Edge grinding device capable of conveniently replacing edge grinding whetstone

Abstract

The utility model discloses an edging device capable of conveniently replacing edging whetstone, which comprises a base, a driving device arranged on the base, a driving shaft arranged on the driving device, a limiting disc arranged on the driving shaft, whetstone sleeved on the driving shaft, a hydraulic cavity arranged in the driving shaft, and a limiting rod arranged on the side wall of the driving shaft along the radial direction in a sealing and sliding manner, a sliding cavity of the limiting rod communicates with the hydraulic cavity, a limiting groove is correspondingly formed in the inner wall of the whetstone, and an oil pressure adjusting mechanism is further arranged on the driving shaft. When the whetstone is installed, the pressure in the hydraulic cavity is increased through the oil pressure adjusting mechanism, and then the limiting rod can be pushed into the limiting groove of the whetstone under the action of hydraulic pressure to achieve installation of the whetstone. And when the whetstone is disassembled, the pressure in the hydraulic cavity is reduced again through the oil pressure adjusting mechanism, and then the limiting rod can be separated from the limiting groove to realize the disassembly of the whetstone. The whetstone is conveniently disassembled and assembled by arranging the disassembling and assembling mechanism on the driving shaft, and the whetstone grinding machine has the advantages of being convenient to use and small in size.

Description

Technical Field

[0001] The utility model relates to the technical field of edge grinding devices, and in particular to an edge grinding device capable of conveniently replacing an edge grinding stone. Background Art

[0002] Whetstone, as a grinding tool with a long history, is widely used in metal processing, lens processing and other fields. Whetstone is famous for its unique physical properties. Its surface is fine and hard, which can effectively remove impurities and uneven parts on the surface of the workpiece, making the surface of the processed material smooth as a mirror. At the same time, whetstone also has a certain toughness and durability. Even in the long-term grinding process, it can maintain stable grinding performance and is not easy to wear or break.

[0003] At present, a Chinese patent with the announcement number CN217255553U discloses an edge grinding device that can conveniently replace an edge grinding stone, including a base, a motor is arranged on the base, a grindstone is detachably arranged on the output shaft of the motor, and a clamping mechanism is also arranged on the base to achieve clamping and installation of the grindstone. However, the structure of the clamping mechanism is too complicated, and since an additional vertical plate is required for installation, the edge grinding device is not easy to be miniaturized. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an edge grinding device capable of conveniently replacing an edge grinding stone.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A grinding device with a conveniently replaceable grinding stone comprises a base, a driving device is arranged on the base, the driving device has a driving shaft, a limiting disk is arranged on the driving shaft, a grinding stone is also sleeved on the driving shaft, a hydraulic cavity is opened in the driving shaft, a limiting rod is arranged on the side wall of the driving shaft along a radial sealing sliding, the sliding cavity of the limiting rod is connected to the hydraulic cavity, a limiting groove is correspondingly arranged on the inner wall of the grinding stone, and an oil pressure regulating mechanism is also arranged on the driving shaft, the oil pressure regulating mechanism is used to increase the pressure of the hydraulic cavity so that the limiting rod is pushed into the limiting groove.

[0007] The hydraulic chamber is communicated with the end surface of the driving shaft, and the oil pressure regulating mechanism comprises an adjusting rod threadedly and sealedly connected in the hydraulic chamber.

[0008] An installation groove is axially opened on the side wall of the driving shaft, a hydraulic push rod is arranged in the installation groove, the sliding cavity of the hydraulic push rod is connected to the hydraulic cavity, and a limit plate is arranged on the ejection end of the hydraulic push rod. When the pressure in the hydraulic cavity increases, the ejection end ejects and drives the limit plate to press the grindstone against the limit plate.

[0009] The limiting rod is connected with an elastic reset piece.

[0010] The grindstone and the driving shaft are connected via a key sleeve.

[0011] A connection port connected to the hydraulic chamber is provided on the end surface of the mounting groove, and the hydraulic push rod is connected to the connection port through a connecting piece, thereby achieving communication with the hydraulic chamber.

[0012] The limiting plate includes a main body and a limiting portion elastically arranged on the main body. A guide plate is also arranged in the mounting groove. A first guiding slope is constructed on the limiting portion, and a second guiding slope matched with the first guiding slope is constructed on the guide plate.

[0013] The beneficial effects of the utility model are as follows: when installing the grindstone, the pressure in the hydraulic cavity is increased by the oil pressure regulating mechanism, and then the limit rod can be pushed into the limit groove of the grindstone under the action of the hydraulic pressure to realize the installation of the grindstone; when removing the grindstone, the pressure in the hydraulic cavity is reduced again by the oil pressure regulating mechanism, and then the limit rod can be removed from the limit groove to realize the removal of the grindstone. Compared with the prior art, the edge grinding device of the utility model realizes the convenient disassembly and assembly of the grindstone by arranging the disassembly and assembly mechanism on the driving shaft, and has the advantages of convenient use and miniaturization. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment;

[0015] Figure 2 It is a schematic cross-sectional view of the structure of an embodiment;

[0016] Figure 3 for Figure 2 Enlarged view of part A.

[0017] Figure numerals: 1. base; 2. driving device; 3. driving shaft; 4. limit plate; 5. grindstone; 6. hydraulic chamber; 7. limit rod; 8. limit groove; 9. oil pressure regulating mechanism; 10. adjusting rod; 11. mounting groove; 12. hydraulic push rod; 13. limit plate; 14. connecting port; 15. connecting seat; 16. main body; 17. limit part; 18. guide plate; 19. first guide slope; 20. second guide slope. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, a grinding device for conveniently replacing grinding stones comprises a base 1, on which a driving device 2 is arranged, for example, the driving device 2 may be a motor or other rotating driving source, so the driving device 2 at least comprises a driving shaft 3 for driving a grinding stone 5 to rotate to grind a workpiece. A limiting plate 4 is arranged on the driving shaft 3, and the grinding stone 5 is sleeved to the driving shaft 3 and abuts against the limiting plate 4 to realize positioning and installation.

[0020] In order to realize the convenient disassembly and assembly of the grindstone 5, in the present disclosure, a hydraulic chamber 6 is provided in the drive shaft 3, and a limit rod 7 is provided on the side wall of the drive shaft 3 in a radially sealed sliding manner. For example, a mounting hole connected to the hydraulic chamber 6 is provided through the side wall of the drive shaft 3, and a connecting seat 15 is provided in the mounting hole. The connecting seat 15 has a sliding chamber connected to the hydraulic chamber 6, and the limit rod 7 is adapted to slide in the sliding chamber, thereby realizing ejection and collection relative to the side wall of the drive shaft 3. In addition, a limit groove 8 is correspondingly provided on the inner wall of the grindstone 5, and an oil pressure regulating mechanism 9 for regulating the pressure in the hydraulic chamber 6 is also provided on the drive shaft 3.

[0021] When installing the grindstone 5, the circumferential position of the limit groove 8 and the limit rod 7 can be aligned and the grindstone 5 can be sleeved onto the drive shaft 3. Then, the pressure in the hydraulic chamber 6 can be increased by the oil pressure regulating mechanism 9, and the limit rod 7 can be ejected and inserted into the limit groove 8 under the action of the hydraulic pressure to achieve the installation of the grindstone 5. Similarly, when removing the grindstone 5, the pressure in the hydraulic chamber 6 can be reduced again by the oil pressure regulating mechanism 9, and then the limit rod 7 can be removed from the limit groove 8 to achieve the removal of the grindstone 5.

[0022] In a preferred example, the limiting grooves 8 and the limiting rods 7 may be provided in multiple groups in the circumferential direction, so as to improve the installation reliability of the grindstone 5 and the drive shaft 3. In addition, the grindstone 5 and the drive shaft 3 may be connected by a key sleeve. For example, a flat key is provided on the drive shaft 3, and a positioning groove is correspondingly configured on the inner wall of the grindstone 5. The precision of the limiting rod 7 ejecting and inserting into the limiting groove 8 is improved by the circumferential positioning of the flat key and the positioning groove.

[0023] Among them, an elastic reset member may be connected between the limit rod 7 and the connecting seat 15. When the grindstone 5 needs to be disassembled, as the pressure in the hydraulic chamber 6 decreases, the hydraulic oil will gradually flow out of the sliding chamber of the connecting seat 15, and then the elastic reset member will return to its natural state, so that the limit rod 7 can be actively disengaged from the limit groove 8, thereby making the grindstone 5 easier to disassemble.

[0024] In some embodiments, the hydraulic chamber 6 is configured to be connected to the end surface of the drive shaft 3, and the oil pressure regulating mechanism 9 may preferably include an adjusting rod 10 threadedly sealed and connected to the opening of the hydraulic chamber 6. It can be understood that by screwing the adjusting rod 10 in or out of the hydraulic chamber 6, the size of the hydraulic chamber 6 is correspondingly reduced or increased, thereby increasing or decreasing the pressure in the hydraulic chamber 6.

[0025] For example, a mounting groove 11 is also provided in the axial direction on the side wall of the driving shaft 3, a connection port 14 connected to the hydraulic chamber 6 is provided on the end surface of the mounting groove 11, and a hydraulic push rod 12 is also provided in the mounting groove 11. The hydraulic push rod 12 is connected to the connection port 14 through a connecting piece, so that the sliding chamber inside the hydraulic push rod 12 is connected to the oil circuit of the hydraulic chamber 6. Preferably, the connecting piece can be a pipe, and the two ends of the pipe are respectively plugged into the hydraulic push rod 12 and the connection port 14 to realize the oil circuit connection.

[0026] In more detail, a limit plate 13 is provided on the ejection end of the hydraulic push rod 12. During the installation process of the above-mentioned grindstone 5, as the pressure in the hydraulic chamber 6 increases, the hydraulic oil will be filled into the sliding chamber of the hydraulic push rod 12, and thereby push the limit plate 13 to eject to one side of the grindstone 5, until the limit plate 13 presses the grindstone 5 against the limit plate 4. It can be understood that by clamping and positioning the grindstone 5 by the limit plate 4 and the limit plate 13, the installation state of the grindstone 5 is more stable and reliable.

[0027] In a preferred example, the above-mentioned limiting plate 13 is configured to include a main body 16 and a limiting portion 17 elastically arranged on the main body 16, and a guide plate 18 is also arranged in the mounting groove 11. In addition, a first guiding inclined surface 19 is configured on the limiting portion 17, and a second guiding inclined surface 20 adapted to the first guiding inclined surface 19 is configured on the guide plate 18. Among them, the automatic ejection and retraction of the ejection mechanism through the guidance of the two inclined surfaces is a prior art and will not be described in detail in this disclosure.

[0028] When the ejection end of the hydraulic push rod 12 is not ejected, the limit plate 13 is opposite to the guide plate 18, and the limit portion 17 will be elastically retracted into the main body 16 under the interference of the guide plate 18. At this time, the limit portion 17 is not easy to protrude from the mounting groove 11 and interfere with the sleeve connection of the grindstone 5; when the ejection end of the hydraulic push rod 12 is ejected, the limit portion 17 will gradually pop out from the main body 16 under the cooperation of the first guide slope 19 and the second guide slope 20 until it protrudes from the mounting groove 11, and then the limit portion 17 can push the grindstone 5 to press against the limit plate 4 under the action of the ejection force.

[0029] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An edge grinding device capable of conveniently replacing an edge grinding stone, comprising a base (1), a driving device (2) being arranged on the base (1), a driving shaft (3) being arranged on the driving shaft (3), a limiting plate (4) being arranged on the driving shaft (3), and a grinding stone (5) being sleeved on the driving shaft (3), wherein: A hydraulic chamber (6) is provided in the drive shaft (3), a limit rod (7) is provided on the side wall of the drive shaft (3) in a radially sealed sliding manner, the sliding chamber of the limit rod (7) is connected to the hydraulic chamber (6), a limit groove (8) is correspondingly provided on the inner wall of the grindstone (5), and an oil pressure regulating mechanism (9) is also provided on the drive shaft (3), and the oil pressure regulating mechanism (9) is used to increase the pressure of the hydraulic chamber (6) so that the limit rod (7) is pushed into the limit groove (8).

2. The edge grinding device with conveniently replaceable edge grinding stones according to claim 1 is characterized in that: The hydraulic chamber (6) is connected to the end surface of the drive shaft (3), and the oil pressure regulating mechanism (9) comprises an regulating rod (10) threadedly sealed and connected to the hydraulic chamber (6).

3. The edge grinding device with conveniently replaceable edge grinding stones according to claim 1, characterized in that: A mounting groove (11) is axially provided on the side wall of the driving shaft (3), a hydraulic push rod (12) is arranged in the mounting groove (11), a sliding cavity of the hydraulic push rod (12) is connected to the hydraulic cavity (6), and a limiting plate (13) is arranged on the ejection end of the hydraulic push rod (12), when the pressure in the hydraulic cavity (6) increases, the ejection end ejects and drives the limiting plate (13) to press the grindstone (5) against the limiting plate (4).

4. The edge grinding device with conveniently replaceable edge grinding stones according to claim 1, characterized in that: The limiting rod (7) is connected with an elastic reset member.

5. The edge grinding device with conveniently replaceable edge grinding stones according to any one of claims 1 to 4, characterized in that: The grindstone (5) and the drive shaft (3) are connected via a key sleeve.

6. The edge grinding device with conveniently replaceable edge grinding stones according to claim 3, characterized in that: A connection port (14) connected to the hydraulic chamber (6) is provided on the end surface of the installation groove (11), and the hydraulic push rod (12) is connected to the connection port (14) via a connecting piece, thereby achieving communication with the hydraulic chamber (6).

7. The edge grinding device with conveniently replaceable edge grinding stones according to claim 3 or 6, characterized in that: The limiting plate (13) comprises a main body (16) and a limiting portion (17) elastically arranged on the main body (16); a guide plate (18) is also arranged in the mounting groove (11); a first guiding inclined surface (19) is constructed on the limiting portion (17); and a second guiding inclined surface (20) adapted to the first guiding inclined surface (19) is constructed on the guide plate (18).

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