Locking mechanism for grinding wheel exchange

Abstract

The utility model discloses a kind of locking mechanisms of grinding machine grinding wheel exchange, it is related to machine tool processing field, including shell and main shaft, the rotating center is equipped in shell middle position, the rotating center is used to connect driving source, shell both sides are respectively movably installed fixture, the fixture is composed of claw cutter, pivot and buffer component The inside processing of main shaft has internal thread, the outer side detachably installed grinding wheel of main shaft, the movable mounting stop pin in the shell, the stop pin is connected with claw cutter, the utility model is more simple and convenient to operate, clamping is more stable, avoid the damage of claw cutter caused by fast reset, buffer to claw cutter, to improve the service life of claw cutter.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool processing, and specifically relates to a locking mechanism for grinding wheel exchange on a grinding machine. Background Technology

[0002] Grinding machines are machine tools that use abrasive wheels to grind the surface of workpieces. Most grinding machines use high-speed rotating grinding wheels for grinding, while a few use other abrasive wheels and free abrasives such as honing machines, ultra-precision machining tools, belt grinders, lapping machines, and polishing machines.

[0003] When using a grinding machine, the grinding wheels need to be changed periodically. During the changing process, slippage can easily occur between the grinding wheel spindle and the rotating shaft, leading to inconvenience in changing the wheels and a reduction in work efficiency.

[0004] Therefore, we propose a locking mechanism for grinding wheel exchange in grinding machines. Utility Model Content

[0005] This invention provides a locking mechanism for changing grinding wheels on a grinding machine, in order to solve the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a locking mechanism for grinding wheel exchange in a grinding machine, including a housing and a spindle. A rotation center is provided in the middle of the housing, which is used to connect to a drive source. Clamps are movably installed on both sides of the housing. Each clamp consists of a claw cutter, a rotating shaft, and a buffer assembly. The spindle has internal threads machined on its inner side, and a grinding wheel is detachably installed on the outer side of the spindle. A backstop pin is movably installed inside the housing, and the backstop pin engages with the claw cutter.

[0007] Preferably, there are two claw blades, the tops of the two claw blades are hook-shaped, and the two claw blades are arranged symmetrically. A rotating shaft is fixedly installed inside the housing, the claw blades are rotatably connected to the rotating shaft, and a buffer assembly is fixedly installed between the tail ends of the two claw blades.

[0008] Preferably, the buffer assembly includes a sleeve, which is hollow, and a piston is slidably installed inside the sleeve. There are two pistons, which are symmetrically arranged. A connecting block is fixedly installed at the other end of the piston, and a buffer spring is fixedly installed on the outside of the connecting block. A claw blade is fixedly connected to the other end of the buffer spring.

[0009] Preferably, the sleeve has an air hole at its center, and the piston is disposed on both sides of the air hole.

[0010] Preferably, the outer side of the housing is provided with a mounting groove, and a positioning block is provided in the mounting groove, which is engaged with the grinding wheel.

[0011] Preferably, a return spring is provided on the outside of the anti-reverse pin, and the return spring is sleeved on the outside of the anti-reverse pin.

[0012] This invention has the following advantages over the prior art:

[0013] 1. This utility model discloses a locking mechanism for exchanging grinding wheels on a grinding machine. The grinding wheel rod is inserted along the spindle. When the tool arm is close to the end face of the spindle, it drives the anti-reverse pin to move backward and push out, thereby causing the anti-reverse pin to move away from between the two claw cutters. The two claw cutters open under the action of the buffer assembly, which facilitates the exchange of grinding wheels. When the grinding wheel shaft moves away from the end face of the spindle, the anti-reverse pin is reset under the action of the return spring, thereby causing the two claw cutters to close, thus achieving the purpose of gripping. The operation is simple and convenient.

[0014] 2. The present invention relates to a locking mechanism for grinding wheel exchange on a grinding machine. When the claw cutter is closed, the piston slides inside the sleeve and stretches the buffer spring. When the anti-reverse pin leaves the space between the claw cutters, the buffer spring resets. At this time, the piston compresses the gas inside the sleeve, thereby driving the buffer spring to reset slowly and uniformly, avoiding damage to the claw cutter caused by rapid reset, thus buffering the claw cutter and improving its service life. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a locking mechanism for exchanging grinding wheels in a grinding machine according to the present invention;

[0016] Figure 2 This is a schematic diagram of the unfolded structure of a locking mechanism for exchanging grinding wheels in a grinding machine according to the present invention.

[0017] Figure 3 This is a structural diagram of the clamp in the locking mechanism for changing grinding wheels in a grinding machine according to this utility model;

[0018] Figure 4 This is a structural diagram of the buffer assembly in the locking mechanism for grinding wheel exchange of this utility model;

[0019] The following are the labels in the diagram: 1. Machine housing; 2. Rotation center; 3. Grinding wheel; 4. Anti-reverse pin; 5. Spindle; 6. Clamp; 7. Claw cutter; 8. Positioning block; 9. Rotating shaft; 10. Buffer assembly; 11. Return spring; 12. Sleeve; 13. Air hole; 14. Piston; 15. Connecting block; 16. Buffer spring. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0021] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a locking mechanism for exchanging grinding wheels 3 on a grinding machine, including a housing 1 and a spindle 5. A rotation center 2 is provided in the middle of the housing 1, which is used to connect to a drive source. Clamps 6 are movably installed on both sides of the housing 1. The clamps 6 are composed of claw cutters 7, a rotating shaft 9 and a buffer assembly 10. The inner side of the spindle 5 is machined with internal threads, and the grinding wheel 3 is detachably installed on the outer side of the spindle 5. A backstop pin 4 is movably installed inside the housing 1, and the backstop pin 4 is engaged with the claw cutter 7.

[0023] Furthermore, there are two claw blades 7, the tops of the two claw blades 7 are hook-shaped, and the two claw blades 7 are arranged symmetrically. A rotating shaft 9 is fixedly installed inside the housing 1. The claw blades 7 are rotatably connected to the rotating shaft 9. A buffer assembly 10 is fixedly installed between the tail ends of the two claw blades 7.

[0024] Furthermore, the buffer assembly 10 includes a sleeve 12, which is hollow. A piston 14 is slidably installed inside the sleeve 12. There are two pistons 14, which are symmetrically arranged. A connecting block 15 is fixedly installed at the other end of the piston 14. A buffer spring 16 is fixedly installed on the outside of the connecting block 15. A claw blade 7 is fixedly connected to the other end of the buffer spring 16.

[0025] Furthermore, an air hole 13 is provided at the center of the sleeve 12, and the piston 14 is located on both sides of the air hole 13.

[0026] Furthermore, an installation groove is provided on the outer side of the housing 1, and a positioning block 8 is provided in the installation groove, which is engaged with the grinding wheel 3.

[0027] Furthermore, a return spring 11 is provided on the outside of the anti-reverse pin 4, and the return spring 11 is sleeved on the outside of the anti-reverse pin 4.

[0028] Working principle:

[0029] The grinding wheel 3 is inserted along the spindle 5. When the cutter arm is close to the end face of the spindle 5, it drives the anti-reverse pin 4 to move backward and push out, thereby causing the anti-reverse pin 4 to leave the space between the two claw cutters 7. The two claw cutters 7 open under the action of the buffer assembly 10, which facilitates the exchange of the grinding wheel 3. When the grinding wheel 3 shaft leaves the end face of the spindle 5, the anti-reverse pin 4 returns to its original position under the action of the return spring 11, thereby causing the two claw cutters 7 to close, thus achieving the purpose of gripping. The operation is simple and convenient. When the claw cutters 7 are closed, the piston 14 slides in the sleeve 12 and stretches the buffer spring 16. When the anti-reverse pin 4 leaves the space between the claw cutters 7, the buffer spring 16 returns to its original position. At this time, the piston 14 compresses the gas in the sleeve 12, thereby causing the buffer spring 16 to slowly and uniformly return to its original position, avoiding damage to the claw cutters 7 caused by rapid return, and buffering the claw cutters 7 to improve their service life.

[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A locking mechanism for exchanging grinding wheels (3) on a grinding machine, comprising a housing (1) and a spindle (5), characterized in that: The housing (1) is provided with a rotation center (2) in the middle, which is used to connect the drive source. The housing (1) is equipped with movably mounted clamps (6) on both sides. The clamps (6) are composed of a claw cutter (7), a rotating shaft (9) and a buffer assembly (10). The spindle (5) has an internal thread on its inner side. The grinding wheel (3) is detachably mounted on the outer side of the spindle (5). The anti-reverse pin (4) is movably mounted inside the housing (1) and is engaged with the claw cutter (7).

2. The locking mechanism for exchanging grinding wheels (3) of a grinding machine according to claim 1, characterized in that, Two claw blades (7) are provided. The top of the two claw blades (7) is hook-shaped and the two claw blades (7) are arranged symmetrically. A rotating shaft (9) is fixedly installed inside the housing (1). The claw blades (7) are rotatably connected to the rotating shaft (9). A buffer assembly (10) is fixedly installed between the tail ends of the two claw blades (7).

3. The locking mechanism for exchanging grinding wheels (3) of a grinding machine according to claim 1, characterized in that, The buffer assembly (10) includes a sleeve (12), which is hollow. A piston (14) is slidably installed inside the sleeve (12). There are two pistons (14), which are symmetrically arranged. A connecting block (15) is fixedly installed at the other end of the piston (14). A buffer spring (16) is fixedly installed on the outside of the connecting block (15). A claw knife (7) is fixedly connected to the other end of the buffer spring (16).

4. The locking mechanism for exchanging grinding wheels (3) of a grinding machine according to claim 3, characterized in that, The sleeve (12) has an air hole (13) at its center, and the piston (14) is located on both sides of the air hole (13).

5. The locking mechanism for exchanging grinding wheels (3) of a grinding machine according to claim 1, characterized in that, The outer side of the housing (1) is provided with an installation groove, and a positioning block (8) is provided in the installation groove. The positioning block (8) is engaged with the grinding wheel (3).

6. The locking mechanism for exchanging grinding wheels (3) of a grinding machine according to claim 1, characterized in that, A return spring (11) is provided on the outside of the anti-reverse pin (4), and the return spring (11) is sleeved on the outside of the anti-reverse pin (4).

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