Steel bar bender with multi-bending-angle selection function

Abstract

The utility model discloses a steel bar bender with multiple bending angle selections. The steel bar bender comprises a box body, a limiting assembly arranged on the upper end face of the box body and a bending assembly arranged in an inner cavity of the box body. According to the steel bar bending device, steel bars are firstly fixed through the limiting assembly, then the steel bars are bent through the bending assembly, the steel bars can be bent twice in the same direction or in the opposite direction and at different angles, the steel bars which are not bent straightly can be bent, the bending requirements of different building components are met, and the bending efficiency is improved. The construction efficiency, the engineering quality and the material utilization rate are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar processing equipment, and in particular relates to a steel bar bending machine with multiple bending angle options. Background Art

[0002] The rebar bending machine is a device specially used for bending rebar. Its design and production process are based on complex mechanical processing technology and advanced technology of CNC rebar processing equipment. Its working principle is to use the mechanical structure of the machine to pass the rebar through the bending path according to the required bending angle and bending moment to bend it into a specific shape and angle.

[0003] The patent with application number CN202021805052.3 discloses a steel bar bending machine, which positions the steel bar by setting a limit plate, thereby improving the bending accuracy of the steel bar. The baffle plate is pressed against one end of the steel bar passing through the working disc, so that the length of the steel bar inserted is consistent each time the steel bar is bent. At the same time, the limit assembly is used to improve the stability of the device during bending. However, the bending angle of the steel bar cannot be changed according to the needs of the site, which is not conducive to bending the steel bar, and the existing steel bar bending machine cannot bend steel bars that are not straight. Utility Model Content

[0004] The purpose of the utility model is to provide a steel bar bending machine with multiple bending angle options. The utility model can realize bending the steel bars twice in the same or opposite directions and bending at different angles, and can fix the steel bars through limiting components and also bend the steel bars that are not straight, so as to meet the bending requirements of different building components and improve the construction efficiency, engineering quality and material utilization.

[0005] To achieve the above-mentioned purpose, the utility model is a steel bar bending machine with multiple bending angle options, including a box body and a limiting assembly arranged on the upper end surface of the box body for limiting straight steel bars or bent non-straight steel bars and a bending assembly in the box body cavity; the bending assembly includes two groups of reversible driving mechanisms arranged in the box body cavity and discs respectively installed at the output ends of the two groups of driving mechanisms, and a bending column is arranged on the side of each disc away from the driving mechanism; a first rotating disk is located above the two groups of discs and fixed on the upper end surface of the box body, and first slide grooves and second slide grooves with different curvatures are respectively arranged on the first rotating disk along different rotation trajectories of the two groups of bending columns, and the two groups of bending columns penetrate the first rotating disk and respectively form a sliding structure with the box body through the first slide groove and the second slide groove; a first center column and a second center column penetrating the first rotating disk are fixedly installed on the upper end surface of the box body on one side of the two groups of bending columns, and the two groups of driving mechanisms respectively drive the two groups of bending columns through the discs to form rotating structures respectively around the first center column and the second center column.

[0006] Furthermore, the limit assemblies are provided in four groups, each group of limit assemblies includes a hydraulic rod installed in the inner cavity of the box body, the telescopic end of the hydraulic rod is installed with a connecting rod, the connecting rod passes through the top surface of the box body and extends to the top of the box body, and forms an up and down sliding structure with the box body; each connecting rod is provided with a connecting block at the end away from the hydraulic rod, and the connecting lines of the four groups of connecting blocks form a rectangular frame, wherein the outer sides of two groups of connecting blocks are respectively provided with bearings and are connected through the bearings to limit the steel bars, the limit rods form a rotating structure rotating around the center of the bearing through the bearings and the connecting blocks, and the end of the limit rod away from the bearing is provided with a second limit opening, and the side end faces of the other two groups of connecting blocks are respectively provided with first limit openings, and limiting pins are laterally placed on the inner sides of the first limit opening and the second limit opening.

[0007] Furthermore, the diameters of the first limiting opening and the second limiting opening are the same, and the diameters of the limiting pins are also the same.

[0008] Furthermore, grooves for accommodating steel bars are provided on the limiting rod at positions between the two groups of bending columns and the first center column and the second center column respectively.

[0009] Furthermore, a limiting block is arranged on the upper end surface of the box body at a position corresponding to the groove of the limiting rod, and a groove adapted to the groove of the limiting rod and used for clamping and limiting the steel bar is dug on the limiting block.

[0010] Furthermore, the two groups of driving mechanisms include a housing and a servo motor, a reducer is provided at the output shaft of the output end of the servo motor, a disc is installed at the output end of the reducer, and the servo motor, the reducer and the disc constitute a shaft transmission structure.

[0011] Furthermore, different distances are set between the two groups of curved columns and the first central column and the second central column respectively.

[0012] Furthermore, a bending sleeve is sleeved and installed on the outer diameter surface of the bending column, and the bending sleeve forms a rotating structure that rotates around the central axis of the bending column along the side surface of the bending column.

[0013] Furthermore, the outer diameter surfaces of the first center column and the second center column are both fitted with center sleeves, and the two sets of center sleeves respectively form rotating structures that rotate around the central axes of the first center column and the second center column along the sides of the first center column and the second center column.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model fixes the steel bar through a limiting assembly, and then bends the steel bar through a bending assembly, wherein a set of driving mechanisms drives a disc to rotate, and the disc drives a bending column to rotate along a first slide groove around a first center column, and the bending column is dislocated along the first slide groove and the first center column to bend the steel bar; when the steel bar is bent at different angles for the second time, the steel bar is re-limited to another set of driving mechanisms, and another set of driving mechanisms is started to drive the disc to rotate, and the disc drives the bending column to dislocate along a second slide groove around a second center column, and the different curvatures of the second slide groove can realize the bending of the steel bar at different angles. During the bending process, the rotation directions of the two sets of driving assemblies can be set to the same direction or the opposite direction, so that the steel bar is bent twice in the same or opposite directions, and the steel bar is fixed by the limiting assembly, and the steel bar that is not straight can also be bent.

[0016] Furthermore, the utility model can be used to bend steel bars of different thicknesses by setting different distances between the two groups of bending columns and the first central column and the second central column respectively.

[0017] Furthermore, when the bending column slides along the first slide groove and the second slide groove respectively, the bending sleeve sleeve fitted on the outside of the bending column and the center sleeve sleeve fitted on the outside of the first center column and the second center column can prevent the bending column and the first center column as well as the bending column and the second center column from causing friction when bending the steel bars, thereby causing damage and shortening the service life. The grooves of the limit blocks on the upper end face of the box and the grooves of the limit rods clamp and limit the steel bars that need to be bent to ensure the safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 This is a front view structural diagram of the limit assembly of the utility model;

[0020] Figure 3 It is a schematic diagram of the front section structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the top view structure of the utility model;

[0022] In the figure: 1-box; 2-limiting assembly; 201-hydraulic rod; 202-linking rod; 203-connecting block; 204-bearing; 205-limiting rod; 206-first limiting opening; 207-second limiting opening; 208-limiting tip; 3-bending assembly; 301-driving mechanism; 302-disc; 303-housing; 304-servo motor; 305-bending column; 306-bending sleeve; 307-first center column; 308-first turntable; 309-second center column; 3010-first slide; 3011-reducer; 3012-second slide; 3013-center sleeve; 4-limiting block. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 , 2As shown in Figures 3 and 4, a steel bar bending machine with multiple bending angle options described in this embodiment includes a box body 1, the inner cavity of the box body 1 is provided with a bending assembly 3, the upper end surface of the box body 1 is provided with four groups of limit assemblies 2, each group of limit assemblies 2 includes a hydraulic rod 201 installed in the inner cavity of the box body 1, and the telescopic end of the hydraulic rod 201 is provided with a connecting rod 202, the connecting rod 202 penetrates the top end surface of the box body 1 and extends to the top of the box body 1, and forms an up and down sliding structure with the box body 1; each connecting rod 202 is provided with a connecting block 203 at one end away from the hydraulic rod 201, and one end of the connecting rod 202 can be connected to the connecting block 203 by a thread, so as to facilitate the installation and disassembly of the connecting block 203; the connecting lines of the four groups of connecting blocks 203 form a rectangular frame, in which two groups of connecting blocks 203 are connected to each other. The outer sides of the blocks 203 are respectively provided with bearings 204 and are connected with limiting rods 205 through the bearings 204. The limiting rods 205 and the connecting blocks 203 form a rotating structure that rotates around the center of the bearings 204 through the bearings 204; the limiting rods 205 are provided with a second limiting opening 207 at one end away from the bearings 204, and the side end surfaces of the other two groups of connecting blocks 203 are respectively penetrated with first limiting openings 206. The diameters of the first limiting openings 206 and the second limiting openings 207 are the same, and the diameters of the limiting tips 208 are also the same, so that when the two groups of limiting rods 205 are respectively inserted into the other two groups of connecting blocks 203, the first limiting openings 206 and the second limiting openings 207 are connected, and are connected through the limiting tips 208 placed laterally on the inner sides of the first limiting openings 206 and the second limiting openings 207. The steel bars are limited by the limiting assembly 2, wherein the hydraulic rod 201 drives the limiting rod 205 to rise and fall by means of the connecting rod 202, so as to adjust the limiting height; the steel bars to be bent are limited by the limiting rod 205, and then the steel bars are bent twice in opposite or same directions and at different angles by the bending assembly 3; and the steel bars are fixed by the limiting assembly 2, and the steel bars that are not straight can also be bent.

[0025] like Figure 3As shown, the bending assembly 3 includes two sets of reversible drive mechanisms 301 arranged in the inner cavity of the box body 1, and the drive mechanism 301 includes a shell 303. A servo motor 304 is installed in the inner cavity of the shell 303. A reducer 3011 is arranged at the output shaft of the output end of the servo motor 304. A disc 302 is installed at the output end of the reducer 3011. The servo motor 304, the reducer 3011 and the disc 302 constitute a shaft transmission structure. When the steel bar needs to be bent at the opposite angle, the reducer 3011 drives the disc 302 to reverse by adjusting the rotation direction of the servo motor 304. At the same time, it is necessary to wait for the reducer 3011 to stop before operating to ensure the safety of the workers; and a bending column 305 is arranged on the side of the disc 302 away from the reducer 3011, and a bending sleeve 306 is installed on the outer diameter surface of the bending column 305. The bending sleeve 306 forms a rotating structure that rotates around the central axis of the bending column 305 along the side of the bending column 305.

[0026] like Figure 3 , 4 As shown, a first rotating disk 308 is located above the two groups of discs 302 and fixed on the upper end surface of the box body 1. A first slide groove 3010 and a second slide groove 3012 are respectively arranged on the first rotating disk 308 along different rotation tracks of the two groups of bending columns 305, and the first slide groove 3010 and the second slide groove 3012 are arranged with different radians, so as to realize different bending angles of the steel bars; the two groups of bending columns 305 penetrate the first rotating disk 308 and respectively form a sliding structure with the box body 1 through the first slide groove 3010 and the second slide groove 3012. A first center column 307 and a second center column 309 penetrating the first rotating disk 308 are fixedly installed on the upper end surface of the box body 1 on one side of the two groups of bending columns 305, and the two groups of driving mechanisms 301 respectively drive the two groups of bending columns 305 through the disc 302 to form a rotating structure around the first center column 307 and the second center column 309 respectively. The outer diameter surfaces of the first center column 307 and the second center column 309 are both fitted with center sleeves 3013, and the two sets of center sleeves 3013 respectively form a rotating structure rotating around the central axis of the first center column 307 and the second center column 309 along the side surfaces of the first center column 307 and the second center column 309. The two sets of bending columns 305 are respectively set at different distances from the first center column 307 and the second center column 309, and can be used to bend steel bars of different thicknesses.

[0027] A groove for accommodating steel bars is provided on the limit rod 205, which is respectively located between the two groups of bending columns 305 and the first center column 307 and the second center column 309, and a limit block 4 is provided on the upper end surface of the box body 1 at a position corresponding to the groove of the limit rod 205. A groove adapted to the groove of the limit rod 205 is dug on the limit block 4. The steel bars to be bent are clamped and limited by the grooves of the limit block 4 and the limit rod 5, thereby ensuring the safety of the workers.

[0028] The steel bar is bent by using the bending assembly 3. After the steel bar is fixed by a group of limit blocks 4 and grooves of the limit rod 5, one of the driving mechanisms 301 is driven to drive the disc 302 to rotate. The disc 302 drives the bending column 305 to rotate around the first center column 307 along the first slide groove 3010. The bending column 305 and the first center column 307 are misaligned to bend the steel bar.

[0029] When the steel bar is bent twice at different angles, one of the driving mechanisms 301 is stopped, and the steel bar is shifted to the grooves of another set of limit blocks 4 and limit rods 5 for re-limiting, and the other driving mechanism 301 is started to drive the disc 302 to rotate, and the disc 302 drives the bending column 305 to rotate along the second slide groove 3012 around the second center column 309, and the bending column 305 and the second center column 309 are misaligned to bend the steel bar, and the different curvatures of the second slide groove 3012 can realize the bending of the steel bar at different angles; if the steel bar needs to be bent in the reverse direction, the direction of the driving mechanism 301 is adjusted, and the reducer 3011 drives the disc 302 to change direction to realize the reverse bending of the steel bar. When the bending column 305 slides along the first slide groove 3010 and the second slide groove 3012 respectively, the bending sleeve 306 fitted on the outside of the bending column 305 and the center sleeve 3013 fitted on the outside of the first center column 307 and the second center column 309 can prevent the bending column 305 and the first center column 307 as well as the bending column 305 and the second center column 309 from causing friction when bending the steel bars, thereby causing damage and shortening the service life.

[0030] Working principle: When using a steel bar bending machine with multiple bending angle options, first use the limit assembly 2 to limit the steel bar, wherein the hydraulic rod 201 drives the limit rod 205 to rise and fall through the connecting rod 202 to adjust the limit height, and at the same time, the limit block 4 and the groove of the limit rod 205 clamp and limit the steel bar to be bent, and then use the bending assembly 3 to bend the steel bar.

[0031] The steel bar is limited by the grooves of a set of limit blocks 4 and limit rods 205, and the servo motor 304 and reducer 3011 in a set of driving mechanisms 301 are started. At this time, the disc 302 drives the bending column 305 to rotate along the first slide groove 3010 around the first center column 307, and the bending column 305 and the first center column 307 are dislocated to achieve the bending of the steel bar; when the steel bar is bent at different angles for the second time, one set of driving mechanisms 301 is stopped, and the steel bar is shifted to the grooves of another set of limit blocks 4 and limit rods 5 for re-limiting, and after starting the other set of driving mechanisms 301, the disc 302 drives the bending column 305 to rotate along the second slide groove 3012 around the second center column 309, and the bending column 305 and the second center column 309 are dislocated, and finally achieves bending at different angles. When the bending direction needs to be changed, the direction of the servo motor 304 is adjusted, and the reducer 3011 drives the disc 302 to change direction to achieve the reverse bending of the steel bar.

Claims

1. A steel bar bending machine with multiple bending angle options, characterized in that: It comprises a box body (1), a limiting component (2) arranged on the upper end surface of the box body (1) for limiting the position of straight steel bars or bent steel bars that are not straight, and a bending component (3) in the inner cavity of the box body (1); The bending assembly (3) comprises two sets of reversible driving mechanisms (301) arranged in the inner cavity of the box (1) and discs (302) respectively installed at the output ends of the two sets of driving mechanisms (301), and each disc (302) is provided with a bending column (305) on one side away from the driving mechanism (301); A first rotating disk (308) is located above the two groups of disks (302) and is fixed on the upper end surface of the box body (1); first sliding grooves (3010) and second sliding grooves (3012) with different arcs are respectively arranged on the first rotating disk (308) along different rotational tracks of the two groups of curved columns (305); the two groups of curved columns (305) penetrate the first rotating disk (308) and respectively form a sliding structure with the box body (1) through the first sliding groove (3010) and the second sliding groove (3012); A first center column (307) and a second center column (309) penetrating the first rotating disk (308) are fixedly mounted on the upper end surface of the box body (1) on one side of the two groups of curved columns (305). The two groups of driving mechanisms (301) drive the two groups of curved columns (305) through the circular disk (302) to form rotating structures respectively surrounding the first center column (307) and the second center column (309).

2. A steel bar bending machine with multiple bending angle options according to claim 1, characterized in that: The position limiting components (2) are provided in four groups, each group of the position limiting components (2) comprises a hydraulic rod (201) installed in the inner cavity of the box body (1), a connecting rod (202) is installed at the telescopic end of the hydraulic rod (201), the connecting rod (202) penetrates the top end surface of the box body (1) and extends to the top of the box body (1), and forms an up-and-down sliding structure with the box body (1); A connecting block (203) is provided at one end of each linkage rod (202) away from the hydraulic rod (201), and the connecting lines of the four groups of connecting blocks (203) form a rectangular frame, wherein bearings (204) are respectively installed on the outer sides of two groups of connecting blocks (203) and are connected to limiting rods (205) for limiting the position of the steel bars through the bearings (204), and the limiting rods (205) and the connecting blocks (203) form a rotating structure rotating around the center of the bearing (204) through the bearings (204), and a second limiting opening (207) is provided at one end of the limiting rod (205) away from the bearing (204), and the side end surfaces of the other two groups of connecting blocks (203) are respectively penetrated with first limiting openings (206), and limiting pins (208) are laterally arranged on the inner sides of the first limiting opening (206) and the second limiting opening (207).

3. A steel bar bending machine with multiple bending angle options according to claim 2, characterized in that: The diameters of the first limiting opening (206) and the second limiting opening (207) are the same, and the diameters of the limiting pins (208) are also the same.

4. A steel bar bending machine with multiple bending angle options according to claim 2, characterized in that: The limiting rod (205) is provided with grooves for accommodating steel bars at positions between the two groups of bending columns (305) and the first central column (307) and the second central column (309).

5. A steel bar bending machine with multiple bending angle options according to claim 4, characterized in that: A limiting block (4) is provided on the upper end surface of the box body (1) at a position corresponding to the groove of the limiting rod (205), and a groove adapted to the groove of the limiting rod (205) and used for clamping and limiting the steel bar is dug on the limiting block (4).

6. The steel bar bending machine with multiple bending angle options according to claim 1, characterized in that: The two sets of driving mechanisms (301) include a housing (303) and a servo motor (304); a reducer (3011) is arranged at the output shaft of the output end of the servo motor (304); a disc (302) is installed at the output end of the reducer (3011); the servo motor (304), the reducer (3011) and the disc (302) constitute a shaft transmission structure.

7. A steel bar bending machine with multiple bending angle options according to claim 1, characterized in that: Different distances are set between the two groups of curved columns (305) and the first central column (307) and the second central column (309), respectively.

8. The steel bar bending machine with multiple bending angle options according to claim 1, characterized in that: A bending sleeve (306) is sleeved and installed on the outer diameter surface of the bending column (305), and the bending sleeve (306) forms a rotating structure rotating around the central axis of the bending column (305) along the side surface of the bending column (305).

9. The steel bar bending machine with multiple bending angle options according to claim 1, characterized in that: The outer diameter surfaces of the first center column (307) and the second center column (309) are both fitted with center sleeves (3013), and the two sets of center sleeves (3013) respectively form a rotating structure that rotates around the central axis of the first center column (307) and the second center column (309) along the side surfaces of the first center column (307) and the second center column (309).

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