A positioning tool for turbine shell press pins

Abstract

The utility model relates to a kind of positioning tool for turbine shell press pin, it include: locating block, lower backing plate, upper backing plate, guide pillar, upper locating nylon block, lower locating nylon block, spring, locating block, lower backing plate, upper backing plate parallel stack, lower backing plate is provided with central through-hole, locating block is provided with central blind hole, spring passes through central through-hole, and one end of spring is on upper backing plate, the other end of spring is in the central blind hole of locating block, spring passes through the central through-hole of lower backing plate to make lower backing plate and upper backing plate normal separation, guide pillar is passed through locating block and lower backing plate, and upper backing plate and lower backing plate are provided with the equal number and the upper backing plate pin hole, lower backing plate pin hole of cooperation and are penetrated, the pin of positioning is passed through upper backing plate pin hole and lower backing plate pin hole.The utility model completes all pin press-in process one time, improves production efficiency.The tool is separated by extended guiding distance through backing plate, increases the stability of pin press-in, improves product quality.

Description

Technical Field

[0001] This utility model relates to a positioning tool, specifically a positioning tool for pressing pins on a turbine housing that can quickly locate all pin hole positions and complete the pressing process of all pins in one go. Background Technology

[0002] Currently, most turbine housing press pins use equal-height block tooling. The height of the equal-height block tooling is equal to the final size of the pin after it is pressed in. This results in a short guide distance and an excessively long exposed length when the pin is not pressed in, causing the pin to fail to meet the required standards after it is pressed in. Utility Model Content

[0003] To address the aforementioned problems, the main objective of this invention is to provide a positioning fixture for pressing pins on turbine housings that can quickly locate all pin hole positions and complete the pressing-in process of all pins in one go.

[0004] This utility model solves the above-mentioned technical problems through the following technical solution: a positioning tool for turbine housing pressure pins, the positioning tool for turbine housing pressure pins includes: a positioning block, a lower pad, an upper pad, a guide post, an upper positioning nylon block, a lower positioning nylon block, and a spring. The positioning block, lower pad, and upper pad are stacked in parallel. The lower pad is provided with a central through hole. The positioning block is provided with a central blind hole. The spring passes through the central through hole, and one end of the spring abuts against the upper pad, while the other end of the spring abuts against the central blind hole of the positioning block. The spring passes through the central through hole of the lower pad, causing the lower pad and the upper pad to be normally separated. A guide post passes through the positioning block and the lower pad. The upper pad and the lower pad are provided with an equal number of through pin holes. The positioning pin passes through the pin holes of the upper pad and the lower pad.

[0005] In a specific embodiment of this utility model, an upper positioning nylon block is provided in the pin hole of the upper pad, and a lower positioning nylon block is provided in the pin hole of the lower pad.

[0006] In a specific embodiment of this utility model, three sets of guide post holes are evenly distributed on the upper and lower pads, and the guide post includes three posts, which pass through the three sets of guide post holes respectively.

[0007] In a specific embodiment of this utility model, the positioning block is fixed to the lower pad using countersunk screws.

[0008] The positive and progressive effects of this utility model are as follows: The positioning fixture for turbine housing pressing pins provided by this utility model has the following advantages: This utility model designs a turbine housing pressing pin positioning fixture based on the processing requirements and characteristics of turbine housing pressing pins. This fixture can quickly locate all pin hole positions and complete the pressing-in process of all pins in one go, improving production efficiency. This fixture increases the guide distance by using a separable pad, increasing the stability of pin pressing and improving product quality; this utility model is easy to assemble and disassemble, effectively improving production efficiency. Attached Figure Description

[0009] Figure 1 A perspective view of this utility model.

[0010] Figure 2 for Figure 1 The main view.

[0011] Figure 3 for Figure 2 Sectional view (AA section).

[0012] Figure 4 for Figure 1 A magnified view of a portion of the image.

[0013] Figure 5 for Figure 4 A sectional view (BB section).

[0014] Figure 6 This is a schematic diagram of the positioning pin used in this utility model.

[0015] The following are the names corresponding to the reference numerals in this utility model:

[0016] In the diagram: Positioning block 1, lower pad 2, upper pad 3, guide post 4, upper positioning nylon block 5, lower positioning nylon block 6, countersunk screw 7, spring 8, pin 9, center blind hole 101, center through hole 202, upper pad pin hole 301, lower pad pin hole 201. Detailed Implementation

[0017] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.

[0018] This utility model relates to a positioning fixture for a turbine housing press pin. The function of this positioning fixture is to position the press pin so that it remains stable during the press-in process and to prevent the press pin from shifting and affecting dimensional accuracy.

[0019] Figure 1 A perspective view of this utility model. Figure 2 for Figure 1 The main view, Figure 3 for Figure 1 The sectional view (AA section), Figure 4for Figure 1 A magnified view of a portion of the image. Figure 5 for Figure 4 A sectional view (BB section), such as Figure 1-5 As shown: This utility model proposes a positioning fixture for turbine housing pressure pins. The fixture includes: a positioning block 1, a lower pad 2, an upper pad 3, a guide post 4, an upper positioning nylon block 5, a lower positioning nylon block 6, a countersunk screw 7, and a spring 8. The positioning block 1, lower pad 2, and upper pad 3 are stacked in parallel. The lower pad 2 has a central through hole 202, and the positioning block 1 has a central blind hole 101. The spring 8 passes through the central through hole 202. One end of the spring 8 rests on the upper pad 3, and the other end of the spring 8 rests in the center blind hole 101 of the positioning block 1. The spring 8 passes through the center through hole 201 of the lower pad 2, causing the lower pad 2 and the upper pad 3 to be normally separated. A guide post 4 passes through the positioning block 1 and the lower pad 2. The upper pad 3 and the lower pad 2 are provided with an equal number of matching and penetrating upper pad pin holes 301 and lower pad pin holes 201. The positioning pin 9 passes through the upper pad pin holes 301 and lower pad pin holes 201.

[0020] In specific implementation, an upper positioning nylon block 5 is provided in the upper pad pin hole 301, and a lower positioning nylon block 6 is provided in the lower pad pin hole 201. Three sets of guide post holes are evenly distributed on the upper pad 3 and lower pad 2, and three guide posts 4 pass through the three sets of guide post holes respectively. The positioning block 1 is fixed to the lower pad 2 using countersunk screws 7.

[0021] This utility model uses three guide posts 4 to connect the lower pad 2 and the upper pad 3 to ensure its positioning direction and structural stability. The positioning block 1 is locked onto the lower pad 2 with countersunk screws. The spring 8 is placed in the circular groove in the center of the positioning block 1 and the upper pad 3, and passes through the central circular hole of the lower pad 2 to keep it normally separated from the upper pad 3. The upper positioning nylon block 5 and the lower positioning nylon block 6 are respectively tightly fitted into the nine holes around the upper pad 3 and the lower pad 2 to prevent the pin from being scratched when pressing the pin.

[0022] Place the turbine housing on the hydraulic fixture, place the positioning fixture inside the turbine housing, insert the pin to be pressed into the positioning nylon block of the positioning fixture, so that the pin 9 is inserted into the pin hole of the turbine housing for rough positioning and alignment, start the hydraulic press to bring the upper pad 3 and the lower pad 2 together to press the pin in, after which the strong spring will separate the upper pad 3 and the lower pad 2. After separation, remove the positioning fixture, and the pin pressing process is completed.

[0023] The purpose of this invention is to position the pressing pin so that it remains stable during the pressing process of the pin 9, and to prevent the pin from shifting during pressing, thus affecting the dimensional accuracy.

[0024] This invention can quickly locate all pin holes and complete the pressing-in process of all pins 9 in one go, improving production efficiency. The tooling uses a detachable pad to extend the guide distance, increasing the stability of pin pressing and improving product quality. This invention is easy to assemble and disassemble, effectively improving production efficiency.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A positioning tool for turbine housing pressure pins, characterized in that: The positioning fixture for the turbine housing pressure pin includes: a positioning block, a lower pad, an upper pad, a guide post, an upper positioning nylon block, a lower positioning nylon block, and a spring. The positioning block, lower pad, and upper pad are stacked in parallel. The lower pad has a central through hole, and the positioning block has a central blind hole. The spring passes through the central through hole, with one end of the spring pressing against the upper pad and the other end pressing against the central blind hole of the positioning block. The spring passes through the central through hole of the lower pad, causing the lower pad and the upper pad to be normally separated. The guide post passes through the positioning block and the lower pad. The upper and lower pads have an equal number of through pin holes, and the positioning pin passes through the pin holes of the upper and lower pads.

2. The positioning fixture for turbine housing pressure pins according to claim 1, characterized in that: An upper positioning nylon block is installed in the pin hole of the upper pad, and a lower positioning nylon block is installed in the pin hole of the lower pad.

3. The positioning fixture for turbine housing pressure pins according to claim 1, characterized in that: Three sets of guide post holes are evenly distributed on the upper and lower pads. There are three guide posts, which pass through the three sets of guide post holes respectively.

4. The positioning fixture for turbine housing pressure pins according to claim 1, characterized in that: The positioning block is fixed to the lower pad plate using countersunk screws.

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