Drilling tool for lightweight composite material and use method of drilling tool

Abstract

The invention discloses a drilling tool for a lightweight composite material and a using method of the drilling tool, and belongs to the technical field of tool clamps. The tool comprises a support, a pair of linear sliding rails is arranged above the support, each sliding rail is slidably connected with a plurality of sliding blocks, the upper portion of each sliding block is fixedly connected with a supporting structure, the tops of the multiple supporting structures are fixedly connected with a rectangular frame at the same time, and the interior of the rectangular frame is connected with a plurality of drilling hole plates; a pair of first baffles is arranged behind the to-be-machined protective cross beam, a pair of first push-pull type quick clamps fixed to the support are arranged on the front side of the to-be-machined protective cross beam, a second baffle is arranged on the left side of the to-be-machined protective cross beam, and a pair of second push-pull type quick clamps fixed to the support are arranged on the right side of the to-be-machined protective cross beam and used for limiting the right side of the to-be-machined protective cross beam. According to the drilling tool, the durability of the tool clamp is guaranteed, the overall weight of the tool is greatly reduced, and meanwhile the drilling tool can meet the drilling requirements of various products by installing different drilling hole plates.

Description

Technical Field

[0001] The present invention relates to the technical field of tooling jigs, and particularly to a drilling tooling for lightweight composite materials and a using method thereof. Background Art

[0002] The front and rear protection devices of an automobile (also known as anti-collision beams and bumpers) are devices used to absorb collision energy when the vehicle is impacted, reducing the damage of the impact force to the longitudinal beam of the vehicle body, thus playing its protective role for the vehicle.

[0003] At present, the front and rear protection devices in the automotive industry mostly adopt steel or aluminum alloy structural designs. The density of steel is 7.85 g / cm3, and the density of aluminum alloy is 2.63 - 2.85 g / cm3. Although metal materials can ensure the stability and firmness of the overall vehicle frame and reduce the harm to the vehicle and personnel during impact, the overall weight is relatively heavy, increasing the vehicle operation cost. In the context of the era of pursuing "environmentally friendly and lightweight" material products, a new material PUGF that combines the advantages of "lightweight, environmentally friendly, and high strength" has emerged and been applied to the protection devices of automobiles.

[0004] During the mass production process of PUGF protection crossbeams, if the tooling jig can only be targeted at a single product, the limiting mechanism is inaccurate and inconvenient to operate, and the processing steps are cumbersome, which will greatly reduce the production efficiency and increase the production cost. Summary of the Invention

[0005] The purpose of the present invention is to provide a drilling tooling for lightweight composite materials, which can solve the deficiencies in the prior art that the tooling jig can only be targeted at a single product.

[0006] To achieve the above purpose, the present invention provides a drilling tooling for lightweight composite materials, which includes:

[0007] A bracket, the overall bracket is a rectangular parallelepiped frame;

[0008] A pair of linear guide rails, each linear guide rail is arranged on both sides of the top of the bracket along the width direction of the bracket. A plurality of sliders are slidably connected to the guide rails. A support structure is fixedly connected above each slider. A rectangular frame is fixedly connected to the tops of the plurality of support structures at the same time. A plurality of drilling hole plates with different hole pitches and in a U-shaped are connected inside the rectangular frame;

[0009] The protective crossbeam to be processed is arranged in the middle above the bracket, and there is a pair of first baffles fixed on the bracket behind it for limiting its rear position; on the side of the protective crossbeam to be processed away from the first baffle, there is a pair of first push-pull type quick clamps fixed on the bracket for limiting the front side of the protective crossbeam to be processed; on the left side of the protective crossbeam to be processed, there is a second baffle for limiting its left side, and on the right side of the protective crossbeam to be processed, there is a pair of second push-pull type quick clamps fixed on the bracket for limiting its right side;

[0010] The rectangular frame is supported by a support structure and its later horizontal height is higher than the upper surface of the protective crossbeam to be processed. During the drilling operation, it can slide directly above the protective crossbeam to be processed;

[0011] Both sides of the rectangular frame are provided with pin holes, and there are multiple pin seats on the bracket. The two are used in cooperation with pins to fix the rectangular frame.

[0012] Further, the materials of the bracket and the rectangular frame are both polyurethane fiberglass, and their density is 2.06 g / cm3.

[0013] Further, the drilling orifice plate is made of a 5-mm-thick steel plate bent and punched, and the drilling positions of the drilling orifice plate are inlaid with replaceable drill sleeves.

[0014] Further, the drilling orifice plate is connected to the rectangular frame by screws.

[0015] In addition, the present invention also provides a method for using a drilling tool for lightweight composite materials, and this method includes the following steps:

[0016] S1: Slide the rectangular frame to the end away from the first push-pull type quick clamp and fix it with a pin;

[0017] S2: Place the protective crossbeam to be processed on the bracket, make its rear side abut against the first baffle, make its left side abut against the second baffle, and fix the front side and the right side of the protective crossbeam to be processed by respectively pulling the first push-pull type quick clamp and the second push-pull type quick clamp;

[0018] S3: Pull out the pin, slide the rectangular frame to directly above the protective crossbeam to be processed, and insert the pin into the corresponding pin seat to fix the rectangular frame again, then drilling can be carried out;

[0019] S4: After the drilling operation is completed, pull out the pin, slide the rectangular frame to the end away from the first push-pull type quick clamp again, fix it with a pin, and pull the first push-pull type quick clamp and the second push-pull type quick clamp in turn to remove the protective crossbeam to be processed.

[0020] The beneficial effects of the present invention

[0021] Compared with the prior art, in the present application, the overall framework adopts a polyurethane fiberglass material that is lightweight, green and environmentally friendly, has high strength, corrosion resistance, heat resistance and waterproof performance, which not only ensures the durability of the tooling fixture, but also greatly reduces the overall weight of the tooling. At the same time, this drilling tooling can meet the drilling requirements of a variety of products by installing different drilling hole plates. Finally, a drill bushing is provided at the drilling position. When the drill is severely worn, only the drill bushing needs to be replaced, and there is no need to replace the drilling hole plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic diagram of the overall structure of the drilling tooling provided by the present invention;

[0023] Figure 2 FIG. is a schematic diagram of a partial structure of the drilling tooling provided by the present invention;

[0024] Figure 3 FIG. is a top view of the drilling tooling provided by the present invention;

[0025] Figure 4 FIG. is a side view of the drilling tooling provided by the present invention.

[0026] In the figures,

[0027] 1, support; 2, linear slide rail; 3, rectangular frame; 4, drilling hole plate; 5, protective cross beam to be processed; 6, first push-pull type quick clamp; 7, second push-pull type quick clamp; 8, first baffle; 9, second baffle; 10, pin seat; 11, pin; 12, support structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] It should be noted that the orientation or positional relationship indicated by the terms "front side", "rear side", "left", "right", etc. used herein is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for the purpose of illustration, 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, and therefore should not be construed as a limitation to the present invention.

[0030] See Figures 1-4 as shown;

[0031] A drilling tooling for lightweight composite materials, the device comprising:

[0032] A support 1, the support 1 as a whole is a rectangular parallelepiped frame;

[0033] A pair of linear slide rails 2, each of the linear slide rails 2 is arranged on both sides of the top of the bracket 1 along the width direction of the bracket 1. A plurality of sliders are slidably connected to the slide rails 2. A support structure 12 is fixedly connected above each slider. A rectangular frame 3 is fixedly connected to the tops of the plurality of support structures 12 at the same time. A plurality of drilling hole plates 4 with different hole pitches and in a shape like the Chinese character 'ji' are connected inside the rectangular frame 3;

[0034] A to-be-processed protective crossbeam 5, the to-be-processed protective crossbeam 5 is arranged in the middle above the bracket 1, and a pair of first baffles 8 fixed on the bracket 1 are arranged behind it for limiting its rear position; A pair of first push-pull type quick clamps 6 fixed on the bracket 1 are arranged on the side of the to-be-processed protective crossbeam 5 away from the first baffle 8 for limiting the front side of the to-be-processed protective crossbeam 5; A second baffle 9 is arranged on the left side of the to-be-processed protective crossbeam 5 for limiting its left side. A pair of second push-pull type quick clamps 7 fixed on the bracket 1 are arranged on the right side of the to-be-processed protective crossbeam 5 for limiting its right side; Felt is pasted on the surfaces of the first baffle 8 and the second baffle 9 to prevent scratches and knocks on the appearance of the product.

[0035] The rectangular frame 3 is supported by the support structure 12 to have a later horizontal height higher than the upper surface of the to-be-processed protective crossbeam 5, and can slide directly above the to-be-processed protective crossbeam 5 during the drilling operation;

[0036] Both sides of the rectangular frame 3 are provided with pin holes, and a plurality of pin seats 10 are arranged on the bracket 1. The two are used in cooperation with a pin 11 for fixing the rectangular frame 3.

[0037] Further, the materials of the bracket 1 and the rectangular frame 3 are both polyurethane fiberglass (PUGF), and its density is 2.06 g / cm 3 , The PUGF material has high strength and light weight, which can greatly reduce the problem of waist collapse in the middle of the frame structure and has a long service life.

[0038] Further, the drilling hole plate 4 is selected as a steel plate with a thickness of 5 mm bent and punched. The opening positions are designed according to the hole positions of the protective crossbeam products of different models. For drilling positions with a hole pitch greater than 200 mm, additional drilling hole plates need to be added. The main consideration is that if all the hole positions are placed on one drilling hole plate, it will greatly increase the overall weight of the tooling, and the hole position accuracy requirements for the entire steel plate are very high. At the same time, it also increases the subsequent maintenance cost of the tooling; The drill sleeves can be replaced inlaid in the drilling positions of the drilling hole plate 4. When the drill is severely worn, only the drill sleeve needs to be replaced, and there is no need to replace the drilling hole plate.

[0039] Further, the drilling hole plate 4 is connected to the rectangular frame 3 by screws.

[0040] In addition, the present invention also provides a method for using a drilling tooling for lightweight composite materials, which is characterized in that the method comprises the following steps:

[0041] S1: Slide the rectangular frame 3 to the end far away from the first push-pull type quick clamp 6 and fix it with the pin 11;

[0042] S2: Place the protective crossbeam 5 to be processed on the bracket 1, make its rear side abut against the first baffle 8, make its left side abut against the second baffle 9, and fix the front side and the right side of the protective crossbeam 5 to be processed by pulling the first push-pull type quick clamp 6 and the second push-pull type quick clamp 7 respectively;

[0043] S3: Pull out the pin 11, slide the rectangular frame 3 to directly above the protective crossbeam 5 to be processed. At this time, the distance between the drilling hole plate 4 and the protective crossbeam 5 to be processed is 3-6 mm. Insert the pin 11 into the pin seat 10 at the corresponding position to fix the rectangular frame 3 again, and then drilling can be carried out; after positioning the product, the operator can quickly switch the drilling positions of different types of products by moving the drilling frame on the linear guide.

[0044] S4: After the drilling work is completed, pull out the pin 11, slide the rectangular frame 3 to the end far away from the first push-pull type quick clamp 6 again, fix it with the pin 11, and pull the first push-pull type quick clamp 6 and the second push-pull type quick clamp 7 in the direction to remove the protective crossbeam 5 to be processed.

Claims

1. A drilling tool for lightweight composite materials, characterized in that: The device includes: A bracket (1), wherein the bracket (1) is a rectangular parallelepiped frame as a whole; A pair of linear slide rails (2), each of the linear slide rails (2) being arranged on both sides of the top of the bracket (1) along the width direction of the bracket (1), a plurality of sliders being slidably connected to the slide rails (2), a support structure (12) being fixedly connected above each of the sliders, a rectangular frame (3) being fixedly connected to the top of the plurality of support structures (12), a plurality of drilled perforated plates (4) having different hole spacings and in the shape of a letter "J" being connected inside the rectangular frame (3); A protective crossbeam (5) to be processed, the protective crossbeam (5) to be processed is arranged in the middle of the upper part of the support (1), and a pair of first baffles (8) fixed on the support (1) are provided at the rear of the protective crossbeam (5) for limiting the rear position; a pair of first push-pull type quick clamps (6) fixed on the support (1) are provided on the side of the protective crossbeam (5) to be processed away from the first baffle (8) for limiting the front position of the protective crossbeam (5) to be processed; a second baffle (9) is provided on the left side of the protective crossbeam (5) to limit the left side of the protective crossbeam; a pair of second push-pull type quick clamps (7) fixed on the support (1) are provided on the right side of the protective crossbeam (5) to limit the right side of the protective crossbeam; The rectangular frame (3) is supported by the supporting structure (12) to a later level higher than the upper surface of the protective beam (5) to be processed, and can slide to the top of the protective beam (5) to be processed during drilling; Pin holes are provided on both sides of the rectangular frame (3), and a plurality of pin seats (10) are provided on the bracket (1), and the two are used in conjunction with the pins (11) to fix the rectangular frame (3).

2. A lightweight composite material drilling tool according to claim 1, characterized in that: The support (1) and the rectangular frame (3) are both made of polyurethane glass fiber, and the density thereof is 2.06 g / cm3.

3. The drilling tool for lightweight composite materials according to claim 1, characterized in that: The drilling plate (4) is made of a steel plate with a thickness of 5 mm, which is bent and punched, and a replaceable drill sleeve is embedded in the drilling position of the drilling plate (4).

4. The drilling tool for lightweight composite materials according to claim 1, characterized in that: The drilled perforated plate (4) is connected to the rectangular frame (3) by means of screws.

5. The method for using a drilling tool for lightweight composite materials according to claim 1, characterized in that: The method comprises the following steps: S1: Slide the rectangular frame (3) to an end away from the first push-pull quick clamp (6) and fix it with a latch (11); S2: placing the protective beam (5) to be processed on the support (1), with its rear side against the first baffle (8) and its left side against the second baffle (9), and fixing the front side and right side of the protective beam (5) to be processed by pulling the first push-pull quick clamp (6) and the second push-pull quick clamp (7) respectively; S3: Pull out the latch (11), slide the rectangular frame (3) to the top of the protective beam (5) to be processed, insert the latch (11) into the latch seat (10) at the corresponding position to fix the rectangular frame (3) again, and then drill the hole; S4: After the drilling work is completed, the latch (11) is pulled out, and the rectangular frame (3) is slid again to one end away from the first push-pull quick clamp (6), and the latch (11) fixes it, and the first push-pull quick clamp (6) and the second push-pull quick clamp (7) are pulled in the same direction to remove the protective beam (5) to be processed.

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