Auxiliary device for boring and milling of pneumatic parts of centrifugal compressor

Abstract

The utility model discloses an auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor, belonging to the technical field of mechanical processing, comprising a support plate, the support plate is vertically arranged on a base, a through hole is opened on the support plate, a combined hanging plate is sleeved in the through hole; the combined hanging plate is detachable and spliced; a plurality of pressure plate assemblies are arranged on one side of the support plate, and the plurality of pressure plate assemblies are uniformly distributed circumferentially with the through hole axis as the center; the pressure plate assemblies are installed on a contour bar, and the contour bar can move radially along the through hole on the support plate and the combined hanging plate; the utility model can be applicable to workpieces of various models, thereby improving versatility; reducing the time for tooling modification and reassembly in production, improving production efficiency, and avoiding the problem of reduced tooling rigidity and strength caused by modification.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an auxiliary device for boring and milling pneumatic parts of a centrifugal compressor. Background Art

[0002] The pneumatic components of centrifugal compressors need to be processed at both ends simultaneously. During the workpiece processing process, the existing workpiece positioning device requires the positioning plate to avoid tool paths according to the sizes of different workpieces, resulting in frequent modifications of the positioning plate and poor versatility. At the same time, the rigidity of the positioning plate is unstable and prone to failure.

[0003] In addition, because the long axis end of the workpiece needs to be processed with a hoisting hole, and the size of the long axis ends of different specifications and models varies greatly, each processing requires the staff to inspect the boring and milling device, inspect the boring and milling auxiliary device, then program the processing, and finally modify the boring and milling auxiliary tooling and reassemble the accessories, which consumes a lot of time. And the modified device has a reduced rigidity and strength, so the service life of the boring and milling auxiliary device is reduced.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an auxiliary device for boring and milling pneumatic parts of a centrifugal compressor, which can be applicable to various types of workpieces, thereby improving versatility; reducing the time for tooling modification and reassembly during production, improving production efficiency, and avoiding the problem of reduced tooling stiffness and strength caused by modification.

[0006] The utility model adopts the following technical scheme: an auxiliary device for boring and milling pneumatic parts of a centrifugal compressor, comprising a support plate, the support plate is vertically arranged on a base, a through hole is opened on the support plate, and a combined hanging plate is sleeved in the through hole; the combined hanging plate can be detachably spliced;

[0007] A plurality of pressing plate assemblies are arranged on one side of the support plate, and the plurality of pressing plate assemblies are evenly distributed circumferentially with the axis of the through hole as the center; the pressing plate assemblies are installed on the contour bar, and the contour bar can move radially along the through hole on the support plate and the combined hanging plate.

[0008] Furthermore, the combined hanging plate comprises a first hanging plate and a second hanging plate, and the second hanging plate is coaxially and detachably sleeved in the first hanging plate;

[0009] The first hanging plate and the second hanging plate are clearance-matched; a circular through hole is provided at the center of the second hanging plate, and the circular through hole and the through hole on the support plate are coaxial.

[0010] Furthermore, the combined hanging plate is fixed on the supporting plate by a hook structure, and the hook structure is arranged on the back side of the supporting plate.

[0011] Furthermore, the contour strips are movably mounted on the support plate through matching T-shaped blocks and T-shaped slots; the T-shaped slots are provided on the support plate, the first hanging plate and the second hanging plate; and the T-shaped blocks are provided on the contour strips.

[0012] Furthermore, the hook structure includes a first hook and a second hook, the upper ends of the first hook and the second hook are connected to the upper end of the support plate through eye screws; the lower end of the first hook is connected to the first hanging plate through screws; the lower end of the second hook is connected to the second hanging plate through screws.

[0013] Furthermore, the pressure plate assembly includes an upper pressure plate and a lower pressure plate, the lower pressure plate is fixed on the equal height bar; an adjusting bolt is arranged in the middle of the lower pressure plate, a bolt hole is arranged on the upper pressure plate, the adjusting bolt passes through the bolt hole on the upper pressure plate and is fastened by a nut.

[0014] Furthermore, a support top is installed at one end of the lower pressing plate away from the center of the through hole, and the telescopic portion of the support top is connected to one end of the upper pressing plate away from the center of the through hole.

[0015] Furthermore, a spring is sleeved on the adjusting bolt, the upper end of the spring abuts against the upper pressing plate, and the lower end of the spring abuts against the lower pressing plate.

[0016] Furthermore, two limiting columns are provided on the support plate near the base, and the two limiting columns are spaced apart.

[0017] Furthermore, a rib plate is provided on the other side of the support plate, the bottom end of the rib plate is connected to the base, and the side surface of the rib plate is connected to the support plate;

[0018] The base is fixedly connected to the machine tool workbench.

[0019] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0020] The utility model can meet the use of workpieces of various types through the disassembly and combination of two hanging plates, and has high flexibility and strong versatility.

[0021] The utility model reduces the time of tooling modification, reduces the time of programmers, reduces the assembly time of operators, improves efficiency, and avoids the problem of tooling rigidity and strength reduction caused by modification.

[0022] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 It is a rear view of the utility model;

[0026] Figure 4 It is a front view of the utility model;

[0027] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0028] Figure 6 It is a left view of the utility model.

[0029] In the figure,

[0030] 1-base, 2-support plate, 3-rib plate, 4-equal height strip, 5-first hanging plate, 6-second hanging plate, 7-T-slot, 8-first hook, 9-second hook, 10-upper pressure plate, 11-lower pressure plate, 12-support top, 13-adjusting bolt, 14-spring, 15-positioning key, 16-positioning screw, 17-limiting column, 18-eye screw. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings. Example

[0032] like Figure 1-6 As shown together, the utility model provides an auxiliary device for boring and milling pneumatic parts of a centrifugal compressor, including a base 1 and a support plate 2. The support plate 2 is vertically arranged on the base 1. A through hole is opened on the support plate 2, and a detachable and spliced ​​combined hanging plate is sleeved in the through hole.

[0033] The combined hanging plate includes a first hanging plate 5 and a second hanging plate 6, wherein the second hanging plate 6 is coaxially and detachably sleeved inside the first hanging plate 5; the first hanging plate 5 and the second hanging plate 6 are clearance-matched; a circular through hole is provided at the center of the second hanging plate 6, and the circular through hole is coaxial with the through hole on the support plate.

[0034] The combined hanging plate is fixed on the support plate 2 by a hook structure, and the hook structure is arranged on the back of the support plate 2. The hook structure includes a first hook 8 and a second hook 9. The upper ends of the first hook 8 and the second hook 9 are connected to the upper end of the support plate 2 by eye screws 18; the lower end of the first hook 8 is connected to the first hanging plate 5 by screws; the lower end of the second hook 9 is connected to the second hanging plate 6 by screws. The use of a hoisting method to fix the combined hanging plate enhances the rigidity of the auxiliary device and also achieves the purpose of universality. When a layer of hanging plates is removed, the processing hole at the end of the long axis will be avoided.

[0035] A plurality of pressing plate assemblies are arranged on one side of the support plate 2 for pressing the workpiece; the plurality of pressing plate assemblies are evenly distributed circumferentially with the axis of the through hole as the center, and a rib plate 3 is arranged on the other side of the support plate 2 to strengthen the strength of the support device. The bottom end of the rib plate 3 is connected to the base 1, and the side of the rib plate 3 is connected to the support plate 2; preferably, two rib plates 3 are arranged, and the two rib plates 3 are arranged at intervals.

[0036] The pressing plate assembly is mounted on the contour bar 4, and the contour bar 4 can move radially along the through hole on the supporting plate 2 and the combined hanging plate to adjust and clamp workpieces of different diameters.

[0037] Furthermore, the contour strip 4 can be movably mounted on the support plate through matching T-blocks and T-slots 7; the T-slots 7 are provided on the support plate 2, the first hanging plate 5 and the second hanging plate 6; and the T-blocks are provided on the contour strip 4.

[0038] The pressure plate assembly includes an upper pressure plate 10 and a lower pressure plate 11. The lower pressure plate 11 is fixed on the contour bar 4. A support top 12 is installed at one end of the lower pressure plate 11 away from the center of the through hole. The telescopic part of the support top 12 is connected to the end of the upper pressure plate 10 away from the center of the through hole.

[0039] An adjusting bolt 13 is arranged in the middle of the lower pressing plate 11, and a bolt hole is arranged on the upper pressing plate 10. The adjusting bolt 13 passes through the bolt hole on the upper pressing plate 10 and is fastened by a nut; a spring 14 is sleeved on the adjusting bolt 13, and the upper end of the spring 14 abuts against the upper pressing plate 10, and the lower end abuts against the lower pressing plate 11; when in use, the workpiece is placed on one end of the upper pressing plate 10 and the lower pressing plate 11 close to the center of the through hole, and the adjusting bolt is adjusted to tighten the workpiece.

[0040] Furthermore, the base 1 is fixedly connected to the machine tool workbench. Specifically, the base 1 is fixedly connected to the machine tool workbench via a positioning key 15 and a positioning screw 16 .

[0041] Two limiting columns 17 are provided on the support plate 2 near the base 1 to support and position the workpiece; the two limiting columns 17 are arranged at intervals.

[0042] When the utility model is used, the two auxiliary devices are used in cooperation at the two ends of the workpiece, and the front and rear of the workpiece can be positioned and clamped simultaneously to ensure the coaxiality.

[0043] For workpieces of different sizes and diameters, the first hanging plate and the second hanging plate can be disassembled or assembled to flexibly adapt, with strong versatility.

[0044] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. An auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor, characterized in that: The device comprises a support plate (2), the support plate (2) being vertically arranged on the base (1), the support plate (2) being provided with a through hole, and a combined hanging plate being sleeved in the through hole; the combined hanging plate can be detachably spliced; A plurality of pressure plate assemblies are arranged on one side of the support plate (2), and the plurality of pressure plate assemblies are evenly distributed in the circumferential direction with the axis of the through hole as the center; the pressure plate assemblies are mounted on the contour bar (4), and the contour bar (4) can move radially along the through hole on the support plate (2) and the combined hanging plate.

2. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor according to claim 1, characterized in that: The combined hanging plate comprises a first hanging plate (5) and a second hanging plate (6), wherein the second hanging plate (6) is coaxially and detachably sleeved inside the first hanging plate (5); The first hanging plate (5) and the second hanging plate (6) are clearance-matched; a circular through hole is provided at the center of the second hanging plate (6), and the circular through hole and the through hole on the support plate are coaxial.

3. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor according to claim 1, characterized in that: The combined hanging plate is fixed on the support plate (2) via a hook structure, and the hook structure is arranged on the back side of the support plate (2).

4. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor as claimed in claim 2, characterized in that: The contour strip (4) is movably mounted on the support plate (2) via matching T-shaped blocks and T-shaped slots (7); the T-shaped slots (7) are provided on the support plate (2), the first hanging plate (5) and the second hanging plate (6); and the T-shaped blocks are arranged on the contour strip (4).

5. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor as claimed in claim 3, characterized in that: The hook structure comprises a first hook (8) and a second hook (9); the upper ends of the first hook (8) and the second hook (9) are connected to the upper end of the support plate (2) via eye screws (18); the lower end of the first hook (8) is connected to the first hanging plate (5) via screws; and the lower end of the second hook (9) is connected to the second hanging plate (6) via screws.

6. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor according to claim 1, characterized in that: The pressure plate assembly comprises an upper pressure plate (10) and a lower pressure plate (11), wherein the lower pressure plate (11) is fixed on the equal height bar (4); an adjusting bolt (13) is arranged in the middle of the lower pressure plate (11), and a bolt hole is arranged on the upper pressure plate (10); the adjusting bolt (13) passes through the bolt hole on the upper pressure plate (10) and is fastened by a nut.

7. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor as claimed in claim 6, characterized in that: A support top (12) is installed at one end of the lower pressing plate (11) away from the center of the through hole, and a telescopic portion of the support top (12) is connected to one end of the upper pressing plate (10) away from the center of the through hole.

8. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor as claimed in claim 6, characterized in that: A spring (14) is sleeved on the adjusting bolt (13); the upper end of the spring (14) abuts against the upper pressing plate (10), and the lower end abuts against the lower pressing plate (11).

9. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor as claimed in claim 1, characterized in that: Two limiting columns (17) are provided on the support plate (2) at positions close to the base (1), and the two limiting columns (17) are arranged at intervals.

10. The auxiliary device for boring and milling of pneumatic parts of a centrifugal compressor according to claim 1, characterized in that: A rib plate (3) is provided on the other side of the support plate (2), the bottom end of the rib plate (3) is connected to the base (1), and the side surface of the rib plate (3) is connected to the support plate (2); The base (1) is fixedly connected to the machine tool workbench.

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