Electromagnetic shielding workpiece processing platform based on PVC foam board

Abstract

The utility model discloses a PVC foam board-based electromagnetic shielding workpiece processing platform, which comprises a platform and upright posts uniformly arranged at four corners of the lower surface of the platform, the upper surface of the platform is respectively provided with a movable positioning plate and a fixed positioning plate, and the movable positioning plate and the fixed positioning plate are opposite in position. The movable positioning plates are arranged on the two sides of the platform in the length direction respectively, a driving assembly used for driving the movable positioning plates to be close to or away from the fixed positioning plates is arranged on the side, close to the movable positioning plates, of the platform, mounting holes are formed in the side surfaces of the movable positioning plates and the side surfaces of the fixed positioning plates, and positioning needles are arranged in the mounting holes. And the distance between the movable positioning plate and the fixed positioning plate can be flexibly adjusted through the driving assembly, so that electromagnetic shielding workpieces with different length specifications can be stably clamped and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the processing equipment technical field of electromagnetic shielding workpiece, concretely to a kind of electromagnetic shielding workpiece processing platform based on PVC foam board. BACKGROUND

[0002] Structural foam such as PVC foam board is a kind of lightweight high-strength closed-cell foam material formed based on plastic, which is widely used in the field of wind turbine blade core material and other fields due to its excellent mechanical properties and designability. When such materials are used as base materials for electromagnetic shielding workpieces, high-precision shape processing needs to be performed according to precise design requirements such as complex curved surfaces, specific thicknesses, and assembly interfaces before assembly.

[0003] In the high-precision processing of electromagnetic shielding workpieces based on PVC foam board, stable and reliable clamping and fixing are prerequisites for ensuring processing quality and precision. Currently, devices for fixing foam boards, such as the foam board processing clamp disclosed in Chinese patent CN210388914U, have the following limitations: First, multiple independent clamps are often used to fix the four edges or corners of the workpiece, which is cumbersome to operate and requires repeated picking up and adjusting of multiple clamps, resulting in complex processing steps and low efficiency. Second, the size and opening range of such clamps are usually fixed, and they can only accommodate workpieces within a specific size range, and cannot be flexibly adjusted to accommodate diversified workpieces of different lengths, widths, and positioning hole distributions, with poor universality. In addition, the use of a large number of independent clamps also increases equipment investment and maintenance costs. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an electromagnetic shielding workpiece processing platform based on PVC foam board. The distance between the movable positioning plate and the fixed positioning plate can be flexibly adjusted by the driving assembly, thereby stably clamping and fixing electromagnetic shielding workpieces of different length specifications, and the problems in the background art can be effectively solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an electromagnetic shielding workpiece processing platform based on PVC foam board, including a platform and a stand column uniformly arranged at the four corners of the lower surface of the platform, the upper surface of the platform is provided with a movable positioning plate and a fixed positioning plate respectively, the movable positioning plate and the fixed positioning plate are opposite in position and are arranged on both sides of the length direction of the platform respectively, the side of the platform close to the movable positioning plate is provided with a driving assembly for driving the movable positioning plate to approach or move away from the fixed positioning plate, the side surfaces of the movable positioning plate and the fixed positioning plate are both provided with mounting holes, and a positioning needle is arranged in the mounting hole.

[0006] As a preferred technical scheme of the utility model, the upper surface of the platform is provided with two mutually parallel sliding grooves along the length direction thereof, and the lower surface of the movable positioning plate is fixedly provided with two sliding blocks which are slidingly arranged in the sliding grooves.

[0007] As a preferred technical scheme of the utility model, the cross section shape of the fixed positioning plate is L-shaped, the fixed positioning plate comprises a bottom plate parallel to the platform and a side plate perpendicular to the bottom plate, the mounting hole is arranged on the side plate, the upper surface of the bottom plate and the upper surface of the platform are both provided with screw holes, and the screw holes are threadedly connected with fixed bolts.

[0008] As a preferred technical scheme of the utility model, the driving assembly comprises a mounting seat arranged on the upper surface of the platform, the mounting seat is provided with a first push rod, and the movable end of the first push rod is fixedly connected with the side surface of the movable positioning plate.

[0009] As a preferred technical scheme of the utility model, the mounting hole is a screw hole, and one end of the positioning needle is fixedly provided with a threaded portion corresponding to the screw hole.

[0010] As a preferred technical scheme of the utility model, the platform is further provided with a processing device, the processing device comprises a driving frame slidingly arranged on the platform, the driving frame comprises an upper frame, a bottom frame and two side frames, the upper frame, the bottom frame and the two side frames enclose a rectangular frame, and a movable telescopic carving machine is arranged on the upper frame.

[0011] As a preferred technical scheme of the utility model, the lower surface of the platform is provided with a second push rod, the movable end of the second push rod is connected with the bottom frame of the driving frame arranged on the lower surface of the platform, the upper surface of the upper frame is provided with a through groove, a sliding frame is slidingly arranged on the upper frame, a driving screw is rotatably arranged in the through groove, a servo motor is mounted on the side surface of the upper frame, the output shaft of the servo motor penetrates into the through groove and is connected with the driving screw through a shaft coupling, the driving screw is threadedly connected with the screw hole arranged in the middle of the side surface of the sliding frame, a third push rod is mounted on the lower surface of the sliding frame, and the carving machine is mounted on the lower surface of the movable end of the third push rod.

[0012] As a preferred technical scheme of the utility model, the lower surface of the platform is provided with two groups of four fixing blocks which are symmetrically arranged on both sides, a guide rod parallel to the telescopic direction of the second push rod is arranged between each group of fixing blocks, and the bottom frame of the driving frame is provided with a through hole corresponding to the guide rod.

[0013] As a preferred technical scheme of the utility model, the connecting frames are arranged between the columns in an X shape.

[0014] As a preferred technical scheme of the utility model, the bottom end of the column is provided with an adjustable supporting leg.

[0015] Compared with the prior art, the utility model discloses the beneficial effects are: through the drive assembly can adjust the distance between the movable positioning plate and the fixed positioning plate flexibly, thereby can stabilize the clamping of the electromagnetic shielding workpiece of different length specifications. Meanwhile, the positioning needle adopts the detachable design, can install according to the specific quantity and position distribution of the workpiece both ends positioning hole, further expands the adaptability of platform to different shape, different interface size workpiece, improves the versatility and application range of the processing platform. The whole clamping process is simple to operate, improves the work efficiency, and simultaneously does not need to use a large number of independent clamping ware, reduces the equipment investment and maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view structure schematic diagram of the utility model;

[0017] Figure 2 It is the top view structure schematic diagram of the utility model;

[0018] Figure 3 It is the side view structure schematic diagram of the utility model;

[0019] Figure 4 It is the three-dimensional structure schematic diagram of the utility model;

[0020] Figure 5 It is the three-dimensional bottom view structure schematic diagram of the utility model;

[0021] Figure 6 It is the structure schematic diagram of the positioning needle of the utility model.

[0022] In the drawing: 1 platform, 2 stand, 3 connecting frame, 4 adjustable foot, 5 movable positioning plate, 6 sliding slot, 7 fixed positioning plate, 8 fixed bolt, 9 mounting seat, 10 first push rod, 11 positioning needle, 12 threaded portion, 13 handle portion, 14 drive frame, 15 second push rod, 16 fixed block, 17 guide rod, 18 through slot, 19 sliding frame, 20 servo motor, 21 drive screw, 22 third push rod, 23 engraving machine. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figures 1-6The utility model provides a technical scheme: a kind of electromagnetic shielding workpiece processing platform based on PVC foam board, including platform 1 and the column 2 of uniformity being arranged at the lower surface four corners of platform 1, the upper surface of platform 1 is respectively provided with movable positioning plate 5 and fixed positioning plate 7, movable positioning plate 5 and fixed positioning plate 7 position are opposite, respectively being arranged in the length direction of platform 1, the side projection of movable positioning plate 5 and fixed positioning plate 7 is identical, to ensure the uniform clamping of workpiece.The side of platform 1 close to movable positioning plate 5 is provided with the drive assembly for driving movable positioning plate 5 to be close to or away from fixed positioning plate 7, the distance between movable positioning plate 5 and fixed positioning plate 7 can be adjusted, to be suitable for clamping and fixing different specifications, length electromagnetic shielding workpiece.The side surface of movable positioning plate 5 and fixed positioning plate 7 is all provided with mounting hole, and detachable positioning needle 11 is arranged in mounting hole, positioning needle 11 corresponds with the positioning hole of the both ends of external electromagnetic shielding workpiece, and positioning needle 11 can be flexibly installed to corresponding position according to the positioning hole quantity and position of the both ends of electromagnetic shielding workpiece, to realize the clamping and fixing of different electromagnetic shielding workpiece and process, greatly improve universality.

[0025] Compared with the prior art which needs to use multiple independent clamps for complicated fixing, the present application adjusts the main clamping direction through an integrated drive assembly, and cooperates with the pre-set positioning needle 11 mounting hole, so that the clamping process is greatly simplified. The operator does not need to frequently operate multiple clamps, which significantly reduces the preparation time and operation complexity of workpiece clamping, thereby improving the overall processing efficiency.

[0026] In the preferred technical solution, two mutually parallel sliding grooves 6 are formed in the upper surface of the platform 1 along the length direction thereof, and two sliding blocks are fixedly arranged on the lower surface of the movable positioning plate 5 and slidably arranged in the sliding grooves 6. The movable positioning plate 5 moves along the length direction of the platform 1 by sliding the sliding blocks to adapt to electromagnetic shielding workpieces of different specifications and lengths. At the same time, the mutually parallel sliding grooves 6 and the matching sliding blocks provide accurate and stable linear guidance for the movement of the movable positioning plate 5, ensuring that the movable positioning plate 5 moves smoothly along the predetermined trajectory during the adjustment process, effectively preventing deviation or jamming. Not only does this realize the universality of quickly adapting to workpieces of different lengths, but also significantly improves the repeat positioning accuracy and centring of workpiece clamping, providing reliable protection for subsequent high-precision processing.

[0027] Optionally, the bottom end of the sliding block can be provided with a pulley or a ball, converting sliding friction into rolling friction, greatly reducing the resistance when the movable positioning plate 5 moves, making the clamping process more labor-saving and smooth, reducing the wear between the sliding block and the sliding groove 6, and prolonging the service life.

[0028] Preferably, the fixed positioning plate 7 is L-shaped in cross section, and includes a bottom plate parallel to the platform 1 and a side plate perpendicular to the bottom plate. The L-shaped fixed positioning plate 7 is particularly rigid, thereby improving clamping stability. The mounting holes are formed in the corresponding side plates. The upper surface of the bottom plate and the upper surface of the platform 1 are both provided with screw holes, and a fixing bolt 8 is threadedly connected in the screw holes to fix the fixed positioning plate 7 to the platform 1. The fixing bolt 8 is convenient to disassemble and maintain.

[0029] Preferably, the driving assembly includes a mounting seat 9 mounted on the upper surface of the platform 1, and a first push rod 10 is arranged on the mounting seat 9. The movable end of the first push rod 10 is fixedly connected to the side surface of the movable positioning plate 5. The first push rod 10 can be a commonly used electric push rod, a hydraulic cylinder or an air cylinder, etc. The movable positioning plate 5 is pushed or pulled by the first push rod 10, so that the distance between the movable positioning plate 5 and the fixed positioning plate 7 is conveniently adjusted, and then workpieces of different specifications and lengths are fixed.

[0030] Preferably, the mounting holes are screw holes, and one end of the positioning needle 11 is fixedly provided with a threaded portion 12 corresponding to the screw hole. The diameter of the threaded portion 12 is slightly larger than the diameter of the positioning needle 11. The positioning needle 11 can be threadedly connected to the mounting hole through the threaded portion 12. The positioning needle 11 can be quickly installed in the mounting hole at the corresponding position according to the positioning holes at the two ends of different workpieces. The operation is simple and convenient to use.

[0031] Optionally, the end of the positioning needle 11 is provided with a rounded corner. This effectively avoids scratching or cutting damage to the hole wall or the end surface of the workpiece when the positioning needle 11 is inserted into the positioning hole. In particular, the integrity of the surface of a relatively soft workpiece such as a PVC foam board is protected. The rounded corner also has a guiding effect, so that the positioning needle 11 can be more smoothly aligned and guided into the positioning hole during insertion, thereby significantly reducing the assembly resistance and facilitating quick and accurate clamping of the workpiece.

[0032] Optionally, the other end of the threaded portion 12 is provided with a handle portion 13. The handle portion 13 can be hexagonal. When the positioning needle 11 is installed, the handle portion 13 can be held by hand to make the positioning needle 11 pass through the mounting hole from the rear side of the movable positioning plate 5 or the fixed positioning plate 7, so that the threaded portion 12 enters the mounting hole. Then, the positioning needle 11 can be installed in place by rotating the handle portion 13. The operation is even simpler, and the work efficiency is further improved.

[0033] Preferably, the connecting frame 3 in the shape of "X" is arranged between the columns 2, thereby enhancing the structural rigidity and overall stability of the bottom of the entire machining platform.

[0034] Further preferably, adjustable feet 4 are provided at the bottom end of the column 2. The adjustable feet 4 can be connected to the bottom end of the column 2 by bolts. By rotating the adjustable feet 4, the height of each column 2 can be adjusted, enabling the processing platform to achieve active leveling, facilitating quick and stable installation on a non-ideally flat ground, and effectively compensating for ground unevenness or minor deformations of the platform 1 itself through fine adjustment, ensuring that the working plane of the platform always remains horizontal, thereby eliminating clamping errors and processing deviations caused by the inclination of the platform 1 and guaranteeing the final processing accuracy of the workpiece.

[0035] In an optional technical solution, a processing device is further provided on the platform 1. The processing device includes a driving frame 14 slidably arranged on the platform 1. The driving frame 14 includes an upper frame, a bottom frame and two side frames. The upper frame, the bottom frame and the two side frames enclose a rectangular frame. A movable and telescopic engraving machine 23 is provided on the upper frame. Through the movement of the driving frame 14 in cooperation with the movable and telescopic movement of the engraving machine 23, three-dimensional movement of the engraving machine 23 can be achieved, namely moving along the length direction, width direction and height direction of the platform 1, and the position of the engraving needle of the engraving machine 23 can be adjusted, so as to perform high-precision contour processing on the locked and fixed workpiece.

[0036] Further optionally, a second push rod 15 is provided on the lower surface of the platform 1. The movable end of the second push rod 15 is connected to the bottom frame of the driving frame 14 provided on the lower surface of the platform 1. The second push rod 15 can be selected as a common electric push rod, hydraulic cylinder or air cylinder, etc. By pushing the driving frame 14 to move along the length direction of the platform 1 through the second push rod 15, the engraving machine 23 is driven to move along the length direction of the platform 1.

[0037] A through groove 18 is formed on the upper surface of the upper frame of the driving frame 14, and a sliding frame 19 is slidably arranged on the upper frame. The cross-sectional shape of the sliding frame 19 is "day" shaped and is adapted to the upper frame and the through groove 18. A driving screw rod 21 is rotatably arranged in the through groove 18. A servo motor 20 is installed on the side surface of the upper frame. The output shaft of the servo motor 20 penetrates into the through groove 18 and is connected to the driving screw rod 21 through a coupling. The driving screw rod 21 is threadedly connected to a threaded hole formed in the middle of the side surface of the sliding frame 19. By driving the driving screw rod 21 to rotate through the servo motor 20, the sliding frame 19 can be driven to slide outside the upper frame. The upper frame is perpendicular to the length direction of the platform 1, that is, the sliding frame 19 can drive the engraving machine 23 to move along the width direction of the platform 1.

[0038] The lower surface of the sliding frame 19 is provided with a third push rod 22, which can be a common electric push rod or a hydraulic cylinder or a pneumatic cylinder, etc. A carving machine 23 is installed on the lower surface of the movable end of the third push rod 22. The carving machine 23 is driven to rise and fall by the third push rod 22, so as to move in the height direction of the platform 1. In cooperation with the second push rod 15 and the servo motor 20, the three-axis direction movement of the carving machine 23 can be realized, and the machining task of a complex curved surface profile can be efficiently and high-quality completed.

[0039] Further, the two side frames of the driving frame 14 are provided with a "C" shaped block corresponding to the end surface of the platform 1, that is, the two side frames are clamped at the two ends of the platform 1 through the "C" shaped block. During the movement of the driving frame 14, the desktop of the platform 1 is clamped by the "C" shaped block and the bottom frame, so that the movement is more stable.

[0040] Further, the inner side of the "C" shaped block can be provided with a pulley or a ball bearing at the contact end of the platform 1. The sliding friction between the driving frame and the platform is converted into rolling friction, which reduces the resistance when the driving frame 14 moves along the length direction of the platform 1, so that the driving of the second push rod 15 is more smooth and labor-saving, and it is also beneficial to realize more precise position control.

[0041] Further, the lower surface of the platform 1 is provided with two groups of four fixed blocks 16 symmetrically arranged on both sides, and a guide rod 17 parallel to the extension direction of the second push rod 15 is arranged between each group of fixed blocks 16. The bottom frame side surface of the driving frame 14 is provided with a through hole corresponding to the guide rod 17. When the driving frame 14 is moved outside the platform 1 by the second push rod 15, the driving frame 14 also moves on the guide rod 17. The guide rod 17 plays a guiding role for the driving frame 14, and provides accurate and rigid linear motion guidance for the driving frame 14 and the machining device thereon. The guide rod 17 can effectively constrain the lateral deviation and swing of the driving frame 14 during movement, so as to ensure that the movement trajectory of the carving machine 23 along the length direction of the platform 1 always maintains high straightness and repeat positioning accuracy, thereby providing a key guarantee for the longitudinal machining size consistency of the workpiece. At the same time, the guide rod 17 shares the lateral force borne by the second push rod 13, thereby improving the stability and durability of the driving system.

[0042] The first push rod 10, the second push rod 15, the third push rod 22, the servo motor 20, the carving machine 23, etc. used in the present application are all powered by an external power supply and controlled by an external control switch or a controller, etc. The first push rod 10, the second push rod 15, the third push rod 22, the servo motor 20, the carving machine 23, etc. used in the present application are all common electronic components in the prior art, and their specific structure, working principle, control mode and circuit connection, etc. are all known technologies, which will not be described in detail here.

[0043] The specific structure, material and working principle of the non-disclosed part in the utility model are not described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A PVC foam board-based electromagnetic shielding workpiece processing platform, comprising a platform (1) and a stand (2) uniformly arranged at the four corners of the lower surface of the platform (1), characterized in that: The upper surface of the platform (1) is respectively provided with a movable positioning plate (5) and a fixed positioning plate (7), the movable positioning plate (5) and the fixed positioning plate (7) are opposite to each other and are respectively arranged on the two sides of the platform (1) in the length direction, one side of the platform (1) close to the movable positioning plate (5) is provided with a driving assembly for driving the movable positioning plate (5) to be close to or away from the fixed positioning plate (7), the side surface of the movable positioning plate (5) and the fixed positioning plate (7) is provided with a mounting hole, and a positioning needle (11) is arranged in the mounting hole; the platform (1) is further provided with a processing device, the processing device comprises a driving frame (14) slidably arranged on the platform (1), the driving frame (14) comprises an upper frame, a bottom frame and two side frames, the upper frame, the bottom frame and the two side frames form a rectangular frame, and a movable and telescopic carving machine (23) is arranged on the upper frame.

2. The electromagnetic shielding workpiece processing platform based on a PVC foamed sheet according to claim 1, characterized in that: The upper surface of the platform (1) is provided with two parallel sliding grooves (6) along the length direction, and the lower surface of the movable positioning plate (5) is fixedly provided with two sliding blocks which are slidably arranged in the sliding grooves (6).

3. The electromagnetic shielding workpiece processing platform based on a PVC foam sheet according to claim 1, characterized in that: The fixed positioning plate (7) is L-shaped in cross section, and comprises a bottom plate parallel to the platform (1) and a side plate perpendicular to the bottom plate, the mounting hole is arranged on the side plate, and the upper surface of the bottom plate and the upper surface of the platform (1) are provided with screw holes, and the screw holes are threadedly connected with fixed bolts (8).

4. The electromagnetic shielding workpiece processing platform based on a PVC foamed sheet according to claim 2, characterized in that: The driving assembly comprises a mounting seat (9) arranged on the upper surface of the platform (1), and a first push rod (10) is arranged on the mounting seat (9), and the movable end of the first push rod (10) is fixedly connected with the side surface of the movable positioning plate (5).

5. The electromagnetic shielding workpiece processing platform based on a PVC foam sheet according to claim 1, characterized in that: The mounting hole is a screw hole, and one end of the positioning needle (11) is fixedly provided with a threaded portion (12) corresponding to the screw hole.

6. The electromagnetic shielding workpiece processing platform based on a PVC foam sheet according to claim 1, characterized in that: The lower surface of the platform (1) is provided with a second push rod (15), the movable end of the second push rod (15) is connected with the bottom frame of the driving frame (14) arranged on the lower surface of the platform (1); the upper surface of the upper frame is provided with a through groove (18), and a sliding frame (19) is slidably arranged on the upper frame, a driving screw (21) is rotatably arranged in the through groove (18), a servo motor (20) is mounted on the side surface of the upper frame, the output shaft of the servo motor (20) penetrates into the through groove (18) and is connected with the driving screw (21) through a shaft coupling, and the driving screw (21) is threadedly connected with the screw holes arranged in the middle of the side surface of the sliding frame (19); a third push rod (22) is mounted on the lower surface of the sliding frame (19), and a carving machine (23) is mounted on the lower surface of the movable end of the third push rod (22).

7. The electromagnetic shielding workpiece processing platform based on a PVC foam sheet according to claim 6, characterized in that: The lower surface of the platform (1) is provided with two groups of four fixed blocks (16) which are symmetrically arranged on the two sides, a guide rod (17) parallel to the telescopic direction of the second push rod (15) is arranged between each group of fixed blocks (16), and a through hole corresponding to the guide rod (17) is arranged on the side surface of the bottom frame of the driving frame (14).

8. The electromagnetic shielding workpiece processing platform based on a PVC foam sheet according to claim 7, characterized in that: The connecting frame (3) is arranged between the columns (2).

9. The electromagnetic shielding workpiece processing platform based on a PVC foam sheet according to any one of claims 1-8, characterized in that: The bottom end of the column (2) is provided with an adjustable supporting leg (4).

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