Surface shallow groove machining equipment suitable for irregular blocky materials

Abstract

The surface shallow groove machining equipment comprises a rack, a feeding device and a cutting device, the feeding device and the cutting device are arranged on the rack, a front carrying table and a rear carrying table are arranged on the upper portion of the rack, and the feeding device comprises a pushing mechanism and a clamping mechanism; the cutting device comprises a fixed cutter group arranged between the front carrying table and the rear carrying table; when a to-be-machined workpiece passes through the fixed cutter set from the upper portion, the annular saw blade rotating at a high speed cuts a plurality of grooves in the lower surface of the to-be-machined workpiece. A plurality of shallow grooves are formed at a time through the fixed cutter set, transverse shallow grooves are machined through the movable cutter set, the machining efficiency is effectively improved, products are pushed and clamped through the air cylinder, the grooving speed is uniform, stress is stable, burrs and accumulated chippings are not prone to being generated in the shallow grooves, the appearance quality of the products is effectively improved, and the product quality is improved. And the to-be-machined part can float up and down during machining through the floating mechanism, so that the surface machining device can better adapt to machining of irregular material surfaces.

Description

Technical Field

[0001] The invention belongs to the field of composite material processing, and in particular relates to surface shallow groove processing equipment suitable for irregular block materials. Background Art

[0002] During the mold closing phase of wind turbine blade production, gaps form within the mold, and the cavity exhibits irregular surfaces. Due to the strength requirements of the blade design, these irregular cavities are filled with composite materials to enhance their strength. The composite material used in the filling has certain requirements for resin flow, so shallow surface grooves are added during the initial design. Because the composite material blocks have multiple continuous but irregular surfaces, traditional grooving equipment struggles to meet these surface grooving requirements. Problems arise, such as excessive thickness that prevents them from passing through the equipment, uneven contours resulting in inconsistent groove depths, and frequent dimensional changes. Currently, manual grooving is the primary method used.

[0003] When manually grooving, the irregular contour will cause large errors in the groove spacing and groove depth. Because the saw blade is thin and the force is uneven, debris is easily accumulated in the shallow groove and burrs are easily generated on the surface, which cannot meet the requirements of dimensional accuracy and surface quality. In addition, manually grooving multiple grooves is time-consuming and labor-intensive, with high labor costs and low production efficiency, and product quality is uncontrollable.

[0004] With the continuous improvement of the requirements for surface quality and processing accuracy, optimizing processing methods and improving processing accuracy is one of the ways to ensure the competitiveness of enterprises.

[0005] Patent publication number CN201446597U, titled "Slotting Machine for Sandwich Panels," discloses a slotting machine for sandwich panels. The machine features a saw blade assembly mounted above a movable worktable. The assembly can be configured with three, five, eight, or ten blades, depending on the needs. The machine can simultaneously cut as many slots as the number of blades, significantly improving work efficiency and slotting accuracy, thereby enhancing product quality. This slotting machine is suitable for workpieces in the form of plates or rectangular blocks, but is less suitable for slotting workpieces with irregular surfaces.

[0006] In view of this, it is necessary to provide a device that can perform shallow groove processing on the irregular contour surface of block composite materials, so as to reduce processing costs while improving product processing efficiency, dimensional accuracy and surface quality. Summary of the Invention

[0007] The purpose of the present invention is to provide a shallow groove processing device suitable for irregular profile surfaces of composite materials, which is designed and developed based on a series of problems that occur when processing shallow grooves on irregular profile surfaces of composite materials.

[0008] In order to solve the above technical problems, the present invention discloses a surface shallow groove processing equipment suitable for irregular block materials, comprising a frame and a feeding device and a cutting device arranged on the frame, a front loading platform and a rear loading platform are provided on the upper part of the frame, and the rear loading platform is not higher than the front loading platform; the feeding device comprises a pushing mechanism and a clamping mechanism, the pushing mechanism comprises a push rod and a first driving device for driving the push rod to move parallel to the front loading platform; the clamping mechanism comprises a pair of chucks rotatably mounted at both ends of the push rod and a second driving device for driving the chucks to clamp the workpiece to be processed; the cutting device comprises a fixed tool group arranged between the front loading platform and the rear loading platform, the fixed tool group comprises a rotating shaft driven by a motor, a plurality of annular saw blades are arranged on the rotating shaft along the axis, and the rotating shaft is perpendicular to the feeding direction of the feeding device; the upper end of the annular saw blade is higher than the front loading platform;

[0009] During processing, the clamping mechanism clamps the workpiece to be processed from both sides, and the pushing mechanism pushes the clamping mechanism to move, so that the workpiece to be processed moves backward against the front platform. When the workpiece to be processed passes through the fixed tool group from above, the high-speed rotating annular saw blade cuts multiple first grooves on the lower surface of the workpiece to be processed.

[0010] Preferably, the front platform is higher than the rear platform, or

[0011] The front platform and the rear platform form an angle of 140°-180°.

[0012] Preferably, the first driving device includes a first cylinder group and a first track group, and the cylinder of the first cylinder group pushes the push rod to slide along the first track group.

[0013] Preferably, the second driving device includes a second cylinder group and a pair of carrier plates for mounting the second cylinder group, the pair of cylinders of the second cylinder group are mounted on the carrier plates, the frame is provided with a second track group for moving the carrier plates; both ends of the push rod are connected to the carrier plates.

[0014] Preferably, the cutting device further comprises a movable tool set, and the movable tool set is used to machine a second groove having an included angle with the first groove on the lower surface of the workpiece while machining the first groove.

[0015] Preferably, the movable tool group includes a saw wheel driven by a motor and a slide for mounting the saw wheel. The slide is driven to move by a screw. A window is processed on the rear platform, and the upper end of the saw wheel is exposed from the window and is higher than the rear platform.

[0016] Preferably, the screw forms an angle of 90±15° with the feeding direction.

[0017] Preferably, the chuck is connected to the cylinder of the second cylinder group through a floating mechanism; the floating mechanism includes a mounting plate with a vertical slide groove, and a slider adapted to the vertical slide groove is provided on the side of the chuck near the hanging plate, and the slider moves up and down along the slide groove.

[0018] Preferably, bearing seats with base plates are provided at both ends of the rotating shaft of the fixed tool group, the base plates are installed on the frame, a spring is provided between the bearing seats and the base plates, and the upper and lower elastic floating of the rotating shaft and the annular saw blade is achieved through the slide groove and the slider.

[0019] Preferably, the front platform is detachably fixed to the frame, and the depth of the first groove can be adjusted by replacing the front platform with different thicknesses.

[0020] The surface shallow groove processing equipment of the present invention, which is applicable to irregular block materials, has at least the following advantages:

[0021] 1. The fixed tool group can open multiple shallow grooves at one time, which effectively improves the processing efficiency and can quickly groove one or more surfaces of block materials.

[0022] 2. The cylinder pushes and clamps the product, and the speed is uniform and the force is stable during grooving. It is not easy to generate burrs and accumulate debris in the shallow groove, which effectively improves the surface quality of the product.

[0023] 3. The mobile tool group can process horizontal shallow grooves to meet the diversified needs of shallow groove processing; the mobile tool group and the fixed tool group can process shallow grooves in two directions in one feeding.

[0024] 4. The floating mechanism enables the workpiece to float up and down during processing. Combined with the rotatable chuck, the present invention can better adapt to the processing of irregular material surfaces.

[0025] 5. The floating design of the fixed tool group enables the fixed tool group to adapt to some curved surfaces with rapid fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the top view of the structure of a surface shallow groove processing equipment suitable for irregular block materials.

[0027] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the surface shallow groove processing equipment suitable for irregular block materials.

[0028] Figure 3 for Figure 2 Another angle view of the surface shallow groove processing equipment suitable for irregular block materials.

[0029] Figure 4 This is a structural diagram of a fixed tool assembly bearing seat.

[0030] Figure 5 It is a structural schematic diagram of another movable tool group slide.

[0031] Figure 6 It is a structural diagram of a floating mechanism.

[0032] The numbers in the figure are: frame 1, second rail group 110, window 120, motor 130, pushing mechanism 2, push rod 210, first drive device 220, first cylinder group 221, first rail group 222, clamping mechanism 3, chuck 310, second drive device 320, second cylinder group 321, carrier plate 322, front platform 4, rear platform 5, fixed tool group 6, rotating shaft 610, annular saw blade 620, bearing seat 630, base plate 640, spring 650, slide 660, slide rod 670, movable tool group 7, saw wheel 710, slide seat 720, screw 730, floating mechanism 8, mounting plate 810, vertical slide 811, slider 820. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below through examples so that those skilled in the art can implement the invention with reference to the description.

[0034] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0035] Example 1

[0036] like Figures 1 to 3 As shown, a surface shallow groove processing equipment suitable for irregular block materials includes a frame 1 and a feeding device and a cutting device arranged on the frame. A front loading platform 4 and a rear loading platform 5 are provided on the upper part of the frame 1, and the rear loading platform 5 is not higher than the front loading platform 4; the feeding device includes a pushing mechanism 2 and a clamping mechanism 3, the pushing mechanism 2 includes a push rod 210 and a first driving device 220 for driving the push rod to move parallel to the front loading platform 4; the clamping mechanism 3 includes a pair of chucks 310 installed at both ends of the push rod and rotatable (for example, a rotating shaft is set at the center of the chuck) and a second driving device for driving the chuck 310 to clamp the workpiece to be processed. Device 320; the cutting device includes a fixed tool group 6 arranged between the front platform 4 and the rear platform 5, the fixed tool group 6 includes a rotating shaft 610 driven by a motor 130, and a plurality of annular saw blades 620 are arranged along the axis of the rotating shaft, and the rotating shaft is perpendicular to the feeding direction of the feeding device; the upper end of the annular saw blade 620 is higher than the front platform 4; it is worth noting that the irregular block material in the present invention is relative to the block material with a flat surface such as a plate or square material. The surface of some block materials used for wind turbine blades is mostly a curved surface with small undulations. We call this part of the block material an irregular block material.

[0037] During processing, the clamping mechanism clamps the workpiece to be processed from both sides, and the pushing mechanism pushes the clamping mechanism to move, so that the front platform 4 of the workpiece to be processed moves backward. When the workpiece to be processed passes through the fixed tool group 6 from above, the high-speed rotating annular saw blade 620 cuts multiple first grooves on the lower surface of the workpiece to be processed.

[0038] The front platform 4 is higher than the rear platform 5, or the front platform 4 and the rear platform 5 form an angle of 140°-180°. This arrangement allows irregular surfaces of the workpiece to be processed to sink after passing over the fixed tool assembly 6 without being blocked by the rear platform 5. Since the bulk composite material used to fill wind turbine blades has an irregular surface, the fluctuations are small and continuous. Combined with the rotatable chuck 310, it is possible to ensure that the lower surface of the bulk composite material remains in contact with the fixed tool assembly 6 when processing most bulk composite materials. In this embodiment, the front platform 4 is higher than the rear platform 5.

[0039] The first driving device 220 includes a first cylinder group 221 and a first track group 222 , and the cylinder of the first cylinder group pushes the push rod to slide along the first track group.

[0040] The second driving device 320 includes a second cylinder group 321 and a pair of carrier plates 322 for mounting the second cylinder group. The pair of cylinders of the second cylinder group are mounted on the carrier plates 322. The frame 1 is provided with a second track group 110 for moving the carrier plates 322. Both ends of the push rod are connected to the carrier plates 322.

[0041] The cutting device further comprises a movable tool set 7, which is used to machine a second groove having an included angle with the first groove on the lower surface of the workpiece while machining the first groove.

[0042] The movable tool group 7 includes a saw wheel 710 driven by a motor and a slide 720 for mounting the saw wheel. The slide is driven to move by a screw 730. A window 120 is processed on the rear platform 5. The upper end of the saw wheel 710 is exposed from the window and is higher than the rear platform 5.

[0043] The screw 730 forms an angle of 90±15° with the feeding direction. In this embodiment, the screw 730 forms an angle of 90° with the feeding direction; when the screw is designed to be oblique, the second groove can be made perpendicular to the first groove by controlling the traverse speed of the saw wheel 710 and the feeding speed.

[0044] The front platform 4 is detachably fixed to the frame 1 , and the depth of the first groove can be adjusted by replacing the front platform 4 with different thicknesses.

[0045] Example 2

[0046] like Figure 4As shown, it is similar to Example 1, with the difference that bearing seats 630 with base plates 640 are provided at both ends of the rotating shaft of the fixed tool group 6, the base plates are installed on the frame, and a spring 650 is provided between the bearing seat and the base plate, and the upper and lower elastic floating of the rotating shaft and the annular saw blade 620 is achieved through the slide groove 660 and the slide rod 670 (in this embodiment, the slide groove is provided on the bearing seat, and the slide rod is provided on the base plate), which enables the fixed tool group 6 to adapt to some curved surfaces with faster fluctuations, and is the requirement that the equipment can be applied to more types of composite material surface grooving processing.

[0047] Similarly, if Figure 5 As shown, the slide of the movable tool group can also adopt this structural setting to allow the saw wheel to have the freedom to float up and down.

[0048] Example 3

[0049] like Figure 6 The embodiment shown is similar to that of Example 1, differing in that the chuck 310 is connected to the cylinders of the second cylinder group via a floating mechanism 8. The floating mechanism comprises a mounting plate 810 with a vertical slot 811. A slider 820, adapted to the slot, is located on the side of the chuck 310 near the mounting plate and moves up and down along the slot. When the workpiece is in the final stage of machining and the chuck 310 is near the fixed tool assembly 6, the floating mechanism allows the chuck 310 to move upward when the irregular lower surface of the workpiece is lifted by the fixed tool assembly 6, thereby preventing the safety hazard of the workpiece's rear end being significantly tilted upward due to leverage.

[0050] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A surface shallow groove processing device suitable for irregular block materials, characterized by: The machine comprises a frame, a feeding device and a cutting device arranged on the frame, a front loading platform and a rear loading platform are arranged on the upper part of the frame, and the rear loading platform is not higher than the front loading platform; the feeding device comprises a pushing mechanism and a clamping mechanism, the pushing mechanism comprises a push rod and a first driving device for driving the push rod to move parallel to the front loading platform; the clamping mechanism comprises a pair of chucks rotatably mounted at both ends of the push rod and a second driving device for driving the chucks to clamp the workpiece to be processed; the cutting device comprises a fixed tool group arranged between the front loading platform and the rear loading platform, the fixed tool group comprises a rotating shaft driven by a motor, a plurality of annular saw blades are arranged on the rotating shaft along the axis, and the rotating shaft is perpendicular to the feeding direction of the feeding device; the upper end of the annular saw blade is higher than the front loading platform; During processing, the clamping mechanism clamps the workpiece to be processed from both sides, and the pushing mechanism pushes the clamping mechanism to move, so that the workpiece to be processed moves backward against the front platform. When the workpiece to be processed passes through the fixed tool group from above, the high-speed rotating annular saw blade cuts multiple first grooves on the lower surface of the workpiece to be processed.

2. The surface shallow groove processing equipment suitable for irregular block materials according to claim 1 is characterized in that: The front stage is higher than the rear stage, or The front platform and the rear platform form an angle of 140°-180°.

3. The surface shallow groove processing equipment suitable for irregular block materials according to claim 1 is characterized in that: The first driving device includes a first cylinder group and a first track group, and the cylinder of the first cylinder group pushes the push rod to slide along the first track group.

4. The surface shallow groove processing equipment suitable for irregular block materials according to claim 3 is characterized in that: The second driving device includes a second cylinder group and a pair of carrier plates for mounting the second cylinder group. The pair of cylinders of the second cylinder group are mounted on the carrier plates. The frame is provided with a second track group for moving the carrier plates. Both ends of the push rod are connected to the carrier plates.

5. The surface shallow groove processing equipment suitable for irregular block materials according to claim 2 is characterized in that: The cutting device further comprises a movable tool set, which is used for machining a second groove having an included angle with the first groove on the lower surface of the workpiece while machining the first groove.

6. The surface shallow groove processing equipment suitable for irregular block materials according to claim 5 is characterized in that: The movable tool group includes a saw wheel driven by a motor and a slide for mounting the saw wheel. The slide is driven to move by a screw. A window is processed on the rear platform. The upper end of the saw wheel is exposed from the window and is higher than the rear platform.

7. The surface shallow groove processing equipment suitable for irregular block materials according to claim 6 is characterized in that: The screw forms an angle of 90±15° with the feeding direction.

8. The surface shallow groove processing equipment suitable for irregular block materials according to claim 4 is characterized in that: The chuck is connected to the cylinder of the second cylinder group through a floating mechanism; the floating mechanism includes a mounting plate with a vertical slide groove, and a slider adapted to the vertical slide groove is provided on the side of the chuck near the hanging plate, and the slider moves up and down along the slide groove.

9. The surface shallow groove processing equipment suitable for irregular block materials according to claim 1 is characterized in that: The two ends of the rotating shaft of the fixed tool group are provided with bearing seats with base plates, the base plates are installed on the frame, a spring is provided between the bearing seats and the base plates, and the upper and lower elastic floating of the rotating shaft and the annular saw blade is achieved through the slide groove and the slider.

10. The surface shallow groove processing equipment suitable for irregular block materials according to claim 1 is characterized in that: The front loading platform is detachably fixed on the frame, and the depth of the first groove can be adjusted by replacing the front loading platforms with different thicknesses.

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