Exhaust seat positioning and supporting jig

Abstract

A first positioning plate and a second positioning plate are arranged at the upper end of a bottom plate, openings are formed in the first positioning plate and the second positioning plate, and a supporting plate is arranged on the side, close to the first bottom plate, of the bottom plate and used for supporting one end of an exhaust seat. The first positioning plate is provided with a first pressing assembly used for pressing the exhaust seat on the supporting plate from top to bottom, the positioning assembly comprises a positioning block, an adjusting bolt and a supporting block, the positioning block is arranged on the second positioning plate, the adjusting bolt is arranged on the positioning block, and the supporting block is arranged on the side, close to the opening, of the adjusting bolt. And the plurality of supporting blocks are driven to clamp the other end of the exhaust seat. Precise positioning is carried out through the first positioning plate and the supporting plate, stable installation is carried out through the positioning assembly and the pressing assembly, the two ends of the exhaust base are fixed respectively, it can be guaranteed that the exhaust base is machined in the precise and stable positioning state, and then the machining precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust seat processing devices, in particular to an exhaust seat positioning and supporting fixture. Background Art

[0002] During the machining process of the compressor exhaust seat, it is necessary to use a tool to process the front and rear end faces, or the side walls of the body, so it is necessary to use a tool or a fixture to position and fix it to ensure stability during processing.

[0003] As attached Figure 7 As shown, the exhaust seat 10 has an end face end 10a and a cylindrical end 10b, and both or both have irregular shapes (side walls around the body). When the two end faces need to be machined, the side walls around the body need to be positioned and fixed by a fixture. In the prior art, such as a compressor exhaust seat processing tool with application number 202210684085.4, it is first positioned and then the exhaust seat is clamped from top to bottom by a cylinder. A longitudinally movable plate is provided above the lower positioning device to adjust the space above the lower positioning device to facilitate the installation and positioning of the exhaust seat. However, it is not easy to ensure the stability of the support only by clamping up and down in the middle or in a similar vertical plane, especially as shown in the attached Figure 7 The cylindrical end 10b shown is longer than the end face end 10a. Using only the above-mentioned tooling may cause the center of gravity of the exhaust seat to be unstable, thereby affecting the end face position and causing a decrease in processing accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide an exhaust seat positioning and supporting fixture, which is precisely positioned by a first positioning plate and a supporting plate, stably installed with the help of a positioning assembly and a clamping assembly, so as to fix the two ends of the exhaust seat respectively, and ensure that the exhaust seat is machined in a precise and stable positioning state, thereby ensuring the processing accuracy.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an exhaust seat positioning support fixture, comprising:

[0006] The bottom plate has a first positioning plate and a second positioning plate at its upper end. The first positioning plate and the second positioning plate are both provided with an opening that runs horizontally through the body thereof, and the opening is used for the exhaust seat to extend therein or the cutter head to extend therein.

[0007] A support plate is arranged on one side of the bottom plate close to the first bottom plate for supporting one end of the exhaust seat. The first positioning plate is provided with a first clamping assembly for clamping the exhaust seat on the support plate from top to bottom.

[0008] A plurality of positioning components, the positioning components comprising a positioning block, an adjusting bolt and a supporting block, the positioning block being arranged on the second positioning plate, the adjusting bolt being arranged on the positioning block, the supporting block being arranged on a side of the adjusting bolt close to the opening, and the plurality of supporting blocks being driven to clamp the other end of the exhaust seat.

[0009] As a further optimization, the positioning block is provided with a first threaded hole, and the adjusting bolt is provided with an external thread, which is screwed into the first threaded hole and connected to the supporting block after extending out of the first threaded hole.

[0010] As a further optimization, it also includes a mounting bolt, which has an external thread and an optical axis portion on its side wall, the adjusting bolt is provided with a second threaded hole, the supporting block is provided with a through hole, the mounting bolt is inserted into the through hole and locked in the second threaded hole, and the supporting block is rotatably located on the optical axis portion to enable the supporting block to rotate relative to the adjusting bolt and the mounting bolt.

[0011] As a further optimization, the through hole includes a wide hole and a narrow hole that are connected, and at least a portion of the optical axis is located in the narrow hole.

[0012] As a further optimization, a guide column is provided on the positioning block, and a guide hole matching the guide column is provided on the support block. The restriction of the guide column can prevent the support block from rotating synchronously with the adjusting bolt.

[0013] As a further optimization, a clearance groove is provided on the support block to prevent the installation bolts from affecting the contoured abutment between the support block and the exhaust seat.

[0014] As a further optimization, a plurality of second clamping assemblies are further provided on the first positioning plate, and the second clamping assemblies press the exhaust seat onto the first positioning plate along the axial direction of the exhaust seat to improve the axial installation stability of the exhaust seat.

[0015] As a further optimization, a plurality of support pads are provided on the first positioning plate.

[0016] As a further optimization, a pair of parallel grooves are provided on the base plate, and the first positioning plate and the second positioning plate are respectively embedded in the grooves and locked on the base plate, which can ensure the vertical installation accuracy of the pair of positioning plates.

[0017] As a further optimization, a plurality of reinforcing support plates are provided between the first positioning plate and the second positioning plate to ensure the installation stability between the two.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. Through the first positioning plate and the support plate, accurate positioning is performed, and the positioning assembly and the clamping assembly are used for stable installation, so that the two ends of the exhaust seat can be fixed respectively, which can ensure that the exhaust seat is machined in an accurate and stable positioning state, thereby ensuring the processing accuracy;

[0020] 2. The positioning component can achieve precise abutment with the exhaust seat (through the abutment of the contoured surface), ensuring the accuracy and stability of positioning and improving the positioning and fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model.

[0022] Figure 2 This is a structural diagram of the utility model from another side perspective.

[0023] Figure 3 It is an application schematic diagram of the utility model.

[0024] Figure 4 It is a structural diagram of the positioning component of the utility model.

[0025] Figure 5 It is an exploded view of the positioning component of the utility model.

[0026] Figure 6 It is a cross-sectional view of the support block of the utility model.

[0027] Figure 7 This is a structural diagram of the exhaust seat. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figures 1 to 4 , combined Figure 7As shown, an exhaust seat positioning support fixture includes a base plate 11, a support plate 12 and a positioning assembly 3. The upper end of the base plate 11 is provided with a first positioning plate 13 and a second positioning plate 14. The first positioning plate 13 and the second positioning plate 14 are both provided with openings that horizontally penetrate their bodies, that is, the first positioning plate 13 is provided with a first opening 101, and the second positioning plate 14 is provided with a second opening 102. The first opening 101 and the second opening 102 are used for the exhaust seat 10 to extend into the fixture, or for the tool head for processing the exhaust seat 10 to extend into the fixture. The support plate 12 is arranged on the base plate 11 The side close to the first positioning plate 13 is used to support one end of the exhaust seat 10. The first positioning plate 13 is provided with a first clamping assembly 2 for clamping the exhaust seat 10 on the support plate 12 from top to bottom. The positioning assembly 3 has multiple, including a positioning block 31, an adjusting bolt 32 and a supporting block 33. The positioning block 31 is arranged on the second positioning plate 14, the adjusting bolt 32 is arranged on the positioning block 31, and the supporting block 33 is arranged on the side of the adjusting bolt 32 close to the second opening 102. The multiple supporting blocks 33 are driven to clamp one end of the exhaust seat 10 close to the second positioning plate 14.

[0030] In the present invention, the cylindrical end 10b on the exhaust seat 10 is extended into the fixture from the first opening 101 on the first positioning plate 13, so that the cylindrical end 10b is located in the fixture and close to the second opening 102 of the second positioning plate 14, and the end surface end 10a on the exhaust seat 10 is close to the first opening 101 of the first positioning plate 13, and the side of the end surface end 10a close to the cylindrical end 10b is abutted against the first positioning plate 13, and the lower end of the end surface end 10a is abutted against the contoured support surface 120 of the support plate 12 and supported, and the first clamping assembly is used to hold the exhaust seat 10 in place. The end face end 10a is pressed downward to position and fix one end of the exhaust seat 10. For the cylindrical end 10b, the adjusting bolt 32 is rotated to relatively move on the positioning block 31 to drive the support block 33 to move and abut against the cylindrical end 10b. Under the action of multiple positioning components 31, the cylindrical end 10b is pressed together from multiple directions to position and fix the other end of the exhaust seat 10, thereby completing the fixing of the entire exhaust seat 10 on the first positioning plate 13 and the second positioning plate 14, so that the exhaust seat 10 can be machined in a stable state to ensure the machining accuracy.

[0031] The utility model can position the two ends of the exhaust seat 10 respectively to ensure that the two ends are stably fixed, and accurate positioning can be achieved by relying on the first positioning plate 13 and the support plate 12, which can ensure that the exhaust seat 10 is machined in a precise and stable positioning state, thereby ensuring the processing accuracy.

[0032] Combination Figure 5 and Figure 6As shown, the positioning block 31 is locked on the second positioning plate 14 by a bolt that passes through the second positioning plate 14 and extends into the mounting hole 3101. There are two mounting holes 3101, which can prevent the positioning block 31 from rotating relative to the second positioning plate 14 after installation. The positioning block 31 is provided with a first threaded hole 3102, and the adjusting bolt 32 is provided with an external thread. It is screwed into the first threaded hole 3102 and extends out of the first threaded hole 3102 to connect with the support block 33. Therefore, by rotating the adjusting bolt 32, the support block 33 can be driven to move and then abut against the cylindrical end 10b; if the end of the adjusting bolt 32 is fixedly connected to the support block 33, when the adjusting bolt 32 rotates, the support block 33 also rotates. The side of the support block 33 away from the adjusting bolt 32 needs to be designed as an arc surface or a spherical surface to facilitate the abutment with the arc surface side wall of the cylindrical end 10b, and the abutment form is preferably point contact.

[0033] In another embodiment of the utility model, in order to realize that the support block 33 can make surface contact with the curved side wall of the cylindrical end 10b to ensure the abutment effect and the positioning effect, a contoured abutment surface 330 is provided on the support block 33, and a mounting bolt 34 is also provided, which has an external thread and an optical axis portion on the side wall thereof, a second threaded hole 3201 is provided on the adjusting bolt 32, and a through hole 3301 is provided on the support block 33. After the mounting bolt 34 is inserted into the through hole 3301, it is locked in the second threaded hole 3201, and the support block 33 is rotatably located on the optical axis portion of the mounting bolt 34. In this way, the support block 33 is not fixed to the end of the adjusting bolt 32, and it is set on the adjusting bolt 32 by the mounting bolt 34 locked on the adjusting bolt 32. Since the support block 33 is not locked on the adjusting bolt 32, it can rotate relative to the adjusting bolt 32, that is, it can ensure that the contoured abutment surface 330 it has can always correctly abut against the curved side wall of the cylindrical end 10b, thereby improving the support stability or the clamping stability.

[0034] In order to ensure that the support block 33 can rotate relative to the adjusting bolt 32 and the mounting bolt 34, the through hole 3301 it has includes a wide hole 3301a and a narrow hole 3301b that are connected. The optical axis portion of the mounting bolt 34 is located in the narrow hole 3301b, and the support block 33 can rotate around the mounting bolt 34 through the cooperation between the optical axis portion and the narrow hole 3301b; of course, the mounting bolt 34 does not have to press the support block 33, and the support block 33 can rotate and move axially relative to the adjusting bolt 32 and the mounting bolt 34, and the support block 33 can be moved along the central axis by the pushing of the adjusting bolt 32 and the driving of the end of the mounting bolt 34.

[0035] In addition, a guide column 311 may be provided on the positioning block 31, and a guide hole 3302 matching the guide column 311 may be provided on the support block 33. The cooperation between the guide column 311 and the guide hole 3302 ensures that the support block 33 will not rotate with the adjusting bolt 32 when it is rotated.

[0036] The support block 33 is provided with a clearance groove 3300 for the installation bolt 34 to extend therein, so as to avoid affecting the contact between the contoured contact surface 330 and the arc surface side wall of the cylindrical end 10b.

[0037] For example Figure 1 As shown, a plurality of second clamping assemblies 4 are also provided on the first positioning plate 13, and the second clamping assemblies 4 press the exhaust seat 10 onto the first positioning plate 13 along the axial direction of the exhaust seat 10, so as to ensure the stable positioning of the exhaust seat 10 in the axial direction; the second clamping assembly 4 and the first clamping assembly 2 can have the same structure, that is, they include bolts that can adjust the relative position on the first positioning plate 13, and a pressure plate (pressure head) connected to the bolts, and the pressure plate (pressure head) is pressed against the end face end 10a by adjusting the bolts.

[0038] In addition, a plurality of support pads 131 may be provided on the first positioning plate 13 to support the side wall of the end surface end 10 a to prevent the exhaust seat 10 from being damaged.

[0039] A pair of parallel grooves 110 are provided on the base plate 11, and the first positioning plate 13 and the second positioning plate 14 are respectively embedded in the grooves 110 and locked on the base plate 11, which can ensure the accuracy of the vertical installation of the two; and a plurality of reinforcing support plates 15 are provided between the first positioning plate 13 and the second positioning plate 14 to ensure the stability of the entire supporting part.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An exhaust seat positioning and supporting fixture, characterized in that: include: The bottom plate has a first positioning plate and a second positioning plate at its upper end. The first positioning plate and the second positioning plate are both provided with an opening that runs horizontally through the body thereof, and the opening is used for the exhaust seat to extend therein or the cutter head to extend therein. A support plate is arranged on one side of the bottom plate close to the first positioning plate for supporting one end of the exhaust seat. The first positioning plate is provided with a first clamping assembly for clamping the exhaust seat on the support plate from top to bottom. A plurality of positioning components, the positioning components comprising a positioning block, an adjusting bolt and a supporting block, the positioning block being arranged on the second positioning plate, the adjusting bolt being arranged on the positioning block, the supporting block being arranged on a side of the adjusting bolt close to the opening, and the plurality of supporting blocks being driven to clamp the other end of the exhaust seat.

2. The exhaust seat positioning and supporting fixture according to claim 1, characterized in that: The positioning block is provided with a first threaded hole, and the adjusting bolt is provided with an external thread, which is screwed into the first threaded hole and connected to the supporting block after extending out of the first threaded hole.

3. The exhaust seat positioning and supporting fixture according to claim 2, characterized in that: It also includes a mounting bolt, which has an external thread and an optical axis portion on its side wall, a second threaded hole is provided on the adjusting bolt, and a through hole is provided on the support block. The mounting bolt is inserted into the through hole and locked in the second threaded hole, and the support block is rotatably located on the optical axis portion.

4. The exhaust seat positioning and supporting fixture according to claim 3, characterized in that: The through hole includes a wide hole and a narrow hole that are connected to each other, and at least a part of the optical axis is located in the narrow hole.

5. The exhaust seat positioning and supporting fixture according to claim 3 or 4, characterized in that: The positioning block is provided with a guide column, and the supporting block is provided with a guide hole matching the guide column.

6. The exhaust seat positioning and supporting fixture according to claim 3 or 4, characterized in that: The support block is provided with a giving way groove.

7. The exhaust seat positioning and supporting fixture according to claim 1, characterized in that: The first positioning plate is also provided with a plurality of second clamping assemblies, and the second clamping assemblies press the exhaust seat onto the first positioning plate along the axial direction of the exhaust seat.

8. The exhaust seat positioning and supporting fixture according to claim 1 or 7, characterized in that: A plurality of support pads are disposed on the first positioning plate.

9. The exhaust seat positioning and supporting fixture according to claim 1, characterized in that: The bottom plate is provided with a pair of parallel grooves, and the first positioning plate and the second positioning plate are respectively embedded in the grooves and locked on the bottom plate.

10. The exhaust seat positioning and supporting fixture according to claim 1 or 9, characterized in that: A plurality of reinforcing support plates are provided between the first positioning plate and the second positioning plate.

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