Triaxial grinding device for metal workpieces

Abstract

This utility model belongs to the field of metal workpiece processing technology, and particularly relates to a three-axis grinding device for metal workpieces. The device includes: a rotary working mechanism comprising a rotary worktable and a fixture fixing assembly, the fixture fixing assembly being spaced apart along the circumference of the rotary worktable; and a grinding mechanism comprising a first linear motion assembly, a support frame, a second linear motion assembly, a third linear motion assembly, and a grinding assembly. The first linear motion assembly is located on one side of the rotary worktable, the support frame is located on the output end of the first linear motion assembly, the second linear motion assembly is located on the support frame, the third linear motion assembly is located on the output end of the second linear motion assembly, and the grinding assembly is located on the output end of the third linear motion assembly. This device, through the multi-directional movement of the grinding assembly, ensures that all areas of the workpiece surface are covered by the grinding assembly, avoiding grinding dead zones and improving the overall grinding performance.

Description

Technical Field

[0001] This application relates to the field of metal workpiece processing technology, and in particular to a triaxial grinding device for metal workpieces. Background Technology

[0002] In the field of precision manufacturing of metal workpieces, surface grinding is a critical process that determines the final dimensional accuracy, surface roughness, and subsequent assembly performance of the workpiece. In related technologies, grinding devices are generally single-fixed grinding heads, where the workpiece is moved by a conveyor belt or robotic arm to a fixed single-axis or dual-axis grinding brush mechanism to achieve grinding of a single plane or simple contour. This fixed grinding mechanism cannot dynamically adjust the movement path according to the real-time position of the workpiece, further reducing the grinding consistency of the same batch of workpieces.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] In view of at least one of the above technical problems, this application provides a triaxial grinding apparatus for metal workpieces.

[0005] This application provides a triaxial grinding apparatus for metal workpieces, the apparatus comprising:

[0006] A rotary working mechanism, comprising a rotary worktable and fixture fixing components, wherein the fixture fixing components are spaced apart along the periphery of the rotary worktable;

[0007] The grinding mechanism includes a first linear motion component, a support frame, a second linear motion component, a third linear motion component, and a grinding component. The first linear motion component is located on one side of the rotary table, the support frame is located on the output end of the first linear motion component, the second linear motion component is located on the support frame, the third linear motion component is located on the output end of the second linear motion component, and the grinding component is located on the output end of the third linear motion component.

[0008] This device, through the multi-directional movement of the grinding components, ensures that all areas of the workpiece surface are covered by the grinding components, avoiding grinding dead spots and improving the overall grinding performance.

[0009] In some possible implementations, the movement directions of the first linear motion component, the second linear motion component, and the third linear motion component are perpendicular to each other.

[0010] In some possible implementations, the first linear motion assembly includes a first motor, a first mounting base, a second mounting base, a first lead screw transmission unit, and a first moving plate. The first and second mounting bases are spaced apart and disposed on one side of the rotary table. The first lead screw transmission unit is rotatably mounted on the first and second mounting bases. The first moving plate is disposed on the output end of the first lead screw transmission unit. The first motor is disposed on one side of the first mounting base, and the output end of the first motor is connected to the first lead screw transmission unit through a first coupling. The second linear motion assembly is disposed on the first moving plate.

[0011] In some possible implementations, the second linear motion assembly includes a second motor, a third mounting base, a fourth mounting base, a second lead screw drive unit, and a second movable plate. The third and fourth mounting bases are spaced apart on the support frame. The second lead screw drive unit is rotatably mounted on the third and fourth mounting bases. The second movable plate is mounted on the second lead screw drive unit. The second motor is located on the side of the third mounting base. The output end of the second motor is connected to the second lead screw drive unit via a second coupling. The third linear motion assembly is mounted on the second movable plate.

[0012] In some possible implementations, the third linear motion component includes a third motor, a gear, a rack, and a third moving plate. The third motor is located on the output end of the second linear motion component, the gear is sleeved on the output end of the third motor, the rack is fixed to the third moving plate, the rack meshes with the gear, and the grinding component is located on the third moving plate.

[0013] In some possible implementations, the grinding assembly includes a fourth motor, a driving wheel, a driven wheel, a transmission belt, and grinding units. The fourth motor is located at the output end of the third linear motion assembly. There are three grinding units spaced apart on the third linear motion assembly. One grinding unit is connected to the output end of the fourth motor and a driving wheel is mounted on the grinding unit. There are two driven wheels, which are respectively mounted on the other two grinding units. The transmission belt is connected to the driving wheel and the driven wheel.

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the triaxial grinding device for metal workpieces provided in the embodiments of this application;

[0017] Figure 2 yes Figure 1 Schematic diagram of the grinding assembly;

[0018] In the picture:

[0019] 100. Rotary working mechanism; 110. Rotary worktable; 120. Fixture fixing assembly;

[0020] 200. Grinding mechanism; 210. First linear motion assembly; 220. Support frame; 230. Second linear motion assembly; 240. Third linear motion assembly;

[0021] 250. Grinding components;

[0022] 211. First motor; 212. First mounting base; 213. Second mounting base; 214. First lead screw transmission unit; 215. First moving plate;

[0023] 231. Second motor; 232. Third mounting base; 233. Fourth mounting base; 234. Second lead screw transmission unit; 235. Second moving plate;

[0024] 241. Third motor; 242. Third moving plate;

[0025] 251. Fourth motor; 252. Drive wheel; 253. Driven wheel; 254. Transmission belt; 255. Grinding unit; Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] like Figure 1 and Figure 2 As shown, one embodiment provides a triaxial grinding device for metal workpieces, the device including: a rotary working mechanism 100 and a grinding mechanism 200.

[0028] The rotary working mechanism 100 includes a rotary worktable 110 and a fixture fixing assembly 120, which are spaced apart along the circumference of the rotary worktable 110. The rotary worktable 110 is driven by a servo motor and can rotate at a constant speed or intermittently around its central axis. The fixture fixing assemblies 120 are spaced apart along the circumference of the rotary worktable 110. In this embodiment, there are 4 sets, with an included angle of 90° between adjacent sets. Each set of fixture fixing assemblies 120 includes a pneumatic gripper and a positioning pin. The pneumatic gripper can clamp the metal workpiece by air pressure, and the positioning pin is used to pre-position the workpiece to ensure that the workpiece is stable during rotation and avoids displacement.

[0029] The grinding mechanism 200 includes a first linear motion component 210, a support frame 220, a second linear motion component 230, a third linear motion component 240, and a grinding component 250. The first linear motion component 210 is disposed on one side of the rotary table 110, the support frame 220 is disposed on the output end of the first linear motion component 210, the second linear motion component 230 is disposed on the support frame 220, the third linear motion component 240 is disposed on the output end of the second linear motion component 230, and the grinding component 250 is disposed on the output end of the third linear motion component 240.

[0030] During operation, the operator positions the metal workpiece to be ground using the positioning pins of the fixture fixing assembly 120, and then activates the pneumatic grippers to clamp the workpiece, thus fixing it in place. The rotary table 110 rotates at a constant speed under the drive of a servo motor, causing the workpiece to rotate around the central axis of the table, bringing the metal workpiece to be ground below the grinding mechanism 200. The first linear motion assembly 210, the second linear motion assembly 230, and the third linear motion assembly 240 together drive the grinding assembly 250 to move in multiple directions, enabling the grinding assembly 250 to grind the surface of the workpiece.

[0031] The triaxial grinding device for metal workpieces provided in this embodiment can cover all areas of the workpiece surface with the grinding component 250 through multi-directional movement of the grinding component 250, avoiding grinding dead corners and improving the comprehensiveness of grinding.

[0032] like Figure 1 and Figure 2 As shown, in some embodiments, the moving directions of the first linear moving component 210, the second linear moving component 230, and the third linear moving component 240 are perpendicular to each other. Thus, the grinding component 250 can move to any position in space, precisely aligning with any part of the workpiece to be ground.

[0033] like Figure 1 and Figure 2As shown, in some embodiments, the first linear motion assembly 210 includes a first motor 211, a first mounting base 212, a second mounting base 213, a first lead screw transmission unit 214, and a first moving plate 215. The first mounting base 212 and the second mounting base 213 are spaced apart on one side of the rotary table 110. The first lead screw transmission unit 214 is rotatably mounted on the first mounting base 212 and the second mounting base 213. The first moving plate 215 is mounted on the output end of the first lead screw transmission unit 214. The first motor 211 is mounted on one side of the first mounting base 212. The output end of the first motor 211 is connected to the first lead screw transmission unit 214 through a first coupling. The second linear motion assembly 230 is mounted on the first moving plate 215.

[0034] like Figure 1 and Figure 2 As shown, in some embodiments, the second linear motion assembly 230 includes a second motor 231, a third mounting base 232, a fourth mounting base 233, a second lead screw transmission unit 234, and a second moving plate 235. The third mounting base 232 and the fourth mounting base 233 are spaced apart on the support frame 220. The second lead screw transmission unit 234 is rotatably mounted on the third mounting base 232 and the fourth mounting base 233. The second moving plate 235 is mounted on the second lead screw transmission unit 234. The second motor 231 is mounted on the side of the third mounting base 232. The output end of the second motor 231 is connected to the second lead screw transmission unit 234 through a second coupling. The third linear motion assembly 240 is mounted on the second moving plate 235.

[0035] like Figure 1 and Figure 2 As shown, in some embodiments, the third linear motion component 240 includes a third motor 241, a gear, a rack, and a third moving plate 242. The third motor 241 is disposed on the output end of the second linear motion component 230, the gear is sleeved on the output end of the third motor 241, the rack is fixed to the third moving plate 242, the rack meshes with the gear, and the grinding component 250 is disposed on the third moving plate 242.

[0036] like Figure 1 and Figure 2 As shown, in some embodiments, the grinding assembly 250 includes a fourth motor 251, a driving wheel 252, a driven wheel 253, a transmission belt 254, and a grinding unit 255. The fourth motor 251 is located on the output end of the third linear motion assembly 240. There are three grinding units 255, which are spaced apart on the third linear motion assembly 240. One grinding unit 255 is connected to the output end of the fourth motor 251, and the driving wheel 252 is sleeved on the grinding unit 255. There are two driven wheels 253, which are respectively sleeved on the other two grinding units 255. The transmission belt 254 is connected to the driving wheel 252 and the driven wheel 253.

[0037] The grinding unit 255 may include a bearing, a spindle, a tool holder, and a grinding head. The bearing is located on the output end of the third linear motion component 240. The spindle passes through the bearing. The end of the spindle near the fourth motor 251 is connected to the driving wheel 252 or the driven wheel 253. The end of the spindle away from the fourth motor 251 is fitted with a tool holder, and the grinding head is inserted into the tool holder.

[0038] When the grinding assembly 250 moves to the preset position, the fourth motor 251 starts and the output end of the fourth motor 251 rotates, driving the drive wheel 252 to rotate. The drive wheel 252 meshes with the two driven wheels 253 through the transmission belt 254, driving the output shaft of the drive motor of the grinding unit 255 on both sides to rotate synchronously, thereby causing the three grinding heads to rotate synchronously at the same speed, and thus synchronously grinding the surface of the workpiece.

[0039] The grinding assembly 250 only requires one fourth motor 251 to drive the three grinding units 255 to work. The three grinding units 255 work synchronously. Compared with a single grinding unit 255, the grinding area is increased by 3 times, and the grinding time of a single workpiece can be shortened to 1 / 3 of that of traditional devices, which greatly improves production efficiency.

[0040] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0043] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0045] The above are merely preferred embodiments of this application and do not constitute any limitation on this application. Any person skilled in the art can make many possible variations and modifications to the technical solution of this application, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this application. Therefore, all equivalent changes made based on the shape, structure, and principle of this application without departing from the content of the technical solution of this application should be covered within the protection scope of this application.

Claims

1. A three-axis lapping apparatus for metal workpieces, characterized by, The device includes: A rotary working mechanism, comprising a rotary worktable and a fixture fixing assembly, wherein the fixture fixing assembly is spaced apart along the periphery of the rotary worktable; A grinding mechanism, comprising a first linear motion component, a support frame, a second linear motion component, a third linear motion component, and a grinding component. The first linear motion component is disposed on one side of the rotary table, the support frame is disposed on the output end of the first linear motion component, the second linear motion component is disposed on the support frame, the third linear motion component is disposed on the output end of the second linear motion component, and the grinding component is disposed on the output end of the third linear motion component.

2. The metal workpiece tri-axial lapping device of claim 1, wherein, The moving directions of the first linear moving component, the second linear moving component, and the third linear moving component are perpendicular to each other.

3. The metal workpiece tri-axial lapping device of claim 1, wherein, The first linear motion assembly includes a first motor, a first mounting base, a second mounting base, a first lead screw transmission unit, and a first moving plate. The first mounting base and the second mounting base are spaced apart on one side of the rotary table. The first lead screw transmission unit is rotatably mounted on the first mounting base and the second mounting base. The first moving plate is mounted on the output end of the first lead screw transmission unit. The first motor is mounted on one side of the first mounting base. The output end of the first motor is connected to the first lead screw transmission unit through a first coupling. The second linear motion assembly is mounted on the first moving plate.

4. The metal workpiece tri-axial lapping device of claim 1, wherein, The second linear motion assembly includes a second motor, a third mounting base, a fourth mounting base, a second lead screw transmission unit, and a second moving plate. The third and fourth mounting bases are spaced apart on the support frame. The second lead screw transmission unit is rotatably mounted on the third and fourth mounting bases. The second moving plate is mounted on the second lead screw transmission unit. The second motor is located on the side of the third mounting base. The output end of the second motor is connected to the second lead screw transmission unit via a second coupling. The third linear motion assembly is mounted on the second moving plate.

5. The metal workpiece tri-axial lapping device of claim 1, wherein, The third linear motion component includes a third motor, a gear, a rack, and a third moving plate. The third motor is located on the output end of the second linear motion component. The gear is sleeved on the output end of the third motor. The rack is fixed to the third moving plate and meshes with the gear. The grinding component is located on the third moving plate.

6. The triaxial grinding apparatus for metal workpieces according to claim 1, characterized in that, The grinding assembly includes a fourth motor, a drive wheel, a driven wheel, a transmission belt, and grinding units. The fourth motor is located on the output end of the third linear motion assembly. There are three grinding units spaced apart on the third linear motion assembly. One grinding unit is connected to the output end of the fourth motor and the drive wheel is mounted on the grinding unit. There are two driven wheels, which are respectively mounted on the other two grinding units. The transmission belt is connected to the drive wheel and the driven wheel.

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