Turbine shell bushing hole foolproofing

Abstract

The utility model relates to a kind of foolproof device of turbine shell bushing hole, including mounting plate, turbine shell clamp, laser sensor mounting seat, laser sensor and bushing gauge;Turbine shell clamp and laser sensor mounting seat are fixed on the upper surface of mounting plate, laser sensor is fixed on laser sensor mounting seat;Bush gauge includes bushing hole installation section, bushing step hole installation section, bushing hole end surface contact section and grabbing section connected in order from left to right in sequence, bushing hole installation section, bushing step hole installation section, bushing hole end surface contact section and grabbing section are coaxial connection cylindrical, the diameter of bushing hole installation section is less than the diameter of bushing step hole installation section, the diameter of bushing step hole installation section is less than the diameter of bushing hole end surface contact section.The utility model can quickly and accurately measure whether turbine shell bushing hole meets design size requirement, to avoid unqualified turbine shell to flow out.

Description

Technical Field

[0001] This utility model belongs to the field of turbine housing machining technology, and specifically discloses a foolproof device for turbine housing bushing holes. Background Technology

[0002] When machining turbine housing bushing holes, tool wear and tool replacement significantly impact the dimensions of the machined area. If worn tools are not replaced promptly, tool compensation is not adjusted after tool changes, or incorrect tool changes are not detected in time, defects can result in unusable parts or performance that fails to meet design requirements. After machining the turbine housing bushing holes, they must be coded before delivery to the customer. Delivering defective turbine housings can cause substantial economic losses for the customer. Therefore, there is an urgent need to design a foolproof device for turbine housing bushing holes to ensure that the machining meets design dimensional requirements. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a foolproof device for turbine housing bushing holes.

[0004] According to the technical solution provided by this utility model, the foolproof device for the turbine housing bushing hole includes a mounting plate, a turbine housing clamp, a laser sensor mounting base, and a laser sensor and bushing gauge. A turbine housing clamp and a laser sensor mounting base are fixed on the upper surface of the mounting plate, and a laser sensor is fixed on the laser sensor mounting base. The bushing gauge includes a bushing hole mounting section, a bushing stepped hole mounting section, a bushing hole end face contact section, and a gripping section connected sequentially from left to right. The bushing hole mounting section, the bushing stepped hole mounting section, the bushing hole end face contact section, and the gripping section are all coaxially connected cylindrical sections. The diameter of the bushing hole mounting section is smaller than the diameter of the bushing stepped hole mounting section, and the diameter of the bushing stepped hole mounting section is smaller than the diameter of the bushing hole end face contact section.

[0005] Preferably, the laser sensor mounting base has an oblong adjustment hole, and the mounting plate has a laser sensor mounting base mounting hole. The laser sensor mounting base mounting hole is a threaded hole. Adjusting bolts are installed in the oblong adjustment hole and the laser sensor mounting base mounting hole. The laser sensor mounting base is fixed to the upper surface of the mounting plate by the adjusting bolts.

[0006] As a preferred embodiment, it also includes a base plate, a linear slide rail, a slider, and a drive cylinder; A base plate is provided below the mounting plate. A linear slide rail and a drive cylinder are fixed on the upper surface of the base plate. A slider is slidably mounted on the linear slide rail. The slider is fixed to the lower surface of the mounting plate. The piston rod end of the drive cylinder is fixed to the mounting plate.

[0007] As a preferred option, it also includes a coder holder and a coder; A coder bracket is fixed on the upper surface of the base plate, and a coder is installed on the coder bracket.

[0008] This invention can quickly and accurately determine whether the turbine housing bushing hole meets the design size requirements, thus preventing substandard turbine housings from being discharged. Attached Figure Description

[0009] Figure 1 This is a diagram showing the usage state of this utility model.

[0010] Figure 2 This is an assembly cross-sectional view of the turbine housing and bushing gauge.

[0011] Figure 3 This is a cross-sectional view of the bushing gauge in this utility model.

[0012] Figure 4 This is a cross-sectional view of the turbine casing. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] A foolproof device for turbine housing bushing bores, such as Figure 1 As shown, it includes mounting plate 1, turbine housing clamp 2, laser sensor mounting base 3, laser sensor 4 and bushing gauge 5; A turbine housing clamp 2 and a laser sensor mounting base 3 are fixed on the upper surface of the mounting plate 1, and a laser sensor 4 is fixed on the laser sensor mounting base 3. like Figure 4 As shown, the bushing gauge 5 includes a bushing hole mounting section 5.1, a bushing stepped hole mounting section 5.2, a bushing hole end face contact section 5.3, and a gripping section 5.4 connected sequentially from left to right. The bushing hole mounting section 5.1, the bushing stepped hole mounting section 5.2, the bushing hole end face contact section 5.3, and the gripping section 5.4 are all coaxially connected cylindrical sections. The diameter of the bushing hole mounting section 5.1 is smaller than the diameter of the bushing stepped hole mounting section 5.2, and the diameter of the bushing stepped hole mounting section 5.2 is smaller than the diameter of the bushing hole end face contact section 5.3.

[0015] A waist-shaped adjustment hole 3.1 is provided on the laser sensor mounting base 3, and a laser sensor mounting base mounting hole is provided on the mounting plate 1. The laser sensor mounting base mounting hole is a threaded hole. Adjusting bolts are installed in the waist-shaped adjustment hole 3.1 and the laser sensor mounting base mounting hole. The laser sensor mounting base 3 is fixed to the upper surface of the mounting plate 1 by the adjusting bolts.

[0016] It also includes a base plate 6, a linear guide rail 7, a slider 8, and a drive cylinder 9; A base plate 6 is provided below the mounting plate 1. A linear slide rail 7 and a drive cylinder 9 are fixed on the upper surface of the base plate 6. A slider 8 is slidably mounted on the linear slide rail 7. The slider 8 is fixed to the lower surface of the mounting plate 1. The piston rod end of the drive cylinder 9 is fixed to the mounting plate 1.

[0017] It also includes a coder bracket 10 and a coder 11; A coder bracket 10 is fixed on the upper surface of the base plate 6, and a coder 11 is installed on the coder bracket 10.

[0018] During the machining of the bushing hole of the first turbine housing 20, it is clamped and fixed by several turbine housing jigs 2. A brand-new cutting tool is used to machine the turbine housing bushing hole, which includes a cylindrical section 20.1 and a stepped section 20.2, as shown below. Figure 3 As shown, insert bushing gauge 5 into the turbine housing bushing hole, as follows. Figure 2 As shown. Install the laser sensor 4 onto the laser sensor mounting base 3, and adjust the position of the laser sensor mounting base 3 so that the laser sensor 4 is a certain distance away from the right end face of the bushing gauge 5. This distance is set as the detection distance of the laser sensor 4. For example, the detection distance of the laser sensor 4 can be set to 20mm. Use adjusting bolts to fix the laser sensor mounting base 3 to the mounting plate 1.

[0019] After the bushing hole of the first turbine housing 20 is machined, the mounting plate 1 slides to the marking station under the drive of the drive cylinder 9. The marking device 11 marks the QR code on the support of the turbine housing 20. After the marking is completed, the first turbine housing 20 is removed.

[0020] After the remaining turbine housings 20 are clamped and fixed in sequence by several turbine housing clamps 2, the bushing holes are machined. After the bushing holes are machined, the bushing gauge 5 is manually inserted into the turbine housing bushing hole. The bushing hole mounting section 5.1 is inserted into the cylindrical section 20.1 of the bushing hole, the left end face of the bushing stepped hole mounting section 5.2 is in close contact with the bottom surface of the bushing hole stepped section 20.2, and the left end face of the bushing hole end face contact section 5.3 is in close contact with the right end face of the turbine housing bushing hole.

[0021] When the diameter of the cylindrical section 20.1 of the bushing hole is smaller than the lower tolerance due to two reasons—namely, the tool wear is not replaced in time or the tool compensation is not changed after tool replacement—and the diameter of the stage section 20.2 of the bushing hole is smaller than the lower tolerance due to the same reasons, the bushing gauge 5 cannot be inserted. At this time, the actual distance (i.e., the distance between the laser sensor 4 and the right end face of the bushing gauge 5) is significantly greater than the detection distance of the laser sensor 4, causing the laser sensor 4 to fail. Consequently, the encoder 11 connected in series with the laser sensor 4 cannot engrave the QR code on the support leg 20.3 of the turbine housing 20.

[0022] When the cylindrical section 20.1 of the bushing hole is not penetrated due to two reasons, namely, the tool wear is not replaced in time or the tool compensation is not changed after the tool is replaced, and the depth of the stage 20.2 of the bushing hole is less than the lower tolerance of the design, the actual distance (i.e., the distance between the laser sensor 4 and the right end face of the bushing gauge 5) is less than the detection distance of the laser sensor 4, the laser sensor 4 fails, and the coder 11 cannot engrave.

[0023] When the right end face of the bushing hole is missed due to two reasons, namely changing the wrong tool or forgetting to install the tool, the detection distance (i.e., the distance between the right end face of the laser sensor 4 and the bushing gauge 5) is less than the detection distance of the laser sensor 4, the laser sensor fails, and the coder 11 cannot engrave.

[0024] Only when the diameter of the cylindrical section 20.1 of the bushing hole, the diameter and depth of the stage 20.2 of the bushing hole, and the right end face of the bushing hole are all qualified, and the laser sensor 4 has a signal, can the encoder 11 engrave normally.

[0025] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A foolproof device for a turbine housing bushing hole, comprising a mounting plate (1), a turbine housing clamp (2), a laser sensor mounting base (3), a laser sensor (4), and a bushing gauge (5); Its characteristics are: in The upper surface of the mounting plate (1) is fixed with a turbine housing clamp (2) and a laser sensor mounting base (3), and a laser sensor (4) is fixed on the laser sensor mounting base (3). The bushing gauge (5) includes a bushing hole mounting section (5.1), a bushing stepped hole mounting section (5.2), a bushing hole end face contact section (5.3), and a gripping section (5.4) connected sequentially from left to right. The bushing hole mounting section (5.1), the bushing stepped hole mounting section (5.2), the bushing hole end face contact section (5.3), and the gripping section (5.4) are all coaxially connected cylindrical sections. The diameter of the bushing hole mounting section (5.1) is smaller than the diameter of the bushing stepped hole mounting section (5.2), and the diameter of the bushing stepped hole mounting section (5.2) is smaller than the diameter of the bushing hole end face contact section (5.3).

2. The foolproof device for the turbine housing bushing hole as described in claim 1, characterized in that: in The laser sensor mounting base (3) has an oblong adjustment hole (3.1) and the mounting plate (1) has a laser sensor mounting base mounting hole. The laser sensor mounting base mounting hole is a threaded hole. Adjusting bolts are installed in the oblong adjustment hole (3.1) and the laser sensor mounting base mounting hole. The laser sensor mounting base (3) is fixed to the upper surface of the mounting plate (1) by adjusting bolts.

3. The foolproof device for the turbine housing bushing hole as described in claim 2, characterized in that: It also includes a base plate (6), a linear slide rail (7), a slider (8), and a drive cylinder (9); A base plate (6) is provided below the mounting plate (1). A linear slide rail (7) and a drive cylinder (9) are fixed on the upper surface of the base plate (6). A slider (8) is slidably installed on the linear slide rail (7). The slider (8) is fixed on the lower surface of the mounting plate (1). The piston rod end of the drive cylinder (9) is fixed to the mounting plate (1).

4. The foolproof device for the turbine housing bushing hole as described in claim 3, characterized in that: It also includes a coder bracket (10) and a coder (11). A coder bracket (10) is fixed on the upper surface of the base plate (6), and a coder (11) is installed on the coder bracket (10).

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