Fixture for processing inclined hole of cylinder cover

Abstract

The utility model discloses a clamp for processing inclined holes of a cylinder cover, which comprises a bottom plate, two inclined plates are arranged on the upper surface of the bottom plate, a main plate is fixed on the inclined surfaces of the two inclined plates through screws, three equal-height blocks, two pin seats, four fool-proof rods and three oil cylinders are arranged on the main plate, pins and diamond nails are respectively arranged on the two pin seats, and the diamond nails are arranged on the four fool-proof rods. A pressing plate and a pressing block are fixed to the output end of the oil cylinder. According to the utility model, the centering hole is designed on the main board, so that the problem that a bevel product has no centering reference can be well solved; the tool setting reference surface is designed on the main board, so that the tool setting problem can be solved quickly; the positioning pin adopts a split structure, so that the maintenance cost of the clamp can be reduced; the equal-height blocks are arranged to be in a trimming form, so that the problem that filings are stacked on the clamp can be well solved; the pressing plate is designed into a split form, so that the problem that a product is crushed can be well solved; and all oil ways adopt inner oil passages, so that the problem that the clamp collides with the oil pipe due to careless carrying of the clamp can be well solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, in particular to a clamp for machining an inclined hole in a cylinder cover. Background Art

[0002] At present, due to the complex structure of various parts of the cylinder head and high requirements for processing precision, especially for the processing of cylinder head inclined holes, manual clamping is generally performed, and workers are required to mark the center each time, which is inefficient. Moreover, the manual clamping method is not only labor-intensive and demanding for workers, but also cannot achieve mass production. The workers' clamping force is different each time, resulting in unstable clamping and product deformation, which also causes unstable product quality. If it cannot be accurately positioned, defective products are easily produced. In order to solve the above problems, we proposed a clamp for cylinder head inclined hole processing. Utility Model Content

[0003] The purpose of the utility model is to provide a clamp for machining an inclined hole in a cylinder head, so as to solve the existing problems.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The utility model is a fixture for machining oblique holes in a cylinder head, comprising a base plate, two oblique plates being provided on one side of the upper surface of the base plate, the inclined surfaces of the two oblique plates being fixed to a main board by screws, three equal-height blocks being equidistantly provided on the upper surface of the main board, two pin seats being provided on the upper surface of the main board, pins and diamond-shaped pins being respectively installed on the two pin seats, four anti-fouling rods being provided on the upper surface of the main board, three oil cylinders being equidistantly provided on the upper surface of the main board, a pressure plate being fixed to the output end of the oil cylinder, and a pressure block being provided on one side of the pressure plate;

[0006] The main board is provided with a center hole and a tool setting reference surface; the oil circuits of the oil cylinder all adopt internal oil channels.

[0007] In one embodiment, the position of the equal height block is adapted to the pin seat, and the position of the anti-foolproof rod is adapted to the equal height block.

[0008] In one embodiment, the position of the oil cylinder is adapted to the equal height block, and the directions of the three pressing blocks point to the same origin.

[0009] In one embodiment, the four anti-foolproof rods are coarse limiting rods for performing preliminary limiting on the cylinder head.

[0010] In one embodiment, the pin seat cooperates with the pin and the diamond pin to further limit the cylinder head.

[0011] In one embodiment, the contour blocks are configured as cut edges.

[0012] The utility model has the following beneficial effects:

[0013] The utility model is designed with a centering hole on the main board, which can effectively solve the problem of inclined products having no centering reference; the tool setting reference surface is designed on the main board, which can quickly solve the tool setting problem; the positioning pin adopts a split structure, which can reduce the maintenance cost of the fixture; the equal height blocks are set in a cutting form, which can effectively solve the problem of iron cuttings accumulating in the fixture; the pressure plate is designed in a split form, which can effectively solve the problem of product crushing; the oil circuit adopts internal oil channels, which can effectively solve the problem of the fixture damaging the oil pipe due to careless transportation of the fixture.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 The figure is a schematic diagram of the overall structure of a fixture for machining inclined holes in cylinder heads.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Main plate; 2. Inclined plate; 4. Bottom plate; 5. Equal height block; 8. Pin holder; 9. Anti-foolproof rod; 10. Pressing plate; 11. Pressing block; 13. Oil cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] See also Figure 1 As shown, the utility model is a fixture for machining inclined holes in cylinder heads, comprising a base plate 4, two inclined plates 2 being provided on one side of the upper surface of the base plate 4, the inclined surfaces of the two inclined plates 2 being fixed to a main board 1 by screws, three equal-height blocks 5 being equidistantly provided on the upper surface of the main board 1, two pin seats 8 being provided on the upper surface of the main board 1, pins and diamond-shaped pins being mounted on the two pin seats 8, four foolproof rods 9 being provided on the upper surface of the main board 1, three oil cylinders 13 being equidistantly provided on the upper surface of the main board 1, a pressure plate 10 being fixed to the output end of the oil cylinder 13, and a pressure block 11 being provided on one side of the pressure plate 10;

[0023] The main board 1 is provided with a centering hole and a tool setting reference surface. The centering hole can effectively solve the problem that the inclined surface product has no centering reference; the tool setting reference surface can quickly solve the tool setting problem; the oil circuit of the oil cylinder 13 adopts an internal oil channel, which can effectively solve the problem of the oil pipe being damaged by the fixture due to careless transportation of the fixture.

[0024] Among them, the position of the contour block 5 is adapted to the pin seat 8, and the position of the anti-foolproof rod 9 is adapted to the contour block 5.

[0025] The position of the oil cylinder 13 is adapted to the height-equalizing block 5 , and the three pressing blocks 11 are oriented toward the same origin.

[0026] Among them, the four anti-fool rods 9 are rough limiting rods for the purpose of performing preliminary limiting on the cylinder head.

[0027] Among them, the pin seat 8 cooperates with the pin and the diamond pin to further limit the cylinder head.

[0028] Among them, the contour block 5 is set in a cutting form, which can well solve the problem of iron cuttings piling up in the fixture.

[0029] Throughout this specification, references to terms such as "one embodiment," "example," and "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A jig for machining an inclined hole in a cylinder head, comprising a base plate (4), characterized in that: Two inclined plates (2) are provided on one side of the upper surface of the bottom plate (4), and the inclined surfaces of the two inclined plates (2) are fixed with a main board (1) by screws. Three equal-height blocks (5) are equidistantly provided on the circumference of the upper surface of the main board (1), and two pin seats (8) are provided on the upper surface of the main board (1). Pins and diamond pins are respectively installed on the two pin seats (8). Four anti-fool rods (9) are provided on the upper surface of the main board (1), and three oil cylinders (13) are equidistantly provided on the circumference of the upper surface of the main board (1). A pressure plate (10) is fixed to the output end of the oil cylinder (13), and a pressure block (11) is provided on one side of the pressure plate (10); The main board (1) is provided with a center hole and a tool reference surface; the oil circuits of the oil cylinder (13) all adopt internal oil circuits.

2. A jig for machining an inclined hole in a cylinder head according to claim 1, characterized in that: The position of the equal height block (5) is adapted to the pin seat (8), and the position of the foolproof rod (9) is adapted to the equal height block (5).

3. The jig for machining an inclined hole in a cylinder head according to claim 1, characterized in that: The position of the oil cylinder (13) is adapted to the equal height block (5), and the directions of the three pressing blocks (11) point to the same origin.

4. The jig for machining an inclined hole in a cylinder head according to claim 1, characterized in that: The four anti-foolproof rods (9) are coarse limiting rods for initially limiting the cylinder head.

5. The jig for machining an inclined hole in a cylinder head according to claim 1, characterized in that: The pin seat (8) cooperates with the pin and the diamond pin to further limit the cylinder head.

6. The jig for machining an inclined hole in a cylinder head according to claim 1, characterized in that: The contour blocks (5) are arranged in a cutting edge form.

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