Straight repairing disc structure of double-sided thinning grinding equipment

Abstract

The utility model relates to a straight repairing disc structure of double-sided thinning grinding equipment. The straight repairing disc structure comprises a grinding wheel, the device comprises a workbench, the workbench is provided with a lead screw assembly, the lead screw assembly comprises a base and a lead screw body installed on the base, a driving mechanism is installed on one side of the workbench, and an output shaft of the driving mechanism is in transmission connection with one end of the lead screw body through a transmission part; the trimming assembly comprises a first bearing seat installed on the lead screw body and an installation seat installed on the first bearing seat, and a supporting rod coaxial with the lead screw body and parallel to the lead screw body is arranged on one side of the installation seat. According to the grinding wheel trimming device, the lead screw assembly and the driving assembly are arranged and matched with the bearing seat and the mounting plate, a traditional swing arm type trimming disc structure is changed into a linear reciprocating type trimming disc structure, and therefore the phenomenon that the inner circle is high and the outer circle is low when a grinding wheel is trimmed is avoided.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel dressing technology, specifically a radial dressing structure for a double-sided thinning grinding device. Background Technology

[0002] The evolution of mobile phones and the ever-increasing demands have led to continuous improvements in the processing dimensions and precision of microcrystalline glass, which in turn places higher demands on processing equipment. The precision of the grinding wheel surface after dressing directly affects the processing precision of microcrystalline glass, so the surface flatness of the grinding wheel is very important when processing products.

[0003] Some existing swing-arm dressing structures, when performing rotary dressing, are limited by their swing-arm structure. This requires the swing-arm to move back and forth during the dressing process, resulting in an uneven grinding surface. Typically, the inner circumference of the grinding wheel is higher than the outer circumference, resulting in a concave arc surface. This leads to poor surface flatness and significant thickness variations in the processed products. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a radial dressing structure for a double-sided thinning grinding equipment, which solves the technical problems of poor dressing flatness and thickness in existing swing arm dressing structures.

[0005] This utility model discloses a radial dressing structure for a double-sided thinning grinding equipment, comprising: a grinding wheel; a worktable, wherein a lead screw assembly is provided on the worktable, the lead screw assembly includes a base and a lead screw body mounted on the base, a drive mechanism is installed on one side of the worktable, and the output shaft of the drive mechanism is connected to one end of the lead screw body through a transmission component;

[0006] The dressing assembly includes a first bearing seat mounted on the lead screw body and a mounting seat mounted on the first bearing seat. A support rod coaxial with and parallel to the lead screw body is provided on one side of the mounting seat, and an oilstone for grinding the grinding wheel is provided at the end of the support rod away from the first bearing seat.

[0007] As a further improvement of this utility model, a second bearing seat and a third bearing seat are respectively installed on the base near both ends of the lead screw body. Both ends of the lead screw body are connected to the second bearing seat and the third bearing seat respectively. One end of the lead screw body protrudes from the side of the second bearing seat away from the third bearing seat and is connected to the transmission component.

[0008] As a further improvement of this utility model, the base is fixedly connected with multiple mounting plates, and an adjustment component is provided between the multiple mounting plates and the workbench. The adjustment component is used to support and adjust the horizontal height of the base.

[0009] As a further improvement of this utility model, the adjustment assembly includes an adjustment shaft and a fixed plate. The fixed plate is threadedly connected to the workbench by multiple bolts. One end of the adjustment shaft is connected to the middle of the upper surface of the fixed plate by a bearing. The other end of the adjustment shaft passes through the mounting plate and protrudes from the upper surface of the mounting plate. Spherical washers are fitted on both the upper and lower surfaces of the mounting plate and lock nuts are threadedly connected to them.

[0010] As a further improvement of this utility model, the mounting base includes a base plate and a side plate, the base plate and the side plate are arranged perpendicular to each other, the middle part of the base plate is connected and fixed to the first bearing seat, and one end of the support rod passes vertically through the side plate and is connected and fixed to the base plate through a fixing plate.

[0011] As a further improvement of this utility model, a limiting slider is provided on the side of the base plate near the base, and a limiting slot is provided on the side of the limiting slider facing away from the base plate. A limiting guide rail is provided on the base at the position corresponding to the limiting slider. The limiting slider is slidably connected to the limiting guide rail through the limiting slot. When the mounting base makes linear movement, it is limited by the limiting slider and the limiting guide rail.

[0012] As a further improvement of this utility model, a limiting frame is provided at the end of the support rod away from the mounting base. The limiting frame is used to fix the oilstone for grinding to the end of the support rod. The limiting frame is U-shaped and is connected and fixed to the end of the support rod by multiple bolts on the side close to the support rod. The U-shaped opening of the limiting frame faces away from the support rod. A clamp is connected to the U-shaped opening of the limiting frame by bolts. The oilstone is fixed in the U-shaped groove of the limiting frame by the clamp. After the oilstone is fixed, both the top and bottom ends protrude from the outer surface of the limiting frame.

[0013] As a further improvement of this utility model, a water baffle is fitted on the outer surface of the support rod near the limiting frame. The diameter of the water baffle is larger than the diameter of the support rod, and a sealing ring is provided on the edge of the water baffle near the limiting frame.

[0014] As a further improvement of this utility model, a support plate is provided on one side of the workbench near the drive mechanism. The support plate is vertically arranged and perpendicular to the workbench. A through hole is provided on the support plate for the output shaft of the drive mechanism to extend out. The end of the lead screw body protrudes from the outer side of the support plate and is located on the same axis as the through hole. The transmission component is located on the side of the support plate away from the drive mechanism.

[0015] As a further improvement of this utility model, the transmission component includes two synchronous pulleys and a transmission belt. The two synchronous pulleys are respectively installed at one end of the lead screw body and the end of the output shaft of the drive mechanism, and the transmission belt is sleeved on the outer surface of the two synchronous pulleys.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In this invention, the traditional swing-arm dressing structure is transformed into a linear reciprocating dressing structure by using a lead screw assembly and a drive assembly, along with a bearing seat and a mounting plate. This avoids the phenomenon of the inner circle being higher than the outer circle when dressing the grinding wheel. Simultaneously, the limiting guide rail and limiting slider on the base ensure stability during linear reciprocating motion, improving the machining accuracy of the grinding wheel. Furthermore, the adjustment assembly on the base effectively adjusts the level of the oilstone, resulting in better grinding of the grinding wheel. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall front sectional view of the present invention;

[0021] Figure 3 This is a top view of the overall structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the overall side view structure of this utility model;

[0023] Figure 5 This is a frontal cross-sectional view of the adjustment component of this utility model.

[0024] In the diagram: 1. Workbench; 11. Grinding wheel; 2. Lead screw assembly; 21. Base; 22. Lead screw body; 23. Limiting guide rail; 24. Second bearing seat; 25. Third bearing seat; 3. Adjusting assembly; 31. Fixing plate; 32. Adjusting shaft; 33. Locking nut; 34. Spherical washer; 4. Dressing assembly; 41. Mounting seat; 42. Limiting slider; 43. Support rod; 44. Water baffle; 45. Limiting frame; 46. Oilstone; 47. First bearing seat; 411. Base plate; 412. Side plate; 413. Fixing plate; 421. Limiting slot; 451. Clamping plate; 5. Drive mechanism; 51. Support plate; 52. Transmission component; 511. Through hole; 521. Transmission belt; 522. Synchronous pulley. Detailed Implementation

[0025] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0028] Furthermore, the technical solutions of the various embodiments 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.

[0029] Please see Figure 1-5The present invention relates to a double-sided thinning grinding equipment with a radial dressing disc structure, comprising: a grinding wheel 11; a worktable 1, on which a lead screw assembly 2 is provided, the lead screw assembly 2 including a base 21 and a lead screw body 22 mounted on the base 21, a drive mechanism 5 mounted on one side of the worktable 1, and the output shaft of the drive mechanism 5 being connected to one end of the lead screw body 22 via a transmission component 52.

[0030] Dressing assembly 4 includes a first bearing seat 47 mounted on the lead screw body 22 and a mounting seat 41 mounted on the first bearing seat 47. A support rod 43 coaxial and parallel to the lead screw body 22 is provided on one side of the mounting seat 41. An oilstone 46 for grinding the grinding wheel 11 is provided at the end of the support rod 43 away from the first bearing seat 47.

[0031] In this embodiment, the base 21 can be made of cast iron or steel load-bearing structure, and the lead screw body 22 is preferably a ball screw; the transmission component 52 can be a power transmission element such as a belt, chain, or coupling; the oilstone 46 refers to a dressing tool made of silicon carbide or diamond abrasive; the first bearing seat 47 refers to a support body equipped with rolling bearings or sliding bearings. The output shaft of the drive mechanism 5 is connected to one end of the lead screw body 22 through the transmission component 52, specifically by direct connection with a coupling or by speed change transmission through a pulley set. The end of the support rod 43 away from the first bearing seat 47 is provided with an oilstone 46 for grinding the grinding wheel 11. The support rod 43 extends axially to form a cantilever structure, and the end is rigidly fixed with the oilstone 46 to form a dressing head. The length of this cantilever must ensure that the oilstone 46 can contact the working surface of the grinding wheel 11. The dressing component 4 is driven to move linearly by the lead screw, so that the oilstone 46 is fed radially along the grinding wheel 11 for dressing.

[0032] Please see Figure 1 and Figure 5 In this embodiment, a second bearing seat 24 and a third bearing seat 25 are respectively installed on the base 21 near the two ends of the lead screw body 22. The two ends of the lead screw body 22 are respectively connected to the second bearing seat 24 and the third bearing seat 25. One end of the lead screw body 22 protrudes from the side of the second bearing seat 24 away from the third bearing seat 25 and is connected to the transmission component 52.

[0033] The second bearing housing 24 and the third bearing housing 25 refer to the bearing support structures located at both ends of the lead screw body 22. Angular contact ball bearings or tapered roller bearings can be used. The two ends of the lead screw are respectively assembled into the second and third bearing housings 25. Specifically, a stepped journal can be machined at the end of the lead screw to interfere with the inner ring of the bearing, and the outer ring of the bearing can be pressed into the bearing housing bore. The fact that one end of the lead screw body 22 protrudes from the second bearing housing 24 away from the third bearing housing 25 indicates that the transmission-side bearing housing has an extension, providing sufficient assembly space at the protruding end of the lead screw. Compared to single-point support, the double bearing housing support structure significantly improves the rigidity of the lead screw system, reduces vibration and axial movement during transmission, and ensures the stability of the dressing feed.

[0034] The base 21 is fixedly connected to multiple mounting plates. An adjustment assembly 3 is provided between the multiple mounting plates and the worktable 1. The adjustment assembly 3 is used to support and adjust the horizontal height of the base 21. The adjustment assembly 3 includes an adjustment shaft 32 and a fixed plate 31. The fixed plate 31 is threadedly connected to the worktable 1 by multiple bolts. One end of the adjustment shaft 32 is connected to the middle of the upper surface of the fixed plate 31 by a bearing. The other end of the adjustment shaft 32 passes through the mounting plate and protrudes from the upper surface of the mounting plate. Spherical washers 34 are fitted on the upper and lower surfaces of the mounting plate and are threadedly connected to locking nuts 33.

[0035] The mounting plate can be a welded steel plate with threaded holes; the adjusting assembly 3 refers to a leveling device containing a screw lifting mechanism. The mounting plate is fixed to the bottom surface of the base 21 by bolts. The adjusting shaft 32 of the adjusting assembly 3 passes through the screw holes of the mounting plate, and the height of each support point of the base 21 is changed by rotating the adjusting shaft 32. Multiple mounting plates are provided with adjusting assemblies 3, which refer to at least three leveling support points symmetrically arranged at the four corners of the base 21, forming a stable three-point support leveling system. This structure allows for precise adjustment of the levelness of the screw assembly 2, eliminates equipment assembly errors, and ensures the straightness of the trimming trajectory, significantly improving the adaptability of equipment installation compared to the fixed support method; the adjusting shaft 32 is a precision screw with external threads; the fixed plate 31 is a circular base plate with a central bearing seat; the spherical washer 34 refers to an anti-loosening washer with a spherical contact surface. The lower end of the adjusting shaft 32 is connected to the fixed plate 31 through a thrust ball bearing, and the upper end passes through the mounting plate and is fixed by clamping the spherical washer 34 with two locking nuts 33. Rotating the adjusting shaft 32 can drive the mounting plate to move up and down. Spherical washers 34 are fitted on both the upper and lower surfaces of the mounting plate to form a bidirectional spherical contact, compensating for the angular deviation between the mounting plate and the adjusting shaft 32.

[0036] Please see Figure 1 and Figure 2It should be noted that the mounting base 41 includes a base plate 411 and a side plate 412. The base plate 411 and the side plate 412 are arranged perpendicular to each other. The middle part of the base plate 411 is connected and fixed to the first bearing seat 47. One end of the support rod 43 passes vertically through the side plate 412 and is connected and fixed to the base plate 411 through the fixing plate 413. This design makes the support rod 43 more firmly connected to the base plate 411 and the side plate 412 through the reinforcement of the fixing plate 413.

[0037] A limiting slider 42 is provided on the side of the base plate 411 near the base 21. A limiting slot 421 is provided on the side of the limiting slider 42 facing away from the base plate 411. A limiting guide rail 23 is provided on the base 21 at the position corresponding to the limiting slider 42. The limiting slider 42 is slidably connected to the limiting guide rail 23 through the limiting slot 421. When the mounting base 41 makes linear movement, it is limited by the limiting slider 42 and the limiting guide rail 23. This design further enhances the stability of the mounting base 41 when it moves. The limiting slot 421 can slide along the limiting guide rail 23, but it cannot disengage from the limiting guide rail 23 in the vertical direction. It can only slide off along the end of the guide rail.

[0038] A limiting frame 45 is provided at the end of the support rod 43 away from the mounting base 41. The limiting frame 45 is used to fix the grinding stone 46 to the end of the support rod 43. The limiting frame 45 is U-shaped and is connected and fixed to the end of the support rod 43 by multiple bolts on the side close to the support rod 43. The U-shaped opening of the limiting frame 45 faces away from the support rod 43. A clamping plate 451 is connected to the U-shaped opening of the limiting frame 45 by bolts. The grinding stone 46 is fixed in the U-shaped groove of the limiting frame 45 by the clamping plate 451. After the grinding stone 46 is fixed, both the top and bottom ends protrude from the outer surface of the limiting frame 45.

[0039] A water baffle 44 is fitted on the outer surface of the support rod 43 near the limiting frame 45. The diameter of the water baffle 44 is larger than the diameter of the support rod 43. A sealing ring is provided on the edge of the water baffle 44 near the limiting frame 45. The grinding wheel 11 will spray water to cool the grinding area to prevent overheating during grinding. The design of the water baffle 44 can effectively shield the outer surface of the lead screw body 22 and prevent the cooling water from being directly thrown onto the outer surface of the lead screw body 22 by the grinding wheel 11.

[0040] Please see Figure 1-5 Specifically, a support plate 51 is provided on one side of the workbench 1 near the drive mechanism 5. The support plate 51 is vertically arranged and perpendicular to the workbench 1. A through hole 511 is provided on the support plate 51 for the output shaft of the drive mechanism 5 to extend. The end of the lead screw body 22 protrudes from the outer side of the support plate 51 and is located on the same axis as the through hole 511. The transmission component 52 is located near the side of the support plate 51 away from the drive mechanism 5. One side of the support plate 51 is fixedly connected to the workbench 1, which facilitates the installation and fixing of the drive mechanism 5 and the installation and positioning of the drive mechanism 5 and the transmission component 52. The drive mechanism 5 is a servo motor.

[0041] The transmission component 52 includes two synchronous pulleys 522 and a transmission belt 521. The two synchronous pulleys 522 are respectively installed at one end of the lead screw body 22 and the end of the output shaft of the drive mechanism 5. The transmission belt 521 is sleeved on the outer surface of the two synchronous pulleys 522. This design allows the drive mechanism 5 to better drive the lead screw body 22 to rotate in both directions, thereby better driving the oilstone 46 to perform linear reciprocating motion. Compared with the traditional swing arm grinding method, the linear grinding method effectively avoids the problem of poor flatness caused by the inner high and outer low when grinding the grinding wheel 11.

[0042] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A radial dressing disc structure for a double-sided thinning grinding equipment, characterized in that, include: Grinding wheel (11); A workbench (1) is provided with a lead screw assembly (2). The lead screw assembly (2) includes a base (21) and a lead screw body (22) installed on the base (21). A drive mechanism (5) is installed on one side of the workbench (1). The output shaft of the drive mechanism (5) is connected to one end of the lead screw body (22) through a transmission component (52). The dressing assembly (4) includes a first bearing seat (47) mounted on the lead screw body (22) and a mounting seat (41) mounted on the first bearing seat (47). The mounting seat (41) has a support rod (43) coaxial with and parallel to the lead screw body (22) on one side. The end of the support rod (43) away from the first bearing seat (47) is provided with an oilstone (46) for grinding the grinding wheel (11).

2. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 1, characterized in that: The base (21) is equipped with a second bearing seat (24) and a third bearing seat (25) at the two ends near the lead screw body (22). The two ends of the lead screw body (22) are connected to the second bearing seat (24) and the third bearing seat (25) respectively. One end of the lead screw body (22) protrudes from the side of the second bearing seat (24) away from the third bearing seat (25) and is connected to the transmission component (52) for transmission.

3. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 2, characterized in that: The base (21) is fixedly connected to multiple mounting plates, and an adjustment component (3) is provided between the multiple mounting plates and the worktable (1). The adjustment component (3) is used to support and adjust the horizontal height of the base (21).

4. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 3, characterized in that: The adjustment assembly (3) includes an adjustment shaft (32) and a fixed plate (31). The fixed plate (31) is threadedly connected to the workbench (1) by multiple bolts. One end of the adjustment shaft (32) is connected to the middle of the upper surface of the fixed plate (31) by a bearing. The other end of the adjustment shaft (32) passes through the mounting plate and protrudes from the upper surface of the mounting plate. The adjustment shaft (32) is fitted with spherical washers (34) at both the upper and lower surfaces of the mounting plate and is threadedly connected with locking nuts (33).

5. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 1, characterized in that: The mounting base (41) includes a base plate (411) and a side plate (412). The base plate (411) and the side plate (412) are arranged perpendicular to each other. The middle part of the base plate (411) is connected and fixed to the first bearing seat (47). One end of the support rod (43) passes vertically through the side plate (412) and is connected and fixed to the base plate (411) through a fixing plate (413).

6. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 5, characterized in that: The base plate (411) is provided with a limiting slider (42) on the side near the base (21). The limiting slider (42) has a limiting slot (421) on the side facing away from the base plate (411). The base (21) is provided with a limiting guide rail (23) at the position corresponding to the limiting slider (42). The limiting slider (42) is slidably connected to the limiting guide rail (23) through the limiting slot (421). When the mounting base (41) makes linear movement, it is limited by the limiting slider (42) and the limiting guide rail (23).

7. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 5, characterized in that: The support rod (43) has a limiting frame (45) at one end away from the mounting base (41). The limiting frame (45) is used to fix the polishing oilstone (46) to the end of the support rod (43). The limiting frame (45) is U-shaped and is connected to the end of the support rod (43) by multiple bolts on the side close to the support rod (43). The U-shaped opening of the limiting frame (45) faces away from the support rod (43). A clamp (451) is bolted to the U-shaped opening of the limiting frame (45). The oilstone (46) is fixed in the U-shaped groove of the limiting frame (45) by the clamp (451). After the oilstone (46) is fixed, both the top and bottom ends protrude from the outer surface of the limiting frame (45).

8. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 7, characterized in that: A water baffle (44) is fitted on the outer surface of the support rod (43) near the limiting frame (45). The diameter of the water baffle (44) is larger than the diameter of the support rod (43). A sealing ring is provided on the edge of the water baffle (44) near the limiting frame (45).

9. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 1, characterized in that: A support plate (51) is provided on one side of the worktable (1) near the drive mechanism (5). The support plate (51) is vertically arranged and perpendicular to the worktable (1). A through hole (511) is provided on the support plate (51) for the output shaft of the drive mechanism (5) to extend out. The end of the lead screw body (22) protrudes from the outer side of the support plate (51) and is located on the same axis as the through hole (511). The transmission component (52) is located on the side of the support plate (51) away from the drive mechanism (5).

10. The radial dressing disc structure of a double-sided thinning grinding equipment according to claim 9, characterized in that: The transmission component (52) includes two synchronous pulleys (522) and a transmission belt (521). The two synchronous pulleys (522) are respectively installed at one end of the lead screw body (22) and the end of the output shaft of the drive mechanism (5). The transmission belt (521) is sleeved on the outer surface of the two synchronous pulleys (522).

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