CN106239195A - A kind of supporting tool of casing part - Google Patents

Abstract

The invention discloses a support tooling for casing parts, comprising: a base, a positioning seat, and a pressing plate assembly, the positioning seat is ring-shaped, the top surface of the positioning seat is used to support the flange of the casing part, and several pressing plate assemblies include a strut and a The pressure plate that can move up and down is set on the support rod. One end of the support rod is provided with a thread and a compression nut that matches the thread. The compression nut is used to compress the pressure plate on the casing parts, and the base is in the inner hole of the corresponding positioning seat. A first mounting hole is provided on the position, and a second mounting hole is formed on the base corresponding to the position around the outer wall of the positioning seat, and the strut is detachably installed in the first mounting hole or the second mounting hole. When the pressure plate assembly is installed on the inner hole side of the positioning seat at the same time, the outer circular surface of the part is processed, and when the pressure plate assembly is installed on the outer circular side of the positioning seat at the same time, the inner hole surface of the part is processed, thus realizing a The set of support tooling processes the outer circular surface and the inner hole surface of the part at the same time, which improves the processing efficiency.

Description

Support tooling for casing parts

technical field

The invention relates to the field of machining technology of casing parts, in particular to a support tool for casing parts.

Background technique

The casing of medium and small gas turbines is usually a cylindrical or conical thin-walled cylinder formed by connecting multiple cylindrical or conical thin-walled parts. Among the large number of thin-walled parts that make up the casing, there is a flange in the middle The cylindrical thin-walled parts of this kind of parts have thin walls, poor rigidity, and the flange surface is not easy to fix, and is prone to deformation during processing.

Usually, different methods are used to process the inner surface and the outer surface of such parts. Generally, the outer surface of the part is processed by a tension-type support tooling. The tension-type support tooling includes a drive unit and a drive unit connected to it. A number of tensioning blocks, install the tensioning support tooling in the inner hole of the part, and press the several tensioning blocks on the tensioning support tooling evenly from the center of the part radially outward through the drive unit On the inner wall of the part, fix the part on the tension-type support tooling, and then install the part on the workbench through the tension-type support tooling, so as to facilitate the processing of the outer surface of the part; when processing the inner surface of the part, due to the There is a flange in the middle of the outer wall, and the outer surface of the part cannot be clamped by a chuck-type support tooling. Usually, the part is placed on the base, and several pressure plates are evenly arranged on the base along the outer circumference of the part to clamp the part. Press onto the base.

In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art:

The existing supporting tooling cannot be used to process the outer circular surface and the inner hole surface of the part at the same time. When processing the outer circular surface and the inner hole surface of the part, two sets of supporting tooling are required to clamp the part, the processing efficiency is low, and the operation Those who work more intensively.

Contents of the invention

In order to solve the problem of low processing efficiency due to the need to use two sets of support tooling to clamp the part when machining the outer circular surface and the inner hole surface of the part, the embodiment of the present invention provides a support tool for the casing part. Described technical scheme is as follows:

An embodiment of the present invention provides a support tool for casing parts. The casing part includes a cylinder and a flange sleeved in the middle of the outer wall of the cylinder. The support tool includes: a base for mounting the The positioning seat of the casing part and several pressing plate assemblies, the positioning seat is ring-shaped, and the inner hole of the positioning seat matches the outer wall of the cylinder, the positioning seat is fixed on the top surface of the base, The top surface of the positioning seat is used to support the flange of the casing part, and the several pressing plate assemblies include a strut and a pressing plate that can move up and down on the strut, and one end of the strut is vertically arranged on the On the base, the other end of the strut is provided with a thread and a compression nut matching the thread, and the compression nut is used to compress the pressure plate on the casing part, and the base A number of first mounting holes for installing the struts are provided at positions corresponding to the inner holes of the positioning seat, and a number of first mounting holes for installing the struts are provided on the base at positions around the outer wall of the positioning seat. The second mounting hole of the strut, the strut is detachably installed in the first mounting hole or the second mounting hole.

In a possible implementation of the present invention, the support tooling further includes several lower support rods for supporting the lower end surface of the casing parts, and the several lower support rods are height-adjustably installed on the base superior.

In another possible implementation of the present invention, an adjustment nut is provided on the top surface of the base, threads are provided on the lower end of the lower support rod, and the lower end of the lower support rod passes through the adjustment nut and then inserted into the mounted on the base.

In another possible implementation manner of the present invention, a groove is provided on the side wall of each lower support rod along the length direction of the lower support rod, and a matching locating pins.

In another possible implementation of the present invention, the upper ends of several of the lower support rods are provided with support rings that match the lower ends of the casing parts, and the support rings are located on all the lower support rods. the upper end.

In another possible implementation manner of the present invention, one end of the pressing plate is pressed against the casing part, and each pressing plate assembly further includes an auxiliary support rod for supporting the other end of the pressing plate.

In another possible implementation manner of the present invention, a groove is provided on the surface of the pressure plate in contact with the auxiliary support bar, one end of the auxiliary support bar is installed on the base, and the auxiliary support bar is One end is arranged in the groove.

In another possible implementation manner of the present invention, the top surface of the positioning seat is provided with a positioning notch matched with the flange of the casing part.

In another possible implementation manner of the present invention, the strut is a double-ended stud, and the strut is screwed into the base.

In another possible implementation manner of the present invention, a locknut is provided on the top surface of the base, and the lower end of the strut passes through the locknut and is inserted into the base.

The beneficial effect brought by the technical solution provided by the embodiment of the present invention is: the casing parts are inserted on the positioning seat, the flange of the casing part is placed on the top surface of the positioning seat, when several pressure plate assemblies are installed on the positioning seat When it is in the first installation hole, the pressure plate is pressed against the upper end of the casing part, and the casing part is pressed by the pressure plate assembly and the positioning seat, so that the upper end surface of the flange and the outer circle of the casing part above the flange can be fixed. After the casing parts are turned over and fixed in the same way, the outer circular surface of the casing parts and the two ends of the flange can be processed respectively; the pressure plate assembly is installed in the second mounting hole of the positioning seat When pressing the pressure plate on the upper end surface of the flange of the casing part, the flange surface of the casing part is clamped by the pressure plate and the positioning seat, so that the inner hole surface of the casing part can be processed, and a set of The supporting tooling processes the outer circular surface and the inner hole surface of the casing part at the same time, which improves the processing efficiency and saves the processing cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only an embodiment of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a front perspective view of a supporting tool for processing parts provided by an embodiment of the present invention;

Fig. 2 is a top view of the base provided by the embodiment of the present invention;

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Among the various casing parts that make up the gas turbine casing, there is a cylindrical thin-walled casing part with a flange in the middle. This casing part includes a thin-walled cylinder and a flange set in the middle of the outer wall of the cylinder. , usually when turning and milling this kind of casing parts, two sets of clamping tools are needed to clamp the casing parts so as to process the inner surface and outer surface of the parts respectively. This method has high processing costs and It is inconvenient to operate and the processing efficiency is low. Therefore, the present invention provides a support tool for casing parts, which can be used to clamp the part with only one set of support tool to respectively perform turning and milling on the inner hole surface and the outer circular surface of the part, which is easy to operate and low in processing cost .

Fig. 1 is a front perspective view of the supporting tooling provided by the embodiment of the present invention when processing parts. Referring to Fig. 1, the casing part A includes a cylinder and a flange arranged in the middle of the outer wall of the cylinder, and the supporting tooling includes: a base 1, a To install the positioning seat 2 of the casing part A and several pressure plate assemblies 3, the positioning seat 2 is a positioning seat of an annular cylindrical structure, and the inner hole of the positioning seat 2 matches the outer wall of the cylinder of the casing part A, and the positioning seat 2 is vertically fixed on the top surface of the base 1, the top surface of the positioning seat 2 is used to support the flange of the casing part A, and several pressure plate assemblies 3 include a support rod 301 and a pressure plate 302 that can be moved up and down on the support rod 301 One end of the strut 301 is vertically arranged on the base 1, and the other end of the strut 301 is provided with a thread and a compression nut 303 matching the thread, and the compression nut 303 is used to compress the pressure plate 302 on the casing part A .

Place the casing part A on the positioning seat 2, and the outer wall of the casing part A cooperates with the annular positioning seat 2 to realize the rapid positioning of the casing part A, and because the positioning seat 2 and the casing part A are concentric, the positioning seat 2. When installed on the workbench, the casing part A can be positioned more accurately, and the casing part A can be pressed against the positioning seat 2 through the height-adjustable pressure plate 302, so that the casing part A can be fixed, which is convenient for the casing part A processing.

Fig. 2 is a top view of the base provided by the embodiment of the present invention. With reference to Fig. 2, the base 1 is provided with a plurality of first installation holes 1a for installing the struts 301 at positions corresponding to the inner holes of the positioning seat 2, and the base 1 A plurality of second mounting holes 1b are provided at positions corresponding to the outer wall of the positioning seat 2 for mounting the struts 301, and the struts 301 are detachably mounted in the first mounting holes 1a or the second mounting holes 1b.

The casing part A is inserted on the positioning seat 2, and the flange of the casing part A is placed on the top surface of the positioning seat 2. When several pressure plate assemblies 3 are installed in the first mounting hole 1a of the positioning seat 2, The pressure plate 302 is pressed against the upper end of the casing part A, and the casing part A is pressed by the pressure plate assembly 3 and the positioning seat 2, so that the upper end surface of the flange and the outer circular surface of the casing part A above the flange can be pressed. After turning over the casing part A and fixing it in the same way, the outer circular surface of the casing part A and the two ends of the flange can be processed respectively; When in the hole 1b, the pressure plate 302 is pressed against the upper end surface of the flange of the casing part A, and the flange surface of the casing part A is clamped by the pressure plate 302 and the positioning seat 2, so that the inner surface of the casing part A can be fixed. The hole surface is processed, and a set of support tooling is realized to process the outer circular surface and the inner hole surface of the casing part A at the same time, which improves the processing efficiency and saves the processing cost.

In this embodiment, the support tooling also includes several lower support rods 4 for supporting the lower end surface of the casing part A, and the several lower support rods 4 are mounted on the base 1 with height adjustment. By adjusting the height of the lower support rod 4, the upper end of the lower support rod 4 is closely attached to the lower end surface of the casing part A, and the lower end surface of the casing part 4 is supported by the lower support rod 4, so that the lower end surface of the flange can be reduced By the upward supporting force of the positioning seat 2, the deformation of the flange surface caused by the excessive force exerted by the pressure plate assembly 3 can be prevented.

As shown in Figure 1, in this embodiment, the top surface of the base 1 can also be provided with an adjusting nut 5, the lower end of the lower support rod 4 is provided with threads, and the lower end of the lower support rod 4 passes through the adjusting nut 5 and then inserted on base 1. By changing the position of the adjustment nut 5 on the lower support rod 4, the height of the lower support rod 4 on the base 1 can be adjusted, so that the height of the lower support rod 4 can be adjusted according to the size of the casing part A, so that the lower support rod 4 To support the lower end face of the casing part A, the present invention can be applicable to casing parts of different sizes like this.

As shown in Figure 1, the side wall of each lower support rod 4 is provided with a keyway 4a along the length direction of the lower support rod 4, and the positioning seat 2 is provided with a positioning pin 6 matched with the keyway 4a. There is a positioning hole 2a matched with the upper end of the lower support rod 4, the lower support rod 4 is inserted in the positioning hole 2a, and the keyway 4a is located in the positioning hole 2a, and the positioning pin 6 is inserted on the side wall of the positioning seat 2 , and the end of the positioning pin 6 that cooperates with the keyway 4a is also correspondingly arranged in the positioning hole 2a, the movement direction of the lower support rod 4 is limited by the positioning hole 2a, and the movement direction of the lower support rod 4 is limited by the positioning pin 6 and the keyway 4a Rotation can facilitate when the adjusting nut 5 is rotated, the lower support rod 4 will not rotate, so that the adjusting nut 5 can easily move on the threaded section of the lower support rod 4 .

In this embodiment, a support pad ring 7 is also provided between the upper ends of the lower support rods 4 and the lower end of the casing part A, and the support pad rings 7 are located at the upper ends of all the lower support rods 4 . The upper end surface of the supporting backing ring 7 is fitted to the lower end surface of the part. When the lower supporting rods 4 move up and down, the supporting backing ring 7 can move up and down along the axial direction better, thereby ensuring that the parts are supported when the parts are supported. The force is more even. The support backing ring 7 can be a support backing ring of flexible material of rubber, which can prevent the lower support rod 4 from damaging the parts when the casing part A is compressed.

In this embodiment, each pressing plate assembly 3 also includes an auxiliary support rod 304, one end of the pressing plate 302 is pressed on the casing part A, the other end of the pressing plate 302 is supported by the auxiliary supporting rod 304, and one end of the auxiliary supporting rod 304 is vertical Connected on the base 1, and the height of the auxiliary strut 304 can be adjusted, specifically, one end of the auxiliary strut 304 connected to the base 1 can be provided with a screw thread, and the auxiliary strut 304 is threadedly connected with the base 1, and the auxiliary strut 304 can be adjusted through the threaded structure. The height of the strut 304 on the base 1 . Supporting one end of the pressing plate 302 by the support member 304 can make the pressing of the other end of the pressing plate 302 on the casing part A more stable.

In this embodiment, a groove is provided on the surface of the pressure plate 302 in contact with the auxiliary support rod 304 , one end of the auxiliary support rod 304 is installed on the base 1 , and the other end of the support member 304 is disposed in the groove. This can make the connection between the auxiliary support rod 304 and the pressing plate 302 more stable and not easy to slip off.

As shown in FIG. 1 , the top surface of the positioning seat 2 is provided with a positioning notch matched with the flange of the casing part A. When the casing parts are installed through the positioning notch, quick positioning and installation can be realized, and work efficiency can be improved.

Specifically, the strut 301 is a double-ended stud, and the strut 301 is screwed with the base 1 . This can facilitate the disassembly and installation of the pressure plate assembly 3, and facilitate the installation of the pressure plate assembly 3 in the first installation hole or the second installation hole, so that a set of clamping tools can process the inner hole and the outer surface of the part at the same time.

Preferably, a locknut 8 is provided on the top surface of the base 1 , and the lower end of the strut 301 passes through the locknut 8 and is inserted on the base 1 . The connection between the strut 301 and the base 1 is reinforced by a locknut 8 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. A support tool for casing parts, the casing parts include a cylinder and a flange sleeved on the middle part of the outer wall of the cylinder, it is characterized in that the support tool includes: a base, for installing the The positioning seat of the casing part and several pressing plate assemblies, the positioning seat is ring-shaped, and the inner hole of the positioning seat matches the outer wall of the cylinder, the positioning seat is fixed on the top surface of the base, The top surface of the positioning seat is used to support the flange of the casing part, and the several pressing plate assemblies include a strut and a pressing plate that can move up and down on the strut, and one end of the strut is vertically arranged on the On the base, the other end of the strut is provided with a thread and a compression nut matching the thread, and the compression nut is used to compress the pressure plate on the casing part, and the base A plurality of first installation holes for installing the struts are provided at positions corresponding to the inner holes of the positioning seat, and a plurality of first installation holes for installing the struts are provided on the base at positions corresponding to the outer wall of the positioning seat. The second mounting hole of the strut, the strut is detachably mounted in the first mounting hole or the second mounting hole. 2. The support tool according to claim 1, characterized in that, the support tool also includes several lower support rods for supporting the lower end surface of the casing parts, and several of the lower support rods are height-adjustably installed on the base. 3. The support tool according to claim 2, wherein an adjustment nut is provided on the top surface of the base, a thread is provided at the lower end of the lower support rod, and the lower end of the lower support rod passes through the adjustment nut. The nut is then inserted on the base. 4. The support tool according to claim 3, wherein a keyway is provided on the side wall of each of the lower support rods along the length direction of the lower support rod, and a keyway is provided on the positioning seat to match the Dowel pins that fit in the keyway. 5. The support tool according to claim 2, characterized in that, the upper ends of several of the lower support rods are provided with support rings that match the lower ends of the casing parts, and the support rings are located on all of the the upper end of the lower support rod. 6. The supporting tool according to any one of claims 1-5, wherein one end of the pressing plate is pressed against the casing part, and each of the pressing plate assemblies further includes a support for supporting the pressing plate Auxiliary strut at the other end. 7. The support tool according to claim 6, wherein a groove is provided on the side of the pressure plate in contact with the auxiliary support bar, one end of the auxiliary support bar is installed on the base, and the auxiliary support bar The other end of the strut is arranged in the groove. 8. The support tool according to any one of claims 1-5, characterized in that, a positioning notch matching with the flange of the casing part is provided on the top surface of the positioning seat. 9. The supporting tool according to any one of claims 1-5, characterized in that, the strut is a double-ended stud, and the strut is screwed into the base. 10. The support tool according to claim 9, characterized in that a lock nut is provided on the top surface of the base, and the lower end of the strut passes through the lock nut and is inserted on the base .