Grinding and polishing equipment for glass fiber reinforced plastic part for railway vehicle

Abstract

The invention relates to the technical field of glass fiber reinforced plastic part machining, and discloses grinding and polishing equipment for glass fiber reinforced plastic parts for railway vehicles, which comprises a conveying belt and further comprises two mounting frames located on two sides of the conveying belt, first circular shafts slidably connected in the mounting frames, and two first circular rollers located between two stress sliding parts. One end of the bidirectional stress part is located in the output mounting shell, the first round roller is located above the polishing abrasive belt, and when the first round roller moves downwards, the stress sliding part is driven by the polishing abrasive belt to move horizontally. The polishing abrasive belt is driven by the first round roller to move so that the polishing abrasive belt can be automatically and completely attached to the surface of a machined part, an operator does not need to manually adjust the polishing position and angle any more, manual labor and skill requirements are reduced, the polishing abrasive belt is dragged through the first round roller, the adaptability of the polishing abrasive belt is high, and the polishing efficiency is improved. And the device can adapt to a plurality of membrane shells with different shapes and sizes, and the production flexibility is improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass fiber reinforced plastic parts processing, and in particular to a grinding and polishing device for glass fiber reinforced plastic parts for rail vehicles. Background Art

[0002] FRP is a composite material, which uses glass fiber and its products such as glass cloth, tape, felt, yarn, etc. as reinforcing materials and synthetic resin as matrix material. Because its strength is equivalent to that of steel and it contains glass components, it also has the color, shape, corrosion resistance, electrical insulation, heat insulation and other properties of glass.

[0003] However, in the prior art, since the grinding equipment cannot be adjusted according to the curvature shape of the membrane shell, this directly leads to low efficiency and difficulty in ensuring quality during the grinding process of the FRP membrane shell. The traditional grinding method often relies on the experience and technical proficiency of the operator, which not only makes the grinding quality uneven, but also places extremely high technical requirements on the operator. In this case, even experienced operators find it difficult to ensure that each grinding can achieve the ideal flatness and finish, thus affecting the appearance and performance of the final product. During the grinding process, the FRP membrane shell will generate a large amount of dust. Long-term inhalation of this dust may lead to the occurrence of occupational diseases such as pneumoconiosis, causing great damage to the health of the operator. Therefore, some manufacturers will use automated robotic arms for grinding. Although this automated machine The robotic arm has improved the automation level of grinding to a certain extent and ensured a certain grinding quality. However, for the FRP membrane shell used on rail vehicles, due to its usually large area and length, the grinding efficiency of the automated robotic arm is still low. In addition, the equipment cost of the automated robotic arm is relatively high. Secondly, a conventional belt grinder is used. However, although the conventional belt grinder has certain advantages in improving grinding efficiency, it still cannot automatically adapt to the shape changes of the membrane shell. The operator is required to constantly adjust the grinding position and angle to adapt to the curvature and shape of the membrane shell, which not only increases the difficulty of operation, but also greatly increases the labor intensity. In addition, the manual intervention method is not only inefficient, but also difficult to ensure the consistency and accuracy of grinding. Uneven grinding will still occur, affecting the quality of the final product. Summary of the invention

[0004] The purpose of the present invention is to provide a grinding and polishing device for glass fiber reinforced plastic parts for rail vehicles, so as to solve the problem that the surface of the glass fiber reinforced plastic parts cannot be fully ground.

[0005] The technical solution of the present invention is: a grinding and polishing device for glass fiber reinforced plastic parts for rail vehicles, including a conveyor belt, and also including two mounting frames arranged on both sides of the conveyor belt, a first round shaft slidably connected to the inside of the mounting frame, two first round rollers rotatably connected to the outside of the first round shaft, a driver arranged outside the mounting frame, a linkage block sleeved on the outside of the driver, a force-bearing sliding member slidably connected to the outside of the mounting frame, a two-way force-bearing member rotatably connected to the bottom of one of the mounting frames, an output mounting shell and a driving motor arranged outside the mounting frame, a second round shaft fixedly connected to the bottom of another mounting frame, and two first round rollers rotatably connected to the outside of the second round shaft. Two round rollers, the two mounting frames are symmetrical about the central axis of the conveyor belt, the bidirectional force-bearing member and the second round roller are symmetrical about the central axis of the conveyor belt, a polishing belt is wound around the outside of the force-bearing sliding member, the bidirectional force-bearing member and the second round roller, two polishing belts are provided and are symmetrical about the central axis of the force-bearing sliding member, one end of the first round shaft is located inside the linkage block, the two first round rollers are located between the two force-bearing sliding members, one end of the bidirectional force-bearing member is located inside the output mounting shell, when the first round roller is located at the top of the mounting frame, the first round roller is located above the polishing belt, and when the first round roller moves downward, the force-bearing sliding member is driven to move horizontally through the polishing belt.

[0006] Furthermore, the mounting frame includes a base frame arranged outside the conveyor belt, provided with two supporting vertical rods fixedly connected to the top of the base frame, and a round rod fixedly connected to one side of the supporting vertical rods, the two ends of the force-bearing sliding member are located outside the round rod, and the first round axis is located inside the two supporting vertical rods.

[0007] Furthermore, the force-bearing sliding member includes an external double-axis frame with two ends slidably connected to the round rod, each of which is provided with two support rollers and a limit roller that are rotatably connected to the inside of the double-axis frame, and a round rod connected between the supporting vertical rod and the double-axis frame, the round rod is located outside the supporting vertical rod, the support roller is located above the limit roller, and the support roller and the limit roller are equal in length to the first round roller and one side is located in the same plane.

[0008] Furthermore, a guide groove is provided on one of the support vertical rods, the linkage block is located on one side of the support vertical rod, a slide groove opening is provided on the linkage block, one end of the first round shaft passes through the guide groove and the slide groove opening, and when the first round roller is located at the top of the guide groove, the first round roller is located above the polishing belt.

[0009] Furthermore, the driver includes an output motor fixedly connected to the outside of the base frame, a ball screw connected to the output end of the output motor, the linkage block is sleeved on the linkage block outside the ball screw, and the output end of the drive motor is located inside the output mounting shell.

[0010] Furthermore, the guide groove is divided into a vertical section and a slope section, the slope section is located below the vertical section, and the top end to the bottom end of the slope section is inclined toward the direction close to the conveyor belt.

[0011] Furthermore, a workpiece is placed on the top of the conveyor belt, and when the first round roller is located at the bottom end of the slope section, the first round roller is located below the workpiece.

[0012] Furthermore, the bidirectional force-bearing member includes an inner shaft rotatably connected to the inside of the bottom end of the base frame, a first transmission roller fixedly connected to the outside of the inner shaft, and a transmission shaft roller rotatably connected to the outside of the inner shaft, the transmission shaft roller is located on one side of the first transmission roller, and the transmission shaft roller is a second transmission roller close to the first transmission roller.

[0013] Furthermore, the first round roller and the second round roller are of equal length and one side is located in the same plane, the second transmission roller, the first round roller and the first transmission roller are of equal length, and one end of the transmission shaft roller and the inner shaft are both located inside the output mounting shell.

[0014] Furthermore, the output mounting shell is internally rotatably connected with a first bevel gear, a second bevel gear and a third bevel gear, the first bevel gear is fixedly connected to the transmission shaft roller, the second bevel gear is fixedly connected to the inner shaft, the third bevel gear is fixedly connected to the output end of the drive motor, and the third bevel gear is meshed between the first bevel gear and the second bevel gear.

[0015] Beneficial effects of the present invention: The technology of driving the polishing belt to move by the first circular roller so that the polishing belt can automatically and completely fit the surface of the workpiece improves the accuracy and efficiency of polishing with the polishing belt. Since the polishing belt can automatically and tightly fit the complex shape of the membrane shell, there is no need for frequent manual adjustment, thereby ensuring the polishing quality and consistency of each workpiece, reducing quality problems caused by improper human operation, increasing production speed, reducing labor intensity and operation complexity, and operators no longer need to manually adjust the grinding position and angle, reducing physical labor and skill requirements. The first circular roller is used to pull the polishing belt, making it highly adaptable and able to adapt to multiple membrane shells of different shapes and sizes, thereby improving production flexibility.

[0016] By setting two polishing belts, and different polishing belts use the first transmission roller and the transmission shaft roller to achieve opposite grinding directions, not only can the grinding uniformity be improved and the grinding effect be enhanced, but also the grinding vibration can be effectively reduced, the life of the polishing belt can be extended, the production efficiency can be improved, the operation intervention can be reduced, the surface quality can be improved, and the adaptability is strong. The two polishing belts compensate for the grinding marks of each other, making the grinding more uniform, reducing the lines or unevenness of the workpiece that may be caused by single-direction grinding, and at the same time improving the grinding effect, and using two-way grinding to more effectively remove materials.

[0017] The driver drives the linkage block to move up and down, thereby controlling the first circular axis. The first circular axis is also affected by the path of the guide slot, so that the driver moves up and down, and the polishing belt can be automatically controlled to fit the surface of the workpiece, which greatly improves production efficiency. At the same time, it can ensure the consistency and accuracy of grinding, and reduce possible failure points of multiple drive units, thereby reducing maintenance costs and downtime, lowering the threshold of use, and can be quickly mastered. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a three-dimensional structure of the present invention from a first viewing angle; Figure 2 It is a structural schematic diagram of the force-bearing sliding member of the present invention; Figure 3 It is a structural schematic diagram of the first round roller of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 It is a structural schematic diagram of the conveyor belt of the present invention; Figure 6 For the present invention Figure 5 Sectional view at the middle BB; Figure 7 This is a state diagram of the polishing belt of the present invention being attached to the workpiece; Figure 8 It is a structural schematic diagram of the bidirectional force-bearing member of the present invention.

[0019] In the figure: 1. Conveyor belt; 2. Mounting frame; 21. Base frame; 22. Support vertical rod; 221. Guide groove; 2211. Vertical section; 2212. Slope section; 23. Round rod; 3. First round shaft; 4. First round roller; 5. Driver; 51. Output motor; 52. Ball screw; 6. Linkage block; 61. Slide groove; 7. Force-bearing sliding member; 71. Double-axis frame; 72. Support roller; 73. Limit roller; 74. Strong spring; 8. Bidirectional force-bearing member; 81. Inner shaft; 82. First transmission roller; 83. Transmission shaft roller; 831. Second transmission roller; 9. Output mounting shell; 10. Driving motor; 11. Second round shaft; 12. Second round roller; 13. Polishing belt; 14. Processing part; 15. First bevel gear; 16. Second bevel gear; 17. Third bevel gear. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] Reference Figure 1-8, as an embodiment of the present invention, a grinding and polishing device for glass fiber reinforced plastic parts for rail vehicles is provided, including a conveyor belt 1, and also including two mounting frames 2 arranged on both sides of the conveyor belt 1, a first circular shaft 3 slidably connected to the inside of the mounting frame 2, two first circular rollers 4 rotatably connected to the outside of the first circular shaft 3, a driver 5 arranged on the outside of the mounting frame 2, a linkage block 6 sleeved on the outside of the driver 5, a force-bearing sliding member 7 slidably connected to the outside of the mounting frame 2, a two-way force-bearing member 8 rotatably connected to the bottom of one of the mounting frames 2, an output mounting shell 9 and a driving motor 10 arranged on the outside of the mounting frame 2, a second circular shaft 11 fixedly connected to the bottom of the other mounting frame 2, and two second circular rollers 12 rotatably connected to the outside of the second circular shaft 11, the two mounting frames 2 are symmetrical about the central axis of the conveyor belt 1, and the two-way force-bearing members 8 and the second round roller 12 are symmetrical about the central axis of the conveyor belt 1, and a polishing belt 13 is wound around the outside of the force-bearing sliding member 7, the bidirectional force-bearing member 8 and the second round roller 12. Two polishing belts 13 are provided and are symmetrical about the central axis of the force-bearing sliding member 7. One end of the first circular shaft 3 is located inside the linkage block 6, and the two first round rollers 4 are located between the two force-bearing sliding members 7. One end of the bidirectional force-bearing member 8 is located inside the output mounting shell 9. When the first round roller 4 is located at the top of the mounting frame 2, the first round roller 4 is located above the polishing belt 13. When the first round roller 4 moves downward, the force-bearing sliding member 7 is driven horizontally by the polishing belt 13. A processing part 14 is placed on the top of the conveyor belt 1. Usually, the two ends of the processing part 14 are arc-shaped. A limiting device can be fixedly placed on one side of the conveyor belt 1, and the limiting device is a conventional cylinder plus a rotating roller, which can be removed and moved at will.

[0022] Among them, since there are two mounting frames 2, the number and positions of the first circular shaft 3, the driver 5, the linkage block 6 and the force-bearing sliding member 7 connected thereto are also one-to-one corresponding. Therefore, there are two first circular shafts 3, and the corresponding number of first circular rollers 4 is four, and the bidirectional force-bearing member 8 and the second circular roller 12 are symmetrical about the central axis of the conveyor belt 1, and the bidirectional force-bearing member 8 and the second circular roller 12 are both located below the force-bearing sliding member 7, and the bidirectional force-bearing member 8, the second circular roller 12 and the two force-bearing sliding members 7 form a symmetrical trapezoid, and the polishing belt 13 is wound around the outside of the formed trapezoid, wherein the two first circular rollers 4 outside the single first circular shaft 3 take the central axis of the force-bearing sliding member 7 as the axis of symmetry, then the polishing belt 13 and the first circular roller 4 are symmetrical about the central axis of the force-bearing sliding member 7, and the polishing belt 13 is located below the corresponding first circular roller 4, thereby ensuring that the first circular roller 4 can accurately pull the polishing belt 13, and is combined into two groups of grinding members to grind and polish the workpiece 14 from two directions.

[0023] Reference Figure 1-3The mounting frame 2 includes a base frame 21 arranged outside the conveyor belt 1, two supporting vertical rods 22 fixedly connected to the top of the base frame 21, and a round rod 23 fixedly connected to one side of the supporting vertical rod 22, the two ends of the force-bearing sliding member 7 are located outside the round rod 23, the first circular axis 3 is located inside the two supporting vertical rods 22, and the base frame 21 is a bottom supporting frame.

[0024] Reference Figure 1-7 The force-bearing sliding member 7 includes an external double-axis frame 71 whose two ends are slidably connected to the round rod 23, and is provided with two supporting rollers 72 and a limiting roller 73 that are rotatably connected to the inside of the double-axis frame 71, and a round rod 23 connected between the supporting vertical rod 22 and the double-axis frame 71. The round rod 23 is located outside the supporting vertical rod 22, and the supporting roller 72 is located above the limiting roller 73. The limiting roller 73 is used to limit the polishing belt 13 to ensure that the polishing belt 13 will not derail when being pulled. The supporting roller 72 and the limiting roller 73 are equal in length to the first round roller 4 and one side is located in the same plane, so that the three can cooperate with the polishing belt 13 at the same time to form a stable support from the inside of the polishing belt 13.

[0025] Specifically, when the polishing belt 13 is pulled by the first round roller 4, the polishing belt 13 will contact the surface of the workpiece 14, and the polishing belt 13 will fit the workpiece 14 according to the shape of the surface. At this time, if the length of the surface of the workpiece 14 is longer, the polishing belt 13 will fit more with the workpiece 14, and the position where the first round shaft 3 drives the first round roller 4 to move down is always unique. Then, when the polishing belt 13 fits more with the workpiece 14, the distance between the support roller 72 and the first round roller 4 is closer, and the double-axis frame 71 compresses the strong spring 74 more. If the length of the surface of the workpiece 14 is shorter, the opposite is true. In addition, the straight length at both ends of the workpiece 14 cannot be greater than the spacing between the two first round rollers 4, so as to avoid the polishing belt 13 from being stuck due to insufficient length. When the first round roller 4 moves back without pulling the polishing belt 13, the rebound force of the strong spring 74 can be used to make the support roller 72 move back, realize automatic sliding fit and automatic resetting, and ensure the quality of the polished products and production efficiency.

[0026] The length of the surface of the workpiece 14 represents the arc length plus the straight line length, not the straight line length at both ends, similar to the circumference of a circle, not the diameter length, and the two polishing belts 13 and the two first round rollers 4 are symmetrical about the central axis of the double-axis frame 71.

[0027] In addition, after the polishing belt 13 is completely in contact with the workpiece 14, the double-axis frame 71 can be locked using a conventional screw structure to prevent the strong spring 74 from producing elastic force changes and causing equipment vibration, thereby further ensuring the polishing effect and extending the life of the equipment.

[0028] Reference Figure 2-5A guide groove 221 is provided on one of the support vertical rods 22, and a linkage block 6 is located on one side of the support vertical rod 22. A slide groove opening 61 is provided on the linkage block 6. One end of the first circular shaft 3 passes through the guide groove 221 and the slide groove opening 61. When the first circular roller 4 is located at the top of the guide groove 221, the first circular roller 4 is located above the polishing belt 13. At this time, the guide groove 221 and the slide groove opening 61 both restrict the first circular shaft 3. When the linkage block 6 moves downward, the first circular shaft 3 will be driven downward by the linkage block 6, and when the first circular shaft 3 moves downward, it can only move along the path of the guide groove 221.

[0029] Reference Figure 2-6 The driver 5 includes an output motor 51 fixedly connected to the outside of the base frame 21, a ball screw 52 connected to the output end of the output motor 51, a linkage block 6 sleeved on the linkage block 6 outside the ball screw 52, ​​and the output end of the drive motor 10 is located inside the output mounting shell 9, and the drive motor 10 is used to drive the structure installed inside the output mounting shell 9.

[0030] Reference Figure 2-6 The guide groove 221 is divided into a vertical section 2211 and a slope section 2212. The slope section 2212 is located below the vertical section 2211. The top to the bottom of the slope section 2212 are inclined toward the direction close to the conveyor belt 1. When the first round roller 4 is located at the bottom of the slope section 2212, the first round roller 4 is located below the workpiece 14. At this time, the first round roller 4 also pulls the polishing belt 13 down to the bottom of the workpiece 14. At the same time, the slope section 2212 of the guide groove 221 is used to make the first round roller 4 and the polishing belt 13 move toward the central axis of the workpiece 14, so that the polishing belt 13 can completely wrap both sides of the workpiece 14, further ensuring that the polishing belt 13 is completely in contact with the surface of the workpiece 14.

[0031] Specifically, when the first circular shaft 3 enters the slope section 2212 of the guide groove 221, the first circular shaft 3 is affected by the slope section 2212, and then the first circular shaft 3 will slide inside the slide groove mouth 61, and the first circular shaft 3 is always located inside the slide groove mouth 61, ensuring that the linkage block 6 can stably drive the first circular shaft 3.

[0032] Reference Figure 1-8The bidirectional force-bearing member 8 includes an inner shaft 81 rotatably connected to the inside of the bottom end of the base frame 21, a first transmission roller 82 fixedly connected to the outside of the inner shaft 81, and a transmission shaft roller 83 rotatably connected to the outside of the inner shaft 81, the transmission shaft roller 83 is located on one side of the first transmission roller 82, the transmission shaft roller 83 is close to the part of the first transmission roller 82, and the second transmission roller 831 is concentric with the first transmission roller 82 and has the same size and shape, the second transmission roller 831 and the first transmission roller 82 form a group of structures, which are symmetrical with the second round roller 12 and are the bottom of the trapezoidal structure, and the four first round rollers 4 are the top of the trapezoidal structure, thereby providing sufficient support for the two polishing belts 13.

[0033] Reference Figure 1-8 The first round roller 4 and the second round roller 12 are of equal length and one side is located in the same plane, one side of the second transmission roller 831 and the first transmission roller 82 is respectively located in the same plane with the corresponding side of the first round roller 4, the second transmission roller 831, the first round roller 4 and the first transmission roller 82 are of equal length, one end of the transmission shaft roller 83 and the inner shaft 81 are both located inside the output mounting shell 9, and can be driven by the drive motor 10.

[0034] The output mounting shell 9 is internally rotatably connected with a first bevel gear 15, a second bevel gear 16 and a third bevel gear 17. The first bevel gear 15 is fixedly connected to the transmission shaft roller 83, the second bevel gear 16 is fixedly connected to the inner shaft 81, and the third bevel gear 17 is fixedly connected to the output end of the drive motor 10. The third bevel gear 17 is meshed between the first bevel gear 15 and the second bevel gear 16. The third bevel gear 17 is utilized to drive the first bevel gear 15 and the second bevel gear 16 to rotate. The first bevel gear 15 and the second bevel gear 16 rotate in opposite directions, so that the inner shaft 81 and the transmission shaft roller 83 rotate in opposite directions. Then, the two polishing belts 13 also grind the workpiece 14 in opposite directions. The two polishing belts 13 in opposite directions can balance the vibration during grinding, improve grinding stability, reduce grinding cycles, and improve overall production efficiency. In addition, bidirectional grinding helps to eliminate the directional texture that may be left by unidirectional grinding, so that the workpiece 14 obtains a smoother surface quality.

[0035] The working principle of the present invention is as follows: the workpiece 14 is placed on the top of the conveyor belt 1, and the upper position of the workpiece 14 is limited by the limiting device. One end of the workpiece 14 is conveyed to the bottom of the polishing belt 13 through the conveyor belt 1. At this time, the output motor 51 is driven to rotate by the ball screw 52, ​​thereby driving the linkage block 6 to move downward. Since one end of the first circular shaft 3 is located inside the slide groove mouth 61, and the first circular shaft 3 is restricted by the guide groove 221, the linkage block 6 can drive the first circular shaft 3 to move downward synchronously. The first circular shaft 3 will drive the two first circular rollers 4 to move downward synchronously. After moving downward, the first circular roller 4 will contact the surface of the polishing belt 13. As the first circular shaft 3 drives the first circular roller 4 to move downward, the first circular roller 4 will pull the polishing belt 13. , causing the contact point between the polishing belt 13 and the first round roller 4 to move downward, so that the polishing belt 13 pulls the support rollers 72 on both sides. Since the double-axis frame 71 is guided and restricted by the round rod 23, the support rollers 72 drive the double-axis frame 71 to move in the direction close to the conveyor belt 1, and the double-axis frame 71 therefore drives the limiting rollers 73 to slide synchronously on the outside of the round rod 23. At the same time, the double-axis frame 71 will compress the strong spring 74 when moving, and when the inner surface of the polishing belt 13 contacts the surface of the workpiece 14, the polishing belt 13 will be blocked by the workpiece 14, and the polishing belt 13 can then adaptively fit the surface of the workpiece 14. At this time, the first round shaft 3 will continue to drive the first round roller 4 to move downward, The first circular shaft 3 is pulled to the bottom of the workpiece 14, and when the first circular shaft 3 reaches the slope section 2212 of the guide groove 221, the first circular shaft 3 is pulled downward by the linkage block 6, and the first circular shaft 3 is also affected by the slope section 2212, and then the first circular shaft 3 moves along the path of the slope section 2212, that is, the first circular shaft 3 moves downward and also tilts toward the direction close to the conveyor belt 1, then the first circular shaft 3 will slide inside the slide groove mouth 61, and since the first circular roller 4 moves synchronously with the first circular shaft 3, the first circular roller 4 continues to pull the polishing belt 13, and the contact point between the two moves toward the direction close to the central axis of the workpiece 14, so that the polishing belt 13 is fitted with the arc surfaces on both sides of the workpiece 14, and when the first circular shaft 3 moves to the slope section 2212 At the end of the slope section 2212, the output motor 51 stops, the first round shaft 3 and the first round roller 4 also stop moving, and the compression degree of the double-axis frame 71 on the strong spring 74 changes adaptively according to the surface length of the workpiece 14, that is, the longer the surface length of the workpiece 14, the more the double-axis frame 71 compresses the strong spring 74, and conversely, the shorter the surface length of the workpiece 14, the less the double-axis frame 71 compresses the strong spring 74. At this time, the third bevel gear 17 is driven by the drive motor 10 to rotate the third bevel gear 17, and the first bevel gear 15 and the second bevel gear 16 are transmitted by the third bevel gear 17, and the first bevel gear 15 drives the transmission shaft roller 83 to rotate, and the second bevel gear 16 drives the inner shaft 81 and the first transmission roller 82 to rotate.Then the first transmission roller 82 and the transmission shaft roller 83 can rotate in the opposite direction. At this time, the first transmission roller 82 and the transmission shaft roller 83 can drive the corresponding polishing belt 13 to rotate, so that the two polishing belts 13 grind and polish the surface of the workpiece 14. At the same time, the conveyor belt 1 is used to drive the workpiece 14 to move, so that the two polishing belts 13 can fully grind the surface of the workpiece 14. After completion, the output motor 51 and the ball screw 52 are used to drive the first round shaft 3 to move up, and the first round shaft 3 drives the first round roller 4 to reset. At this time, the strong spring 74 rebounds, so that the double shaft frame 71, the support roller 72 and the limit roller 73 move back synchronously, and then the polishing belt 13 is no longer in contact with the workpiece 14, and other workpieces 14 can be placed later.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A grinding and polishing device for glass fiber reinforced plastic parts for rail vehicles, comprising a conveyor belt (1), characterized in that: The conveyor belt (1) further comprises two mounting frames (2) provided and located on both sides of the conveyor belt (1), a first circular shaft (3) slidably connected to the inside of the mounting frame (2), two first circular rollers (4) provided and rotatably connected to the outside of the first circular shaft (3), a driver (5) provided outside the mounting frame (2), a linkage block (6) sleeved on the outside of the driver (5), a force-bearing sliding member (7) slidably connected to the outside of the mounting frame (2), a bidirectional force-bearing member (8) rotatably connected to the bottom of one of the mounting frames (2), an output mounting shell (9) and a driving motor (10) provided outside the mounting frame (2), a second circular shaft (11) fixedly connected to the bottom of the other mounting frame (2), and two second circular rollers (12) provided and rotatably connected to the outside of the second circular shaft (11), and the two mounting frames (2) are connected with respect to the conveyor belt (1). The central axis is symmetrical, the bidirectional force-bearing member (8) and the second round roller (12) are symmetrical about the central axis of the conveyor belt (1), a polishing belt (13) is wound around the outside of the force-bearing sliding member (7), the bidirectional force-bearing member (8) and the second round roller (12), two polishing belts (13) are provided and are symmetrical about the central axis of the force-bearing sliding member (7), one end of the first round shaft (3) is located inside the linkage block (6), the two first round rollers (4) are both located between the two force-bearing sliding members (7), one end of the bidirectional force-bearing member (8) is located inside the output mounting shell (9), when the first round roller (4) is located at the top end of the mounting frame (2), the first round roller (4) is located above the polishing belt (13), and when the first round roller (4) moves downward, the force-bearing sliding member (7) is driven to move horizontally through the polishing belt (13).

2. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 1, characterized in that: The mounting frame (2) comprises a base frame (21) arranged outside the conveyor belt (1), two supporting vertical rods (22) fixedly connected to the top of the base frame (21), and a round rod (23) fixedly connected to one side of the supporting vertical rod (22), the two ends of the force-bearing sliding member (7) are located outside the round rod (23), and the first round shaft (3) is located inside the two supporting vertical rods (22).

3. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 2, characterized in that: The force-bearing sliding member (7) comprises an external double-axis frame (71) whose two ends are slidably connected to the round rod (23), each of which is provided with two support rollers (72) and a limit roller (73) which are rotatably connected to the inside of the double-axis frame (71), and a round rod (23) connected between the supporting vertical rod (22) and the double-axis frame (71), the round rod (23) being located outside the supporting vertical rod (22), the support roller (72) being located above the limit roller (73), and the support roller (72) and the limit roller (73) being equal in length to the first round roller (4) and one side of which is located in the same plane.

4. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 2, characterized in that: A guide slot (221) is formed on one of the support vertical rods (22), the linkage block (6) is located on one side of the support vertical rod (22), a slide slot opening (61) is formed on the linkage block (6), one end of the first circular shaft (3) passes through the guide slot (221) and the slide slot opening (61), and when the first circular roller (4) is located at the top end of the guide slot (221), the first circular roller (4) is located above the polishing belt (13).

5. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 4, characterized in that: The driver (5) comprises an output motor (51) fixedly connected to the outside of the base frame (21), a ball screw (52) connected to the output end of the output motor (51), the linkage block (6) sleeved on the linkage block (6) outside the ball screw (52), and the output end of the drive motor (10) is located inside the output mounting shell (9).

6. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 5, characterized in that: The guide groove (221) is divided into a vertical section (2211) and a slope section (2212), wherein the slope section (2212) is located below the vertical section (2211), and the top end to the bottom end of the slope section (2212) are inclined in a direction close to the conveyor belt (1).

7. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 6, characterized in that: A workpiece (14) is placed on the top of the conveyor belt (1), and when the first round roller (4) is located at the bottom end of the slope section (2212), the first round roller (4) is located below the workpiece (14).

8. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 5, characterized in that: The bidirectional force-bearing member (8) comprises an inner shaft (81) rotatably connected to the inside of the bottom end of the base frame (21), a first transmission roller (82) fixedly connected to the outside of the inner shaft (81), and a transmission shaft roller (83) rotatably connected to the outside of the inner shaft (81), wherein the transmission shaft roller (83) is located on one side of the first transmission roller (82), and a second transmission roller (831) is located at a portion of the transmission shaft roller (83) close to the first transmission roller (82).

9. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 8, characterized in that: The first round roller (4) and the second round roller (12) are of equal length and one side of the rollers is located in the same plane; the second transmission roller (831), the first round roller (4) and the first transmission roller (82) are of equal length; and one end of the transmission shaft roller (83) and the inner shaft (81) are both located inside the output mounting shell (9).

10. The grinding and polishing equipment for glass fiber reinforced plastic parts for rail vehicles according to claim 9, characterized in that: The output mounting housing (9) is internally rotatably connected with a first bevel gear (15), a second bevel gear (16) and a third bevel gear (17); the first bevel gear (15) is fixedly connected to the transmission shaft roller (83); the second bevel gear (16) is fixedly connected to the inner shaft (81); the third bevel gear (17) is fixedly connected to the output end of the drive motor (10); and the third bevel gear (17) is meshed between the first bevel gear (15) and the second bevel gear (16).

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