CN114952660B - Clamping device of movable vortex plate - Google Patents
Clamping device of movable vortex plate Download PDFInfo
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- CN114952660B CN114952660B CN202210668334.0A CN202210668334A CN114952660B CN 114952660 B CN114952660 B CN 114952660B CN 202210668334 A CN202210668334 A CN 202210668334A CN 114952660 B CN114952660 B CN 114952660B
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- spring
- deformation ring
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- 230000002093 peripheral effect Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 238000005056 compaction Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a clamping device of an movable vortex plate, and belongs to the field of machining. A clamping device of an movable vortex plate comprises a positioning module; the positioning module comprises a pin, a deformation ring, a spring and a motion assembly; when in positioning, the pin hole is sleeved outside the pin; the deformation ring has elasticity; the maximum outer diameter of the deformation ring is larger than or equal to the inner diameter of the positioning cavity; when in positioning, the positioning cavity is sleeved outside the deformation ring; one end of the spring is fixedly connected to the lower end of the output end of the motion assembly, and the other end of the spring is fixedly connected with the motion assembly; the output end of the motion assembly can move upwards in the vertical direction under the drive of external force, and can move downwards in the vertical direction under the drive of the elastic force of spring reset; the output end of the motion assembly is positioned inside the deformation ring. The movable vortex plate clamping device can clamp the movable vortex plate, avoids the condition that the output end of the piston impacts the bottom surface of the movable vortex plate due to elastic deformation generated by inertia when the spring is reset, and prolongs the service life of the movable vortex plate.
Description
Technical Field
The invention belongs to the field of machining, and particularly relates to a clamping device of an movable scroll.
Background
The lower end of the movable vortex plate is provided with a pin hole which is an open cavity and can be matched with a corresponding element to be fixed; the lower end of the movable vortex plate is provided with an open positioning cavity, the positioning cavity is circular, the inner wall of the positioning cavity is made of rigid materials, is not easy to deform, and can be matched with a clamp to be fixed; the pin hole is located the outside in location chamber, and during operation fixed pin hole and location chamber are in order to centre gripping movable vortex dish simultaneously.
The processing of the movable scroll in the scroll compressor is a technical problem all the time, in the prior art, the clamp clamps the movable scroll through upward movement or downward movement of the piston, when the piston moves downwards, the output end of the piston is connected with and fixed with the movable scroll, and the clamping of the movable scroll is completed at the moment; when the piston moves upward, the output end of the piston is released and separated from the orbiting scroll, at which point the orbiting scroll may be removed. In the prior art, the piston is generally controlled to move up and down through a spring, the spring stretches when the piston moves downwards, the piston is controlled to move upwards when the spring is reset, but the spring is reset to a position smaller than the free state of the spring due to the influence of inertia, the piston is driven to move upwards to a level higher than the free state of the spring and generate impact force, at the moment, the movable scroll is not detached, the output end of the piston head impacts the bottom surface of the movable scroll, the movable scroll is easily damaged, the service life of the movable scroll is shortened, and the appearance of the movable scroll is damaged.
Disclosure of Invention
The invention aims to solve the technical problem of providing the clamping device of the movable scroll, which can realize that the bottom positioning cavity of the movable scroll is in expansion connection to fix the movable scroll when in use, and simultaneously realize the clamping of the movable scroll by the matched connection of a pin hole and a pin, and avoid the condition that the output end of a piston impacts the bottom surface of the movable scroll due to elastic deformation generated by inertia when a spring is reset, reduce the possibility of damage to the movable scroll, prolong the service life of the movable scroll and reduce the cost.
The invention relates to a clamping device of an movable vortex plate, which comprises a positioning module;
the positioning module comprises a pin, a deformation ring, a spring and a motion assembly;
the pin is made of rigid materials and is matched with the pin hole; when in positioning, the pin hole is sleeved outside the pin;
the deformation ring is made of at least an elastic or plastic material to have an ability to deform outward to change the outer diameter of the deformation ring; the maximum outer diameter of the deformation ring is larger than or equal to the inner diameter of the positioning cavity; when in positioning, the positioning cavity is sleeved outside the deformation ring;
one end of the spring is fixedly connected to the lower end of the output end of the motion assembly, and the other end of the spring is fixedly connected with the motion assembly so as to keep static; in the positioning state, the spring is in a releasing state, and before positioning and when the movable scroll is disassembled, the spring is in a stretching state;
the output end of the motion assembly has the capability of moving upwards in the vertical direction under the drive of external force, and has the capability of moving downwards in the vertical direction under the drive of the elastic force of spring reset; the output end of the motion assembly is positioned at the inner side of the deformation ring and is abutted with the deformation ring through an inclined plane, so that the deformation ring is pressed by the driving module to deform outwards.
As a further improvement of the invention, the positioning module further comprises a limiting ring; the limiting ring is fixedly sleeved on the outer side of the deformation ring; in a relaxed state, a gap is reserved between the limiting ring and the deformation ring; in the positioning state, the inner wall of the limiting ring is abutted with the outer wall of the deformation ring so as to limit the maximum deformation degree of the deformation ring.
As a further improvement of the invention, the deformation ring is made of elastic or plastic material, and a plurality of non-penetrating deformation grooves are formed in the deformation ring along the axis from the bottom end of the deformation ring, so that the outer wall forms a plurality of deformation wings with outward deformation capability.
As a further improvement of the invention, the positioning module further comprises a positioning column; a moving chamber is formed in the positioning column; the upper end of the motion chamber is provided with a through hole which is communicated with the outside; the driving assembly comprises a piston, and the piston comprises a piston rod and a piston head; the piston rod is fixedly connected to the upper end of the piston head; the piston rod is connected in the through hole in a sliding way, penetrates through the through hole, and the upper end part of the piston rod is always positioned on the upper side of the positioning column; the end part of the piston rod positioned on the upper side of the positioning column is directly or indirectly abutted with the deformation ring through an inclined plane; the lower side of the moving chamber is provided with a control chamber, the moving chamber is communicated with the control chamber and is separated by a piston head, and the piston head is in sliding connection with the inner wall of the moving chamber and keeps dynamic seal; one end of the spring is fixedly connected with the lower bottom surface of the piston head, and the other end of the spring is fixedly connected with the bottom surface of the control chamber; in the positioning state, the spring is in a releasing state, and before positioning and when the movable scroll is disassembled, the spring is in a stretching state; one side of the control chamber is provided with an air charging hole which is communicated with the control chamber to control the air pressure change in the control chamber.
As a further improvement of the invention, a sliding ring is detachably connected outside the end part of the piston rod, which is positioned on the upper side of the positioning column; the sliding ring is made of rigid materials, and the peripheral surface of the sliding ring is an inclined plane so that the sliding ring is of a ring-shaped structure with a wide upper part and a narrow lower part; the inner wall of the deformation ring is an inclined plane matched with the outer peripheral surface of the sliding ring.
As a further improvement of the invention, a clearance exists between the piston rod and the inner wall of the through hole; the deformation ring is sealed with the positioning cavity in a stretching state, and a gap exists between the free state and the positioning cavity, so that the air pressure change in the movement cavity affects the air pressure in the working cavity.
As a further improvement of the invention, in the positioning state, a closed chamber is arranged between the movable scroll and the positioning module; the air pressure of the chamber is variable such that the ambient atmospheric pressure provides a vertically downward pressure to the orbiting scroll.
As a further improvement of the invention, the clamp further comprises a compacting module; the compaction module is communicated with the cavity; the compaction module is communicated with an external air extraction device so as to reduce the air pressure of the cavity.
Compared with the prior art, the invention has the beneficial effects that: the movable vortex plate is clamped through the expansion connection of the positioning cavity at the bottom of the movable vortex plate and the matching of one pin hole and one pin, so that the machining precision is improved, the clamping difficulty is reduced, the clamping efficiency is improved, the condition that the output end of the piston impacts the bottom surface of the movable vortex plate due to elastic deformation generated by inertia during spring reset is avoided, the possibility of damage to the movable vortex plate is reduced, the service life of the movable vortex plate is prolonged, and the cost is reduced;
the outer surface of the sliding ring is an inclined surface with wide upper part and narrow lower part, so that the sliding ring is gradually unfolded when the sliding ring moves downwards to control the deformation of the deformation ring, the deformation ring is prevented from being excessively deformed in a short time to be unable to recover, and meanwhile, the deformation ring is gradually abutted when being abutted with the positioning cavity, so that the abrasion is greatly reduced, and the service life of a product is prolonged;
the upper end of the positioning column is connected with a limiting ring to limit the maximum deformation state of the deformation ring, so that the inner wall of the positioning cavity is prevented from being expanded due to overlarge deformation of the deformation ring, and the movable vortex plate is protected;
the arrangement of the negative pressure pipeline enables the movable vortex disc to be well compressed, when the negative pressure pipeline is opened, the air pressure of the lower side of the movable vortex disc clamped at the upper end of the positioning column is lower than the atmospheric pressure, and the movable vortex disc is compressed on the positioning column by the atmospheric pressure, so that the operation is convenient;
the front spring of the movable vortex plate is clamped to be in a free state, the sliding ring is used for expanding the deformation ring, the movable vortex plate cannot be placed in the working cavity, the movable vortex plate is inflated to control the upward movement of the sliding ring until the deformation ring is restored to be in the free state, and the movable vortex plate can be placed in the working cavity; when compressed gas in the control chamber is discharged through the air charging hole, the spring is reset to control the sliding ring to prop the deformation ring so as to fix the movable scroll, and at the moment, the inertia of elastic deformation of the spring can not impact the bottom of the movable scroll, so that the damage to the movable scroll is avoided, the protection effect is achieved, and the service life of the movable scroll is prolonged;
a gap exists between the piston rod and the inner wall of the through hole; the deformation ring is in a propping-open state and is sealed with the positioning cavity, a gap exists between the free state and the positioning cavity, so that when the movable vortex plate needs to be taken down, the piston moves upwards, the deformation ring is in a free state at the moment, the gap exists between the deformation ring and the positioning cavity, and compressed gas moves upwards to the working cavity when the piston moves upwards, so that the air pressure in the working cavity is equal to or greater than the atmospheric pressure, and the movable vortex plate is convenient to take down; the arrangement reduces the arrangement of the sealing ring in the through hole, omits the step of additionally opening the air charging device, ensures that the device is simpler to manufacture, has more convenient operation steps, and relatively reduces the cost.
Drawings
FIG. 1 is a schematic view of a clamping device for an orbiting scroll according to the present invention;
FIG. 2 is a schematic view of the structure of the movable scroll of the present invention during the mating process with the fixed column;
FIG. 3 is a schematic cross-sectional view of a fixing post according to the present invention;
FIG. 4 is an isometric view of the orbiting scroll of the present invention;
FIG. 5 is a schematic view of the bottom surface structure of the orbiting scroll of the present invention;
FIG. 6 is a schematic view of a deformed ring structure according to the present invention;
FIG. 7 is a schematic cross-sectional view of the deformation ring of the fixed column clamping orbiting scroll in the free state;
FIG. 8 is a schematic enlarged view of a cross-sectional structure of a front clamping portion of a fixed column clamping movable scroll of the present invention;
FIG. 9 is a schematic cross-sectional view of the stationary post of the present invention after deformation of the deformation ring when clamping the orbiting scroll;
FIG. 10 is a schematic enlarged view of a cross-sectional structure of a clamping portion of the fixed column clamping the orbiting scroll of the present invention;
fig. 11 is a cross-sectional view of the fixed column of the present invention when clamping the orbiting scroll.
Detailed Description
First embodiment: referring to fig. 1-11, a clamping device for an orbiting scroll includes a positioning module 2 for clamping the orbiting scroll 1 and a hydraulic plate.
The number of the positioning modules 2 is at least two, the positioning modules 2 are fixedly arranged on the upper side of the hydraulic plate, and the hydraulic plate provides a stable working environment for the positioning modules 2 and the bottom plate.
The positioning module 2 is connected with a positioning column, a bottom plate, a pin 20, a limiting ring 21, a deformation ring 22, a sliding ring 23 and a compacting module.
The upper end of the positioning column is provided with a working chamber, the upper side of the working chamber is of an open structure, the movable scroll 1 is arranged at the upper end of the positioning column during positioning, and when the movable scroll 1 is fixed on the working chamber, the working chamber is covered and kept sealed by the movable scroll 1; the positioning column is internally provided with a moving cavity, and the upper end of the moving cavity is provided with a through hole which is communicated with the working cavity; the lower side of the motion chamber is of an open structure;
the bottom plate is fixedly arranged at the lower side of the positioning column, a control chamber is arranged in the bottom plate, one side of the control chamber is provided with an air charging hole 26, and the air charging hole 26 is communicated with the control chamber; the control chamber is arranged at the lower side of the movement chamber, the control chamber is communicated with the movement chamber, a piston 24 is connected with the connection part of the movement chamber and the control chamber in a sliding way, and the piston 24 comprises a piston rod and a piston head;
the piston rod is fixedly connected to the upper end of the piston head; the piston rod is positioned in the through hole and has a gap with the inner wall of the through hole, the piston rod penetrates through the through hole, and the upper end part of the piston rod is always positioned on the upper side of the positioning column; the piston head is in sliding connection with the inner wall of the control chamber and keeps dynamic seal, so that the control chamber on the lower side of the piston head is kept sealed; the upper end of the piston head is always lower than the opening level of the air charging hole 26, and the lower end of the piston head is always higher than the control chamber;
a spring 25 is fixedly arranged in the control chamber, the upper end of the spring 25 is fixedly connected with the bottom surface of the lower end of the piston head, and the lower end of the spring 25 is fixedly connected with the lower bottom surface of the control chamber;
before positioning or during releasing, ventilation and pressure stabilization are carried out in the inflation hole 26, the air pressure in the control cavity is increased, the piston 24 slides upwards, and the spring 25 is driven to stretch upwards; controlling the sliding of piston 24 by venting air into inflation port 26 to vary the air pressure within the control chamber; when the positioning is performed, the air charging hole 26 stops ventilation and is opened, compressed air in the control chamber is discharged, meanwhile, the spring 25 is contracted downwards to restore to a free state, the spring 25 assists the compressed air to be discharged, and the piston 24 returns.
The sliding ring 23 is positioned in the working chamber and embedded in the groove of the piston 24 so as to be detachably connected with the piston 24; the peripheral surface of the sliding ring 23 is an inclined surface, so that the sliding ring 23 is of a ring-shaped structure with a wide upper part and a narrow lower part; the sliding ring 23 is made of a rigid material;
the deformation ring 22 is positioned in the working chamber and sleeved outside the sliding ring 23; the inner wall of the deformation ring 22 is an inclined surface matched with the outer peripheral surface of the sliding ring 23; the inner wall surface of the deformation ring 22 is in contact with the outer peripheral surface of the sliding ring 23; the deformation ring 22 is made of elastic or plastic material, and a plurality of non-penetrating deformation grooves are formed in the deformation ring 22 along the axis from the bottom end of the deformation ring so that the outer wall forms a plurality of deformation wings 221 with outward deformation capability; the deformation wings 221 can deform outwards under the supporting force of the sliding ring 23, a positioning cavity at the lower end of the movable scroll 1 is connected with the deformation ring 22 in a matched manner during working, and when the deformation wings 221 are spread, the deformation wings are connected with the inner surface of the positioning cavity in an expanding manner so as to fix the movable scroll 1;
the limiting ring 21 is positioned in the working chamber and sleeved outside the deformation ring 22; the stop collar 21 is made of a rigid material; in a relaxed state, a gap is reserved between the limiting ring 21 and the deformation ring 22; in the positioning state, the inner wall of the limiting ring 21 is abutted against the outer wall of the deformation ring 22 so as to limit the maximum deformation degree of the deformation ring 22, and the problem that damage is caused to the movable vortex plate 1 due to the fact that the outward opening angle of the deformation wings 221 of the deformation ring 22 is too large during positioning is effectively prevented.
The pin 20 is made of rigid materials, is fixedly arranged at the upper end of the positioning column, the position of the pin 20 corresponds to the position of a pin hole, the shape of the pin 20 corresponds to the shape of a cavity of the pin hole, and the pin hole is matched and connected with the pin 20 to fix the movable scroll 1;
the compaction module comprises a vacuum conduit 27 and a negative pressure conduit 28; the vacuum pipeline 27 is arranged inside the positioning column and is mutually independent from the control chamber; one end of the vacuum pipeline 27 is communicated with the working chamber, and the other end is independently communicated with a negative pressure pipeline 28; the negative pressure pipeline 28 is arranged in the bottom plate and connected with an external air extracting device to extract air from the working chamber; when the air extractor is started, the air pressure in the working chamber is reduced so that the movable scroll 1 is pressed on the positioning column by the external atmospheric pressure.
Working principle: before the clamping device clamps the movable scroll 1, the spring 25 in the control chamber is in a free state, the piston 24 is kept stationary, the level of the upper end face of the sliding ring 23 fixed at the upper end of the piston rod is lower than that of the upper end face of the deformation ring 22, at the moment, the outer peripheral face of the sliding ring 23 can generate outward thrust to the deformation ring 22, the deformation ring 22 is kept in a stretched state, and at the moment, the movable scroll 1 cannot be put in and clamped;
the control chamber is inflated by the inflation device through the inflation hole 26, the air pressure in the control chamber is increased, the piston 24 slides upwards, the spring 25 is driven to stretch upwards, the sliding ring 23 moves upwards under the driving of the piston 24, and the sliding ring 23 continuously moves upwards until the outer peripheral surface of the sliding ring 23 is in contact with the inner wall surface of the deformation ring 22 due to the fact that the sliding ring 23 is of a ring-shaped structure with wide upper part and narrow lower part and the inner wall of the deformation ring 22 is an inclined surface matched with the outer peripheral surface of the sliding ring 23, and the deformation ring 22 is reset and restored to a free state; at this time, the piston 24 is static, the control device moves the movable scroll 1 and places the movable scroll at the upper end of the positioning column, the pin 20 completely enters into the pin hole at the lower side of the movable scroll 1, and the working chamber is covered and kept sealed by the movable scroll 1;
at this time, the air charging hole 26 is opened to discharge compressed air in the control chamber, so that the air pressure in the control chamber is consistent with the external air pressure, at this time, when the stretched spring 25 is restored to a free state, a downward pulling traction force is generated on the piston 24, the piston 24 moves downward to drive the sliding ring 23 to move downward, and as the sliding ring 23 is of a ring-shaped structure with a wide upper part and a narrow lower part and the outer peripheral surface of the sliding ring 23 is abutted against the inner wall surface of the deformation ring 22, during the downward movement of the sliding ring 23, the outer peripheral surface of the sliding ring 23 can generate an outward thrust on the deformation ring 22, so that the deformation wings 221 of the deformation ring 22 deform outwards and form an expanding connection with the inner wall of the positioning cavity to fix the movable vortex disc 1, and at this time, the outer wall of the deformation ring 22 is abutted against the inner wall of the positioning cavity to form a sealing structure, so that the air in the positioning cavity cannot enter the working cavity outside the positioning cavity; after the deformation wings 221 deform outwards to a certain angle, the outer wall of the deformation ring 22 is abutted against the inner wall of the limiting ring 21, at the moment, the deformation ring 22 deforms outwards to the maximum, the deformation wings 221 do not expand outwards any more, and the problem that damage is caused to the movable vortex disc 1 due to the fact that the outward expansion angle of the deformation wings 221 of the deformation ring 22 is too large during positioning is effectively prevented;
at this time, the external air extractor communicated with the negative pressure pipeline 28 is started, air is extracted from the working chamber through the vacuum pipeline 27 and the negative pressure pipeline 28, and the air pressure in the working chamber is reduced so that the movable scroll 1 is pressed on the positioning column by the external atmospheric pressure.
When the movable scroll 1 is required to be removed after machining, an air charging device is used for charging air into the control chamber through the air charging hole 26, the air pressure in the control chamber is increased, the piston 24 slides upwards and drives the spring 25 to stretch upwards, at the moment, the sliding ring 23 moves upwards under the drive of the piston 24, the sliding ring 23 continuously moves upwards until the outer peripheral surface of the sliding ring 23 is in contact with the inner wall surface of the deformation ring 22, the deformation ring 22 is reset and restored to a free state, at the moment, a gap exists between the outer wall of the deformation ring 22 and the inner wall of the positioning chamber, the piston 24 pushes air in the movement chamber to enable the air to move upwards, the air is filled in the whole working chamber through the gap between the outer wall of the deformation ring 22 and the inner wall of the positioning chamber, so that the air pressure in the working chamber is equal to or greater than the external air pressure to push the movable scroll 1 away from the positioning column, and at the moment, the movable scroll 1 can be separated from the positioning column by upwards clamping the movable scroll 1.
Claims (6)
1. The utility model provides a clamping device of movable scroll for the centre gripping moves vortex dish (1), moves vortex dish (1) lower extreme and has seted up location chamber and cotter hole, its characterized in that: comprises a positioning module (2);
the positioning module (2) comprises a pin (20), a deformation ring (22), a spring (25) and a motion assembly;
the pin (20) is made of rigid materials, and the pin (20) is matched with the pin hole; when in positioning, the pin hole is sleeved outside the pin (20);
the deformation ring (22) is made of at least an elastic material to have an ability to deform outward so as to change the outer diameter of the deformation ring (22); the maximum outer diameter of the deformation ring (22) is larger than or equal to the inner diameter of the positioning cavity; when in positioning, the positioning cavity is sleeved outside the deformation ring (22);
one end of the spring (25) is fixedly connected to the lower end of the output end of the motion assembly, and the other end of the spring is fixedly connected with the motion assembly so as to keep static; in the positioning state, the spring (25) is in a relaxed state, and before positioning and when the movable scroll is disassembled, the spring (25) is in a stretched state;
the output end of the motion assembly has the capability of moving upwards in the vertical direction under the drive of external force, and has the capability of moving downwards in the vertical direction under the drive of the elastic force of spring reset; the output end of the motion assembly is positioned at the inner side of the deformation ring (22) and is abutted with the deformation ring (22) through an inclined plane, so that the deformation ring (22) is pressed by the driving module to deform outwards;
the positioning module (2) also comprises a positioning column; a moving chamber is formed in the positioning column; the upper end of the motion chamber is provided with a through hole which is communicated with the outside; the motion assembly comprises a piston (24), the piston (24) comprising a piston rod and a piston head; the piston rod is fixedly connected to the upper end of the piston head; the piston rod is connected in the through hole in a sliding way, penetrates through the through hole, and the upper end part of the piston rod is always positioned on the upper side of the positioning column; the end part of the piston rod positioned on the upper side of the positioning column is directly or indirectly abutted with the deformation ring (22) through an inclined plane; the lower side of the moving chamber is provided with a control chamber, the moving chamber is communicated with the control chamber and is separated by a piston head, and the piston head is in sliding connection with the inner wall of the moving chamber and keeps dynamic seal;
a gap exists between the piston rod and the inner wall of the through hole; the expansion state of the deformation ring (22) is sealed with the positioning cavity, and a gap exists between the free state and the positioning cavity, so that the air pressure change in the movement cavity affects the air pressure in the working cavity;
in a positioning state, a closed cavity is formed between the movable scroll (1) and the positioning module (2); the air pressure of the chamber is variable so that the external atmospheric pressure provides a vertically downward pressure to the orbiting scroll (1).
2. A clamping device for an orbiting scroll as recited in claim 1, wherein: the positioning module (2) also comprises a limiting ring (21); the limiting ring (21) is fixedly sleeved on the outer side of the deformation ring (22); in a relaxed state, a gap is reserved between the limiting ring (21) and the deformation ring (22); in a positioning state, the inner wall of the limiting ring (21) is abutted with the outer wall of the deformation ring (22) so as to limit the maximum deformation degree of the deformation ring (22).
3. A clamping device for an orbiting scroll as recited in claim 1, wherein: the deformation ring (22) is made of elastic material, and a plurality of non-penetrating deformation grooves are formed in the deformation ring (22) along the axis from the bottom end of the deformation ring, so that the outer wall forms a plurality of deformation wings (221) with outward deformation capability.
4. A clamping device for an orbiting scroll as recited in claim 1, wherein: one end of the spring (25) is fixedly connected with the lower bottom surface of the piston head, and the other end of the spring is fixedly connected with the bottom surface of the control chamber; in the positioning state, the spring (25) is in a relaxed state, and before positioning and when the movable scroll is disassembled, the spring (25) is in a stretched state; one side of the control chamber is provided with an air charging hole (26), and the air charging hole (26) is communicated with the control chamber to control the air pressure change in the control chamber.
5. A clamping device for an orbiting scroll as recited in claim 1, wherein: a sliding ring (23) is detachably connected outside the end part of the piston rod, which is positioned on the upper side of the positioning column; the sliding ring (23) is made of rigid materials, and the peripheral surface of the sliding ring (23) is an inclined plane so that the sliding ring (23) is of a ring-shaped structure with a wider upper part and a narrower lower part; the inner wall of the deformation ring (22) is an inclined surface matched with the outer peripheral surface of the sliding ring (23).
6. A clamp for an orbiting scroll as recited in claim 1, wherein: the clamp further comprises a compression module; the compaction module is communicated with the cavity; the compaction module is communicated with an external air extraction device so as to reduce the air pressure of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210668334.0A CN114952660B (en) | 2022-06-14 | 2022-06-14 | Clamping device of movable vortex plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210668334.0A CN114952660B (en) | 2022-06-14 | 2022-06-14 | Clamping device of movable vortex plate |
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| Publication Number | Publication Date |
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| CN114952660A CN114952660A (en) | 2022-08-30 |
| CN114952660B true CN114952660B (en) | 2024-02-13 |
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| CN202210668334.0A Active CN114952660B (en) | 2022-06-14 | 2022-06-14 | Clamping device of movable vortex plate |
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| KR20040091364A (en) * | 2003-04-21 | 2004-10-28 | 엘지전자 주식회사 | Apparatus for protecting overcompress of scroll compressor |
| KR200402497Y1 (en) * | 2005-09-23 | 2005-12-01 | 주식회사 삼천리기계 | Multi Hydraulic Chuck for Machine Tools |
| CN106584165A (en) * | 2016-10-19 | 2017-04-26 | 广州市昊志机电股份有限公司 | Rotating table device with vacuum suction function |
| CN208358643U (en) * | 2018-06-15 | 2019-01-11 | 重庆万邦精密模具有限公司 | Three-D clamping device |
| CN210790147U (en) * | 2019-09-29 | 2020-06-19 | 合肥墨研涡旋科技有限公司 | Film fixture device |
| CN113021025A (en) * | 2019-12-09 | 2021-06-25 | 北京精雕科技集团有限公司 | Positioning and clamping device for scroll plate |
| CN111113092A (en) * | 2019-12-27 | 2020-05-08 | 中国航发湖南南方宇航工业有限公司 | Method for machining impeller blades under clamping of integral impeller clamp |
| US11207798B1 (en) * | 2020-12-01 | 2021-12-28 | Shanghai Zhengshi Technology Co., Ltd. | Multi-set clamping fixture for diamond machining |
| CN114102216A (en) * | 2021-12-14 | 2022-03-01 | 安徽光智科技有限公司 | Connecting tool for clamping optical lens |
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