Efficient and stable cutting device for alloy bars

Abstract

The invention provides an efficient and stable cutting device for alloy bars, and belongs to the field of steel product production, cutting and machining.The efficient and stable cutting device for the alloy bars comprises a base and a mounting frame fixed to the top end of the base, a hydraulic rod is fixed to the top end of the mounting frame, and a lifting plate connected with the hydraulic rod is arranged at the bottom end of the mounting frame; a cutting knife is fixed to one side of the bottom end face of the lifting plate, a pressing block located below the cutting knife is installed on the other side of the bottom end face of the lifting plate, and an elastic pressure mechanism connected with the lifting plate is fixed to the top end of the pressing block. And in the continuous moving process, a pressing block pushes a connecting rod to move towards the top of a lifting plate, meanwhile, the lifting plate extrudes a spring to increase the extrusion force between the pressing block and a bar body, extrusion positioning is conveniently conducted before the bar is cut, the cutting stability of the bar tailings is improved, and waste of the bar tailings is avoided.

Description

Technical Field

[0001] The invention relates to the field of steel product production and processing, and in particular to an efficient and stable cutting device for alloy bars. Background Art

[0002] Stainless steel bars are common steel processing profiles in the steel manufacturing industry. After alloy materials are processed, steel bars of various specifications are formed for reprocessing or storage. When alloy bars are further processed into various steel products, it is necessary to cut the bars first, cut them to the required length, and then carry out subsequent processing. At present, the processing equipment for metal bars usually includes a feeding mechanism, a clamping mechanism, and a cutting mechanism, and the bars are cut into the required length specifications through the above three mechanisms. In order to improve the efficiency of cutting processing, the industry has improved the structure of the processing equipment and carried out rapid equidistant batch cutting. Patent CN219093794U "An equidistant cutting device for stainless steel bar processing" sets a movable scale on the processing platform, and a baffle is set at the fixed scale position of the scale. The position of the cutter is also fixed. The bar is placed on the processing platform and rests on the baffle, which can ensure that the bar is cut equidistantly every time. However, the structure of this equidistant cutting is relatively simple and requires manual adjustment each time. Patent CN222154109U "A stainless steel bar processing equidistant cutting device" makes automation improvements on this basis, replacing all the parts that need to be moved in each module such as feeding, limiting, and cutting with motors or electric push rods, and connecting to the controller to achieve automatic control, thereby avoiding manual adjustment and improving processing efficiency.

[0003] The technical solution of the above patents pays too much attention to "equidistant" cutting, so that the bars can be accurately cut into bars of fixed length in batches in the processing device efficiently. However, the quality of the finished products of alloy bars depends not only on the accurate cutting length, but also on the stability during the cutting process. In the above patents, in order to achieve the fast entry and exit of the bars in the processing device during cutting, there is no special fixed design for the bars. When the weight of the bars is large and the cutting length is long, the stability effect during cutting can be achieved by relying on the weight balance of the bars themselves. However, once the weight of the bars is light and the cutting length is small, the bars are easy to tilt at one end during cutting, resulting in a rugged cut and reducing the quality of the finished products. When cutting alloy bars of different models, the current simple fixed structure is difficult to fix. On the other hand, when the length of the tail of the bar can be cut into a product of the required length specification again, and the remaining tail length is not enough to be clamped by the clamping mechanism, the tail of the bar is usually wasted, resulting in high production costs. Summary of the invention

[0004] In view of the above-mentioned defects existing in the prior art, the present invention proposes an efficient and stable cutting device for alloy bars, aiming to solve the problems of compatibility of alloy bars of different models and uneven cutting quality in the current alloy bar cutting process, especially the problem of poor cutting quality caused by light weight of the bars and unstable fixation of the bars when the cutting length is small each time, as well as the waste of bar tailings.

[0005] To achieve the above object, the present invention adopts the following technical solutions: The cam is provided with a plurality of support members, each of which is provided with a plurality of support members, each of which is provided with a plurality of support members, each of which is provided with a plurality of support members, each of which is provided with a plurality of support members, each of which is provided with a plurality of support members. When cutting the alloy rod, the alloy rod is placed horizontally and longitudinally on the rod fixing seat, the positioning plate is moved horizontally and longitudinally so that the distance between the positioning plate and the cutting knife is set to the rod cutting length, and the end of the alloy rod is against the positioning plate; the hydraulic rod drives the lifting plate to move downward, and the cutting knife on the bottom end surface of the lifting plate and the pressing block move downward synchronously, the pressing block first contacts the alloy rod, and the hydraulic rod continues to drive the lifting plate to move downward. The pressing block maintains its position and squeezes and fixes the alloy rod under the action of the guide reset mechanism, and the cutting knife continues to move downward with the lifting plate to cut and cut the alloy rod.

[0006] According to an exemplary embodiment of the invention, the upper surface of the rod fixing seat is provided with a concave, horizontally and longitudinally extending arc-shaped positioning groove, and the alloy rod is coaxially placed in the arc-shaped positioning groove.

[0007] According to an exemplary embodiment of the invention, a central angle of an arc of a cross section of the arc-shaped positioning groove is less than 90°.

[0008] According to an exemplary embodiment of the invention, the outer surface of the arc-shaped positioning groove is made of soft silicone or rubber material.

[0009] According to an exemplary embodiment of the invention, a plurality of elastic lock buckles are provided on the rod fixing seat, and the elastic lock buckles are distributed on both sides of the arc-shaped positioning groove and are used to fix the alloy rod.

[0010] According to an exemplary embodiment of the invention, positioning rods are symmetrically provided on both sides of the top surface of the lifting plate, the top ends of the positioning rods are slidably inserted in the mounting frame, and the lifting plate moves up and down along the positioning rods.

[0011] According to an exemplary embodiment of the invention, the guide reset mechanism includes a connecting rod and a spring, the bottom end of the connecting rod is fixedly mounted on the pressure block, the top end of the connecting rod is slidably inserted in the lifting plate, the spring is sleeved on the connecting rod, and the pressure block moves up and down along the connecting rod; when the pressure block approaches the lifting plate, the spring contracts and stores energy; when the spring stretches and resets, the pressure block moves away from the lifting plate.

[0012] According to an exemplary embodiment of the invention, threaded holes are provided on both sides of the fastening frame, and the fastening frame is fixedly mounted on the rod fixing seat by means of a screw knob.

[0013] According to an exemplary embodiment of the invention, the cutting knife is located outside the bar fixing seat.

[0014] According to an exemplary embodiment of the invention, a scale is provided on the side of one end of the base on which the mounting bracket is mounted, and the positioning plate moves along the scale of the scale to adjust its position.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. A cutting knife is arranged at the bottom of the lifting plate, and a pressing block is also arranged. The pressing block is connected to the lifting plate through a guide reset mechanism and can move up and down elastically. The pressing block can always squeeze the main body of the alloy bar and fix it before and during cutting, and its fixed position is next to the cutting position of the bar, which improves the stability of cutting the bar tail and avoids the waste of the bar tail; 2. Use the bar fixing seat, fastening frame and pressure block to fix the bar when cutting, avoid hanging bracket, place the alloy bar flat on the bar fixing seat, clamp it with pressure block beside the cutting knife, and fix it with the fastening frame at a position slightly away from the cutting position. The fastening frame, pressure block and bar fixing seat are all split structures, fixed from top to bottom, suitable for different types of bars, and fixed at multiple positions and points, not limited by the length and weight of the bar, and can ensure that the bar will not tilt or shake during the cutting process; 3. A convex plate is fixed on the side wall of the mounting frame. After the bolts on the top of the convex plate are tightened, it abuts against the positioning plate to keep the positioning plate fixed. The bottom end of the positioning plate abuts against the main body of the bar material, and the main body of the bar material is quantitatively cut. After adjusting the position of the positioning plate, it is convenient to adjust the cutting length of the main body of the bar material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an efficient and stable cutting device for alloy bars; Figure 2 It is a schematic diagram of the structure of an efficient and stable alloy bar cutting device from another angle; Figure 3 for Figure 2 A magnified schematic diagram of the structure at center A; Figure 4 It is a schematic diagram of the cross-sectional structure of the mounting frame.

[0018] The markings in the attached drawings are: 1. base; 2. mounting frame; 3. positioning plate; 4. positioning rod; 5. hydraulic rod; 6. alloy rod; 7. arc-shaped positioning groove; 8. rod fixing seat; 9. fastening frame; 10. screw knob; 11. connecting rod; 12. spring; 13. lifting plate; 14. anti-slip part; 15. convex plate; 16. bolt; 17. cutting knife; 18. pressure block. DETAILED DESCRIPTION

[0019] In order to further understand the purpose, structure, characteristics, and functions of the present invention, this section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "lateral", "longitudinal", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation” and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0022] The cutting and processing requirements of alloy bars mainly include: 1. Cut the alloy bars according to the preset fixed length, and the cutting length varies according to the demand; 2. Ensure that the alloy bars are firmly and stably cut each time, the cutting mouth is flat, and the finished product quality is high. In the current alloy bar cutting process, in order to improve the processing efficiency and facilitate the fast entry and exit of the alloy bars in the processing device, the fixing effect of the bars is not good. Once the bar itself is light, it is easy to tilt or shake during cutting, resulting in poor cutting quality. At the same time, the distance between the fixing clamp and the cutting knife is greater than the length of the tail material, and the last cutting cannot be performed due to the inability to clamp, resulting in waste of tail material.

[0023] Reference Figure 1 To Attachment Figure 4 , an efficient and stable cutting device for alloy bars, comprising a base 1, on which a bar fixing seat 8 and a mounting frame 2 are provided, the bar fixing seat 8 extends horizontally and longitudinally on the base 1 and is used to support the alloy bar 6, the mounting frame 2 spans over the bar fixing seat 8, a hydraulic rod 5 is provided at the top of the mounting frame 2, a lifting plate 13 is connected to the bottom end of the hydraulic rod 5, a cutting knife 17 and a pressing block 18 are respectively installed on the bottom end surface of the lifting plate 13, the bottom end of the pressing block 18 is located below the blade of the cutting knife 17, and the top end surface of the pressing block 18 is connected to the bottom end surface of the lifting plate 13 through a guide reset mechanism; a fastening frame 9 is detachably installed below the mounting frame 2, the fastening frame 9 is located directly above the bar fixing seat 8, and a convex plate 15 is provided on the side of the mounting frame 2 away from the bar fixing seat 8, a positioning plate 3 with an L-shaped structure is slidably inserted in the convex plate 15 and moves along the horizontal longitudinal direction.

[0024] The use process of the efficient and stable alloy bar cutting device of the present invention is as follows: when cutting the alloy bar 6, the alloy bar 6 is placed horizontally and longitudinally on the bar fixing seat 8, the positioning plate 3 is moved horizontally and longitudinally so that the distance between the positioning plate 3 and the cutting knife 17 is the set bar cutting length, and the end of the alloy bar 6 is against the positioning plate 3; the hydraulic rod 5 drives the lifting plate 13 to move downward, and the cutting knife 17 and the pressure block 18 on the bottom end surface of the lifting plate 13 move downward synchronously, the pressure block 18 first contacts the alloy bar 6, and the hydraulic rod 5 continues to drive the lifting plate 13 to move downward. The pressure block 18 maintains its position and squeezes and fixes the alloy bar 6 under the action of the guide reset mechanism, and the cutting knife 17 continues to move downward with the lifting plate 13 and cuts and cuts the alloy bar 6.

[0025] In one embodiment, hydraulic push rods are respectively provided on the base 1 on both sides of the axial direction of the rod body 6, and a strain gauge is also provided on the rod body 6. The hydraulic push rods pre-apply a pressure of 0.5-1.2KN to both ends of the rod body. The strain gauge monitors the axial deformation of the rod body in real time, maintains the rod body 6 in a slightly compressed state, and can enhance the shear strength of the rod body 6, thereby improving the cutting quality of the rod.

[0026] Preferably, the hydraulic push rod located at the end of the rod body 6 to be cut can replace the positioning plate 3 to position the end of the rod body 3. The hydraulic push rod located at one end of the rod body 6 to be cut moves to the specified position and remains stationary, and the hydraulic push rod at the other end moves along the axial direction of the rod to fix the rod body 6 to a slightly compressed state.

[0027] Optionally, the fastening frame 9 is kept fixed by the screw knob 10 and squeezes the rod body 6, further improving the stability of the rod body 6 during cutting. After loosening the bolt 16, the positioning plate 3 is allowed to slide in the convex plate 15. After adjusting the position of the positioning plate 3, the cutting length of the rod body 6 is adjusted. After tightening the bolt 16 at the top of the convex plate 15, it abuts against the positioning plate 3 to keep the positioning plate 3 fixed. The bottom end of the positioning plate 3 abuts against the rod body 6, and the rod body 6 is quantitatively cut.

[0028] The base 1 of the present invention plays a stabilizing role. The weight counterweight and overall stability of the device can be achieved by using heavy materials such as cast iron, or the entire device can be fixed on other horizontal planes by fixing parts such as screws.

[0029] In the present invention, the bar fixing seat 8 is arranged on the base 1 and used to place the bars. In the cutting device of the prior art, the fixing frame is often raised and the bars are clamped in several fixing frames, so as to achieve the purpose of fast in and out of the bars and improve the processing efficiency by reducing the friction when the bars move. At the same time, the rear end of the bars is suspended after being raised, which is also conducive to cutting. However, this structure sacrifices the stability when the force is applied to one end of the bars for cutting. The present invention directly sets the bar fixing seat 8 on the base 1. The bar fixing seat 8 can support the alloy bars 6 horizontally as a whole, and is an open structure. There is no obstruction or limit above the bar fixing seat 8. The alloy bars 6 can be easily and successfully placed in the bar fixing seat 8, and there is no need for the bars to be aligned, inserted, etc., and then squeezed and clamped by the fastening frame 9 and the pressing block 18, so that the bars can be quickly placed and clamped under the premise of being applicable to different types of bars.

[0030] In one embodiment, a magnetorheological fluid clamping layer is provided at the bottom of the pressing block 18, including a deformable flexible sealing bag, the interior of the flexible sealing bag is filled with a magnetic fluid, the flexible sealing bag and the magnetic fluid together form a magnetorheological fluid sealing fixture, and a magnetic circuit is also provided on the pressing block 18, and an electromagnetic field is generated after the electromagnetic circuit is energized, and the magnetic fluid in the magnetorheological fluid sealing fixture responds quickly and forms a stable fixed sealing state. When used specifically, the alloy bar is first placed on the bar fixing seat 8, and the end of the bar body 6 to be cut is made to abut against the positioning plate 3, the pressing block 18 is moved downward so that the magnetorheological fluid sealing fixture contacts the bar body 6 by at least one-third of its height, and the electromagnetic circuit is energized, so that the magnetic fluid in the flexible sealing bag is solidified to form a stable sealing state, and the shape of the bar body 6 is completely fitted to form a customized contour to wrap the bar body 6, so that micron-level clamping and fixing can be achieved. When the cutting is completed, the electromagnetic circuit is powered off, so that the magnetic fluid in the flexible sealing bag is turned back into a fluid liquid state, which is convenient for quickly taking out the bar body 6.

[0031] Preferably, the switch of the electromagnetic circuit is connected to the switch of the cutting knife. When the cutting knife is turned on, the switch of the electromagnetic circuit is turned on, and a magnetic field is applied during cutting to solidify the magnetic fluid, adapting to rods of different diameters to form a customized contour to wrap the rod body 6; when the cutting knife is turned off, the electromagnetic circuit is turned off, the magnetic fluid returns to a liquid state, and the magnetorheological fluid clamping layer returns to a soft state, making it easier to take out the material.

[0032] In one embodiment, the upper surface of the bar fixing seat 8 is provided with a concave arc-shaped positioning groove 7 extending horizontally and longitudinally, and the alloy bar 6 is coaxially placed in the arc-shaped positioning groove 7. After the alloy bar 6 is placed on the bar fixing seat, even if the position is slightly offset, it can roll into the arc-shaped positioning groove 7 and be initially fixed, with high positioning efficiency and good positioning effect, and is not limited to the model of the bar, including diameter, length, etc., and has strong compatibility.

[0033] In one embodiment, the arc center angle of the cross-section of the arc-shaped positioning groove 7 is less than 90°. The concave arc surface within this angle range can be compatible with alloy rods 6 with a larger diameter range, avoiding the situation where alloy rods 6 with larger diameters are suspended and fixed on both sides of the arc-shaped positioning groove 7, thereby improving the stability of the rods.

[0034] In one embodiment, the outer surface of the arc-shaped positioning groove 7 is made of soft silicone or rubber material. Whether the rod is clamped or cut, the rod will be subjected to downward force. The soft silicone or rubber material can further prevent the surface of the alloy rod 6 from being scratched by the edges of the arc-shaped positioning groove 7.

[0035] In one embodiment, a plurality of elastic lock buckles are provided on the bar fixing seat 8, and the elastic lock buckles are distributed on both sides of the arc-shaped positioning groove 7 and are used to fix the alloy bar 6. The elastic lock buckles can be any elastic lock buckle products in the prior art, and the elastic lock buckles can include longer elastic fixing arms. When the bar is placed in the arc-shaped positioning groove 7, the elastic lock buckles are moved so that the elastic fixing arms can be pressed against and clamped on the sides of the bar. The elastic lock buckles are distributed on both sides of the bar, so that the bar can be better fixed.

[0036] In the present invention, the bar positioning, clamping stability, and cutting components are all centrally arranged on the mounting frame 2, and the mounting frame 2 is located above the bar fixing seat 8; optionally, the mounting frame 2 is located at one end of the cutting process of the bar fixing seat 8 to implement the cutting process; all key components are concentrated on the mounting frame 2, so that most of the space above the bar fixing seat 8 is completely unobstructed, which is conducive to the rapid placement of the alloy bar 6. The pressing block 18 and the cutting knife 17 are arranged close to each other. Even if the remaining length of the bar is extremely short after cutting, the pressing block 18 can well squeeze and fix the bar, avoiding the situation where the last bar cutting cannot be carried out because the tail material is not long enough and cannot be clamped, thereby improving the stability of cutting the bar tail material and avoiding the waste of the bar tail material.

[0037] The pressing block 18 and the cutting knife 17 are both installed at the bottom of the lifting plate 13. The lifting plate 13 is lifted and lowered by the hydraulic rod 5, which reduces the number of driving parts, saves space, and facilitates the placement of the bars while reducing the failure rate. The pressing block 18 and the cutting knife 17 are lifted and lowered synchronously with the lifting plate 13. At the same time, a guide reset mechanism is also provided on the pressing block 18. In the initial state, the position of the pressing block 18 is lower than that of the cutting knife 17, ensuring that the pressing block 18 squeezes and fixes the bars before the cutting knife 17 cuts the bars. At the same time, the more the cutting knife 17 moves downward for cutting, the greater the squeezing force of the pressing block 18 on the bars, and the better the fixing effect of the bars. In addition, the pressing block 18 and the cutting knife 17 are lifted and lowered synchronously and the distance is very close, which can also effectively prevent the shaking of the bar cutting position, ensure the flatness of the cutting mouth, and improve the cutting quality.

[0038] In one embodiment, positioning rods 4 are symmetrically arranged on both sides of the top surface of the lifting plate 13, and the top ends of the positioning rods 4 are slidably inserted in the mounting frame 2, and the lifting plate 13 moves up and down along the positioning rods 4. This structure is a guide component, which can make the lifting plate 13 move up and down along the limited direction in which the positioning rods 4 extend, and the cutting knife 17 is installed on the lifting plate 13, which can limit the moving direction of the cutting knife 17, so as to avoid the shaking of the cutting knife 17 during the cutting process, and ensure the flatness and high quality of the cutting mouth.

[0039] In one embodiment, the guide reset mechanism includes a connecting rod 11 and a spring 12, the bottom end of the connecting rod 11 is fixedly mounted on the pressing block 18, the top end of the connecting rod 11 is slidably inserted in the lifting plate 13, the spring 12 is sleeved on the connecting rod 11, and the pressing block 18 moves up and down along the connecting rod 11; when the pressing block 18 approaches the lifting plate 13, the spring 12 contracts to store energy; when the spring 12 extends and resets, the pressing block 18 moves away from the lifting plate 13. The connecting rod 11 of the guide reset mechanism can guide and limit the moving direction of the pressing block 18, so that the moving direction of the pressing block 18 is always consistent with the cutting knife 17, which has a good squeezing and fixing effect on the bar.

[0040] In one embodiment, an anti-slip portion 14 is provided at the top of the connecting rod 11, and the connecting rod 11 at the top of the pressure block 18 is slidably inserted into the socket of the lifting plate 13. The diameter of the anti-slip portion 14 is larger than the socket on the lifting plate 13, and is located at the top of the lifting plate 13. In this way, when the connecting rod 11 moves down to a certain distance, the anti-slip portion 14 at the top of the connecting rod 11 will abut against the lifting plate 13 to prevent it from moving further down, thereby preventing the connecting rod 11 from detaching from the lifting plate 13, ensuring that the device works normally for a long time.

[0041] In one embodiment, threaded holes are provided on both sides of the fastening frame 9, and the fastening frame 9 is fixedly mounted on the bar fixing seat 8 through a screw knob 10. The fastening frame 9 is fixed to the bar fixing seat 8 in such a repeatedly detachable mounting manner, and cooperates with the bar fixing seat 8 to clamp and fix the bar.

[0042] In other embodiments, the fastening frame 9 can be slidably inserted into the mounting seat through the connecting rod 11, and connected to the driving components such as the hydraulic rod 5. When the rod is placed at the specified position of the rod fixing seat 8, the driving device drives the fastening frame 9 to move downward, squeeze the rod and clamp the rod.

[0043] In one embodiment, the cutting knife 17 is located outside the bar fixing seat 8, and the cutting opening of the bar is located outside the bar fixing seat 8, which makes cutting easier. The bar is placed in the arc-shaped positioning groove 7 of the bar fixing seat 8. If the cutting knife 17 is located above the arc-shaped positioning groove 7, a part of the bottom end of the bar is fixed in the arc-shaped positioning groove 7, and the cutting knife 17 continues to press down when cutting the bar. When it is pressed down to abut against the bar fixing seat 8, it cannot move down further, unless the shape of the bottom blade of the cutting knife 17 is designed to match the shape of the arc-shaped positioning groove 7, so that the cutting knife 17 can completely cut the bar. Under this structure, the cutting opening is located outside the bar fixing seat 8, and the bottom of the cutting opening of the bar is suspended, so a cutting knife 17 of ordinary shape can easily cut the bar.

[0044] The positioning plate 3 of the present invention is also movably mounted on the outside of the mounting frame 2 through the convex plate 15. The distance between the positioning plate 3 and the cutting knife 17 is the length of the alloy rod 6 cut each time. As long as the position of the positioning plate 3 remains unchanged, the end of the alloy rod 6 is placed against the inner side of the positioning plate 3 each time, so that the length of the alloy rod 6 cut each time can be kept the same. If the length of the cut alloy rod 6 needs to be changed, it is only necessary to change the distance between the positioning plate 3 and the cutting opening according to the needs.

[0045] In one embodiment, a ruler may be provided beside the base 1 to facilitate workers to compare the scale of the ruler and accurately adjust the cutting length of the alloy bar 6 each time.

[0046] In one embodiment, a positioning and ranging device is provided on the mounting frame of the present invention. Optionally, the positioning and ranging device can be a commercially available device such as an infrared ranging instrument or a laser ranging instrument. Preferably, the mounting position of the positioning and ranging device is flush with the cutting knife. The positioning and ranging device emits a ranging laser from a position flush with the cutting knife. The optical path of the ranging laser is parallel to the axis of the alloy bar. The ranging laser hits the positioning plate and can measure the distance between the cutting knife and the positioning plate, which is the length of the cut alloy bar. The positioning and ranging device can use a colored light source instrument. The emitted ranging laser is red, green or other colored optical fiber visible to the naked eye, which is convenient for the Cao team members to observe with the naked eye. In addition, the ranging laser emitted by the positioning and ranging device can be calibrated to fit the surface of the alloy bar, so that when measuring the distance, it can simultaneously check whether the alloy bar is placed horizontally to ensure the cutting stability and cutting quality of the alloy bar.

[0047] In summary, the efficient and stable alloy bar cutting device of the present invention improves the device structure. First, the alloy bar is directly placed on the bar fixing seat and fixed by the groove at the bottom. At the same time, the fastening frame, the pressure block, the cutting knife, the positioning plate and other components are all centrally installed on the mounting frame to avoid being blocked above the bar fixing seat, which is convenient for the rapid placement and preliminary positioning of the alloy bar. The fastening frame and the pressure block are used in conjunction with each other to fix the alloy bar at multiple points, thereby improving the stability effect when the bar is cut; the pressure block and the cutting knife are both installed on the lifting plate and are synchronously lifted and lowered by the hydraulic rod. The pressure block is close to the cutting opening of the cutting knife to squeeze and fix the bar. No matter how short the tail of the alloy bar is, it can be effectively clamped and fixed and assist in cutting, effectively avoiding waste of tail; the pressure block is located below the cutting knife and moves elastically up and down through the guide reset mechanism, which can ensure that the pressure block squeezes and fixes the bar before the cutting knife cuts the alloy bar, which is conducive to stable cutting and smooth cutting opening. The deeper the cutting knife cuts the bar, the greater the extrusion force, and the better the fixing effect of the alloy bar.

[0048] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0049] The present invention has been described by the above-mentioned relevant embodiments, but the above-mentioned embodiments are only examples for implementing the present invention, which are used to help understand the technical solutions and core ideas of the present application. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention; on the contrary, the technical solutions recorded in the above-mentioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents; modifications and embellishments made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. An efficient and stable cutting device for alloy bars, characterized by: The invention comprises a base (1), wherein the base (1) is provided with a rod fixing seat (8) and a mounting frame (2), wherein the rod fixing seat (8) extends horizontally and longitudinally on the base (1) and is used to support an alloy rod (6), wherein the mounting frame (2) spans over the rod fixing seat (8), wherein a hydraulic rod (5) is provided at the top end of the mounting frame (2), wherein a lifting plate (13) is connected to the bottom end surface of the lifting plate (13), wherein a cutting knife (17) and a pressing block (18) are respectively installed on the bottom end surface of the pressing block (1 The bottom end of the rod fixing seat (8) is located below the blade of the cutting knife (17), and the top end surface of the pressing block (18) is connected to the bottom end surface of the lifting plate (13) via a guide reset mechanism; a fastening frame (9) is detachably mounted below the mounting frame (2), and the fastening frame (9) is located directly above the rod fixing seat (8); a convex plate (15) is provided on the side of the mounting frame (2) away from the rod fixing seat (8), and a positioning plate (3) of an L-shaped structure is slidably inserted in the convex plate (15) and moves along the horizontal longitudinal direction; When cutting the alloy bar (6), the alloy bar (6) is placed horizontally and longitudinally on the bar fixing seat (8), the positioning plate (3) is moved horizontally and longitudinally so that the distance between the positioning plate (3) and the cutting knife (17) is set to the bar cutting length, and the end of the alloy bar (6) is against the positioning plate (3); the hydraulic rod (5) drives the lifting plate (13) to move downward, and the cutting knife (17) and the pressing block (18) on the bottom end surface of the lifting plate (13) move downward synchronously, and the pressing block (18) first contacts the alloy bar (6), and the hydraulic rod (5) continues to drive the lifting plate (13) to move downward. The pressing block (18) remains in position under the action of the guide reset mechanism and squeezes and fixes the alloy bar (6), and the cutting knife (17) continues to move downward with the lifting plate (13) to cut and cut the alloy bar (6).

2. The efficient and stable alloy bar cutting device according to claim 1, characterized in that: The upper surface of the rod fixing seat (8) is provided with a concave arc-shaped positioning groove (7) extending horizontally and longitudinally, and the alloy rod (6) is coaxially placed in the arc-shaped positioning groove (7).

3. The efficient and stable alloy bar cutting device according to claim 2, characterized in that: The arc center angle of the cross section of the arc-shaped positioning groove (7) is less than 90°.

4. The efficient and stable alloy bar cutting device according to claim 2, characterized in that: The outer surface of the arc-shaped positioning groove (7) is made of soft silicone or rubber material.

5. The efficient and stable alloy bar cutting device according to claim 2, characterized in that: The rod fixing seat (8) is provided with a plurality of elastic lock buckles, which are distributed on both sides of the arc-shaped positioning groove (7) and are used to fix the alloy rod (6).

6. The efficient and stable alloy bar cutting device according to claim 1, characterized in that: Positioning rods (4) are symmetrically provided on both sides of the top surface of the lifting plate (13), and the top ends of the positioning rods (4) are slidably inserted into the mounting frame (2), so that the lifting plate (13) moves up and down along the positioning rods (4).

7. The efficient and stable alloy bar cutting device according to claim 1, characterized in that: The guide reset mechanism comprises a connecting rod (11) and a spring (12); the bottom end of the connecting rod (11) is fixedly mounted on the pressure block (18); the top end of the connecting rod (11) is slidably inserted into the lifting plate (13); the spring (12) is sleeved on the connecting rod (11); the pressure block (18) moves up and down along the connecting rod (11); when the pressure block (18) approaches the lifting plate (13), the spring (12) contracts to store energy; when the spring (12) extends to reset, the pressure block (18) moves away from the lifting plate (13).

8. The efficient and stable alloy bar cutting device according to claim 1, characterized in that: A magnetorheological fluid clamping layer is arranged at the bottom of the pressing block (18), comprising a deformable flexible sealing bag, the interior of which is filled with a magnetic fluid. A magnetic circuit is also arranged on the mounting frame (2). The flexible sealing bag, the magnetic fluid and the magnetic circuit together form a magnetorheological fluid sealing fixture. When the electromagnetic circuit is powered on, the magnetic fluid quickly solidifies to form a customized contour to wrap the rod. When the electromagnetic circuit is powered off, the magnetic fluid quickly returns to a liquid state.

9. The efficient and stable alloy bar cutting device according to claim 1, characterized in that: The cutting knife (17) is located outside the bar fixing seat (8).

10. The efficient and stable alloy bar cutting device according to claim 1, characterized in that: The mounting frame (2) is provided with a positioning and distance measuring device. The mounting position of the positioning and distance measuring device is flush with the cutting knife (17). The positioning and distance measuring device emits a distance measuring laser from a position flush with the cutting knife (17). The optical path of the distance measuring laser is parallel to the axis of the alloy bar (6). The distance measuring laser is projected onto the positioning plate (3). The distance between the cutting knife (17) and the positioning plate (3) is measured as the length of the cut alloy bar (6).

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