CN213470812U - Automatic grinding wheel dresser - Google Patents

Abstract

The utility model provides an automatic grinding wheel dresser, includes a unable adjustment base, two sets of trimming devices, and trimming device includes support, motor, top cap, emery wheel tray and repaiies the emery wheel, and the motor is installed in the installation space of support, and the top cap is fixed at the support upper surface and with support sealing connection, and the transmission shaft of motor is vertical upwards to pass behind the top cap fixed with the emery wheel tray, and the emery wheel is maintained at the top fixed connection of emery wheel tray along downwardly extending outward of emery wheel tray lower surface. According to the scheme, the trimming device is arranged on the upper surface of the fixed base, and the motor transmission shaft in the trimming device is vertically and upwards arranged to drive the grinding wheel tray and the trimming grinding wheel to rotate, so that the structure is compact, the universality is strong, and the device can be applied to multiple occasions; the sealing performance of the trimming device is further improved by the aid of the overall sealing structure, the consistency of the double-station automatic grinding wheel trimmer is good during trimming, trimming efficiency is greatly improved, a good trimming effect is achieved, and trimming precision and the flatness of a sand bottom are guaranteed.

Description

Automatic grinding wheel dresser

Technical Field

The utility model relates to a numerically control grinder corollary equipment technical field, in particular to an automatic wheel dresser that is used for diamond grinding wheel, CBN emery wheel on the numerically control grinder to carry out quick repairment.

Background

Grinding is a cutting method for machining the surface of a workpiece using a grinding tool such as a grinding wheel rotating at a high speed, and in grinding in modern industry, grinding is usually performed using a grinding wheel rotating at a high speed in combination with the numerical control technology of a numerically controlled grinding machine.

The grinding wheel is used for processing various materials by utilizing the hardness and the grinding performance of the grinding wheel, but the grinding wheel is difficult to avoid abrasion when grinding a workpiece. In the grinding process, the state of the working surface of the grinding wheel is continuously changed due to the abrasion of the grinding wheel, the cutting capacity of the grinding wheel is reduced along with the prolonging of the grinding time, various grinding defects continuously occur, and the grinding processing can not be continuously carried out. At this time, the grinding wheel must be dressed to restore a normal grinding state. When the diamond grinding wheel and the CBN grinding wheel are dressed, the diamond grinding wheel belongs to the superhard abrasive grain grinding wheel, the CBN grinding wheel belongs to the high-hardness abrasive grain grinding wheel, and the diamond grinding wheel and the CBN grinding wheel have better wear resistance and bring inconvenience to dressing work, so that dressing time is prolonged and dressing effect is poor.

In the prior art, a diamond grinding wheel and a CBN grinding wheel are usually dressed by a diamond pen; or a copper plate or a sand surface is arranged on the workbench, and the grinding wheel reciprocates left and right for self-repairing; and the other grinding wheel adopts a low-speed revolving grinding wheel and a high-speed rotating grinding wheel for opposite grinding. In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art:

1. the mode of diamond pen trimming has low efficiency, and the pen point of the diamond pen becomes blunt in the trimming process, so that the trimming precision is reduced;

2. the efficiency is very low by adopting a grinding wheel self-dressing mode, the self-walking speed of the grinding wheel on a grinding machine is 40 meters per minute, two to three hours are needed for finishing once, and the sharpness and the flatness after finishing are low, so the finishing effect on the diamond grinding wheel and the CBN grinding wheel does not reach the standard;

3. the grinding wheel grinding and dressing mode is adopted, a dresser is generally arranged on one grinding machine, and for diamond grinding wheels and CBN grinding wheels, the diamond grinding wheels and the CBN grinding wheels have long dressing periods due to good wear resistance, namely the dresser on the grinding machine is in an idle state for a long time; the conventional grinding wheel grinding and finishing equipment is relatively large in size, large in occupied space, relatively labor-consuming in carrying and moving, and not suitable for carrying among grinding machines; a large amount of fine abrasive dust is generated during dressing grinding, and if the abrasive dust enters the inside of the dresser, the dresser may be damaged.

In view of this, how to solve the problems of low dressing efficiency, poor dressing effect, insufficient sealing performance, difficult transportation and the like existing in the dressing of diamond grinding wheels and CBN grinding wheels in the prior art, the problem to be solved by the present invention is to be solved.

Disclosure of Invention

The utility model provides an automatic grinding wheel dresser, its purpose be used for solving among the prior art to the diamond grinding wheel, CBN emery wheel maintain the dressing inefficiency that exists, the dressing effect is poor, sealing performance is not enough, difficult transport scheduling problem to make automatic grinding wheel dresser can be maintained diamond grinding wheel or CBN emery wheel fast under the prerequisite of guaranteeing the precision, the structure of dresser itself is accurate ingenious, the leakproofness is good.

In order to achieve the above object, the utility model provides an automatic grinding wheel dresser, this dresser include unable adjustment base, unable adjustment base has an upper surface unable adjustment base's last surface positioning installs trimming means, a serial communication port, trimming means's quantity is two sets of, every group trimming means has:

the support is positioned above the fixed base and is fixedly connected relative to the fixed base; the outer edge of the upper surface of the support is provided with a step-shaped sealing groove, the support is provided with an upward opening, and an installation space is formed inside the support;

the motor is arranged in the mounting space of the support, and a transmission shaft of the motor is vertically arranged upwards;

the top cover is fixedly arranged on the upper surface of the support, a sealing block which is matched with the sealing groove is formed on the lower surface of the top cover in a downward protruding mode, and the top cover is provided with a through hole through which a transmission shaft of the motor can penetrate;

the outer edge of the lower surface of the grinding wheel tray is provided with an extension part extending downwards, and the lower surface of the extension part is lower than the joint of the sealing groove and the sealing block; gaps which can enable the grinding wheel tray to rotate are formed among the grinding wheel tray, the support and the top cover; and

and the trimming grinding wheels are fixedly connected with the grinding wheel tray, the trimming grinding wheels are coaxial with the transmission shaft of the motor, and the rotation directions of the motors in the two groups of trimming devices are consistent.

The related content of the utility model is explained as follows:

1. in order to make the installation of motor more convenient, sound construction, make the maintenance of every trimming means more swift simultaneously, the bottom of support is provided with the bottom, by screw fixed connection between bottom and the support, bottom fixed mounting is on unable adjustment base, as long as the bolt between bottom and the unable adjustment base is dismantled when needing to maintain, can take off whole trimming means.

2. A gasket is arranged below the grinding wheel tray, and a transmission shaft of the motor penetrates through the gasket and is fixedly connected with the grinding wheel tray, so that the transmission shaft of the motor can be fixedly connected with the grinding wheel tray better, and the grinding wheel tray and a finishing grinding wheel on the grinding wheel tray can be driven to rotate stably.

3. In order to ensure that the grinding wheel tray and the dressing grinding wheel are more firmly fixed and avoid the vibration of rotation, the grinding wheel tray and the dressing grinding wheel are fixedly connected by a flange plate; meanwhile, in order to optimize the connection mode between the grinding wheel tray and the grinding wheel tray, a connection part with a hole is arranged at the center of the grinding wheel tray in an upward protruding mode, the transmission shaft penetrates through the connection part, a flange block with a cylindrical structure is arranged at the flange plate in a downward protruding mode, the outer side of the flange block abuts against the finishing grinding wheel, and the inner side of the flange block abuts against the connection part.

4. The handles are arranged on two sides of the fixing base, and when the whole trimmer needs to be carried and moved, the handles are directly lifted.

5. The fixed base is provided with a sand baffle plate for preventing a large amount of grinding scraps from impacting and ejecting to the dressing device, the sand baffle plate is positioned beside the dressing grinding wheel, and the height position of the upper surface of the sand baffle plate is positioned between the upper surface and the lower surface of the dressing grinding wheel and used for indicating whether the dressing grinding wheel reaches the position of a grinding layer.

6. One side of the fixed base is provided with a strip-shaped convex block, so that the trimmer is convenient to position when being carried and installed.

7. In order to facilitate the installation of the sand baffle, the sand baffle comprises a fixing plate and a baffle plate, the fixing plate is fixed with the convex block, the baffle plate is connected with the fixing plate, two sides of the baffle plate are close to the position of the trimming grinding wheel and are provided with curved surfaces, and the sand baffle plate shields the connecting position of the trimming grinding wheel, the grinding wheel tray and the top cover as much as possible.

8. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, coupled between two elements, or coupled in any other manner that does not materially affect the operation of the device, unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

9. In the present invention, the terms "center", "upper", "lower", "axial", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional assembly relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.

Because of the application of above-mentioned scheme, compared with the prior art, the utility model have following advantage and effect:

1. the above technical scheme of the utility model through the last surface mounting trimming device at unable adjustment base, the vertical upwards setting of motor drive shaft in the trimming device is in order to drive the emery wheel tray and maintain the emery wheel and rotate, during the repairment grinding machine drive treat the repairment emery wheel feed from top to bottom can, need not attach other feed structures again, compact structure, the commonality is strong, can carry out whole transport, the removal of trimmer by a user, can be applicable to a plurality of occasions.

2. The utility model discloses an above-mentioned scheme in drive through two sets of syntropy pivoted motors and maintain the emery wheel and treat the diamond grinding wheel of maintaining, gyration is to grinding between the CBN emery wheel, so that the automatic wheel dresser of duplex position its uniformity is good when maintaining, compare in the current mode of maintaining and need two three hours could accomplish the diamond grinding wheel, the maintenance of CBN emery wheel, this scheme of adoption only uses about 12 minutes can accomplish and maintain, the maintenance efficiency obtains improving by a wide margin, good maintenance effect has simultaneously, the roughness of maintaining precision and sand bed has been guaranteed.

3. The above technical scheme of the utility model, the outer edge downwardly extending of emery wheel tray lower surface sets up for partly abrasive dust or working solution are stopped outside the junction of seal groove and sealed piece, have avoided abrasive dust or working solution to enter into the installation space of support internally mounted motor, make whole equipment operation normal, reduce maintenance, maintenance cost.

4. The above technical scheme of the utility model, install the configuration by the seal groove of step form and the cooperation of sealed piece between support and the top cap, the seal groove of step form makes even a small amount of abrasive dust or working solution enter into the junction of seal groove and sealed piece, also can further stop the entering of debris by the seal groove of step form, holistic seal structure design has further improved finishing device's sealing performance.

Drawings

Fig. 1 is a schematic view of an overall structure of a first viewing angle of a dresser according to an embodiment of the present invention;

fig. 2 is a schematic view of an overall structure of a second viewing angle of a trimmer according to an embodiment of the present invention;

fig. 3 is an exploded view of a dresser according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a dressing apparatus in a dresser according to an embodiment of the present invention;

FIG. 5 is a schematic three-dimensional half-section view of a dressing device in a dresser according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of FIG. 5;

FIG. 7 is a schematic view of an assembly of a grinding wheel tray and a dressing grinding wheel in the dresser according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a sand guard in the dresser according to the embodiment of the present invention.

The drawings are shown in the following parts:

1. a fixed base;

2. a dressing device;

21. a bottom cover;

22. a support; 221. a sealing groove; 222. an installation space;

23. a top cover; 231. a sealing block; 232. a through hole;

24. a motor; 241. a drive shaft;

25. a grinding wheel tray; 251. an extension portion; 252. a connecting portion;

26. trimming a grinding wheel;

27. a gasket;

28. a flange plate; 281. a flange block;

3. a handle;

4. a bump;

5. a sand baffle plate; 51. a fixing plate; 52. a shielding plate; 521. a curved surface.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1 to 7, the embodiment of the present invention provides an automatic grinding wheel dresser, which includes a fixing base 1, the fixing base 1 has an upper surface, and the dressing device 2 is installed on the upper surface of the fixing base 1 in a positioning manner, and the dressing device 2 includes a bottom cover 21, a support 22, a top cover 23, a motor 24, a grinding wheel tray 25, a dressing grinding wheel 26 and a flange 28.

As shown in fig. 3, a bottom cover 21 is arranged at the bottom of the support 22, a top cover 23 is arranged on the upper surface of the support 22, the bottom cover 21 and the support 22 are fixedly connected by screws, and the bottom cover 21 is fixedly installed on the fixed base 1; the upper part of the support 22 is opened to form an opening, a mounting space 222 is formed inside the support 22 and is used for assembling the motor 24, and the motor 24 can be directly fixed on the support 22; meanwhile, the outer edge of the upper surface of the support 22 is provided with a step-shaped sealing groove 221 which is tightly matched with a sealing block 231 formed by the downward protrusion of the lower surface of the top cover 23, so that grinding chips and working fluid cannot enter the motor 24.

As shown in fig. 3, 5 and 6, the top cover 23 has a through hole 232 through which a transmission shaft 241 of the motor 24 can pass, the transmission shaft 241 of the motor 24 passes through the through hole 232 of the top cover 23 and then is fixed to the grinding wheel tray 25, the upper side of the grinding wheel tray 25 is fixedly connected to the dressing grinding wheel 26, a gasket 27 is arranged below the grinding wheel tray 25, the transmission shaft 241 of the motor 24 passes through the gasket 27 and then is fixedly connected to the grinding wheel tray 25, the transmission shaft 241 of the motor 24 is better fixedly connected to the grinding wheel tray 25, and the motor 24 drives the grinding wheel tray 25 and the dressing grinding wheel 26 to rotate. Meanwhile, in order to prevent abrasive dust or working fluid from entering the mounting space 222 for mounting the motor 24 inside the support 22, the outer edge of the lower surface of the grinding wheel tray 25 has an extension 251 extending downward, and the bottom of the extension 251 is lower than the joint of the sealing groove 221 and the sealing block 231; in order to make the grinding wheel tray 25 rotate better, a gap which can make the grinding wheel tray 25 rotate is arranged between the grinding wheel tray 25 and the support 22 and the top cover 23.

In the above embodiment, the dressing grinding wheel 26 is coaxial with the transmission shaft 241 of the motor 24, and in the case of two sets of dressing devices 2, the two sets of motors 24 rotate in the same direction to drive the dressing grinding wheel 26 to rotate around the same direction, so that the double-station automatic wheel dresser has good consistency during dressing.

Use the utility model discloses during automatic grinding wheel dresser, can be with dresser monolithic stationary to the machining-position of grinding machine on, motor 24 in the starting dresser makes dressing wheel 26 rotate, let treat diamond grinding wheel or CBN emery wheel rotation back down feed simultaneously, diamond grinding wheel or CBN emery wheel touch pivoted dressing wheel 26 and carry out the emery wheel and maintain promptly, two dressing wheel 26 this moment let the area of contact to the mill bigger, and rotational speed each other is very fast, can make the dressing efficiency improve greatly, and adopt such mode to repair effectual to diamond grinding wheel or CBN emery wheel, the precision is high.

In the embodiment of the utility model, the top of emery wheel tray 25 and dressing emery wheel 26 fixed connection, for let emery wheel tray 25 and dressing emery wheel 26 between fixed more firm, take place the vibration when avoiding rotating, carry out fixed connection by ring flange 28 between emery wheel tray 25 and the dressing emery wheel 26, the center department of emery wheel tray 25 upwards the arch is equipped with foraminiferous connecting portion 252, and transmission shaft 241 wears to connecting portion 252 department, the downward arch of ring flange 28 is equipped with tubular structure's flange piece 281, and the outside of flange piece 281 offsets with dressing emery wheel 26, and the inboard of flange piece 281 offsets with connecting portion 252 to make emery wheel tray 25 and dressing emery wheel 26 better stabilize and get together, can further fasten by the screw on the ring flange 28, and this screw can choose for use countersunk screw simultaneously.

The embodiment of the utility model provides an in, can set up handle 3 in unable adjustment base 1's both sides, make things convenient for the removal of trimmer, lay, when needing to maintain the emery wheel on certain grinding machine, the user grips handle 3 and can get up this trimmer and then remove and lay and go in the grinding machine that needs were maintained, and it is more convenient to use, increases its commonality.

In the embodiment of the utility model, one side of the fixed base 1 is provided with the strip-shaped lug 4, which is convenient for positioning when the dresser is transported and installed; a sand blocking plate 5 for blocking sand and indicating the grinding wheel to be in place is arranged on the bump 4 or directly on the fixed base 1, so that a great amount of fine grinding scraps are generated during grinding, the sand blocking plate 5 is driven by the grinding wheel to be repaired and the dressing grinding wheel 26 which rotate relatively at a high speed to jet and impact the periphery, and a great amount of grinding scraps are prevented from being reflected to the dressing device 2 in an impacting manner; as shown in fig. 8, in order to facilitate installation of the sand baffle 5, the sand baffle 5 includes a fixing plate 51 and a shielding plate 52, the fixing plate 51 is fixed to the protrusion 4, the shielding plate 52 is connected to the fixing plate 51, two sides of the shielding plate 52 are close to the dressing grinding wheel 26 and are formed with a curved surface 521, the center of the curved surface 521 and the dressing grinding wheel 26 are located at the axial extension of the transmission shaft 241, so that the sand baffle 5 shields the connection of the dressing grinding wheel 26, the grinding wheel tray 25 and the top cover 23 as much as possible.

With respect to the above embodiments, the changes that may be made by the present invention are described as follows:

1. in the above embodiment, referring to fig. 8, an integrally formed structure may be formed between the shielding plate 52 and the fixing plate 51 of the sand baffle 5, but the embodiment of the present invention is not limited thereto, and the shielding plate 52 and the fixing plate 51 may also be a split structure.

2. In the above embodiment, referring to fig. 2, the sand-blocking plate 5 may be directly mounted on the fixing base 1, or may be mounted on the strip-shaped bump 4 of the fixing base 1, which is not limited in the embodiment of the present invention, and the whole structure may be more compact by mounting the sand-blocking plate 5 on the bump 4 of the fixing base 1 under the condition of having the strip-shaped bump 4; keep off sand board 5 and lug 4 and lie in same one side, personnel also can be more convenient, more handy when dismouting trimming device 2.

3. In the above embodiment, the material of the handle 3 includes, but is not limited to, plastic, hardware, rubber, wood, and the like.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. An automatic dresser for grinding wheels, comprising a fixed base (1), wherein the fixed base (1) is provided with an upper surface, and dressing devices (2) are positioned and installed on the upper surface of the fixed base (1), the dresser is characterized in that the number of the dressing devices (2) is two, and each group of the dressing devices (2) is provided with:

the support (22) is positioned above the fixed base (1) and is fixedly connected relative to the fixed base (1); the outer edge of the upper surface of the support (22) is provided with a step-shaped sealing groove (221); the support (22) is provided with an upward opening, and a mounting space (222) is formed inside the support (22);

the motor (24), the motor (24) is installed in the installation space (222) of the support (22), and a transmission shaft (241) of the motor (24) is vertically arranged upwards;

the top cover (23), the top cover (23) is fixedly installed on the upper surface of the support (22), a sealing block (231) which is installed in a matched mode with the sealing groove (221) is formed in a downward protruding mode on the lower surface of the top cover (23), and the top cover (23) is provided with a through hole (232) through which a transmission shaft (241) of the motor (24) can penetrate;

the grinding wheel tray (25) is fixed on the transmission shaft (241) and driven by the motor (24) to rotate, the outer edge of the lower surface of the grinding wheel tray (25) is provided with an extension part (251) extending downwards, and the lower surface of the extension part (251) is lower than the joint of the sealing groove (221) and the sealing block (231); gaps which can enable the grinding wheel tray (25) to rotate are formed among the grinding wheel tray (25), the support (22) and the top cover (23); and

the trimming grinding wheels (26), the trimming grinding wheels (26) are fixedly connected with the grinding wheel tray (25), the trimming grinding wheels (26) are coaxial with a transmission shaft (241) of the motor (24), and the rotating directions of the motors (24) in the two groups of trimming devices (2) are consistent.

2. The conditioner of claim 1, wherein: the bottom of the support (22) is provided with a bottom cover (21), the bottom cover (21) is fixedly connected with the support (22) through screws, and the bottom cover (21) is fixedly arranged on the fixed base (1).

3. The conditioner of claim 1, wherein: a gasket (27) is arranged below the grinding wheel tray (25), and a transmission shaft (241) of the motor (24) penetrates through the gasket (27) and then is fixedly connected with the grinding wheel tray (25).

4. The conditioner of claim 1, wherein: the grinding wheel tray (25) and the dressing grinding wheel (26) are fixedly connected through a flange plate (28).

5. The conditioner of claim 4, wherein: the center of the grinding wheel tray (25) is provided with a connecting part (252) with a hole in an upward protruding mode, and the transmission shaft (241) penetrates through the connecting part (252).

6. The conditioner of claim 5, wherein: the flange plate (28) is provided with a flange block (281) with a cylindrical structure in a downward protruding mode, the outer side of the flange block (281) abuts against the dressing grinding wheel (26), and the inner side of the flange block (281) abuts against the connecting portion (252).

7. The conditioner of claim 1, wherein: handles (3) are arranged on two sides of the fixed base (1).

8. A conditioner according to any one of claims 1 to 7, wherein: the sand blocking plate (5) used for blocking sand and indicating the grinding wheel to be in place is arranged on the fixed base (1), the sand blocking plate (5) is located beside the dressing grinding wheel (26), and the height position of the upper surface of the sand blocking plate (5) is located between the upper surface and the lower surface of the dressing grinding wheel (26).

9. The conditioner of claim 8, wherein: one side of the fixed base (1) is provided with a strip-shaped lug (4).

10. A conditioner in accordance with claim 9, wherein: the sand blocking plate (5) comprises a fixing plate (51) and a shielding plate (52), the fixing plate (51) is fixed with the bump (4), the shielding plate (52) is connected with the fixing plate (51), and two sides of the shielding plate (52) are close to the position of the trimming grinding wheel (26) and are provided with curved surfaces (521).

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