Grinding equipment

Abstract

This utility model relates to the field of deep hole grinding technology and discloses a grinding equipment. The grinding equipment is used to grind the inner wall of a vehicle frame seat tube. The grinding equipment includes a frame, a fixture, and a grinding assembly. The fixture is used to clamp the vehicle frame seat tube and is movably connected to the frame to drive the vehicle frame seat tube to move and feed along the tube wall thickness direction. The grinding assembly includes a cutting tool movably connected to the frame. The cutting tool is used to reciprocate and slide along the tube depth direction of the vehicle frame seat tube to grind the inner wall of the vehicle frame seat tube, thereby realizing the grinding of the inner wall of the vehicle frame seat tube.

Description

Technical Field

[0001] This utility model relates to the field of deep hole grinding technology, and in particular to a grinding equipment. Background Technology

[0002] Deep hole grinding presents numerous challenges. In terms of grinding tools, due to the large length-to-diameter ratio of the workpiece during deep hole machining, a longer tool holder is required to match the hole depth. However, an excessively long tool holder reduces the overall strength of the tool, making it prone to chatter and dimensional fluctuations during rotary grinding. This places very high demands on the strength of the tool holder; otherwise, tool holder deformation is likely to occur during grinding. Consequently, current standard tools are unable to complete the grinding process for small radius angles in deep holes.

[0003] In the grinding process of bicycle frame seatposts, due to the irregular shape of the tube hole and the large length-to-diameter ratio of the seatpost, it is difficult to complete the grinding process using standard tools. Utility Model Content

[0004] The main purpose of this utility model is to provide a grinding device for grinding the inner wall of the seat tube of a bicycle frame.

[0005] To achieve the above objectives, the present invention proposes a grinding device for grinding the inner wall of a vehicle frame seat tube, the grinding device comprising: frame; A clamp is used to clamp the frame seat tube and is movably connected to the frame to drive the frame seat tube to move and feed along the tube wall thickness direction; A grinding assembly, comprising a cutting tool movably connected to the frame, the cutting tool being used to reciprocate and slide along the depth direction of the seat tube of the frame to grind the inner wall of the seat tube of the frame.

[0006] In one embodiment, the grinding assembly further includes a slider and a drive element; The cutting tool is disposed on the slider; The slider is movably connected to the frame rail groove; The drive unit is located on the frame and can drive the slider to move relative to the frame.

[0007] In one embodiment, the cutting tool includes a tool holder and a cutting head; The cutter bar is connected to the slider; The cutting head is connected to the cutting bar and located at the end of the cutting bar away from the slider. The cutting head is used to grind the inner wall of the frame seat tube.

[0008] In one embodiment, the cutting head is a sand-plated cutting head.

[0009] In one embodiment, the grinding assembly further includes a cover that connects to the frame and encloses the frame to form a protective space; The slider, the connection between the drive and the slider, and the connection between the slider and the cutter are all located within the protective space.

[0010] In one embodiment, the frame is formed with a groove; The clamp is movably connected to the wall of the chute.

[0011] In one embodiment, the clamp has a connecting end and a clamping end arranged opposite to each other; The connecting end is movably connected to the groove wall of the slide, and the clamping end is used to clamp the frame seat tube.

[0012] In one embodiment, the grinding equipment further includes a cutting fluid circulation system, which includes a fluid outlet, a collection component, and a conveying component. The liquid outlet is connected to the frame, and the liquid outlet of the liquid outlet faces the intersection of the strokes of the clamp and the grinding assembly; The collection component is connected to the frame and is used to collect cutting fluid; The conveying component is connected to the collecting component and is used to deliver cutting fluid to the discharging component.

[0013] In one embodiment, the collecting device includes a water collection tank and a water storage cavity, the water collection tank having a water outlet. The outer wall of the water collection tank is connected to the frame, the water outlet is located on the bottom wall of the water collection tank, and the bottom wall of the water collection tank is inclined from the edge toward the water outlet. The water storage cavity is connected to the water outlet.

[0014] In one embodiment, the conveying component includes a conveying pipe and a conveying pump; The delivery pipes are respectively connected to the delivery pump and the liquid outlet; The delivery pump is located inside the collection unit and is used to pump cutting fluid to the outlet unit.

[0015] In the technical solution of this utility model, the seat tube of the frame is fixed on a fixture, and the fixture is adjusted to be located on the active stroke of the grinding assembly. The grinding assembly grinds the inner wall of the seat tube of the frame through reciprocating motion. The position of the fixture on the active stroke of the grinding assembly is further adjusted for feeding, which accelerates the formation of the specified shape on the inner wall of the seat tube of the frame. Compared with the traditional method of grinding by rotating the tool, this grinding equipment has reduced requirements for the strength and precision of the tool, and is less prone to tool bending and breakage, thereby realizing the grinding process of the inner wall of the seat tube of the frame. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of an embodiment of the grinding equipment provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the first part of the embodiment; Figure 3 for Figure 1 A schematic diagram of the second part of the structure in the embodiment.

[0018] Explanation of icon numbers: 100. Grinding equipment; 1. Frame; 2. Fixture; 21. Connecting end; 22. Clamping end; 3. Grinding assembly; 31. Cutting tool; 311. Tool holder; 312. Tool head; 32. Slider; 4. Collector; 41. Water collection tank; 411. Water outlet; 42. Water storage cavity; 200. Chassis seat tube.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] This utility model proposes a grinding device 100. Figures 1 to 3 This is one embodiment of the present utility model.

[0024] In this embodiment of the utility model, the grinding equipment 100 includes a frame 1, a clamp 2, and a grinding assembly 3. The clamp 2 is used to clamp the frame seat tube 200 and is movably connected to the frame 1 to drive the frame seat tube 200 to move and feed along the tube wall thickness direction. The grinding assembly 3 includes a cutting tool 31 movably connected to the frame 1. The cutting tool 31 is used to reciprocate and slide along the tube depth direction of the frame seat tube 200 to grind the inner tube wall of the frame seat tube 200.

[0025] In the technical solution of this utility model, the frame seat tube 200 is fixed on the clamp 2, and the clamp 2 is adjusted to be located on the active stroke of the grinding assembly 3. The grinding assembly 3 grinds the inner wall of the frame seat tube 200 through reciprocating motion. The position of the clamp 2 on the active stroke of the grinding assembly 3 is further adjusted for feeding, which accelerates the formation of the specified shape on the inner wall of the frame seat tube 200. Compared with the traditional method of grinding by rotating the tool 31, the grinding equipment 100 has reduced requirements for the strength and precision of the tool 31, and is less likely to cause the tool 31 to bend or break, thereby realizing the grinding process of the inner wall of the frame seat tube 200.

[0026] For the small radius of the tube hole of the seat tube 200, a tool 31 with the same radius can be used.

[0027] In one embodiment, the grinding assembly 3 further includes a slider 32 and a drive member. The cutting tool 31 is disposed on the slider 32, and the slider 32 is movably connected to the track groove of the frame 1. The drive member is disposed on the frame 1 and can drive the slider 32 to move relative to the frame 1. The drive member provides the power source for the grinding action of the cutting tool 31. Compared with the problem of ambiguous power transmission in traditional equipment, the power control of the grinding process of the grinding equipment 100 is more precise, which helps to reduce chatter and dimensional fluctuations caused by unstable power and improve grinding accuracy. The frame 1 is slidably connected to the track groove of the slider 32, and the slider 32 connects to the cutting tool 31, making the reciprocating motion of the cutting tool 31 more stable, effectively limiting the radial displacement of the cutting tool 31, significantly reducing chatter caused by the shaking of the cutting tool 31 during the grinding process, and further improving the accuracy of the grinding action.

[0028] In one embodiment, the cutting tool 31 includes a tool shank 311 and a cutting head 312. The tool shank 311 is connected to the slider, and the cutting head 312 is connected to the tool shank 311 and located at the end of the tool shank 311 away from the slider. The cutting head 312 is used to abut against and grind the inner wall of the frame seat tube 200. The cutting head 312 is located at the end of the tool shank 311 away from the slider, ensuring that the cutting head 312 can penetrate deep into the hole to complete the grinding operation. This clarifies that the cutting head 312 performs reciprocating motion to grind the inner wall while abutting against it, providing a clear direction for optimizing the strength of the tool shank 311. This effectively alleviates the problem of easy deformation of the tool shank 311 in standard cutting tools 31 and improves the stability of the cutting tool 31 in deep hole grinding.

[0029] In one embodiment, the cutting head 312 is a sand-plated cutting head. Sand-plated cutting heads have higher hardness and wear resistance. Compared to ordinary cutting heads 312, they can maintain more stable cutting performance during friction grinding with the irregular hole walls of deep, irregularly shaped holes, reducing dimensional fluctuations caused by cutting head 312 wear. The use of sand-plated cutting heads 312 solves the problems of rapid tool wear and difficulty in maintaining machining accuracy in the machining of deep, irregularly shaped holes, improving the processing efficiency of the equipment and the workpiece qualification rate.

[0030] In one embodiment, the grinding assembly 3 further includes a protective cover, which connects to the frame 1 and encloses the frame 1 to form a protective space. The slider 32, the connection between the drive component and the slider 32, and the connection between the slider 32 and the cutting tool 31 are all located within the protective space. The protective cover protects the connection between the slider 32 and the frame 1, the connection between the drive component and the slider 32, and the connection between the slider 32 and the cutting tool 31, preventing material debris generated during grinding from entering these connections and affecting the normal grinding function of the grinding assembly 3, thus ensuring the normal implementation of the grinding process.

[0031] In one embodiment, the frame 1 has a groove, and the clamp 2 is movably connected to the groove wall. This movable connection provides stable guidance for the clamp 2's movement, ensuring the straightness of the frame seat tube 200 when the clamp 2 moves. Combined with the guiding structure of the grinding assembly 3, the relative movement of the workpiece and the cutting tool 31 is kept within a controllable range, avoiding grinding errors caused by workpiece movement deviation, and providing dual guiding protection for precise machining of irregular deep holes.

[0032] In one embodiment, the clamp 2 has a connecting end 21 and a clamping end 22 arranged opposite to each other. The connecting end 21 is movably connected to the wall of the slide groove, and the clamping end 22 is used to clamp the seat tube 200. The connecting end 21 cooperates with the slide groove to guide the movement, while the clamping end 22 focuses on fixing the seat tube 200. The connecting end 21 and the clamping end 22 do not interfere with each other, resulting in a more reasonable structure. The fixture also includes a drive component to control the overall feed rate and cutting accuracy through programming. The drive component can be a cylinder, etc.

[0033] In one embodiment, the grinding equipment 100 further includes a cutting fluid circulation system. The cutting fluid circulation system includes a dispensing component, a collecting component 4, and a conveying component. The dispensing component is connected to the frame 1, and its outlet faces the intersection of the strokes of the clamp 2 and the grinding assembly 3. The collecting component 4 is connected to the frame 1 and is used to collect the cutting fluid. The conveying component is connected to the collecting component 4 and is used to deliver the cutting fluid to the dispensing component. Through the cooperation of the dispensing component, the collecting component 4, and the conveying component, precise supply, effective collection, and recycling of the cutting fluid are achieved. The outlet facing the intersection of the strokes of the clamp 2 and the grinding assembly 3 can directly cool and lubricate the grinding area, reducing the impact of grinding temperature on the tool 31 and the workpiece, and reducing thermal deformation. The collecting component 4 and the conveying component solve the problems of cutting fluid waste and pollution. Simultaneously, the continuous supply of cutting fluid can improve the grinding surface quality, extend the service life of the tool 31, and improve the processing and supporting functions of the equipment.

[0034] In one embodiment, the collecting component 4 includes a water collecting tank 41 and a water storage cavity 42. The water collecting tank 41 has a water outlet 411. The outer wall of the water collecting tank 41 is connected to the frame 1. The water outlet 411 is located on the bottom wall of the water collecting tank 41. The bottom wall of the water collecting tank 41 is inclined from the edge toward the water outlet 411. The water storage cavity 42 communicates with the water outlet 411. The water collecting tank 41 utilizes gravity to allow the cutting fluid to flow more smoothly to the water outlet 411 and into the water storage cavity 42, improving the collection efficiency of the cutting fluid. It also avoids the deterioration and waste caused by the accumulation of cutting fluid in the tank, ensuring the stable operation of the circulation system and providing a reliable guarantee for the continuous supply of cutting fluid, further improving the practicality and economy of the equipment.

[0035] In one embodiment, the conveying component includes a conveying pipe and a conveying pump. The conveying pipe connects the conveying pump and the outlet, respectively. The conveying pump is located within the collecting component 4 and is used to pump cutting fluid to the outlet. The cutting fluid is conveyed from the collecting component 4 to the outlet through the conveying pipe, forming a complete circulation loop. The conveying pump provides power for the delivery of the cutting fluid, ensuring that the cutting fluid can be delivered to the grinding area at sufficient pressure to meet cooling and lubrication requirements. The connection design of the conveying pipe ensures the sealing of the conveying process, preventing cutting fluid leakage and making the entire circulation system more efficient and reliable, supporting continuous and stable processing of the equipment.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A grinding apparatus for grinding the inner wall of a vehicle frame seat tube, characterized in that, The grinding equipment includes: frame; A clamp is used to clamp the frame seat tube and is movably connected to the frame to drive the frame seat tube to move and feed along the tube wall thickness direction; A grinding assembly, comprising a cutting tool movably connected to the frame, the cutting tool being used to reciprocate and slide along the depth direction of the seat tube of the frame to grind the inner wall of the seat tube of the frame.

2. The grinding equipment as described in claim 1, characterized in that, The grinding assembly also includes a slider and a drive component; The cutting tool is disposed on the slider; The slider is movably connected to the frame rail groove; The drive unit is located on the frame and can drive the slider to move relative to the frame.

3. The grinding equipment as described in claim 2, characterized in that, The cutting tool includes a tool holder and a cutting head; The cutter bar is connected to the slider; The cutting head is connected to the cutting bar and located at the end of the cutting bar away from the slider. The cutting head is used to grind the inner wall of the frame seat tube.

4. The grinding equipment as described in claim 3, characterized in that, The cutting head is a sand-plated cutting head.

5. The grinding equipment as described in claim 2, characterized in that, The grinding assembly also includes a cover, which is connected to the frame and encloses the frame to form a protective space; The slider, the connection between the drive and the slider, and the connection between the slider and the cutter are all located within the protective space.

6. The grinding equipment as described in any one of claims 1 to 5, characterized in that, The frame is formed with a sliding groove; The clamp is movably connected to the wall of the chute.

7. The grinding equipment as described in claim 6, characterized in that, The clamp has a connecting end and a clamping end that are arranged opposite to each other; The connecting end is movably connected to the groove wall of the slide, and the clamping end is used to clamp the frame seat tube.

8. The grinding equipment as described in any one of claims 1 to 5, characterized in that, The grinding equipment also includes a cutting fluid circulation system, which includes a fluid outlet, a collection component, and a conveying component. The liquid outlet is connected to the frame, and the liquid outlet of the liquid outlet faces the intersection of the strokes of the clamp and the grinding assembly; The collection component is connected to the frame and is used to collect cutting fluid; The conveying component is connected to the collecting component and is used to deliver cutting fluid to the discharging component.

9. The grinding equipment as described in claim 8, characterized in that, The collecting device includes a water collecting tank and a water storage cavity, and the water collecting tank has a water outlet. The outer wall of the water collection tank is connected to the frame, the water outlet is located on the bottom wall of the water collection tank, and the bottom wall of the water collection tank is inclined from the edge toward the water outlet. The water storage cavity is connected to the water outlet.

10. The grinding equipment as described in claim 8, characterized in that, The conveying component includes a conveying pipe and a conveying pump; The delivery pipes are respectively connected to the delivery pump and the liquid outlet; The delivery pump is located inside the collection unit and is used to pump cutting fluid to the outlet unit.

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