Automatic clamping device for sheet metal bending machine

Abstract

The utility model relates to the technical field of sheet metal bending machines, and discloses an automatic clamping device for a sheet metal bending machine, which comprises a base, the top surface of the base is fixedly connected with a bracket, the inner top surface of the bracket is fixedly connected with a group of hydraulic rods, and one end of each hydraulic rod is fixedly connected with a rack. According to the automatic clamping device for the metal plate bending machine, through the arrangement of the supporting plate and the clamping mechanism, an air cylinder is started, the air cylinder drives a first rotating block and a connecting rod and a second rotating block which are connected with the first rotating block to rotate, then a rotating arm is driven to rotate, the rotating arm drives a clamping piece to fix a workpiece, and then a pressing head is bent in the middle of the workpiece; when bending is needed on the two sides, the screw on one side can be rotated according to needs, so that the lengths of the two sides are different, then the center shaft of the workpiece deviates when the workpiece is fixed, the pressing head bends the position, needing to be bent, of the workpiece, and the applicability of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal bending machines, in particular to an automatic clamping device for a sheet metal bending machine. Background Technique

[0002] A sheet metal bending machine is a key device for processing sheet metal (thin sheet metal), mainly used to bend sheet metal plates into the required shapes at a predetermined angle. It is widely used in the manufacturing industry, especially in fields that require precise bending such as manufacturing boxes, casings, and body parts.

[0003] The existing sheet metal bending machines have a clamping device during use, but generally can only clamp workpieces, cannot adjust the bending position of the workpieces, and cannot adjust the angle of the receiving block, thus limiting the applicability of the device during use.

[0004] Therefore, it is necessary to invent an automatic clamping device for a sheet metal bending machine to solve the above problems. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The technical problem solved by the utility model is to provide an automatic clamping device for a sheet metal bending machine with high practicability, which can be operated simply and has a relatively simple structure, and solves the problems of inability to adjust the bending position of the workpiece and the angle of the receiving block mentioned in the above background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model is realized through the following technical solutions: an automatic clamping device for a sheet metal bending machine, including a base, a bracket is fixedly connected to the top surface of the base, a group of hydraulic rods are fixedly connected to the inner top surface of the bracket, one end of each hydraulic rod is fixedly connected to a frame, a number of groups of connecting blocks are threadedly connected to the bottom surface of the frame, a pressing head is fixedly connected to the bottom surfaces of three groups of the connecting blocks, a workbench is fixedly connected to the top surface of the base, a group of support plates are fixedly connected to the top surface of the workbench, a sliding column is fixedly connected to one side inside the support plate, an adjusting mechanism is rotatably connected to the other side inside the support plate, the adjusting mechanism includes a positive and negative lead screw and a rocker, a clamping mechanism is fixedly connected to the top surface of the workbench, and the clamping mechanism includes a cylinder, a first rotating block, a connecting rod, a second rotating block, a rotating arm, a rotating column, a screw rod, a telescopic rod, and a clamping piece.

[0009] As a further solution of the utility model, the positive and negative lead screw is rotatably connected to the other side inside the support plate, and one end of the positive and negative lead screw is fixedly connected to a rocker, and the rocker facilitates the rotation of the positive and negative lead screw.

[0010] As a further solution of the utility model, the cylinder is fixedly connected to the top surface of the workbench. One end of the cylinder is fixedly connected with a first rotating block. Two sides of the first rotating block are rotationally connected with connecting rods. One side of each connecting rod is rotationally connected with a second rotating block. One side of each second rotating block is rotationally connected with a rotating arm. The middle of each rotating arm is rotationally connected with a rotating column. The inside of each rotating arm is threadedly connected with a screw rod. Two sides of each rotating arm are fixedly connected with telescopic rods. One end of each screw rod is rotationally connected with a clamping piece, and the clamping piece is used for clamping the workpiece.

[0011] As a further solution of the utility model, a set of receiving blocks are threadedly connected to the outer part of the positive and negative lead screw. A workpiece is placed on the top surfaces of the set of receiving blocks, which is conducive to placing the workpiece on the receiving blocks for bending.

[0012] As a further solution of the utility model, threaded holes are formed in the bottom surface of the frame. Bolts are threadedly connected to the inside of the threaded holes, and the bolts are used for fixedly connecting the connecting blocks.

[0013] As a further solution of the utility model, one end of the screw rod is fixedly connected with a rotating handle. An anti-slip sleeve is sleeved on the outer part of the rotating handle, and the anti-slip sleeve increases the friction force of the rotating handle.

[0014] As a further solution of the utility model, sliding holes are formed in the middle of a set of support plates. Sliding grooves are formed in the inner wall of the bracket, which is convenient for the frame to move up and down.

[0015] (III) Beneficial effects

[0016] The utility model provides an automatic clamping device for a sheet metal bending machine, which has the following beneficial effects:

[0017] 1. For the automatic clamping device for the sheet metal bending machine, through the setting of the support plate and the clamping mechanism, when the cylinder is started, the cylinder drives the first rotating block and the connecting rods and the second rotating blocks connected thereto to rotate, and then drives the rotating arms to rotate. The rotating arms drive the clamping pieces to fix the workpiece, and then the pressing head bends in the middle of the workpiece. When bending is required on both sides, the screw rod on one side can be rotated as needed so that the lengths on both sides are different. Then, when the workpiece is fixed, the central axis of the workpiece will deviate, so that the pressing head bends the place where the workpiece needs to be bent, enhancing the applicability of the device.

[0018] 2. For the automatic clamping device for the sheet metal bending machine, through the setting of the support plate, the sliding column and the adjusting mechanism, the positive and negative lead screw is rotated, so that a set of receiving blocks make relative movements on the positive and negative lead screw and the sliding column, thereby adjusting the relative distance between the set of receiving blocks, enabling the pressing head to control the degree of bending through the relative distance between the set of receiving blocks when bending the workpiece, and improving the accuracy of bending. Description of the drawings

[0019] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the adjustment mechanism structure of the present utility model;

[0021] Figure 3 This is a schematic diagram of the clamping mechanism structure of the present utility model;

[0022] Figure 4 This is a schematic diagram of the bolt structure of the present utility model.

[0023] In the figure: 1, base; 2, bracket; 3, hydraulic rod; 4, frame; 5, pressure head; 6, workbench; 7, support plate; 8, adjustment mechanism; 801, positive and negative screw rod; 802, rocker; 9, clamping mechanism; 901, cylinder; 902, first rotating block; 903, connecting rod; 904, second rotating block; 905, rotating arm; 906, rotating column; 907, screw rod; 908, telescopic rod; 909, clamping piece; 10, connecting block; 11, sliding column; 12, receiving block; 13, workpiece; 14, bolt; 15, turning handle. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: an automatic clamping device for a sheet metal bending machine, including a base 1, a bracket 2 is fixedly connected to the top surface of the base 1, a group of hydraulic rods 3 are fixedly connected to the inner top surface of the bracket 2, one end of each hydraulic rod 3 is fixedly connected to a frame 4, several groups of connecting blocks 10 are threadedly connected to the bottom surface of the frame 4, a pressure head 5 is fixedly connected to the bottom surface of the three groups of connecting blocks 10, a workbench 6 is fixedly connected to the top surface of the base 1, a group of support plates 7 are fixedly connected to the top surface of the workbench 6, a sliding column 11 is fixedly connected to one side inside the support plate 7, an adjustment mechanism 8 is rotatably connected to the other side inside the support plate 7. Through the settings of the support plate 7, the sliding column 11 and the adjustment mechanism 8, the accuracy of bending is improved. The adjustment mechanism 8 includes a positive and negative screw rod 801 and a rocker 802. A clamping mechanism 9 is fixedly connected to the top surface of the workbench 6. Through the settings of the support plate 7 and the clamping mechanism 9, the applicability of the device is enhanced. The clamping mechanism 9 includes a cylinder 901, a first rotating block 902, a connecting rod 903, a second rotating block 904, a rotating arm 905, a rotating column 906, a screw rod 907, a telescopic rod 908 and a clamping piece 909;

[0026] Please refer to Figure 2 , the left - right screw rod 801 is rotatably connected to the other side inside the support plate 7. One end of the left - right screw rod 801 is fixedly connected to a rocker 802, and the rocker 802 facilitates the rotation of the left - right screw rod 801;

[0027] Please refer to Figure 3 , the air cylinder 901 is fixedly connected to the top surface of the workbench 6. One end of the air cylinder 901 is fixedly connected to a first rotating block 902. The two sides of the first rotating block 902 are rotatably connected to connecting rods 903. One side of each connecting rod 903 is rotatably connected to a second rotating block 904. One side of each second rotating block 904 is rotatably connected to a rotating arm 905. The middle of each rotating arm 905 is rotatably connected to a rotating column 906. The inside of each rotating arm 905 is threadedly connected to a screw rod 907. The two sides of each rotating arm 905 are fixedly connected to telescopic rods 908. One end of each screw rod 907 is rotatably connected to a clamping piece 909, and the clamping piece 909 is used for clamping the workpiece 13;

[0028] Please refer to Figure 1 , a set of receiving blocks 12 are threadedly connected to the outside of the left - right screw rod 801. The workpiece 13 is placed on the top surface of the set of receiving blocks 12, which is conducive to placing the workpiece 13 on the receiving blocks 12 for bending;

[0029] Please refer to Figure 4 , threaded holes are provided on the bottom surface of the frame 4, and bolts 14 are threadedly connected inside the threaded holes. The bolts 14 are used to fixedly connect the connecting block 10;

[0030] Please refer to Figure 3 , one end of the screw rod 907 is fixedly connected to a turning handle 15, and an anti - slip sleeve is sleeved outside the turning handle 15. The anti - slip sleeve increases the friction of the turning handle 15;

[0031] Please refer to Figure 1 , sliding holes are provided in the middle of a set of support plates 7, and sliding grooves are provided on the inner wall of the support 2, which facilitates the up - and - down movement of the frame 4.

[0032] In the present utility model, the working steps of the device are as follows:

[0033] The first step: Place the workpiece 13 on the receiving block 12, start the air cylinder 901. The air cylinder 901 drives the first rotating block 902 and the connecting rods 903 and the second rotating blocks 904 connected thereto to rotate, thereby driving the rotating arms 905 to rotate. The rotating arms 905 then drive the clamping pieces 909 to fix the workpiece 13;

[0034] The second step: Start the hydraulic rod 3. The hydraulic rod 3 drives the pressing head 5 to bend the workpiece 13;

[0035] The third step: The screw rod 907 on one side can be rotated as needed to make the lengths on both sides different. As a result, when fixing the workpiece 13, the central axis of the workpiece 13 will deviate. Rotate the positive and negative lead screw 801 to make a set of bearing blocks 12 move relatively on the positive and negative lead screw 801 and the sliding column 11, so as to achieve different bending effects.

[0036] It should be noted that the device structure and the attached drawings of the present invention mainly describe the principle of the present invention. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. However, on the premise that those skilled in the art understand the principle of the above-mentioned invention, the specific details of its power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming of those skilled in the art.

[0037] The standard parts used can be purchased from the market, and can also be customized according to the description of the specification and the attached drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art, and the components known to those skilled in the art, their structures and principles can all be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic clamping device for a sheet metal bending machine, comprising a base (1), characterized in that: The top surface of the base (1) is fixedly connected with a bracket (2). The inner top surface of the bracket (2) is fixedly connected with a group of hydraulic rods (3). One ends of the hydraulic rods (3) are all fixedly connected with a frame (4). The bottom surface of the frame (4) is threadedly connected with several groups of connecting blocks (10). The bottom surfaces of three groups of the connecting blocks (10) are fixedly connected with a pressing head (5). The top surface of the base (1) is fixedly connected with a workbench (6). The top surface of the workbench (6) is fixedly connected with a group of support plates (7). One side inside the support plate (7) is fixedly connected with a sliding column (11). The other side inside the support plate (7) is rotatably connected with an adjusting mechanism (8). The adjusting mechanism (8) includes a positive and negative lead screw (801) and a rocker (802). The top surface of the workbench (6) is fixedly connected with a clamping mechanism (9). The clamping mechanism (9) includes a cylinder (901), a first rotating block (902), a connecting rod (903), a second rotating block (904), a rotating arm (905), a rotating column (906), a screw rod (907), a telescopic rod (908) and a clamping piece (909).

2. The automatic clamping device for a sheet metal bending machine according to claim 1, characterized in that: The positive and negative lead screw (801) is rotatably connected to the other side inside the support plate (7), and one end of the positive and negative lead screw (801) is fixedly connected with the rocker (802).

3. The automatic clamping device for a sheet metal bending machine according to claim 1, characterized in that: The cylinder (901) is fixedly connected to the top surface of the workbench (6). One end of the cylinder (901) is fixedly connected with the first rotating block (902). The two sides of the first rotating block (902) are rotatably connected with the connecting rod (903). One side of each of the connecting rods (903) is rotatably connected with the second rotating block (904). One side of each of the second rotating blocks (904) is rotatably connected with the rotating arm (905). The middle of each of the rotating arms (905) is rotatably connected with the rotating column (906). The inside of each of the rotating arms (905) is threadedly connected with the screw rod (907). Both sides of each of the rotating arms (905) are fixedly connected with the telescopic rod (908). One end of each of the screw rods (907) is rotatably connected with the clamping piece (909).

4. The automatic clamping device for a sheet metal bending machine according to claim 2, characterized in that: A group of receiving blocks (12) are threadedly connected to the outside of the positive and negative lead screw (801), and a workpiece (13) is placed on the top surface of the group of receiving blocks (12).

5. The automatic clamping device for a sheet metal bending machine according to claim 1, characterized in that: A threaded hole is opened on the bottom surface of the frame (4), and a bolt (14) is threadedly connected inside the threaded hole.

6. The automatic clamping device for a sheet metal bending machine according to claim 3, wherein: One end of the screw rod (907) is fixedly connected with a turning handle (15), and an anti-slip sleeve is sleeved on the outside of the turning handle (15).

7. The automatic clamping device for a sheet metal bending machine according to claim 1, wherein: A sliding hole is opened in the middle of each of the group of support plates (7), and a sliding groove is opened on the inner wall of the bracket (2).

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