Device and method for reducing burrs in hole making of laminated materials

Abstract

The present invention discloses an apparatus and method for reducing burrs in hole making of laminated materials. The apparatus comprises a frame, a supporting mechanism and a pressing mechanism are provided on the frame, the supporting mechanism is located below the pressing mechanism, a drilling assembly is provided on the pressing mechanism, the pressing mechanism is used to compress and fix the laminated material placed between the supporting mechanism and the pressing mechanism on the supporting mechanism, and the drilling assembly is used to make holes in the laminated material after being compressed; the pressing mechanism comprises an outer cylinder, a first movable plate and a second movable plate slidably arranged in the outer cylinder, the first movable plate is located above the second movable plate, a placement area is formed between the first and second movable plates, and a plurality of support balls are placed in the placement area. In actual use, the present invention makes the laminated material more compact by reducing the gap between layers, reduces burrs between layers when making holes, and thus improves the hole making quality of the laminated material.

Description

Technical Field

[0001] The present invention relates to the technical field of hole making, in particular to a device and a hole making method for reducing burrs in hole making of laminated materials. Background Art

[0002] When drilling holes in laminated materials, if an automatic feed drilling process is used, the process is mainly carried out using a drill-twister tool. The tool material is a carbide twist drill, and the drilling process is performed according to the speed and feed rate of the titanium alloy. Because different materials are drilled using the same method, the same tool, and the same feed, the holes drilled are inconsistent in diameter due to shrinkage and expansion, and cannot meet customer requirements. The hole drilling accuracy is poor, and titanium alloy flanging and composite material ablation are prone to occur. At the same time, due to the shrinkage of composite materials, the expansion of titanium alloys and aluminum alloys, and the different expansion ratios of titanium alloys and aluminum alloys, it is impossible to meet the hole diameter requirements of all three materials after processing. Therefore, the hole drilling requirements for laminated materials are relatively high.

[0003] When drilling holes in laminated materials, plastic deformation of the material and fracture during cutting will cause interlayer burrs in the metal layer components. The interlayer burrs will cause stress concentration at the joints, reduce the strength of the components, and seriously affect the assembly quality. Summary of the Invention

[0004] The purpose of the present invention is to provide an apparatus and method for reducing burrs in hole making of laminated materials. In actual use, the apparatus and method can make the laminated materials more compact by reducing the gap between layers, reduce the burrs between layers when making holes, and thus improve the hole making quality of the laminated materials.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A device for reducing burrs in hole making of laminated materials comprises a frame, a support mechanism and a pressing mechanism provided on the frame, the support mechanism being located below the pressing mechanism, a drilling assembly provided on the pressing mechanism, the pressing mechanism being used to press and fix a laminated material placed between the support mechanism and the pressing mechanism on the support mechanism, and the drilling assembly being used to make holes in the laminated material after being pressed;

[0007] The pressing mechanism includes an outer cylinder, a first movable plate and a second movable plate slidably arranged in the outer cylinder, the first movable plate is located above the second movable plate, and a placement area is formed between the first and second movable plates, in which a plurality of support balls are placed; the first and second movable plates are connected by a guide mechanism, and the first movable plate is connected to the horizontal plate of the frame by a telescopic rod;

[0008] A through hole is provided in the middle of the second movable plate. The drilling assembly is installed behind the first movable plate, and the lower end of the drilling assembly is located in the through hole.

[0009] Among them, the guide mechanism includes a guide rod and a limit nut. A guide hole is provided on the first movable plate. The lower end of the guide rod is fixedly connected to the second movable plate, and the upper end of the guide rod passes through the guide hole and is connected to the limit nut.

[0010] Further optimization is provided in that a slide groove is provided on the inner wall of the outer cylinder, and the side walls of the first and second movable plates are provided with protrusions that slide in cooperation with the slide groove.

[0011] Preferably, the telescopic rod is a hydraulic telescopic rod or a pneumatic telescopic rod.

[0012] Among them, the drilling assembly includes an inner cylinder, a first telescopic rod and a drilling tool. The upper end of the inner cylinder is fixedly connected to the first movable plate, and the lower end extends into the circular hole. The first telescopic rod is fixedly arranged inside the inner cylinder and connected to the drilling tool. The drilling tool is used to drill holes in laminated materials.

[0013] Further optimization, the drilling tool is an electric drill bit.

[0014] The drilling assembly further includes a mounting plate, the drilling tool is mounted on the mounting plate, and the movable end of the first telescopic rod is fixedly connected to the mounting plate.

[0015] Wherein, the first movable plate is provided with a heat dissipation hole communicated with the inner cylinder.

[0016] It is further defined that the mounting plate and the inner cylinder are slidably connected via a first sliding groove provided on a side of the inner cylinder and a first sliding block provided on a side of the mounting plate.

[0017] The present invention also discloses a method for making holes in laminated materials to reduce burrs, comprising using the above-mentioned device to make holes, and the specific process is as follows:

[0018] Step 1: Fix the laminated material to be drilled on the support mechanism and adjust the position of the laminated material so that the position of the hole to be drilled is located below the drilling assembly;

[0019] Step 2: The pressing mechanism moves toward the laminated material so that the pressing mechanism presses the laminated material against the supporting mechanism, thereby reducing the gap between the layers of the laminated material;

[0020] Step 3: The drilling assembly passes through the clamping mechanism to make holes in the laminated material.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In actual use, the present invention first fixes the laminated material to be drilled on the support mechanism, and at the same time adjusts the position of the laminated material so that the position of the hole to be drilled is located below the drilling assembly; then the pressing mechanism moves toward the laminated material so that the pressing mechanism presses the laminated material against the support mechanism, reducing the interlayer gaps of the laminated material; finally, the drilling assembly passes through the pressing mechanism to drill holes in the laminated material. By using the provided pressing mechanism to press the laminated material to drill holes, the interlayer gaps of the laminated material can be greatly reduced. Under the action of the support mechanism, the degree of bending of the laminated material under the action of the drilling assembly is reduced, thereby effectively overcoming interlayer separation and improving the interlayer fit of the laminated material.

[0023] More importantly, in the present invention, the pressing mechanism includes an outer cylinder, a first movable plate and a second movable plate slidably arranged in the outer cylinder, the first movable plate is located above the second movable plate, so that the first movable plate and the second movable plate can both move inside the outer cylinder, and through the supporting ball in the placement area, when the first movable plate moves toward the second movable plate, the force is transmitted through the supporting ball, and then the pressure on the first movable plate when moving toward the second movable plate is divided into several component forces, so that the second movable plate is placed under the action of the component forces, so that the second pressing plate can be evenly stressed. Compared with directly applying the telescopic rod to the second movable plate, causing the second movable plate to undergo local deformation, resulting in a reduction in the pressing effect on the laminated material, the present invention can prevent the second movable plate from being subjected to local stress when pressing the laminated material, thereby improving the pressing effect on the laminated material and thus improving the hole making quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the overall structure of the pressing mechanism of the present invention.

[0026] Figure 3 It is a schematic diagram of the overall structure of the support mechanism of the present invention.

[0027] Figure 4 For the present invention Figure 3 A partial enlarged schematic diagram of point A in the middle.

[0028] Explanation of numbers in the figure: 101-frame, 102-support mechanism, 103-pressing mechanism, 104-drilling assembly, 105-laminated material, 106-outer cylinder, 107-first movable plate, 108-second movable plate, 109-support ball, 110-guide mechanism, 111-cross plate, 112-telescopic rod, 113-through hole, 114-guide rod, 115-limiting nut, 116-guide hole, 117-inner cylinder, 118-first telescopic rod, 119-drilling tool, 120-box, 121-frame, 122-mounting slot, 123-reset spring, 124-L-shaped support plate, 125-pressing block, 126-threaded hole, 127-handwheel bolt. DETAILED DESCRIPTION

[0029] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0030] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0031] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0032] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0033] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0035] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Example 1

[0037] See Figure 1-Figure 4 This embodiment discloses an apparatus for reducing burrs in hole making of laminated materials, comprising a frame 101, on which a support mechanism 102 and a pressing mechanism 103 are provided. The support mechanism 102 is located below the pressing mechanism 103, and a drilling assembly 104 is provided on the pressing mechanism 103. The pressing mechanism 103 is used to press and fix a laminated material 105 placed between the support mechanism 102 and the pressing mechanism 103 on the support mechanism 102, and the drilling assembly 104 is used to make holes in the laminated material 105 after being pressed.

[0038] The pressing mechanism 103 includes an outer cylinder 106, a first movable plate 107 and a second movable plate 108 slidably disposed within the outer cylinder 106. The first movable plate 107 is located above the second movable plate 108. A placement area is formed between the first and second movable plates, and a plurality of support balls 109 are placed in the placement area. The first and second movable plates are connected by a guide mechanism 110, and the first movable plate 107 is connected to the horizontal plate 111 of the frame 101 by a telescopic rod 112.

[0039] A through hole 113 is provided in the middle of the second movable plate 108 . After the drilling assembly 104 is installed on the first movable plate 107 , the lower end of the drilling assembly 104 is located in the through hole 113 .

[0040] In actual use of the present invention, the laminated material 105 to be drilled is first fixed on the support mechanism 102, and the position of the laminated material 105 is adjusted so that the position of the drilled hole is located below the drilling assembly 104;

[0041] Then, the pressing mechanism 103 moves toward the laminated material 105 so that the pressing mechanism presses the laminated material 105 against the supporting mechanism 102, thereby reducing the interlayer gaps of the laminated material 105. Finally, the drilling assembly 104 passes through the pressing mechanism 103 to drill holes in the laminated material 105. By pressing and drilling the laminated material 105 with the provided pressing mechanism, the interlayer gaps of the laminated material 105 can be greatly reduced. Under the action of the supporting mechanism 102, the degree of bending of the laminated material 105 under the action of the drilling assembly 104 can be reduced, thereby effectively overcoming interlayer separation and improving the interlayer adhesion of the laminated material 105.

[0042] More importantly, in the present invention, the pressing mechanism 103 includes an outer cylinder 106, a first movable plate 107 and a second movable plate 108 that are slidably arranged in the outer cylinder 106, the first movable plate 107 is located above the second movable plate 108, so that the first movable plate 107 and the second movable plate 108 can both move inside the outer cylinder 106, and through the support balls 109 provided in the placement area, when the first movable plate 107 moves toward the second movable plate 108, the support balls 109 transmit force, thereby moving the first movable plate 107 upward. The pressure when moving toward the second movable plate 108 is divided into several component forces, which in turn make the second movable plate 108 act on the component forces, so that the second pressure plate can be evenly stressed. Compared with directly applying the telescopic rod 112 to the second movable plate 108, causing the second movable plate 108 to undergo local deformation, resulting in a reduction in the pressing effect on the laminated material 105, the present invention can prevent the second movable plate 108 from being subjected to local stress when pressing the laminated material 105, thereby improving the pressing effect on the laminated material 105 and thus improving the hole making quality.

[0043] It should be noted that in actual use, after the second movable plate 108 contacts the laminated material 105, the drilling end of the drilling assembly 104 is just located in the circular hole, so that the drilling assembly 104 and the second movable plate 108 slide. When the second movable plate 108 presses and fixes the laminated material 105, the telescopic rod 112 is driven and the drilling assembly 104 moves to realize the hole making in the laminated material 105.

[0044] The guide mechanism 110 includes a guide rod 114 and a limit nut 115. A guide hole 116 is provided on the first movable plate 107. The lower end of the guide rod 114 is fixedly connected to the second movable plate 108, and the upper end of the guide rod 114 passes through the guide hole 116 and is connected to the limit nut 115. The guide rod 114 makes the second movable plate 108 more stable during movement. When the first movable plate 107 moves upward, the limit nut 115 enables the first movable plate 107 to move upward or downward within the outer cylinder 106 following the first movable plate 107.

[0045] Among them, a sliding groove is provided on the inner wall of the outer cylinder 106, and the side walls of the first and second movable plates are provided with protrusions that slide with the sliding groove; the provided sliding groove and protrusion can make the first and second movable plates more stable when moving, so that the second movable plate 108 can be stably connected to the laminated material 105.

[0046] In actual use, the telescopic rod 112 is a hydraulic telescopic rod or a pneumatic telescopic rod.

[0047] Among them, the drilling assembly 104 includes an inner cylinder 117, a first telescopic rod 118 and a drilling tool 119. The upper end of the inner cylinder 117 is fixedly connected to the first movable plate 107, and the lower end extends into the circular hole. The first telescopic rod 118 is fixedly arranged inside the inner cylinder 117 and connected to the drilling tool 119. The drilling tool 119 is used to drill the laminated material 105.

[0048] The drilling tool 119 is an electric drill bit. Thus, in actual use, after the laminated material 105 is fixed, the drill bit can be used to drill holes.

[0049] The drilling assembly further includes a mounting plate, the drilling tool 119 is mounted on the mounting plate, and the movable end of the first telescopic rod 118 is fixedly connected to the mounting plate.

[0050] In actual use, the mounting plate and the inner cylinder 117 are slidably connected via a first sliding groove provided on the side of the inner cylinder 117 and a first sliding block provided on the side of the mounting plate.

[0051] The provided mounting plate can make the mounting plate more stable when moving, thereby ensuring the stability of the drilling tool 119 during drilling and ensuring the progress of drilling.

[0052] For further optimization, the first movable plate 107 is provided with a heat dissipation hole connected to the inner cylinder 117 .

[0053] The heat dissipation holes can quickly remove the heat generated by the drilling tool 119 during operation, thereby preventing the drilling tool 119 from overheating.

[0054] In actual use of this embodiment, the specific drilling method is as follows:

[0055] Step 1: Fix the laminated material 105 to be drilled on the support mechanism 102 and adjust the position of the laminated material 105 so that the position of the drilled hole is located below the drilling assembly 104;

[0056] Step 2: The pressing mechanism 103 moves toward the laminated material 105 so that the pressing mechanism presses the laminated material 105 against the supporting mechanism 102 to reduce the gap between the layers of the laminated material 105;

[0057] Step 3: The drilling assembly 104 passes through the pressing mechanism 103 to make holes in the laminated material 105 .

[0058] Example 2

[0059] This embodiment is further optimized on the basis of the first embodiment. In this embodiment, the support mechanism 102 includes a box body 120 and a frame 121. The top surface of the box body 120 is provided with a mounting groove 122. The frame 121 is slidably provided in the mounting groove 122. A return spring 123 is provided at the bottom of the mounting groove 122. The upper end of the return spring 123 is in contact with the frame 121. The frame 121 and the box body 120 form a telescopic structure. Molding sand is placed in the box body 120. A fixing mechanism for fixing the laminated material 105 is provided on the side of the frame 121.

[0060] When in use, the molding sand is paved and the molding sand surface is located between the top surface of the box body 120 and the top surface of the ore frame, and then the laminated material 105 is fixed on the ore frame. At this time, the second movable plate 108 will directly contact the laminated material 105 after moving down. In actual use, the edge of the second movable plate 108 is located above the frame 121 to ensure that the second movable plate 108 can press the laminated material 105 onto the frame 121; at this time, after the laminated material 105 and the frame 121 move down synchronously, the dense molding sand will support the laminated material 105, and the laminated material 105 can be stacked by the molding sand. The layer material 105 serves the purpose of support, and at the same time can make the laminated material 105 more evenly stressed, and protect the laminated material 105; the support ball 109 above the laminated material 105 is used to evenly disperse the pressure to the second movable plate 108, and support the laminated material 105 under the action of the molding sand, thereby achieving the compaction of the laminated material 105; first, it reduces the gap between layers during drilling, reduces burrs between layers, and improves the quality of drilling; second, it prevents the laminated material 105 from being locally stressed and deformed, thereby ensuring the quality of the laminated material 105.

[0061] In this embodiment, the fixing mechanism includes an L-shaped support plate 124 mounted on the frame 121, and a pressure block 125 slidably mounted on the flat part of the L-shaped support plate 124. A threaded hole 126 is provided on the vertical part of the L-shaped support plate 124, and a handwheel bolt 127 is provided in the threaded hole 126. The end of the handwheel bolt 127 is rotatably connected to the pressure block 125; in this way, the pressure block 125 can be moved by rotating the handwheel bolt 127, so that the pressure block 125 can approach or move away from the laminated material 105, and when it approaches the laminated material 105, the laminated material 105 can be limited.

[0062] In actual use, other fixing structures in the prior art may also be used to fix the laminated material 105 , as long as the laminated material 105 can be fixed, and they will not be described in detail here.

[0063] 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.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for reducing burrs in hole making of laminated materials, comprising a frame, characterized in that: A supporting mechanism and a pressing mechanism are provided on the frame, the supporting mechanism is located below the pressing mechanism, and a drilling assembly is provided on the pressing mechanism. The pressing mechanism is used to press and fix the laminated material placed between the supporting mechanism and the pressing mechanism on the supporting mechanism, and the drilling assembly is used to make holes in the laminated material after pressing; the pressing mechanism includes an outer cylinder, a first movable plate and a second movable plate slidably arranged in the outer cylinder, the first movable plate is located above the second movable plate, and a placement area is formed between the first and second movable plates, and a number of support balls are placed in the placement area; the first and second movable plates are connected by a guide mechanism, and the first movable plate is connected to the cross plate of the frame by a telescopic rod; a through hole is provided in the middle of the second movable plate, the drilling assembly is installed behind the first movable plate, and the lower end of the drilling assembly is located in the through hole.

2. The device for reducing burrs in hole making of laminated materials according to claim 1, characterized in that: The guide mechanism includes a guide rod and a limiting nut. A guide hole is provided on the first movable plate. The lower end of the guide rod is fixedly connected to the second movable plate. The upper end of the guide rod passes through the guide hole and is connected to the limiting nut.

3. The device for reducing burrs in hole making of laminated materials according to claim 1, characterized in that: A sliding groove is provided on the inner wall of the outer cylinder, and protrusions that slide in cooperation with the sliding groove are provided on the side walls of the first and second movable plates.

4. The device for reducing burrs in hole making of laminated materials according to claim 1, characterized in that: The telescopic rod is a hydraulic telescopic rod or a pneumatic telescopic rod.

5. The device for reducing burrs in hole making of laminated materials according to claim 1, characterized in that: The drilling assembly includes an inner cylinder, a first telescopic rod and a drilling tool. The upper end of the inner cylinder is fixedly connected to the first movable plate, and the lower end extends into the circular hole. The first telescopic rod is fixedly arranged inside the inner cylinder and connected to the drilling tool. The drilling tool is used to drill holes in laminated materials.

6. The device for reducing burrs in hole making of laminated materials according to claim 5, characterized in that: The drilling tool is an electric drill bit.

7. The device for reducing burrs in hole making of laminated materials according to claim 5, characterized in that: The drilling assembly further comprises a mounting plate, the drilling tool is mounted on the mounting plate, and the movable end of the first telescopic rod is fixedly connected to the mounting plate.

8. The device for reducing burrs in hole making of laminated materials according to claim 5, characterized in that: The first movable plate is provided with a heat dissipation hole communicated with the inner cylinder.

9. The device for reducing burrs in hole making of laminated materials according to claim 7, characterized in that: The mounting plate and the inner cylinder are slidably connected via a first sliding groove arranged on the inner cylinder side and a first sliding block arranged on the side of the mounting plate.

10. A method for reducing burrs in hole making of laminated materials, characterized by: The method comprises using the device according to any one of claims 1 to 9 to make a hole, wherein the specific process is as follows: Step 1: Fix the laminated material to be drilled on the support mechanism and adjust the position of the laminated material so that the position of the hole to be drilled is located below the drilling assembly; Step 2: The pressing mechanism moves toward the laminated material so that the pressing mechanism presses the laminated material against the supporting mechanism, thereby reducing the gap between the layers of the laminated material; Step 3: The drilling assembly passes through the clamping mechanism to make holes in the laminated material.

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