second fixing ears 501 fixedly arranged on both sides of the upper side wall of the shear positioning platform 101, and a threaded rod 502 is rotatably connected between each pair of second fixing ears 501, and each threaded rod 502 is outwardly penetrated through the second fixing ears 501 and fixedly sleeved with a transmission wheel 503, and the two transmission wheels 503 are connected by a transmission belt, and a servo motor 504 is fixedly installed on one of the second fixing ears 501, and the output shaft of the servo motor 504 is fixedly connected to the top of one of the threaded rods 502. The threaded rod 502 is fixedly connected with a threaded sleeve 505, and a clamping plate 506 is fixedly connected between the two threaded sleeves 505; the two threaded rods 502 are driven to rotate by the output shaft of the servo motor 504, and the threaded sleeve 505 threadedly connected to the threaded rod 502 can drive the clamping plate 506 to move on the shearing positioning platform 101, and the position of the clamping plate 506 can be flexibly adjusted according to the length of the metal bar 103 to be sheared, without the need for staff to manually measure the positioning of the metal bar 103, thereby improving the shearing efficiency of the shearing positioning equipment for the metal bar 103.

[0054] A guide rod 507 is also fixedly connected between each pair of second fixed ears 501, and a guide sleeve 508 is slidably sleeved on the guide rod 507. Each guide sleeve 508 is fixedly connected to the corresponding threaded sleeve 505, and the two guide sleeves 508 are fixedly connected to the clamping plate 506. Through the coordinated use of the guide rod 507 and the guide sleeve 508, the movement of the threaded sleeve 505 on the threaded rod 502 can be guided and limited, and at the same time, the connection strength between the clamping plate 506 and the threaded sleeve 505 is improved.

[0055] During use, the metal bar 103 to be sheared is passed through two traction rollers 104b and placed on the supporting pad 102. According to the required shearing length, the position of the clamping plate 506 is adjusted, the top of the metal bar 103 is controlled to abut against the clamping plate 506, and the piston rod of the telescopic cylinder 203 is controlled to drive the lifting plate 204 and the shearing knife 205 to move downward. In the process of the shearing knife 205 moving downward, the connecting plate 308 and the positioning pressing block 309 first complete the pre-positioning of the metal bar 103. As the lifting plate 204 continues to press downward, the first piston plate 303 fixedly arranged at the top of the pressure rod 304 moves upward in the piston cylinder 302, and the coolant in the liquid storage box 301 is drawn into the piston cylinder 302. After the shearing knife 205 completes the shearing of the metal bar 103, the piston rod of the telescopic cylinder 203 drives the lifting plate 204 and the shearing knife 205 to reset upward, and the liquid storage box 301 fixedly arranged at the lower end of the lifting plate 204 rises with the lifting plate 204 and is aligned with the piston cylinder 302. The first piston plate 303, which is vertically sealed and slidably connected to the inner wall, presses the cooling fluid in the piston cylinder 302 into the liquid pipe 306 and then into the quantitative box 307a, and repeats this process. When the shearing knife 205 completes N shearing of the metal bar 103, the first piston plate 303 presses the cooling fluid in the piston cylinder 302 into the quantitative box 307a for the Nth time. The amount of coolant in the quantitative box 307a reaches a critical value, and the coolant squeezes the second piston plate 307b to move downward, and the squeezing block 307f squeezes the squeezing trigger switch 307e accordingly. The squeezing trigger switch 307e controls the water pump 307h to turn on, and the coolant in the quantitative box 307a can be fully sprayed on the shearing knife 205 that is gradually reset from bottom to top through the connecting pipe 307g and multiple spray heads 307j. There is no need for the staff to spray and cool the shearing knife 205 based on experience, and the metal bar 103 can be pre-positioned before shearing while extending the normal service life of the shearing knife 205.

[0056] In the process of controlling the lifting plate 204 and the shearing knife 205 to move downward, the hollow outer cylinder 401 fixedly arranged at the lower end of the lifting plate 204 descends relative to the inner rod 403, and the third piston plate 402 which is vertically sealed and slidably connected to the inner wall of the hollow outer cylinder 401 presses the gas stored in the hollow outer cylinder 401 into the blowing channel 404, and then blows off the metal iron filings attached to the surface of the gradually moving downward shearing knife 205 through the blowing hood 406, thereby ensuring the shearing effect of the shearing knife 205 on the metal bar 103. When the lifting plate 204 drives the shearing knife 205 to reset upward, the originally compressed reset spring 408 pushes the inner rod 403 and the third piston plate 402 to move downward relative to the inner wall of the hollow outer cylinder 401, and the external gas is re-replenished into the hollow outer cylinder 401 through the second one-way vent valve 407, so as to blow off the metal debris on the surface of the shearing knife 205 next time.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A quick shearing and positioning device for bar processing, characterized in that: include: A support frame unit (100) comprising a shearing positioning platform (101) and two supporting pads (102) fixedly arranged on both sides of the center of the upper side wall of the shearing positioning platform (101), wherein a plurality of evenly distributed metal bars (103) are mounted on the supporting pads (102), and the support frame unit (100) further comprises a bar pulling assembly (104) for driving the metal bars (103) to move; The bar traction assembly (104) comprises two first fixing ears (104a) fixedly arranged at the front end of the upper side wall of the shear positioning platform (101); a symmetrical traction roller (104b) is rotatably connected between the two first fixing ears (104a); the two traction rollers (104b) respectively abut against the upper and lower side walls of a plurality of metal bars (103); each traction roller (104b) passes through the first fixing ear (104a) outwardly and is fixedly sleeved with a corresponding circular gear (104c); the two circular gears (104c) are meshedly arranged; a traction motor (104d) is fixedly mounted on one of the first fixing ears (104a); the output shaft of the traction motor (104d) passes through the first fixing ear (104a) and is fixedly connected to the top of one of the traction rollers (104b); A shearing unit (200) comprising two support plates (201) fixedly arranged on both sides of the upper side wall of the shearing positioning platform (101) and a top plate (202) longitudinally mounted on the top of the support plate (201); a telescopic cylinder (203) is fixedly connected at the center of the upper side wall of the top plate (202); the lower end of the piston rod of the telescopic cylinder (203) penetrates downward through the top plate (202) and is fixedly connected to a lifting plate (204); a shearing knife (205) is fixedly installed at the center of the lower side wall of the lifting plate (204); and a shearing seat (206) matching the shearing knife (205) is fixedly arranged on the shearing positioning platform (101); The positioning spray unit (300) comprises two liquid storage boxes (301) fixedly arranged on both sides of the lower side wall of the lifting plate (204) and a piston cylinder (302) fixedly arranged in the liquid storage box (301), wherein the inner wall of the piston cylinder (302) is vertically sealed and slidably connected to a first piston plate (303), the first piston plate (303) is fixedly connected to a connecting plate (308) via a pressure rod (304), and the lower end of the pressure rod (304) is sealed and slidably connected to the lower inner wall of the liquid storage box (301), and the lower side wall of each connecting plate (308) is fixedly provided with a metal rod. (103) a matching positioning pressing block (309), a plurality of first one-way liquid replenishing valves (305) symmetrically positioned are embedded and installed at the lower end of the side wall of the piston cylinder (302), a liquid passage tube (306) is fixedly connected to the lower part of the inner cavity of the piston cylinder (302), the liquid passage tube (306) is arranged to pass through the liquid storage box (301) outwardly, and a second one-way liquid replenishing valve is fixedly installed at the connection between the liquid passage tube (306) and the piston cylinder (302), and the positioning spray unit (300) further includes a quantitative spray component (307) for periodically spraying and cooling the shearing knife (205) in a quantitative manner; The quantitative spray assembly (307) comprises a quantitative box (307a) fixedly connected to the liquid passage (306), and a second piston plate (307b) vertically sealed and slidably connected to the inner wall of the quantitative box (307a); a telescopic rod (307c) is fixedly connected to the lower side wall of the second piston plate (307b) and the center of the lower inner wall of the quantitative box (307a); a compression spring (307d) is sleeved on the telescopic rod (307c); and a symmetrically positioned compression trigger switch (307e) is fixedly connected to the lower part of the side wall of the quantitative box (307a). Extrusion protrusions (307f) matching the extrusion trigger switch (307e) are fixedly connected to the lower side wall of the second piston plate (307b) via connecting arms; a connecting pipe (307g) is fixedly connected to the side wall of the quantitative box (307a); the connecting pipe (307g) is fixedly connected to a plurality of groups of evenly distributed spray heads (307j); a water pump (307h) connected to the connecting pipe (307g) is fixedly provided on the side wall of the quantitative box (307a); and the extrusion trigger switch (307e) is used to control the start of the water pump (307h).

2. The quick shearing and positioning device for bar processing according to claim 1, characterized in that: The positioning device further comprises an extrusion chip blowing unit (400), which comprises two pairs of hollow outer cylinders (401) fixedly arranged at both ends of the lower side wall of the lifting plate (204) and a third piston plate (402) vertically sealed and slidably connected to the inner wall of the hollow outer cylinder (401), each pair of the hollow outer cylinders (401) being symmetrically arranged on both sides of the liquid storage box (301), the lower side wall of the third piston plate (402) and the upper side wall of the connecting plate (308) being fixedly connected via an inner rod (403), the inner rod (403) being arranged through the lower inner wall of the hollow outer cylinder (401), and the inner rod (403) and the connecting plate (308) being provided with The third piston plate (402) is provided with a first one-way vent valve (405) in communication with the air duct (404) at the center thereof; a side wall of the connecting plate (308) is fixedly connected with a blow hood (406) in communication with the air duct (404); a second one-way vent valve (407) is inlaid on the upper part of the side wall of the hollow outer cylinder (401); a corresponding return spring (408) is sleeved on the outer side of each of the hollow outer cylinders (401) and the inner rod (403); and two ends of the return spring (408) are respectively fixedly connected to the lower side wall of the lifting plate (204) and the upper side wall of the connecting plate (308).

3. The quick shearing and positioning device for bar processing according to claim 1, characterized in that: The positioning device also includes a clamping positioning unit (500), which includes two pairs of second fixing ears (501) fixedly arranged on both sides of the upper side wall of the shear positioning platform (101), a threaded rod (502) is rotatably connected between each pair of the second fixing ears (501), each threaded rod (502) is outwardly penetrated through the second fixing ear (501) and a fixed sleeve is provided with a transmission wheel (503), the two transmission wheels (503) are connected by a transmission belt, a servo motor (504) is fixedly installed on one of the second fixing ears (501), the output shaft of the servo motor (504) is fixedly connected to the top of one of the threaded rods (502), a threaded sleeve (505) is threadedly connected to the threaded rod (502), and a clamping plate (506) is fixedly connected between the two threaded sleeves (505).

4. The quick shearing and positioning device for bar processing according to claim 3 is characterized in that: A guide rod (507) is fixedly connected between each pair of the second fixing ears (501), a guide sleeve (508) is slidably sleeved on the guide rod (507), each guide sleeve (508) is fixedly connected to a corresponding threaded sleeve (505), and both guide sleeves (508) are fixedly connected to the clamping plate (506).

5. The quick shearing and positioning device for bar processing according to claim 1, characterized in that: The outer surface of each traction roller (104b) is padded with a layer of abrasive pad with uniform thickness, and each circular gear (104c) is provided with uniformly distributed anti-slip patterns.

6. The quick shearing and positioning device for bar processing according to claim 1, characterized in that: The upper side wall of the lifting plate (204) is fixedly connected to symmetrically positioned vertical guide rods (207), each of the vertical guide rods (207) is arranged to penetrate the top plate (202) upwards, and an anti-drop block (208) is fixedly connected to the top of the vertical guide rod (207).

7. The quick shearing and positioning device for bar processing according to claim 1, characterized in that: An observation window (307i) is inlaid on the side wall of the quantitative box (307a), and a sealing ring is provided at the point where the quantitative box (307a) and the observation window (307i) abut against each other.

8. A quick shear positioning method for bar processing, the positioning method is applicable to any one of the positioning devices in claims 1-7 above, characterized in that: The positioning method comprises the following steps: S1: passing the metal bar (103) to be sheared through two traction rollers (104b) and placing it on the supporting pad (102); adjusting the position of the abutting plate (506) according to the required shearing length, and controlling the top end of the metal bar (103) to abut against the abutting plate (506); S2: Controlling the piston rod of the telescopic cylinder (203) to drive the shearing knife (205) to move downward, and after each shearing of the metal bar (103), the pressing rod (304) will squeeze a certain amount of coolant into the quantitative box (307a); S3: After the shearing knife (205) completes the Nth shearing of the metal bar (103), the temperature of the shearing knife (205) increases, the coolant in the quantitative box (307a) reaches a maximum value, and the extrusion trigger switch (307e) controls the spray head (307j) to spray cooling on the shearing knife (205).

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