Oilstone follow-up pressing mechanism for brake valve grinding machine

Abstract

The utility model relates to the technical field of oilstone pressing, in particular to an oilstone follow-up pressing mechanism for a brake valve grinding miller, which comprises a mounting table, a linear electric sliding table, a pull rod and an oilstone, the linear electric sliding table is arranged on the mounting table, the moving end of the linear electric sliding table is connected with one end of the pull rod, and the other end of the pull rod is connected with one end of the oilstone. The oilstone is driven by the linear electric sliding table to do linear reciprocating motion; the stone pressing frame is arranged on the mounting table, the stone pressing lead screw is rotationally arranged on the stone pressing frame, the stone pressing motor is arranged on the stone pressing frame and is in transmission connection with one end of the stone pressing lead screw, the stone pressing sliding seat is arranged on the stone pressing lead screw, the stone pressing connecting plate is fixed to the stone pressing sliding seat, and one side of the stone pressing rod is fixed to the stone pressing connecting plate. And the stone pressing rollers are arranged at the inner ends of the stone pressing rods. The stone pressing rod and the oilstone can do linear reciprocating motion synchronously, it is guaranteed that the stone pressing rod abuts against the middle of the oilstone, and the oilstone is evenly stressed.

Description

An oilstone follow-up clamping mechanism for a brake valve grinding machine Technical Field

[0001] This utility model relates to the field of oilstone pressing technology, specifically to an oilstone follow-up pressing mechanism for a brake valve grinding machine. Background Technology

[0002] Brake valves are the core components of various vehicle braking systems. The quality of brake valves directly affects the vehicle's braking performance and is related to the vehicle's safe operation.

[0003] In the grinding operation of the brake valve slide seat, a special oilstone is used for grinding. A linear slide table is used to pull the oilstone to move back and forth in a straight line on the grinding surface of the slide seat, thereby achieving the purpose of grinding the grinding surface. In order to ensure the grinding force between the oilstone and the grinding surface of the slide seat, a clamping mechanism is usually used to press the back of the oilstone.

[0004] For example, in the publication document CN106181742B entitled "A Midpoint Following Grinding Mechanism for a Grinding Machine," it is stated that "when the pull rod mechanism pulls the oilstone, the transmission mechanism can drive the pressure rod to follow the oilstone in reciprocating motion. The transmission mechanism makes the distance the pressure rod moves relative to the pressure point of the oilstone half the distance the oilstone moves." That is, the pressure rod and the oilstone move together. However, when the pressure rod is driven to make linear reciprocating motion through this transmission mechanism, it will cause severe vibration. After the oilstone is vibrated, its stability in linear reciprocating motion decreases significantly, which seriously affects the grinding quality. Summary of the Invention

[0005] To address the technical problem of severe vibrations caused by the linear reciprocating motion of the pressure rod, which leads to unstable movement of the oilstone, this utility model provides an oilstone follow-up clamping mechanism for a brake valve grinding machine. The pressure rod can move linearly and reciprocally synchronously with the oilstone, ensuring smooth movement without vibration. This guarantees that the pressure rod is pressed firmly against the center of the oilstone, resulting in uniform force on the oilstone and improved grinding quality. Furthermore, this design has a simple structure, facilitating production, processing, and assembly.

[0006] The technical solution adopted by this utility model is to provide an oilstone follow-up pressing mechanism for a brake valve grinding machine, including a mounting platform, a linear electric slide table set on the mounting platform, a pull rod and an oilstone. The moving end of the linear electric slide table is connected to one end of the pull rod, and the other end of the pull rod is connected to one end of the oilstone. The oilstone performs linear reciprocating motion under the drive of the linear electric slide table. It also includes a pressing stone frame set on the mounting platform, a pressing stone screw rotatably set on the pressing stone frame, a pressing stone motor set on the pressing stone frame and drivenly connected to one end of the pressing stone screw, a pressing stone slide on the pressing stone screw, a pressing stone connecting plate fixed on the pressing stone slide, a pressing stone rod fixed to the pressing stone connecting plate on one side, and a pressing stone roller set on the inner end of the pressing stone rod.

[0007] The stone pressing rod, the oilstone, and the stone pressing screw are arranged in parallel. The inner end of the stone pressing rod corresponds to the upper end of the other end of the oilstone and is pressed against the upper surface of the oilstone through the stone pressing roller. The stone pressing motor drives the stone pressing screw to rotate. The rotation of the stone pressing screw drives the stone pressing slide to move horizontally. The stone pressing slide drives the stone pressing rod to move linearly back and forth toward the oilstone through the stone pressing connecting plate.

[0008] It also includes a pressurizing mechanism, which includes a slide rail mounted on the mounting platform, a slider slidably mounted on the slide rail, a pressurizing bracket mounted on the slider, a pressurizing cylinder mounted on the outer end of the pressurizing rod, and a pressurizing baffle mounted on one side of the pressurizing bracket.

[0009] The middle part of the stone pressing rod is hinged to the upper end of the pressure support. One end of the pressure baffle is fixed on the pressure support, and the other end extends outward and corresponds vertically to the outer end of the stone pressing rod. The telescopic end of the pressure cylinder is downward and corresponds to the pressure baffle.

[0010] The pressure support includes a support plate mounted on the mounting platform, a U-shaped plate mounted on the upper part of the support plate, a pin hole mounted on the U-shaped plate, and a pin inserted into the pin hole. The pin hole is located on the two side walls of the U-shaped plate. The middle part of the pressure rod is provided with a mounting hole corresponding to the pin hole. The U-shaped plate opens upward. The middle part of the pressure rod is located in the opening of the U-shaped plate and is hinged by the pin passing through the mounting hole. One end of the pressure baffle is fixed to the support plate.

[0011] The stone-pressing roller on the inner end of the stone-pressing rod is pressed against the middle of the upper end of the stone.

[0012] The linear electric slide is located on one side of the stone and corresponds longitudinally to the stone pressing screw and the pressure support. The pull rod has a U-shaped structure.

[0013] The beneficial effects of this utility model are: 1. When the oilstone performs linear reciprocating motion, the pressure rod simultaneously performs linear reciprocating motion, ensuring that the pressure roller at the end of the pressure rod is always pressed against the middle of the upper surface of the oilstone, thus ensuring uniform force on the oilstone. 2. The use of a pressure motor, pressure screw, and pressure slide to drive the pressure rod in linear reciprocating motion results in smoother movement, eliminates vibration, and effectively further improves grinding quality. 3. The pressure motor is a servo motor, allowing adjustment of the linear travel distance of the pressure rod driven by the motor as needed. This can be adjusted so that the travel distance of the pressure rod is the same as or half the travel distance of the oilstone, making it more flexible in use. Attached Figure Description

[0014] Figure 1 is a top view of the structure of this utility model;

[0015] Figure 2 is a side view of the pressurization mechanism of this utility model;

[0016] In the attached diagram, 1 is the mounting platform, 2 is the linear electric slide, 3 is the tie rod, 4 is the whetstone, 5 is the stone pressing frame, 6 is the stone pressing screw, 7 is the stone pressing motor, 8 is the stone pressing slide, 9 is the stone pressing connecting plate, 10 is the stone pressing rod, 11 is the stone pressing roller, 12 is the slide rail, 13 is the slider, 14 is the pressure support, 15 is the pressure cylinder, 16 is the pressure baffle, 17 is the support plate, 18 is the U-shaped plate, 19 is the pin, and 20 is the brake valve. Detailed Implementation

[0017] As shown in Figures 1-2, this utility model provides an oilstone follow-up pressing mechanism for a brake valve grinding machine, including a mounting platform 1, a linear electric slide 2 mounted on the mounting platform 1, a pull rod 3, and an oilstone 4. The moving end of the linear electric slide 2 is connected to one end of the pull rod 3, and the other end of the pull rod 3 is connected to one end of the oilstone 4. The oilstone 4 performs linear reciprocating motion under the drive of the linear electric slide 2. It also includes a pressing frame 5 mounted on the mounting platform 1, a pressing screw 6 rotatably mounted on the pressing frame 5, a pressing motor 7 mounted on the pressing frame 5 and driven by one end of the pressing screw 6, and a pressing... The stone screw 6 has a stone pressing slide 8, a stone pressing connecting plate 9 fixed on the stone pressing slide 8, a stone pressing rod 10 fixed to the stone pressing connecting plate 9 on one side, and a stone pressing roller 11 set at the inner end of the stone pressing rod 10. The stone pressing rod 10, the oilstone 4 and the stone pressing screw 6 are arranged in parallel. The inner end of the stone pressing rod 10 corresponds to the upper end of the other end of the oilstone 4 and is pressed against the upper surface of the oilstone 4 through the stone pressing roller 11. The stone pressing motor 7 drives the stone pressing screw 6 to rotate. The rotation of the stone pressing screw 6 drives the stone pressing slide 8 to move horizontally. The stone pressing slide 8 drives the stone pressing rod 10 to move linearly back and forth toward the oilstone 4 through the stone pressing connecting plate 9.

[0018] The moving end of the linear electric slide 2 is fixed to one end of the pull rod 3, which can drive the pull rod 3 to perform linear reciprocating motion. The other end of the pull rod 3 is fixed to one end of the oilstone 4, which can drive the oilstone 4 to perform linear reciprocating motion. In actual use, the oilstone is placed in the shaft hole of the brake valve 20, so that the lower end face of the oilstone abuts against the inner wall of the shaft hole. The linear reciprocating motion of the oilstone can grind the inner wall of the shaft hole of the brake valve 20.

[0019] This design adds an oilstone follow-up pressing mechanism based on the above, which consists of a pressing frame 5, a pressing screw 6, a pressing motor 7, a pressing slide 8, and a pressing connecting plate 9. The middle part of the pressing rod 10 is fixed to the pressing connecting plate 9. One end of the pressing rod 10 with a pressing roller 11 is pressed against the upper surface of the oilstone 4. When the oilstone 4 performs linear reciprocating motion, the pressing motor 7 drives the pressing screw 6 to rotate, which drives the pressing slide 8 to translate. The pressing slide 8 drives the pressing rod 10 to perform linear reciprocating motion simultaneously through the pressing connecting plate 9, so that the pressing roller 11 at the end of the pressing rod 10 is always pressed against the middle position of the upper surface of the oilstone 4, so that the oilstone 4 is subjected to uniform force. Moreover, this design mechanism is simple, and the use of the pressing motor 7 and the pressing screw 6 for driving makes the control more precise, the movement smooth, and does not produce vibration.

[0020] In this design, the specific structures of the stone-pressing slide 8 and the stone-pressing screw 6 are not limited, as long as they can enable the translation of the stone-pressing slide 8. For example, the stone-pressing slide 8 can be provided with an internally threaded sleeve hole to engage with the external thread of the stone-pressing screw 6. The specific structure of the stone-pressing frame 5 is not limited, as long as it can enable the installation of the stone-pressing screw 6. For example, the stone-pressing frame 5 can be composed of two opposing upright plates, with the two ends of the stone-pressing screw 6 rotatably mounted on the upright plates.

[0021] As shown in Figures 1-2, the system also includes a pressurizing mechanism. The pressurizing mechanism includes a slide rail 12 mounted on the mounting platform 1, a slider 13 slidably mounted on the slide rail 12, a pressurizing bracket 14 mounted on the slider 13, a pressurizing cylinder 15 mounted on the outer end of the pressing rod 10, and a pressurizing baffle 16 mounted on one side of the pressurizing bracket 14. The middle part of the pressing rod 10 is hinged to the upper end of the pressurizing bracket 14. One end of the pressurizing baffle 16 is fixed to the pressurizing bracket 14, and the other end extends outward and corresponds vertically to the outer end of the pressing rod 10. The extension end of the pressurizing cylinder 15 points downward and corresponds to the pressurizing baffle 16.

[0022] To ensure the pressure of the stone pressing rod 10 against the oilstone 4, a pressurizing mechanism is designed, consisting of a slide rail 12, a slider 13, a pressurizing bracket 14, a pressurizing cylinder 15, and a pressurizing baffle 16. The middle part of the stone pressing rod 10 is hinged to the pressurizing bracket 14. The extension end of the pressurizing cylinder 15 presses downward against the pressurizing baffle 16, causing the outer end of the stone pressing rod 10 to swing upward, and then the inner end of the stone pressing rod 10 to swing downward, ensuring the pressing force. At the same time, by adjusting the extension stroke of the extension end of the pressurizing cylinder 15, the pressing force of the stone pressing rod 10 against the oilstone 4 can be adjusted, which is very convenient to use. Furthermore, when the stone pressing rod 10 performs linear reciprocating motion, it drives the pressurizing bracket 14, the pressurizing cylinder 15, and the slider 13 to move synchronously as a whole on the slide rail 12, so that the pressing force against the oilstone 4 will not change due to the movement of the stone pressing rod 10, making it more stable and reliable.

[0023] The sliding connection method between slider 13 and slide rail 12 is not limited, as long as sliding can be achieved. For example, slider 13 is provided with a groove at the lower end, and the shape of slide rail 12 is adapted to it. In order to prevent the two from separating, the groove can be further adopted as a dovetail groove structure.

[0024] As shown in Figures 1-2, the pressure support 14 includes a support plate 17 mounted on the mounting platform 1, a U-shaped plate 18 mounted on the upper end of the support plate 17, a pin hole mounted on the U-shaped plate 18, and a pin 19 inserted into the pin hole. The pin hole is correspondingly located on the two side walls of the U-shaped plate. The middle part of the pressure rod 10 is provided with a mounting hole corresponding to the pin hole. The U-shaped plate 18 opens upward. The middle part of the pressure rod 10 is located in the opening of the U-shaped plate 18 and is hinged by the pin 19 passing through the mounting hole. One end of the pressure baffle 16 is fixed on the support plate 17.

[0025] The support plate 17 is vertically fixed on the mounting platform 1. The U-shaped plate 18 has an opening facing upwards and its bottom is fixed to the upper end of the support plate 17. Pin holes are provided on the two side walls at the opening of the U-shaped plate 18. Mounting holes are provided at the connection position between the stone pressing rod 10 and the U-shaped plate 18. When connecting, the stone pressing rod 10 is placed into the opening of the U-shaped plate 18, and a hinge connection is formed by the pin 19 passing through the pin hole and the mounting hole. The two ends of the pin 19 are limited outside the two side walls of the U-shaped plate 18 by the limiting plate and end cap of the pin 19 itself, so as not to hinder the swing of the stone pressing rod 10.

[0026] As shown in Figures 1-2, the stone-pressing roller 11 on the inner end of the stone-pressing rod 10 abuts against the middle of the upper end of the oilstone 4.

[0027] The pressure roller 11 is pressed against the upper middle part of the oilstone 4, which can better ensure that the oilstone 4 is subjected to more even force. The middle part can be a range or the center point, which can be adjusted according to actual needs.

[0028] As shown in Figures 1-2, the linear electric slide 2 is positioned on one side of the oilstone 4 and longitudinally corresponds to the pressure screw 6 and the pressure bracket 14. The tie rod 3 has a U-shaped structure. This makes the entire structure more compact and reduces the space occupied.

Claims

1. A honing stone follow-up clamping mechanism for a brake valve grinding machine, comprising a mounting platform (1), a linear electric slide (2) mounted on the mounting platform (1), a pull rod (3), and a honing stone (4), wherein the moving end of the linear electric slide (2) is connected to one end of the pull rod (3), and the other end of the pull rod (3) is connected to one end of the honing stone (4), and the honing stone (4) performs linear reciprocating motion under the drive of the linear electric slide (2), characterized in that: It also includes a stone pressing frame (5) set on the mounting platform (1), a stone pressing screw (6) rotatably set on the stone pressing frame (5), a stone pressing motor (7) set on the stone pressing frame (5) and connected to one end of the stone pressing screw (6), a stone pressing slide (8) set on the stone pressing screw (6), a stone pressing connecting plate (9) fixed on the stone pressing slide (8), a stone pressing rod (10) fixed on one side to the stone pressing connecting plate (9), and a stone pressing roller (11) set at the inner end of the stone pressing rod (10); The pressing rod (10), the oilstone (4), and the pressing screw (6) are arranged in parallel. The inner end of the pressing rod (10) corresponds to the upper end of the other end of the oilstone (4) and is pressed against the upper surface of the oilstone (4) through the pressing roller (11). The pressing motor (7) drives the pressing screw (6) to rotate. The rotation of the pressing screw (6) drives the pressing slide (8) to move horizontally. The pressing slide (8) drives the pressing rod (10) to move linearly back and forth toward the oilstone (4) through the pressing connecting plate (9).

2. The oilstone follow-up clamping mechanism for a brake valve grinding machine according to claim 1, characterized in that: It also includes a pressurizing mechanism, which includes a slide rail (12) on the mounting platform (1), a slider (13) slidably mounted on the slide rail (12), a pressurizing bracket (14) mounted on the slider (13), a pressurizing cylinder (15) mounted on the outer end of the pressing rod (10), and a pressurizing baffle (16) mounted on one side of the pressurizing bracket (14); the middle part of the pressing rod (10) is hinged to the upper end of the pressurizing bracket (14), one end of the pressurizing baffle (16) is fixed on the pressurizing bracket (14), and the other end extends outward and corresponds vertically to the outer end of the pressing rod (10), and the extension end of the pressurizing cylinder (15) is downward and corresponds to the pressurizing baffle (16).

3. The oilstone follow-up clamping mechanism for a brake valve grinding machine according to claim 2, characterized in that: The pressure support (14) includes a support plate (17) set on the mounting platform (1), a U-shaped plate (18) set on the upper end of the support plate (17), a pin hole set on the U-shaped plate (18) and a pin (19) inserted into the pin hole. The pin hole is set on the two side walls of the U-shaped plate. The middle part of the pressure rod (10) is provided with a mounting hole corresponding to the pin hole. The U-shaped plate (18) is open upward. The middle part of the pressure rod (10) is located in the opening of the U-shaped plate (18) and is hinged by passing through the mounting hole through the pin (19). One end of the pressure baffle (16) is fixed on the support plate (17).

4. The oilstone follow-up clamping mechanism for a brake valve grinding machine according to claim 1, characterized in that: The stone-pressing roller (11) on the inner end of the stone-pressing rod (10) abuts against the middle of the upper end of the oilstone (4).

5. The oilstone follow-up clamping mechanism for a brake valve grinding machine according to claim 1, characterized in that: The linear electric slide (2) is set on one side of the oilstone (4) and corresponds longitudinally to the pressure screw (6) and the pressure bracket (14). The pull rod (3) has a U-shaped structure.

Images