TWI421413B - Method for manufacturing a piston of a compressor - Google Patents

Description

Compressor piston manufacturing method

The present invention relates to a method of manufacturing a piston of a compressor, and more particularly to a method of manufacturing a piston of a compressor which has the function of resisting wear and at the same time reducing the manufacturing cost.

Please refer to the first figure, which is the existing piston (1) structure; the two ends of the piston (1) have a convex ring portion (12) slightly protruding from the peripheral wall (11), and the piston (1) After being installed in the compressor, the convex ring portion (12) is in close contact with the inner cylinder wall of the compressor, so that when the piston reciprocates in the cylinder body, the compressed gas can be surely achieved. .

In order to avoid the wear of the convex ring portion (12) which is in contact with the inner wall of the cylinder when the piston (1) reciprocates in the cylinder body, the manufacturer will use the piston (1) when manufacturing the piston (1). 1) After the Teflon treatment, the frictional resistance between the convex ring portion (12) and the inner wall of the cylinder is lowered.

However, since the two convex ring portions (12) and the piston are integral monolithic structures, the manufacturer impregnates the entire piston (1) in the Teflon solution when performing the Teflon treatment on the piston (1). In the middle, the entire surface is covered with a layer of Teflon, but in fact, the contact with the inner wall of the cylinder is only the convex ring portion (12), so it is useless to impregnate the other parts of the piston (1) with Teflon. Design not only increases costs but also wastes resources.

Nowadays, the inventor is in the light of the lack of practical implementation of the existing pistons mentioned above. It is a tireless spirit and is improved by its rich professional knowledge and years of practical experience. This research has created the present invention.

The main purpose of the method for manufacturing a piston of the compressor of the present invention is to provide a piston member that is disassembled into a piston body and an annular member disposed at both ends of the piston body, to separately perform a Teflon coating operation on the ring member. The piston has a function of resisting wear and has a piston manufacturing method that reduces the manufacturing cost.

The purpose and function of the piston manufacturing method of the compressor of the present invention is achieved by the following techniques: firstly selecting appropriate materials and respectively forming the materials into separate components of the piston body and the ring member, followed by the ring members The surface is covered with Teflon, and finally the ring element is fixed to the two ends of the piston body.

For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, the following is a detailed description, and please refer to the drawings and drawings: First, please refer to 2 and 3 are flow charts showing a method of manufacturing a piston of a compressor of the present invention.

The piston manufacturing method of the present invention mainly replaces the conventional integrally formed piston (1) with a piston body (21) and two annular elements (22) located at the two ends of the piston body (21), respectively, and finally Further combined into a complete piston (2); the method of manufacturing the piston (2) of the present invention will be further described in detail below.

The manufacturing process of the piston (2) of the present invention is as follows [as shown in the second figure, and also refers to the fourth, sixth, and eighth figures]: (a1) select materials, respectively, and select the piston body (21). Round bar material of material and ring element (22); (b1) forming the piston body (21), forming the selected material into a piston body (21) by forging processing; (c1) forming the annular member (22), and cutting the round bar material of the annular member (22) Cut into a suitable length for easy processing, and apply a roller program on the surface of the round bar material to roughen the surface of the round bar material to facilitate the adhesion of Teflon, and coat the surface of the round bar material with iron Fluorine, and the round bar material is cut to a desired size, and the forming sleeves (221), (224) are machined to form the ring member (22); (d1) the piston body (21) is assembled And an annular element (22), each of which is fixed at an end of the piston body (21) to fix an annular element (22), and the ring element (22) is covered with a surface of the Teflon to be ground to make the surface smooth. Finally, the finishing process of the burrs of the joint faces is performed, thus forming the structure of the piston (2) of the present invention.

The flow of the two manufacturing steps of the piston (2) of the present invention is as shown in the third figure, and also refers to the fourth, sixth, and eighth figures: (a2) select materials, and respectively select the piston body (21). a round bar material of the material and the ring member (22); (b2) a Teflon coating, the round bar material to be formed into the ring member (22) is cut to an appropriate length for processing, and a roller is applied to the surface thereof. a flower program to roughen the surface of the round bar material, coating the surface of the round bar material with Teflon; (c2) forming the ring element (22), cutting the aforementioned round bar material into a desired size Forming the sleeve parts (221), (224) to form the ring element (22); (d2) forming the piston body (21), and forming the selected material into a piston body by forging processing (21) ); (e2) fixing the piston body (21) and the ring member (22), respectively arranging and fixing a ring member (22) at both ends of the piston body (21), and covering the ring member (22) with Teflon The surface is ground to smooth the surface and finally trimmed by the burrs of the joint surface, thus forming the piston (2) structure of the present invention.

For the manner in which the ring member (22) and the piston body (21) are combined, reference may be made to the fourth to eighth figures.

The fourth and fifth figures show that the piston body (21) has a protruding insertion portion (211) at each end, and a through hole (212) is disposed at the center of the insertion portion (211). On the ring member (22), a recessed sleeve portion (221) is provided with respect to the nesting portion (211) of the piston body (21), and a through hole is provided at the center of the sleeve portion (221). (222), after the fixing member (23) passes through the through hole (222) of the ring member (22) and the through hole (212) of the piston body (21), the two ring members (22) are respectively fixed and fixed. At the two ends of the piston body (21).

The sixth and seventh figures show that the piston body (21) has a protruding sleeve portion (213) at each end, and the sleeve member (22) is opposite to the sleeve portion of the piston body (21). 213) A through hole (223) is provided, and after the sleeve hole (223) of the ring member (22) is sleeved on the sleeve portion (213) of the piston body (21), the sleeve portion (213) is inserted. The end is stamped and deformed to fix the two ring members (22) to the two ends of the piston body (21).

The eighth figure shows that the piston body (21) has a protruding first insertion portion (214) at each end thereof, and a convex and smaller diameter second portion is disposed at the center of the first insertion portion (214). a nesting portion (215), and a recessed portion is formed on the annular member (22) with respect to the first nesting portion (214) of the piston body (21) a sleeve portion (224), and a through hole (225) corresponding to the second nesting portion (215) is disposed at a center of the sleeve portion (224), and the two ring members (22) are sleeved on the piston body The two ends of (21), and the sleeve portion (224) of the ring member (22) is sleeved behind the first nesting portion (214) of the piston body (21), and the second nesting portion of the piston body (21) ( 215) penetrating the through hole (225) of the ring member (22), and finally stamping and deforming the end of the second nesting portion (215) to respectively fix the two ring members (22) to the piston body (21) Two ends.

Furthermore, the coating operation of the ring element (22) for Teflon may be carried out by means of impregnation or spraying.

Through the above description, it can be seen that the piston manufacturing method of the compressor of the present invention is to disassemble the entire piston (2) into a piston body (21) not in contact with the inner wall of the cylinder and at both ends of the piston body (21). The annular element (22) which is in contact with the inner wall of the cylinder, and only the two annular elements (22) which are in contact with the inner wall of the cylinder are subjected to the coating operation of the Teflon, so that it can not only reduce the cost of covering the Teflon At the same time, it can also reduce the waste of Teflon.

In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the provisions of the Patent Law. And the request, the application for the invention of a patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

<existing>

(1) ‧‧‧Pistons

(11) ‧ ‧ week wall

(12) ‧ ‧ convex ring

<present invention>

(2) ‧‧‧Pistons

(21)‧‧‧Piston body

(211)‧‧‧Inclusion Department

(212) ‧‧‧through holes

(213) ‧‧‧Inclusion Department

(214) ‧‧‧First set-in department

(215) ‧‧‧Second Division

(22)‧‧‧Ring components

(221) ‧ ‧ Included

(222)‧‧‧With holes

(223) ‧‧‧ Set of holes

(224) ‧ ‧ Included

(23)‧‧‧Fixed parts

(a1)‧‧‧Select material

(b1)‧‧‧Formed piston body

(c1)‧‧‧ Forming ring elements

(d1)‧‧‧Assemble the piston body and ring element

(a2)‧‧‧Select material

(b2)‧‧‧Teflon drape

(c2) ‧‧‧ Forming ring elements

(d2)‧‧‧Formed piston body

(e2)‧‧‧Fixed piston body and ring element

(225)‧‧‧With holes

The first picture: the existing piston structure diagram

Second drawing: a manufacturing flow chart of the piston of the present invention

Third drawing: the second manufacturing flow chart of the piston of the present invention

Fourth figure: a perspective view of a fixed manner of the piston body and the ring member of the piston of the present invention

Figure 5 is a cross-sectional view showing a fixing manner of the piston body and the ring member of the piston of the present invention

Figure 6 is a perspective view showing the two fixing modes of the piston body and the ring member of the piston of the present invention.

Figure 7 is a cross-sectional view showing the two fixing modes of the piston body and the ring member of the piston of the present invention.

Figure 8: The piston body and the ring element of the piston of the present invention are three solid Sectional view

(a1). . . Selection material

(b1). . . Forming piston body

(c1). . . Forming ring element

(d1). . . Assembling the piston body and the ring element

Claims (8)

The utility model relates to a piston manufacturing method of a compressor, which mainly comprises: converting a conventional integrally formed piston into a piston body and two ring elements located at two ends of the piston body, and finally combining them into a complete piston; wherein The steps of the processing are as follows: (a) selecting materials for forming the piston body and the ring member respectively; (b) forming the selected materials into the piston body and the ring member, respectively, so that the piston body has a convex end at each end thereof. The insertion portion is provided with a through hole at the center of the nesting portion, and the annular member is provided with a concave fitting portion opposite to the nesting portion, and a through hole is formed in the center of the sleeve portion, and is fixed by a fixing portion Passing the through hole and the through hole to fix the ring member at the end of the piston body; (c) covering the surface of the ring member with Teflon; (d) at each end of the piston body The configuration fixes a ring element. The utility model relates to a piston manufacturing method of a compressor, which mainly comprises: converting a conventional integrally formed piston into a piston body and two ring elements located at two ends of the piston body, and finally combining them into a complete piston; wherein The steps of the processing are as follows: (a) separately selecting materials for forming the piston body and the ring member; (b) coating the surface of the material to be made into the ring member with Teflon; (c) separately selecting the materials to be used Forming a piston body and a ring member, wherein the piston body has a protruding sleeve portion at each end thereof, and a through hole is disposed at a center of the sleeve portion, and the ring member is provided with a concave sleeve opposite to the sleeve portion a fitting hole is formed in a center of the fitting portion, and the fixing hole passes through the through hole and the through hole through a fixing member, An annular member is fixed to an end of the piston body; (d) each of the two ends of the piston body is configured to fix an annular member. The utility model relates to a piston manufacturing method of a compressor, which mainly comprises: converting a conventional integrally formed piston into a piston body and two ring elements located at two ends of the piston body, and finally combining them into a complete piston; wherein The steps of the processing are as follows: (a) selecting materials for forming the piston body and the ring member respectively; (b) forming the selected materials into the piston body and the ring member, respectively, so that the piston body has a convex end at each end thereof. a nesting portion, the ring member is provided with a through hole for the insertion portion; (c) the surface of the ring member is covered with Teflon; (d) a ring is disposed at each of the two ends of the piston body. The component is punched and sleeved on the sleeve portion of the piston body by the sleeve hole of the ring member, and then the end of the sleeve portion is stamped and deformed, and the ring member is fixed at the end of the piston body. The utility model relates to a piston manufacturing method of a compressor, which mainly comprises: converting a conventional integrally formed piston into a piston body and two ring elements located at two ends of the piston body, and finally combining them into a complete piston; wherein The steps of the processing are as follows: (a) separately selecting materials for forming the piston body and the ring member; (b) coating the surface of the material to be made into the ring member with Teflon; (c) separately selecting the materials to be used Forming a piston body and a ring member, wherein the piston body has a protruding sleeve portion at each end thereof, and the ring member is provided with a through hole through the sleeve portion; (d) at each end of the piston body Disposing and fixing a ring-shaped component; wearing a sleeve hole of the ring component through the sleeve of the piston body Thereafter, the end of the nesting portion is stamped and deformed, and the ring member is fixed to the end of the piston body. The utility model relates to a piston manufacturing method of a compressor, which mainly comprises: converting a conventional integrally formed piston into a piston body and two ring elements located at two ends of the piston body, and finally combining them into a complete piston; wherein The steps of the processing are as follows: (a) selecting materials for forming the piston body and the ring member respectively; (b) forming the selected materials into the piston body and the ring member, respectively, so that the piston body has a convex end at each end thereof. a first nesting portion, a second nesting portion having a protruding and smaller diameter is disposed at a center of the first nesting portion, and the annular member is provided with a concave fitting portion relative to the first nesting portion, the sleeve The center of the joint is provided with a through hole corresponding to the second nesting portion; (c) the surface of the ring member is covered with Teflon; (d) each of the two ends of the piston body is fixed with a ring member; The sleeve portion of the ring member is sleeved on the first nesting portion of the piston body, the second nesting portion of the piston body is inserted through the through hole of the ring member, and the end of the second nesting portion is stamped and deformed, and the ring is formed The component is fixed to the piston An end portion thereof. The utility model relates to a piston manufacturing method of a compressor, which mainly comprises: converting a conventional integrally formed piston into a piston body and two ring elements located at two ends of the piston body, and finally combining them into a complete piston; wherein The steps of the processing are as follows: (a) separately selecting materials for forming the piston body and the ring member; (b) coating the surface of the material to be made into the ring member with Teflon; (c) separately selecting the materials to be used Making the piston body and the ring element, Each of the two ends of the piston body has a convex first insertion portion, and a second insertion portion of the protruding portion and a smaller diameter is disposed at a center of the first insertion portion, and the annular member is provided with a second insertion portion opposite to the first insertion portion a recessed sleeve, the center of the sleeve is provided with a through hole corresponding to the second nesting portion; (d) each of the two ends of the piston body is fixedly fixed with a ring member; The fitting portion is sleeved on the first insertion portion of the piston body, the second insertion portion of the piston body is inserted through the through hole of the ring member, and the end of the second nesting portion is stamped and deformed, and the ring member is fixed to the piston The end of the body. The method of manufacturing a piston of a compressor according to any one of claims 1 to 6, wherein the covering operation of the ring member is achieved by impregnation. The method for manufacturing a piston of a compressor according to any one of claims 1 to 6, wherein the coating operation of the ring member is achieved by spraying.