CN210062073U - Piston bonding teflon solidification frock - Google Patents
Piston bonding teflon solidification frock Download PDFInfo
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- CN210062073U CN210062073U CN201920603333.1U CN201920603333U CN210062073U CN 210062073 U CN210062073 U CN 210062073U CN 201920603333 U CN201920603333 U CN 201920603333U CN 210062073 U CN210062073 U CN 210062073U
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- teflon
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- pressing plate
- elastic pressing
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Abstract
A piston bonding Teflon curing tool relates to the technical field of air compressors and comprises a metal sleeve, a PVC elastic pressing plate, a PVC elastic clamping ring and a base, wherein an upper end opening of the metal sleeve is in a round platform shape with a large top and a small bottom, the PVC elastic pressing plate is in a non-closed cylindrical shape, one side end of the PVC elastic pressing plate is provided with clamping grooves in a preset number, the other side end of the PVC elastic pressing plate is provided with inserting blocks in a preset number, the inserting blocks are matched with the clamping grooves, the inner side of the bottom end of the PVC elastic pressing plate is provided with an annular flange, the thickness of the PVC elastic clamping ring is matched with the groove width of an annular groove of a piston of a Teflon belt to be bonded, the base comprises a bottom plate and a cylindrical boss arranged on the bottom plate, the outer diameter of the boss is the same as the outer diameter of the bottom end of the piston of the Teflon belt to be bonded, and the piston, the bonding operation is convenient, and the lamination is tight after the use.
Description
The technical field is as follows:
the utility model relates to an air compressor manufactures technical field, especially relates to a piston bonding teflon solidification frock.
Background art:
the air compressor mainly comprises a cylinder, a piston, a crankshaft, a connecting rod, a machine body and other parts. At present, these parts are still made of metal, and therefore, lubrication is indispensable. With the continuous development of industry and the requirements on safety and economy, research and production units are exploring how to realize oil-free lubrication of air compressors in recent years. The polytetrafluoroethylene has good self-lubricating property, so that oil-free lubrication of the air compressor can be realized by manufacturing the air compressor piston coating and the piston ring by using the composite material mainly comprising the polytetrafluoroethylene. At present, the piston ring adopts polytetrafluoroethylene to already use in batches, and piston skirt portion bonding teflon area (polytetrafluoroethylene) is still in research and experimental stage in order to realize air compressor machine antifriction and self-lubricating process, the main problem that exists at present does not have suitable frock fixed when the teflon area that has certain elasticity and hardness bonds to the piston surface, fixed back teflon area often appears the phenomenon of being out of alignment with the piston edge, simultaneously teflon area and piston skirt portion can not realize seamless butt joint, lack one among the prior art and can improve the laminating quality, improve work efficiency's special frock in order to be used for the laminating of teflon area and piston surface.
The utility model has the following contents:
in order to solve the technical problem, the utility model provides a piston bonding teflon solidification frock can be used for the bonding of teflon area with piston skirt portion, has made things convenient for the bonding operation, and it is comparatively tight to laminate after using.
The utility model discloses a realize through following technical scheme:
the utility model provides a piston bonding teflon solidification frock, characterized by, includes metal sleeve, PVC elastic pressing plate, PVC snap ring and base, metal sleeve's upper end opening is big-end-up's round platform form, PVC elastic pressing plate is the cylindric of unclosed, and open one side end of PVC elastic pressing plate has the draw-in groove of predetermineeing quantity, and another side end of PVC elastic pressing plate is equipped with the inserted block with draw-in groove looks adaptation of predetermineeing quantity, and PVC elastic pressing plate's bottom inboard is equipped with annular flange, the protruding length of annular flange is less than the thickness of the teflon area of waiting to bond, PVC snap ring is unclosed, the thickness of PVC snap ring and the groove width looks adaptation of the annular of the piston of the teflon area of waiting to bond, the ring width of PVC snap ring is greater than the groove depth of the annular of the piston of the teflon area of waiting to bond, the base includes the bottom plate and locates the cylindric boss on the bottom plate, the outer diameter of the boss is the same as the outer diameter of the bottom end of the piston of the Teflon belt to be bonded.
In another aspect of the present invention, the inner diameter of the metal sleeve is equal to the outer diameter of the whole structure formed after the teflon band and the PVC elastic pressing plate are wrapped on the piston.
In another aspect of the present invention, the difference between the width of the PVC snap ring and the depth of the groove of the ring groove of the piston to be bonded is smaller than the thickness of the teflon band to be bonded.
In another aspect of the present invention, the upper end and the lower end of the PVC snap ring are clearance-fitted with the upper end and the lower end of the ring groove of the piston of the teflon band to be bonded, respectively.
In another aspect of the present invention, the height of the boss is equal to the thickness of the annular flange in the vertical direction.
In another aspect of the present invention, the slot is clearance-fit with the insert block.
In another aspect of the present invention, the metal sleeve has a predetermined number of through grooves formed therein, the through grooves penetrating through the wall of the metal sleeve.
The utility model has the advantages that: the piston bonding Teflon curing tool can be used for bonding a Teflon belt and a piston skirt part, facilitates bonding operation, and is tight and flush in bonding after use.
Description of the drawings:
fig. 1 is a schematic sectional view of the overall structure of the embodiment of the present invention.
Fig. 2 is a schematic view of a three-dimensional structure of the PVC elastic snap ring according to the embodiment of the present invention.
Fig. 3 is a schematic view of a three-dimensional structure of the PVC elastic pressing plate according to the embodiment of the present invention.
Fig. 4 is a schematic view of a three-dimensional structure of a metal sleeve according to an embodiment of the present invention.
Fig. 5 is a schematic view of a three-dimensional structure of a base in an embodiment of the present invention.
In the drawings: 1. PVC snap ring, 2, metal sleeve, 3, Teflon area, 4, PVC elastic pressure plate, 5, annular flange, 6, air compressor piston, 7, inserted block, 8, draw-in groove, 9, logical groove, 10, boss, 11, bottom plate, 12, base.
The specific implementation mode is as follows:
the following will further explain the embodiments of the present invention with reference to the drawings and examples:
in the description of the present invention, it should be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a piston bonding teflon solidification frock, includes metal sleeve 2, PVC elastic pressing plate 4, PVC elastic snap ring 1 and base 12, the upper end opening of metal sleeve 2 is big-end-up's round platform form, PVC elastic pressing plate 4 is the cylindric of not closed, and open one side end of PVC elastic pressing plate 4 has the draw-in groove 8 of predetermineeing quantity, and another side of PVC elastic pressing plate 4 is equipped with the inserted block 7 of predetermineeing quantity and draw-in groove 8 looks adaptation, and inserted block 7 and PVC elastic pressing plate 4 structure as an organic whole, and the bottom inboard of PVC elastic pressing plate 4 is equipped with annular flange 5, and annular flange 5 and PVC elastic pressing plate 4 structure as an organic whole, the protrusion length of annular flange 5 is less than the thickness of the teflon area 3 of waiting to bond, PVC elastic snap ring 1 is not closed, the thickness of PVC elastic snap ring 1 and the groove width looks adaptation of the annular of the piston of the teflon area of waiting to bond, the ring width of PVC elastic snap ring 1 is greater than the depth of the annular groove of the piston of the teflon area, the base includes bottom plate 11 and locates cylindric boss 10 on bottom plate 11, boss 10 and bottom plate 11 structure as an organic whole, the boss 10 external diameter is the same with the piston bottom external diameter of treating the teflon area that bonds. The inner diameter of the metal sleeve 2 is equal to the outer diameter of the whole structure formed by wrapping the piston with the Teflon belt and the PVC elastic pressing plate 4. The difference value between the ring width of the PVC elastic snap ring 1 and the groove depth of the ring groove of the piston of the Teflon belt to be bonded is smaller than the thickness of the Teflon belt to be bonded. The upper end and the lower end of the PVC elastic snap ring 1 are in clearance fit with the upper end and the lower end of an annular groove of a piston of the Teflon belt to be bonded respectively. The height of the boss 10 is equal to the vertical thickness of the annular flange 5. The clamping groove 8 is in clearance fit with the inserting block 7. The metal sleeve 2 is provided with a preset number of through grooves 9 penetrating through the wall of the metal sleeve 2, and the through grooves 9 are uniformly surrounded on the wall of the metal sleeve 2.
During the use, scribble bond coat's teflon area with the internal surface and wrap up in air compressor machine piston skirt portion, with PVC snap ring 1 cover in air compressor machine piston 6's annular, wrap up PVC elastic pressing plate 4 at teflon outband periphery, the front end of the inserted block 7 on PVC elastic pressing plate 4 inserts respectively in the draw-in groove 8 that corresponds with it, make the upper end top in teflon area during the operation on PVC snap ring 1, make the lower extreme top in teflon area on the cyclic annular flange 5 of 4 bottoms of PVC elastic pressing plate, keep flushing. And then the whole air compressor piston provided with the Teflon belt, the PVC elastic snap ring 1 sleeve and the PVC elastic pressing plate 4 is pressed into the metal sleeve 2 arranged on the base bottom plate 11 through the upper end opening of the metal sleeve 2 by a hydraulic cylinder or other press fitting devices until the bottom end of the piston is pressed on the boss 10 of the base. In the press fitting process, the inserting block 7 on the PVC elastic pressing plate 4 further extends into the corresponding clamping groove 8, and the Teflon belt tightly and flatly wraps the piston skirt part of the air compressor under the tightening action of the metal sleeve 2. After the curing of the bonding coating is finished, the whole air compressor piston additionally provided with the Teflon belt, the PVC elastic snap ring 1 sleeve and the PVC elastic pressing plate 4 is extruded out through a hydraulic cylinder or other press fitting devices, and the PVC elastic snap ring 1 sleeve and the PVC elastic pressing plate 4 are removed, so that the bonding of the Teflon belt is finished.
The upper end opening of the metal sleeve 2 is in a circular truncated cone shape with a large upper part and a small lower part, and the structure can enable the air compressor piston to easily enter the metal sleeve 2; the annular flanges 5 at the bottom ends of the PVC elastic snap ring 1 and the PVC elastic pressing plate 4 have the functions of limiting and aligning the Teflon belt, and prevent the Teflon belt from sliding relative to the outer surface of the piston and the inner surface of the PVC elastic pressing plate 4 in the press fitting process. The through grooves 9 in the metal sleeve 2 are arranged, so that the deformation amount of the metal sleeve 2 in the press fitting process is increased, and the metal sleeve 2 can generate larger deformation amount under the condition of no damage.
The piston bonding Teflon curing tool facilitates the bonding operation of the Teflon belt and the piston skirt, and is tight and flush in bonding after use and good in use effect.
In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a piston bonding teflon solidification frock, characterized by, includes metal sleeve, PVC elastic pressing plate, PVC snap ring and base, metal sleeve's upper end opening is big-end-up's round platform form, PVC elastic pressing plate is the cylindric of unclosed, and open one side end of PVC elastic pressing plate has the draw-in groove of predetermineeing quantity, and another side end of PVC elastic pressing plate is equipped with the inserted block with draw-in groove looks adaptation of predetermineeing quantity, and PVC elastic pressing plate's bottom inboard is equipped with annular flange, the protruding length of annular flange is less than the thickness of the teflon area of waiting to bond, PVC snap ring is unclosed, the thickness of PVC snap ring and the groove width looks adaptation of the annular of the piston of the teflon area of waiting to bond, the ring width of PVC snap ring is greater than the groove depth of the annular of the piston of the teflon area of waiting to bond, the base includes the bottom plate and locates the cylindric boss on the bottom plate, the outer diameter of the boss is the same as the outer diameter of the bottom end of the piston of the Teflon belt to be bonded.
2. The piston bonding teflon curing tool according to claim 1, wherein the inner diameter of the metal sleeve is equal to the outer diameter of an integral structure formed by wrapping a teflon belt and a PVC elastic pressing plate on a piston.
3. The piston bonding teflon curing tool as claimed in claim 1, wherein the difference between the ring width of the PVC snap ring and the groove depth of the ring groove of the piston of the teflon belt to be bonded is smaller than the thickness of the teflon belt to be bonded.
4. The piston bonding teflon curing tool as claimed in claim 1, wherein the upper end and the lower end of the PVC snap ring are in clearance fit with the upper end and the lower end of the ring groove of the piston to which the teflon band is to be bonded, respectively.
5. The piston bonding teflon curing tool of claim 1, wherein the height of the boss is equal to the vertical thickness of the annular flange.
6. The piston bonding teflon curing tool according to claim 1, wherein the clamping grooves are in clearance fit with the insertion blocks, and a preset number of through grooves penetrating through the wall of the metal sleeve are formed in the metal sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920603333.1U CN210062073U (en) | 2019-04-29 | 2019-04-29 | Piston bonding teflon solidification frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920603333.1U CN210062073U (en) | 2019-04-29 | 2019-04-29 | Piston bonding teflon solidification frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210062073U true CN210062073U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920603333.1U Active CN210062073U (en) | 2019-04-29 | 2019-04-29 | Piston bonding teflon solidification frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210062073U (en) |
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2019
- 2019-04-29 CN CN201920603333.1U patent/CN210062073U/en active Active
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