CN113941632B - Cylinder casing air leakage groove processing device - Google Patents
Cylinder casing air leakage groove processing device Download PDFInfo
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- CN113941632B CN113941632B CN202111088281.7A CN202111088281A CN113941632B CN 113941632 B CN113941632 B CN 113941632B CN 202111088281 A CN202111088281 A CN 202111088281A CN 113941632 B CN113941632 B CN 113941632B
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- 238000003754 machining Methods 0.000 claims description 14
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000013022 venting Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 12
- 240000005002 Erythronium dens canis Species 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Abstract
The invention discloses a cylinder shell air leakage groove processing device which comprises a pushing driving piece, a pushing shaft, a fixing piece and a plurality of pressing groove pieces, wherein the pushing shaft is in sliding connection with the fixing piece along the axis direction of the pushing shaft, the pushing driving piece drives the fixing piece to slide, the pressing groove pieces are circumferentially arranged along the axis of the pushing shaft, the pressing groove pieces are in sliding connection with the fixing piece, the sliding direction of the pressing groove pieces is a direction far away from the axis of the pushing shaft, a plurality of pressing groove convex teeth are arranged on the outer side wall of the pressing groove pieces, the inner side wall of the pressing groove pieces is in contact with the pushing shaft, a guide cambered surface is arranged on the side wall of the pushing shaft, which is in contact with the pressing groove pieces, and a retraction spring which enables the pressing groove pieces to slide towards the axis direction of the pushing shaft is arranged on the pressing groove pieces. The invention provides a processing device for an air leakage groove of an air cylinder shell, which can realize rapid processing of the air leakage groove and has the advantages of simple structure, convenience in operation, low processing cost, high processing efficiency and the like.
Description
Technical Field
The invention relates to the technical field of cylinder shells in gear shifting mechanisms, in particular to a cylinder shell air leakage groove machining device.
Background
The cylinder is a driving piece commonly used in automobile gear shifting mechanisms, in order to avoid the cylinder in the gear shifting mechanism damaging the cylinder and other parts connected with the cylinder at the limit position, a plurality of pressure relief structures are required to be arranged, and the inventor of the application performs pressure relief through arranging a pressure relief groove on the inner side wall of a cylinder shell. The size of the air leakage groove is smaller, the number of the air leakage grooves is more, and if the air leakage groove is processed by a numerical control machine tool, the problems of high processing cost and low processing efficiency can be caused. Therefore, the cylinder shell air leakage groove machining device is required to be designed, the air leakage groove can be machined rapidly, and the cylinder shell air leakage groove machining device has the advantages of being simple in structure, convenient to operate, low in machining cost, high in machining efficiency and the like.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a numerical control machine tool is adopted for machining a gas leakage groove, so that the machining cost is high and the machining efficiency is low.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a cylinder casing air escape groove processingequipment, including promoting the driving piece, push away the axle, mounting and a plurality of indent spare, push away the axle and push away the axis direction sliding connection of axle with the mounting, push away the axis circumference setting of driving piece drive mounting, a plurality of indent spare is followed to push away the axle, indent spare and mounting sliding connection, the slip direction of indent spare is the direction of keeping away from pushing away the axle axis, be equipped with a plurality of indent dogtooth on the lateral wall of indent spare, the inside wall of indent spare and push away the axle contact, be equipped with the direction cambered surface on the lateral wall that pushes away axle and indent spare contact, be equipped with on the indent spare and make indent spare to push away the gliding spring that contracts of axis direction of axle.
In the above technical solution, the pushing driving member may be a hydraulic cylinder, an air cylinder, a push rod motor, a screw-nut mechanism or other mechanisms capable of providing a linear driving force. The working process of the processing device is as follows: the cylinder shell is fixed on the processing device through the fixed tool, the opening end of the cylinder shell faces the pressing groove piece, then the cylinder shell is moved to the outer side of the pressing groove piece through the fixed tool, the position of a gas leakage groove to be processed is aligned with the pressing groove convex tooth, then the pushing driving piece is started to enable the pushing shaft to transversely move, the pressing groove piece is enabled to extend outwards through the guide cambered surface on the pushing shaft, the pressing groove convex tooth extrudes the inner side wall of the cylinder shell, the gas leakage groove is processed, then the pushing driving piece drives the pushing shaft to retract, the pressing groove piece retracts under the action of the retracting spring, and then the fixed tool is retracted, and the cylinder shell is taken down. The processing device is simple in structure, convenient to operate and high in processing efficiency.
Preferably, the inner side wall of the pressing groove piece is provided with a roller, and the pressing groove piece is contacted with the pushing shaft through the roller. The structure can reduce friction force between the pressing groove piece and the pushing shaft.
Preferably, the pressing groove piece comprises a plurality of pressing blocks which are arranged along the axial direction of the pushing shaft, the plurality of pressing blocks are respectively connected with the fixing piece in a sliding mode, and the pressing groove convex teeth are arranged on the outer side walls of the pressing blocks. When the size of the air leakage groove required to be machined on the cylinder shell is overlarge, the whole air leakage groove is machined together, so that the unprocessed position of the inner wall of the cylinder is deformed, and the cylinder cannot be normally used due to overlarge deformation. According to the technical scheme, the air leakage groove is divided into multiple times of processing, so that the stress on the inner wall of the air cylinder is reduced, and the deformation of the inner wall of the air cylinder is reduced. And the pushing shaft can be pushed out once to realize processing, so that the processing efficiency is high.
Preferably, the sliding direction of the press blocks is inclined to one side of the axial direction of the pushing shaft, and the inclination angles of the press blocks are sequentially increased; when all the pressing blocks are pushed out to the outermost side, the convex teeth of the pressing grooves on two adjacent pressing blocks are partially overlapped; in the axial direction of the pushing shaft, the radius of the guiding cambered surface is firstly increased and then decreased.
When dividing into processing many times with the air escape slot, there is certain clearance between the indent dogtooth on the briquetting of difference, when carrying out an air escape slot processing through different briquetting, can make break off between the air escape slot, therefore, above-mentioned technical scheme can make briquetting scheme release in proper order, after the briquetting release, retract immediately, the back briquetting is released again, the indent dogtooth of back briquetting overlaps with the indent dogtooth part on the briquetting of preceding piece, can solve the junction of indent dogtooth unable processing out the air escape slot. By controlling the pushing-out and retraction sequence of the pressing blocks to be smooth, the mutual interference of the adjacent pressing blocks can be avoided.
Preferably, the angle of inclination of the press block closest to the push driving member is 0 degrees.
Preferably, the pressing blocks are in sliding connection with the fixing pieces through fixing guide rods, one ends of the fixing guide rods are connected with the fixing pieces, sliding blocks are arranged on the fixing guide rods and correspond to the pressing blocks one by one, sliding grooves are formed in the pressing blocks and correspond to the sliding blocks one by one, and the sliding blocks are in sliding connection with the corresponding sliding grooves. The structure can realize the connection of the pressing block and the fixing piece, and can set an inclination angle according to the requirement.
Preferably, the device further comprises a central fixed shaft, wherein the central fixed shaft is fixed with the fixed piece, the central fixed shaft penetrates through the center of the pushing shaft, and two ends of the fixed guide rod are respectively fixed with the fixed piece and the central fixed shaft. The structure can increase the structural strength of the fixed guide rod.
Preferably, a limiting block is arranged on the pushing shaft. The structure can limit the pushing shaft, and avoid excessive pushing of the pushing shaft.
Preferably, the groove pressing pieces are provided with arc grooves, the arc grooves on the plurality of groove pressing pieces form a circular ring, the retraction springs are annular extension springs connected end to end, and the retraction springs are arranged in the circular ring formed by the arc grooves. The structure can realize the retraction action of the pressing groove piece.
Preferably, the pushing driving member is a hydraulic cylinder or an air cylinder or a push rod motor.
The utility model provides a cylinder casing air leakage groove processingequipment, including pushing the driving piece, push away the axle, mounting and a plurality of indent spare, push away the axle and follow axis direction sliding connection with the mounting, push away the driving piece and drive the mounting and slide, a plurality of indent spare sets up along the axis circumference of pushing away the axle, indent spare and mounting sliding connection, the slip direction of indent spare is the direction of keeping away from pushing away the axle axis, be equipped with a plurality of indent dogtooth on the lateral wall of indent spare, the inside wall of indent spare contacts with pushing away the axle, be equipped with first inclined plane on pushing away the lateral wall of axle and indent spare, be equipped with the second inclined plane with first inclined plane adaptation on the inside wall of indent spare; the pressing groove piece is provided with a retraction spring which enables the pressing groove piece to slide towards the pushing shaft.
In the above technical solution, the pushing driving member may be a hydraulic cylinder, an air cylinder, a push rod motor, a screw-nut mechanism or other mechanisms capable of providing a linear driving force. The working process of the processing device is as follows: the cylinder shell is fixed on the processing device through the fixed tool, the opening end of the cylinder shell faces the pressing groove piece, then the cylinder shell is moved to the outer side of the pressing groove piece through the fixed tool, the position of a gas leakage groove to be processed is aligned with the pressing groove convex tooth, then the pushing driving piece is started to enable the pushing shaft to transversely move, the pressing groove piece is enabled to extend outwards through the guide cambered surface on the pushing shaft, the pressing groove convex tooth extrudes the inner side wall of the cylinder shell, the gas leakage groove is processed, then the pushing driving piece drives the pushing shaft to retract, the pressing groove piece retracts under the action of the retracting spring, and then the fixed tool is retracted, and the cylinder shell is taken down. The processing device is simple in structure, convenient to operate and high in processing efficiency.
Preferably, a limiting block is arranged on the pushing shaft. The structure can limit the pushing shaft, and avoid excessive pushing of the pushing shaft.
Preferably, the groove pressing pieces are provided with arc grooves, the arc grooves on the plurality of groove pressing pieces form a circular ring, the retraction springs are annular extension springs connected end to end, and the retraction springs are arranged in the circular ring formed by the arc grooves. The structure can realize the retraction action of the pressing groove piece.
The beneficial effects of the invention are as follows: (1) The rapid processing of the air leakage groove can be realized, the processing device has simple structure, convenient operation and high processing efficiency; (2) Divide into the processing many times with the air escape groove, make cylinder inner wall atress reduce, reduce the deflection of cylinder inner wall, and push away the axle and once release and can realize processing, machining efficiency is high: (3) By controlling the pushing-out and retracting sequence of the pressing blocks to be smooth, the mutual interference of the adjacent pressing blocks can be avoided, and the problem that the air leakage groove cannot be machined at the joint of the convex teeth of the pressing groove can be solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural view of embodiment 3;
fig. 3 is a schematic structural view of embodiment 4.
In the figure: the device comprises a pushing driving piece 1, a pushing shaft 2, a guiding cambered surface 2.1, a limiting block 2.2, a first inclined surface 2.3, a fixing piece 3, a pressing groove piece 4, a pressing groove convex tooth 4.1, a pressing block 4.2, a sliding groove 4.2.1, an arc groove 4.3, a second inclined surface 4.4, a retraction spring 5, a roller 6, a fixed guide rod 7, a sliding block 7.1, a central fixed shaft 8, a shell body 9, a sealing end 9.1, an opening end 9.2, a leakage groove 9.3, a communicating cavity 9.4 and a buffering counter bore 9.5.
Detailed Description
The invention is further described below with reference to the drawings and specific embodiments.
Example 1:
as shown in fig. 1, the cylinder shell air leakage groove processing device comprises a pushing driving piece 1, a pushing shaft 2, a fixing piece 3 and a plurality of pressing groove pieces 4, wherein the pushing driving piece 1 is a hydraulic cylinder or an air cylinder or a push rod motor. Push away 2 and mounting 3 along pushing away the axis direction sliding connection of 2, push away driving piece 1 and drive mounting 3 to slide, a plurality of indent spare 4 evenly sets up along pushing away the axis circumference of 2, indent spare 4 and mounting 3 sliding connection, the slip direction of indent spare 4 is the direction of keeping away from pushing away 2 axis, be equipped with a plurality of indent dogtooth 4.1 on the lateral wall of indent spare 4, a plurality of indent dogtooth 4.1 evenly sets up along pushing away the axis circumference of 2, the inside wall of indent spare 4 is equipped with direction cambered surface 2.1 on the lateral wall that pushes away 2 and indent spare 4 contact with pushing away 2, be equipped with metal gyro wheel 6 on the inside wall of indent spare 4, indent spare 4 passes through gyro wheel 6 and pushes away 2 contact, the axis of rotation axis and pushing away 2 of gyro wheel 6 are perpendicular. The pushing shaft 2 is provided with a limiting block 2.2. The pressing groove 4 is provided with a retraction spring 5 for sliding the pressing groove 4 in the axial direction of the push shaft 2. The groove pressing pieces 4 are provided with arc grooves 4.3, the arc grooves 4.3 on the plurality of groove pressing pieces 4 are surrounded into a circular ring, the retraction springs 5 are annular extension springs connected end to end, and the retraction springs 5 are arranged in the circular ring surrounded by the arc grooves 4.3.
In the above technical solution, the pushing driving member 1 may be a hydraulic cylinder, an air cylinder, a push rod motor, a screw-nut mechanism or other mechanisms capable of providing a linear driving force. The working process of the processing device is as follows: the cylinder shell is fixed on a processing device through a fixing tool, the opening end 9.2 of the cylinder shell faces the pressing groove part 4, then the cylinder shell is moved to the outer side of the pressing groove part 4 through the fixing tool, the position of a gas leakage groove 9.3 to be processed is aligned with the pressing groove convex tooth 4.1, then the pushing driving part 1 is started, the pushing shaft 2 transversely moves, the guiding cambered surface 2.1 on the pushing shaft 2 enables the pressing groove part 4 to extend outwards, the pressing groove convex tooth 4.1 extrudes the inner side wall of the cylinder shell, the gas leakage groove 9.3 is processed, then the pushing driving part 1 drives the pushing shaft 2 to retract, the pressing groove part 4 retracts under the action of the retracting spring 5, and then the fixing tool is retracted, and the cylinder shell is taken down. The processing device is simple in structure, convenient to operate and high in processing efficiency.
Example 2:
as shown in fig. 1, on the basis of embodiment 1, the pressing groove member 4 includes a plurality of pressing blocks 4.2 arranged along the axial direction of the pushing shaft 2, the plurality of pressing blocks 4.2 are respectively slidably connected with the fixing member 3, and the pressing groove teeth 4.1 are disposed on the outer side walls of the pressing blocks 4.2. The sliding direction of the pressing blocks 4.2 is inclined to one side of the axial direction of the pushing shaft 2, the inclination direction can be the left side in fig. 3 or the right side in fig. 3, and the inclination angles of a plurality of pressing blocks 4.2 are sequentially increased; the angle of inclination of the press block 4.2 closest to the push drive 1 is 0 degrees. When all the pressing blocks 4.2 are pushed out to the outermost side, the pressed groove convex teeth 4.1 on the two adjacent pressing blocks 4.2 are partially overlapped; in the axial direction of the push shaft 2, the radius of the guide cambered surface 2.1 increases and then decreases.
The device also comprises a central fixed shaft 8, wherein the central fixed shaft 8 is fixed with the fixed piece 3, the central fixed shaft 8 penetrates through the center of the pushing shaft 2, and two ends of the fixed guide rod 7 are respectively fixed with the fixed piece 3 and the central fixed shaft 8. The pressing block 4.2 is in sliding connection with the fixing piece 3 through a fixing guide rod 7, one end of the fixing guide rod 7 is connected with the fixing piece 3, a sliding block 7.1 is arranged on the fixing guide rod 7, the sliding blocks 7.1 are in one-to-one correspondence with the pressing block 4.2, sliding grooves 4.2.1 are arranged on the pressing block 4.2, the sliding grooves 4.2.1 are in one-to-one correspondence with the sliding blocks 7.1, and the sliding blocks 7.1 are in sliding connection with the corresponding sliding grooves 4.2.1. When the size of the air leakage groove 9.3 which needs to be machined on the cylinder shell is oversized, the whole air leakage groove 9.3 is machined together, the unprocessed position of the inner wall of the cylinder is deformed, and the cylinder cannot be normally used due to the oversized deformation. According to the technical scheme, the air leakage groove 9.3 is divided into multiple times of processing, so that the stress of the inner wall of the air cylinder is reduced, and the deformation of the inner wall of the air cylinder is reduced. And the pushing shaft 2 can be pushed out once to realize processing, so that the processing efficiency is high. When dividing the air release groove 9.3 into a plurality of times of processing, a certain gap exists between the pressing groove convex teeth 4.1 on different pressing blocks 4.2, and when the air release groove 9.3 is processed through different pressing blocks 4.2, the air release groove 9.3 can be possibly broken, so the pressing blocks 4.2 can be sequentially pushed out, after the pressing blocks 4.2 are pushed out, immediately retract, the pressing groove convex teeth 4.1 of the pressing blocks 4.2 are pushed out again, and the pressing groove convex teeth 4.1 on the pressing blocks 4.2 of the pressing blocks 4.2 are partially overlapped, so that the problem that the air release groove 9.3 cannot be processed at the connecting part of the pressing groove convex teeth 4.1 can be solved. By controlling the pushing-out and retraction of the pressing blocks 4.2 smoothly, the mutual interference of the adjacent pressing blocks 4.2 can be avoided.
Example 3:
as shown in fig. 2, the cylinder shell air leakage groove processing device comprises a pushing driving piece 1, a pushing shaft 2, a fixing piece 3 and a plurality of pressing groove pieces 4, wherein the pushing shaft 2 is in sliding connection with the fixing piece 3 along the axis direction, the pushing driving piece 1 drives the fixing piece 3 to slide, the plurality of pressing groove pieces 4 are uniformly arranged along the axis circumferential direction of the pushing shaft 2, the pressing groove pieces 4 are in sliding connection with the fixing piece 3, the sliding direction of the pressing groove pieces 4 is a direction far away from the axis of the pushing shaft 2, a plurality of pressing groove convex teeth 4.1 are arranged on the outer side wall of the pressing groove pieces 4, a plurality of pressing groove convex teeth 4.1 are uniformly arranged along the axis circumferential direction of the pushing shaft 2, the inner side wall of the pressing groove pieces 4 is in contact with the pushing shaft 2, a first inclined surface 2.3 is arranged on the side wall of the pushing shaft 2 and the pressing groove pieces 4, and a second inclined surface 4.4 adapted to the first inclined surface 2.3 is arranged on the inner side wall of the pressing groove pieces 4; the pushing shaft 2 is provided with a limiting block 2.2. The pressing groove member 4 is provided with a retraction spring 5 for sliding the pressing groove member 4 toward the push shaft 2. The groove pressing pieces 4 are provided with arc grooves 4.3, the arc grooves 4.3 on the groove pressing pieces 4 are surrounded into a circular ring, the retraction springs 5 are annular extension springs connected end to end, and the retraction springs 5 are arranged in the circular ring surrounded by the arc grooves 4.3.
In the above technical solution, the pushing driving member 1 may be a hydraulic cylinder, an air cylinder, a push rod motor, a screw-nut mechanism or other mechanisms capable of providing a linear driving force. The working process of the processing device is as follows: the cylinder shell is fixed on a processing device through a fixing tool, the opening end 9.2 of the cylinder shell faces the pressing groove part 4, then the cylinder shell is moved to the outer side of the pressing groove part 4 through the fixing tool, the position of a gas leakage groove 9.3 to be processed is aligned with the pressing groove convex tooth 4.1, then the pushing driving part 1 is started, the pushing shaft 2 transversely moves, the guiding cambered surface 2.1 on the pushing shaft 2 enables the pressing groove part 4 to extend outwards, the pressing groove convex tooth 4.1 extrudes the inner side wall of the cylinder shell, the gas leakage groove 9.3 is processed, then the pushing driving part 1 drives the pushing shaft 2 to retract, the pressing groove part 4 retracts under the action of the retracting spring 5, and then the fixing tool is retracted, and the cylinder shell is taken down. The processing device is simple in structure, convenient to operate and high in processing efficiency.
Example 4:
as shown in fig. 3, a cylinder housing for an automobile gear shifting mechanism comprises a housing body 9, wherein one end of the housing body 9 is a sealing end 9.1, the other end of the housing body 9 is an opening end 9.2, a plurality of air leakage grooves 9.3 are formed in the inner side wall of the housing body 9, the plurality of air leakage grooves 9.3 are uniformly formed in the circumferential direction of the axis of the housing body 9, and the air leakage grooves 9.3 are formed in one side close to the sealing end 9.1. The cylinder shell is internally provided with a piston, the piston is provided with a sealing ring, and the length of the air leakage groove 9.3 in the axial direction of the shell body 9 is smaller than the width of the sealing ring. The outer side wall of the shell body 9 is provided with a communication cavity 9.4, one end of the communication cavity 9.4 is communicated with the sealing end 9.1 of the shell body 9, and the other end of the communication cavity 9.4 is flush with the opening end 9.2. The outside of the sealing end 9.1 of the housing body 9 is provided with spoke-like stiffening ribs. The inner side of the sealing end 9.1 of the housing body 9 is provided with a buffer counter bore 9.5.
In the technical scheme, the air leakage groove 9.3 can enable the two ends of the piston to be communicated when the air cylinder is at the limit position, so that the air cylinder and other parts connected with the air cylinder are prevented from being damaged by excessive pressure. It can be ensured that the air escape groove 9.3 communicates the two sides of the piston when the piston is in the position of the air escape groove 9.3. The buffer counterbore 9.5 can accommodate part of the gas and increase stability in extreme positions.
The beneficial effects of the invention are as follows: (1) The air leakage groove can enable the two ends of the piston to be communicated when the air cylinder is at the limit position, so that the air cylinder and other parts connected with the air cylinder are prevented from being damaged by excessive pressure; (2) The rapid processing of the air leakage groove can be realized, the processing device has simple structure, convenient operation, low processing cost and high processing efficiency; (3) Divide into the processing many times with the air escape groove, make cylinder inner wall atress reduce, reduce the deflection of cylinder inner wall, and push away the axle and once release and can realize processing, machining efficiency is high: (4) By controlling the pushing-out and retracting sequence of the pressing blocks to be smooth, the mutual interference of the adjacent pressing blocks can be avoided, and the problem that the air leakage groove cannot be machined at the joint of the convex teeth of the pressing groove can be solved.
Claims (5)
1. The cylinder shell air leakage groove machining device is characterized by comprising a pushing driving piece, a pushing shaft, a fixing piece and a plurality of pressing groove pieces, wherein the pushing shaft is in sliding connection with the fixing piece along the axial direction of the pushing shaft, the pushing driving piece drives the fixing piece to slide, the pressing groove pieces are circumferentially arranged along the axial direction of the pushing shaft, the pressing groove pieces are in sliding connection with the fixing piece, the sliding direction of the pressing groove pieces is a direction far away from the axial direction of the pushing shaft, a plurality of pressing groove convex teeth are arranged on the outer side wall of the pressing groove pieces, the inner side wall of the pressing groove pieces is in contact with the pushing shaft, a guide cambered surface is arranged on the side wall of the pushing shaft, which is in contact with the pressing groove pieces, and a retraction spring which enables the pressing groove pieces to slide towards the axial direction of the pushing shaft is arranged on the pressing groove pieces;
the pressing groove piece comprises a plurality of pressing blocks which are arranged along the axial direction of the pushing shaft, the pressing blocks are respectively connected with the fixing piece in a sliding manner, and the pressing groove convex teeth are arranged on the outer side wall of the pressing blocks;
the sliding direction of the pressing blocks inclines to one side of the axial direction of the pushing shaft, and the inclination angles of a plurality of pressing blocks are sequentially increased; when all the pressing blocks are pushed out to the outermost side, the convex teeth of the pressing grooves on two adjacent pressing blocks are partially overlapped; in the axial direction of the pushing shaft, the radius of the guide cambered surface is firstly increased and then decreased;
the angle of inclination of the press block closest to the push driving member is 0 degrees.
2. The cylinder housing leakage groove machining device according to claim 1, wherein rollers are arranged on the inner side walls of the groove pressing pieces, and the groove pressing pieces are contacted with the pushing shaft through the rollers.
3. The cylinder shell air leakage groove machining device according to claim 1, wherein the pressing blocks are slidably connected with the fixing pieces through fixing guide rods, one ends of the fixing guide rods are connected with the fixing pieces, sliding blocks are arranged on the fixing guide rods and correspond to the pressing blocks one by one, sliding grooves are formed in the pressing blocks and correspond to the sliding blocks one by one, and the sliding blocks are slidably connected with the corresponding sliding grooves.
4. A cylinder case leakage groove processing apparatus according to claim 3, further comprising a center fixing shaft fixed to the fixing member, the center fixing shaft penetrating through a center of the push shaft, both ends of the fixing guide rod being fixed to the fixing member and the center fixing shaft, respectively.
5. A cylinder housing venting groove machining apparatus according to claim 1 or 2, wherein the push driving member is a hydraulic cylinder or a push rod motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111088281.7A CN113941632B (en) | 2021-09-16 | 2021-09-16 | Cylinder casing air leakage groove processing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111088281.7A CN113941632B (en) | 2021-09-16 | 2021-09-16 | Cylinder casing air leakage groove processing device |
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| CN113941632A CN113941632A (en) | 2022-01-18 |
| CN113941632B true CN113941632B (en) | 2024-01-02 |
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| CN113932009B (en) * | 2021-09-16 | 2023-04-07 | 浙江安统汽车部件有限公司 | Cylinder shell for automobile gear shifting mechanism and air leakage groove machining device |
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2021
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| JPH0615354A (en) * | 1992-07-02 | 1994-01-25 | Showa Alum Corp | Manufacture of heat exchange tube |
| CN107191431A (en) * | 2017-07-18 | 2017-09-22 | 李容生 | A kind of Rodless cylinder for ensuring to seal zero leakage |
| CN207899936U (en) * | 2017-12-29 | 2018-09-25 | 中远泰工业自动化科技有限公司 | A kind of automation pipeline indent production line |
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