A high-speed jig mirror grinding and polishing machine

Abstract

This utility model discloses a high-speed jig mirror grinding and polishing machine, including a chassis, a hanger, a grinding material bin, a rotary drive assembly, and an automatic assembly mechanism. The automatic assembly mechanism includes a positioning component and a pushing component symmetrically arranged on both sides of the grinding material bin. The positioning component is connected to the rotary drive assembly, and the driving and pushing component is inserted into one end of the central axis of the hanger and pushes the hanger so that the other end of the central axis of the hanger is inserted into the positioning component. It also includes a lifting assembly for raising and lowering the grinding material bin. The lifting assembly includes a slide rod, a bracket, a lead screw that drives the bracket to move up and down along the slide rod, and a motor drive assembly. This utility model, by setting up an automatic assembly mechanism, effectively realizes convenient assembly and disassembly of the hanger, significantly improving work efficiency, simplifying the assembly and disassembly process, and making manual operation more convenient. At the same time, the synergistic effect of the positioning component and the pushing component ensures the stability and reliability of the hanger installation and disassembly process, further enhancing operational safety.

Description

Technical Field

[0001] This utility model relates to the field of grinding and polishing machine technology, and in particular to a high-speed jig mirror grinding and polishing machine. Background Technology

[0002] A polishing machine is a type of power tool. It consists of basic components such as a machine casing, a cover, a hanger drive device, an abrasive frame, a control panel, and electrical components. The hanger drive device drives the hanger to rotate, and the product fixed on the hanger rotates through the abrasive in the abrasive frame, thus polishing the product surface. For example, Chinese Patent 2024207466764 (publication date: December 3, 2024) discloses a novel grinding and polishing machine, relating to the field of polishing machine technology. The machine includes a chassis, with a tilting drive assembly and a rotating drive assembly respectively located at both ends. The output end of the rotating drive assembly is connected to a main shaft. The output end of the tilting drive assembly, located outside the main shaft, is connected to a sleeve and two sets of swing arm housings. The free ends of the two sets of swing arm housings are connected to two sets of driven shafts via bearings. The two sets of driven shafts are fitted with hangers via two sets of couplings. The tilting drive assembly drives the sleeve and the two sets of swing arm housings to rotate outside the main shaft, causing the two sets of driven shafts to drive the two sets of couplings and hangers to swing clockwise to the inside of the abrasive frame or counterclockwise to the front of the chassis. The two sets of driven shafts and hangers are connected via two sets of couplings, allowing for the installation and removal of the hangers by disassembling and assembling the two sets of couplings. This structure does not require additional lifting devices.

[0003] However, the aforementioned new type of grinding and polishing machine is connected to two sets of couplings via two sets of driven shafts and hangers. The hangers can be disassembled and assembled by disassembling and assembling the two sets of couplings. This disassembly method is relatively cumbersome and has a low safety factor, making it unsuitable for manual disassembly and replacement. Therefore, it is necessary to develop a grinding and polishing machine that can automatically disassemble and install hangers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-speed jig mirror grinding and polishing machine, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the following technical solution is provided: a high-speed jig mirror grinding and polishing machine, comprising: a machine housing, and a fixture for fixing the grinding product, a grinding hopper, and a rotary drive assembly for driving the fixture to rotate at high speed in the grinding hopper, all respectively disposed within the machine housing; and an automatic assembly mechanism, comprising a positioning component and a pushing component symmetrically disposed on both sides of the grinding hopper, wherein the positioning component is connected to the rotary drive assembly, and the driving and pushing component is inserted into one end of the central axis of the fixture and pushes the fixture so that the other end of the central axis of the fixture is inserted into the positioning component;

[0006] The pushing component includes a first base with a slide rail assembly and a movable seat that slides on the first base. The movable seat is rotatably connected to a movable insert shaft that is inserted into the central shaft via a bearing seat. The first base is provided with a power drive unit that drives the movable seat to drive the movable insert shaft to be inserted into one end of the central shaft of the hanger and then pushes the hanger.

[0007] The positioning component includes a second base and a fixed insert shaft disposed on the second base and rotatably connected by a bearing housing assembly. The second base is provided with a sensing and limiting component for limiting the initial position of the fixed insert shaft. The sensing and limiting component is electrically connected to the rotary drive component. When the hanger is pushed, the other end of the hanger's central shaft is inserted into the fixed insert shaft.

[0008] It also includes a lifting assembly for raising and lowering the grinding hopper. The lifting assembly includes multiple slide bars, a bracket sliding on the slide bars, a lead screw that drives the bracket to move up and down along the slide bars, and a motor drive assembly.

[0009] Furthermore, U-shaped grooves for suspending the central shaft of the hanger are symmetrically opened on both sides of the grinding material bin.

[0010] Furthermore, it also includes a blocking component to prevent the hanger from being raised too high. The blocking component includes a baffle that slides on the chassis and a push cylinder that drives the baffle to approach the U-shaped groove. One end of the baffle is provided with a pulley assembly, and the chassis is provided with a guide plate that cooperates with the pulley assembly. The guide plate is provided with a groove that cooperates with the pulley assembly.

[0011] Furthermore, the hanger includes several circular mounting plates evenly spaced on the central axis and several connecting rods arranged along the circumference of the circular mounting plates. The circular mounting plates are respectively provided with mounting slots for inserting the connecting rods. Each connecting rod is provided with vertical rods at equal intervals, and each vertical rod is provided with a quick-release fixture for inserting the product to be ground and polished.

[0012] Furthermore, the movable insert shaft and the fixed insert shaft are provided with polygonal slots, and when the movable insert shaft and the fixed insert shaft are installed, the axis of the polygonal slots on the movable insert shaft and the fixed insert shaft are on the same horizontal plane, and the two ends of the central shaft are provided with polygonal plug-in ends that match the polygonal slots.

[0013] Furthermore, the bottom of the grinding hopper is provided with a discharge port, and a baffle plate is provided on the bottom surface of the grinding hopper. One end of the baffle plate is pivotally connected to the bottom surface of the grinding hopper, and the other end is fastened to the bottom of the grinding hopper by screws.

[0014] Furthermore, the movable seat is provided with a connecting seat, and the connecting seat is provided with a deep groove ball bearing that is connected to the movable insert shaft.

[0015] Compared with existing technologies, this invention offers the following advantages: By lifting the hanger using the lifting component, the central axis is aligned with the axes of the moving and fixed insertion shafts. The power drive unit then drives the moving seat to engage one end of the moving insertion shaft with the central axis of the hanger, and continues to push the hanger until the other end of the central axis engages with the fixed insertion shaft. Due to the sensing and limiting component, when the rotation drive component stops driving the hanger, the installation positions of the moving and fixed insertion shafts remain unchanged, facilitating hanger installation. This invention, through its designed automatic assembly mechanism, effectively achieves convenient hanger assembly and disassembly, significantly improving work efficiency and simplifying the assembly and disassembly process, making manual operation easier. Simultaneously, the synergistic effect of the positioning and pushing components ensures the stability and reliability of the hanger installation and disassembly process, further enhancing operational safety. This grinding and polishing machine not only significantly improves production efficiency but also reduces operational difficulty and safety hazards. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model after the chassis has been removed;

[0018] Figure 3 This is a schematic diagram showing the positional relationship between the lifting component and the grinding hopper in this utility model;

[0019] Figure 4 This is a schematic diagram showing the positional relationship between the hanger and the automatic assembly mechanism in this utility model;

[0020] Figure 5 This is a schematic diagram of the hanging device in this utility model. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figure 1This embodiment provides a high-speed jig mirror grinding and polishing machine, which includes a housing 10 and a fixture 20 for fixing the grinding product, a grinding material bin 30, a rotary drive assembly 40 for driving the fixture 20 to rotate at high speed in the grinding material bin 30, and an automatic assembly mechanism 50 for installing and fixing the fixture 20 so that the fixture 20 is rotated by the rotary drive assembly 40. A PLC control device 60 for controlling the operation of the equipment is provided on the housing 10. The PLC control device 60 is equipped with a touch screen and control buttons.

[0023] like Figure 3 As shown, a lifting assembly 80 for driving the abrasive bin 30 to rise and fall is also provided inside the chassis 10. When the fixed hanger 20 is driven by the rotation drive assembly 40 via the lifting assembly 80, the product to be polished inserted on the hanger 20 effectively contacts the abrasive in the abrasive bin 30. In this embodiment, the main structure of the lifting assembly 80 includes four slide rods 81 vertically fixed to one side inside the chassis 10, spaced apart. A bracket 82 is provided on the slide rods 81, and the abrasive bin 30 is placed on the bracket 82. A device connected to the bracket 82 and driving the bracket 82 along the slide rods 81 is also provided inside the chassis 10. 1. A screw and motor drive assembly 83 that moves up and down; In addition, U-shaped grooves 31 for suspending the central shaft 21 of the hanger 20 are symmetrically opened on both sides of the abrasive bin 30. The central shaft 21 of the hanger 20 is placed in the U-shaped grooves 31, and the screw and motor drive assembly 83 is activated to make the bracket 82 move up along the slide bar 81, which drives the central shaft 21 of the hanger 20 to align with the automatic assembly mechanism 50. The automatic assembly mechanism 50 automatically installs and fixes the hanger 20, and then the hanger 20 is rotated by the rotation drive assembly 40, so that the product inserted on the hanger 20 is ground and polished with the abrasive in the abrasive bin 30 during the rotation of the hanger 20.

[0024] like Figure 2 and Figure 4As shown, the automatic assembly mechanism 50 is used for automatically installing and disassembling the hanger 20. The automatic assembly mechanism 50 includes positioning components 51 and pushing components 52 symmetrically arranged on both sides of the grinding material bin 30. The pushing component 52 includes a first base 520 fixed inside the housing 10, a slide rail assembly 521 on the first base 520, and a movable seat 522 slidingly mounted on the slide rail assembly 521. A movable insertion shaft 523, which is inserted into one end of the central axis 21 of the hanger 20, is rotatably mounted on the movable seat 522. The first base 520 also has a power drive unit 524 that drives the movable seat 522 to reciprocate along the slide rail assembly 521. Furthermore, the first base 520... A buffer is provided on a base 520; in this embodiment, the power drive unit 524 is a cylinder; in order to enable the movable insert shaft 523 to rotate on the movable seat 522, a bearing seat 525 is fixed on one side of the upper end face of the movable seat 522, and a connecting seat 526 is fixed on the other side, and a deep groove ball bearing 527 is provided on the connecting seat 526. The movable insert shaft 523 is connected to the bearing seat 525 and the deep groove ball bearing 527, thereby enabling the movable insert shaft 523 to rotate; in addition, the positioning component 51 includes a second base 510 fixed on the housing 10, and a bearing seat composed of two bearing seats is fixed on the second base 510. Group 511, with a fixed insert shaft 512 rotatably mounted on the bearing housing group 511, and the synchronous pulley of the rotary drive assembly 40 mounted on the fixed insert shaft 512. When the lifting assembly 80 lifts the hanger 20, so that the central shaft 21 of the hanger 20 is at the same height as the axes of the movable insert shaft 523 and the fixed insert shaft 512, the power drive unit 524 drives the movable seat 522 to drive the movable insert shaft 523 to insert into one end of the central shaft 21 of the hanger 20, and then continues to push the hanger 20 so that the other end of the central shaft 21 of the hanger 20 is inserted into the fixed insert shaft 512, thereby realizing automatic installation. When the fixed insertion shaft 512, which is connected to the synchronous pulley by the motor drive belt of the rotary drive assembly 40, rotates, it drives the hanging fixture 20 that is inserted with it to rotate. When disassembling, the power drive unit 524 drives the movable seat 522 to move the movable insertion shaft 523 backward, so that the movable insertion shaft 523 disengages from the central shaft 21 of the hanging fixture 20, and the central shaft 21 falls into the U-shaped groove 31. Then, the central shaft 21 that is inserted with the fixed insertion shaft 512 is pushed out to complete the disassembly. Through this setting, not only is the automatic installation and disassembly of the hanging fixture 20 realized, but the work efficiency is also greatly improved and the tediousness and error of manual operation are reduced.

[0025] To ensure that the movable insert shaft 523 and the fixed insert shaft 512 can drive the hanger 20 to rotate without failing to do so, polygonal slots are provided on both the movable insert shaft 523 and the fixed insert shaft 512. During installation, the axes of the polygonal slots on the movable insert shaft 523 and the fixed insert shaft 512 are on the same horizontal plane, and polygonal insertion ends that mate with the polygonal slots are provided at both ends of the central shaft 21. The polygonal insertion ends ensure that the central shaft 21 of the hanger 20 can be securely inserted into the polygonal slots of the movable insert shaft 523 and the fixed insert shaft 512, thus preventing slippage or failure to drive the hanger 20 to rotate during rotation. When the rotation drive assembly 40 is activated, driving the fixed insert shaft 512 to rotate, the hanger 20 can rotate stably due to the tight fit between the polygonal slots and the polygonal insertion ends, achieving efficient mirror grinding and polishing operations.

[0026] To facilitate quick and easy installation of the hanger 20 and prevent inconsistencies in the positions of the polygonal slots on the movable insert shaft 523 and the fixed insert shaft 512, a sensing limiting component 53 is provided on the second base 510 to define the initial position of the fixed insert shaft 512. This sensing limiting component 53 includes a U-shaped sensor fixed to the second base 510 and electrically connected to the PLC control device 60, and a sensing plate located on the side wall of the fixed insert shaft 512 that senses the U-shaped sensor. When the fixed insert shaft 512 rotates the sensing plate to the U-shaped sensor, the U-shaped sensor senses the sensing plate and feeds a signal back to the PLC control device 60. This causes the PLC control device 60 to control the rotation drive component 40 to stop rotating, thus stopping the fixed insert shaft 512 at the set initial position. This ensures that the positions of the polygonal slots on the movable insert shaft 523 and the fixed insert shaft 512 are aligned, allowing for subsequent installation of the hanger 20 without needing to adjust the polygonal slots, thereby improving installation efficiency.

[0027] To prevent the mounting bracket 20 from being raised too high and to improve the installation efficiency and accuracy of the mounting bracket 20, therefore, as follows: Figure 1 As shown, the chassis 10 is also equipped with a blocking assembly 70 to prevent the hanger 20 from being raised too high. The blocking assembly 70 includes a baffle 71 slidably mounted on the chassis 10 and a push cylinder 72 that drives the baffle 71 close to the U-shaped groove 31. One end of the baffle 71 is provided with a pulley system, and the chassis 10 is provided with a guide plate 73 that cooperates with the pulley system. The guide plate 73 is provided with a groove that cooperates with the pulley system. When the push cylinder 72 is activated, the pulley system slides along the groove of the guide plate 73, so that the baffle 71 moves smoothly towards the U-shaped groove 31. When the hanger 20 is raised to a certain height, the baffle 71 just blocks the hanger 20 from rising further, thereby effectively preventing the hanger 20 from being raised too high and ensuring the accuracy of the hanger 20 during installation.

[0028] In an alternative embodiment, such as Figure 5 As shown, the hanger 20 includes several circular mounting plates 22 evenly spaced on a central shaft 21 and several connecting rods 23 arranged along the circumference of the circular mounting plates 22. Each circular mounting plate 22 has a corresponding mounting groove for inserting the connecting rod 23. Each connecting rod 23 has an evenly spaced vertical rod 24, and each vertical rod 24 has a quick-release fixture 25 for inserting the product to be ground and polished. After the connecting rod 23 is inserted into the mounting groove, it is fixed to the circular mounting plate 22 by welding. The mounting groove increases the strength of the connecting rod 23, preventing deformation under high-speed rotation and friction from the abrasive material. The mounting groove design also makes the connection between the connecting rod 23 and the circular mounting plate 22 more stable, ensuring the stability of the hanger 20 during high-speed rotation. Furthermore, the use of the quick-release fixture 25 makes the installation and removal of the product to be ground and polished more convenient, greatly improving work efficiency.

[0029] In an optional embodiment, the bottom of the grinding material hopper 30 is provided with a discharge port, and a baffle plate is provided on the bottom surface of the grinding material hopper 30. One end of the baffle plate is pivotally connected to the bottom surface of the grinding material hopper 30, and the other end is locked to the bottom of the grinding material hopper 30 by screws. The design of the baffle plate makes it easy to open the discharge port when it is necessary to clean or replace the grinding material. By rotating the baffle plate, it is no longer blocked from the discharge port, thereby realizing the rapid discharge of the grinding material.

[0030] In summary, by lifting the hanger 20 with the lifting component 80, so that the central shaft 21 is at the same height as the axes of the movable insertion shaft 523 and the fixed insertion shaft 512, the power drive unit 524 drives the movable seat 522 to engage the movable insertion shaft 523 with one end of the central shaft 21 of the hanger 20, and then continues to push the hanger 20 so that the other end of the central shaft 21 of the hanger 20 engages with the fixed insertion shaft 512. Due to the action of the sensing limit component 53, when the rotation drive component 40 drives the hanger 20 to stop rotating, the installation positions of the movable insertion shaft 523 and the fixed insertion shaft 512 remain unchanged, facilitating the installation of the hanger 20. This utility model, through the designed automatic assembly mechanism 50, effectively realizes the convenient assembly and disassembly of the hanger 20, significantly improves work efficiency, simplifies the assembly and disassembly process of the hanger 20, and makes manual operation more convenient. At the same time, the synergistic action of the positioning component 51 and the pushing component 52 ensures the stability and reliability of the installation and disassembly process of the hanger 20, further enhancing the safety of operation.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A high speed fixture mirror lapping and polishing machine comprising: The machine casing, and the fixture for fixing the grinding product, the grinding hopper, and the rotary drive assembly for driving the fixture to rotate at high speed in the grinding hopper, respectively, are characterized in that they also include an automatic assembly mechanism. The automatic assembly mechanism includes a positioning component and a pushing component symmetrically arranged on both sides of the grinding hopper. The positioning component is connected to the rotary drive assembly, and the driving and pushing component is inserted into one end of the central axis of the fixture and pushes the fixture so that the other end of the central axis of the fixture is inserted into the positioning component. The pushing component includes a first base with a slide rail assembly and a movable seat that slides on the first base. The movable seat is rotatably connected to a movable insert shaft that is inserted into the central shaft via a bearing seat. The first base is provided with a power drive unit that drives the movable seat to drive the movable insert shaft to be inserted into one end of the central shaft of the hanger and then pushes the hanger. The positioning component includes a second base and a fixed insert shaft disposed on the second base and rotatably connected by a bearing housing assembly. The second base is provided with a sensing and limiting component for limiting the initial position of the fixed insert shaft. The sensing and limiting component is electrically connected to the rotary drive component. When the hanger is pushed, the other end of the hanger's central shaft is inserted into the fixed insert shaft. It also includes a lifting assembly for raising and lowering the grinding hopper. The lifting assembly includes multiple slide bars, a bracket sliding on the slide bars, a lead screw that drives the bracket to move up and down along the slide bars, and a motor drive assembly.

2. The high speed jig polishing machine according to claim 1, wherein The grinding chamber has symmetrical U-shaped grooves on both sides for suspending the central shaft of the hanger.

3. The high speed jig polishing machine of claim 2, wherein, It also includes a blocking component to prevent the hanger from being raised too high. The blocking component includes a baffle that slides on the chassis and a push cylinder that drives the baffle to approach the U-shaped groove. One end of the baffle is provided with a pulley assembly, and the chassis is provided with a guide plate that cooperates with the pulley assembly. The guide plate is provided with a groove that cooperates with the pulley assembly.

4. The high speed fixture mirror polishing machine of claim 1, wherein, The fixture includes several circular mounting plates evenly spaced on a central axis and several connecting rods arranged along the circumference of the circular mounting plates. The circular mounting plates are provided with mounting slots for inserting the connecting rods. Each connecting rod is provided with vertical rods at equal intervals, and each vertical rod is provided with a quick-release fixture for inserting the product to be ground and polished.

5. The high speed fixture mirror polishing machine of claim 1, wherein, The movable insert shaft and the fixed insert shaft are provided with polygonal slots. When the movable insert shaft and the fixed insert shaft are installed, the axis of the polygonal slot on the movable insert shaft and the fixed insert shaft is on the same horizontal plane, and the two ends of the central shaft are provided with polygonal plug-in ends that match the polygonal slots.

6. The high speed fixture mirror polishing machine of claim 1, wherein, The bottom of the grinding hopper is equipped with a discharge port, and a baffle plate is provided on the bottom surface of the grinding hopper. One end of the baffle plate is pivotally connected to the bottom surface of the grinding hopper, and the other end is fastened to the bottom of the grinding hopper by screws.

7. The high speed fixture mirror polishing machine of claim 1, wherein, The movable seat is equipped with a connecting seat, and the connecting seat is equipped with a deep groove ball bearing that is connected to the movable insert shaft.

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