Multifunctional universal special-shaped curved surface correcting device and method

Abstract

According to the multifunctional universal special-shaped curved surface shape correcting device and method, a to-be-machined part is placed on a cushion block, and part deformation is achieved through supporting force of a contact surface of the part and the cushion block to the part and downward impact force of tools, tools, equipment and the like on the upper portion of the part to the part; when the forming radian of the part is large, the rotating handle is adjusted, the distance between the fixed support and the movable support is increased, and therefore the stress point is changed; on the contrary, the relative distance is shortened, and small-radian appearance machining is achieved; and if the part only needs to correct the deformation of the part, the processing surface of the cushion block can be adjusted, and the contact surface of the cushion block is replaced by a plane to realize the quick correction of the part. The part machining efficiency is effectively improved, and the machining difficulty is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plastic forming of extruded profile parts, and in particular to a multifunctional universal special-shaped curved surface correction device and method. Background Art

[0002] Extruded profile parts are an important part of aircraft structure, and their own product performance has an important impact on aircraft structure. The main forming methods of profile parts are bending, edge release, edge collection, correction, etc. The deformation zone of most profile parts is often a combination of the above basic forming methods. Scientific analysis of the deformation characteristics of parts is conducive to using appropriate methods to improve the qualified rate of parts, improve processing methods, save manufacturing costs and improve processing efficiency. In order to meet the forming of parts of different shapes, the current method is to use bakelite pads of different specifications to assist in forming. Due to the impact force of the forming tool on the parts during part processing, the bakelite pad will continue to move or bounce due to excessive force, or even tear the pad. The pad spacing position needs to be continuously adjusted during forming to gradually form the shape of the parts. However, this method has the defects of low efficiency, high labor intensity, poor surface quality of parts, high skill level, and unstable part quality. Summary of the invention

[0003] The purpose of the invention is to provide a multifunctional universal special-shaped curved surface correction device and method to solve the existing problems of increased difficulty in parts processing due to the impact force on the pad, high pad damage efficiency, and poor surface quality of parts, thereby improving processing efficiency.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] A multifunctional universal special-shaped curved surface correction device comprises a base, a fixed support, a movable support, a limit plate, a cushion block, a rotating connecting rod, a rotating handle and a fastening nut, wherein:

[0006] The cushion block is a columnar structure, the side of the cushion block is a contact surface, and the cushion block is a detachable structure;

[0007] The fixed support and the movable support have the same structure, and a dovetail groove is provided at the lower part thereof, and the dovetail groove is assembled on a limit plate arranged along the length direction in the base; wherein the dovetail groove of the fixed support is fixed on the limit plate and cannot be moved; the dovetail groove of the movable support can slide on the limit plate; a U-shaped groove is processed on the upper part of the fixed support and the movable support, and a threaded hole is provided on the side of the U-shaped groove for installing and fixing the cushion block;

[0008] The base is a box-type structure with an installation cavity on its upper part, and the limit plate is fixed at the bottom of the installation cavity; a threaded hole is opened on the rear end surface of the base and a rotating connecting rod is installed, the front end of the rotating connecting rod is installed in the threaded hole opened on the movable support, a rotating handle is installed at the rear end of the rotating connecting rod, and a fastening nut is installed on the rotating connecting rod between the movable support and the rear end surface of the base; the rotating connecting rod is driven by the rotating handle to drive the movable support to slide in the base; after the position of the movable support is adjusted, the position of the movable support is locked by the fastening nut.

[0009] Place the part to be processed on the pad, and realize the deformation of the part through the supporting force of the contact surface between the part and the pad, and the downward impact force of the tool on the part; if the part only needs to correct the deformation, adjust the processing surface of the pad, replace the contact surface of the pad with a flat surface, and then carry out processing.

[0010] Furthermore, the contact surface of the cushion block is processed into a shape that matches the profile of the part to be processed.

[0011] Furthermore, the shape of the contact surface includes a plane and an arc surface.

[0012] Furthermore, a slot and a protrusion are arranged on the side surface of the pad block.

[0013] Furthermore, the cushion block is provided with fixing holes, and the cushion block is mounted on the fixed support and the movable support by means of bolts.

[0014] Furthermore, the two sides of the cushion block are processed into contact surfaces of different shapes, and the cushion block can be adapted to the surfaces of different parts by turning it over.

[0015] Furthermore, the fixed support is installed at the front end of the base.

[0016] A multifunctional universal special-shaped surface correction method, comprising:

[0017] Step 1: Select a pad with a circular arc contact surface and install the pad on the fixed support and the movable support; then place the part on the pad of the device;

[0018] Step 2: According to the material specifications of the parts and the size of the forming arc, adjust the rotating handle to drive the rotating connecting rod to rotate, and limit the limit plate to convert the spiral force into a horizontal pulling force, so that the distance between the movable support and the fixed support can be accurately adjusted to match the size of the forming arc of the parts; after adjustment, tighten the fastening nut;

[0019] Step 3: Apply downward impact force to the part, and the part bends during the force application process. At the same time, the force application position of the part is gradually adjusted to finally form the part.

[0020] Step 4: If the part needs to be corrected for warping, remove the fixing screws, replace the pad, and fix the pad with the contact surface facing upward. Adjust the rotating handle according to the force applied to the part to control the movement of the movable support. After reaching the appropriate position, apply a quantitative impact to the part to correct the warping of the part.

[0021] Compared with the prior art, the present invention has the following technical features:

[0022] When the bracket device of the present invention is used, it is only necessary to set the appropriate pad distance and pad shape according to the bending shape of the part, so that when the operator manually forms the part, the pad will not be displaced or broken due to the impact of force, splashing, etc. The device improves the processing efficiency of profile parts by about 40% compared with the existing method, and the surface quality of the part is good, the forming speed is fast, and the operation is easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the device bending parts forming;

[0024] Figure 2 This is a schematic diagram of straight part correction. DETAILED DESCRIPTION

[0025] In order to more clearly understand the purpose, technical solutions and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Embodiment 1

[0027] See attached Figure 1 and 2 A multifunctional universal special-shaped curved surface correction device comprises a base 6, a fixed support 2, a movable support 5, a limit plate 10, two pads 4 for correction, a rotating connecting rod 8, a rotating handle 7 and a fastening nut 9, wherein:

[0028] The pad 4 is a columnar structure, and the side of the pad 4 is the contact surface, which is processed into a shape that matches the profile of the part to be processed; the pad 4 is a detachable structure, and further, the contact surface of the pad 4 is processed into a shape that matches the profile of the part to be processed; the shape of the contact surface includes a plane and an arc surface; or a slot or a protrusion is provided on the side of the pad 4 to adapt to different processing requirements; there are fixing holes on the pad 4, and the pad 4 is installed on the fixed support 2 and the movable support 5 by bolts; the two sides of the pad 4 can be processed into contact surfaces of different shapes, and the profiles of different parts can be adapted by flipping the pad 4.

[0029] The fixed support 2 and the movable support 5 have the same structure, and a dovetail groove is provided at the lower part thereof, and the dovetail groove is assembled on the limit plate 10 arranged along the length direction in the base 6; wherein the dovetail groove of the fixed support 2 is fixed on the limit plate 10 and cannot be moved; the dovetail groove of the movable support 5 can slide on the limit plate 10; the upper part of the fixed support 2 and the movable support 5 is processed with a U-shaped groove, and a threaded hole is provided on the side of the U-shaped groove for installing and fixing the cushion block 4; wherein the fixed support 4 is installed at the front end inside the base 6;

[0030] The base 6 is a box-type structure, and a mounting cavity is provided on its upper part, and the limit plate 10 is fixed at the bottom of the mounting cavity; a threaded hole is opened on the rear end face of the base 6 and a rotating connecting rod 8 is installed, and the front end of the rotating connecting rod 8 is assembled into the threaded hole opened on the movable support 5, and a rotating handle 8 is installed at the rear end of the rotating connecting rod 8, and a fastening nut 9 is installed on the rotating connecting rod 8 between the movable support 5 and the rear end face of the base 6; the rotating connecting rod 8 is driven by the rotating handle 7 to drive the movable support 5 to slide in the base 6; after the position of the movable support 5 is adjusted, the position of the movable support 5 is locked by the fastening nut 9.

[0031] During processing, workers place the parts to be processed on the pad 4, and realize the deformation of the parts through the supporting force of the contact surface between the parts and the pad 4, and the downward impact force of the tools, fixtures, equipment, etc. on the parts. When the forming curvature of the parts is large, adjust the rotating handle 7 to increase the distance between the fixed support 2 and the movable support 5, so as to change the force point; otherwise, shorten the relative distance to realize small curvature processing; if the parts only need to correct the deformation of the parts, adjust the processing surface of the pad 4, and replace the contact surface of the pad 4 with a plane to realize rapid correction of the parts.

[0032] Embodiment 2

[0033] The specific application method of the present invention is as follows:

[0034] Step 1: Select a pad 4 with a circular arc contact surface, and install the pad 4 on the fixed support 2 and the movable support 5; then place the part on the pad 4 of the device, as shown in FIG. Figure 1 As shown:

[0035] Step 2: According to the material specifications of the parts and the size of the forming arc, adjust the rotating handle 7 to drive the rotating connecting rod 8 to rotate, and limit the position through the limit plate 10, so that the spiral force is converted into a horizontal pulling force, so that the distance between the movable support 5 and the fixed support 2 can be accurately adjusted to match the size of the forming arc of the parts; after adjustment, tighten the fastening nut 9;

[0036] Step 3: Apply downward impact force to the part. Due to the downward impact force on the part and the upward support force of the two pads 4 contact points on the part, the part bends during the force application process. At the same time, the force application position of the part is gradually adjusted to finally form the part.

[0037] Step 4: If the part needs to be corrected for warpage, the fixing screw 3 can be removed, the pad 4 can be replaced, and the contact surface of the pad 4 can be fixed upward. The part can be adjusted according to the force to rotate the handle 7 to control the movement of the movable support 5. After reaching the appropriate position, a quantitative impact is applied to the part to correct the warpage of the part, such as Figure 2 shown.

[0038] Based on the above-mentioned device of the present invention, the processing difficulty of the operator is reduced; the support will not bounce randomly due to force during forming; it replaces the forming method of using pads for profile parts, and the pads will not break during forming; the device has good versatility and can be applied to the outer curvature processing of most profile parts; the platform base can be placed on work surfaces of different sizes and has a wide range of applications; the production efficiency of parts is improved, and there is no need to select pads of different specifications according to the curvature size during forming, and parts can be formed using one set of devices, thereby improving efficiency.

Claims

1. A multifunctional universal special-shaped curved surface correction device, characterized in that: It comprises a base (6), a fixed support (2), a movable support (5), a limit plate (10), a cushion block (4), a rotating connecting rod (8), a rotating handle (7) and a fastening nut (9), wherein: The cushion block (4) is a columnar structure, the side surface of the cushion block (4) is a contact surface, and the cushion block (4) is a detachable structure; The fixed support (2) and the movable support (5) have the same structure, and a dovetail groove is provided at the bottom thereof, and the dovetail groove is assembled on a limit plate (10) arranged along the length direction in the base (6); wherein the dovetail groove of the fixed support (2) is fixed on the limit plate (10) and cannot move; the dovetail groove of the movable support (5) can slide on the limit plate (10); the upper parts of the fixed support (2) and the movable support (5) are processed with a U-shaped groove, and a threaded hole is provided on the side of the U-shaped groove for installing and fixing the cushion block (4); The base (6) is a box-type structure, and has an installation cavity at its upper part, and the limit plate (10) is fixed to the bottom of the installation cavity; a threaded hole is opened on the rear end surface of the base (6) and a rotating connecting rod (8) is installed, and the front end of the rotating connecting rod (8) is installed in the threaded hole opened on the movable support (5), and a rotating handle (8) is installed at the rear end of the rotating connecting rod (8), and a fastening nut (9) is installed on the rotating connecting rod (8) between the movable support (5) and the rear end surface of the base (6); the rotating connecting rod (8) is driven by the rotating handle (7), so as to drive the movable support (5) to slide in the base (6); after the position of the movable support (5) is adjusted, the position of the movable support (5) is locked by the fastening nut (9); The part to be processed is placed on the cushion block (4), and the deformation of the part is achieved through the supporting force of the contact surface between the part and the cushion block (4) and the downward impact force of the tool on the part; if the part only needs to correct the deformation, the processing surface of the cushion block (4) is adjusted, and the contact surface of the cushion block (4) is replaced with a flat surface before processing.

2. The multifunctional universal special-shaped curved surface correction device according to claim 1 is characterized in that: The contact surface of the cushion block (4) is processed into a shape that matches the profile of the part to be processed.

3. The multifunctional universal special-shaped curved surface correction device according to claim 1 is characterized in that: The shape of the contact surface includes a plane surface and an arc surface.

4. The multifunctional universal special-shaped curved surface correction device according to claim 1 is characterized in that: A slot and a protrusion are arranged on the side surface of the pad block (4).

5. The multifunctional universal special-shaped curved surface correction device according to claim 1 is characterized in that: The cushion block (4) is provided with a fixing hole, and the cushion block (4) is installed on the fixed support (2) and the movable support (5) by means of bolts.

6. The multifunctional universal special-shaped curved surface correction device according to claim 1 is characterized in that: The two sides of the cushion block (4) are processed into contact surfaces of different shapes, and the cushion block (4) can be adapted to the profiles of different parts by turning it over.

7. The multifunctional universal special-shaped curved surface correction device according to claim 1 is characterized in that: The fixed support (4) is installed at the front end inside the base (6).

8. A multifunctional universal special-shaped surface correction method, characterized in that: include: Step 1: Select a cushion block (4) with a circular arc contact surface, and install the cushion block (4) on the fixed support (2) and the movable support (5); then place the part on the cushion block (4) of the device; Step 2: According to the material specifications of the parts and the size of the forming arc, adjust the rotating handle (7) to drive the rotating connecting rod (8) to rotate, and limit the position through the limit plate (10) so that the spiral force is converted into a horizontal pulling force, so that the distance between the movable support (5) and the fixed support (2) can be accurately adjusted to match the size of the forming arc of the parts; after adjustment, tighten the fastening nut (9); Step 3: Apply downward impact force to the part, and the part bends during the force application process. At the same time, the force application position of the part is gradually adjusted to finally form the part. Step 4: If the part needs to be corrected for warping, remove the fixing screw (3), replace the pad (4), fix the pad (4) with the contact surface facing upward, adjust the rotating handle (7) according to the force applied to the part, control the movement of the movable support (5), and apply a quantitative impact to the part after reaching the appropriate position to correct the warping of the part.

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