A type of easy-to-change bending tool

Abstract

This utility model discloses a conveniently replaceable bending cutter, relating to the field of bending machine technology. The utility model includes a mounting plate, with a shock-absorbing assembly on the lower surface of the mounting plate. The shock-absorbing assembly includes dampers arranged in a ring array on the lower surface of the mounting plate, with shock-absorbing springs sleeved on the peripheral sidewalls of the dampers. A protruding post is mounted on the lower end of the three dampers. A connecting assembly is provided on the lower surface of the protruding post. This utility model uses a shock-absorbing assembly to buffer the impact force between the cutter body and the workpiece, protecting both and increasing the service life of the cutter body and the bending quality of the workpiece. The connecting assembly also prevents stripping of bolts or nuts caused by frequent rotation, facilitating the disassembly and replacement of the cutter body.

Description

Technical Field

[0001] This utility model belongs to the field of bending machine technology, and in particular relates to a bending tool that is easy to replace. Background Technology

[0002] The emergence of mechanical equipment has gradually replaced manual processing methods, not only reducing workload but also improving processing efficiency. Mechanical equipment consists of sheet metal, bolts, nuts, and lead screws. The use of sheet metal in mechanical equipment requires selecting different shapes (straight sheets, curved sheets) based on the equipment's shape. Sheet metal bending typically relies on a bending machine, which includes a support frame, worktable, clamping plate, lifting mechanism, and bending cutters. The lifting mechanism adjusts the height of the bending cutters, allowing them to perform stamping and bending processing on the sheet metal.

[0003] A search revealed a composite bending tool in patent publication number CN214348799U, comprising a bending blade and a template assembly. The bending blade has a downward-pointing V-shaped blade head at its bottom end. The template assembly includes an upper template located below the bending blade and a lower template located below the upper template. The upper template has a first V-shaped groove with an upward opening at its upper end, which matches the shape of the V-shaped blade head. The lower template has a second V-shaped groove with a downward opening at its lower end. The upper end of the lower template has a limiting protrusion that matches the shape of the second V-shaped groove. The assembly also includes a driving mechanism for driving the upper template to move vertically relative to the lower template or for driving the lower template to move vertically relative to the upper template. This composite bending tool can meet the integrated bending requirements of commercial door frames with U-shaped grooves. Compared with the existing segmented welding method for door frames, it can greatly simplify the manufacturing process, improve production efficiency, and save material and labor costs.

[0004] However, bending tools still have the following drawbacks in actual use:

[0005] 1. After the bending cutter is installed on the bending machine, the height of the bending cutter is adjusted by the lifting mechanism. When the bending cutter moves downward to bend the workpiece, the impact force between the bending cutter and the workpiece cannot be reduced. The impact force will be too large, which will damage the bending cutter and reduce its service life.

[0006] 2. Side-fixed installation is a method of installing bending tools. It mainly involves pressing the tool into the side clamping groove and then fixing it with a clamping nut. When processing workpieces with larger diameters, the installation should not be too tight or too loose, otherwise it will affect the processing quality. During the process of disassembling and replacing bending tools, the nut or bolt needs to be rotated multiple times, which may cause stripping of the threads, hinder the rotation of the nut or bolt, and make it inconvenient to disassemble and replace the tool body.

[0007] To address these issues, we provide a conveniently replaceable bending tool. Utility Model Content

[0008] The purpose of this utility model is to provide a bending tool that is easy to replace. By setting a shock-absorbing component, the impact force between the tool body and the workpiece is buffered, thus avoiding damage to the tool body and the workpiece. Furthermore, by setting a connecting component, the stripping of threads caused by frequent rotation of bolts or nuts is avoided, and the tool body can be quickly disassembled and assembled, thereby solving the technical problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0010] This utility model relates to a conveniently replaceable bending tool, comprising a mounting plate. A damping assembly is provided on the lower surface of the mounting plate. The damping assembly includes dampers arranged in a ring array on the lower surface of the mounting plate. A damping spring is sleeved on the peripheral wall of each damper. A protruding post is mounted on the lower end of three dampers. A connecting assembly is provided on the lower surface of the protruding post. The connecting assembly includes a connecting plate connected to the lower end of the protruding post. Connecting rods are fixed to the four corners of the lower surface of the connecting plate. A base plate is fixed to the lower end of the four connecting rods. A through groove and a limiting groove are formed on the upper surface of the base plate. A screw rod passes through the center of the base plate. A nut is threaded onto the peripheral wall of the screw rod. A return spring connected to the lower end of the nut is sleeved on the peripheral wall of the screw rod. A sleeve connected to the lower end of the return spring is sleeved on the peripheral wall of the screw rod. Limiting rods are symmetrically fixed to the outer peripheral wall of the sleeve, and the limiting rods are inserted into the limiting grooves.

[0011] The present invention is further configured such that the upper surface of the mounting plate is provided with internal threaded holes for threaded connection bolts, and the four bolts are arranged in a rectangular array at the four corners of the mounting plate.

[0012] The present invention is further configured such that a protective sleeve fitted on the outer periphery of the protruding post abuts against the lower surface of the mounting plate, and a collar fitted on the outer periphery of the protective sleeve is mounted on the lower surface of the mounting plate.

[0013] The present invention is further configured such that a blade body is provided below the screw, a handle is fixedly connected to the upper end of the blade body, and the handle is fixedly connected to the lower end of the screw.

[0014] The present invention is further configured such that the side wall of the sleeve is provided with grooves, and the four grooves are distributed in a ring array.

[0015] The present invention is further configured such that the thickness of the sleeve is three-half the thickness of the substrate, and the groove is located above the substrate.

[0016] The present invention is further configured such that the through groove and the limiting groove are connected, and the through groove and the limiting groove form a cross-shaped structure.

[0017] This utility model has the following beneficial effects:

[0018] 1. By setting up a shock-absorbing component, during the process of the blade moving downward to bend the workpiece, the blade presses the workpiece downward. At this time, the damper and shock-absorbing spring work to buffer the impact force between the blade and the workpiece, avoid damage during the collision between the blade and the workpiece, and increase the service life of the blade and the bending quality of the workpiece.

[0019] 2. This utility model, by setting a connecting component, allows for the following: pulling the sleeve upward compresses the return spring, causing the limiting rod to move upward out of the limiting groove; rotating the sleeve rotates the limiting rod to the top of the through groove; pulling the blade body downward causes the screw to disengage from the substrate, thus disassembling the blade body. Conversely, pushing the blade body upward causes the screw to penetrate the substrate; pulling the sleeve upward compresses the return spring; rotating the sleeve rotates the limiting rod to the top of the limiting groove; releasing the sleeve resets the return spring, allowing the limiting rod to enter the limiting groove and fix the screw position, thus completing the installation of the blade body. This eliminates the need for frequent rotation of bolts or nuts to fix the blade body's position, avoiding stripped threads that hinder the installation and removal of bolts or nuts, thereby facilitating the disassembly and replacement of the blade body. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0021] Figure 1 A three-dimensional diagram of a conveniently replaceable bending tool. Figure 1 ;

[0022] Figure 2 A three-dimensional diagram of a conveniently replaceable bending tool. Figure 2 ;

[0023] Figure 3 A cross-sectional schematic diagram of a bending tool that is easy to replace;

[0024] Figure 4 This is an enlarged schematic diagram of the structure at point A in the middle.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1-Mounting plate, 101-Bolt, 2-Shock damping assembly, 201-Protruding post, 202-Protective sleeve, 202a-Collar, 203-Damper, 203a-Shock damping spring, 3-Connecting assembly, 301-Tool body, 301a-Tool handle, 302-Base plate, 302a-Through groove, 302b-Limiting groove, 303-Connecting rod, 304-Connecting plate, 305-Sleeve, 305a-Groove, 305b-Limiting rod, 306-Screw, 306a-Nut, 307-Reset spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figure 1 , Figure 2 and Figure 3 This utility model is a bending tool that is easy to replace, including a mounting plate 1 and a bolt 101. The bolt 101 fixes the mounting plate 1 on the bending machine, increasing the stability of the mounting plate 1 on the bending machine.

[0030] Specifically, the upper surface of the mounting plate 1 is provided with internal threaded holes for threaded bolts 101; four bolts 101 are arranged in a rectangular array at the four corners of the mounting plate 1.

[0031] The operation process of this embodiment is as follows: the operator places the mounting plate 1 on the bending machine, rotates the bolt 101 clockwise to fix the mounting plate 1 on the bending machine, and rotates the bolt 101 counterclockwise to remove the mounting plate 1.

[0032] Example 2

[0033] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 Based on the first specific embodiment, a protruding post 201, a damper 203, and a shock-absorbing spring 203a are provided. During the bending process of the workpiece, the damper 203 and the shock-absorbing spring 203a work together to effectively buffer the impact force between the workpiece and the cutter body 301, thereby protecting the workpiece and improving the service life of the cutter body 301 and the bending quality of the workpiece.

[0034] Specifically, the dampers 203 are connected in a ring array to the lower surface of the mounting plate 1. The damping springs 203a are sleeved on the peripheral sidewalls of the dampers 203, and the lower ends of the three dampers 203 are jointly mounted with protruding posts 201.

[0035] Furthermore, the protective sleeve 202 sleeved on the outer periphery of the protruding post 201 abuts against the lower surface of the mounting plate 1, and the collar 202a sleeved on the outer periphery of the protective sleeve 202 is installed on the lower surface of the mounting plate 1.

[0036] The operation process of this embodiment is as follows: unscrew the screw on the collar 202a counterclockwise to release the fixed position of the protective cylinder 202; conversely, rotate the screw clockwise to fix the position of the protective cylinder 202; during the process of the cutter body 301 moving downward to bend the workpiece, the damper 203 and the shock-absorbing spring 203a work to buffer the impact force.

[0037] Example 3

[0038] Please see Figure 1 , Figure 2 and Figure 3 Based on specific embodiments one and two, a connecting component 3 is provided. The connecting component 3 includes a base plate 302, a through groove 302a, a limiting groove 302b, a connecting rod 303, a connecting plate 304, a sleeve 305, a groove 305a, a limiting rod 305b, a screw 306, a nut 306a, and a return spring 307. Pulling the sleeve 305 upward compresses the return spring 307, and the limiting rod 305b moves out of the limiting groove 302b. Rotating the sleeve 305 moves the limiting rod 305b above the through groove 302a. Pulling the blade body 301 downward achieves disassembly. Conversely, installing the blade body 301 does not require frequent rotation of the bolt or nut, avoiding thread stripping and facilitating the disassembly and replacement of the blade body 301.

[0039] Specifically, the connecting plate 304 is connected to the lower end of the protrusion 201. Connecting rods 303 are fixed to the four corners of the lower surface of the connecting plate 304. The lower ends of the four connecting rods 303 are fixed to the base plate 302. The upper surface of the base plate 302 is provided with a through groove 302a and a limiting groove 302b. A screw 306 passes through the center of the base plate 302. A nut 306a is threaded onto the peripheral wall of the screw 306. A return spring 307 connected to the lower end of the nut 306a is sleeved on the peripheral wall of the screw 306. A sleeve 305 connected to the lower end of the return spring 307 is sleeved on the peripheral wall of the screw 306. A limiting rod 305b is symmetrically fixed to the outer peripheral wall of the sleeve 305. The limiting rod 305b is inserted into the inside of the limiting groove 302b.

[0040] Furthermore, a blade body 301 is provided below the screw 306, and a blade shank 301a is fixedly connected to the upper end of the blade body 301. The blade shank 301a is fixedly connected to the lower end of the screw 306. A groove 305a is formed on the side wall of the sleeve 305, and four grooves 305a are arranged in a circular array. The thickness of the sleeve 305 is three-half the thickness of the substrate 302, and the grooves 305a are located above the substrate 302. The through groove 302a and the limiting groove 302b are connected, and the through groove 302a and the limiting groove 302b form a cross-shaped structure.

[0041] The operation process of this embodiment is as follows: The operator pinches the groove 305a with his hand and applies an upward pulling force. The return spring 307 is compressed, the sleeve 305 moves upward, and the limiting rod 305b moves upward out of the limiting groove 302b. The sleeve 305 is rotated, which drives the limiting rod 305b to rotate until the limiting rod 305b moves above the through groove 302a. The blade 301 is pulled downward, and the screw 306 moves downward to disassemble the blade 301. Conversely, the blade 301 is pushed upward, the screw 306 penetrates the substrate 302, and the groove 305a is pulled upward. The sleeve 305 drives the limiting rod 305b to rotate until the limiting rod 305b moves above the limiting groove 302b. The sleeve 305 is released, the return spring 307 is reset, and the limiting rod 305b enters the limiting groove 302b, completing the installation of the blade 301.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A conveniently replaceable bending tool, comprising a mounting plate (1), characterized in that: The mounting plate (1) has a damping assembly (2) on its lower surface. The damping assembly (2) includes a damper (203) connected in a ring array to the lower surface of the mounting plate (1). A damping spring (203a) is sleeved on the peripheral sidewall of the damper (203). The lower ends of the three dampers (203) are jointly equipped with a protruding post (201). The lower surface of the protruding post (201) is provided with a connecting component (3). The connecting component (3) includes a connecting plate (304) connected to the lower end of the protruding post (201). Connecting rods (303) are fixed to the four corners of the lower surface of the connecting plate (304). The lower ends of the four connecting rods (303) are fixed to a base plate (302). A through groove (302a) and a limiting groove (302b) are opened on the upper surface of the base plate (302). A screw (3) passes through the center of the base plate (302). 06) A nut (306a) is threaded onto the peripheral wall of the screw (306). A return spring (307) connected to the lower end of the nut (306a) is sleeved on the peripheral wall of the screw (306). A sleeve (305) connected to the lower end of the return spring (307) is sleeved on the peripheral wall of the screw (306). Limiting rods (305b) are symmetrically fixed on the outer peripheral wall of the sleeve (305). The limiting rods (305b) are inserted into the inside of the limiting groove (302b).

2. The easily replaceable bending tool according to claim 1, characterized in that: The upper surface of the mounting plate (1) is provided with internal threaded holes for threaded bolts (101), and four bolts (101) are arranged in a rectangular array at the four corners of the mounting plate (1).

3. The easily replaceable bending tool according to claim 1, characterized in that: The protective sleeve (202) sleeved on the outer periphery of the protruding post (201) abuts against the lower surface of the mounting plate (1), and the collar (202a) sleeved on the outer periphery of the protective sleeve (202) is installed on the lower surface of the mounting plate (1).

4. The easily replaceable bending tool according to claim 1, characterized in that: A blade body (301) is provided below the screw (306), and a handle (301a) is fixedly connected to the upper end of the blade body (301), and the handle (301a) is fixedly connected to the lower end of the screw (306).

5. A conveniently replaceable bending tool according to claim 1, characterized in that: The sleeve (305) has a groove (305a) on its side wall, and the four grooves (305a) are arranged in a ring array.

6. A conveniently replaceable bending tool according to claim 5, characterized in that: The thickness of the sleeve (305) is three-half the thickness of the substrate (302), and the groove (305a) is located above the substrate (302).

7. A conveniently replaceable bending tool according to claim 1, characterized in that: The through groove (302a) and the limiting groove (302b) are connected, and the through groove (302a) and the limiting groove (302b) form a cross-shaped structure.

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