Grinding machine with novel compact structure

Abstract

The application discloses a grinder with a novel pressing structure and belongs to the technical field of optical fiber connector processing equipment. The grinder comprises a grinder main body, a grinding assembly, a pressing assembly and a driving assembly. The grinding assembly comprises a grinding disc and is used for completing the grinding processing of the optical fiber connector. The pressing assembly comprises a grinder face frame with an opening in the middle, four symmetrically arranged clamping units and a bracket capable of adjusting the vertical position of the clamping unit. The clamping unit can realize accurate limiting and fixing of the optical fiber connector. The driving assembly is arranged on the bottom surface of the grinder main body and can drive the vertical limiting movement of the grinder face frame. The application realizes accurate and stable pressing positioning in the processing of the optical fiber connector by optimizing the pressing structure and the driving adjusting structure, can self-adaptively adjust the vertical relative position of the clamping unit, matches different processing conditions, is equipped with a waterproof protection structure, and is suitable for the accurate grinding processing of various optical fiber connectors.

Description

Technical Field

[0001] This invention relates to the field of optical fiber connector processing equipment, and more specifically, to a grinding machine with a novel pressing structure. Background Technology

[0002] Fiber optic connectors are core components in fiber optic communication systems that enable fiber optic connection and signal transmission. The flatness and smoothness of their end faces directly determine the transmission loss and communication stability of fiber optic signals. Therefore, end face grinding is a crucial process in the production and processing of fiber optic connectors, and it requires the use of a special grinding machine to complete the precision grinding process.

[0003] Currently, the clamping structure design of existing fiber optic polishing machines is relatively simple, mostly adopting a fixed clamping and limiting structure, which has many defects in actual processing. First, traditional clamping structures cannot achieve precise vertical adjustment, making it difficult to adjust the clamping position according to different specifications of fiber optic connectors and different polishing process requirements. This results in poor adaptability and problems such as fiber optic connector clamping offset and uneven force, directly leading to insufficient polishing end face accuracy and low product qualification rate. Second, the clamping drive structure of most polishing machines has poor stability. The vertical lifting process is prone to offset and jamming, which cannot guarantee the horizontal accuracy of the polishing surface frame and the polishing disc, further affecting the polishing quality. Third, the waterproof protection performance of the connection between the equipment clamping structure and the surface frame is weak. Polishing fluid and accumulated liquid generated during the polishing process can easily seep into the equipment, corroding precision components such as cylinders, motors, and transmission components. This not only shortens the service life of the equipment but also easily causes equipment failure and affects the continuity of production. Fourth, traditional equipment has a single clamping method, mostly unidirectional clamping and fixing, which cannot achieve all-round limiting and tightening. During the polishing of fiber optic connectors, loosening and displacement are prone to occur, making it difficult to guarantee processing stability.

[0004] In summary, existing fiber optic polishing machines suffer from technical defects such as low clamping and positioning accuracy, poor adjustment flexibility, insufficient waterproof performance, and weak processing stability, making it difficult to meet the demand for high-precision and high-stability batch polishing of fiber optic connectors. Therefore, there is an urgent need to design a new type of clamping structure polishing machine with optimized structure, convenient adjustment, and good protection. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a grinding machine with a novel clamping structure. Through modular clamping components and a precise drive structure design, it achieves all-round precise positioning and adaptive position adjustment of the fiber optic connector, while improving the equipment's waterproof protection and operational stability, effectively increasing the grinding precision and product qualification rate of the fiber optic connector.

[0006] To achieve the above objectives, the present invention provides a grinding machine with a novel clamping structure, comprising:

[0007] Grinding machine body;

[0008] A grinding assembly, comprising a grinding disc, wherein the grinding assembly is used to drive the grinding disc to process the optical fiber connector to be processed;

[0009] A clamping assembly includes a grinding machine frame with an opening in the middle. The grinding disc is disposed on the upper surface of the grinding machine frame, and four clamping units are symmetrically arranged around the surface of the grinding machine frame. The clamping units are used to limit the optical fiber connector to be processed to the surface of the grinding disc.

[0010] The clamping assembly also includes a bracket, which is disposed at the bottom of the grinding machine frame, and all clamping units are connected to the grinding machine frame. The bracket can adjust the position of the clamping units in the vertical direction.

[0011] A drive assembly is disposed on the inner bottom surface of the grinding machine body, and the drive assembly can drive the grinding machine frame to move in the upper limit direction in the vertical direction.

[0012] Preferably, the drive assembly includes a base plate, which is disposed inside the grinding machine body and fixedly connected to the grinding machine body. The surface of the base plate is provided with four guide positioning pins vertically, which pass through the middle of the top plate. The surface of the top plate is provided with two side plates symmetrically arranged in the vertical direction, and the top of the side plates is fixedly connected to the bracket.

[0013] Preferably, the driving assembly further includes a driving cylinder, which is disposed at the bottom of the top plate. The driving cylinder drives the top plate to move vertically on the surface of the guide positioning pin, thereby driving the side plate and the bracket to move vertically, and thus adjusting the relative position of the clamping unit with respect to the surface of the grinding disc.

[0014] Preferably, the bracket is connected to the clamping unit via a guide sleeve and a connecting flange. The guide sleeve is disposed between the grinding machine frame and the bracket. A connecting shaft is provided inside the guide sleeve, and the bottom of the connecting shaft passes through the bracket.

[0015] Preferably, the upper and lower surfaces of the bracket are respectively provided with a plurality of first locking nuts and a plurality of second locking nuts, the first locking nuts are disposed on the bottom outer periphery of the guide positioning pin, and the second locking nuts are disposed at the opposite position of the first locking nuts.

[0016] Preferably, the grinding assembly includes a motor, which is located in the middle of the top plate. The motor is connected to the bottom surface of the grinding disc via a rolling bearing, and the motor drives the grinding disc to move.

[0017] Preferably, the bracket is a hollow frame structure, the drive assembly passes through the central gap of the bracket, and the connection between the side plate and the bracket is located in the middle of the frame structure of the bracket.

[0018] Preferably, the clamping unit includes a horizontally arranged first cylinder and a vertically arranged second cylinder. The first cylinder is used to clamp the optical fiber connector to be processed, and the second cylinder is used to press the optical fiber connector to be processed from bottom to top.

[0019] Preferably, a waterproof ring is provided at the bottom of the clamping unit and at the connection point of the grinding machine frame. The waterproof ring has an arc-shaped groove in the middle to accommodate accumulated liquid. The waterproof ring is fixedly connected to the grinding machine frame by a nut.

[0020] Preferably, the bottom of the waterproof ring and the clamping unit is further provided with a waterproof gasket, the waterproof gasket including an inner waterproof gasket and an outer waterproof gasket.

[0021] Compared with the prior art, the technical solution proposed in this application has the following beneficial effects: by using four sets of symmetrically arranged clamping units in conjunction with a bidirectional clamping structure, the optical fiber connector is precisely fixed in all directions by horizontal clamping with the first cylinder and vertical clamping with the second cylinder, which completely solves the problem of easy loosening and displacement of the traditional equipment's unidirectional clamping, and greatly improves the grinding processing accuracy and product qualification rate.

[0022] This invention features an adjustable bracket and a precision drive assembly. The vertical adjustment of the bracket and clamping unit is achieved through a drive cylinder and a guide positioning pin. It can adapt to the processing requirements of different specifications of fiber optic connectors and different grinding processes, greatly improving the adaptability and versatility of the equipment. At the same time, the guide positioning structure ensures that there is no deviation or jamming during the lifting process, resulting in high operational stability.

[0023] This invention optimizes the internal structural layout of the equipment by adopting a hollow frame bracket to achieve an integrated layout of the drive component and the clamping component. The structure is compact and small in size. At the same time, the double locking nut structure achieves position locking, effectively avoiding structural displacement during processing and ensuring the long-term operating accuracy of the equipment.

[0024] This invention adds a multi-layered waterproof protection structure. With a waterproof ring with an arc-shaped liquid accumulation groove and inner and outer double-layer waterproof gaskets, it can effectively collect and block grinding liquid and moisture, prevent precision parts from being corroded and damaged, greatly extend the service life of equipment, reduce equipment failure rate and maintenance costs, and ensure production continuity.

[0025] The grinding assembly of this invention uses a motor and rolling bearings to drive the grinding disc, resulting in low transmission friction and smooth operation. Combined with a stable clamping and positioning structure, it can achieve high-precision and uniform grinding of the fiber optic connector end face, effectively reducing fiber optic signal transmission loss and meeting the processing requirements of high-end fiber optic components. Attached Figure Description

[0026] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1 This is an overall structural diagram of the grinding machine of the present invention;

[0028] Figure 2 The overall exploded structure of the grinding machine of the present invention is shown in the figure;

[0029] Figure 3 This is a structural diagram of the waterproof ring of the present invention;

[0030] Figure 4 This is a partially enlarged view of the installation position of the waterproof ring of the present invention;

[0031] Figure 5 This is a structural diagram of the clamping unit of the present invention;

[0032] Figure 6 This is a cross-sectional view of the clamping unit of the present invention;

[0033] In the diagram: 1-Grinding machine body, 2-Grinding disc, 3-Grinding machine frame, 4-Clamping unit, 41-First cylinder, 42-Second cylinder, 5-Bracket, 6-Base plate, 7-Guide positioning pin, 8-Top plate, 9-Side plate, 10-Drive cylinder, 11-Guide sleeve, 12-Connecting shaft, 13-First locking nut, 14-Second locking nut, 15-Motor, 16-Waterproof ring, 17-Arc groove, 18-Waterproof gasket, 19-Connecting flange, 20-Rolling bearing. Detailed Implementation

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0035] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] See Figures 1 to 6 This embodiment provides a grinding machine with a novel clamping structure, such as... Figure 1-4 As shown, the system includes a grinding machine body 1, a grinding assembly, a clamping assembly, and a drive assembly. The grinding assembly, clamping assembly, and drive assembly are all integrated and assembled inside the grinding machine body 1, resulting in a compact structure and a reasonable layout.

[0038] The grinding assembly includes a motor 15 and a grinding disc 2. The motor 15 is fixedly installed in the middle of the top plate 8. The output end of the motor 15 is connected to the bottom surface of the grinding disc 2 through a rolling bearing 20. The grinding disc 2 is horizontally arranged on the upper surface of the grinding machine frame 3. During operation, the motor 15 drives the grinding disc 2 to rotate smoothly and perform end face grinding on the pressed and fixed optical fiber connector. The rolling bearing 20 can effectively reduce transmission wear and ensure the stability and accuracy of the grinding disc 2.

[0039] The clamping assembly includes a grinding machine frame 3 and a bracket 5. A through opening is provided in the center of the grinding machine frame 3 to facilitate the assembly and heat dissipation of the grinding disc 2's transmission structure. Four clamping units 4 are symmetrically installed around the upper surface of the grinding machine frame 3. These four clamping units 4 work together to achieve multi-point positioning and fixation of the fiber optic connector, resulting in stronger positioning stability. Each clamping unit 4 consists of a horizontally positioned first cylinder 41 and a vertically positioned second cylinder 42. During processing, the first cylinder 41 extends horizontally to clamp the side wall of the fiber optic connector, achieving horizontal positioning, while the second cylinder 42 presses against the bottom of the fiber optic connector from bottom to top, achieving vertical positioning. This bidirectional clamping completely prevents workpiece loosening and displacement.

[0040] The bracket 5 adopts a rectangular hollow frame structure and is assembled at the bottom of the grinding machine frame 3. The drive component is arranged through the hollow gap in the middle of the bracket 5. The middle of the bracket 5 frame is fixedly connected to the top of the two side plates 9. The bracket 5 is connected to each clamping unit 4 through the guide sleeve 11 and the connecting flange 19. The guide sleeve 11 is located between the grinding machine frame 3 and the bracket 5. The connecting shaft 12 passes through the inside of the guide sleeve 11, and the bottom of the connecting shaft 12 passes through the bracket 5 to ensure the coaxiality of the vertical adjustment of the clamping unit 4. Multiple sets of first locking nuts 13 are assembled on the upper surface of the bracket 5, and corresponding second locking nuts 14 are assembled on the lower surface. The first locking nuts 13 are sleeved on the outer periphery of the bottom of the guide positioning pin 7. The upper and lower locking nuts lock the relative position of the bracket 5 and the guide positioning pin 7, preventing position displacement caused by processing vibration.

[0041] The drive assembly, serving as the core of the equipment's lifting and adjustment mechanism, includes a base plate 6, guide positioning pins 7, a top plate 8, side plates 9, and a drive cylinder 10. The base plate 6 is fixed to the bottom surface inside the grinding machine body 1. Four evenly distributed guide positioning pins 7 are vertically fixed on the base plate 6, and these four pins 7 pass through the top plate 8, achieving omnidirectional guidance and limiting of the top plate 8 to prevent lifting and lowering deviation. The drive cylinder 10 is fixedly installed at the center of the bottom of the top plate 8. Two side plates 9 are symmetrically fixed to the upper surface of the top plate 8, and the tops of the side plates 9 are rigidly connected to the bracket 5. During operation, the drive cylinder 10 extends and retracts, driving the top plate 8 to move vertically along the guide positioning pins 7, causing the side plates 9 and bracket 5 to rise and fall synchronously, thereby adjusting the vertical height of the clamping unit 4 relative to the grinding disc 2 to adapt to different processing requirements.

[0042] To enhance the waterproof performance of the equipment, this embodiment equips waterproof rings 16 at the connection between the bottom of the clamping unit 4 and the grinding machine frame 3. The waterproof rings 16 are sealed and fixed to the grinding machine frame 3 by fastening nuts. An arc-shaped groove 17 is formed in the middle of the waterproof ring 16 to accommodate grinding fluid and accumulated liquid during the grinding process, preventing liquid accumulation and seepage. At the same time, a waterproof gasket 18 is added between the waterproof ring 16 and the bottom of the clamping unit 4. The waterproof gasket 18 includes an inner waterproof gasket that fits the inner side and an outer waterproof gasket that fits the outer side, forming a double-layer sealed waterproof structure. This effectively prevents water vapor and grinding fluid from seeping into the equipment, protecting precision components such as cylinders, motors, and bearings, and significantly improving the service life and operational stability of the equipment.

[0043] The working process of this invention is as follows: First, the optical fiber connector to be processed is placed on the surface of the grinding disc 2. The clamping unit 4 is activated, the first cylinder 41 horizontally clamps the side wall of the workpiece, and the second cylinder 42 vertically pushes the bottom of the workpiece upward to complete the all-round limiting and fixing of the workpiece. Then, according to the workpiece specifications and grinding process requirements, the drive cylinder 10 is activated, driving the top plate 8 to move vertically along the guide positioning pin 7, driving the bracket 5 and the clamping unit 4 to finely adjust the vertical position to match the optimal grinding position. After adjustment, the position is locked by the first locking nut 13 and the second locking nut 14. Finally, the motor 15 is activated, and the motor 15 drives the grinding disc 2 to rotate stably to perform precision grinding on the end face of the optical fiber connector. The liquid generated during the processing is collected through the arc-shaped groove 17 of the waterproof ring 16, and sealed and protected with the double-layer waterproof gasket to ensure stable operation of the equipment.

[0044] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, nor to combinations thereof. Those skilled in the art can make various changes, modifications, or combinations within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A grinding machine with a novel clamping structure, characterized in that, include: Grinding machine body; A grinding assembly, comprising a grinding disc, wherein the grinding assembly is used to drive the grinding disc to process the optical fiber connector to be processed; A clamping assembly includes a grinding machine frame with an opening in the middle. The grinding disc is disposed on the upper surface of the grinding machine frame, and four clamping units are symmetrically arranged around the surface of the grinding machine frame. The clamping units are used to limit the optical fiber connector to be processed to the surface of the grinding disc. The clamping assembly also includes a bracket, which is disposed at the bottom of the grinding machine frame, and all clamping units are connected to the grinding machine frame. The bracket can adjust the position of the clamping units in the vertical direction. A drive assembly is disposed on the inner bottom surface of the grinding machine body, and the drive assembly can drive the grinding machine frame to move in the upper limit direction in the vertical direction.

2. A grinding machine with a novel clamping structure according to claim 1, characterized in that, The drive assembly includes a base plate, which is disposed inside the grinding machine body and fixedly connected to the grinding machine body. Four guide positioning pins are vertically arranged on the surface of the base plate, and the guide positioning pins pass through the middle of the top plate. Two side plates are symmetrically arranged on the surface of the top plate in the vertical direction, and the top of the side plates is fixedly connected to the bracket.

3. A grinding machine with a novel pressing structure according to claim 2, characterized in that, The driving assembly also includes a driving cylinder, which is disposed at the bottom of the top plate. The driving cylinder drives the top plate to move vertically on the surface of the guide positioning pin, thereby driving the side plate and the bracket to move vertically, and thus adjusting the relative position of the clamping unit with respect to the surface of the grinding disc.

4. A grinding machine with a novel clamping structure according to claim 3, characterized in that, The bracket is connected to the clamping unit via a guide sleeve and a connecting flange. The guide sleeve is disposed between the grinding machine frame and the bracket. A connecting shaft is provided inside the guide sleeve, and the bottom of the connecting shaft passes through the bracket.

5. A grinding machine with a novel clamping structure according to claim 4, characterized in that, The bracket has a plurality of first locking nuts and a plurality of second locking nuts on its upper and lower surfaces, respectively. The first locking nuts are located on the bottom outer periphery of the guide positioning pin, and the second locking nuts are located at the opposite position of the first locking nuts.

6. A grinding machine with a novel clamping structure according to claim 1, characterized in that, The grinding assembly includes a motor, which is located in the middle of the top plate. The motor is connected to the bottom surface of the grinding disc via a rolling bearing, and the motor drives the grinding disc to move.

7. A grinding machine with a novel clamping structure according to claim 1, characterized in that, The bracket is a hollow frame structure, the drive assembly passes through the central gap of the bracket, and the connection between the side plate and the bracket is located in the middle of the frame structure of the bracket.

8. A grinding machine with a novel clamping structure according to claim 1, characterized in that, The clamping unit includes a horizontally arranged first cylinder and a vertically arranged second cylinder. The first cylinder is used to clamp the optical fiber connector to be processed, and the second cylinder is used to press the optical fiber connector to be processed from bottom to top.

9. A grinding machine with a novel clamping structure according to claim 8, characterized in that, The bottom of the clamping unit and the connection between it and the grinding machine frame are both provided with waterproof rings. The waterproof rings have an arc-shaped groove in the middle to accommodate accumulated liquid. The waterproof rings are fixedly connected to the grinding machine frame by nuts.

10. A grinding machine with a novel clamping structure according to claim 9, characterized in that, The bottom of the waterproof ring and the clamping unit is also provided with a waterproof gasket, which includes an inner waterproof gasket and an outer waterproof gasket.

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