CN209887165U - High-reliability low-cost air tightness clamp - Google Patents
High-reliability low-cost air tightness clamp Download PDFInfo
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- CN209887165U CN209887165U CN201920415811.6U CN201920415811U CN209887165U CN 209887165 U CN209887165 U CN 209887165U CN 201920415811 U CN201920415811 U CN 201920415811U CN 209887165 U CN209887165 U CN 209887165U
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Abstract
The technical problem to be solved by the utility model is that the cost of the original air-tight clamp is high; the air channel length is easy to block to generate false alarm, the air channel length can also cause that the pressure difference between a workpiece and a non-workpiece is smaller, and the air-tight fixture with high reliability and low cost is designed.
Description
Technical Field
The utility model relates to a machine part finish machining designs technical field, especially relates to a high reliability low-cost gas tightness anchor clamps.
Background
The air-tight clamp is widely applied to the field of finish machining of mechanical parts and is an effective means for preventing mistakes, but because the existing air-tight clamp has poor reliability, high cost and high popularization difficulty, the original air-tight clamp enters from an oil bag of a numerical control machine, passes through a pull rod with the length of 500 mm, passes through a nut connected with the pull rod, passes through a spring clamp seat and a transition plate, finally reaches a positioning cylinder, passes through 6 parts in total through a route length, and can generate air passage blockage after long-term use, a clamping workpiece needs to reciprocate, an O-shaped sealing ring needs to be arranged, the O-shaped sealing ring is worn and failed after long-term use, the sealing ring needs to be replaced, the spring clamp and the positioning cylinder need to be disassembled, the spring clamp and the positioning cylinder need to be repaired after the spring clamp and the positioning cylinder are installed again, but the two parts cannot be used after being repaired for 3-5 times and need, cause very big waste, the utility model discloses an on spring clamp's surface, insert the cab apron with the trachea with power cylinder, then lead to a location section of thick bamboo with gas, through 2 parts altogether, it is convenient to take place the gas circuit to block up the dismantlement, and collet chuck does not need to dismantle save time.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is that the original air-tight clamp has high cost; the gas circuit is long, the blockage is easy to occur, the false alarm is generated, and the pressure difference between the workpiece and the workpiece which is not installed is small due to the long gas circuit.
The utility model provides a technical scheme that technical problem adopted shortens the length of gas circuit, inserts the trachea from the external diameter of anchor clamps promptly, because numerical control lathe has a function M19 main shaft directional, carries out this function anchor clamps promptly and can stop at fixed position, at this moment the installation cylinder with the trachea insert the surface of anchor clamps with the flexible glue head guarantee that the leakproofness is good. And then whether the air pressure is reduced is checked, so that the aim of checking the air tightness is fulfilled.
The utility model discloses a gas tightness anchor clamps of high reliability low cost, include straining screw, nut, collet chuck seat, collet chuck, cross cab apron, location section of thick bamboo and pull rod, collet chuck seat one end with collet chuck connects, the other end with the nut is connected, the pull rod passes collet chuck and pass through straining screw with the nut is connected, collet chuck seat is close to one side of collet chuck is provided with cross the cab apron, cross and be provided with on the cab apron a location section of thick bamboo, cross the footpath of cab apron and upwards seted up an air vent, vent pipe and venthole at least, the external gaseous detection device of air vent.
As the utility model discloses a preferred, gaseous detection device includes gas source, air-vent valve, digital display air pressure switch, cylinder, inserts the trachea, the gas source connecting tube process the air-vent valve, then process digital display air pressure switch is connected to at last insert on the trachea, the cylinder with it realizes to insert the trachea connection insert tracheal linear motion.
Therefore, the air cylinder is connected with the inserted air pipe, telescopic motion of the inserted air pipe is achieved through stretching of the air cylinder, the inserted air pipe is communicated with the vent hole when extending out, and the air cylinder can be controlled by an oil cylinder, a quick clamp or a motor.
As the utility model discloses a preferred, cross the footpath of cab apron and seted up an air vent at least, cross the cab apron with the venthole A has been seted up on the connection face of a location section of thick bamboo, the air vent with be provided with airflow channel A between the venthole A, a location section of thick bamboo with be provided with airflow channel B on the face that the cab apron is connected, a venthole B has been seted up at least to a location section of thick bamboo, venthole B with airflow channel B intercommunication, venthole A with airflow channel B intercommunication.
Therefore, the transition plate has the function of inserting the air pipe into the outer diameter of the part and transmitting the air to the positioning cylinder through the circular groove on the end face, namely receiving the air and transmitting the air to the positioning cylinder.
As the utility model discloses a preferred, it is provided with the flexible glue button head to insert the trachea top.
Therefore, the soft rubber round head is made of rubber or latex and the like, is more sealed in the air guide process in cooperation with the air vent, reduces the damage of the air pipe head and controls the numerical control machine.
As an optimization of the utility model, the transition plate is connected with the spring clamp head seat in a positioning way through a bolt.
As the utility model discloses a preferred, a location section of thick bamboo with cross the cab apron and pass through bolted connection, a location section of thick bamboo with cross all to be provided with the shaft hole on the cab apron, a location section of thick bamboo with it cup joints to cross the cab apron on the spring clamp.
Therefore, the positioning cylinder part has the functions of receiving gas from the transition plate and having at least three gas inlet holes, conducting the gas to the end face of the machined part, and when the workpiece is not installed, the gas escapes from the gap, so that the gas pressure is reduced by the digital display barometer for detecting the gas pressure, and the information is transmitted to the numerical control system, at the moment, the machine tool alarms, the collar does not have a gap between the positioning cylinders or the range of the allowed gap is about 0.04 mm, at the moment, the detection is passed, and the system continues to execute the program.
As the utility model discloses a preferred, the air vent is the bell mouth.
As the utility model discloses a preferred, a use method of high reliability low-cost gas tightness anchor clamps, including the dish that admits air, the cylinder, cross the cab apron, the location backer, air-vent valve and pneumatic alarm, the dish that admits air is installed on the lathe, after the directional instruction of main shaft is received to numerical control lathe NCN procedure, the main shaft can stop at a predetermined fixed position 0.1 second time, then carry out the cylinder and feed the instruction again, make cylinder concertina movement insert the spherical soft trachea and stay 0.2 second time in the cab apron bell mouth, when the NCN procedure execution gas tightness detects whether to be less than 90 kilopascals after the instruction 2 seconds, it is just stable because 2 seconds of atmospheric pressure to use 2 seconds time, if be less than 90 kilopascals and explain the work piece clamping does not put in place, the pneumatic alarm reports to the police, clamp the work piece again, if be higher than 90 kilopascals and explain the work piece clamping puts.
The utility model discloses following beneficial effect has:
the utility model discloses the suitability is very strong, has very big development prospect, compares with prior art, the utility model discloses the surface at gas tightness anchor clamps is ventilated and is realized the gas tightness inspection to carry out the main shaft location through numerical control lathe procedure M19, this anchor clamps simple structure is reliable, convenient to use, whether the clamping of ability snap judgments work piece targets in place, the clamping is efficient, intensity of labour and manufacturing cost have been reduced.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the gas circuit of the present invention;
fig. 3 is a schematic structural view of the transition plate of the present invention;
FIG. 4 is a schematic structural view of the positioning cylinder of the present invention;
in the figure, 1-tensioning screw, 2-nut, 3-spring clamp seat, 4-spring clamp, 5-transition plate, 51-vent hole, 52-air outlet hole A, 53-air flow channel A, 6-positioning cylinder, 61-air flow channel B, 62-air outlet hole B, 7-pull rod, 8-gas detection device, 81-gas source, 82-pressure regulating valve, 83-digital display air pressure switch, 84-cylinder and 85-insertion air pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the air-tight clamp with high reliability and low cost comprises a tensioning screw 1, a nut 2, a collet chuck seat 3, a collet chuck 4, a transition plate 5, a positioning cylinder 6 and a pull rod 7, and is characterized in that: one end of the collet chuck seat 3 is connected with the collet chuck 4, the other end of the collet chuck seat 3 is connected with the nut 2, the pull rod 7 penetrates through the collet chuck 4 and is connected with the nut 2 through the tensioning screw 1, one side of the collet chuck seat 3, which is close to the collet chuck 4, is provided with the transition plate 5, the transition plate 5 is provided with the positioning cylinder 6, the transition plate 5 is radially provided with at least one vent hole 51, a vent pipe and an air outlet hole, the vent hole 51 is externally connected with a gas detection device 8, the gas detection device 8 comprises a gas source 81, a pressure regulating valve 82, a digital display air pressure switch 83, a cylinder 84 and an insertion air pipe 85, the gas source 81 is connected with the pipe, passes through the pressure regulating valve 82, then passes through the digital display air pressure switch 83, and is finally connected to the insertion air pipe 85, the cylinder 84 is connected with the insertion air pipe 85 to realize the linear, the air cylinder 84 is connected with the insertion air pipe 85, telescopic movement of the insertion air pipe 85 is achieved through stretching of the air cylinder 84, the insertion air pipe 85 is communicated with the vent hole 51 when extending out, and the air cylinder 84 can also be controlled by an oil cylinder, a quick clamp or a motor.
As shown in fig. 1, 2, 3 and 4, in this embodiment, at least one vent hole 51 is formed in the radial direction of the transition plate 5, a vent hole a52 is formed in a connection surface between the transition plate 5 and the positioning cylinder 6, an air flow channel a53 is provided between the vent hole 51 and the vent hole a52, an air flow channel B61 is provided on a connection surface between the positioning cylinder 6 and the transition plate 5, the positioning cylinder 6 is at least provided with one vent hole B62, the vent hole B62 is communicated with the air flow channel B61, the vent hole a52 is communicated with the air flow channel B61, and the transition plate has a function of inserting an air pipe into the outer diameter of the component, and then transmitting the air to the positioning cylinder through a circular groove on an end surface, that is, receiving the air and transmitting the air to the positioning cylinder. The top of the inserted air pipe 85 is provided with a soft rubber round head, the soft rubber round head is made of rubber or latex and the like, the soft rubber round head is more sealed with the matching of the air vent 51 in the air guide process, the damage of an air pipe head is reduced, the control of a numerical control machine tool is realized, the transition plate 5 is connected with the spring clamp seat 3 in a positioning way through bolts, the positioning cylinder 6 is connected with the transition plate 5 through bolts, the positioning cylinder 6 and the transition plate 5 are both provided with shaft holes, the positioning cylinder 6 and the transition plate 5 are sleeved on the spring clamp 4, the positioning cylinder part has the functions of receiving the gas from the transition plate and at least having three air inlets, conducting the gas to the end face of a processed part, and when a workpiece is not installed, the gas can escape in a gap, so that a digital display barometer for detecting the gas pressure can reduce the gas pressure and transmit the information to a numerical control system, and then the machine tool can give, indicating that the ferrule has no gap between the positioning cylinders or is within an allowable gap range of about 0.04 mm, when the test is passed, the system continues to perform the procedure, and the vent hole 51 is a tapered hole.
A method for using an air tightness clamp with high reliability and low cost comprises an air inlet disc, a cylinder provided with a soft air pipe, a transition plate, a positioning backer, a pressure regulating valve and an air pressure alarm;
the air inlet disc is installed on a machine tool, after a numerical control lathe NCN program receives a main shaft orientation instruction, a main shaft stops at a preset fixed position for 0.1 second, then an air cylinder feeding instruction is executed, an air cylinder moves in a telescopic mode to enable a spherical soft air pipe to be inserted into a conical hole of a transition plate to stay for 0.2 second, when the NCN program executes an air tightness detection instruction for 2 seconds, whether air pressure is lower than 90 kilopascals is detected, the air pressure is stable for 2 seconds, if the air pressure is lower than 90 kilopascals, workpiece clamping is not in place, an air pressure alarm gives an alarm, the workpiece needs to be clamped again, and if the air pressure is higher than 90 kilopascals, the workpiece clamping is in place, and the program continues.
The utility model has the specific using process of the program number O7454, wherein M19 is the main shaft orientation; m50 is cylinder feed forward; m46 is the airtightness detection instruction. When the numerical control system executes the pressure M46, the machine tool detects the air pressure, when the air pressure is greater than or equal to 90 kPa, the machine tool continues to execute the next instruction downwards, and when the air pressure is less than 90 kPa, the machine tool stops running and gives an alarm. M51 is cylinder feed backward regardless of the detection result. The cylinder is used for inserting the gas pipe into the transition disc of the air-tight fixture and retreating after the gas pressure is detected.
The procedure was as follows:
the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (7)
1. The utility model provides a low-cost gas tightness anchor clamps of high reliability, includes straining screw (1), nut (2), collet chuck seat (3), collet chuck (4), crosses cab apron (5), a location section of thick bamboo (6) and pull rod (7), its characterized in that: one end of the spring chuck seat (3) is connected with the spring chuck (4), the other end of the spring chuck seat is connected with the nut (2), the pull rod (7) penetrates through the spring chuck (4) and is connected with the nut (2) through the tensioning screw (1), the transition plate (5) is arranged on one side, close to the spring chuck (4), of the spring chuck seat (3), the positioning cylinder (6) is arranged on the transition plate (5),
at least one vent hole (51), a vent pipeline and an air outlet hole are arranged in the radial direction of the transition plate (5),
the vent hole (51) is externally connected with a gas detection device (8).
2. A highly reliable and low-cost airtight clamp as defined in claim 1, wherein: the gas detection device (8) comprises a gas source (81), a pressure regulating valve (82), a digital display air pressure switch (83), an air cylinder (84) and an inserted air pipe (85),
the gas source (81) is connected with a pipeline, passes through the pressure regulating valve (82), then passes through the digital display air pressure switch (83) and finally is connected to the inserted air pipe (85), and the air cylinder (84) is connected with the inserted air pipe (85) to realize the linear movement of the inserted air pipe (85).
3. A highly reliable and low-cost airtight clamp as defined in claim 1, wherein: at least one vent hole (51) is arranged in the radial direction of the transition plate (5), an air outlet hole A (52) is arranged on the connecting surface of the transition plate (5) and the positioning cylinder (6), an air flow channel A (53) is arranged between the vent hole (51) and the air outlet hole A (52),
an air flow channel B (61) is arranged on the surface, connected with the transition plate (5), of the positioning cylinder (6), at least one air outlet B (62) is formed in the positioning cylinder (6), the air outlet B (62) is communicated with the air flow channel B (61), and the air outlet A (52) is communicated with the air flow channel B (61).
4. A highly reliable and low-cost airtight clamp as defined in claim 2, wherein: the top of the inserting trachea (85) is provided with a soft rubber round head.
5. A highly reliable and low-cost airtight clamp as defined in claim 1, wherein: the transition plate (5) is connected with the spring clamp head seat (3) in a positioning mode through bolts.
6. A highly reliable and low-cost airtight clamp as defined in claim 1 or 5, wherein: the positioning cylinder (6) is connected with the transition plate (5) through a bolt, shaft holes are formed in the positioning cylinder (6) and the transition plate (5), and the positioning cylinder (6) and the transition plate (5) are sleeved on the spring chuck (4).
7. A highly reliable and low-cost airtight clamp as defined in claim 3, wherein: the vent hole (51) is a tapered hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415811.6U CN209887165U (en) | 2019-03-29 | 2019-03-29 | High-reliability low-cost air tightness clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415811.6U CN209887165U (en) | 2019-03-29 | 2019-03-29 | High-reliability low-cost air tightness clamp |
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| Publication Number | Publication Date |
|---|---|
| CN209887165U true CN209887165U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920415811.6U Active CN209887165U (en) | 2019-03-29 | 2019-03-29 | High-reliability low-cost air tightness clamp |
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| CN (1) | CN209887165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968078A (en) * | 2019-03-29 | 2019-07-05 | 浙江辛子精工机械股份有限公司 | A kind of the air-tightness fixture and its application method of high reliability and low cost |
| CN112173190A (en) * | 2020-09-25 | 2021-01-05 | 常州瑞致机电科技有限公司 | High-efficient powder automatic packaging machine |
-
2019
- 2019-03-29 CN CN201920415811.6U patent/CN209887165U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968078A (en) * | 2019-03-29 | 2019-07-05 | 浙江辛子精工机械股份有限公司 | A kind of the air-tightness fixture and its application method of high reliability and low cost |
| CN109968078B (en) * | 2019-03-29 | 2023-09-05 | 浙江辛子精工机械股份有限公司 | High-reliability low-cost airtight clamp and use method thereof |
| CN112173190A (en) * | 2020-09-25 | 2021-01-05 | 常州瑞致机电科技有限公司 | High-efficient powder automatic packaging machine |
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Address after: No.298, Fangjiashan Road, Huzhou Economic and Technological Development Zone, Huzhou City, Zhejiang Province, 313000 Patentee after: Zhejiang Xinzi Precision Machinery Co.,Ltd. Patentee after: HUZHOU YUNSHUIQIAO PRECISION MACHINING MACHINERY CO.,LTD. Address before: No.298, Fangjiashan Road, Huzhou Economic and Technological Development Zone, Huzhou City, Zhejiang Province, 313000 Patentee before: ZHEJIANG 8+1 PRECISION MACHINERY Co.,Ltd. Patentee before: HUZHOU YUNSHUIQIAO PRECISION MACHINING MACHINERY CO.,LTD. |