Finish polishing device for cylinder hole

Abstract

The utility model discloses a fine polishing device for a cylinder hole, which relates to the technical field of machining, aims to solve the problem of how to optimize a honing head, and comprises a cylinder, three equilong supporting ribs are integrally arranged on the side wall of the cylinder, the three supporting ribs are arranged in an equilateral triangle shape, and the three supporting ribs are arranged on the side wall of the cylinder. A mounting opening is formed in the end, away from the cylinder, of the supporting rib, a honing stone seat is mounted in the mounting opening, and a fine polishing assembly is mounted on the surface of the side, away from the supporting rib, of the honing stone seat.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of machining, specifically relates to a kind of precision polishing device for cylinder hole. BACKGROUND

[0002] Locking cylinder sleeve is one of important components of mould closing mechanism of two-plate die-casting machine, cylinder hole provides space for reciprocation of piston or plunger, so the requirement for inner hole roughness is relatively high. In the past, it is usually honed and then honed using honing machine to achieve polishing requirement.

[0003] The honing head of traditional honing machine is pentagonal structure, and the honing stone seat is installed in the opening groove of the pentagonal end face, and the oil stone strip is installed in the honing stone seat, and the honing is completed by the contact between the oil stone strip and the inner wall of the part. When mass production, considering that the honing time is relatively long, and the error probability of the diameter formed by the honing head of pentagonal structure is relatively large, if improper operation occurs, the oil stone strip is easy to crack, which may scratch the inner hole wall of the part. Therefore, combined with the existing honing principle, the honing head needs to be optimized and improved to improve the efficiency of the precision hole and the accuracy of the hole diameter. SUMMARY

[0004] To solve the above problems, i.e. how to optimize the honing head, the utility model provides a kind of precision polishing device for cylinder hole, which comprises a cylindrical body, three equal-length supporting ribs are integrally arranged on the side wall of the cylindrical body, the three supporting ribs are arranged in an equilateral triangle, an installation opening is formed at the end of the supporting rib away from the cylindrical body, a honing stone seat is installed in the installation opening, and a precision polishing assembly is installed on the side surface of the honing stone seat away from the supporting rib.

[0005] The utility model further provides that the supporting rib comprises two groups, each group has three supporting ribs, the two groups of supporting ribs are arranged above and below each other and correspond to each other, and a vertical rib is arranged between any two corresponding supporting ribs arranged above and below each other, and the upper edge and the lower edge of the vertical rib are integrally arranged with the two supporting ribs.

[0006] The utility model further provides that a weight-reducing hole is formed in the vertical rib.

[0007] The utility model further provides that a diagonal rib is arranged between any two adjacent supporting ribs, and the two edges of the diagonal rib are integrally arranged with the two supporting ribs.

[0008] The utility model further provides that the edge of the diagonal rib close to the cylindrical body is arranged in an arc shape matching the cylindrical body, and the arc-shaped edge is integrally arranged with the cylindrical body.

[0009] The further setting of the utility model discloses: the fine polishing device includes nylon strip, the nylon strip is installed on the honing stone seat, and the side surface of the nylon strip is provided with sandpaper on the side surface of the honing stone seat away from the honing stone seat.

[0010] The utility model discloses the beneficial effect that:

[0011] The application adopts integrated structure, and the structure is more stable, convenient to use, adopts triangular structure, and the principle of three points forming a circle is processed into shape, and the diameter size precision is higher, and the polishing is completed by cooperation of nylon strip and sandpaper, avoids the risk that the surface of part is scratched when the sand strip is broken. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The structure schematic diagram of the utility model is shown.

[0013] Figure 2 The structure schematic diagram after removing the honing stone seat is shown.

[0014] Figure 3 The state diagram when working is shown.

[0015] Figure 4 The sectional view of A-A direction is shown.

[0016] Fig. 1, cylindrical body; 11, polishing head cone; 12, polishing shaft; 2, support rib; 3, honing stone seat; 4, fine polishing assembly; 41, nylon strip; 42, sandpaper; 5, vertical rib; 51, weight-reducing hole; 6, inclined rib. DETAILED DESCRIPTION

[0017] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0018] The utility model discloses a kind of fine polishing devices for cylinder hole, including cylindrical body 1 of ladder type, cylindrical body 1 is hollowly arranged, its top end is connected with honing machine frame by polishing head cone 11 and polishing shaft 12, three equal-length support ribs 2 are integrally cast on the side wall of cylindrical body 1, and three support ribs 2 are arranged in equilateral triangle, i.e. the included angle of any two adjacent support ribs 2 is 60 degrees.

[0019] The end of support rib 2 away from cylindrical body 1 is provided with mounting port, honing stone seat 3 is installed in mounting port, honing stone seat 3 is fixedly installed in mounting port, and fine polishing assembly 4 is installed on the side surface of honing stone seat 3 away from support rib 2, to be used for fine polishing.

[0020] The support ribs 2 comprise two groups, each group of support ribs 2 is provided with three support ribs 2, the two groups of support ribs 2 are arranged in upper and lower positions and correspond to each other, and a vertical rib 5 is arranged between any two upper and lower corresponding support ribs 2, and the upper edge and the lower edge of the vertical rib 5 are integrally cast with the two support ribs 2 respectively. A weight-reducing hole 51 is formed in the vertical rib 5 to reduce the total mass of the honing head.

[0021] A diagonal rib 6 is further arranged between any two adjacent support ribs 2, the two edges of the diagonal rib 6 are integrally cast with the two support ribs 2 respectively, one edge of the diagonal rib 6 close to the cylindrical body 1 is arranged as an arc-shaped edge, the arc-shaped edge is arranged at the middle position of the diagonal rib 6, the arc-shaped edge is coaxially arranged with the cylindrical body 1, and the arc-shaped edge is integrally cast with the cylindrical body 1.

[0022] The fine polishing device comprises nylon strips 41, the two ends of the honing stone seat 3 are embedded in two corresponding mounting openings respectively and are fixed in the interiors, a mounting groove is formed in the surface of the side of the honing stone seat 3 away from the mounting opening, the nylon strips 41 are fixedly connected in the mounting groove, and the side surface of the nylon strips 41 away from the mounting groove protrudes out of the mounting groove. Sandpaper 42 is adhered to the side surface of the nylon strips 41 protruding out of the mounting groove, in use, the sandpaper 42 is in contact with the hole wall to be polished, thereby realizing fine polishing of the cylinder hole.

[0023] In summary, the utility model adopts an integrated structure, is more stable in structure, and is convenient to use, adopts a triangular structure, and is processed and formed by the principle that three points form a circle, is higher in diameter size precision, and is polished by cooperation of the nylon strips 41 and the sandpaper 42, thereby avoiding the risk that a part surface is scratched due to breakage of a sand strip.

[0024] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made to it and equivalent components can be substituted for the components thereof without departing from the scope of the utility model, and in particular, the technical features mentioned in each embodiment can be combined in any way as long as there is no structural conflict. The utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0025] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In addition, it needs to be explained that, in the description of the utility model, unless another explicit provision and limitation, the term "mount", "link", "connect" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected; can be mechanical connection, also can be electrical connection; can be directly connected, also can pass through the indirect connection of intermediate medium, can be two element internal communication. For the person skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0027] The term "comprising" or any other similar word is intended to encompass a non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements is not limited to those elements, but can include other elements not expressly listed, or also include elements inherent in the process, article, or apparatus / device.

[0028] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but the person skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, the person skilled in the art can make equivalent changes or replacements to the related technical features, and the technical schemes after these changes or replacements will fall within the protection scope of the utility model.

Claims

1. A device for finish polishing of a cylinder bore, characterized by: The utility model provides a kind of honing stone base (3) is installed in the mounting port of the branch rib (2) of the cylindrical body (1), and the honing stone base (3) is installed with the fine polishing subassembly (4) on the side surface of honing stone base (3) away from the branch rib (2).

2. The device for finish polishing of a cylinder bore according to claim 1, characterized by: The branch rib (2) includes two groups, each group is provided with three, and the two groups of branch rib (2) are arranged above and below and correspond to each other, and a vertical rib (5) is arranged between any two corresponding branch ribs (2) arranged above and below, and the upper edge and the lower edge of the vertical rib (5) are integrally arranged with the two branch ribs (2) respectively.

3. The device for finish polishing of a cylinder bore according to claim 2, characterized by: The vertical rib (5) is provided with a weight-reducing hole (51) on the upper edge.

4. The apparatus for finish polishing of a cylinder bore according to claim 1, characterized by: Any two adjacent branch ribs (2) are also provided with a diagonal tension rib (6), and the two edges of the diagonal tension rib (6) are integrally arranged with the two branch ribs (2) respectively.

5. The device for finish polishing of a cylinder bore according to claim 4, characterized by: The edge of the diagonal tension rib (6) close to the cylindrical body (1) is arranged as an arc-shaped edge matched with the cylindrical body (1), and the arc-shaped edge is integrally arranged with the cylindrical body (1).

6. The apparatus for finish polishing of a cylinder bore according to claim 1, characterized by: The fine polishing subassembly includes a nylon strip (41), the nylon strip (41) is installed on the honing stone base (3), and the side surface of the nylon strip (41) away from the honing stone base (3) is provided with sandpaper (42).

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