Clamping and positioning jig

Abstract

The utility model relates to a clamping and positioning jig, which belongs to the technical field of plate processing and comprises a bending machine, a bending die is arranged on the bending machine, an air cylinder is arranged on the bending machine, a pressing piece is arranged at the bottom of the telescopic end of the air cylinder, and a pressing structure is arranged at the bottom of the air cylinder. The downward pressing structure comprises a circular plate fixedly connected with the outer wall of the telescopic end of the air cylinder. When a steel plate needs to be bent, the steel plate can be clamped and positioned through a positioning structure, the steel plate is extruded by a downward pressing piece through a baffle, and when the steel plate is extruded by the downward pressing piece, rubber pads can limit the two sides of the steel plate through a first spring and a fixing plate, so that the situation that the bending effect is affected due to the fact that the steel plate tilts up in the bending process is avoided; and meanwhile, after bending is completed, a push plate can push the completed steel plate through an electric telescopic rod, so that the bent steel plate is rapidly taken out, and the working efficiency is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of plate processing, in particular to a clamping and positioning jig. Background Art

[0002] Clamping and positioning jigs are commonly used auxiliary tools in industrial manufacturing to ensure the stability and accuracy of workpieces during processing or assembly. Sheet metal bending jigs are a type of clamping and positioning jigs, mainly used as tools or equipment for sheet metal bending. They are widely used in mechanical processing, metal processing, building material processing and other fields.

[0003] When a press brake bends a plate, it generally bends the plate through a pressure plate and a bending model. However, during the bending process, the pressure plate generally only presses down on the part that needs to be bent. During the pressing process, when the steel plate is pressed down, the two ends may warp up. The warping of the two ends of the steel plate will directly affect the bending effect, making the shape of the bent steel plate not meet the design requirements, thereby affecting the overall quality and appearance of the product.

[0004] In order to solve the above problems, this application proposes a clamping and positioning fixture. Utility Model Content

[0005] The utility model aims to solve the technical problems existing in the prior art and provides a clamping and positioning fixture.

[0006] The technical solution of the utility model for solving the above technical problems is as follows: a clamping and positioning fixture, comprising a bending machine, a bending mold is provided on the bending machine, a cylinder is provided on the bending machine, a pressing piece is provided at the bottom of the telescopic end of the cylinder, and a pressing structure is provided at the bottom of the cylinder; the pressing structure comprises a circular plate fixedly connected to the outer wall of the telescopic end of the cylinder, the bottom of the circular plate is fixedly connected to a first spring, the end of the first spring away from the circular plate is fixedly connected to a fixing plate, the fixing plate is fixedly connected to the telescopic end of the cylinder, the bottom of the fixing plate is fixedly connected to a connecting strip, the bottom of the connecting strip is fixedly connected to a rotating rod, both ends of the rotating rod are rotatably connected to the fixing piece, the bottom of the fixing piece is fixedly connected to the connecting plate, the bottom of the connecting plate is provided with a rubber pad, the bottom of the rubber pad is rotatably connected to a rotating wheel, a positioning structure is provided on the placement plate of the bending machine, the bottom of the bending machine is provided with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected to a push plate, and one side of the push plate is in contact with one side of the bending mold.

[0007] The positioning structure includes a support block fixedly connected to the top of the bending machine, a threaded rod threadedly connected to the support block, one end of the threaded rod rotatably connected to a clamping plate, a round tube fixedly connected to the inside of the round tube, a second spring fixedly connected to one end of the second spring fixedly connected to an extension rod, and an end of the extension rod located outside the round tube fixedly connected to a positioning plate, the positioning plate and the clamping plate are slidably connected. By setting the positioning structure, the steel plate can be positioned and clamped to avoid affecting the bending effect.

[0008] The top of the rubber pad is fixedly connected with a bolt, and the bolt passes through one end of the connecting plate and is threadedly connected with a nut. One side of the nut is in contact with one side of the connecting plate. By setting the bolt and nut, the rubber pad can be disassembled to avoid affecting the bending efficiency of the device.

[0009] A fixing bar is fixedly connected to the bending machine, and a scale is slidably connected to a side of the fixing bar close to the positioning plate. By arranging the fixing bar and the scale, accurate positioning of the steel plate can be achieved.

[0010] The side of the fixing bar away from the scale is slidably connected to a slider, and the top of the slider is fixedly connected to an observation plate. By setting the slider and the observation plate, the position of the steel plate can be positioned, which facilitates the subsequent placement of the steel plate.

[0011] The outer wall of the rotating rod is fixedly connected with a stopper, and the top of the connecting plate is fixedly connected with a baffle. One side of the baffle is in contact with one side of the stopper. By setting the baffle and the stopper, the rotation direction of the slider fixing bar is limited to avoid affecting the positioning effect of the rubber pad on the steel plate.

[0012] The beneficial effects of the utility model are:

[0013] When the steel plate needs to be bent, the steel plate can be clamped and positioned by the positioning structure, and the lower pressure piece can be used to squeeze the steel plate through the baffle. When the lower pressure piece squeezes the steel plate, the rubber pad will limit the two sides of the steel plate with the first spring and the fixed plate, so as to avoid the steel plate from warping during bending and affecting the bending effect. At the same time, after the bending is completed, the electric telescopic rod can be used to enable the push plate to push the completed steel plate, so as to achieve the rapid removal of the bent steel plate, thereby avoiding affecting work efficiency.

[0014] By setting up a positioning structure, the steel plate can be positioned and clamped. When the steel plate needs to be bent, the clamping plate can be driven to move by the rotation of the threaded rod, so that the steel plate can be clamped by the clamping plate. At the same time, the second spring, the extension rod and the positioning plate are used in combination to make the steel plate in the middle when bending, thereby avoiding affecting the bending effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This utility model is a schematic diagram showing the overall structure and related parts;

[0016] Figure 2 This utility model is a schematic diagram showing the structure of the fixed plate and its related parts;

[0017] Figure 3 This utility model is a schematic diagram showing the structure of the rubber pad and its related parts;

[0018] Figure 4 This is a schematic diagram showing the positioning structure and related parts of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Bending machine;

[0021] 2. Pressing structure; 201. Circular plate; 202. First spring; 203. Fixing plate; 204. Connecting strip; 205. Rotating rod; 206. Fixing member; 207. Connecting plate; 208. Rubber pad; 209. Rotating wheel;

[0022] 3. Positioning structure; 301. Support block; 302. Threaded rod; 303. Clamping plate; 304. Round tube; 305. Second spring; 306. Extension rod; 307. Positioning plate;

[0023] 4. Bolt; 5. Nut; 6. Electric telescopic rod; 7. Push plate; 8. Fixing bar; 9. Scale; 10. Slider; 11. Observation plate; 12. Baffle; 13. Block; 14. Cylinder; 15. Pressing part; 16. Bending die. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0025] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0026] In the description of this application, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any person skilled in the art to implement and use the present invention, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0027] Reference Figure 1-3 A clamping and positioning fixture includes a bending machine 1, a bending die 16 is provided on the bending machine 1, a cylinder 14 is provided on the bending machine 1, a pressing piece 15 is provided at the bottom of the telescopic end of the cylinder 14, and the cylinder 14 is used to realize the up and down movement of the pressing piece 15. Through the coordinated use of the cylinder 14, the pressing piece 15 and the bending die 16, the steel plate can be bent. A pressing structure 2 is provided at the bottom of the cylinder 14; the pressing structure 2 is used to limit the steel plate to prevent the two ends of the steel plate from warping when bending, affecting To achieve the bending effect, the pressing structure 2 includes a circular plate 201 fixedly connected to the outer wall of the telescopic end of the cylinder 14, and a first spring 202 is fixedly connected to the bottom of the circular plate 201. The first spring 202 is used to fix the first spring 202. The end of the first spring 202 away from the circular plate 201 is fixedly connected to a fixed plate 203. The first spring 202 is used to extend and retract the fixed plate 203. The fixed plate 203 is fixedly connected to the telescopic end of the cylinder 14, and the bottom of the fixed plate 203 is fixedly connected to a connecting strip 204. The bottom of the connecting strip 204 is fixedly connected with a rotating rod 205, and the two ends of the rotating rod 205 are rotatably connected with a fixing piece 206. The bottom of the fixing piece 206 is fixedly connected with a connecting plate 207. By using the connecting strip 204, the rotating rod 205 and the fixing piece 206 in coordination, the connecting plate 207 can be flipped. A rubber pad 208 is provided at the bottom of the connecting plate 207. By flipping the connecting plate 207, the rubber pad 208 is fitted with the surface of the steel plate, thereby achieving a tight limit on the steel plate. The bottom of 08 is rotatably connected to a rotating wheel 209, and the rotating wheel 209 is used to reduce the friction with the steel plate when the rubber pad 208 is retracted. A positioning structure 3 is provided on the placement plate of the bending machine 1, and an electric telescopic rod 6 is provided at the bottom of the bending machine 1. The telescopic end of the electric telescopic rod 6 is fixedly connected to a push plate 7, and one side of the push plate 7 is in contact with one side of the bending mold 16. The push plate 7 is pushed by the electric telescopic rod 6, so that the push plate 7 pushes the bent steel plate, thereby realizing the rapid removal of the steel plate.

[0028] Reference Figure 1 and Figure 4 The cam 303 is fixed on the top of the workbench 301 and is used to fix the workbench 303 on the workbench 301. The cam 303 is fixed on the top of the workbench 301 and is used to fix the workbench 303 on the workbench 301.

[0029] Reference Figure 3 The top of the rubber pad 208 is fixedly connected with a bolt 4, and one end of the bolt 4 passes through the connecting plate 207 and is threadedly connected with a nut 5. One side of the nut 5 fits against one side of the connecting plate 207. The combined use of the bolt 4 and the nut 5 can realize the disassembly of the rubber pad 208. When the rubber pad 208 is deformed or damaged during long-term use, the bolt 4 can be disassembled by disassembling the nut 5, thereby facilitating the replacement of the rubber pad 208 and avoiding affecting the bending efficiency of the device.

[0030] Reference Figure 1 and Figure 2 A fixing bar 8 is fixedly connected to the bending machine 1, and a scale 9 is slidably connected to the side of the fixing bar 8 close to the positioning plate 307. The scale 9 is convenient for the staff to observe the position of the steel plate. The coordinated use of the fixing bar 8 and the scale 9 can realize the precise positioning of the steel plate. By observing the scale on the scale 9, the staff can place the steel plate in the correct position, thereby realizing precise bending of the steel plate.

[0031] Reference Figure 2 The side of the fixed bar 8 away from the scale 9 is slidably connected to a slider 10, and the top of the slider 10 is fixedly connected to an observation plate 11. The slider 10 and the observation plate 11 can be used together to realize the positioning of the steel plate. After the staff has accurately positioned the steel plate, they can move the observation plate 11 to the appropriate position, thereby facilitating the subsequent placement of the steel plate.

[0032] Reference Figure 3The outer wall of the rotating rod 205 is fixedly connected with a block 13, and the top of the connecting plate 207 is fixedly connected with a baffle 12. The baffle 12 is used to block the block 13. One side of the baffle 12 fits with one side of the block 13. The coordinated use of the baffle 12 and the block 13 can limit the rotation direction of the fixed bar 8 of the slider 10, thereby preventing the rubber pad 208 from rotating in the opposite direction when squeezing the steel plate, thereby avoiding affecting the positioning effect of the rubber pad 208 on the steel plate.

[0033] Working principle:

[0034] When the steel plate needs to be bent, the worker puts one end of the steel plate in contact with the positioning plate 307, and then puts the other end in contact with another positioning plate 307. After the steel plate is placed, the threaded rod 302 is rotated to move the clamping plate 303, so that the steel plate is clamped by the clamping plate 303. After the steel plate is clamped, the cylinder 14 is used to press the pressing piece 15 downward, thereby realizing the bending of the steel plate. At the same time, during the bending process of the steel plate, the rubber pad 208 will As the pressing piece 15 moves, it comes into contact with the steel plate. When the rubber pad 208 contacts the steel plate, the rubber pad 208 flips over with the cooperation of the rotating rod 205, the fixing piece 206 and the connecting plate 207, so that it further fits the bent surface of the steel plate at that time. At the same time, as the pressing piece 15 continues to move downward, the rubber pad 208, under the action of the first spring 202 and the fixing plate 203, limits the two ends of the steel plate to prevent the two ends of the steel plate from warping, thereby avoiding affecting the bending effect of the steel plate.

[0035] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0036] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A clamping and positioning jig, comprising a bending machine (1), characterized in that: The bending machine (1) is provided with a bending die (16), the bending machine (1) is provided with a cylinder (14), a pressing piece (15) is provided at the bottom of the telescopic end of the cylinder (14), and a pressing structure (2) is provided at the bottom of the cylinder (14); The downward pressing structure (2) comprises a circular plate (201) fixedly connected to the outer wall of the telescopic end of the cylinder (14); the bottom of the circular plate (201) is fixedly connected to a first spring (202); the end of the first spring (202) away from the circular plate (201) is fixedly connected to a fixed plate (203); the fixed plate (203) is fixedly connected to the telescopic end of the cylinder (14); the bottom of the fixed plate (203) is fixedly connected to a connecting strip (204); the bottom of the connecting strip (204) is fixedly connected to a rotating rod (205); both ends of the rotating rod (205) are fixedly connected to the connecting strip (204); A fixing member (206) is rotatably connected, the bottom of the fixing member (206) is fixedly connected to a connecting plate (207), the bottom of the connecting plate (207) is provided with a rubber pad (208), the bottom of the rubber pad (208) is rotatably connected to a rotating wheel (209), a positioning structure (3) is provided on the placement plate of the bending machine (1), an electric telescopic rod (6) is provided on the bottom of the bending machine (1), the telescopic end of the electric telescopic rod (6) is fixedly connected to a push plate (7), and one side of the push plate (7) is in contact with one side of the bending mold (16).

2. A clamping and positioning fixture according to claim 1, characterized in that: The positioning structure (3) comprises a support block (301) fixedly connected to the top of the bending machine (1), a threaded rod (302) being threadedly connected to the support block (301), one end of the threaded rod (302) being rotatably connected to a clamping plate (303), a round tube (304) being fixedly connected to the inside of the round tube (304), one end of the second spring (305) being fixedly connected to an extension rod (306), one end of the extension rod (306) being located outside the round tube (304) being fixedly connected to a positioning plate (307), and the positioning plate (307) being slidably connected to the clamping plate (303).

3. The clamping and positioning fixture according to claim 1, characterized in that: The top of the rubber pad (208) is fixedly connected with a bolt (4), and one end of the bolt (4) passes through the connecting plate (207) and is threadedly connected with a nut (5), and one side of the nut (5) is in contact with one side of the connecting plate (207).

4. The clamping and positioning fixture according to claim 1, characterized in that: A fixing bar (8) is fixedly connected to the bending machine (1), and a scale (9) is slidably connected to a side of the fixing bar (8) close to the positioning plate (307).

5. The clamping and positioning fixture according to claim 4, characterized in that: A sliding block (10) is slidably connected to a side of the fixing bar (8) away from the scale (9), and an observation plate (11) is fixedly connected to the top of the sliding block (10).

6. The clamping and positioning fixture according to claim 1, characterized in that: The outer wall of the rotating rod (205) is fixedly connected to a stopper (13), and the top of the connecting plate (207) is fixedly connected to a stopper (12), with one side of the stopper (13) being in contact with one side of the stopper (13).

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