Tool and method for quickly aligning circle center of split casing

Abstract

The invention provides a tool for quickly aligning the circle center of a split casing. The tool comprises a base provided with a plurality of holes and grooves and a semi-cylindrical part equally divided into two blocks. The joint of the two parts is a joint surface; a positioning hole is formed in the joint surface of the part; the device is characterized by comprising a positioning block I, a positioning block II and a bolt, the first positioning block and the second positioning block are symmetrically installed in a groove in the base. The front side surface of the positioning block I is a reference surface I, and the left side surface is an X-direction positioning surface; the front side surface of the positioning block II is a reference surface II; the first reference surface and the second reference surface are the same plane; the bolt is mounted in a positioning hole in the part and clings to the X-direction positioning surface of the positioning block I; the clamping device is simple in structure and capable of rapidly and accurately positioning and clamping.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a tool and a method for quickly aligning the center of a split casing. Background Art

[0002] To facilitate the installation of the engine main shaft, the casing is divided into two halves. This structure reduces the difficulty of assembly but increases the difficulty of parts processing. It is necessary to ensure that the mating surfaces of the parts pass through the center of the circle each time they are clamped. Currently, there is a lack of clamping tools and methods. Summary of the invention

[0003] In view of the above problems, an object of the present invention is to provide a tool for quickly clamping semi-cylindrical parts.

[0004] The present invention is achieved through the following technical solutions: A tool for quickly aligning the center of a circle when splitting a receiver, comprising: a base provided with a plurality of holes and grooves and a semi-cylindrical part divided into two equal parts; the junction of the two parts is a junction surface; the junction surface of the part is provided with a positioning hole; further comprising a positioning block 1, a positioning block 2 and a latch; the positioning block 1 and the positioning block 2 are symmetrically mounted in the groove on the base; the front side surface of the positioning block 1 is a reference surface 1, and the left side surface is an X-direction positioning surface; the front side surface of the positioning block 2 is a reference surface 2; the reference surface 1 and the reference surface 2 are in the same plane; the latch is mounted in the positioning hole on the part and is tightly attached to the X-direction positioning surface of the positioning block 1; the base is disc-shaped; the middle part of the base is hollow; the positioning block 1 and the positioning block 2 are both L-shaped.

[0005] A method for quickly finding the center of a circle when splitting a casing comprises the following steps: a. Install positioning block 1 and positioning block 2 on the base. Positioning block 1 and positioning block 2 are positioned in the Y-axis direction by the groove of the base. The reference surface 1 of positioning block 1 and the reference surface 2 of positioning block 2 are coplanar and pass through the center of the base; b. Locate the center distance of the two halves of the part and take the median value P. Install a round bar with a diameter of D on the machine tool spindle and move the spindle to the X coordinate. Calculate the machine tool coordinate: X = (PD) / 2, where D is the diameter of the round bar. c. Place the X-direction positioning surface of positioning block 1 close to the round bar, and tighten the screws to fix positioning block 1; d. Insert the pin into the locating hole on the mating surface of half of the part close to the locating block 1, and make the pin fit tightly against the ×-direction locating surface of the locating block 1; the mating surface of the part fits tightly against the reference surface 1 and the reference surface 2, and the part is fixed with several pressing plates. Remove the locating blocks 1, 2 and the pin, and install the other half of the part. The mating surfaces of the parts fit tightly, and the other half of the part is fixed with several pressing plates.

[0006] Beneficial effects of the present invention: The invention has a simple structure and can be positioned and clamped quickly and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention is further described in detail below with reference to the accompanying drawings.

[0008] Figure 1 It is a structural schematic diagram of the present invention.

[0009] Figure 2 It is a top view of the present invention.

[0010] As shown in the figure: 1-positioning block one; 2-positioning block two; 3-latch pin; 4-base; 5-part; A1-reference surface one; A2-reference surface two; A3-× positioning surface; A4-joint surface. DETAILED DESCRIPTION

[0011] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0012] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0013] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. It should be noted that the terms "include", "comprise" or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0014] like Figure 1, Figure 2 The tooling shown is used for quickly aligning the center of a split receiver, and comprises: a positioning block 1, a positioning block 2, a latch 3, a base 4, and a part 5.

[0015] The base 4 is provided with a plurality of holes and grooves. The base 4 is disc-shaped, and the middle portion of the base 4 is hollow.

[0016] The part 5 is a semi-cylindrical part divided into two equal parts; the junction of the two parts 5 is a junction surface A4; and a positioning hole is provided on the junction surface A4 of the part 5; The positioning block 1 and the positioning block 2 are symmetrically installed in the groove on the base 4; the front side of the positioning block 1 is the reference surface A1, and the left side is the X-direction positioning surface A3; the front side of the positioning block 2 is the reference surface A2; the reference surface A1 and the reference surface A2 are in the same plane; the positioning block 1 and the positioning block 2 are both L-shaped.

[0017] The pin 3 only needs to be inserted into one of the positioning holes of the part 5. If the pins 3 are inserted into the positioning holes on both sides of the part 5, it will cause repeated positioning and waste work time. Therefore, the pin 3 is installed in the positioning hole close to the positioning block 1 on the part 5 and is close to the X-direction positioning surface A3 of the positioning block 1.

[0018] A method for quickly finding the center of a circle when splitting a casing comprises the following steps: a. Install positioning block 1 and positioning block 2 on base 4. Positioning block 1 and positioning block 2 are positioned in the Y-axis direction by the holes of base 4. Reference surface A1 of positioning block 1 and reference surface A2 of positioning block 2 are coplanar and pass through the center of base 4. b. Locate the center distance of the two halves of part 5 and take the median value P. Install a round bar with a diameter of D on the machine tool spindle and move the spindle to the X coordinate. Calculate the machine tool coordinate: X= (PD) / 2, where D is the diameter of the round bar. c. Place the X-direction positioning surface A3 of the positioning block 1 close to the round bar, and tighten the screws to fix the positioning block 1; d. Insert the pin 3 into the positioning hole on the joint surface A4 of half part 5 close to the positioning block 1, and make the pin 3 fit tightly against the ×-direction positioning surface A3 of the positioning block 1; the joint surface A4 of part 5 fits tightly against the reference surface A1 and the reference surface A2, and fix part 5 with several pressing plates. Remove the positioning blocks 1, 2 and the pin 3, and install the other half of part 5. The joint surface A4 of part 5 fits tightly, and fix the other half of part 5 with several pressing plates.

[0019] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A tool for quickly aligning the center of a split receiver, comprising: A base (4) provided with a plurality of holes and grooves and a semi-cylindrical part (5) divided into two equal parts; the junction of the two parts (5) is a junction surface (A4); a positioning hole is provided on the junction surface (A4) of the part (5); the characteristics include: comprising a positioning block 1 (1), a positioning block 2 (2) and a latch (3); the positioning block 1 (1) and the positioning block 2 (2) are symmetrically mounted in the groove on the base (4); the front side surface of the positioning block 1 (1) is a reference surface 1 (A1), and the left side surface is a x-direction positioning surface (A3); the front side surface of the positioning block 2 (2) is a reference surface 2 (A2); the reference surface 1 (A1) and the reference surface 2 (A2) are in the same plane; the latch (3) is mounted in the positioning hole on the part (5) and is tightly attached to the x-direction positioning surface (A3) of the positioning block 1 (1).

2. A tool and method for quickly aligning the center of a split casing according to claim 1, characterized in that: The base (4) is disc-shaped.

3. A tool and method for quickly aligning the center of a split casing according to claim 1, characterized in that: The middle part of the base (4) is hollow.

4. A tool and method for quickly aligning the center of a split casing according to claim 1, characterized in that: The positioning block 1 (1) and the positioning block 2 (2) are both L-shaped.

5. A method for quickly aligning the center of a split casing according to claim 1, characterized in that: The following steps are involved: a. Install positioning block 1 (1) and positioning block 2 (2) on the base (4). Positioning block 1 (1) and positioning block 2 (2) are positioned in the Y-axis direction by the holes of the base (4). Reference surface 1 (A1) of positioning block 1 and reference surface 2 (A2) of positioning block 2 (2) are coplanar and pass through the center of the base (4); b. Locate the center distance of the two halves of part (5) and take the median value P. Install a round bar with a diameter of D on the machine tool spindle and move the spindle to the X coordinate. Calculate the machine tool coordinate: X = (PD) / 2, where D is the diameter of the round bar. c. Place the X-direction positioning surface (A3) of the positioning block 1 (1) close to the round bar and tighten the screws to fix the positioning block 1 (1); d. Insert the pin (3) into the positioning hole on the joint surface (A4) of the half part (5) close to the positioning block 1 (1), and make the pin (3) fit tightly against the positioning surface (A3) in the X direction of the positioning block 1 (1); make the joint surface (A4) of the part (5) fit tightly against the reference surface 1 (A1) and the reference surface 2 (A2), and fix the part (5) with a plurality of pressing plates. Remove the positioning block 1 (1), the positioning block 2 (2) and the pin (3), and install the other half part (5). Make the joint surface (A4) of the part (5) fit tightly against each other, and fix the other half part (5) with a plurality of pressing plates.

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