Knife-sharpening machine

Abstract

The application discloses a knife grinder, which comprises a grinding tool moving platform, a knife tool carrying platform, a motor, a grinding tool, a knife tool clamping mechanism and a base; the grinding tool moving platform comprises a motor carrying part, a damping transmission belt part and a pulley part; the motor carrying part carries the motor; the motor carrying part is fixedly connected with the damping transmission belt part; the pulley part tensions the damping transmission belt part; the pulley part is connected with the damping transmission belt part; the knife tool clamping mechanism comprises an intermediate shaft, an intermediate shaft support, a clamp, an angle adjusting part, an angle positioning part and a locking part; the intermediate shaft support is connected with the intermediate shaft; the angle adjusting part is connected with the intermediate shaft, and the angle adjusting part can rotate relative to the base; the angle adjusting part carries the clamp; and the locking part can lock the clamp relative to the base. The application can guarantee the stability of the knife grinder.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tool sharpening, in particular to a tool sharpener. BACKGROUND

[0002] There is a strange phenomenon in the hardware cutting processing industry, many factories have tool sharpening equipment, but the tool sharpening equipment is idle, mainly because the current tool sharpening equipment is generally ineffective, and workers would rather sharpen tools manually. That is, the current tool sharpening equipment is not as effective as manual tool sharpening. Tool sharpening is a headache for most workers in the hardware cutting processing industry, and manual tool sharpening is a technical job that is difficult to master, with varying levels of tool sharpening, resulting in unstable manual tool sharpening.

[0003] The disclosure of the above background art content is only used to assist in understanding the inventive concept and technical solutions of the present application, and it does not necessarily belong to the prior art of the present application. In the absence of explicit evidence that the above content has been disclosed on the filing date of the present application, the above background art should not be used to evaluate the novelty and inventiveness of the present application. SUMMARY

[0004] The present application proposes a tool sharpener that can maximize the avoidance of vibration between the tool sharpener and the tool when the tool sharpener is mainly moved by the tool sharpener, and can ensure the stability of the tool sharpening.

[0005] A tool sharpener, comprising a tool moving platform, a tool mounting platform, a motor, a tool, a tool clamping mechanism and a base;

[0006] The motor has a rotating output shaft;

[0007] The tool is connected with the rotating output shaft;

[0008] The tool mounting platform carries the tool clamping mechanism;

[0009] The tool moving platform carries the motor;

[0010] The tool moving platform can move relative to the base to approach or move away from the tool clamping mechanism;

[0011] The tool moving platform comprises a motor mounting component, a damping transmission belt component and a pulley component;

[0012] The motor mounting component carries the motor; the motor mounting component is fixedly connected with the damping transmission belt component, so that the damping transmission belt component can drive the motor mounting component to move along a specified trajectory relative to the base;

[0013] The pulley component tensions the damping transmission belt component; the pulley component is connected with the damping transmission belt component to drive the damping transmission belt component to move;

[0014] The tool clamping mechanism comprises an intermediate shaft, an intermediate shaft support, a clamp, an angle adjusting component, an angle positioning component and a locking part;

[0015] The intermediate shaft support is connected with the intermediate shaft to support the intermediate shaft;

[0016] The angle adjusting component is connected with the intermediate shaft, and the angle adjusting component can rotate relative to the base to change the included angle between the angle adjusting component and the base;

[0017] The angle adjusting component carries the clamp;

[0018] The locking part can lock the clamp relative to the base.

[0019] In some preferred embodiments, the angle adjusting component is in shaft hole cooperation with the intermediate shaft.

[0020] In some preferred embodiments, the damping transmission belt component is a synchronous belt, and the pulley component is a synchronous pulley.

[0021] In some preferred embodiments, the abrasive tool moving platform further comprises an abrasive tool guide rail and an abrasive tool sliding block; the abrasive tool guide rail or the abrasive tool sliding block is fixedly connected with the motor mounting component; the abrasive tool guide rail cooperates with the abrasive tool sliding block to define the specified trajectory.

[0022] In some preferred embodiments, the abrasive tool moving platform further comprises a lower drag plate; the abrasive tool guide rail or the abrasive tool sliding block is fixedly connected with the lower drag plate.

[0023] In some preferred embodiments, the abrasive tool guide rail is a linear guide rail, the abrasive tool sliding block is a ball sliding block, and the linear guide rail and the ball sliding block form a linear ball sliding rail.

[0024] In some preferred embodiments, the tool clamping mechanism further comprises an angle positioning component; the angle positioning component is connected with the angle adjusting component to change the included angle between the angle adjusting component and the base.

[0025] In some preferred embodiments, the angle positioning component is a fastener; the fastener is located at one end of the angle adjusting component and changes the included angle between the angle adjusting component and the base by elongation or shortening.

[0026] In some preferred embodiments, the tool clamping mechanism further comprises a compensation feeding platform that can move relative to the base; the clamp is located above the compensation feeding platform.

[0027] In some preferred embodiments, the compensation feeding platform is a dovetail slide.

[0028] In some preferred embodiments, the tool mounting platform is a platform that enables the tool clamping mechanism to move relative to the base; specific forms of the tool mounting platform include a linear ball bearing slide platform and a dovetail slide platform.

[0029] Compared with the prior art, the present application has the following beneficial effects:

[0030] The wheel component tensioned damping transmission belt component drives the motor mounting component to move along a specified trajectory relative to the base in a tensioned state, so that the motor and the abrasive tool on the motor mounting component can approach the tool and achieve polishing and feeding; in the process of polishing and feeding, the vibration generated by the motor and the abrasive tool is absorbed by the damping transmission belt component in a tensioned state; the intermediate shaft support supports the intermediate shaft, the angle adjusting component that is in shaft hole cooperation with the intermediate shaft can rotate relative to the base, the included angle of the angle adjusting component relative to the base is changed, so that the included angle of the clamp supported on the angle adjusting component relative to the base is changed, and then the included angle of the tool fixed on the clamp relative to the base is changed, different angle parts on the tool can contact the abrasive tool, and the clamp is locked relative to the base by the locking part to avoid displacement of the clamp in the polishing process; in this way, the abrasive tool and the tool can be prevented from vibrating during polishing of the tool by the abrasive tool motion-based tool sharpener, the stability of the tool sharpener is ensured, the polished tool is sharp, durable and stable in cutting performance, the quality of the product is ensured, the frequency of tool sharpening and machine debugging is reduced, and the yield is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The structure schematic diagram of the tool sharpener of one embodiment of the present application is shown in the figure;

[0032] Figure 2 The structure schematic diagram of the tool sharpener of one embodiment of the present application is shown in the figure;

[0033] Figure 3 The structure schematic diagram of the tool clamping mechanism of one embodiment of the present application is shown in the figure;

[0034] Figure 4 The structure schematic diagram of the motor mounting component and the damping transmission belt component of one embodiment of the present application is shown in the figure;

[0035] Figure 5 The structure schematic diagram of the clamp and the tool of one embodiment of the present application is shown in the figure;

[0036] Figure 6 The structure schematic diagram of the clamp of one embodiment of the present application is shown in the figure;

[0037] Figure 7 This is a schematic diagram of the fixture according to another variation of an embodiment of the present invention. Detailed Implementation

[0038] To make the technical problems, technical solutions, and beneficial effects to be solved by the embodiments of the present invention clearer, the following is combined with Figures 1 to 7 The present invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0039] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] This embodiment provides a sharpening machine, specifically a non-automatic sharpening machine, for sharpening various cutting tools, such as lathe tools, drill bits, end mills, reamers, gun drills, etc., and is particularly suitable for sharpening flat drills, semi-circular drills, and center drills. Additionally, it can also sharpen workpieces within the sharpening range of this embodiment.

[0043] refer to Figures 1 to 3 The grinding machine in this embodiment includes a grinding wheel moving platform 1, a tool mounting platform 2, a motor 3, a grinding wheel 4, a tool clamping mechanism 5, and a base 6.

[0044] refer to Figure 1 and Figure 5The motor 3 drives the grinding wheel 4 to grind the cutting tool 100. The motor 3 has a rotating output shaft 31, and the grinding wheel 4 is fixed to the rotating output shaft 31 of the motor 3; thus, when the motor 3 rotates, the grinding wheel 4 also rotates, thereby grinding the cutting tool 100. In this embodiment, the grinding wheel 4 is a grinding wheel; of course, a safety cover can be set around the grinding wheel, for example, a semi-circular safety cover can be set above the grinding wheel. The grinding action refers to the grinding wheel 4, such as the grinding wheel, moving back and forth left and right or moving in one direction.

[0045] refer to Figure 1 The grinding wheel moving platform 1 is a platform that can move the grinding wheel 4 relative to the base 6, specifically along the Y-axis. Therefore, the grinding wheel moving platform 1 can also be called a Y-axis slide or a Y-axis moving platform. The grinding wheel moving platform 1 carries the motor 3. Since the grinding wheel 4 is fixed to the rotation output shaft 31 of the motor 3, when the grinding wheel moving platform 1 moves the motor 3, it will also move the grinding wheel 4, causing the grinding wheel 4 to move to the designated position to grind the tool 100.

[0046] The tool clamping mechanism 5 is used to clamp the tool 100, fixing its position for grinding. The tool mounting platform 2 supports the tool clamping mechanism 5.

[0047] The base 6 serves as the foundation of the entire grinding machine, supporting various components, including the grinding wheel moving platform 1, the tool mounting platform 2, the motor 3, the grinding wheel 4, and the tool clamping mechanism 5. There can be one or more bases 6; in the case of multiple bases 6, each base 6 is fixed to the ground.

[0048] The grinding machine in this embodiment adopts a grinding method of grinding wheel movement (i.e., grinding wheel 4 movement). When grinding the tool 100, the tool 100 is fixed on the tool clamping mechanism 5, and the motor 3 is started to drive the grinding wheel 4 to rotate. With the grinding wheel 4 rotating, the grinding wheel moving platform 1 moves the grinding wheel 4 relative to the base 6 along the Y-axis to be close to the tool 100, thereby grinding the tool 100.

[0049] In the grinding method of the grinding wheel movement in this embodiment, the grinding wheel 4 is active and the cutting tool 100 is passive. Therefore, the cutting tool 100 will be ground by the grinding wheel 4, and it is the cutting tool that needs to be ground. Thus, compared with the traditional grinding method of cutting tool movement (the cutting tool moves close to the grinding wheel), the grinding method of the grinding wheel movement in this embodiment has a better grinding effect, the grinding surface texture is clear and neat, and the grinding efficiency is also higher.

[0050] refer to Figure 1The mold moving platform 1 in this embodiment specifically includes a motor mounting component 11 and a vibration-damping transmission belt component 12. The motor mounting component 11 is an upper slide plate. The vibration-damping transmission belt component 12 is a belt-shaped component with vibration-damping function, preferably a synchronous belt, because synchronous belts can achieve precise and stable transmission and are flexible components. In other embodiments, the vibration-damping transmission belt component 12 is a conveyor belt.

[0051] The motor mounting component 11 carries the motor 3; specifically, the motor 3 is fixed to the upper slide plate, which serves as the motor mounting component 11, by fasteners such as screws (adjustable handle screws or ordinary screws).

[0052] refer to Figure 4 The motor mounting component 11 is fixedly connected to the vibration damping transmission belt component 12. For example, the back of the motor mounting component 11 is fixedly connected to the vibration damping transmission belt component 12. When the vibration damping transmission belt component 12, i.e. the synchronous belt, moves, it drives the motor mounting component 11 to move. Specifically, the vibration damping transmission belt component 12 drives the motor mounting component 11 to move relative to the base 6 along a specified trajectory.

[0053] refer to Figure 1 The grinding wheel moving platform 1 in this embodiment also includes a pulley component 13 and a grinding wheel handwheel 14, wherein the grinding wheel handwheel 14 is a Y-axis handwheel; specifically, the pulley component 13 is a synchronous pulley; in other embodiments, the pulley component 13 is a pulley. The grinding wheel handwheel 14 is connected to the pulley component 13 to drive the pulley component 13, and the pulley component 13 is also connected to the vibration damping transmission belt component 12; when the grinding wheel handwheel 14 is turned to move the pulley component 13, it drives the vibration damping transmission belt component 12 to move, thereby realizing the movement of the vibration damping transmission belt component 12. Of course, in other embodiments, the grinding wheel handwheel 14 is optional, for example, the vibration damping transmission belt component 12 can be moved directly by manually moving the motor-mounted component 11.

[0054] The synchronous pulley component 13 serves as the tensioning and vibration damping transmission belt component 12 (i.e., the synchronous belt); Reference Figure 4 For example, the vibration damping drive belt component 12 is a closed ring, and two pulley components 13 are arranged at both ends of the inner side of the vibration damping drive belt component 12 to tighten the vibration damping drive belt component 12, so that the shape of the vibration damping drive belt component 12 is racetrack-shaped.

[0055] refer to Figure 1 and Figure 4 The mold moving platform 1 also includes a mold guide rail 15 and a mold slider 16. The mold guide rail 15 or the mold slider 16 is fixedly connected to the motor mounting component 11, as long as it can slide. The mold guide rail 15 and the mold slider 16 cooperate to define the aforementioned specified trajectory; specifically, the mold guide rail 15 and the mold slider 16 can slide relative to each other along the specified trajectory.

[0056] refer toFigure 1 The grinding wheel moving platform 1 also includes a lower slide plate 17; the back of the lower slide plate 17 is fixedly connected to the base 6. The grinding wheel guide rail 15 or the grinding wheel slider 16 is fixedly connected to the lower slide plate 17. The grinding wheel guide rail 15 is a linear guide rail, and the grinding wheel slider 16 is a ball-bearing slider; thus, the linear guide rail and the ball-bearing slider form a linear ball-bearing slide rail; therefore, the grinding wheel moving platform 1 is a ball-bearing linear platform (i.e., a precision linear moving platform), and the aforementioned specified trajectory is a straight line. The use of a ball-bearing linear platform facilitates precise movement of the grinding wheel 4 and minimizes the center of gravity of the motor 3, which helps the motor 3 maintain stability during the grinding process.

[0057] refer to Figure 1 In this embodiment, the mold slider 16 is fixed on the front side of the lower slide plate 17; Reference Figure 5 The mold guide rail 15 is fixed to the back of the motor mounting component 11. The front of the lower slide plate 17 is directly opposite the back of the motor mounting component 11, so that the mold guide rail 15 and the mold slider 16 are located between the motor mounting component 11 (also called the upper slide plate) and the lower slide plate 17. Specifically, two mold sliders 16 are arranged as a group, and there are two groups of mold sliders 16 in total. For example, the two groups of mold sliders 16 are arranged in parallel front and back on the front of the lower slide plate 17, and one group of mold sliders 16 corresponds to one mold guide rail 15.

[0058] The grinding wheel moving platform 1 also includes adjusting shims. When the positional relationship between the cutting tool 100 and the grinding wheel 4 (grinding wheel) in the Z-axis direction is unfavorable for grinding, adjusting shims can be added or removed at the bottom of the grinding wheel moving platform 1 or the bottom of the motor 3 to adjust the positional relationship between the cutting tool 100 and the grinding wheel 4 in the Z-axis direction, so as to facilitate grinding. Of course, an angle adjusting base that can adjust the angle of the motor 3 around the Z-axis direction can also be provided, for example, by setting the angle adjusting base at the bottom of the motor 3. Here, the X-axis, Y-axis, and Z-axis are mutually perpendicular three-dimensional spatial coordinate axes.

[0059] refer to Figure 1 and Figure 3 The tool clamping mechanism 5 is used to position the tool 100 at the desired angle and position. The tool clamping mechanism 5 includes an intermediate shaft 51, an intermediate shaft support 52, a clamp 53, an angle adjustment component 54, an angle positioning component 55, a locking component 56, and a compensating feed platform 57 that can move relative to the base 6.

[0060] refer to Figure 3 The intermediate shaft bracket 52 is connected to the intermediate shaft 51, supporting the intermediate shaft 51. For example, there are two intermediate shaft brackets 52, each with shaft holes. The two ends of the intermediate shaft 51 are located in the shaft holes of the two intermediate shaft brackets 52, thus achieving fixation.

[0061] refer to Figure 3Angle adjustment component 54 is connected to intermediate shaft 51, for example, through a shaft-hole fit, so that the included angle of angle adjustment component 54 relative to base 6 can change. For example, angle adjustment component 54 is an angle adjustment plate, and angle adjustment component 54 has a semi-circular hole (also called a groove). Intermediate shaft 51 is embedded in the semi-circular hole of angle adjustment component 54 and fixed together, for example, by welding. There are two angle adjustment components 54, arranged side-by-side along the axial direction of intermediate shaft 51. Angle adjustment component 54 carries clamp 53. When the included angle of angle adjustment component 54 relative to base 6 changes, specifically when intermediate shaft 51 and angle adjustment component 54 rotate as a whole relative to intermediate shaft support 52, the included angle of clamp 53 relative to base 6 also changes. In other embodiments, intermediate shaft 51 is rotatably connected to the semi-circular hole of angle adjustment component 54, and angle adjustment is achieved by rotating angle adjustment component 54 relative to intermediate shaft 51.

[0062] refer to Figure 3 Angle positioning component 55 is connected to angle adjusting component 54 to change the included angle of angle adjusting component 54 relative to base 6. For example, angle positioning component 55 is a fastener, such as a screw with an internal hexagonal socket. One end of angle adjusting component 54, i.e., angle adjusting plate, has a corresponding threaded through hole. Angle positioning component 55 extends or retracts in the threaded through hole to achieve extension or shortening. Angle positioning component 55 supports one end of angle adjusting component 54, and the length of angle positioning component 55 protruding from angle adjusting component 54 determines the included angle of angle adjusting component 54 relative to base 6.

[0063] refer to Figure 3 By providing internal hexagonal screws as angle positioning components 55 at both ends of the angle adjustment component 54, the two ends of the angle adjustment component 54 are supported. With the intermediate shaft 51 as a fulcrum, the two ends of the angle adjustment component 54 cannot be rotated, thus locking the angle adjustment component 54.

[0064] The locking part 56 locks the clamp 53 relative to the base 6, ensuring that the clamp 53 will not shift even under stress during grinding. For example, the locking part 56 presses the clamp 53 against the angle adjustment member 54, thereby pressing the angle positioning member 55 on the angle adjustment member 54 to fix the angle adjustment member 54 to the base 6; thus, the clamp 53 can be locked. Further, refer to... Figure 3The angle adjustment component 54 has a positioning part 541 in the middle, which is specifically a T-shaped groove. The locking part 56 includes a lower part 561 and a locking head 562. The lower part 561 is a structure that can cooperate with the positioning part 541. For example, the lower part 561 is a square-headed round nut that can be put into the T-shaped groove (positioning part 541). The clamp 53 passes through the lower part 561 and is placed on the angle adjustment component 54. The locking head 562 presses it on the angle adjustment component 54. After the angle adjustment component 54 is pressed, it transmits the pressure to the angle positioning component 55, and then the angle positioning component 55 presses on the surface of the compensation feed platform 57. That is to say, the clamp 53, the angle adjustment component 54, the angle positioning component 55 and the locking part 56 are all located on the compensation feed platform 57.

[0065] It should be noted that in other embodiments, the angle positioning component 55 is optional. After the angle adjustment component 54 is in the designated position, the locking component 56 directly locks the angle adjustment component 54 relative to the base 6, and the included angle between the angle adjustment component 54 and the base 6 is fixed.

[0066] refer to Figure 3 , Figure 5 , Figure 6 and Figure 7 The clamp 53 is inserted into the lower part 561 of the locking part 56 and can rotate around the lower part 561 (which can be considered as rotation around the Z-axis). This allows for angle adjustment of the tool 100 in another direction. After angle adjustment in this direction is completed, the tool 100 is locked in place by the locking head 562. The angle adjustment of the angle adjustment component 54 and the angle adjustment of the clamp 53 around the locking part 56 can meet the angle adjustment requirements of most grinding tools. Of course, a third-direction angle adjustment can also be set, such as angle adjustment around the X-axis, and an X-axis clamp can be added accordingly based on the characteristics of the tool.

[0067] refer to Figure 5 , Figure 6 and Figure 7 In this embodiment, the clamp 53 on the tool clamping mechanism 5 is replaceable and can clamp various tools.

[0068] refer to Figure 1The fixture 53 is positioned on the compensating feed platform 57. Thus, the compensating feed platform 57 can drive the tool 100 on the fixture 53 to move relative to the base 6, for example, along the Y-axis. The compensating feed platform 57 is used to assist grinding: the grinding wheel 4 rotates but does not move, and after the tool 100 on the fixture 53 contacts the grinding wheel 4, it directly grinds by making a small feed in the Y-axis direction through the compensating feed platform 57. In this embodiment, the compensating feed platform 57 is a dovetail slide. The dovetail slide is made of cast iron, has a large self-weight and vibration absorption capacity, and strong load-bearing capacity, which can effectively reduce vibration and eliminate uncertainties during grinding. Furthermore, the dovetail slide, as the compensating feed platform 57, ensures that the other spatial positions and angles of the tool 100 remain unchanged.

[0069] In this embodiment, the tool mounting platform 2 is a platform that allows the tool clamping mechanism 5 to move relative to the base 6. Specifically, it is a platform that allows the tool clamping mechanism 5 to move relative to the base 6 along the X-axis, in order to achieve feed compensation or auxiliary grinding. (Reference) Figure 1 and Figure 2 The tool mounting platform 2 specifically includes a linear ball slide platform and a dovetail slide platform. The linear ball slide platform enables precise linear movement. The linear ball slide is installed inverted, which effectively prevents dust from entering precision components, facilitates the installation of dust covers, and increases rigidity by shortening the distance from the worktable surface of the tool mounting platform 2 to the contact surface between the slider and the guide rail.

[0070] refer to Figure 1The tool mounting platform 2 includes a tool mounting upper plate 21, a tool mounting lower plate 22, an elastic component 23, a hand-cranked lead screw 24, and a lead screw nut 25; wherein, the hand-cranked lead screw 24 is an X-axis lead screw. The tool clamping mechanism 5 is fixed to the surface of the tool mounting upper plate 21. The tool mounting upper plate 21 and the tool mounting lower plate 22 can move relative to each other. For example, the tool mounting lower plate 22 is fixed on the base 6, and a lead screw nut 25 is installed on the tool mounting lower plate 22. The hand-cranked lead screw 24 passes through the lead screw nut 25 and is rotatably mounted on the tool mounting upper plate 21 (for example, the hand-cranked lead screw 24 passes through a bearing provided on the tool mounting upper plate 21). Since the tool mounting lower plate 22 is fixed, when the hand-cranked lead screw 24 is cranked, the hand-cranked lead screw 24 carries the tool mounting upper plate 21 along the length direction of the hand-cranked lead screw 24 relative to the lead screw nut 25. 5. Movement; Thus, by cranking the hand crank screw 24, the upper tool mounting plate 21 can move relative to the lower tool mounting plate 22 in the direction defined by the hand crank screw 24, such as the X-axis; wherein, the length of the hand crank screw 24 satisfies the following condition: the front end of the hand crank screw 24 can reach the end face of the lower tool mounting plate 22, so that the lower tool mounting plate 22 blocks the upper tool mounting plate 21 from moving forward; thus, the tool mounting platform 2 achieves positioning, which can facilitate the grinding of tools with multiple symmetrical edges, such as drill bits and milling cutters, so that the two sides of the edge are symmetrical (such as the two sides of a flat drill are symmetrical).

[0071] In other embodiments, the lower tool mounting plate 22 is fixed on the base 6, and a lead screw nut 25 is installed on the upper tool mounting plate 21. A hand crank lead screw 24 passes through the lead screw nut 25 and is rotatably mounted on the lower tool mounting plate 22. By cranking the hand crank lead screw 24, the upper tool mounting plate 21 can move relative to the lower tool mounting plate 22 in the direction defined by the hand crank lead screw 24.

[0072] refer to Figure 1 The elastic component 23 of the tool mounting platform 2 is specifically a spring. One end of the elastic component 23 is fixed to the upper tool mounting plate 21, and the other end is fixed to the lower tool mounting plate 22. In this way, the tension of the elastic component 23 can eliminate the stroke gap between the upper tool mounting plate 21 and the lower tool mounting plate 22, such as the ball gap of the linear ball slide platform or the thread gap between the hand crank screw 24 and the screw nut 25, thereby achieving gap elimination treatment, so that the upper tool mounting plate 21 moves forward or backward without any gap, especially in the forward direction.

[0073] refer to Figure 1 The tool mounting platform 2 also includes a stroke indicator plate 26 and a blocking and positioning component 27. The stroke indicator plate 26 is fixedly connected to the tool mounting upper plate 21, and the hand crank screw 24 passes through the stroke indicator plate 26 and can rotate relative to the stroke indicator plate 26. The stroke indicator plate 26 has a scale that represents the number of rotations of the hand crank screw 24, which can indicate the stroke of the tool mounting upper plate 21. Of course, the positions where the scale needs to be set can be laser-marked.

[0074] The blocking and positioning component 27 is specifically a screw. The blocking and positioning component 27 is connected to the tool mounting plate 21, for example, via a stroke indicator plate 26, specifically by passing through a threaded hole in the stroke indicator plate 26. Furthermore, the length of the blocking and positioning component 27 is adjustable relative to the tool mounting plate 21, for example, by extending or retracting. When the tool mounting plate 21 moves forward along the X-axis, the blocking and positioning component 27 moves forward with it. The front end of the blocking and positioning component 27 is blocked by the front end face of the lower tool mounting plate 22, thus achieving positioning and preventing the tool mounting plate 21 from moving further forward, thereby fixing the entire tool mounting platform 2. To release the positioning and fixing, simply reverse the crank screw 24.

[0075] Furthermore, the blocking and positioning component 27 can also be set with a grinding amount. Specifically, after the tool 100 is fixed, the platforms are moved so that the tool rests against the grinding wheel surface, at which point the grinding wheel remains stationary. Then, the extension length of the blocking and positioning component 27 is adjusted so that the front end of the blocking and positioning component 27 just contacts the front end face of the tool mounting plate 22. The blocking and positioning component 27 is then moved back by a specified amount, such as 1 mm, thus setting a grinding amount of 1 mm. Then, the grinding machine is started, and the tool mounting plate 21 is fed forward until the front end of the blocking and positioning component 27 again touches the front end face of the tool mounting plate 22 and is blocked. The grinding wheel completes the grinding according to the set grinding amount, and the grinding wheel stops grinding the tool. This can improve the practicality of the product with a lower product cost.

[0076] The grinding machine in this embodiment adopts a grinding method that primarily involves the movement of the grinding tool 4 (such as a grinding wheel). The tool 100 remains stationary, performs only compensating feed, or performs auxiliary grinding in the X-axis direction.

[0077] refer to Figures 1 to 3The working process of the grinding machine in this embodiment is described below. The tool 100 to be ground is clamped at the required angle. If the stroke needs to be set, it can be set first. Then, the motor 3 is started according to the required grinding wheel rotation direction. The motor 3 can rotate in both directions. The X-axis handwheel screw (i.e., hand crank screw 24) is then driven to slowly bring the tool 100 closer to the grinding wheel (i.e., the grinding wheel 4). After the tool 100 contacts the grinding wheel, while the grinding wheel is rotating, the Y-axis handwheel (i.e., the grinding wheel handwheel 14) is manually rotated. The handwheel drives the synchronous pulley (i.e., the pulley component 13). The synchronous pulley drives the motor mounting component 11 via a synchronous belt (i.e., vibration damping transmission belt component 12). The motor mounting component 11 carries the motor 3 and the grinding wheel to perform grinding operations. Manually rotating the X-axis handwheel screw (i.e., hand crank screw 24) drives the tool mounting plate 21 (also known as the X-axis slide plate) to perform compensating feed or auxiliary grinding. The tool mounting plate 21 carries the tool clamping mechanism 5 and the tool 100 to perform compensating feed or auxiliary grinding. In this way, the Y-axis and X-axis work together to achieve grinding. After grinding the tool, the X-axis handwheel screw or Y-axis handwheel is driven to remove the tool from the grinding wheel, and then the machine is turned off. Compensating feed refers to the tool moving forward slightly to compensate for the part that has been ground away.

[0078] As described above, the pulley assembly 13 tensions the vibration-damping transmission belt assembly 12. The tensioned vibration-damping transmission belt assembly 12 drives the motor mounting assembly 11 to move relative to the base 6 along a designated trajectory. This allows the motor 3 and grinding wheel 4 on the motor mounting assembly 11 to approach the tool 100 and perform grinding and feeding. During grinding and feeding, the motor 3 and grinding wheel 4 move along the designated trajectory, such as a straight line, and will have inertia. During grinding and feeding, the vibrations generated by the motor 3 and grinding wheel 4 are absorbed by the tensioned vibration-damping transmission belt assembly 12. The intermediate shaft bracket 52 supports the intermediate shaft 51, and the angle adjustment assembly 54, which has a shaft hole fit with the intermediate shaft 51, can rotate relative to the base 6. Changing the angle between the angle adjustment assembly 54 and the base 6 allows for... When the angle between the clamp 53, which is supported on the angle adjustment component 54, and the base 6 changes, the angle between the tool 100, which is fixed on the clamp 53, and the base 6 also changes. Different angled portions of the tool 100 can then contact the grinding wheel 4. The locking component 56 then locks the clamp 53 relative to the base 6, for example, pressing it firmly against the angle adjustment component 54, preventing displacement of the clamp 53 during grinding. This minimizes vibration between the grinding wheel 4 and the tool 100 during grinding, ensuring grinding stability and guaranteeing a sharp, durable, and stable cutting performance of the ground tool 100. This also ensures product quality, reduces the frequency of grinding and machine adjustments, and increases production output. Furthermore, reduced grinding frequency extends tool life and lowers tool costs.

[0079] In this embodiment, the grinding wheel moving platform 1 of the sharpening machine uses a vibration-damping transmission belt component 12 and a linear ball bearing slide rail, while the tool mounting platform 2 is a linear ball bearing slide rail platform. Combined with the tool clamping mechanism 5, this minimizes the clamping height of the tool 100 and the grinding wheel 4. The lower the clamping height, the lower the contact point between the tool 100 and the grinding wheel 4, resulting in less stress on the working surfaces of the grinding wheel moving platform 1 and the tool mounting platform 2 during grinding. The motor 3 and the grinding wheel 4 are mounted on a precision moving platform (i.e., the grinding wheel moving platform 1) and moved by the vibration-damping transmission belt component 12 (i.e., a synchronous belt), resulting in very smooth movement. This reduces vibration and instability. Furthermore, the main control operation of the sharpening machine in this embodiment involves cranking the hand crank screw 24 and the grinding wheel handwheel 14, making operation convenient and simple.

[0080] The sharpening machine of this embodiment can sharpen tools such as drill bits with a diameter of less than 1 mm, and the sharpening effect is good.

[0081] Compared to the inconsistent results of manual sharpening, the sharpening machine in this embodiment produces exceptionally good results, sharpening knives that are sharp, durable, and have standard geometric shapes. This overcomes the previous situation where machine sharpening was inferior to manual sharpening, making the sharpening effect of the machine far superior to manual sharpening.

[0082] The sharpening machine of this embodiment eliminates unstable factors such as vibration, resulting in a stable sharpening effect. This significantly reduces the workload for workers in the metal cutting industry, enabling them to easily sharpen high-quality tools. Because the sharpening machine of this embodiment is highly effective and easy to operate, it allows machining operators to forgo manual sharpening and instead use this machine for sharpening.

[0083] Currently, the grinding equipment in industries such as automatic lathes, conventional lathes, and CNC lathes is rudimentary (manual grinding machines) or lacks specialized grinding machines, with manual grinding being the primary method. The grinding machine described in this embodiment is specifically designed for machining equipment such as automatic lathes, conventional lathes, and CNC lathes, filling a gap in the aforementioned industry.

[0084] Automated sharpening equipment is suitable for the mass production of standard cutting tools, such as drill bits and end mills. It is primarily used by tool manufacturers, but the equipment is expensive, requires programming and setup, and necessitates professional operation. In contrast, the sharpening machine described in this embodiment is suitable for grinding and reflashing various cutting tools, such as temporary sharpening on-site in hardware processing enterprises or reflashing worn non-standard tools. It is primarily used by machining companies, has a lower equipment cost, is simple to operate, and can be used immediately upon arrival. It requires no programming or setup and is generally usable by machining personnel.

[0085] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the inventive concept, and all such substitutions or modifications should be considered within the scope of protection of the present invention.

Claims

1. A knife-sharpening machine characterized by: The grinding tool moving platform, the cutter carrying platform, the motor, the grinding tool, the cutter clamping mechanism and the base are included. The motor has a rotating output shaft; The grinding tool is connected with the rotating output shaft; The cutter carrying platform carries the cutter clamping mechanism; The grinding tool moving platform carries the motor; The grinding tool moving platform can move relative to the base to approach or move away from the cutter clamping mechanism; The grinding tool moving platform includes a motor carrying part, a damping transmission belt part and a pulley part; The motor carrying part carries the motor; the motor carrying part is fixedly connected with the damping transmission belt part, so that the damping transmission belt part can drive the motor carrying part to move along a specified track relative to the base; The pulley part tensions the damping transmission belt part; the pulley part is connected with the damping transmission belt part to drive the damping transmission belt part to move; The cutter clamping mechanism includes an intermediate shaft, an intermediate shaft support, a clamp, an angle adjusting part, an angle positioning part and a locking part; The intermediate shaft support is connected with the intermediate shaft to support the intermediate shaft; The angle adjusting part is connected with the intermediate shaft; the angle adjusting part can rotate relative to the base to change the included angle of the angle adjusting part relative to the base; The angle adjusting part carries the clamp; The locking part can lock the clamp relative to the base; The damping transmission belt part is a synchronous belt, and the pulley part is a synchronous pulley. The pulley part tensions the damping transmission belt part. The damping transmission belt part in the tensioned state drives the motor carrying part to move along a specified track relative to the base, so that the motor and the grinding tool on the motor carrying part can approach the cutter and realize polishing and feeding. The motor and the grinding tool move along the specified track during polishing and feeding, and have inertia. During polishing and feeding, the vibration generated by the motor and the grinding tool is absorbed by the damping transmission belt part in the tensioned state. The intermediate shaft support supports the intermediate shaft. The angle adjusting part which is in shaft hole cooperation with the intermediate shaft can rotate relative to the base to change the included angle of the angle adjusting part relative to the base. The clamp carried on the angle adjusting part changes the included angle relative to the base. The cutter fixed on the clamp also changes the included angle relative to the base. Different parts of the cutter at different angles can contact the grinding tool. The locking part locks the clamp relative to the base on the angle adjusting part to avoid displacement of the clamp during polishing. The grinding tool moving platform further includes a grinding tool guide rail and a grinding tool sliding block. The grinding tool guide rail is a linear guide rail. The grinding tool sliding block is a ball sliding block. The linear guide rail and the ball sliding block form a linear ball sliding rail. The cutter clamping mechanism further includes a compensation feeding platform which can move relative to the base. The clamp is located on the compensation feeding platform. The compensation feeding platform is a dovetail sliding table. The angle adjusting part is in shaft hole cooperation with the intermediate shaft. The specific form of the cutter carrying platform includes a linear ball sliding rail platform and a dovetail sliding rail platform, which can move the cutter clamping mechanism relative to the base.

2. The machine of claim 1 wherein: The grinding tool guide rail or the grinding tool sliding block is fixedly connected with the motor mounting component; the grinding tool guide rail cooperates with the grinding tool sliding block to define the specified track.

3. The machine of claim 2 wherein: The grinding tool moving platform further comprises a lower drag plate; the grinding tool guide rail or the grinding tool sliding block is fixedly connected with the lower drag plate.

4. The machine of claim 1 wherein: The tool clamping mechanism further comprises an angle positioning component; the angle positioning component is connected with the angle adjusting component to change the included angle of the angle adjusting component relative to the base.

5. The machine of claim 4 wherein: The angle positioning component is a fastener; the fastener is located at one end of the angle adjusting component and changes the included angle of the angle adjusting component relative to the base by elongation or shortening.

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