A gantry type grinding and polishing mechanism
Patent Information
- Application Number
- CN202522373483.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-07
AI Technical Summary
[0005]本实用新型克服了现有技术的不足，提出一种龙门式磨抛机构，其结构设计合理，通过设置多向移动的龙门架使得夹具单元相对磨抛轮靠近或远离，改变了传动对磨抛轮进行竖直方向驱动的方案，解决了传统举升机构占用空间较大以及检修不便的问题
[0007]通过采用上述技术方案，通过在工作台上设置龙门架，龙门架可以在第二水平方向上相对工作台滑动，并且夹具单元可沿竖直方向相对龙门架滑动，而磨抛轮是在第一水平方向往复移动的，在对水晶坯件磨抛加工时，磨抛轮在竖直方向是不动，随着驱动龙门架使得夹具单元在竖直方向和第二水平方向上移动，从而靠近磨抛轮，通过磨抛轮的转动来对水晶坯件进行磨抛加工。如此，通过设置多向移动的龙门架使得夹具单元相对磨抛轮靠近或远离，改变了传动对磨抛轮进行竖直方向驱动的方案，解决了传统举升机构占用空间较大以及检修不便的问题，且龙门架在第二水平方向滑动不仅可以实现夹具在工作位置和取装位置之间的位置切换，也具有驱动夹具单元在磨抛工作时在第二水平方向靠近或远离磨抛轮的用途。
Smart Images
Figure CN224795365U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diamond grinding and polishing equipment technology, and more specifically, to a gantry-type grinding and polishing mechanism. Background Technology
[0002] Existing crystal blank polishing systems typically include loading and unloading mechanisms, polishing mechanisms, docking mechanisms, and material transfer mechanisms. The polishing mechanism usually has multiple polishing stations, such as the first polishing station, the second polishing station, etc. Each polishing station is equipped with a polishing mechanism for polishing the crystal blank.
[0003] Current polishing mechanisms typically consist of a polishing wheel and a fixture base with clamps. The clamps can rotate within the fixture base to align the workpiece's surface to be polished with the polishing wheel. The fixture base can move back and forth, allowing the fixture to switch between a working position and a loading / unloading position. When the fixture is in the loading / unloading position, a material handling robot will move the fixture to the next station. The polishing wheel moves up and down via a lifting mechanism and swings left and right via a swinging mechanism, achieving multi-dimensional motion.
[0004] The shortcomings of the existing grinding and polishing mechanism are that the lifting mechanism needs to lift the grinding and polishing wheel and is located below the grinding and polishing wheel, which results in a large space occupation of the components and inconvenience for maintenance; moreover, the back and forth movement of the clamp seat is only for switching the position of the clamp, and its application and function need to be expanded. Utility Model Content
[0005] This invention overcomes the shortcomings of the prior art and proposes a gantry-type grinding and polishing mechanism with a reasonable structural design. By setting up a multi-directional movable gantry frame, the clamping unit can move closer to or further away from the grinding and polishing wheel, changing the transmission scheme that drives the grinding and polishing wheel in the vertical direction. This solves the problems of large space occupation and inconvenient maintenance of traditional lifting mechanisms.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A gantry-type grinding and polishing mechanism includes a worktable, a grinding and polishing unit mounted on the worktable and equipped with a grinding and polishing wheel, and a clamping unit corresponding to the grinding and polishing wheel. The grinding and polishing wheel can be reciprocated relative to the worktable in a first horizontal direction. A gantry frame is mounted on the worktable. The grinding and polishing unit is located between the gantry frame and the worktable. The gantry frame is slidably mounted relative to the worktable in a second horizontal direction, which is perpendicular to the first horizontal direction. The clamping unit is mounted on the gantry frame and is slidably mounted relative to the gantry frame in a vertical direction.
[0007] By adopting the above technical solution, a gantry frame is set on the worktable. The gantry frame can slide relative to the worktable in the second horizontal direction, and the fixture unit can slide relative to the gantry frame in the vertical direction. The polishing wheel reciprocates in the first horizontal direction. When polishing the crystal blank, the polishing wheel is stationary in the vertical direction. As the gantry frame is driven, the fixture unit moves in both the vertical and second horizontal directions, thus approaching the polishing wheel. The rotation of the polishing wheel then polishes the crystal blank. In this way, by setting a multi-directionally moving gantry frame, the fixture unit can move closer to or further away from the polishing wheel, changing the traditional method of vertically driving the polishing wheel. This solves the problems of large space occupation and inconvenient maintenance of traditional lifting mechanisms. Furthermore, the sliding of the gantry frame in the second horizontal direction not only allows for the switching of the fixture between the working position and the loading / unloading position, but also serves to drive the fixture unit to move closer to or further away from the polishing wheel in the second horizontal direction during polishing operations.
[0008] Preferably, at least one grinding and polishing unit is provided on the worktable, and the gantry frame can slide to the position of the clamping unit corresponding to each grinding and polishing unit.
[0009] By adopting the above technical solution, specifically, two or three different numbers of grinding and polishing units can be set on the worktable. Taking two grinding and polishing units as an example, the first grinding and polishing and the second grinding and polishing of the crystal blank can be realized. Multiple grinding and polishing processes can be carried out by driving the gantry frame to slide. Compared with the traditional solution of setting multiple grinding and polishing mechanisms and transferring the fixtures through a material transfer mechanism (such as mechanical grippers), there is no need to perform multiple operations of loosening and clamping the fixtures to the fixture seat, which improves work efficiency and reduces the equipment footprint.
[0010] Preferably, the polishing unit further includes a polishing frame and a polishing base. The polishing frame is mounted on a workbench, the polishing base is mounted on the polishing frame, and the polishing wheel is mounted on the polishing base. The polishing frame is equipped with a rotary motor that drives the polishing wheel to rotate. The polishing frame is also equipped with a reciprocating moving assembly that drives the polishing base and polishing wheel to reciprocate in a first horizontal direction. A first guide rail slider structure is provided between the polishing base and the polishing frame. The polishing base has a first inclined surface corresponding to the position of the first guide rail slider structure, and the polishing frame has a first mating surface inclinedly corresponding to the position of the first guide rail slider structure. The first guide rail slider structure is inclinedly positioned and located between the first inclined surface and the first mating surface. The reciprocating moving assembly includes a drive motor, a first connecting sleeve eccentrically connected to the output end of the drive motor, a connecting rod connected to the first connecting sleeve, and a second connecting sleeve mounted on the connecting rod and connected to the polishing base.
[0011] By adopting the above technical solution, the rotary motor can drive the polishing base to rotate via a pulley structure, while the reciprocating moving component can drive the polishing base and polishing wheel to reciprocate relative to the polishing machine frame in the first horizontal direction. Specifically, by tilting the first guide rail slider structure—where the guide rail can be on the first mating surface and the slider on the first inclined surface, or vice versa—the purpose of this arrangement is to ensure that, under the influence of gravity, the sides of the guide rail and slider slide in close contact, preventing large gaps between them. This reduces the likelihood of dust generated during polishing entering these gaps and causing damage to the guide rail slider or obstructing its sliding.
[0012] Preferably, the gantry includes two vertical arms and a crossbeam connecting the two vertical arms. Both vertical arms are slidably mounted on the worktable. The clamping unit is slidably mounted on the two vertical arms. A second guide rail slider structure is provided between the two vertical arms and the worktable. A third guide rail slider structure is provided between the clamping unit and the two vertical arms. A horizontal slide is fixedly mounted at the bottom of each vertical arm. A first motor screw structure for driving the horizontal slide is provided on the worktable. A second inclined surface is provided on the horizontal slide corresponding to the position of the second guide rail slider structure. A second mating surface is provided on the worktable at an incline corresponding to the position of the second guide rail slider structure. The second guide rail slider structure is inclined and located between the second inclined surface and the second mating surface. A vertical slide is provided on one side of each vertical arm corresponding to the clamping unit. A second motor screw structure for driving the vertical slide is provided on the gantry. The clamping unit is mounted on the vertical slide. The third guide rail slider structure is inclined and located between the vertical slide and the vertical arm.
[0013] By adopting the above technical solution, the horizontal slide is driven by the first motor lead screw structure, and the vertical slide is driven by the second motor lead screw structure. The inclined setting of the second guide rail slider structure is the same as that of the first guide rail slider structure, which also reduces the dust generated during grinding and polishing from entering the side gap between the guide rail and the slider, causing damage to the guide rail slider and obstructing the sliding.
[0014] Preferably, the outer sides of the first guide rail slider structure, the second guide rail slider structure, the third guide rail slider structure, the first motor lead screw structure, and the second motor lead screw structure are all covered with protective covers.
[0015] By adopting the above technical solution, the protective cover can prevent dust from entering, and the protective cover also provides safety during production.
[0016] Preferably, the fixture unit includes a fixture frame, a fixture base, and a fixture mounted on the fixture base. The fixture frame is provided with a flipping component that drives the fixture base to flip. The fixture frame is fixedly connected to a vertical slide.
[0017] By adopting the above technical solution, specifically, the fixture unit is fixed on the vertical slide by the fixture frame, thereby realizing the up and down sliding of the fixture unit. The setting of the flipping component can drive the fixture seat to flip as a whole, so that the crystal blank on the fixture can be in the accurate processing position relative to the polishing wheel. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a specific embodiment of the present utility model. Figure 2 ; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram illustrating the structure of the grinding and polishing unit according to a specific embodiment of the present invention; Figure 5 This is a partial structural diagram illustrating the structure of the first guide rail slider in a specific embodiment of this utility model; Figure 6 This is a schematic diagram of another specific embodiment of the present utility model; Figure 7 This is a schematic diagram illustrating the structure of the clamping unit in a specific embodiment of the present invention.
[0019] In the diagram: a) First horizontal direction; b) Second horizontal direction; c) Vertical direction; 1. Workbench; 11. First motor lead screw structure; 12. Second mating surface; 13. Protective cover; 2. Grinding and polishing unit; 21. Grinding and polishing wheel; 22. Grinding and polishing machine frame; 221. Rotating motor; 222. First mating surface; 23. Grinding and polishing seat; 231. First inclined surface; 3. Fixture unit; 31. Fixture frame; 311. Tilting assembly; 32. Fixture seat; 33. Fixture; 4. Gantry frame; 41. Vertical arm; 42. Crossbeam; 43. Horizontal slide; 431. Second inclined surface; 44. Vertical slide; 45. Second motor lead screw structure; 5. Reciprocating movement assembly; 51. Drive motor; 52. First connecting sleeve; 53. Connecting rod; 54. Second connecting sleeve; 6. First guide rail slider structure; 7. Second guide rail slider structure; 8. Third guide rail slider structure. Detailed Implementation
[0020] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0022] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0023] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0024] like Figure 1-7 As shown, a gantry-type grinding and polishing mechanism includes a worktable 1, a grinding and polishing unit 2 with a grinding and polishing wheel 21 disposed on the worktable 1, and a clamping unit 3 corresponding to the grinding and polishing wheel 21. The grinding and polishing wheel 21 can be reciprocated relative to the worktable 1 in a first horizontal direction a. A gantry frame 4 is disposed on the worktable 1. The grinding and polishing unit 2 is located between the gantry frame 4 and the worktable 1. The gantry frame 4 is slidably disposed relative to the worktable 1 in a second horizontal direction b, which is perpendicular to the first horizontal direction a. The clamping unit 3 is disposed on the gantry frame 4 and is slidably disposed relative to the gantry frame 4 in a vertical direction c.
[0025] By adopting the above technical solution, a gantry frame 4 is set on the workbench 1. The gantry frame 4 can slide relative to the workbench 1 in the second horizontal direction b, and the clamping unit 3 can slide relative to the gantry frame 4 in the vertical direction c. The polishing wheel 21 reciprocates in the first horizontal direction a. When polishing the crystal blank, the polishing wheel 21 is stationary in the vertical direction c. As the gantry frame 4 is driven, the clamping unit 3 moves in the vertical direction c and the second horizontal direction b, thereby approaching the polishing wheel 21. The polishing wheel 21 is rotated to polish the crystal blank. Thus, by setting up a multi-directional movable gantry 4, the clamping unit 3 can move closer to or further away from the polishing wheel 21, changing the scheme of vertically driving the polishing wheel 21 through the transmission. This solves the problems of large space occupation and inconvenient maintenance of traditional lifting mechanisms. Furthermore, the sliding of the gantry 4 in the second horizontal direction b not only enables the clamping 33 to switch between the working position and the loading / unloading position, but also has the purpose of driving the clamping unit 3 to move closer to or further away from the polishing wheel 21 in the second horizontal direction b during polishing operations.
[0026] At least one polishing unit 2 is provided on the workbench 1, and the gantry frame 4 can slide to the position of the clamping unit 3 corresponding to each polishing unit 2. Specifically, the workbench 1 can be provided with two, three, or other different numbers of polishing units 2. Taking two polishing units 2 as an example, the first polishing and second polishing of the crystal blank can be realized. Multiple polishing processes can be carried out by driving the gantry frame 4 to slide. Compared with the traditional scheme of setting multiple polishing mechanisms and transferring the clamp 33 through the material transfer mechanism (such as mechanical grippers), there is no need to perform multiple opening and closing operations of the clamp 33 on the clamping seat 32, which improves work efficiency and reduces the equipment footprint.
[0027] Furthermore, the polishing unit 2 also includes a polishing frame 22 and a polishing base 23. The polishing frame 22 is mounted on the workbench 1, the polishing base 23 is mounted on the polishing frame 22, and the polishing wheel 21 is mounted on the polishing base 23. A rotary motor 221 for driving the polishing wheel 21 is mounted on the polishing frame 22. A reciprocating moving assembly 5 for driving the polishing base 23 and the polishing wheel 21 to reciprocate in the first horizontal direction a is also mounted on the polishing frame 22. A first guide rail slider structure 6 is provided between the polishing base 23 and the polishing frame 22. A first inclined surface 231 is provided corresponding to the position of the first guide rail slider structure 6. A first mating surface 222 is provided on the grinding and polishing frame 22 at an incline corresponding to the position of the first guide rail slider structure 6. The first guide rail slider structure 6 is inclined and located between the first inclined surface 231 and the first mating surface 222. The reciprocating moving component 5 includes a drive motor 51, a first connecting sleeve 52 eccentrically connected to the output end of the drive motor 51, a connecting rod 53 connected to the first connecting sleeve 52, and a second connecting sleeve 54 provided on the connecting rod 53 and connected to the grinding and polishing seat 23. Specifically, the rotating motor 221 can drive the grinding and polishing seat 23 to rotate through a pulley structure, while the reciprocating moving component 5 can drive the grinding and polishing seat 23 and the grinding and polishing wheel 21 to reciprocate relative to the grinding and polishing frame 22 in the first horizontal direction a. Specifically, by tilting the first guide rail slider structure 6, the guide rail can be on the first mating surface 222 and the slider can be on the first inclined surface 231, or vice versa. The purpose of this arrangement is to ensure that the sides of the guide rail and the slider slide in close contact under the action of gravity, so that there is no large gap between the sides of the guide rail and the slider, thereby reducing the possibility of dust generated during polishing entering the gap and causing damage to the guide rail slider and obstruction of sliding.
[0028] Furthermore, the gantry frame 4 includes two vertical arms 41 and a crossbeam 42 connecting the two vertical arms 41. Both vertical arms 41 are slidably mounted on the worktable 1. The clamping unit 3 is slidably mounted on the two vertical arms 41. A second guide rail slider structure 7 is provided between the two vertical arms 41 and the worktable 1, and a third guide rail slider structure 8 is provided between the clamping unit 3 and the two vertical arms 41. A horizontal slide block 43 is fixedly mounted at the bottom of each vertical arm 41. A first motor screw structure 11 for driving the horizontal slide block 43 to slide is provided on the worktable 1. The horizontal slide block 43 corresponds to the second guide rail slider. The block structure 7 has a second inclined surface 431. The worktable 1 has a second mating surface 12 inclinedly positioned corresponding to the second guide rail slider structure 7. The second guide rail slider structure 7 is inclined and located between the second inclined surface 431 and the second mating surface 12. Each vertical arm 41 has a vertical slide 44 on one side corresponding to the clamping unit 3. The gantry 4 has a second motor screw structure 45 for driving the vertical slide 44 to slide. The clamping unit 3 is mounted on the vertical slide 44. The third guide rail slider structure 8 is inclined and located between the vertical slide 44 and the vertical arm 41. The horizontal slide 43 is driven by the first motor screw structure 11, and the vertical slide 44 is driven by the second motor screw structure 45. The inclined setting of the second guide rail slider structure 7 is similar to that of the first guide rail slider structure 6, which also reduces the risk of dust generated during polishing entering the side gap between the guide rail and the slider, causing damage and obstruction to the guide rail and slider.
[0029] The outer sides of the first guide rail slider structure 6, the second guide rail slider structure 7, the third guide rail slider structure 8, the first motor lead screw structure 11, and the second motor lead screw structure 45 are all covered with protective covers 13. The protective covers 13 can prevent dust from entering, and due to the covering effect of the protective covers 13, they also provide safety during production.
[0030] In addition, the fixture unit 3 includes a fixture frame 31, a fixture base 32, and a fixture 33 mounted on the fixture base 32. The fixture frame 31 is provided with a flipping component 311 that drives the fixture base 32 to flip. The fixture frame 31 is fixedly connected to the vertical slide 44. Specifically, the fixture unit 3 is fixed to the vertical slide 44 by the fixture frame 31, thereby realizing the up and down sliding of the fixture unit 3. The flipping component 311 can drive the fixture base 32 to flip as a whole, so that the crystal blank on the fixture 33 can be in the accurate processing position relative to the polishing wheel 21.
[0031] 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 gantry-type grinding and polishing mechanism, comprising a worktable (1), a grinding and polishing unit (2) disposed on the worktable (1) and having a grinding and polishing wheel (21), and a clamping unit (3) corresponding to the grinding and polishing wheel (21), wherein the grinding and polishing wheel (21) is reciprocally movable relative to the worktable (1) in a first horizontal direction (a), characterized in that, A gantry frame (4) is provided on the workbench (1). The grinding and polishing unit (2) is located between the gantry frame (4) and the workbench (1). The gantry frame (4) is slidably arranged relative to the workbench (1) along the second horizontal direction (b). The second horizontal direction (b) is perpendicular to the first horizontal direction (a). The clamping unit (3) is arranged on the gantry frame (4). The clamping unit (3) is slidably arranged relative to the gantry frame (4) along the vertical direction (c).
2. The gantry-type grinding and polishing mechanism according to claim 1, characterized in that, At least one grinding and polishing unit (2) is provided on the worktable (1), and the gantry frame (4) can slide to the position of the clamping unit (3) corresponding to each grinding and polishing unit (2).
3. A gantry-type grinding and polishing mechanism according to claim 1 or 2, characterized in that, The polishing unit (2) also includes a polishing frame (22) and a polishing base (23). The polishing frame (22) is mounted on the workbench (1), the polishing base (23) is mounted on the polishing frame (22), and the polishing wheel (21) is mounted on the polishing base (23). A rotary motor (221) for driving the polishing wheel (21) to rotate is mounted on the polishing frame (22). A mechanism for driving the polishing base (23) and the polishing wheel (21) to reciprocate in the first horizontal direction (a) is also mounted on the polishing frame (22). A first guide rail slider structure (6) is provided between the reciprocating moving component (5), the polishing base (23) and the polishing machine frame (22). A first inclined surface (231) is provided on the polishing base (23) corresponding to the position of the first guide rail slider structure (6). A first mating surface (222) is provided on the polishing machine frame (22) corresponding to the position of the first guide rail slider structure (6). The first guide rail slider structure (6) is inclined and located between the first inclined surface (231) and the first mating surface (222).
4. A gantry-type grinding and polishing mechanism according to claim 3, characterized in that, The reciprocating moving assembly (5) includes a drive motor (51), a first connecting sleeve (52) eccentrically connected to the output end of the drive motor (51), a connecting rod (53) connected to the first connecting sleeve (52), and a second connecting sleeve (54) disposed on the connecting rod (53) and connected to the polishing seat (23).
5. A gantry-type grinding and polishing mechanism according to claim 3, characterized in that, The gantry (4) includes two vertical arms (41) and a crossbeam (42) connecting the two vertical arms (41). Both vertical arms (41) are slidably mounted on the worktable (1). The clamping unit (3) is slidably mounted on the two vertical arms (41). A second guide rail slider structure (7) is provided between the two vertical arms (41) and the worktable (1). A third guide rail slider structure (8) is provided between the clamping unit (3) and the two vertical arms (41).
6. A gantry-type grinding and polishing mechanism according to claim 5, characterized in that, Each vertical arm (41) has a fixed horizontal slide (43) at its bottom. The worktable (1) is provided with a first motor screw structure (11) that drives the horizontal slide (43) to slide. The horizontal slide (43) has a second inclined surface (431) at the position corresponding to the second guide rail slider structure (7). The worktable (1) has a second mating surface (12) at the position corresponding to the second guide rail slider structure (7). The second guide rail slider structure (7) is inclined and located between the second inclined surface (431) and the second mating surface (12).
7. A gantry-type grinding and polishing mechanism according to claim 6, characterized in that, Each vertical arm (41) is provided with a vertical slide (44) on one side of the fixture unit (3). The gantry frame (4) is provided with a second motor screw structure (45) for driving the vertical slide (44) to slide. The fixture unit (3) is set on the vertical slide (44). The third guide rail slider structure (8) is inclined and located between the vertical slide (44) and the vertical arm (41).
8. A gantry-type grinding and polishing mechanism according to claim 7, characterized in that, The first guide rail slider structure (6), the second guide rail slider structure (7), the third guide rail slider structure (8), the first motor lead screw structure (11), and the second motor lead screw structure (45) are all covered with protective covers (13).
9. A gantry-type grinding and polishing mechanism according to claim 7, characterized in that, The fixture unit (3) includes a fixture frame (31), a fixture seat (32), and a fixture (33) mounted on the fixture seat (32). The fixture frame (31) is provided with a flipping component (311) for driving the fixture seat (32) to flip. The fixture frame (31) is fixedly connected to the vertical slide (44).