A clamping jig for a grinding blade

CN224390802UActive Publication Date: 2026-06-23PRINX CHENGSHAN (SHANDONG) TIRE COMPANY LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PRINX CHENGSHAN (SHANDONG) TIRE COMPANY LTD
Filing Date
2025-06-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing surface grinders often suffer from inaccurate positioning of the clamping fixture during cutting tool grinding, making it impossible to effectively adjust the angle. This results in inaccurate grinding position, affecting grinding accuracy and effectiveness.

Method used

A clamping fixture comprising a support assembly and an adjustment assembly was designed. It is connected by a magnetic chuck and uses an adjuster and gear set to adjust the angle of the blade fixing plate. The blade is fixed with a wing nut, which enhances the flexibility and accuracy of angle adjustment.

Benefits of technology

It improves the flexibility and precision of angle adjustment when grinding blades, enhances the equipment's ability to adapt to different grinding needs, and improves grinding accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of clamping jig for grinding blade, including support assembly and adjust fixed component, support assembly includes the base seat for connecting the body of surface grinder and the fixed base for supporting fixed adjust fixed component, fixed base is set to the upper portion of base seat, adjust fixed component includes blade fixed plate and regulator, blade fixed plate is installed on fixed base by regulator, under the action of regulator, blade fixed plate can do preset angle's rotary motion.The utility model sets up support assembly and adjust fixed component, allow blade fixed plate to do preset angle's rotary motion under the action of regulator, improve the flexibility of angle adjustment when grinding blade, enhance the ability of equipment to adapt different grinding needs, can be widely applied in the clamping of grinding tool in surface grinder.
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Description

Technical Field

[0001] This utility model relates to the field of lathe tool assembly technology, and in particular to a clamping fixture for grinding cutting tools. Background Technology

[0002] Surface grinders are widely used in the machining industry, primarily for precision surface grinding of workpieces. Because surface grinders need to ensure dimensional consistency across a batch of parts during processing, the positioning accuracy of the cutting tools is critical. However, in existing surface grinders, the grinding wheel is fixed vertically downwards, and the grinding inserts sometimes need to be angled to complete the grinding process. If the clamping fixture is not accurately positioned for the grinding inserts, and the various angles cannot be effectively adjusted, inaccurate grinding positions will occur, potentially leading to misalignment, affecting grinding accuracy and effectiveness, and consequently impacting the mass production of the inserts.

[0003] In view of this, the present invention proposes a clamping fixture for grinding blades. Utility Model Content

[0004] The present invention aims to overcome the shortcomings of the above-mentioned technologies, improve the accuracy of the rotation and positioning of the grinding blade clamping fixture, effectively achieve the adjustment of various angles, improve the accuracy of the grinding position, and improve the grinding precision and grinding effectiveness. The present invention provides a clamping fixture for grinding blades.

[0005] The specific details of the technical solution provided by this utility model are as follows:

[0006] A clamping fixture for grinding cutting tools includes a support assembly and an adjustment assembly. The support assembly includes a base for connecting to the body of a surface grinder and a fixed base for supporting and fixing the adjustment assembly. The fixed base is disposed on the upper part of the base. The adjustment assembly includes a cutting tool fixing plate and an adjuster. The cutting tool fixing plate is mounted on the fixed base through the adjuster. Under the action of the adjuster, the cutting tool fixing plate can rotate at a preset angle.

[0007] Furthermore, a magnetic chuck is provided on the surface grinder body, and a base is connected to the magnetic chuck. The base and the magnetic chuck are connected and released by magnetic force.

[0008] Furthermore, the base is rectangular in shape, and the end of the base connected to the fixed base has an opening, and a mounting groove is formed by extending a preset height along the opening end.

[0009] Furthermore, the fixed base is set in the mounting groove, one end of the fixed base is connected to the bottom plate of the mounting groove, and the other end is connected to the adjustment and fixing component; the fixed base includes a first fixed base and a second fixed base, and a blade fixing plate is provided between the first fixed base and the second fixed base.

[0010] Furthermore, the blade fixing plate is rotatably connected to the first fixing base at one end via a plate end shaft, and rotatably connected to the second fixing base at the other end.

[0011] Furthermore, the adjuster includes a cover plate, a gear set, a compression spring, and a rotating handle. A gear set is arranged between the cover plates. One end of the gear set is connected to the rotating handle, and the other end is connected to the compression spring. External driving force drives the rotating handle to achieve linkage between the gear set and the compression spring, thereby realizing the angle adjustment of the blade fixing plate.

[0012] Furthermore, the cover plate includes a first cover plate and a second cover plate located on both sides of the gear set. The first cover plate has a rotating handle on the far side of the blade fixing plate and a gear set connected to the near side of the first cover plate. The second cover plate has a compression spring connected to the far side of the blade fixing plate and a plate end shaft for mounting the blade fixing plate connected to the near side of the second cover plate.

[0013] Furthermore, the gear set includes a first gear and a second gear. The first gear is mounted on the first cover plate, and the second gear is connected to a rotating handle via a drive shaft. The first gear and the second gear control the rotation and stopping of the gear set by whether they are engaged or not.

[0014] Furthermore, the blade holder plate is provided with a blade to be ground, and the blade holder plate is connected to the blade to be ground by fasteners.

[0015] Furthermore, the fastener is a wing nut.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] By setting up the support assembly and the fixing assembly, the blade fixing plate is allowed to rotate at a preset angle under the action of the adjuster, which improves the flexibility of angle adjustment when grinding blades and enhances the equipment's ability to adapt to different grinding needs.

[0018] The adjuster includes components such as a cover plate, gear set, compression spring, and rotating handle. The angle of the blade fixing plate is adjusted by driving the rotating handle. When an external force is applied to the rotating handle, the gear set teeth separate and begin to rotate. When the external force is removed, the teeth mesh and the rotation stops, allowing users to precisely control the grinding angle according to actual needs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the clamping fixture for grinding blades in this utility model;

[0020] Figure 2 This is an overall schematic diagram of the clamping fixture after installation in this utility model;

[0021] Figure 3 This is another overall schematic diagram of the clamping fixture after installation in this utility model;

[0022] Figure 4 This is a partial enlarged view of the rotating handle in this utility model.

[0023] Marked in the image:

[0024] 1. Surface grinder body; 11. Magnetic chuck;

[0025] 2. Bracket assembly; 21. Base; 211. Mounting slot; 22. Fixed base; 221. First fixed base; 222. Second fixed base;

[0026] 3. Adjustment assembly; 31. Blade retaining plate; 32. Adjuster; 321. Rotating handle; 322. Base plate; 323. Hand handle; 324. Angle scale lines; 325. Angle indicator lines;

[0027] 4. Blade to be sharpened;

[0028] 5. Grinding wheel. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "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 this utility model 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 this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Depend on Figures 1-3As shown, this utility model provides a clamping fixture for grinding cutting tools, including a support assembly 2 and an adjustment and fixing assembly 3. The support assembly 2 includes a base 21 for connecting the surface grinder body 1 and a fixed base 22 for supporting and fixing the adjustment and fixing assembly 3. The fixed base 22 is disposed on the upper part of the base 21. The adjustment and fixing assembly 3 includes a cutting tool fixing plate 31 and an adjuster 32. The cutting tool fixing plate 31 is installed on the fixed base 22 through the adjuster 32. Under the action of the adjuster 32, the cutting tool fixing plate 31 can rotate at a preset angle.

[0033] Obviously, by setting up the support assembly 2 and the adjusting assembly 3, and allowing the blade fixing plate 31 to rotate at a preset angle under the action of the adjuster 32, this utility model improves the flexibility of angle adjustment when grinding blades and enhances the equipment's ability to adapt to different grinding needs.

[0034] As an embodiment of this application, a magnetic chuck 11 is provided on the surface grinder body 1, and a base 21 is connected to the magnetic chuck 11. The base 21 and the magnetic chuck 11 are connected and released by magnetic force. The use of magnetic force to achieve rapid connection and release between the base 21 and the surface grinder body 1 simplifies the clamping process, improves work efficiency, and also ensures the stability and reliability of the connection.

[0035] Furthermore, the base 21 is generally rectangular, and the end of the base 21 connected to the fixed base 22 has an opening, and a mounting groove 211 is formed by extending a preset height along the opening end.

[0036] For example, the mounting groove 211 is rectangular, and the four corners of the mounting groove 211 are rounded to improve the safety of the mounting groove 211.

[0037] As an embodiment of this application, the fixed base 22 is disposed within the mounting groove 211. One end of the fixed base 22 is connected to the bottom plate of the mounting groove 211, and the other end is connected to the adjusting and fixing component 3. The fixed base 22 includes a first fixed base 221 and a second fixed base 222, with a blade fixing plate 31 disposed between the first fixed base 221 and the second fixed base 222. The arrangement of the double fixed bases 22 not only increases the stability of the structure but also allows the blade fixing plate 31 to be precisely adjusted at the angle between the two, thereby improving the grinding accuracy.

[0038] Optionally, the fixed base 22 can be a plate-shaped body with a certain cross-sectional shape. The cross-sectional shape of the fixed base 22 can be any one or two of the following: rectangle, square, and trapezoid. For example, the first fixed base 221 has a trapezoidal cross-sectional shape, and the second fixed base 222 has a rectangular cross-sectional shape.

[0039] Furthermore, each fixed base 22 is provided with mounting holes, and an adjuster 32 is installed at each mounting hole.

[0040] Furthermore, the blade fixing plate 31 is rotatably connected to the first fixing base 221 at one end via a plate end shaft, and rotatably connected to the second fixing base 222 at the other end. The fixing method of the plate end shaft of the blade fixing plate 31 ensures that the blade fixing plate 31 can be smoothly adjusted in angle, reducing errors caused by friction or instability.

[0041] As an embodiment of this application, the adjuster 32 includes a cover plate, a gear set, a compression spring, and a rotating handle 321. The gear set is arranged between the cover plates, with one end of the gear set connected to the rotating handle 321 and the other end connected to the compression spring. External driving force drives the rotating handle 321 to achieve linkage between the gear set and the compression spring, thereby realizing the angle adjustment of the blade fixing plate 31. The adjuster 32 has a simple and effective structure, allowing users to accurately control the grinding angle according to actual needs.

[0042] Furthermore, the cover plate includes a first cover plate and a second cover plate located on both sides of the gear set. The first cover plate has a rotating handle 321 at the end of the blade fixing plate 31, and a gear set is connected to the end of the first cover plate near the blade fixing plate 31. The second cover plate has a compression spring connected to the end of the blade fixing plate 31, and a plate end shaft for mounting the blade fixing plate 31 is connected to the end of the second cover plate near the blade fixing plate 31.

[0043] It should be noted that the cover plate can protect the internal structural components from external influences and adjust the compactness and efficiency of the entire system structure. The rotating handle 321 is rotatably connected to the gear assembly through the mounting holes on the cover plate.

[0044] Furthermore, the rotating handle 321 includes a base plate 322 and a hand handle 323. The hand handle 323 is provided on the side wall of the base plate 322. The base plate 322 and the hand handle 323 are detachably connected or integrally formed. An angle indicator line 325 is provided on the base plate 322. The angle indicator line 325 can indicate the reading on the base plate 322 when the rotating handle 321 stops rotating, so that the user can obtain the rotation angle in time.

[0045] Furthermore, the cover plate is provided with an angle scale line 324. By reading the difference between the readings of the angle scale line 324 on the cover plate before and after the rotation displacement of the rotating handle 321, the rotation angle can be obtained.

[0046] As an embodiment of this application, the gear set includes a first gear and a second gear. The first gear is mounted on a first cover plate, and the second gear is connected to a rotating handle 321 via a drive shaft. The first gear and the second gear control the rotation and stopping of the gear set by whether they are engaged or not.

[0047] Furthermore, the blade fixing plate 31 is provided with a blade 4 to be ground, and the blade fixing plate 31 is connected to the blade 4 to be ground by fasteners.

[0048] Furthermore, the fastener is a wing nut.

[0049] The blade fixing plate 31 is rectangular in shape. When installing the blade 4 to be ground, the mounting holes on the blade fixing plate 31 and the blade 4 to be ground are aligned, and the blade is connected by bolts. Then, the blade 4 to be ground is fixed in place by using a wing nut.

[0050] The working principle of the clamping fixture for grinding blades in this utility model is as follows:

[0051] Before rotation, read the position of the rotating handle 321 (the initial angle reading is usually 0), drive the rotating handle 321, apply external force, and under the action of compression, the compression spring pulls the second gear, the teeth of the first gear and the second gear separate, the second gear drives the blade fixing plate 31 and the blade 4 to be ground installed on it to rotate until it rotates to the required angle, remove the external force, the compression spring returns to its original state, the teeth of the first gear and the second gear mesh, stop rotating, the blade 4 to be ground reaches the preset position, and the grinding wheel 5 starts to grind the blade 4 to be ground.

[0052] Compared with the prior art, the above-described embodiments in this application have the following beneficial technical effects:

[0053] By setting the bracket assembly 2 and the adjusting assembly 3, the blade fixing plate 31 is allowed to rotate at a preset angle under the action of the adjuster 32, which improves the flexibility of the angle adjustment of the blade 4 to be ground and enhances the equipment's ability to adapt to different grinding needs.

[0054] The adjuster 32 includes components such as a cover plate, a gear set, a compression spring, and a rotating handle 321. The angle of the blade fixing plate 31 is adjusted by driving the rotating handle 321. When an external force is applied to the rotating handle 321, the gear set teeth separate and begin to rotate. When the external force is removed, the teeth mesh and the rotation stops, which allows the user to precisely control the grinding angle according to actual needs.

[0055] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A clamping fixture for grinding cutting blades, characterized in that, The device includes a support assembly and a mounting assembly. The support assembly includes a base for connecting the surface grinder body and a fixed base for supporting and fixing the mounting assembly. The fixed base is located on the upper part of the base. The mounting assembly includes a blade fixing plate and an adjuster. The blade fixing plate is mounted on the fixed base through the adjuster. Under the action of the adjuster, the blade fixing plate can rotate at a preset angle.

2. The clamping fixture for grinding blades according to claim 1, characterized in that, The surface grinder body is equipped with a magnetic chuck, and a base is connected to the magnetic chuck. The base and the magnetic chuck are connected and released by magnetic force.

3. The clamping fixture for grinding blades according to claim 1, characterized in that, The base is generally rectangular in shape. The end of the base connected to the fixed base has an opening, and a mounting groove is formed by extending a preset height along the opening.

4. The clamping fixture for grinding blades according to claim 3, characterized in that, The fixed base is disposed in the mounting slot. One end of the fixed base is connected to the bottom plate of the mounting slot, and the other end is connected to the adjustment and fixing component. The fixed base includes a first fixed base and a second fixed base, and a blade fixing plate is disposed between the first fixed base and the second fixed base.

5. A clamping fixture for grinding blades according to claim 4, characterized in that, The blade fixing plate is rotatably connected to the first fixing base at one end via a plate end shaft, and rotatably connected to the second fixing base at the other end.

6. A clamping fixture for grinding blades according to any one of claims 1-5, characterized in that, The adjuster includes a cover plate, a gear set, a compression spring, and a rotating handle. The gear set is arranged between the cover plates. One end of the gear set is connected to the rotating handle, and the other end is connected to the compression spring. External driving force drives the rotating handle to realize the linkage between the gear set and the compression spring, thereby realizing the angle adjustment of the blade fixing plate.

7. A clamping fixture for grinding blades according to claim 6, characterized in that, The cover plate includes a first cover plate and a second cover plate located on both sides of the gear set. A rotating handle is provided on the side of the first cover plate away from the blade fixing plate. The gear set is connected to the side of the first cover plate near the blade fixing plate. The compression spring is connected to the side of the second cover plate away from the blade fixing plate. The plate end shaft on which the blade fixing plate is mounted is connected to the side of the second cover plate near the blade fixing plate.

8. A clamping fixture for grinding blades according to claim 7, characterized in that, The gear set includes a first gear and a second gear. The first gear is mounted on the first cover plate, and the second gear is connected to the rotating handle via a drive shaft. The first gear and the second gear control the rotation and stopping of the gear set by whether they are engaged or not.

9. A clamping fixture for grinding blades according to claim 1, characterized in that, The blade fixing plate is provided with a blade to be ground, and the blade fixing plate is connected to the blade to be ground by fasteners.

10. A clamping fixture for grinding blades according to claim 9, characterized in that, The fastener is a wing nut.