A mechanical part polishing device

Abstract

The utility model discloses a kind of mechanical parts polishing devices, including workbench, its top rotation is installed with magnetic attraction carousel, magnetic attraction carousel is used to position the part placed on it;Stand, its vertical solid is set in workbench top two sides, and horizontal drive module is provided between stand, and stand and horizontal drive module jointly constitute door type structure;The output end of horizontal drive module is fixed with mounting seat, mounting seat side surface one end installs alignment assembly, another end is installed with vertical drive module, the output end of vertical drive module is horizontally fixed with mounting plate, and the one end of mounting plate away from vertical drive module is extended and is provided with polishing unit downward, moves by horizontal drive module and vertical drive module control polishing unit, to polish the inner hole, outside circle, end surface of part;The center line of alignment assembly and magnetic attraction carousel and polishing unit is on the same plane;Operation screen, it is installed on one side stand.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, specifically to a grinding device for mechanical parts. Background Technology

[0002] In the field of mechanical manufacturing, after machining the inner hole, outer circle, and end face of parts (such as flanges), surface burrs, oxide layers, and machining marks need to be removed by grinding to meet assembly accuracy and surface quality requirements. Existing grinding equipment can only grind the inner hole or outer circle of a part, requiring secondary clamping and grinding using different equipment or processes, resulting in low processing efficiency and accuracy.

[0003] Therefore, it is necessary to provide a mechanical parts grinding device to solve the problems mentioned in the background art. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mechanical parts grinding device, comprising: a worktable, on the top of which a magnetic turntable is rotatably mounted, the magnetic turntable being used to position the parts placed thereon; A vertical frame is fixedly mounted on both sides of the top of the workbench, and a horizontal drive module is arranged between the vertical frames. The vertical frames and the horizontal drive module together form a portal structure. A mounting base is fixedly mounted at the output end of the horizontal drive module. A leveling component is mounted on one end of the mounting base, and a vertical drive module is mounted on the other end. A mounting plate is horizontally fixed at the output end of the vertical drive module. A grinding unit is provided at the end of the mounting plate away from the vertical drive module. The grinding unit is moved by controlling the horizontal and vertical drive modules to grind the inner hole, outer circle, and end face of the part. The center lines of the leveling component, the magnetic turntable, and the grinding unit are on the same plane. The control panel is mounted on the stand on one side.

[0005] Preferably, both the horizontal drive module and the vertical drive module adopt a lead screw and nut pair structure.

[0006] Preferably, the alignment component includes: an electric telescopic rod fixed vertically downward at one end of the side of the mounting base, and an alignment cone coaxially mounted on the piston rod end of the electric telescopic rod, with the small end of the alignment cone facing downward, for aligning the part to be processed.

[0007] Preferably, the center of the large cone end of the alignment cone has a downward-facing mounting cavity, and a sealing plate is installed at the outer end of the mounting cavity. A stepped hole is formed through the sealing plate, with the large hole section of the stepped hole facing the interior of the mounting cavity. A limiting plate is rotatably installed inside the large hole section. The piston rod of the electric telescopic rod passes through the small hole section of the stepped hole and is fixedly connected to the limiting plate. A buffer spring is provided between the limiting plate and the bottom of the mounting cavity.

[0008] Preferably, the limiting plate is provided with a pressure sensing unit on the side facing the buffer spring.

[0009] Preferably, the lowest point of the alignment cone is higher than the lowest point of the vertical drive module.

[0010] Preferably, a servo motor is mounted on the top of the mounting plate, and the output end of the servo motor passes downward through the mounting plate and is coaxially connected to the grinding unit.

[0011] Preferably, the polishing unit includes a polishing rod or a polishing disc, which is connected to the output end of the servo motor via a tool holder.

[0012] Preferably, a protective cover is installed at intervals on the top of the workbench outside the magnetic turntable.

[0013] Compared with the prior art, the present invention provides a grinding device for mechanical parts, which has the following advantages: In this invention, by setting up a horizontal drive module, a vertical drive module, an alignment component, and a grinding unit, the horizontal and vertical drive modules drive the alignment component and grinding unit to move horizontally or vertically. Without changing equipment, the inner hole, outer circle, or end face of a part (such as a flange) can be ground with only one clamping. This improves the adaptability of the grinding equipment to grinding different positions of the part, as well as the grinding efficiency and accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a mechanical parts grinding device. Figure 2 A schematic diagram of a mechanical parts grinding device; Figure 3 A schematic diagram of the alignment cone section structure of a grinding device for mechanical parts; In the diagram: 1. Workbench; 2. Magnetic turntable; 3. Stand; 4. Horizontal drive module; 5. Mounting base; 6. Alignment cone; 7. Vertical drive module; 8. Grinding unit; 9. Electric telescopic rod; 10. Mounting plate; 11. Servo motor; 12. Mounting cavity; 13. Sealing plate; 14. Limiting plate; 15. Buffer spring; 16. Protective cover. Detailed Implementation

[0015] Please see Figure 1-3 This utility model provides a grinding device for mechanical parts, comprising: The workbench 1 has a magnetic turntable 2 rotatably mounted on its top. The magnetic turntable 2 is used to position the parts placed on it. An electromagnet / ring-shaped electromagnetic coil is installed inside the magnetic turntable 2 and is connected to the internal control circuit of the workbench 1 through a guide. The electromagnet is controlled by turning the power on and off to attract and fix the parts to be polished. A motor is installed at the bottom of the magnetic turntable 2 inside the workbench 1. The motor drives the magnetic turntable 2 to rotate the parts to be polished. A vertical support frame 3 is fixedly mounted on both sides of the top of the workbench 1, and a horizontal drive module 4 is arranged between the vertical support frames 3. The vertical support frames 3 and the horizontal drive module 4 together form a gate-shaped structure. A mounting base 5 is fixedly mounted on the output end of the horizontal drive module 4. A leveling component is mounted on one end of the side of the mounting base 5, and a vertical drive module 7 is mounted on the other end. A mounting plate 10 is horizontally fixed on the output end of the vertical drive module 7. A grinding unit 8 is provided on the end of the mounting plate 10 away from the vertical drive module 7. The grinding unit 8 is moved by the horizontal drive module 4 and the vertical drive module 7 to grind the inner hole, outer circle, and end face of the part. The center lines of the leveling component, the magnetic turntable 2, and the grinding unit 8 are on the same plane. The operation screen is installed on the support frame 3 on one side. The operation screen is used to set parameters (such as grinding speed, movement stroke, magnetic attraction strength), display working status such as grinding progress, motor speed, fault code, switch between manual / automatic modes, and perform emergency stop operations. The controller of the operation screen is electrically connected to the magnetic turntable 2, the horizontal drive module 4, the vertical drive module 7, the grinding unit 8, and the alignment component, respectively, and is used to control the operation of each component.

[0016] It should be explained that when grinding the inner hole, outer circle, or end face of flange-like parts, the magnetic turntable 2 (such as a circular electromagnetic chuck) is first cleaned. Then, the flange-like part to be ground is placed in the center of the magnetic turntable 2 (with the large end of the flange in contact with the turntable 2). Next, the horizontal drive module 4 drives the mounting base 5 to move the alignment component to the center of the magnetic turntable 2. The alignment component aligns the part, making it coaxial with the magnetic turntable 2. Then, the magnetic attraction function is activated via the operation screen to attach the part to the surface of the magnetic turntable 2, preventing displacement during grinding. Specifically, the horizontal drive module 4 drives the grinding unit 8 to move horizontally, making the grinding unit 8 internally tangent to the inner hole or externally tangent to the outer circle of the part, thus achieving grinding of the inner hole, outer circle, and end face of the flange-like part. The vertical drive module 7 controls the vertical lifting and lowering of the grinding unit 8 to avoid interference with the part to be ground when the horizontal drive module 4 is adjusted horizontally. After grinding is completed, grinding unit 8 stops rotating, vertical drive module 7 drives it to reset upwards, and horizontal drive module 4 drives mounting base 5 back to its initial position; the operator can turn off the magnetic suction function through the operation screen and remove the ground parts.

[0017] Before grinding, the grinding trajectory program needs to be edited according to the part size, the size of the grinding unit 8, the distance of the alignment component to the center line position of the magnetic turntable 2, and the distance between the center line of the alignment component and the center line of the grinding unit 8, in order to avoid interference.

[0018] Furthermore, both the horizontal drive module 4 and the vertical drive module 7 adopt a lead screw and nut pair structure.

[0019] Specifically, the screw and nut assembly structures all adopt ball screw and nut assemblies. The screw length of the horizontal drive module 4 matches the span of the upright frame 3, and the screw length of the vertical drive module 7 is set according to the grinding height requirements. An accordion-style dust cover (not shown in the figure) is fitted on the outside of the screw to prevent grinding dust from entering the gap between the screw and the nut. Each screw and nut assembly is equipped with a servo motor.

[0020] Furthermore, the alignment component includes: an electric telescopic rod 9 vertically and downwardly fixed at one end of the side of the mounting base 5, and an alignment cone 6 coaxially mounted on the piston rod end of the electric telescopic rod 9, with the small end of the alignment cone 6 facing downward, used for aligning the part to be processed.

[0021] Furthermore, the center of the large cone end of the alignment cone 6 is provided with an installation cavity 12, and a sealing plate 13 is installed at the outer end of the installation cavity 12. A stepped hole is provided through the sealing plate 13, with the large hole section of the stepped hole facing the interior of the installation cavity 12. A limiting plate 14 is rotatably installed inside the large hole section. The piston rod of the electric telescopic rod 9 passes through the small hole section of the stepped hole and is fixedly connected to the limiting plate 14. A buffer spring 15 is provided between the limiting plate 14 and the bottom of the installation cavity 12.

[0022] In other words, when aligning flange-type parts, the electric telescopic rod 9 controls the alignment cone 6 to move slowly downwards. The cone surface of the alignment cone 6 guides the parts to be ground with different specifications of inner holes, making them coaxial with the magnetic turntable 2. The buffer spring 15 buffers the parts when the alignment cone 6 contacts the inner hole, preventing damage to the parts.

[0023] Furthermore, the limiting plate 14 is provided with a pressure sensing unit on the side facing the buffer spring 15, which facilitates the control of the downward pressure of the alignment cone 6 and avoids damaging the parts.

[0024] Furthermore, the lowest point of the alignment cone 6 is higher than the lowest point of the vertical drive module 7, with the lowest point of the vertical drive module 7 serving as the minimum limit, which facilitates program setting.

[0025] Furthermore, a servo motor 11 is mounted on the top of the mounting plate 10. The output end of the servo motor 11 passes downward through the mounting plate 10 and is coaxially connected to the grinding unit 8. The grinding unit 8 is driven by the servo motor 11 to rotate and grind the part to be ground.

[0026] It should be noted that the magnetic turntable 2 and the grinding unit 8 rotate in opposite directions. During grinding, the rotation speed of the grinding unit 8 (high-speed rotation 15-150 m / s) is greater than that of the magnetic turntable 2 (low-speed rotation 0.05-0.5 m / s) to avoid the high-speed rotation affecting the stability of the workpiece.

[0027] Furthermore, the grinding unit 8 includes a grinding rod or a grinding disc, which are respectively connected to the output end of the servo motor 11 via a tool holder. The grinding rod is used to grind the inner hole or outer circle of the part, and the grinding disc is used to grind the end face of the part.

[0028] Furthermore, a protective cover 16 is installed at intervals on the top of the workbench 1, located outside the magnetic turntable 2. The protective cover 16 has an openable and closable protective door on its side.

[0029] In practice, when polishing flange-type parts, firstly, the magnetic turntable 2 is cleaned. Then, the flange-type part to be polished is placed in the center of the magnetic turntable 2. Next, the horizontal drive module 4 drives the alignment component to align the part, making it coaxial with the magnetic turntable 2. Then, the magnetic attraction function is activated through the operation screen to attract the part to the surface of the magnetic turntable 2. Finally, the polishing unit 8 is controlled by a pre-edited program to polish different positions of the flange-type part. After polishing is completed, the polishing unit 8 stops rotating, the vertical drive module 7 drives it to reset upwards, and the horizontal drive module 4 drives the mounting base 5 back to its initial position. The operator then turns off the magnetic attraction function through the operation screen and removes the polished part.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grinding device for mechanical parts, characterized in that, include: The workbench (1) has a magnetic turntable (2) rotatably mounted on its top, which is used to position the parts placed on it; A vertical frame (3) is fixedly mounted on both sides of the top of the workbench (1), and a horizontal drive module (4) is arranged between the vertical frames (3). The vertical frames (3) and the horizontal drive module (4) together form a gate-shaped structure. A mounting base (5) is fixedly mounted at the output end of the horizontal drive module (4). A centering component is installed at one end of the side of the mounting base (5), and a vertical drive module (7) is installed at the other end. A mounting plate (10) is horizontally fixed at the output end of the vertical drive module (7). A grinding unit (8) is provided at the end of the mounting plate (10) away from the vertical drive module (7). The grinding unit (8) is moved by the horizontal drive module (4) and the vertical drive module (7) to grind the inner hole, outer circle, and end face of the part. The center lines of the centering component, the magnetic turntable (2), and the grinding unit (8) are on the same plane. The operation screen is mounted on the stand (3) on one side.

2. The mechanical parts grinding device according to claim 1, characterized in that, Both the horizontal drive module (4) and the vertical drive module (7) adopt a lead screw and nut pair structure.

3. The mechanical parts grinding device according to claim 1, characterized in that, The alignment component includes an electric telescopic rod (9) that is vertically fixed downward at one end of the side of the mounting base (5). An alignment cone (6) is coaxially mounted on the piston rod end of the electric telescopic rod (9). The small end of the alignment cone (6) faces downward and is used to align the workpiece to be processed.

4. The mechanical parts grinding device according to claim 3, characterized in that, The center of the large cone end of the alignment cone (6) is provided with an installation cavity (12) facing downward. A sealing plate (13) is installed at the outer end of the installation cavity (12). A stepped hole is provided through the sealing plate (13). The large hole section of the stepped hole is set towards the interior of the installation cavity (12). A limiting plate (14) is rotatably set inside the large hole section. The piston rod of the electric telescopic rod (9) passes through the small hole section of the stepped hole and is fixedly connected to the limiting plate (14). A buffer spring (15) is provided between the limiting plate (14) and the bottom of the installation cavity (12).

5. A mechanical parts grinding device according to claim 4, characterized in that, The limiting plate (14) is provided with a pressure sensing unit on the side facing the buffer spring (15).

6. A mechanical parts grinding device according to claim 3, characterized in that, The lowest point of the alignment cone (6) is higher than the lowest point of the vertical drive module (7).

7. The mechanical parts grinding device according to claim 1, characterized in that, A servo motor (11) is mounted on the top of the mounting plate (10), and the output end of the servo motor (11) passes downward through the mounting plate (10) and is coaxially connected to the grinding unit (8).

8. A mechanical parts grinding device according to claim 7, characterized in that, The polishing unit (8) includes a polishing rod or a polishing disc, which is connected to the output end of the servo motor (11) via a tool holder.

9. A mechanical parts grinding device according to claim 1, characterized in that, The top of the workbench (1) is equipped with a protective cover (16) at intervals outside the magnetic turntable (2).

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