Bending machine for thick steel plate

Abstract

The utility model discloses a bending machine for a thick steel plate, which relates to the technical field of bending machines, and comprises a bearing frame, a hollow placing table fixedly arranged on the bottom surface of the inner side of the bearing frame, and a pressing and bending component fixed on the bearing frame, and further comprises an adjusting unit and a limiting unit which are arranged on the placing table, the adjusting unit comprises a screw rod, a bearing seat, a positioning table, a rotating shaft and a roller; the screw rod is movably arranged on the inner wall of one end of the placing table; the limiting unit comprises an adjusting screw rod, a pressing plate and a sliding rod. In the utility model, the bearing seat in threaded connection with the screw rod can translate and adjust on the strip-shaped through groove to help the positioning table translate, a thick steel plate to be processed can translate along with the positioning table to adjust the bending position for positioning, and the rotating shaft can drive the roller to roll on the placing table to cooperate with the translation process of the positioning table and provide stable auxiliary support for the positioning table. According to the equipment, the operation cost of the steel plate bending position positioning structure is low, and the positioning table is stably stressed during bending operation.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, and particularly relates to a bending machine for thick steel plates. Background Technique

[0002] A bending machine is an important device for bending and forming steel plates, which is often used in the production field of steel workpieces. Its structure mainly includes a pressing device, a supporting die and a power system. During operation, the steel plate is placed on the upper side of the supporting die, and the power system drives the pressing device to apply pressure to the steel plate, so that the steel plate is bent to different degrees. Before pressing, the bending position of the steel plate needs to be determined manually, and the steel plate may be skewed, resulting in deviation of the bending position, which has an adverse impact on the processing efficiency and quality of products.

[0003] The publication (announcement) number is CN219597763U, which discloses a steel plate bending machine, including a base, a support table, a support frame, a pressing assembly and a bending assembly. A positioning and guiding assembly is arranged at the top end of the support table. The positioning and guiding assembly includes a first installation groove opened at the top end of the support table. A threaded rod is rotatably connected to the inner side wall of the first installation groove. A positioning plate is sleeved on the outer part of the threaded rod. One end of the support table is provided with a first driving motor, and the output end of the first driving motor penetrates through the support table and is connected to the threaded rod. A second installation groove is opened at one end of the support table. A bidirectional screw rod is rotatably connected to the inner side wall of the second installation groove. L-shaped plates are symmetrically sleeved on the outer part of the bidirectional screw rod. A second driving motor is installed at one end of the support table. The beneficial effect of the utility model is to reduce the workload of operators, simplify the processing procedure, improve the processing efficiency and quality, and at the same time expand the application range of the equipment and improve the practicability of the equipment.

[0004] Although the above scheme can locate the bending position of the steel plate, the positioning operation and locking operation of the bending position of the steel plate require the cooperation of a motor and a hydraulic component, and its operation cost is high, and the fixed position of the hydraulic component makes the limited and locked area of the steel plate rigid and limited. For this reason, we propose a bending machine for thick steel plates. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a bending machine for thick steel plates. By setting an adjustment unit and a limiting unit, the problems that the positioning operation and locking operation of the bending position of the steel plate require the cooperation of a motor and a hydraulic component, and its operation cost is high, and the fixed position of the hydraulic component makes the limited and locked area of the steel plate rigid and limited are solved.

[0006] To solve the above technical problems, the utility model is realized through the following technical scheme: A bending machine for thick steel plates includes a bearing frame, a placing table which is fixedly arranged on the inner bottom surface of the bearing frame and is hollow inside, and a pressing and bending component fixed on the bearing frame, and further includes: an adjustment unit and a limiting unit arranged on the placing table;

[0007] The adjusting unit includes a lead screw, a bearing seat, a positioning table, a rotating shaft and a roller. The lead screw is movably arranged on the inner wall at one end of the placing table. A strip-shaped through groove is formed on the top surface of the placing table. The bearing seat is threadedly connected to the lead screw and is located on the strip-shaped through groove, and the bearing seat is in a "cross" shape. The positioning table is in a "U" shape and is fixedly arranged at the top end of the bearing seat. The two rotating shafts are symmetrically and movably arranged on the side surfaces at the bottom end of the positioning table. The roller is fixedly arranged on the end surface of the rotating shaft and is located on the top surface of the placing table. One end of the lead screw that movably extends to the outside of the placing table is fixedly provided with a turntable;

[0008] The limiting unit includes an adjusting screw, a pressing plate and a sliding rod. The adjusting screw is threadedly connected to the center of the top surface of the positioning table. The top surface of the pressing plate is sleeved and installed on the end surface of the adjusting screw through a bearing and is located inside the positioning table. A plurality of the sliding rods are respectively fixedly arranged at the corners of the top surface of the pressing plate, and the sliding rods movably penetrate through the inner top surface of the positioning table and extend to the outside thereof.

[0009] Preferably, the adjusting unit further includes a guide rod. The guide rod is fixedly arranged on the inner wall at the other end of the placing table and movably penetrates through the bearing seat.

[0010] Preferably, the lead screw and the rotating shaft are arranged perpendicular to each other.

[0011] Preferably, the plurality of sliding rods are arranged at equal intervals.

[0012] Preferably, the pressing and bending assembly includes a hydraulic cylinder and an abutting cylinder. The hydraulic cylinder is fixedly installed on the top surface at one end inside the bearing frame. The abutting cylinder is fixedly installed at the output end of the hydraulic cylinder.

[0013] Preferably, the pressing and bending assembly further includes a placing plate and an arc-shaped plate. The end surface of the placing plate is in an "L" shape and is fixedly arranged at one end of the placing table close to the abutting cylinder. The arc-shaped plate is movably arranged on the concave surface of the placing plate, and a right-angle part matching the concave surface of the placing plate is arranged on the arc-shaped plate.

[0014] Preferably, feet are fixedly arranged at the corners of the bottom surface of the bearing frame.

[0015] Compared with the prior art, the bending machine for thick steel plates of the present utility model has the following beneficial effects:

[0016] 1. In the present utility model, by providing an adjustment unit, before the thick steel plate to be processed is locked on the positioning table, the screw rod can be controlled to rotate forward and backward on the placement table by holding the turntable. The carrier seat, which is threadedly connected to the screw rod and is in a "cross" shape, can be translated and adjusted on the strip-shaped through groove to help the positioning table in a "U" shape to be translated. The thick steel plate to be processed can be translated with the positioning table to adjust the bending position for positioning. A guide rod is provided to guide the sliding and translation of the carrier seat to cooperate with the movement of the positioning table and provide auxiliary support for it. The rotating shafts symmetrically and movably arranged on the bottom side surface of the positioning table can drive the rollers to roll on the placement table to cooperate with the translation process of the positioning table and provide stable auxiliary support for the positioning table. The structure for positioning the bending position of the steel plate by the equipment has a low operating cost, and the positioning table is stressed stably during the bending operation.

[0017] 2. In the present utility model, by providing a limiting unit, after the thick steel plate to be processed is placed on the inner bottom surface of the positioning table, by holding and rotating the adjustment screw rod threadedly connected to the center of the top surface of the positioning table, the pressing plate sleeved on the end surface of the adjustment screw rod through a bearing can be adjusted to rise and fall inside the positioning table without rotating with the adjustment screw rod. A plurality of sliding rods fixedly arranged at the corners of the top surface of the pressing plate and movably penetrating the inner top surface of the positioning table can slide and rise and fall on the positioning table to cooperate with the lifting adjustment of the pressing plate, and the placement angle of the pressing plate is positioned. After the pressing plate is adjusted and moved downward, it can contact the thick steel plate to be processed over a large area and press it tightly on the positioning table. The equipment makes the steel plate limiting and locking area flexible and the locking effect stable through the overall movement of the limiting unit along with the positioning table. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of a bending machine for thick steel plates according to the present utility model;

[0020] Figure 2 It is a front view structure schematic diagram of a bending machine for thick steel plates according to the present utility model;

[0021] Figure 3 For the present utility model Figure 2 It is a sectional view structure schematic diagram at A-A in the present utility model;

[0022] Figure 4 For the present utility model Figure 3 It is a sectional view structure schematic diagram at B-B in the present utility model;

[0023] Figure 5This is a schematic side view structure diagram of a bending machine for thick steel plates of the present utility model.

[0024] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Bearing frame;

[0026] 2. Adjusting unit; 201. Lead screw; 202. Bearing seat; 203. Positioning table; 204. Rotating shaft; 205. Roller; 206. Guide rod;

[0027] 3. Limiting unit; 301. Adjusting screw; 302. Pressure plate; 303. Slide rod;

[0028] 4. Placing table;

[0029] 5. Pressing and bending assembly; 501. Hydraulic cylinder; 502. Abutting cylinder; 503. Placing plate; 504. Arc plate;

[0030] 6. Support feet. Detailed implementation manners

[0031] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment

[0034] As Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown in the figure, a bending machine for thick steel plates includes a bearing frame 1, a placement table 4 which is fixedly arranged on the inner bottom surface of the bearing frame 1 and has a hollow interior, and a pressing and bending assembly 5 fixed on the bearing frame 1. It further includes: an adjustment unit 2 and a limiting unit 3 arranged on the placement table 4;

[0035] The adjustment unit 2 includes a lead screw 201, a bearing seat 202, a positioning table 203, a rotating shaft 204 and a roller 205. The lead screw 201 is movably arranged on the inner wall of one end of the placement table 4. A strip-shaped through groove is formed on the top surface of the placement table 4. The bearing seat 202 is threadedly connected to the lead screw 201 and is located on the strip-shaped through groove, and the bearing seat 202 is in a "cross" shape. The positioning table 203 is in a "U" shape and is fixedly arranged at the top end of the bearing seat 202. Two rotating shafts 204 are symmetrically and movably arranged on the side surface of the bottom end of the positioning table 203. The roller 205 is fixedly arranged on the end face of the rotating shaft 204 and is located on the top surface of the placement table 4;

[0036] The limiting unit 3 includes an adjusting screw 301, a pressing plate 302 and a sliding rod 303. The adjusting screw 301 is threadedly connected to the center of the top surface of the positioning table 203. The top surface of the pressing plate 302 is sleeved and installed on the end face of the adjusting screw 301 through a bearing and is located inside the positioning table 203. A plurality of sliding rods 303 are respectively fixedly arranged at the corners of the top surface of the pressing plate 302, and the sliding rods 303 movably penetrate through the inner top surface of the positioning table 203 and extend to the outside thereof.

[0037] Further, the adjustment unit 2 further includes a guide rod 206. The guide rod 206 is fixedly arranged on the inner wall of the other end of the placement table 4 and movably penetrates through the bearing seat 202.

[0038] Further, the lead screw 201 and the rotating shaft 204 are arranged perpendicular to each other.

[0039] Further, a plurality of sliding rods 303 are arranged at equal intervals.

[0040] Further, the pressing and bending assembly 5 includes a hydraulic cylinder 501 and an abutting cylinder 502. The hydraulic cylinder 501 is fixedly installed on the top surface of one end inside the bearing frame 1. The abutting cylinder 502 is fixedly installed on the output end of the hydraulic cylinder 501.

[0041] Further, the pressing and bending assembly 5 further includes a placement plate 503 and an arc plate 504. The end face of the placement plate 503 is in an "L" shape and is fixedly arranged at one end of the placement table 4 close to the abutting cylinder 502. The arc plate 504 is movably arranged on the concave surface of the placement plate 503, and a right-angle part matching the concave surface of the placement plate 503 is arranged on the arc plate 504.

[0042] Further, feet 6 are fixedly arranged at the corners of the bottom surface of the bearing frame 1.

[0043] By adjusting the unit 2, the positioning structure of the equipment for the bending position of the steel plate has a low operating cost, and the positioning table 203 is stable in force during the bending operation. Embodiment

[0044] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a bending machine for thick steel plates includes a bearing frame 1, a placing table 4 which is fixedly arranged on the inner bottom surface of the bearing frame 1 and has a hollow interior, and a pressing and bending assembly 5 fixed on the bearing frame 1. It further includes: an adjusting unit 2 and a limiting unit 3 arranged on the placing table 4;

[0045] The adjusting unit 2 includes a lead screw 201, a bearing seat 202, a positioning table 203, a rotating shaft 204 and a roller 205. The lead screw 201 is movably arranged on the inner wall at one end of the placing table 4. A strip-shaped through groove is opened on the top surface of the placing table 4. The bearing seat 202 is threadedly connected to the lead screw 201 and is located on the strip-shaped through groove, and the bearing seat 202 is in a "cross" shape. The positioning table 203 is in a "U" shape and is fixedly arranged at the top end of the bearing seat 202. Two rotating shafts 204 are symmetrically and movably arranged on the side surface at the bottom end of the positioning table 203. The roller 205 is fixedly arranged on the end surface of the rotating shaft 204 and is located on the top surface of the placing table 4;

[0046] The limiting unit 3 includes an adjusting screw 301, a pressing plate 302 and a sliding rod 303. The adjusting screw 301 is threadedly connected to the center of the top surface of the positioning table 203. The top surface of the pressing plate 302 is sleeved and installed on the end surface of the adjusting screw 301 through a bearing and is located inside the positioning table 203. A plurality of sliding rods 303 are respectively fixedly arranged at the corners of the top surface of the pressing plate 302, and the sliding rods 303 movably penetrate through the inner top surface of the positioning table 203 and extend to the outside thereof.

[0047] Further, the adjusting unit 2 further includes a guide rod 206. The guide rod 206 is fixedly arranged on the inner wall at the other end of the placing table 4 and movably penetrates through the bearing seat 202.

[0048] Further, the lead screw 201 and the rotating shaft 204 are arranged perpendicular to each other.

[0049] Further, a plurality of sliding rods 303 are arranged at equal intervals.

[0050] Further, the pressing and bending assembly 5 includes a hydraulic cylinder 501 and an abutting cylinder 502. The hydraulic cylinder 501 is fixedly installed on the top surface at one end inside the bearing frame 1, and the abutting cylinder 502 is fixedly installed at the output end of the hydraulic cylinder 501.

[0051] Further, the pressing and bending assembly 5 further includes a placing plate 503 and an arc plate 504. The end face of the placing plate 503 is in an "L" shape and is fixedly arranged at one end of the placing table 4 close to the abutting cylinder 502. The arc plate 504 is movably arranged on the concave surface of the placing plate 503, and a right-angle part matching the concave surface of the placing plate 503 is arranged on the arc plate 504.

[0052] Further, feet 6 are fixedly arranged at the bottom corners of the bottom surface of the carrier 1.

[0053] The steel plate limiting and locking area is made flexible and the locking effect is stable through the limiting unit 3.

[0054] The working principle of the present utility model is as follows:

[0055] Grip the turntable to control the forward and reverse rotation of the lead screw 201 on the placing table 4. The carrier seat 202, which is in a "cross" shape and is threadedly connected to the lead screw 201, translates and adjusts on the strip-shaped through groove to help the positioning table 203 in a "U" shape translate. The thick steel plate to be processed translates with the positioning table 203 to adjust the bending position for positioning. The guide rod 206 is provided to guide the sliding and translation of the carrier seat 202 to cooperate with the movement of the positioning table 203 and provide auxiliary support for it. The rotating shafts 204 symmetrically and movably arranged on the bottom side surfaces of the positioning table 203 drive the rollers 205 to roll on the placing table 4 to cooperate with the translation process of the positioning table 203 and provide stable auxiliary support for the positioning table 203. After the thick steel plate to be processed is placed on the inner bottom surface of the positioning table 203, grip and rotate the adjusting screw 301 threadedly connected to the center of the top surface of the positioning table 203. The pressing plate 302 sleeved on the end face of the adjusting screw 301 through a bearing does not rotate with the adjusting screw 301 and adjusts up and down inside the positioning table 203. A plurality of sliding rods 303 fixedly arranged at the top corners of the top surface of the pressing plate 302 and movably penetrating the inner top surface of the positioning table 203 slide up and down on the positioning table 203 to cooperate with the up and down movement of the pressing plate 302, and the placing angle of the pressing plate 302 is positioned. After the pressing plate 302 moves down, it contacts the thick steel plate to be processed over a large area and presses it against the positioning table 203.

[0056] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A bending machine for thick steel plates, comprising a support frame (1), a placing table (4) fixedly arranged on the inner bottom surface of the support frame (1) and having a hollow interior, and a pressing and bending assembly (5) fixed on the support frame (1), characterized in that: Further included are: An adjustment unit (2) and a limiting unit (3) arranged on a placement table (4); The adjustment unit (2) includes a lead screw (201), a bearing seat (202), a positioning table (203), a rotating shaft (204), and a roller (205). The lead screw (201) is movably arranged on the inner wall at one end of the placement table (4). A strip-shaped through groove is formed on the top surface of the placement table (4). The bearing seat (202) is threadedly connected to the lead screw (201) and is located on the strip-shaped through groove. The bearing seat (202) is in a "cross" shape. The positioning table (203) is in a "U" shape and is fixedly arranged at the top end of the bearing seat (202). The two rotating shafts (204) are symmetrically and movably arranged on the side surfaces at the bottom end of the positioning table (203). The roller (205) is fixedly arranged on the end face of the rotating shaft (204) and is located on the top surface of the placement table (4); The limiting unit (3) includes an adjustment screw (301), a pressing plate (302), and a sliding rod (303). The adjustment screw (301) is threadedly connected to the center of the top surface of the positioning table (203). The top surface of the pressing plate (302) is sleeved and installed on the end face of the adjustment screw (301) through a bearing and is located inside the positioning table (203). A plurality of sliding rods (303) are respectively fixedly arranged at the corners of the top surface of the pressing plate (302). The sliding rods (303) movably penetrate through the inner top surface of the positioning table (203) and extend to the outside thereof.

2. A thick steel plate bending machine according to claim 1, characterized in that: The adjustment unit (2) further includes a guide rod (206). The guide rod (206) is fixedly arranged on the inner wall at the other end of the placement table (4) and movably penetrates through the bearing seat (202).

3. A thick steel plate bending machine according to claim 1, characterized in that: The lead screw (201) and the rotating shaft (204) are arranged perpendicular to each other.

4. A thick steel plate bending machine according to claim 1, characterized in that: The plurality of sliding rods (303) are arranged at equal intervals.

5. The thick steel plate bending machine according to claim 1, characterized in that: The pressing and bending assembly (5) includes a hydraulic cylinder (501) and an abutting cylinder (502). The hydraulic cylinder (501) is fixedly installed on the top surface at one end inside the bearing frame (1). The abutting cylinder (502) is fixedly installed at the output end of the hydraulic cylinder (501).

6. A thick steel plate bending machine according to claim 5, characterized in that: The pressing and bending assembly (5) further includes a placement plate (503) and an arc-shaped plate (504). The end face of the placement plate (503) is in an "L" shape and is fixedly arranged at one end of the placement table (4) close to the abutting cylinder (502). The arc-shaped plate (504) is movably arranged on the concave surface of the placement plate (503). A right-angle part matching the concave surface of the placement plate (503) is arranged on the arc-shaped plate (504).

7. A thick steel plate bending machine according to claim 1, characterized in that: Support feet (6) are fixedly arranged at the corners of the bottom surface of the bearing frame (1).

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