Grinding machine for removing burrs of glass fiber reinforced plastic film shell

Abstract

A grinding machine for removing burrs of a glass fiber reinforced plastic film shell relates to the technical field of pipe fitting grinding machines and comprises a pipe fitting grinding machine body and a mounting rod, two movable mounting frames are slidably mounted at the top of the machine body and are respectively provided with an electric push rod and a servo motor, output shafts of the electric push rod and the servo motor are fixedly provided with rotating discs and are connected with fixing cylinders, and the mounting rod is slidably connected with two abutting rods in a penetrating mode. An inner roundness supporting mechanism is arranged on the outer walls of the abutting rods and used for supporting a workpiece from the inside to keep roundness, the inner roundness supporting mechanism drives hinge rods and supporting plates which are evenly distributed in the circumferential direction to expand outwards through synchronous movement of the two abutting rods, the inner wall of the glass fiber reinforced plastic membrane shell is supported through synchronous radial diffusion of the multiple supporting plates, and an accurate rotation reference is established for subsequent grinding. The problem that defective products with uniform diameters and incorrect axes are machined due to the fact that the cylindrical workpieces are bent in the grinding process is fundamentally prevented, it is guaranteed that grinding operation is carried out based on an ideal cylindrical standard with corrected roundness and straightness, and cylindricity of finished products is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe grinder, in particular to a glass fiber reinforced plastic membrane shell burr removing grinder. BACKGROUND

[0002] The glass fiber reinforced plastic membrane shell is the core pressure-bearing component of the membrane water treatment system such as reverse osmosis and nanofiltration, which functions to contain and seal the stacked membrane elements and ensure the safe and stable operation of the system under high pressure. According to the working pressure, it can be divided into low-pressure membrane shell and high-pressure membrane shell. The main material is a composite material of epoxy resin and glass fiber, which is manufactured by fiber winding forming process, has the advantages of corrosion resistance, light weight, high strength, etc., and is widely used in many fields such as electronic ultra-pure water, seawater desalination, biopharmaceuticals, food and beverages, etc.

[0003] At present, the mainstream production process of glass fiber reinforced plastic membrane shell is fiber winding forming: glass fiber impregnated with epoxy resin is wound on the core mold at a specific angle, and after heating and curing, the rough part is obtained. The rough part after demolding has a rough surface, obvious joint line (burr) and resin enrichment area, and its roughness, smoothness and aesthetic degree cannot meet the requirements of the final product, so it must be subjected to subsequent surface polishing, repair and paint spraying treatment to achieve a smooth and beautiful appearance and ensure that the external protective coating has good adhesion.

[0004] Although the glass fiber reinforced plastic composite material has high strength, its elastic modulus is relatively low compared to metal. For thin-walled cylindrical workpieces with large length-diameter ratio, under the influence of self-weight, residual stress (derived from the curing process), creep caused by improper storage and environmental temperature and humidity changes, the workpiece often has initial bending deformation or end oval deformation. The traditional polishing method clamps the cylindrical end or outer wall of the glass fiber reinforced plastic membrane shell through a clamp before polishing, which can easily cause the workpiece to further increase the deformation error. If the glass fiber reinforced plastic membrane shell is polished when it is oval or bent, the result is that although the local burr is removed, the overall cylindricality and straightness of the workpiece in the free state are affected, which affects the quality and safety of the finished product, and even the glass fiber on the surface of the glass fiber reinforced plastic membrane shell may be damaged, thereby causing uneven stress on the inner wall of the glass fiber reinforced plastic membrane shell during subsequent use, which may cause safety problems. SUMMARY

[0005] The purpose of the present application is to solve the problems raised in the background art, and a glass fiber reinforced plastic membrane shell burr removing grinder is proposed.

[0006] In order to achieve the above object, the technical scheme adopted by the present application is as follows: A glass fiber reinforced plastic membrane shell burr removing grinding machine, comprising a pipe fitting grinding machine body and a mounting rod, two movable mounting frames are slidably installed on the top of the pipe fitting grinding machine body, an electric push rod is fixedly installed on the side wall of one of the movable mounting frames, a servo motor is fixedly installed on the side wall of the other movable mounting frame, rotating discs are respectively arranged on the output shafts of the electric push rod and the servo motor, fixed cylinders are fixedly connected between the opposite sides of the two rotating discs, two abutting rods are slidably connected in the inside of the mounting rod, an inside supporting roundness mechanism is arranged on the outer wall of the two abutting rods, a connecting frame is fixedly connected to the top of the pipe fitting grinding machine body, and a burr removing module is slidably installed in the inside of the connecting frame, the burr removing module comprises a grinding plate, a driving assembly for driving the grinding plate to rotate, and a translation assembly for driving the burr removing module to reciprocate in the inside of the connecting frame.

[0007] The inside supporting roundness mechanism comprises two fixed rings, a plurality of hinged rods are rotatably connected to the outer walls of the two fixed rings, support plates are respectively rotatably connected to the ends of the plurality of hinged rods away from the fixed rings, the ends of the hinged rods on the same side are fixedly connected to the bottom side of the same support plate, a fixed rod is fixedly connected to the bottom side of the support plate, a connecting ring is fixedly connected to the end of the fixed rod away from the support plate, and a first spring is fixedly connected to the side of the connecting ring facing the fixed rod.

[0008] A straightness maintaining mechanism is arranged in the inside of the fixed cylinder, the straightness maintaining mechanism comprises a first sliding frame, a round rod is fixedly connected to the side wall of the first sliding frame, a plurality of tension springs are fixedly connected to the side wall of the first sliding frame, a second sliding frame is fixedly connected to the ends of the plurality of tension springs away from the first sliding frame, a plurality of guide rods are fixedly connected to the side of the second sliding frame away from the tension springs, sliding blocks are fixedly connected to the ends of the plurality of guide rods away from the second sliding frame, and rubber pull claws are slidably connected in the inside of the sliding blocks.

[0009] Further, the end of one of the abutting rods away from the mounting rod is slidably connected in the inside of the fixed cylinder, an inner groove is formed in the inside of the mounting rod, the end of the first spring away from the connecting ring is fixedly connected to the inner wall of the inner groove, a through groove is formed in the inside of the mounting rod, a gear is rotatably connected to the inner wall of the through groove, and sliding rods are fixedly connected to the ends of the two abutting rods located in the inside of the mounting rod.

[0010] Further, the outer wall of the sliding rod is slidably connected to the inner wall of the through groove, a gear slot is formed in the side wall of the sliding rod, the inner wall of the gear slot is matched and engaged with the inner wall of the gear teeth of the gear, the two fixed rings are respectively fixedly connected to the outer walls of the ends of the corresponding abutting rods, and the fixed rod is slidably connected to the inner wall of the inner groove.

[0011] Further, the inside of the fixed cylinder is provided with a cross groove, the outer wall of the first sliding frame is slidably connected to the inner wall of the cross groove, one end of the rubber pull claw inside the sliding block is fixedly connected with a second spring, and the other end of the second spring away from the rubber pull claw is fixedly connected to the inner wall of the sliding block.

[0012] Further, the inside of the fixed cylinder is provided with a cross groove, the outer wall of the first sliding frame is slidably connected to the inner wall of the cross groove, one end of the rubber pull claw inside the sliding block is fixedly connected with a second spring, and the other end of the second spring away from the rubber pull claw is fixedly connected to the inner wall of the sliding block.

[0013] Further, the outer wall of the fixed cylinder is provided with a sliding groove, and the outer wall of the sliding block is slidably connected to the inner wall of the sliding groove.

[0014] Further, the outer wall of the fixed cylinder is provided with a sliding groove, and the outer wall of the sliding block is slidably connected to the inner wall of the sliding groove.

[0015] Further, the rotating disc located at the output shaft of the electric push rod is rotatably connected to the output shaft of the electric push rod, and the rotating disc located at the output shaft of the servo motor is fixedly connected to the output shaft of the servo motor.

[0016] Compared with the prior art, the above-mentioned scheme has the following beneficial effects:

[0017] 1. By driving the end of the connected articulated rod to displace through two abutting rods, the support plate will be synchronously moved by the fixed rod through the connecting ring, and when the abutting rod moves to the positioning position, the outer wall of the support plate will be extruded at the inner wall of the glass steel film shell, thereby supporting the inner wall, avoiding the pressure injury or stress concentration caused by the point contact of the traditional clamping method. Even in the case of a small amount of ovality or deformation of the cylindrical workpiece, through the synchronous radial diffusion support of the support plates, the workpiece inner wall of the segment can be forced to be corrected and maintained to the ideal cylindrical profile, ensuring the local roundness, and establishing an accurate rotation reference for subsequent burr removal, thereby fundamentally preventing the cylindrical workpiece from being bent during polishing, resulting in a product with uniform diameter but incorrect axis, ensuring that the polishing operation is based on an ideal cylindrical reference with corrected roundness and straightness.

[0018] 2. The tension force applied by the tension spring will exert a pulling force on the second sliding frame. The pulling force drives the slider to slide along the inner wall of the groove through the guide rod. Due to the elasticity of the second spring, the rubber claws are squeezed against the inner wall of the fiberglass membrane shell and are difficult to move. At this time, the tension force of the tension spring on the slider achieves the effect of stretching both ends of the fiberglass membrane shell, so that the middle section of the fiberglass membrane shell is subjected to the outward stretching force from both ends, thereby further reducing the bending of the fiberglass membrane shell. After the internal support is completed, an outward radial pulling force is automatically applied to both ends of the fiberglass membrane shell to form a taut tension state, so as to ensure the inner roundness of the fiberglass membrane shell.

[0019] 3. When several rubber claws are pressed against the inner wall of the fiberglass membrane shell and an outward pulling force is applied, if the pulling force can overcome the friction generated by the pressure of the rubber claws, the slider will slowly slide along the inner wall of the groove and detach from the interior of the fiberglass membrane shell. At this point, it can be determined that the elasticity of the rubber claws is insufficient. Then, the staff needs to replace the rubber claws with ones with greater elasticity. If the friction between the rubber contact surface of the rubber claw and its inner wall is greater than the tension of the tension spring, then a radial outward pulling force can always be applied to the fiberglass membrane shell, forming a tension taut state, improving the cylindrical straightness and cylindricity of the overall appearance, thereby finding the force that the gel coating on the inner wall of the fiberglass membrane shell can withstand, achieving the application of the maximum and safe corrective pulling force, while absolutely protecting the production quality of the fiberglass membrane shell. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure proposed in this invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the pipe grinding machine body proposed in this invention;

[0022] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0023] Figure 4 The present invention proposes Figure 3 Enlarged view of point A;

[0024] Figure 5 The present invention proposes Figure 3 Enlarged view of point B;

[0025] Figure 6 This is a schematic diagram of the internal structure of the fixed cylinder proposed in this invention.

[0026] The labels in the attached diagram are as follows: 1. Pipe grinding machine body; 2. Movable mounting bracket; 3. Electric push rod; 4. Servo motor; 5. Rotary disk; 6. Fixed cylinder; 7. Support rod; 8. Inner support roundness mechanism; 9. Straightness holding mechanism; 10. Mounting rod; 11. Connecting frame; 12. Deburring module; 801. Fixed ring; 802. Hinge rod; 803. Support plate; 804. Fixed rod; 805. Connecting ring; 806. First spring; 807. Inner groove; 808. Through groove; 809. Gear; 810. Slide rod; 811. Tooth groove; 901. Cross groove; 902. First sliding frame; 903. Round rod; 904. Tension spring; 905. Second sliding frame; 906. Guide rod; 907. Slider; 908. Rubber claw; 909. Second spring; 910. Slide groove; 911. Extrusion groove. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] In the description of this invention, it should be understood that the terms "upper," "lower," "top surface," "bottom surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship, order, or relative importance between these entities or operations.

[0029] Example 1, please refer to Figures 1-6 A grinding machine for removing burrs from fiberglass membrane shells includes a pipe grinding machine body 1 and a mounting rod 10. Two movable mounting brackets 2 are slidably mounted on the top of the pipe grinding machine body 1. Rotary disks 5 are provided on opposite sides of the two movable mounting brackets 2, and fixed cylinders 6 are fixedly connected to the rotary disks 5. An electric push rod 3 is fixedly mounted on the side wall of one of the movable mounting brackets 2, and a servo motor 4 is fixedly mounted on the side wall of the other movable mounting bracket 2. The rotary disk 5 located at the electric push rod 3 is rotatably connected to its output shaft, and the rotary disk 5 located at the servo motor 4 is fixedly connected to its output shaft.

[0030] The mounting rod 10 has two through sliding connections with two abutments 7.

[0031] Specifically, since the fiberglass membrane shell is made by introducing resin-impregnated glass fibers into a mold and winding them, which is the mainstream fiber winding molding process, the mold will close up and down or left and right during this process. The resin overflowing along the axial seam line of the closed mold forms burrs that run through the entire length of the cylindrical body. The burrs need to be removed later. Grinding the burrs is mainly for aesthetic purposes, to facilitate subsequent installation, and to prevent sharp edges from scratching the sealing ring or operators.

[0032] When using the grinding machine, the inner part of the cylindrical fiberglass diaphragm shell is first placed on its outer wall through the mounting rod 10. At this time, the mounting rod 10 will slide inside the fixed cylinder 6 through the outer wall of the abutment 7 close to the servo motor 4, thereby maintaining balance. Then, by controlling the two movable mounting brackets 2 to approach each other, the electric push rod 3 and the servo motor 4 will drive the corresponding rotating disk 5 to move synchronously closer. At the same time, the rotating disk 5 will drive the fixed cylinder 6 to move synchronously. When the fixed cylinder 6 connected to the electric push rod 3 moves to the designated position, the position of the fixed cylinder 6 will contact the end of the abutment 7, and the abutment 7 will also slide to the inner wall of the fixed cylinder 6.

[0033] Furthermore, both abutment rods 7 are provided with an inner support roundness mechanism 8 on their outer walls. The inner support roundness mechanism 8 includes four support plates 803 and a synchronous linkage mechanism that drives the four support plates 803 to expand outward when the abutment rods 7 move. A fixing rod 804 is fixedly connected to the bottom side of the support plate 803, and a connecting ring 805 is fixedly connected to the end of the fixing rod 804 away from the support plate 803. A first spring 806 is fixedly connected to the side of the connecting ring 805 facing the fixing rod 804.

[0034] Specifically, during the sliding process, the abutment 7 drives the support plate 803 to move outward through the synchronous linkage mechanism. During this process, the support plate 803 drives the connecting ring 805 to move synchronously through the fixed rod 804, which compresses the first spring 806. The force of the compressed first spring 806 then drives the support plate 803 to reset. After the abutment 7 moves to the positioning position, the outer wall of the support plate 803 will press against the inner wall of the fiberglass membrane shell, thereby supporting the inner wall and avoiding pressure damage or stress concentration that may be caused by point contact. Even if the cylindrical workpiece has slight ellipticity or deformation, the inner wall of the workpiece can be corrected and maintained to the ideal cylindrical profile through the synchronous radial diffusion support of several support plates 803, ensuring its local roundness. This establishes a precise rotation reference for subsequent burr removal and prevents the cylindrical workpiece from being processed into a defective product with a uniform diameter but an incorrect axis due to its own bending during the grinding process, thus ensuring the cylindricity of the finished product.

[0035] Furthermore, the synchronous linkage mechanism includes a fixed ring 801 fixedly connected to the abutment 7, and four hinge rods 802 rotatably connected to the outer wall of the fixed ring 801. The ends of the four hinge rods 802 are respectively rotatably connected to the surfaces of the four support plates 803.

[0036] The mounting rod 10 has an inner groove 807. The end of the first spring 806 away from the connecting ring 805 is fixedly connected to the inner wall of the inner groove 807. The mounting rod 10 has a through groove 808, and the inner wall of the through groove 808 is rotatably connected to a gear 809. The ends of the two abutments 7 located inside the mounting rod 10 are fixedly connected to a slide rod 810. The outer wall of the slide rod 810 is slidably connected to the inner wall of the through groove 808. The side wall of the slide rod 810 has a toothed groove 811, and the inner wall of the toothed groove 811 meshes with the inner wall of the gear teeth of the gear 809. The two fixing rings 801 are fixedly connected to the outer walls of the corresponding abutment ends 7. The fixing rod 804 is slidably connected to the inner wall of the inner groove 807.

[0037] Specifically, when the abutment 7 stops moving due to the resistance of the straightness holding mechanism 9, the abutment 7 will slide along the inside of the mounting rod 10, and at the same time drive the fixing ring 801 to move. Then, during the movement of the fixing ring 801, the ends of several hinge rods 802 connected to it will move synchronously. At the same time, during the movement of the abutment 7, through the meshing state of the slide rod 810 and the gear 809, another abutment 7 will move synchronously, so that the two abutments 7 will simultaneously drive the support plate 803 to support it outward through the connected hinge rods 802.

[0038] Example 2: Based on the above examples, please refer to... Figures 1-6 The fixed cylinder 6 is equipped with a straightness maintaining mechanism 9 inside.

[0039] Furthermore, the straightness holding mechanism 9 includes a first sliding frame 902. A round rod 903 that is pressed and driven by the push rod 7 is fixedly connected to the side wall of the first sliding frame 902. A cross groove 901 for sliding the first sliding frame 902 is opened inside the fixed cylinder 6. A number of tension springs 904 are fixedly connected to the side wall of the first sliding frame 902. The ends of the number of tension springs 904 are fixedly connected to a second sliding frame 905. A number of guide rods 906 are fixedly connected to the surface of the second sliding frame 905. A slider 907 is fixedly connected to the end of each of the guide rods 906. A rubber claw 908 is slidably connected inside the slider 907 through a second spring 909. A groove 910 for sliding the slider 907 is opened on the outer wall of the fixed cylinder 6.

[0040] Specifically, during the process of supporting the inner wall of the cylindrical fiberglass membrane shell and correcting its roundness using the inner support roundness mechanism 8, the inclined end of the rubber claw 908 contacts and squeezes the end of the fiberglass membrane shell. Then, the rubber claw 908, under pressure, slides towards the inner wall of the slider 907. Simultaneously, the second spring 909 is compressed. The rubber claw 908 then enters the interior of the fiberglass membrane shell and is pressed against the inner wall by the force of the compressed second spring 909. The round rod 903 blocks the movement of the abutment rod 7. After the support plate 803 supports the inner wall of the fiberglass membrane shell and corrects its roundness, the round rod 903 is then pressed by the abutment rod 7 and slides towards the cross groove 901. Then, during its movement, the round rod 903 drives the first sliding frame 902 along the cross groove 901. As the inner wall of the groove 901 slides, the tension spring 904 is stretched. The force of the stretched tension spring 904 applies a pulling force to the second sliding frame 905. The pulling force drives the slider 907 to slide along the inner wall of the groove 910 through the guide rod 906. Due to the elasticity of the second spring 909, the rubber claw 908 is pressed against the inner wall of the fiberglass membrane shell and is difficult to move. At this time, the pulling force of the tension spring 904 on the slider 907 achieves the effect of stretching both ends of the fiberglass membrane shell, so that the middle section of the fiberglass membrane shell is subjected to the outward stretching force from both ends, thereby further reducing the bending of the fiberglass membrane shell. After the internal support is completed, an outward radial pulling force is automatically applied to both ends of the fiberglass membrane shell to form a taut tension state, thereby improving the overall axial straightness and roundness of the fiberglass membrane shell and reducing errors.

[0041] Furthermore, to prevent damage to the gel coating on the inner wall of the cylindrical fiberglass membrane shell, when several rubber claws 908 are pressed against the inner wall of the fiberglass membrane shell and an outward pulling force is applied, if the pulling force can overcome the friction generated by the pressing of the rubber claws 908, then the slider 907 will slowly slide along the inner wall of the groove 910. At the same time, the tension spring 904 drives the second sliding frame 905 to slide along the inner wall of the cross groove 901. After that, the rubber claws 908 will disengage from the inside of the fiberglass membrane shell. At this point, it can be determined that the elasticity of the rubber claws 908 is insufficient. Workers need to replace the rubber claw 908 with one that has greater elasticity to apply an outward pulling force while squeezing the inner wall of the fiberglass membrane shell. If the friction between the rubber contact surface of the rubber claw 908 and its inner wall is greater than the tension of the tension spring 904, then a radial outward pulling force can always be maintained on the fiberglass membrane shell, forming a tension taut state. This allows the gel coating on the inner wall of the fiberglass membrane shell to find the force that can be withstood, thus achieving the application of the maximum and safe corrective pulling force. While improving the dimensional accuracy of the cylindrical workpiece, the quality of the inner wall of the workpiece is absolutely protected, achieving high-quality processing.

[0042] Furthermore, a compression groove 911 is provided through the inside of the fixed cylinder 6, and the push rod 7 extends into the compression groove 911 to compress the round rod 903. The end of the round rod 903 away from the first sliding frame 902 is slidably connected to the inner wall of the compression groove 911, and the outer wall of the second sliding frame 905 is slidably connected to the inner wall of the cross groove 901.

[0043] Example 3: Based on the above examples, please refer to... Figures 1-6 A connecting frame 11 is fixedly connected to the top of the pipe grinding machine body 1, and a burr removal module 12 is slidably installed inside the connecting frame 11. The burr removal module 12 includes a grinding plate, a driving component for driving the grinding plate to rotate, and a translation component for driving the burr removal module 12 to reciprocate along the inside of the connecting frame 11.

[0044] Specifically, after completing the internal support and axial tension straightening of the cylindrical workpiece, the workpiece is in a rotational reference state with high roundness and high coaxiality. Then, the output shaft's rotating disk 5 and fixed cylinder 6 are rotated by the drive servo motor 4. Then, the rotation of the abutment rod 7 and mounting rod 10 drives the rotating disk 5 and fixed cylinder 6 on the other side to rotate synchronously, thereby causing the fiberglass membrane shell in the supported state to rotate axially. Then, the burr removal module 12 can be driven to translate along the inside of the connecting frame 11. During the process, the drive component drives the grinding plate to rotate and grind the cylindrical surface of the fiberglass membrane shell. As the fiberglass membrane shell rotates, the burrs on the surface of the fiberglass membrane shell can be quickly and efficiently removed, ensuring that the grinding operation is based on an ideal cylindrical reference with both roundness and straightness corrected. At the same time, the drive translation component drives the grinding plate to remove burrs from the entire surface of the fiberglass membrane shell.

[0045] It should be noted that all the devices in this application are common devices on the market, and can be selected according to the needs of specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.

[0046] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A grinding machine for removing burrs from fiberglass membrane shells, characterized in that: The device includes a pipe grinding machine body (1) and a mounting rod (10). Two movable mounting brackets (2) are slidably mounted on the top of the pipe grinding machine body (1). A rotating disk (5) is provided on the opposite side of the two movable mounting brackets (2), and a fixed cylinder (6) is fixedly connected to the rotating disk (5). The mounting rod (10) has two slidingly connected abutment rods (7) inside. The outer walls of the two abutment rods (7) are provided with an inner support roundness mechanism (8). The inner support roundness mechanism (8) includes four support plates (803) and a synchronous linkage mechanism that drives the four support plates (803) to expand outward when the abutment rods (7) move. The fixed cylinder (6) is provided with a straightness holding mechanism (9). The straightness holding mechanism (9) includes a first sliding frame (902). A round rod (903) that is pressed and driven by the push rod (7) is fixedly connected to the side wall of the first sliding frame (902). A cross groove (901) for sliding of the first sliding frame (902) is opened inside the fixed cylinder (6). A number of tension springs (904) are fixedly connected to the side wall of the first sliding frame (902). The ends of the number of tension springs (904) are fixedly connected to a second sliding frame (905). A number of guide rods (906) are fixedly connected to the surface of the second sliding frame (905). A slider (907) is fixedly connected to the end of each of the guide rods (906). A rubber claw (908) is slidably connected inside the slider (907) through a second spring (909). A groove (910) for sliding of the slider (907) is opened on the outer wall of the fixed cylinder (6). The top of the pipe grinding machine body (1) is fixedly connected to a connecting frame (11), and a burr removal module (12) is slidably installed inside the connecting frame (11).

2. The grinding machine for removing burrs from fiberglass membrane shells according to claim 1, characterized in that, The burr removal module (12) includes a grinding plate, a driving component for rotating the grinding plate, and a translation component for reciprocating the burr removal module (12) along the interior of the connecting frame (11).

3. The grinding machine for removing burrs from fiberglass membrane shells according to claim 1, characterized in that, The synchronous linkage mechanism includes a fixed ring (801) fixedly connected to the abutment (7), and four hinge rods (802) are rotatably connected to the outer wall of the fixed ring (801). The ends of the four hinge rods (802) are rotatably connected to the surfaces of the four support plates (803).

4. The grinding machine for removing burrs from fiberglass membrane shells according to claim 3, characterized in that, A fixing rod (804) is fixedly connected to the bottom side of the support plate (803), and a connecting ring (805) is fixedly connected to the end of the fixing rod (804) away from the support plate (803). A first spring (806) is fixedly connected to the side of the connecting ring (805) facing the fixing rod (804).

5. A grinding machine for removing burrs from fiberglass membrane shells according to claim 4, characterized in that, The mounting rod (10) has an inner groove (807) inside. The end of the first spring (806) away from the connecting ring (805) is fixedly connected to the inner wall of the inner groove (807). The mounting rod (10) has a through groove (808) inside. The inner wall of the through groove (808) is rotatably connected to a gear (809). The ends of the two abutments (7) located inside the mounting rod (10) are fixedly connected to a slide rod (810).

6. A grinding machine for removing burrs from fiberglass membrane shells according to claim 5, characterized in that, The outer wall of the slide rod (810) is slidably connected to the inner wall of the through groove (808). The side wall of the slide rod (810) is provided with a toothed groove (811), and the inner wall of the toothed groove (811) is matched and meshed with the inner wall of the gear tooth (809). The two fixing rings (801) are respectively fixedly connected to the outer wall of the end of the corresponding abutment (7). The fixing rod (804) is slidably connected through the inner wall of the inner groove (807).

7. A grinding machine for removing burrs from fiberglass membrane shells according to claim 6, characterized in that, The fixed cylinder (6) has a through-hole extrusion groove (911) inside. The push rod (7) extends into the extrusion groove (911) to extrude the round rod (903). The end of the round rod (903) away from the first sliding frame (902) is slidably connected to the inner wall of the extrusion groove (911). The outer wall of the second sliding frame (905) is slidably connected to the inner wall of the cross groove (901).

8. A grinding machine for removing burrs from fiberglass membrane shells according to any one of claims 2-7, characterized in that, An electric push rod (3) is fixedly installed on the side wall of one of the movable mounting brackets (2), and a servo motor (4) is fixedly installed on the side wall of the other movable mounting bracket (2). The rotating disk (5) located on the electric push rod (3) is rotatably connected to its output shaft, and the rotating disk (5) located at the servo motor (4) is fixedly connected to its output shaft.

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