Limiting feed oil stone surface lapping device

Abstract

The application discloses a limited feeding oil stone surface lapping device, which comprises a supporting device, a pushing device and a polishing device; the supporting device comprises a supporting block and a limiting block which are oppositely arranged along the vertical direction, and an oil stone channel for accommodating and guiding the oil stone to move along the first horizontal direction is formed between the supporting block and the limiting block, the oil stone can be accurately guided to move along the preset direction, and the problem that the oil stone is easy to deflect when manually pushed in the prior art is avoided; the pushing device comprises a push rod which can extend into the oil stone channel, the push rod can replace manual pushing, the positioning operation is not needed, the process can be simplified, and the problems that the manual pushing is low in efficiency and difficult to continuously process are solved; the polishing device comprises two groups of grinding discs which are oppositely arranged along the second horizontal direction, the push rod is used for pushing the oil stone to pass between the two groups of grinding discs along the oil stone channel, and the two groups of grinding discs are matched and can grind the surface of the oil stone passing therebetween.

Description

Technical Field

[0001] This application relates to the field of oilstone processing equipment, and in particular to a limited-feed oilstone surface fine grinding device. Background Technology

[0002] In the field of oilstone production and processing, surface grinding precision and processing efficiency directly affect the performance and production benefits of oilstones. Existing oilstone surface finishing equipment relies on manual pushing of the oilstone to the grinding area. Uneven manual operation force and easy deviation in pushing direction often cause the oilstone to skew during its journey, making it impossible to accurately fit the grinding parts. This not only results in uneven grinding thickness and precision deviation of the oilstone surface, but may also cause equipment failure or safety hazards to operators due to collisions between the skewed oilstone and equipment parts.

[0003] Meanwhile, manual pushing requires operation one block at a time. After each block of oilstone is ground, it needs to be repositioned and pushed to the next block. The operation process is cumbersome and it is difficult to achieve continuous processing. This greatly limits the overall efficiency of oilstone fine grinding and cannot meet the needs of mass production. Summary of the Invention

[0004] The purpose of this application is to overcome the shortcomings of the existing technology and provide a limited-feed oilstone surface finishing device.

[0005] To achieve the above technical objectives, this application provides a limited-feed oilstone surface finishing device, comprising: a support device, which includes a support block and a limiting block arranged opposite each other in a vertical direction, forming an oilstone channel between the support block and the limiting block for accommodating and guiding the oilstone to move in a first horizontal direction; a propulsion device, which includes a push rod that can extend into the oilstone channel, the push rod being used to push the oilstone to move along the oilstone channel; and a grinding device, located on the travel path of the oilstone and downstream of the propulsion device, the grinding device including two sets of grinding discs arranged opposite each other in a second horizontal direction, the support device passing between the two sets of grinding discs, the two sets of grinding discs cooperating to grind the surface of the oilstone passing between them; wherein, the vertical direction, the first horizontal direction, and the second horizontal direction are perpendicular to each other.

[0006] Furthermore, along the second horizontal direction, the widths of the support block and the limiting block are both smaller than the width of the oilstone, thereby avoiding interference with the grinding wheel.

[0007] Furthermore, the position of the support block and / or limit block is adjustable in the vertical direction to accommodate oilstones of different heights or grinding requirements.

[0008] Furthermore, the propulsion device also includes a drive member for driving the push rod to move along a first horizontal direction.

[0009] Furthermore, the push rod can be advanced intermittently or at a constant speed to adjust the grinding time of the oilstone.

[0010] Furthermore, the grinding device also includes a grinding drive component, which drives the grinding disc to rotate. The grinding disc is connected to the grinding drive component via a detachable connection structure, which includes a flange located at the output end of the grinding drive component and locking bolts passing between the flange and the grinding disc. By installing or removing the locking bolts, the grinding disc can be easily replaced or the grinding surface can be maintained. The grinding device also includes a speed adjustment module, which is electrically connected to the grinding drive component and can adjust the rotation speed of the grinding disc as needed, with a speed adjustment range of 50-500 r / min.

[0011] Furthermore, the limited-feed oilstone surface finishing equipment also includes a limiting device. The limiting device is located on the travel path of the oilstone, downstream of the propulsion device and upstream of the grinding device, and is used to limit the position of the oilstone and prevent the oilstone from leaving the oilstone channel. The limiting device includes: two sets of limiting wheels arranged opposite each other along the second horizontal direction, with the support device passing between the two sets of limiting wheels; and a limiting rotation drive component used to drive the two sets of limiting wheels to rotate synchronously and in opposite directions. After the oilstone is pushed into the space between the two sets of limiting wheels by the push rod, the two sets of limiting wheels can cooperate to clamp the oilstone and promote the movement of the oilstone toward the grinding device by rotation.

[0012] Furthermore, the wheel surface of the limiting wheel is made of elastic material.

[0013] Furthermore, the limiting device also includes two sets of limiting pads arranged opposite each other along the second horizontal direction, with each limiting pad corresponding to a limiting wheel; the limiting pads are made of flexible material; one side of the limiting pad abuts against the support device, and the other side is arc-shaped to partially enclose the limiting wheel, in order to prevent the oilstone from falling out and to clean and protect the wheel surface.

[0014] Furthermore, the limited-feed oilstone surface finishing equipment also includes a material frame, which is located downstream of the grinding device and below the support device. After the oilstone is ground, it can fall into the material frame after leaving the grinding device along the support device.

[0015] This application provides a limited-feed oilstone surface finishing device, including a support device, a propulsion device, and a grinding device. The support device includes a support block and a limiting block arranged opposite each other in a vertical direction, forming an oilstone channel between the support block and the limiting block for accommodating and guiding the oilstone to move in a first horizontal direction. The propulsion device includes a push rod that can extend into the oilstone channel. The grinding device includes two sets of grinding discs arranged opposite each other in a second horizontal direction. The push rod is used to push the oilstone through the oilstone channel between the two sets of grinding discs. The two sets of grinding discs cooperate to grind the surface of the oilstone passing between them. The limited-feed oilstone surface finishing device provided by this application, through the oilstone channel formed by the support block and the limiting block, can accurately guide the oilstone to move in the first horizontal direction, avoiding the problem of easy deflection of the oilstone when manually pushed in the prior art, and ensuring the oilstone's movement is precise. The stable direction of stone movement prevents uneven grinding thickness and precision deviation caused by skewing, as well as malfunctions or safety hazards caused by collisions between the stone and equipment components. The push rod of the propulsion device can extend into the stone channel to push the stone, replacing manual pushing. This eliminates the need for piece-by-piece positioning, simplifies the process, and solves the problems of low efficiency and difficulty in continuous processing caused by manual pushing, making it suitable for batch production needs. The two sets of grinding discs of the grinding device are arranged opposite each other along the second horizontal direction, and the support device passes between the two sets of grinding discs, so that the stone can be ground by the two sets of grinding discs when it passes through. Combined with the precise guidance of the stone channel, it ensures uniform grinding on both sides of the stone, further improving the defect that the stone cannot accurately fit the grinding parts when pushed manually. Through the synergy of various structures, the problems of stone skewing, safety hazards, and low efficiency in the existing technology are solved simultaneously. Attached Figure Description

[0016] Figure 1 A schematic diagram of a limit-feed oilstone surface finishing device provided in this application; Figure 2 A schematic diagram of another limiting feed oilstone surface finishing device provided in this application. Detailed Implementation

[0017] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the 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.

[0018] This application provides a limited-feed oilstone surface finishing device, comprising: a support device 10, which includes a support block 11 and a limiting block 12 arranged opposite each other in a vertical direction, forming an oilstone channel between the support block 11 and the limiting block 12 for accommodating and guiding the oilstone to move in a first horizontal direction; a propulsion device, which includes a push rod 21 that can extend into the oilstone channel, and the push rod 21 is used to push the oilstone to move along the oilstone channel; and a grinding device, which is located on the travel path of the oilstone and downstream of the propulsion device, and includes two sets of grinding discs 31 arranged opposite each other in a second horizontal direction, with the support device 10 passing between the two sets of grinding discs 31, and the two sets of grinding discs 31 cooperating to grind the surface of the oilstone passing between them; wherein the vertical direction, the first horizontal direction, and the second horizontal direction are perpendicular to each other.

[0019] For details, please refer to Figure 1 In the illustrated embodiment, the support device 10 includes a support block 11 and a limiting block 12 arranged opposite each other in the vertical direction. The gap between them forms an oilstone channel. The vertical height of the oilstone channel is adapted to the height of the oilstone (with a small clearance for movement), which can limit the position of the oilstone and guide the oilstone to move in a preset direction (i.e., the first horizontal direction). The first horizontal direction is the left-right direction, and both the support block 11 and the limiting block 12 are elongated structures extending in the left-right direction. The oilstone inlet end (i.e., the right end) of the support device 10 is provided with a propulsion device, and the oilstone outlet end (i.e., the left end) of the support device 10 passes between the two sets of grinding discs 31 of the grinding device.

[0020] Continue to refer to Figure 1 The propulsion device includes a push rod 21, which is a rod-shaped structure with a certain length to penetrate deep into the oilstone channel to push the oilstone. The end of the push rod 21 is provided with a push block that can conform to the surface of the oilstone. The shape of the push block is similar to that of the oilstone to be constrained by the oilstone channel. The axis of the push rod 21 is parallel to the first horizontal direction. In use, under the constraint of the oilstone channel, the push rod 21 can translate along the first horizontal direction to push the oilstone along a preset path.

[0021] Combined with reference Figure 2 The grinding device includes two sets of grinding discs 31 arranged opposite each other along a second horizontal direction (i.e., the left-right direction in the figure), with the rotation axes of both sets of grinding discs 31 parallel to the second horizontal direction. The grinding device is located downstream of the propulsion device, and the oilstone channel of the support device 10 passes between the two sets of grinding discs 31. After the push rod 21 pushes the oilstone along the oilstone channel into the space between the two sets of grinding discs 31, the wheel surfaces of the two sets of grinding discs 31 respectively come into contact with the left and right sides of the oilstone; the grinding discs 31 rotate, and through the friction between the wheel surfaces and the oilstone surfaces, both sides of the oilstone can be ground simultaneously; the support device 10 continuously limits the position of the oilstone to prevent it from tilting and ensures uniform grinding thickness.

[0022] The surface finishing equipment for the limited-feed oilstone provided in this application forms an oilstone channel through the support block 11 and the limiting block 12, which can accurately guide the oilstone to move along the first horizontal direction, avoiding the problem of easy deviation when manually pushing the oilstone in the prior art. This ensures the stability of the oilstone's travel direction and prevents uneven grinding thickness, accuracy deviation, and malfunctions or safety hazards caused by collisions between the oilstone and equipment components due to deviation. The push rod 21 of the propulsion device can extend into the oilstone channel to push the oilstone, replacing manual pushing. It eliminates the need for block-by-block positioning, simplifies the process, and solves the problems of low efficiency and difficulty in continuous processing caused by manual pushing, making it suitable for batch production needs. The two sets of grinding discs 31 of the grinding device are arranged opposite each other along the second horizontal direction, and the support device 10 passes between the two sets of grinding discs 31, so that the oilstone can be ground by the two sets of grinding discs 31 when it passes through. Combined with the precise guidance of the oilstone channel, it ensures uniform grinding on both sides of the oilstone, further improving the defect that the oilstone cannot accurately fit the grinding parts when manually pushed. Through the synergy of various structures, the problems of oilstone deviation, safety hazards, and low efficiency in the prior art are solved simultaneously.

[0023] Optionally, along the second horizontal direction, the widths of the support block 11 and the limiting block 12 are both smaller than the width of the oilstone, thereby avoiding interference with the grinding disc 31.

[0024] The purpose of setting the width of the support block 11 and the limiting block 12 to be smaller than the width of the oilstone is to ensure the guiding function of the support device 10 on the oilstone, avoid structural interference between the support block 11, the limiting block 12 and the grinding disc 31 of the grinding device, and at the same time ensure that the grinding disc 31 can fully contact the surface of the oilstone to be ground.

[0025] Specifically, along the second horizontal direction (i.e., the relative distribution direction of the grinding discs 31), when the width of the support block 11 and the limiting block 12 is smaller, after the oilstone is placed into the oilstone channel, its two sides will extend beyond the range of the support block 11 and the limiting block 12. Therefore, after the oilstone enters between the two sets of grinding discs 31 along the channel, the grinding disc 31 can directly contact the two sides of the oilstone that extend beyond it for grinding. This prevents insufficient grinding of the oilstone due to obstruction by the support block 11 and the limiting block 12, and also prevents the support block 11 and the limiting block 12 from colliding with the rotating grinding disc 31, avoiding damage to equipment parts or jamming of the grinding disc 31 that could affect grinding accuracy.

[0026] In other embodiments, the lengths of the support block 11 and the limiting block 12 can be shortened along the first horizontal direction (i.e., the feeding direction of the oilstone), so that the support device 10 only covers the area from the propulsion device to the upstream of the grinding device, and does not extend to the location of the grinding disc 31. When the oilstone enters the grinding disc 31, it detaches from the support of the support block 11 and the limiting block 12, and the position of the oilstone is limited by the positioning structure of the grinding disc itself (such as the guide flange on the inner side of the grinding disc). Alternatively, a detachable clearance section can be provided at one end of the support block 11 and the limiting block 12 near the grinding disc 31. The clearance section is removed during oilstone grinding, creating a gap between the support device and the grinding disc 31. After grinding is completed, the clearance section is reinstalled for subsequent support and guidance of the oilstone. Both methods can achieve non-interference between the support device 10 and the grinding device.

[0027] Optionally, the position of the support block 11 and / or the limiting block 12 is adjustable in the vertical direction to accommodate oilstones of different heights or grinding requirements.

[0028] The support block 11 and / or the limiting block 12 are designed to be adjustable in the vertical direction. By adjusting the vertical position of the support block 11 and / or the limiting block 12, the height of the oilstone channel between them can be changed, thereby accommodating oilstones of different vertical heights (such as a 5mm high fine grinding oilstone and a 15mm high coarse grinding oilstone). This avoids problems such as the channel being too wide (making the oilstone prone to tilting) or too narrow (making the oilstone unable to be inserted) due to differences in oilstone height. At the same time, by finely adjusting the channel height, the contact position between the oilstone and the grinding disc 31 can also be changed to meet different grinding needs (such as local fine grinding and full surface grinding), improving the adaptability of the equipment to oilstone processing scenarios.

[0029] In practical applications, the height of either the support block 11 or the limiting block 12 can be adjusted, or the height of both the support block 11 and the limiting block 12 can be adjusted simultaneously. When adjusted synchronously, the centers of the oilstones at different heights can be made collinear, thereby ensuring that the grinding positions of the oilstone and the grinding disc 31 are consistent.

[0030] Specifically, automatic drive components such as cylinders or electric cylinders can be set to make the support block 11 and / or limit block 12 rise and fall, thereby achieving height adjustment; alternatively, manual adjustment tools such as hand-adjusting screws or bolt adjusters can be used to make the support block 11 and / or limit block 12 rise and fall, thereby achieving height adjustment.

[0031] This application does not limit the specific method of adjusting the position of the support block 11 and / or the limiting block 12.

[0032] In one embodiment, a worker manually pushes the push rod 21 to push the oilstone along the oilstone channel.

[0033] Specifically, before operation, first confirm that the height of the stone channel of the support device 10 has been adjusted according to the size of the stone to be ground (e.g., for a stone with a vertical height of 10mm and a length of 120mm in the first horizontal direction, the corresponding stone channel height is set to 10.2mm, leaving a small clearance for movement). Simultaneously, check the two sets of grinding discs 31 of the grinding device to confirm they are in normal rotation (e.g., the speed is set to 300r / min), and that the gap between the grinding discs 31 matches the width of the stone in the second horizontal direction (e.g., when the stone width is 80mm, the grinding disc gap is set to 79.8mm). After the preliminary checks are completed, the worker places a single stone to be ground into the stone channel along the first horizontal direction, ensuring that the bottom of the stone is against the support block 11 and the top is close to the limiting block 12. The worker holds the push rod 21 and pushes it into the stone channel from the feed end until the end of the push rod 21 is in contact with the stone. The worker slowly (to avoid excessive speed that could cause the oilstone to tilt or collide with the grinding disc) pushes the push rod 21, moving the oilstone along the oilstone channel towards the grinding device. During this process, the worker observes the movement of the oilstone. If the oilstone shows a tendency to shift towards the second horizontal direction, the worker can fine-tune the pushing force of the push rod 21 to help the oilstone maintain its movement along the first horizontal direction. Once the oilstone is fully between the two sets of grinding discs 31, the worker continues to maintain the pushing force of the push rod 21 to ensure close contact between the oilstone and the grinding disc 31 until the oilstone has completely passed through the area of ​​the grinding disc 31, completing the surface grinding. After the oilstone grinding is completed, the worker continues to push the push rod 21 to push the oilstone out from the discharge end of the oilstone channel, allowing the oilstone to fall into the material frame 50 below. Then, the worker pulls the push rod 21 in the opposite direction to remove it from the oilstone channel and reset it, preparing for the loading and pushing operation of the next oilstone. This process is repeated to achieve continuous manual operation.

[0034] To reduce labor intensity and accelerate grinding, in some embodiments, multiple oilstones can be placed into the oilstone channel at once, with the tail of the previous oilstone abutting the head of the next oilstone, forming a line. Then, simply pushing the last oilstone near the feed end with push rod 21 allows all the oilstones to move forward simultaneously. After the first oilstone finishes grinding and is pushed out of the oilstone channel, a new oilstone to be ground can be immediately placed into the channel; thus, push rod 21 only needs to move the length of one oilstone.

[0035] In another embodiment, the propulsion device further includes a drive member for driving the push rod 21 to move in a first horizontal direction.

[0036] The driving component can be any linear drive component, such as a pneumatic cylinder or an electric cylinder, that can push the push rod 21 along the oilstone channel.

[0037] The use of a push-driven component enables continuous or intermittent automatic movement of the push rod 21, eliminating the need for manual pushing and resetting of each block by workers. This improves work efficiency and allows for continuous operation over extended periods, meeting the needs of batch oilstone fine grinding. Furthermore, the stable pushing direction, uniform speed, and force of the automatic drive component help the oilstone travel precisely along the oilstone channel, reducing grinding accuracy deviations caused by oilstone skew and lowering the risk of equipment failure due to collisions between the oilstone and the grinding disc 31.

[0038] Optionally, the push rod can be advanced intermittently or at a constant speed to adjust the grinding time of the oilstone.

[0039] Specifically, intermittent propulsion refers to the "push-pause-push-pause" cyclical motion pattern that occurs when the push rod 21 pushes the oilstone along the first horizontal direction. The duration of each push and pause can be set according to the grinding requirements (e.g., push 5mm, pause for 3s, then push 5mm again, pause for 3s, until the oilstone is finished grinding). Its function is to extend the effective contact time of the oilstone in the grinding area of ​​the grinding disc 31 by extending the pause process, adapting to oilstone processing requirements that require deep or high-precision grinding (e.g., scenarios where the oilstone surface roughness requirement is Ra≤0.2μm), avoiding insufficient grinding caused by the oilstone passing through the grinding disc area too quickly; simultaneously, the pause helps the grinding disc 31 to repeatedly and finely grind the same area of ​​the oilstone, reducing uneven grinding patterns and improving the surface finish of the oilstone.

[0040] Specifically, uniform speed propulsion refers to the push rod 21 continuously pushing the oilstone along the first horizontal direction at a constant speed (e.g., 3-8 mm / s, the speed can be set), with no interruption throughout the entire pushing process. The oilstone passes through the grinding area of ​​the grinding disc 31 at a uniform rate. Its function is to ensure a stable and consistent contact time between the oilstone and the grinding disc 31, adapting to the standardized processing requirements of batch production of conventional oilstones (e.g., general-purpose oilstones with a surface roughness requirement of Ra≤0.8μm), avoiding differences in grinding thickness and precision caused by fluctuations in the propulsion speed, and ensuring consistency in batch production. At the same time, uniform speed propulsion can maximize the grinding efficiency of the grinding disc 31, reduce equipment idle time, and adapt to production scenarios with high processing efficiency requirements.

[0041] Specifically, the grinding device also includes a grinding drive component, which is used to drive the grinding disc 31 to rotate.

[0042] The grinding drive can be any drive component that can achieve the rotation of the grinding disc 31, such as a servo motor drive structure, a geared motor drive structure, or a stepper motor drive structure.

[0043] The grinding drive unit continuously and stably rotates the grinding disc 31, enabling continuous operation and adapting to the production needs of batch oilstones. Simultaneously, the grinding drive unit precisely controls the rotational speed of the grinding disc 31 through a mechanical structure (e.g., the speed error of the servo motor is ≤ ±1 r / min), ensuring that the grinding disc 31 rotates at a preset speed and temperature, thereby guaranteeing the grinding effect. In actual use, the stable rotation of the grinding disc 31, combined with the automated pushing of the propulsion device, ensures that the contact state between the oilstone and the grinding disc 31 remains consistent, further guaranteeing the grinding accuracy of the oilstone and reducing fluctuations in finished product quality caused by differences in manual operation.

[0044] In one embodiment, the grinding drive is activated, causing the grinding disc 31 to rotate stably at a set speed (e.g., 200 r / min for conventional oilstone grinding). Then, the propulsion device is activated, and the push rod 21 pushes the oilstone along the oilstone channel at a constant speed (e.g., 5 mm / s). The oilstone passes through the grinding discs 31 at a uniform rate, during which the grinding discs 31 continue to rotate and adhere to both sides of the oilstone for grinding. Once the oilstone has completely passed through the grinding disc area, the push rod 21 stops pushing, and the oilstone falls into the material frame 50, completing the grinding of a single oilstone. The "oilstone loading - uniform speed propulsion - grinding - unloading" process is repeated subsequently to achieve batch processing.

[0045] This ensures that the oilstone moves forward at a constant speed during the grinding process, guaranteeing consistent contact time between the oilstone and the grinding disc 31 (e.g., a 100mm long oilstone moving at a speed of 5mm / s has a fixed contact time of 20s). This ensures uniform grinding parameters for batches of oilstones, avoiding precision deviations due to differences in contact time between different oilstones, and adapting to standardized production of general-purpose oilstones. At the same time, the uniform and uninterrupted movement maximizes the grinding efficiency of the grinding disc 31, reduces equipment downtime, and increases the processing capacity per unit time, thereby meeting the needs of high-efficiency batch production.

[0046] In another embodiment, the grinding drive is activated, causing the grinding disc 31 to rotate stably at a set speed (e.g., 100 r / min for high-precision oilstone grinding). The propulsion device pushes the oilstone according to a preset program, presenting a "push-pause-push again" cycle (e.g., push 4 mm, pause for 2 seconds, then push another 4 mm, pause for 2 seconds). Each time the oilstone pauses, the grinding disc 31 continuously grinds the currently contacted oilstone until the oilstone completely passes through the grinding disc area. The next oilstone is then pushed in at the same intermittent rhythm.

[0047] This allows the oilstone to be fed intermittently during the grinding process, and the grinding time of key areas of the oilstone can be extended by stopping (such as the surface of the oilstone that needs to be finely ground can be repeatedly ground by stopping multiple times), so as to control the surface roughness of the oilstone to a lower range and adapt to high precision or deep grinding requirements.

[0048] Optionally, the grinding disc 31 is connected to the grinding drive via a detachable connection structure. The detachable connection structure includes a flange located at the output end of the grinding drive and a locking bolt passing between the flange and the grinding disc 31. By installing or removing the locking bolt, the grinding disc 31 can be easily replaced or the grinding surface maintained.

[0049] Specifically, align the flange at the output end of the grinding drive with the center mounting surface of the grinding disc 31, ensuring that the bolt holes on the flange (usually 4-6 evenly distributed around the circumference) completely overlap with the corresponding bolt holes on the grinding disc 31; pass the locking bolts one by one through the bolt holes of the flange and the grinding disc 31, and tighten the bolts until the grinding disc 31 and the flange are tightly fitted without gaps, thus completing the fixed connection between the grinding disc 31 and the grinding drive. At this point, starting the grinding drive will drive the grinding disc 31 to rotate synchronously.

[0050] When the grinding disc 31 shows wear (e.g., the flatness error of the grinding disc surface exceeds 0.1mm), needs to be replaced with a grinding disc 31 of a different grit size, or needs to be cleaned and maintained (e.g., removing grinding debris, repairing minor scratches), first turn off the grinding drive, then loosen and remove the locking bolts one by one in a diagonal sequence. Then, hold the grinding disc 31 axially away from the flange to disassemble it. After replacing (installing a new grinding disc) or maintaining (cleaning / repairing) the grinding disc 31, re-secure the grinding disc 31 according to the "Grinding Disc Installation" procedure described above.

[0051] The detachable connection structure reduces the difficulty of replacing the grinding disc 31 and improves maintenance efficiency. The grinding disc 31 can be disassembled and assembled by simply installing and removing the locking bolts. The operation is simple and avoids excessive downtime caused by complicated disassembly and assembly. It solves the problem of cumbersome grinding disc replacement and reduced production efficiency in traditional structures.

[0052] Optionally, the grinding device also includes a speed adjustment module, which is electrically connected to the grinding drive and can adjust the rotation speed of the grinding disc 31 as needed, with a speed adjustment range of 50-500 r / min.

[0053] Specifically, the speed regulation module is electrically connected to the grinding drive, enabling precise control of the grinding disc 31's speed through "parameter setting - signal transmission - speed feedback." Operators input the target speed (within the range of 50-500 r / min) via the module's control panel (such as an operation panel with buttons and a display) or an external PLC system. For example, 500 r / min is set for grinding coarse grinding stones, and 50 r / min for grinding fine grinding stones. The panel or system displays the current set speed and the actual speed of the grinding drive in real time, facilitating operator verification. After receiving the setting command, the speed regulation module converts it into an electrical signal and transmits it to the grinding drive's driver (such as a servo driver). The driver adjusts its output power or frequency according to the signal, thereby controlling the grinding drive's rotation speed and ultimately driving the grinding disc 31 to rotate at the set speed. The speed adjustment module has a built-in speed feedback unit (such as an encoder coaxially connected to the grinding drive component), which can collect the actual speed of the grinding disc 31 in real time and compare it with the set speed. If there is a speed deviation (such as the increase in load causing the grinding disc speed to drop to 480 r / min, which is lower than the set 500 r / min), the module will automatically output an adjustment signal to increase the power of the grinding drive component through the driver, so that the grinding disc speed returns to the set value and ensures the speed is stable.

[0054] The speed adjustment module regulates the rotational speed of the grinding disc 31, matching different grinding scenarios of the oilstone and solving the problem that the grinding disc 31 cannot simultaneously handle coarse and fine grinding at a fixed speed. The speed adjustment module can also correct speed deviations in real time, preventing sudden changes in speed due to load fluctuations in the grinding drive components (such as changes in grinding disc resistance caused by uneven hardness of the oilstone). This ensures consistent contact grinding intensity between the same batch or different batches of oilstones and the grinding disc, reducing uneven grinding thickness and surface precision differences caused by speed fluctuations, thereby improving the stability of finished product quality.

[0055] The reason for setting the lower limit speed to 50 r / min is that when using an oilstone for fine or delicate grinding, the grinding disc needs to slowly and meticulously grind the surface. If the speed is lower than 50 r / min, the friction frequency between the grinding disc 31 and the surface of the oilstone will be too low, which will not only lead to a significant decrease in grinding efficiency, but may also cause a "jamming" phenomenon due to insufficient rotational power of the grinding disc (especially when facing an oilstone with high hardness), making it impossible to form a continuous and stable grinding effect.

[0056] The upper limit of the rotation speed is set at 500 r / min for two reasons. First, the main requirement for coarse grinding with an oilstone is to quickly remove surface residue. A rotation speed of 500 r / min can meet the coarse grinding efficiency requirements of most conventional oilstones (such as alumina oilstones and silicon carbide oilstones). If the rotation speed exceeds 500 r / min, the friction temperature between the grinding disc 31 and the surface of the oilstone will rise sharply (possibly exceeding 150°C), resulting in defects such as burns and cracks on the surface of the oilstone. Second, the structural strength of the grinding drive components (such as conventional servo motors) and the grinding disc 31 is limited. If the rotation speed is too high, the centrifugal force of the grinding disc 31 will increase (exceeding the material's tolerance limit), which can easily cause the grinding disc 31 to shake, the wheel surface to deform, and even cause safety hazards.

[0057] A rotation speed of 50-500 r / min ensures that the grinding disc 31 can complete a sufficient number of grinding cycles when the oilstone passes through the grinding disc area, covering the full range of grinding needs from coarse to fine, and can adapt to most oilstone processing conditions without additional range expansion.

[0058] Optionally, the surface finishing equipment for the limited feed oilstone provided in this application also includes a limiting device. The limiting device is located on the travel path of the oilstone, downstream of the propulsion device and upstream of the grinding device, and is used to limit the position of the oilstone and prevent the oilstone from leaving the oilstone channel. The limiting device includes: two sets of limiting wheels 41 arranged opposite to each other along the second horizontal direction, and a support device passing between the two sets of limiting wheels 41; a limiting rotation drive component, used to drive the two sets of limiting wheels 41 to rotate synchronously and in opposite directions. After the oilstone is pushed into the space between the two sets of limiting wheels 41 by the push rod 21, the two sets of limiting wheels 41 can cooperate to clamp the oilstone and promote the oilstone to move towards the grinding device by rotation.

[0059] For details, please refer to Figure 2 In the illustrated embodiment, the first horizontal direction is the up-down direction, and the second horizontal direction is the left-right direction. Two sets of limiting wheels 41 are arranged symmetrically opposite each other in the left-right direction, and their rotation axes are parallel to the second horizontal direction. The support device 10 extends in the up-down direction, passing through the gap between the two sets of limiting wheels 41 and the two sets of grinding discs 31. This gap is adapted to the width of the oilstone in the second horizontal direction (e.g., when the oilstone width is 80mm, the wheel gap is set to 79.8-80mm). The limiting wheels 41 are located downstream of the propulsion device and upstream of the grinding device on the oilstone's travel path. The oilstone, pushed by the propulsion device, enters the two sets of limiting wheels 41 along the oilstone channel and then enters the grinding disc area, forming a continuous path of "propulsion-limiting-grinding".

[0060] The limiting rotation drive can be any drive component capable of rotating the limiting wheel 41, such as a servo motor drive structure, a geared motor drive structure, or a stepper motor drive structure. In actual equipment, two sets of limiting rotation drives can be set up to drive the limiting wheel 41 to rotate, or only one set of limiting rotation drives can be set up, and the rotation of the two sets of limiting wheels 41 can be achieved through a transmission structure such as a synchronous belt pulley assembly and a gear set.

[0061] This causes the two sets of limit wheels 41 to rotate synchronously and in opposite directions (e.g.) Figure 2 In the middle, the left limiting wheel 41 rotates counterclockwise and the right limiting wheel 41 rotates clockwise. After the push rod 21 pushes the oilstone into the limiting device, the two sets of limiting wheels 41 can clamp the oilstone by the friction between the wheel surface and the side of the oilstone. On the one hand, as the wheels rotate, a driving force is generated in the direction of the grinding device so that the oilstone can be fed downstream. On the other hand, under the clamping action of the wheels, the oilstone can only move in the first horizontal direction, thereby preventing the oilstone from deviating in the second horizontal direction.

[0062] By setting two sets of limiting wheels 41 to clamp the oilstone along the second horizontal direction, the displacement of the oilstone in the second horizontal direction can be limited. This prevents the oilstone from falling out of the oilstone channel due to uneven pushing force of the push rod or the presence of small gaps, ensuring that the oilstone always travels along the first horizontal direction, laying the foundation for the subsequent precise grinding of the grinding disc 31. The rotating limiting wheels 41 can also work in conjunction with the propulsion device to allow the oilstone to actively enter the grinding device. Before the oilstone enters the grinding disc 31, the limiting wheels 41 can also correct the posture of the oilstone in advance, preventing the oilstone from colliding with the grinding disc 31 with a tendency to deviate, thereby reducing the risk of equipment failure and avoiding problems such as uneven grinding thickness caused by oilstone tilting.

[0063] Optionally, the wheel surface of the limiting wheel 41 is made of an elastic material.

[0064] Specifically, the wheel surface of the limiting wheel 41 can be made of elastic materials such as nitrile rubber (NBR) and polyurethane elastomer (PU).

[0065] The elastic wheel surface can buffer and limit the contact pressure between the guide wheel 41 and the honing stone through its own deformation, avoiding problems such as indentations and chipping on the side of the honing stone caused by rigid materials (such as metal) directly clamping the honing stone. At the same time, the elastic material has a certain deformation capacity, which can form a larger contact area with the side of the honing stone, thereby enhancing the friction between the wheel surface and the honing stone. Thus, even if there are slight unevennesses on the side of the honing stone, the elastic wheel surface can conform to the deformation, preventing slippage between the guide wheel and the honing stone, and ensuring that the honing stone is fed stably along the first horizontal direction. In addition, in actual processing, there may be a slight error of ±0.2mm in the width of the honing stone along the second horizontal direction. The elastic material wheel surface can adapt to this error through its own elastic expansion and contraction (e.g., the wheel surface slightly deforms and expands when the honing stone width is slightly larger, and the wheel surface rebounds to maintain clamping when it is slightly smaller), thereby improving the adaptability of the equipment to fluctuations in the size of the honing stone.

[0066] Optionally, the limiting device also includes two sets of limiting pads 42 arranged opposite each other along the second horizontal direction. The limiting pads 42 are arranged one-to-one with the limiting wheels 41. The limiting pads 42 are made of flexible material. One side of the limiting pad 42 abuts against the support device 10, and the other side is arranged in an arc shape to partially enclose the limiting wheels 41, so as to prevent the oilstone from falling out and to clean and protect the wheel surface.

[0067] Flexible materials can be made of high-density sponge (density 30-50 kg / m³). 3 ), soft silicone (Shore A hardness 20-30), etc.

[0068] For details, please refer to Figure 2 In the illustrated embodiment, two sets of limiting pads 42 are arranged symmetrically opposite each other on the left and right sides, corresponding one-to-one with two sets of limiting wheels 41 (i.e., the left wheel corresponds to the left limiting pad, and the right wheel corresponds to the right limiting pad). The side of the limiting pad 42 closest to the support device 10 is tightly abutted against the side of the support device 10 (the side of the support block 11 or the limiting block 12) to ensure its position is fixed; the other side closest to the limiting wheel 41 is processed into an arc-shaped concave structure, and the concave arc matches the outer circle arc of the limiting wheel 41, which can partially encompass the wheel surface of the limiting wheel 41 (the encompassing range is about 1 / 4 to 1 / 3 of the outer circle area of ​​the wheel). One set of limiting pads 42 consists of two symmetrically arranged pads, with a certain gap between the two pads, so that part of the wheel surface of the limiting wheel 41 can be exposed and in contact with the whetstone through the gap. The limiting pad 42 is located downstream of the propulsion device and upstream of the grinding device. It is in the "limiting section" of the oilstone travel path along the limiting wheel 41. When the oilstone passes through the two sets of limiting wheels 41 in the first horizontal direction, it passes through the area between the two sets of limiting pads 42 simultaneously.

[0069] The limiting wheel 41 can actively limit and assist feeding by rotating and clamping the oilstone. The limiting pad 42 passively protects and cleans the wheel surface of the limiting wheel 41 through a flexible arc structure, and laterally limits the oilstone by intercepting it from the side. The limiting wheel 41 and the limiting pad 42 work together to form a dual limiting system of "active limiting + passive protection", avoiding the limiting blind spots of a single structure (such as cleaning dead corners at the edge of the wheel surface, and obstruction by slight displacement of the oilstone).

[0070] During operation, the oilstone is pushed into the limiting device by the push rod 21. Both the limiting pad 42 and the limiting wheel 41 prevent the oilstone from shifting in the second horizontal direction, thus ensuring that the oilstone moves in the first horizontal direction. As the limiting wheel 41 rotates, its surface continuously rubs against the arc-shaped side of the limiting pad 42, and the pad can wipe away any residual abrasive particles from the wheel surface. After the oilstone has completely detached from the limiting device and entered the grinding device, the limiting pad 42 remains in its original position, continuously ensuring the limiting of the next oilstone and the cleaning of the wheel.

[0071] Optionally, the limited-feed oilstone surface finishing equipment provided in this application also includes a material frame 50, which is located downstream of the grinding device and below the support device. After the oilstone is ground, it can fall into the material frame 50 after leaving the grinding device along the support device.

[0072] For details, please refer to Figure 1 and Figure 2 In the illustrated embodiment, the material frame 50 is located downstream of the grinding device (along the first horizontal direction, on the side where the oilstone leaves the grinding device after grinding). The top of the material frame 50 is open, and the opening area faces the discharge end of the support device 10. The material frame 50 is lower than the support device 10, and the discharge end of the support device 10 is unobstructed. After the oilstone leaves the grinding device along the oilstone channel, it can fall naturally into the material frame 50 under the action of gravity.

[0073] The feed frame 5 automatically receives the oilstones after grinding, eliminating the need for workers to be stationed downstream of the grinding device to receive materials. Combined with the automated operation of the propulsion and grinding devices, it forms a complete automated process of "feeding-grinding-collecting," suitable for batch production of oilstones. Furthermore, the feed frame 50 centrally stores the finished oilstones, avoiding the hassle of tidying up scattered stones. Workers only need to periodically (e.g., when the frame is full) clean the finished oilstones from the feed frame 50 once, without having to pick them up piece by piece, significantly reducing manual labor intensity. This also facilitates subsequent unified inspection and packaging of the finished oilstones.

[0074] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A limited-feed, fine-grinding device for oilstone surface, characterized in that, include: The support device (10) includes a support block (11) and a limiting block (12) arranged opposite each other in the vertical direction, and an oilstone channel is formed between the support block (11) and the limiting block (12) for accommodating and guiding the movement of the oilstone in the first horizontal direction; A propulsion device, the propulsion device including a push rod (21) that can extend into the oilstone channel, the push rod (21) being used to push the oilstone along the oilstone channel; The grinding device is located on the path of the oilstone and downstream of the propulsion device. The grinding device includes two sets of grinding discs (31) arranged opposite each other along the second horizontal direction. The support device (10) passes between the two sets of grinding discs (31). The two sets of grinding discs (31) cooperate to grind the surface of the oilstone passing between them. The vertical direction, the first horizontal direction, and the second horizontal direction are all perpendicular to each other.

2. The limit-feed oilstone surface finishing equipment according to claim 1, characterized in that, Along the second horizontal direction, the width of the support block (11) and the limiting block (12) are both smaller than the width of the oilstone, thereby avoiding interference with the grinding disc (31).

3. The limit-feed oilstone surface finishing equipment according to claim 1, characterized in that, Along the vertical direction, the position of the support block (11) and / or the limiting block (12) is adjustable to accommodate oilstones of different heights or grinding requirements.

4. The limit-feed oilstone surface finishing equipment according to claim 1, characterized in that, The propulsion device further includes a push drive member for driving the push rod (21) to move along the first horizontal direction.

5. The limited-feed oilstone surface finishing equipment according to claim 4, characterized in that, The push rod (21) can be pushed intermittently or at a constant speed to adjust the grinding time of the oilstone.

6. The limit-feed oilstone surface finishing equipment according to claim 1, characterized in that, The grinding device also includes a grinding drive component, which is used to drive the grinding disc (31) to rotate; The grinding disc (31) is connected to the grinding drive through a detachable connection structure. The detachable connection structure includes a flange located at the output end of the grinding drive and a locking bolt passing between the flange and the grinding disc (31). By installing or removing the locking bolt, the grinding disc (31) can be easily replaced or its surface maintained. The grinding device also includes a speed adjustment module, which is electrically connected to the grinding drive and can adjust the rotation speed of the grinding disc (31) as needed. The speed adjustment range is 50-500 r / min.

7. The limited-feed oilstone surface finishing equipment according to any one of claims 1-6, characterized in that, It also includes a limiting device, which is located on the travel path of the oilstone, downstream of the propulsion device and upstream of the grinding device, and is used to limit the position of the oilstone and prevent the oilstone from leaving the oilstone channel. The limiting device includes: Two sets of limiting wheels (41) are arranged opposite each other along the second horizontal direction, and the support device passes between the two sets of limiting wheels (41); The limiting rotation drive is used to drive the two sets of limiting wheels (41) to rotate synchronously and in opposite directions; After the oilstone is pushed between the two sets of limiting wheels (41) by the push rod (21), the two sets of limiting wheels (41) can cooperate to clamp the oilstone and rotate to make the oilstone move toward the grinding device.

8. The limit-feed oilstone surface finishing equipment according to claim 7, characterized in that, The wheel surface of the limiting wheel (41) is made of elastic material.

9. The limit-feed oilstone surface finishing equipment according to claim 7, characterized in that, The limiting device also includes two sets of limiting pads (42) arranged opposite each other along the second horizontal direction, and the limiting pads (42) and the limiting wheels (41) are arranged in a one-to-one correspondence; The limiting pad (42) is made of flexible material; One side of the limiting pad (42) abuts against the support device (10), and the other side is arranged in an arc shape to partially enclose the limiting wheel (41) to prevent the oilstone from falling out and to clean and protect the wheel surface.

10. The limit-feed oilstone surface finishing equipment according to claim 1, characterized in that, It also includes a material frame (50), which is located downstream of the grinding device and below the support device. After the grinding stone leaves the grinding device along the support device, it can fall into the material frame (50).

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