CN213380978U

CN213380978U - Lengthened pneumatic grinder

Info

Publication number: CN213380978U
Application number: CN202022256460.4U
Authority: CN
Inventors: 杨秋明
Original assignee: Zhenjiang Danfeng Pneumatic Tools Co ltd
Current assignee: Zhenjiang Danfeng Pneumatic Tools Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-08
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses an add pneumatic grinder of elongated, the installation structure comprises a sleeve, the inside pivot that is equipped with of sleeve, the pivot both ends all rotate through antifriction bearing with the sleeve and are connected, the length of sleeve and pivot is all established to 800 types of sand 900mm and monomer shaping setting respectively, sleeve one end is equipped with control mechanism, the sleeve other end is equipped with the processing agency, control mechanism includes the casing, casing one end is fixed establish in telescopic inside and with sleeve inner wall fixed connection. The utility model discloses a sleeve and pivot monomer extension setting avoid the segmentation to connect, improve the precision of this device when using, and stability is higher, easily to the less deep hole of the very dark degree of depth of the nevertheless degree of depth of diameter, or the narrow and very dark edge in degree of depth in gap, carry out the processing, parallel key and packing ring combination can realize the chuck quick replacement that is bad to the use wearing and tearing, convenient to use.

Description

Lengthened pneumatic grinder

Technical Field

The utility model relates to a grinder technical field, concretely relates to add pneumatic grinder of elongated.

Background

The grinder is a common device used for sharpening various cutters and tools, and is also used for grinding, deburring, cleaning and the like of common small parts. It is mainly composed of base, grinding wheel, motor or other power source, bracket, protective cover and water feeder. The grinding machine can be classified into a vertical grinder, a suspended grinder, a bench grinder, a pneumatic grinder, etc., and among them, the pneumatic grinder is widely used because of its excellent performance.

However, the conventional pneumatic grinder is poor in stability and low in accuracy in actual use, and is difficult to perform processing such as burr removal, descaling, weld line grinding, sanding, polishing and the like on deep holes with small diameters and deep depths or corners with narrow gaps and deep depths in the manufacturing work, so that the pneumatic grinder is inconvenient to use.

Therefore, it is necessary to develop an elongated air grinder to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an add pneumatic grinder of elongated through sleeve and pivot monomer extension setting, avoids the segmentation to connect, improves the precision of this device when using, and stability is higher, and parallel key and packing ring can realize making things convenient for quick replacement to the chuck that uses wearing and tearing bad.

In order to achieve the above object, the present invention provides the following technical solutions: a lengthened pneumatic grinder comprises a sleeve, wherein a rotating shaft is arranged inside the sleeve, two ends of the rotating shaft are rotatably connected with the sleeve through rolling bearings, the lengths of the sleeve and the rotating shaft are respectively set to be 800-900mm and are respectively formed by a single body, one end of the sleeve is provided with a control mechanism, and the other end of the sleeve is provided with a processing mechanism;

the control mechanism comprises a shell, one end of the shell is fixedly arranged in the sleeve and fixedly connected with the inner wall of the sleeve, an air cylinder is fixedly arranged on the inner wall of the shell, a rotor is arranged at the output end of the air cylinder, one end of the rotor, far away from the air cylinder, is fixedly connected with a rotating shaft, a valve body is arranged on one side, far away from the rotating shaft, of the air cylinder, an air valve is arranged in the valve body, a cylindrical pin is arranged at the joint of the air valve and the valve body, the air valve and the valve body are fixedly connected through the cylindrical pin, an air connecting nozzle seat is arranged on the outer portion, far away;

the processing mechanism comprises a chuck, one end fixed connection of the rotor is kept away from by the chuck and the rotating shaft, the top of the end of the rotating shaft, away from the rotor, is provided with a flat key, the top of the flat key is provided with a gasket, the gasket is arranged on the outer side of the rotating shaft, the outer side of the gasket is provided with a bearing gland, the outer side of the bearing gland is fixedly connected with the inner wall of the sleeve, and the outer side of the end, away from the bearing, of the chuck is fixedly.

Preferably, a shaft retainer ring is fixedly arranged on the outer side of one end, close to the rotor, of the rotating shaft, and the shaft retainer ring is in contact with the rolling bearing.

Preferably, a spacer bush is arranged between one side of the cylinder, which is close to the rotating shaft, and the sleeve, and two ends of the spacer bush are fixedly connected with the cylinder and the sleeve respectively.

Preferably, one end of the knob switch, which is far away from the air nozzle base, is in contact with the shell.

Preferably, the sleeve is matched with the rotating shaft.

Preferably, a clamping nut is fixedly arranged on the outer side of one end, far away from the rotating shaft, of the chuck.

In the technical scheme, the utility model provides a technological effect and advantage:

compared with the prior art, this device rotates through the pivot and drives emery wheel bistrique or the alloy milling cutter rotation that the chuck was held and carry out work, sleeve and pivot monomer extension set up, avoid the segmentation to connect, improve the precision of this device when using when sturdy and durable, and stability is higher, the specially adapted is to the less deep hole of the very dark degree of depth of diameter, or the narrow and very dark edge of degree of depth in gap, carry out the processing, parallel key and packing ring can realize the chuck quick replacement that damages to the use wearing and tearing, high durability and convenient use.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the sleeve structure of the present invention;

FIG. 3 is a schematic view of the structure of the rotating shaft of the present invention;

FIG. 4 is an enlarged view of the structure of part A of FIG. 1 according to the present invention;

fig. 5 is an enlarged view of the structure of the part B of fig. 1 according to the present invention.

Description of reference numerals:

1 sleeve, 2 rotating shaft, 31 shell, 32 air cylinder, 33 rotor, 34 valve body, 35 air valve, 36 cylindrical pin, 37 air connecting nozzle seat, 38 knob switch, 41 chuck, 42 flat key, 43 gasket, 44 bearing gland, 5 shaft retainer, 6 spacer and 7 clamping nut.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides an elongated pneumatic grinder as shown in figures 1-5, which comprises a sleeve 1, wherein a rotating shaft 2 is arranged inside the sleeve 1, both ends of the rotating shaft 2 are rotatably connected with the sleeve 1 through a rolling bearing, the lengths of the sleeve 1 and the rotating shaft 2 are respectively set to 800 plus 900mm and are respectively formed by a single body, one end of the sleeve 1 is provided with a control mechanism, and the other end of the sleeve 1 is provided with a processing mechanism;

the control mechanism comprises a shell 31, one end of the shell 31 is fixedly arranged in the sleeve 1 and fixedly connected with the inner wall of the sleeve 1, the inner wall of the shell 31 is fixedly provided with a cylinder 32, the output end of the cylinder 32 is provided with a rotor 33, one end of the rotor 33, far away from the cylinder 32, is fixedly connected with the rotating shaft 2, one side, far away from the rotating shaft 2, of the cylinder 32 is provided with a valve body 34, an air valve 35 is arranged in the valve body 34, a cylindrical pin 36 is arranged at the joint of the air valve 35 and the valve body 34, the air valve 35 and the valve body 34 are fixedly connected through the cylindrical pin 36, an air receiving nozzle seat 37 is arranged outside one side, far away from the valve body 34, of the air;

the processing mechanism includes chuck 41, the one end fixed connection of rotor 33 is kept away from with pivot 2 to chuck 41, the one end top that rotor 33 was kept away from to pivot 2 is equipped with parallel key 42, parallel key 42 top is equipped with packing ring 43, the outside at pivot 2 is established to packing ring 43, the packing ring 43 outside is equipped with bearing cover 44, the bearing cover 44 outside and 1 inner wall fixed connection of sleeve, the fixed clamp nut 7 that is equipped with in the one end outside that the bearing was kept away from to chuck 41.

Further, in the above technical solution, a shaft retaining ring 5 is fixedly arranged on the outer side of one end of the rotating shaft 2 close to the rotor 33, and is used for positioning and fixing the rolling bearing between the rotating shaft 2 and the sleeve 1 to prevent the rolling bearing from moving axially, and the shaft retaining ring 5 is in contact with the rolling bearing.

Further, in the above technical solution, a spacer 6 is disposed between one side of the cylinder 32 close to the rotating shaft 2 and the sleeve 1, so that the rotating shaft 2 and the rolling bearing are fixed in position, the rotating shaft 2 is uniformly stressed, damage to the rotating shaft 2 during use is reduced, and two ends of the spacer 6 are respectively fixedly connected to the cylinder 32 and the sleeve 1.

Further, in the above technical solution, an end of the knob switch 38 away from the air nozzle seat 37 is in contact with the housing 31.

Further, in the technical scheme, the sleeve 1 is matched with the rotating shaft 2, so that the precision of the device in use is improved.

Further, in the above technical solution, a clamping nut 7 is fixedly disposed on an outer side of one end of the chuck 41 away from the rotating shaft 2, and the clamping nut 7 and the chuck 41 are combined to firmly clamp a grinding wheel or other cutting tools, so that the chuck 41 drives the grinding wheel or other cutting tools to perform cutting processing when rotating along with the rotating shaft 2.

The implementation mode is specifically as follows: when the utility model is used, the rotating shaft 2 and the sleeve 1 are both subjected to carburizing and quenching after rough machining, the outer circle is finely ground, the surface is plated with hard chrome to improve the rigidity and the wear resistance of the rotating shaft and the sleeve, a worker clamps the grinding wheel grinding head or the alloy milling cutter in the chuck 41 to communicate the air receiving nozzle seat 37 with the external compressed air gas circuit device, then the worker rotates the knob switch 38 to open the air valve 35, the external gas enters the valve body 34, the compressed air blows the blades in the cylinder 32 to drive the rotor 33 to rotate at the moment, and then the output rotational kinetic energy drives the rotating shaft 2 to rotate, so that the chuck 41 starts to rotate, the grinding wheel grinding head or the alloy milling cutter clamped by the chuck 41 is further driven to rotate to work, the cylinder 32 is the stator of the engine, the blades inside are blown by the compressed air to rotate to drive the rotor 33 to rotate, because its sleeve 1 and 2 monomer extension settings of pivot, avoid the segmentation to connect, thereby it is more steady when making pivot 2 rotate, sturdy and durable improves the precision of this device when using simultaneously, further improve its stability, be convenient for to the less deep hole of the degree of depth of the diameter, or the narrow and deep edge of the degree of depth of gap, carry out processing, this embodiment has specifically solved among the prior art present pneumatic grinder when the in-service use, poor stability, it is accurate not high, and be difficult to the less deep hole of the degree of depth of the diameter in the manufacturing work, or the narrow and deep edge of the degree of depth of gap, carry out burr removal, deoxidization skin, the coping welding seam, sand light, processing such as polishing, awkward problem.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides an add pneumatic grinder of elongated, includes sleeve (1), its characterized in that: a rotating shaft (2) is arranged in the sleeve (1), two ends of the rotating shaft (2) are rotatably connected with the sleeve (1) through rolling bearings, the lengths of the sleeve (1) and the rotating shaft (2) are respectively set to 800-900mm and are respectively formed by a single body, one end of the sleeve (1) is provided with a control mechanism, and the other end of the sleeve (1) is provided with a processing mechanism;

the control mechanism comprises a shell body (31), one end of the shell body (31) is fixedly arranged in the sleeve (1) and is fixedly connected with the inner wall of the sleeve (1), an air cylinder (32) is fixedly arranged on the inner wall of the shell (31), a rotor (33) is arranged at the output end of the air cylinder (32), one end of the rotor (33) far away from the cylinder (32) is fixedly connected with the rotating shaft (2), a valve body (34) is arranged on one side of the cylinder (32) far away from the rotating shaft (2), an air valve (35) is arranged in the valve body (34), a cylindrical pin (36) is arranged at the joint of the air valve (35) and the valve body (34), the air valve (35) is fixedly connected with the valve body (34) through a cylindrical pin (36), an air valve seat (37) is arranged outside one side of the air valve (35) far away from the valve body (34), and a knob switch (38) is arranged outside the air valve seat (37);

the processing mechanism comprises a chuck (41), one end fixed connection of the rotor (33) is kept away from the chuck (41) and the rotating shaft (2), one end top of the rotor (33) is kept away from the rotating shaft (2) and is provided with a flat key (42), the top of the flat key (42) is provided with a gasket (43), the gasket (43) is arranged on the outer side of the rotating shaft (2), the outer side of the gasket (43) is provided with a bearing gland (44), and the outer side of the bearing gland (44) is fixedly connected with the inner wall of the sleeve (1).

2. A grinder as claimed in claim 1, wherein: and a shaft retainer ring (5) is fixedly arranged on the outer side of one end, close to the rotor (33), of the rotating shaft (2), and the shaft retainer ring (5) is in contact with the rolling bearing.

3. A grinder as claimed in claim 1, wherein: a spacer bush (6) is arranged between one side, close to the rotating shaft (2), of the air cylinder (32) and the sleeve (1), and two ends of the spacer bush (6) are fixedly connected with the air cylinder (32) and the sleeve (1) respectively.

4. A grinder as claimed in claim 1, wherein: one end of the knob switch (38) far away from the air connecting nozzle seat (37) is contacted with the shell body (31).

5. A grinder as claimed in claim 1, wherein: the sleeve (1) is matched with the rotating shaft (2).

6. A grinder as claimed in claim 1, wherein: and a clamping nut (7) is fixedly arranged on the outer side of one end, far away from the rotating shaft (2), of the clamping head (41).