Clipping machine for H-shaped steel machining

Abstract

The invention relates to the field of clipping machines, in particular to a clipping machine for H-shaped steel machining, which comprises a pre-dividing mechanism for positioning and pre-segmenting H-shaped steel, a limiting block is arranged at the top of the pre-dividing mechanism, and the limiting block is used for limiting the top of the H-shaped steel and preventing the top of the H-shaped steel from falling off; a shearing frame is arranged on the outer side of the pre-separating mechanism, a driving piece is fixedly installed on the outer side of the shearing frame, and the driving piece is used for driving a shearing knife to conduct shearing treatment on the H-shaped steel; the bottom of the shearing frame is matched with a fixing rail in a sliding mode, and the shearing frame can slide. According to the shearing machine for H-shaped steel machining, when an electric push rod extends outwards by 50 centimeters, a telescopic rod also extends outwards by 50 centimeters along with the electric push rod, and therefore the effects that the total length of the electric push rod and the total length of the telescopic rod are kept consistent all the time, and preparation is made for subsection of the subsequent H-shaped steel are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of shearing machines, and specifically to a shearing machine for H-beam processing. Background Art

[0002] A shearing machine is an essential mechanical equipment in a rolling mill workshop for shearing the heads, tails, edges and corners, and fixed-length sections of steel. It is an indispensable shearing equipment in the high-precision metal processing industry.

[0003] The existing shearing machines have the following problems in the process of shearing H-beams: 1. In the cross-sectional structure of H-beams, the flanges and webs are relatively thin. When shearing horizontally (especially when shearing from the web position), the unfilled cavity area lacks support, which may cause the flanges to bend inward or outward (buckling), damaging the cross-sectional integrity; 2. The traditional fixed-length sections are processed by measuring with a tape measure and marking lines for H-beams. However, this method will result in: large errors and multiple measurements are required to find the accurate positioning points; in addition, using digital measurements (such as laser trackers) and automated equipment will significantly increase production costs. Summary of the Invention

[0004] The present invention aims to provide a shearing machine for H-beam processing to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A shearing machine for H-beam processing, including a pre-separation mechanism for positioning and pre-segmenting the H-beam. A limit block is provided on the top of the pre-separation mechanism, and the limit block is used for limiting the top of the H-beam and preventing it from falling off. A shearing frame is provided outside the pre-separation mechanism, and a driving member is fixedly installed on the outside of the shearing frame. The driving member is used to drive a shearing knife to shear the H-beam. The bottom of the shearing frame is slidably fitted with a fixed rail, and the shearing frame is slidable.

[0006] A shearing mechanism for applying forward cutting and reverse cutting blowing forces to the H-beam is provided inside the shearing frame.

[0007] Preferably, the pre-separation mechanism includes a conveying table. The center of the top of the conveying table is fixedly connected to the limit block. A servo motor is fixedly installed outside the conveying table, and the output end of the servo motor is connected to a transmission assembly through a rotating shaft.

[0008] Preferably, the transmission assembly includes a conveyor belt and rotating rollers. In addition, the central part of the transmission roller is connected to the rotating shaft, and the conveyor belt is drivingly connected to the center inside the conveying table. A steel piece is slidably fitted to the central part of the conveying table, and the steel piece is conveyed forward by a conveyor belt.

[0009] Preferably, a roller sleeve is fixedly installed on the outer end face of the conveying table, and a positioning roller is slidably fitted inside the roller sleeve. The positioning roller is used for the preliminary limiting and position adjustment of the steel piece. In addition, one end of the positioning roller close to the steel piece is spherical.

[0010] Preferably, a gear-rack bidirectional assembly is fixedly installed outside the conveying table. The two ends of the gear-rack bidirectional assembly are respectively provided with an external connecting rod and a bent rod. One end of the external connecting rod far from the gear-rack bidirectional assembly is fixedly connected to the shearing frame. The gear-rack bidirectional assembly includes a central gear and racks arranged on both sides of the central gear and meshing with it. The external connecting rod and the bent rod are respectively fixedly connected to the two racks.

[0011] Preferably, a groove is formed inside the conveying table, and an electric push rod is fixedly installed in the groove. The output end of the electric push rod is fixedly connected to a slider, and the slider is slidably fitted in the groove. A positioning hemisphere is used for positioning the slider and is fitted with the slider in an embedded manner. One end of the positioning hemisphere far from the slider is fixedly connected to a return spring. The positioning hemisphere is slidably fitted inside the conveying table, and the end of the return spring far from the positioning hemisphere is fixedly connected to the conveying table.

[0012] Preferably, a partition plate is fixedly connected to the side of the slider far from the positioning hemisphere. A fitting plate is used for protecting the steel piece during the equal division and shearing processes and is fitted inside both sides of the steel piece. One side of the fitting plate far from the steel piece is fixedly connected to the partition plate. In addition, the fitting plate is a general term for various different lengths of plates.

[0013] Preferably, a telescopic rod is fixedly installed at the end of the slider far from the electric push rod. A multi-connected sleeve rod is fixedly connected to the outside of the output end of the telescopic rod. One end of the multi-connected sleeve rod far from the telescopic rod is fixedly connected to the output end of the electric push rod. The multi-connected sleeve rod is used to keep the output ends of the electric push rod and the telescopic rod of the same length.

[0014] Preferably, the shearing mechanism includes a processing table, which is arranged directly below the shearing frame and connected to it. A slit is formed at the center of the processing table. On both sides of the inner cavity of the shearing frame, lead screws are connected through bearings, and the lead screws are controlled by a driving member for starting and stopping.

[0015] Preferably, a sliding table is threadedly connected to the outside of the lead screw. A bottom rail is fixedly installed at the bottom of the sliding table. A transverse groove is formed on the outside of the bottom rail, and a counterweight block is slidably fitted inside the transverse groove; The counterweight block is used to balance the weight and prevent force imbalance.

[0016] Preferably, a first shearing knife and a second shearing knife are respectively slidably fitted at the bottom of the bottom rail, and both the first shearing knife and the second shearing knife are fixedly installed on the bottom rail through fasteners; On both sides of the second shearing knife, hydraulic columns are symmetrically connected, and the bottom of the output end of the hydraulic column is fixedly connected to a side shearing knife; The first shearing knife is used for shearing the horizontally placed H-shaped steel, while the second shearing knife and the side shearing knife are used for shearing the square H-shaped steel.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. When the electric push rod extends outward by fifty centimeters, the telescopic rod will also extend outward by fifty centimeters accordingly, so as to keep the total length of the electric push rod and the telescopic rod always consistent, and play a role in making preparations for the subsequent segmentation of the H-shaped steel.

[0018] 2. The number of positioning hemispheres and reset springs is several and is divided into multiple groups. The distance between multiple positioning hemispheres and reset springs in one group is fixed, so as to play a role in dividing and processing H-shaped steels of different lengths when shearing.

[0019] 3. The fitting plate has two functions: the first is to accurately divide the steel parts equally, which is convenient for subsequent accurate shearing processing; the second is that for the horizontally placed steel parts, there are cavities on both sides, so the fitting plate will fill and supplement the cavities to prevent deformation, tearing during shearing, and improve the shearing efficiency and tool life.

[0020] 4. Through the force transmission of the gear-rack bidirectional assembly, the shearing frame will drive the processing table to move in the reverse direction, so as to make the distance between the processing table and the partition plate equal to the distance between each partition plate. The function of maintaining equality is: it is convenient for the operator or the control device to accurately place the position of the steel part to be cut at the central gap of the processing table.

[0021] 5. It plays a role in processing the horizontally placed and vertically placed H-shaped steels with two different types of tools. Description of the Drawings

[0022] Figure 1 Schematic diagram of the external structure of a shearing machine for H-beam processing according to the present invention.

[0023] Figure 2 Schematic diagram of the sectional structure of the whole device of the present invention.

[0024] Figure 3 Schematic diagram of the structure of the pre-splitting mechanism of the present invention.

[0025] Figure 4 Schematic diagram of the enlarged structure of some components of the pre-splitting mechanism of the present invention.

[0026] Figure 5 Schematic diagram of the sectional structure of the pre-splitting mechanism of the present invention.

[0027] Figure 6 Schematic diagram of the first transverse sectional structure of the pre-splitting mechanism of the present invention.

[0028] Figure 7 Schematic diagram of the enlarged structure of the first transverse section of the pre-splitting mechanism of the present invention.

[0029] Figure 8 Schematic diagram of the second transverse sectional structure of the pre-splitting mechanism of the present invention.

[0030] Figure 9 Schematic diagram of the structure of the internal components of the pre-splitting mechanism of the present invention.

[0031] Figure 10 Schematic diagram of the structure of the shearing mechanism of the present invention.

[0032] Figure 11 Schematic diagram of the sectional structure of the shearing mechanism of the present invention.

[0033] Figure 12 Schematic diagram of the structure of some components of the shearing mechanism of the present invention.

[0034] In the figure: 1, fixed rail; 2, shearing frame; 3, driving part; 4, pre-splitting mechanism; 5, limiting block; 6, shearing mechanism; 41, conveying table; 42, servo motor; 43, conveying assembly; 44, steel piece; 45, roller sleeve; 46, positioning roller; 47, gear-rack bidirectional assembly; 48, external connecting rod; 49, bending rod; 40, electric push rod; 401, slider; 402, partition plate; 403, positioning hemisphere; 404, return spring; 405, multi-connected rod; 406, telescopic rod; 407, fitting plate; 61, lead screw; 62, sliding table; 63, bottom connecting rail; 64, transverse groove; 65, counterweight block; 66, first shearing knife; 67, second shearing knife; 68, hydraulic column; 69, side shearing knife; 60, processing table. Specific implementation mode

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 12 The present invention provides a technical solution: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, it includes a pre-dividing mechanism 4 for positioning and pre-segmenting the H-shaped steel, and a limiting block 5 is arranged on the top of the pre-dividing mechanism 4, wherein the limiting block 5 is used for limiting the position and preventing the top of the H-shaped steel from falling off; A shearing frame 2 is arranged outside the pre-dividing mechanism 4, and a driving member 3 is fixedly installed outside the shearing frame 2, wherein the driving member 3 is used to drive the shearing knife to shear the H-shaped steel; The bottom of the shearing frame 2 is slidably adapted with the fixing rail 1 , wherein the shearing frame 2 is slidable.

[0037] The shearing mechanism 6 is used for performing tangential and inverse shearing blowing on the H-shaped steel, and the shearing mechanism 6 is arranged inside the shearing frame 2.

[0038] The pre-dividing mechanism 4 includes a conveying platform 41, the center of the top of the conveying platform 41 is fixedly connected to the limit block 5, a servo motor 42 is fixedly installed on the outer side of the conveying platform 41, and the output end of the servo motor 42 is connected to a transmission component 43 through a rotating shaft; The transmission assembly 43 includes a transmission belt and a rotating roller, and the center of the transmission roller is connected to the rotating shaft, while the transmission belt is transmission-connected to the center of the conveying platform 41; A steel piece 44 is slidably adapted at the center of the conveying platform 41, wherein the steel piece 44 is conveyed forward by the conveyor belt; The outer end face of the conveying platform 41 is fixedly installed with a roller sleeve 45, and a positioning roller 46 is slidably fitted inside the roller sleeve 45. The positioning roller 46 is used for the preliminary limiting and position adjustment of the steel workpiece 44. In addition, one end of the positioning roller 46 close to the steel workpiece 44 is spherical. The steel workpiece 44 is inserted into the inside of the center of the conveying platform 41 and placed on the conveyor belt inside the conveying assembly 43. Then, the positioning roller 46 is moved along the roller sleeve 45 towards the center, and the steel workpiece 44 that protrudes a part is squeezed, so that the steel workpiece 44 will be completely received into the conveying platform 41. At the same time, when the steel workpiece 44 is not completely received into the inside of the conveying platform 41, the operator can manually push the steel workpiece 44 into it. At this time, the positioning roller 46 will limit the steel workpiece 44. In addition, the positioning roller 46 also plays a role in the preliminary positioning and limiting of the steel workpiece 44.

[0039] The frictional force between the conveyor belt and the steel workpiece 44 is much greater than the limiting extrusion force of the positioning roller 46 on the steel workpiece 44. Therefore, when the conveyor belt starts, the steel workpiece 44 will push the positioning roller 46 towards both sides. In addition, the surface of the positioning roller 46 in contact with the steel workpiece 44 is spherical.

[0040] A gear-rack bidirectional assembly 47 is fixedly installed on the outside of the conveying platform 41. The two ends of the gear-rack bidirectional assembly 47 are respectively provided with an external connecting rod 48 and a bent rod 49. One end of the external connecting rod 48 away from the gear-rack bidirectional assembly 47 is fixedly connected to the shearing frame 2. The gear-rack bidirectional assembly 47 includes a central gear and racks arranged on both sides of the central gear and meshing with it. The external connecting rod 48 and the bent rod 49 are respectively fixedly connected to the two racks. A groove is formed inside the conveying platform 41, and an electric push rod 40 is fixedly installed in the groove. The output end of the electric push rod 40 is fixedly connected with a slider 401, and the slider 401 is slidably fitted in the groove. A positioning hemisphere 403 is used for positioning the slider 401 and is fitted with the slider 401 in an embedded manner. One end of the positioning hemisphere 403 away from the slider 401 is fixedly connected with a return spring 404. The positioning hemisphere 403 is slidably fitted inside the conveying platform 41. One end of the return spring 404 away from the positioning hemisphere 403 is fixedly connected with the conveying platform 41. Both ends of the slider 401 are extrusion-fitted with the positioning hemisphere 403. The positioning hemisphere 403 is made of thermoplastic rubber material. Therefore, when the slider 401 moves to the position where the positioning hemisphere 403 is located, it will first squeeze the positioning hemisphere 403 to compress it, and then the positioning hemisphere 403 will recover and be embedded with the slider 401 to limit the slider 401. In addition, the return spring 404 connected to the other end of the positioning hemisphere 403 plays a role in distance compensation and resetting the positioning hemisphere 403.

[0041] On one side of the slider 401 away from the positioning hemisphere 403, a partition plate 402 is fixedly connected. The fitting plate 407 is used for the protection treatment during the equal division and shearing of the steel workpiece 44, and is fitted inside both sides of the steel workpiece 44; wherein the number of the positioning hemispheres 403 and the return springs 404 is several and is divided into multiple groups, and the distance between multiple positioning hemispheres 403 and return springs 404 in one group is fixed, so as to play a role in dividing the H-shaped steel with different lengths during shearing. In addition, the number of the electric push rods 40 is one, and the number of the sliders 401, the partition plates 402 and the telescopic rods 406 is several. In addition, the electric push rod 40 and several telescopic rods 406 are connected together by a multi-connected sleeve rod 405.

[0042] One side of the fitting plate 407 away from the steel workpiece 44 is fixedly connected to the partition plate 402. In addition, the fitting plate 407 is the general name of various different lengths of plates. One end of the slider 401 away from the electric push rod 40 is fixedly installed with a telescopic rod 406. The outer side of the output end of the telescopic rod 406 is fixedly connected with a multi-connected sleeve rod 405. One end of the multi-connected sleeve rod 405 away from the telescopic rod 406 is fixedly connected to the output end of the electric push rod 40; by starting the electric push rod 40, the slider 401 connected to its output end will move outward along the groove opened inside the conveying table 41. The outer side of the slider 401 is connected to the partition plate 402, so the partition plate 402 will be in the same position as the slider 401. In addition, one end of the slider 401 away from the electric push rod 40 is fixedly connected to the telescopic rod 406, so the telescopic rod 406 will also move outward accordingly. At the same time, the output end of the telescopic rod 406 is also connected to the second slider 401, and the output end of the telescopic rod 406 is also connected to the electric push rod 40 through the multi-connected sleeve rod 405. Therefore, when the electric push rod 40 extends outward by fifty centimeters, the telescopic rod 406 will also extend outward by fifty centimeters, so as to play a role in keeping the total length of the electric push rod 40 and the telescopic rod 406 always consistent and making preparations for the subsequent segmentation of the H-shaped steel.

[0043] Among them, the multi-connected sleeve rod 405 is used to keep the output ends of the electric push rod 40 and the telescopic rod 406 at the same length. By the elongation of the electric push rod 40, the distance between several partition plates 402 will become longer and remain the same. Then, the fitting plates 407 with the same length as the distance between the partition plates 402 are pushed in from both ends of the conveying table 41 until they are adapted to the cavities on both sides of the steel part 44, and there is a distance equal to the width of the partition plate 402 between each pair of fitting plates 407, and this distance is the reserved cutting position of the steel part 44. The fitting plate 407 has two functions: the first is to accurately divide the steel part 44 into equal parts, facilitating subsequent accurate shearing; the second is that since the two sides of the horizontally placed steel part 44 have cavities, the fitting plate 407 will fill and supplement the cavities, preventing deformation or tearing during shearing and improving the shearing efficiency and tool life.

[0044] As Figure 10 , Figure 11 and Figure 12 shown, the shearing mechanism 6 includes a processing table 60, where the processing table 60 is arranged directly below and connected to the shearing frame 2, and a slit is opened at the center of the processing table 60; the distance between the part with the slit opened at the center of the processing table 60 and the nearest partition plate 402 is the same as the distance between each pair of partition plates 402. At the same time, when the distance between each pair of partition plates 402 is lengthened, the bending rod 49 fixedly connected to the outside of the first partition plate 402 will move outward accordingly, and the other end of the bending rod 49 is connected to a rack inside the gear-rack bidirectional assembly 47. The gear-rack bidirectional assembly 47 consists of a rotating gear at the center and two racks symmetrically arranged on both sides of the rotating gear, and the other rack is connected to the external rod 48, and the other end of the external rod 48 is connected to the shearing frame 2. Therefore, when the partition plate 402 moves outward, through the force transmission of the gear-rack bidirectional assembly 47, the shearing frame 2 will drive the processing table 60 to move in the opposite direction, so as to make the distance between the processing table 60 and the partition plate 402 the same as the distance between each pair of partition plates 402. The function of maintaining the equality is to facilitate the operator or the control device to accurately place the position of the steel part 44 to be cut at the central slit of the processing table 60.

[0045] Both sides of the inner cavity of the shearing frame 2 are connected with a lead screw 61 through bearings, and the lead screw 61 is controlled by the driving part 3 for starting and stopping; The outside of the lead screw 61 is threadedly connected with a sliding table 62. The bottom of the sliding table 62 is fixedly installed with a bottom track 63, and a transverse groove 64 is opened on the outside of the bottom track 63. A counterweight 65 is slidably fitted inside the transverse groove 64; the counterweight 65 serves to keep the sliding table 62 in position balance and force balance.

[0046] Among them, the counterweight 65 is used to balance the weight and avoid power imbalance. By starting the driving member 3, the lead screw 61 rotates forward. The two sliding platforms 62 threadedly connected to the lead screw 61 will move in two directions simultaneously, one moving downward and the other moving upward. A bottom connecting rail 63 is fixedly installed at the bottom of the sliding platform 62. Inside the bottom connecting rail 63, a first cutting knife 66 and a second cutting knife 67 are respectively slidably fitted. The first cutting knife 66 is used to cut the horizontally placed steel member 44, and the second cutting knife 67 is used to cut the square steel member 44. The operation method of the second cutting knife 67 is as follows: First, start the hydraulic cylinder 68 so that the side cutting knife 69 connected to its output end initially cuts the flange of the steel member 44, and then use the second cutting knife 67 to cut the central web of the steel member 44.

[0047] The bottom of the bottom connecting rail 63 is respectively slidably fitted with a first cutting knife 66 and a second cutting knife 67, and both the first cutting knife 66 and the second cutting knife 67 are fixedly installed on the bottom connecting rail 63 through fasteners; Hydraulic cylinders 68 are symmetrically connected to both sides of the second cutting knife 67, and the bottom of the output end of the hydraulic cylinder 68 is fixedly connected to a side cutting knife 69; Among them, the first cutting knife 66 is used to cut the horizontally placed H-shaped steel, and the second cutting knife 67 and the side cutting knife 69 are used to cut the square H-shaped steel.

[0048] When the present invention is in use: First, insert the steel member 44 into the center of the conveying table 41 and place it on the conveyor belt inside the conveying assembly 43. Then, move the positioning roller 46 along the roller sleeve 45 towards the center and squeeze the protruding part of the steel member 44 so that the steel member 44 is completely received into the conveying table 41. At the same time, when the steel member 44 is not completely received into the conveying table 41, the operator can manually push the steel member 44 into it, and at this time, the positioning roller 46 will limit the steel member 44. By starting the electric push rod 40, the slider 401 connected to its output end will move outward along the groove opened inside the conveying table 41. The outside of the slider 401 is connected to the partition plate 402, so the partition plate 402 will be in the same position as the slider 401. In addition, one end of the slider 401 away from the electric push rod 40 is fixedly connected to a telescopic rod 406, so the telescopic rod 406 will also move outward accordingly. At the same time, the output end of the telescopic rod 406 is also connected to the second slider 401, and the output end of the telescopic rod 406 is also connected to the electric push rod 40 through a multi-link rod 405. Therefore, when the electric push rod 40 extends outward by fifty centimeters, the telescopic rod 406 will also extend outward by fifty centimeters.

[0049] Both ends of the slider 401 are squeezed and adapted with positioning hemispheres 403. Therefore, when the slider 401 moves to the position where the positioning hemispheres 403 are located, it will first squeeze the positioning hemispheres 403 to compress them, and then the positioning hemispheres 403 will recover and fit with the slider 401 to limit the slider 401. By the elongation of the electric push rod 40, the distance between several partition plates 402 will become longer and remain the same. Then, the fitting plates 407 with the same length as the distance between the partition plates 402 are pushed inward from both ends of the conveying table 41 until they are adapted to the cavities on both sides of the steel piece 44, and there is a distance equal to the width of the partition plate 402 between each pair of fitting plates 407, and this distance is the reserved cutting position of the steel piece 44.

[0050] The distance between the part with a slit at the center of the processing table 60 and the nearest partition plate 402 is the same as the distance between each pair of partition plates 402. At the same time, when the distance between each pair of partition plates 402 is lengthened, the bending rod 49 fixedly connected to the outside of the first partition plate 402 will move outward accordingly. The other end of the bending rod 49 is connected to a rack inside the gear-rack bidirectional assembly 47. The gear-rack bidirectional assembly 47 consists of a rotating gear at the center and two racks symmetrically arranged on both sides of the rotating gear. The other rack is connected to the external rod 48, and the other end of the external rod 48 is connected to the shearing frame 2. Therefore, when the partition plate 402 moves outward, through the force transmission of the gear-rack bidirectional assembly 47, the shearing frame 2 will drive the processing table 60 to move in the opposite direction.

[0051] By starting the driving member 3, the lead screw 61 rotates forward, and the two sliding platforms 62 threadedly connected to the lead screw 61 will move simultaneously, one downward and one upward. The bottom of the sliding platform 62 is fixedly installed with a bottom rail 63, and a first shearing knife 66 and a second shearing knife 67 are respectively slidably adapted inside the bottom rail 63. The first shearing knife 66 is used to shear the horizontally placed steel piece 44, and the second shearing knife 67 is used to shear the square steel piece 44. The operation method of the second shearing knife 67 is: first start the hydraulic cylinder 68 to make the side shearing knife 69 connected to its output end initially shear the flange of the steel piece 44, and then use the second shearing knife 67 to shear the central abdomen of the steel piece 44.

[0052] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Those of ordinary skill in the art, starting from the above concepts and without creative labor, all kinds of transformations made fall within the scope of protection of the present invention.

Claims

1. A shearing machine for H-beam processing, characterized in that, Including: A pre-separation mechanism for positioning and pre-segmenting H-shaped steel. A limit block is provided at the top of the pre-separation mechanism, and the limit block is used for limiting and preventing the H-shaped steel from falling off at the top; A shearing frame is arranged outside the pre-separation mechanism, and a driving member is fixedly installed outside the shearing frame. The driving member is used to drive a shearing knife to cut the H-shaped steel; A fixed rail is slidably fitted at the bottom of the shearing frame, and the shearing frame is slidable; A shearing mechanism for performing forward cutting and reverse cutting blowing force on the H-shaped steel. The shearing mechanism is arranged inside the shearing frame.

2. The shearing machine for H-beam processing according to claim 1, wherein: The pre-separation mechanism includes a conveying table. The center of the top of the conveying table is fixedly connected to the limit block. A servo motor is fixedly installed outside the conveying table, and the output end of the servo motor is connected to a transmission assembly through a rotating shaft.

3. The shearing machine for H-beam processing according to claim 2, characterized in that: The transmission assembly includes a conveyor belt and a rotating roller. The center part of the rotating roller is connected to the rotating shaft, and the conveyor belt is drivingly connected to the center of the inside of the conveying table; A steel member is slidably fitted at the center of the conveying table, and the steel member is conveyed forward by the conveyor belt.

4. The shearing machine for H-beam processing according to claim 3, wherein: Roller sleeves are fixedly installed on the outer end face of the conveying table. Positioning rollers are slidably fitted inside the roller sleeves. The positioning rollers are used for preliminary limiting and position adjustment of the steel member. One end of the positioning roller close to the steel member is spherical.

5. The shearing machine for H-beam processing according to claim 2, wherein: A gear-rack bidirectional assembly is fixedly installed outside the conveying table. The two ends of the gear-rack bidirectional assembly are respectively provided with an external connecting rod and a bent rod; One end of the external connecting rod far from the gear-rack bidirectional assembly is fixedly connected to the shearing frame; The gear-rack bidirectional assembly includes a central gear and racks arranged on both sides of the central gear and meshing with it. The external connecting rod and the bent rod are respectively fixedly connected to the two racks.

6. The cutting machine for H-shaped steel processing according to claim 3, characterized in that: A groove is formed inside the conveying table, and an electric push rod is fixedly installed in the groove. The output end of the electric push rod is fixedly connected to a slider, and the slider is slidably fitted in the groove; A positioning hemisphere for positioning the slider and fittingly engaging with the slider; One end of the positioning hemisphere far from the slider is fixedly connected to a return spring. The positioning hemisphere is slidably fitted inside the conveying table, and one end of the return spring far from the positioning hemisphere is fixedly connected to the conveying table.

7. The cutting machine for H-beam processing according to claim 6, characterized in that: A partition plate is fixedly connected to the side of the slider far from the positioning hemisphere; A fitting plate for protecting the steel member during equal division and shearing processes and fittingly engaging inside both sides of the steel member; One side of the fitting plate far from the steel member is fixedly connected to the partition plate. In addition, the fitting plate is a general term for various plates of different lengths.

8. The cutting machine for H-beam processing according to claim 6, characterized in that: An expansion rod is fixedly installed at the end of the slider far from the electric push rod. A multi-connected sleeve rod is fixedly connected to the outside of the output end of the expansion rod. One end of the multi-connected sleeve rod far from the expansion rod is fixedly connected to the output end of the electric push rod; The multi-connected sleeve rod is used to keep the output ends of the electric push rod and the expansion rod at the same length.

9. The cutting machine for H-beam processing according to claim 1, characterized in that: The shearing mechanism includes a processing table, where the processing table is arranged directly below and connected to the shearing frame, and a slit is provided at the center of the processing table; Both sides of the inner cavity of the shearing frame are connected with lead screws through bearings, and the lead screws are controlled and started and stopped by a driving member.

10. The cutting machine for H-beam processing according to claim 9, characterized in that: A sliding table is threadedly connected to the outer side of the lead screw. A bottom connecting rail is fixedly installed at the bottom of the sliding table. A transverse groove is provided on the outer side of the bottom connecting rail, and a counterweight block is slidably fitted inside the transverse groove; The counterweight block is used to balance the weight to avoid force imbalance.

11. A shearing machine for H-beam processing according to claim 10, characterized in that: A first shearing knife and a second shearing knife are respectively slidably fitted to the bottom of the bottom connecting rail, and both the first shearing knife and the second shearing knife are fixedly installed on the bottom connecting rail through fasteners; Hydraulic columns are symmetrically connected to both sides of the second shearing knife, and the bottom of the output end of the hydraulic column is fixedly connected with a side shearing knife; The first shearing knife is used to cut the horizontally placed H-shaped steel, while the second shearing knife and the side shearing knife are used to cut the square H-shaped steel.

Images