Special-shaped casting shell machining tool

Abstract

The utility model discloses a special-shaped casting shell machining tool which comprises a tool bottom plate installed on a machine tool, V-shaped iron used for supporting a part is installed at the left end and the right end of the tool bottom plate, and a positioning auxiliary disc which is installed on the tool bottom plate and used for determining whether the part is straightened in place or not is arranged on the outer side of the V-shaped iron. The bottom of the V-shaped iron is connected with an adjustable sizing block for finely adjusting the position of the part; a locking mechanism used for fixing and locking the part which is straightened in place is connected to the upper portion of the V-shaped iron. The tool bottom plate is further provided with an auxiliary positioning mechanism used for supporting and fixing the branch part of the part. The special-shaped casting shell machining tool is compact and simple in structure, accurate in positioning and rapid in clamping, is used for clamping and machining barrel-shaped special-shaped casting shell parts, and is large in shell material coverage and wide in application range.

Description

Technical Field

[0001] The utility model belongs to the technical field of workholding fixtures in machining, and particularly relates to a workholding fixture for machining special-shaped casting shells. Background Art

[0002] In the power transmission and transformation industry, there are many special-shaped casting shell parts. The characteristics of this type of product are that strict requirements are imposed on dimensions and geometric tolerances. In order to ensure uniform machining allowance for the machining space dimensions of parts, reduce the difficulty of part alignment, and shorten the alignment time, so as to ensure product quality and improve production efficiency, a new type of workholding fixture needs to be designed. Content of the Utility Model

[0003] Based on the above deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a workholding fixture for machining special-shaped casting shells, which has a compact and simple structure, accurate positioning, and quick clamping. It is used for clamping and machining barrel-shaped special-shaped casting shell parts, with a large coverage of shell materials and a wide application range.

[0004] To solve the above technical problem, the utility model is realized through the following technical solutions: The utility model provides a workholding fixture for machining special-shaped casting shells, which includes a workholding fixture bottom plate installed on a machine tool. V-shaped irons for supporting parts are installed at the left and right ends of the workholding fixture bottom plate. A positioning auxiliary disk is arranged outside the V-shaped irons and installed on the workholding fixture bottom plate for determining whether the parts are correctly positioned; an adjustable shim is connected to the bottom of the V-shaped iron for finely adjusting the position of the parts; a locking mechanism is connected above the V-shaped iron for fixedly locking the correctly positioned parts; a secondary positioning mechanism for supporting and fixing the branch parts of the parts is also installed on the workholding fixture bottom plate.

[0005] Optionally, the locking mechanism includes arc-shaped pressing plate connecting screws fixed at both ends of the top of the V-shaped iron, an arc-shaped pressing plate slidably connected to the arc-shaped pressing plate connecting screws, and adjusting nuts threadedly connected to the arc-shaped pressing plate connecting screws. The adjusting nuts are located above the part where the arc-shaped pressing plate is slidably connected to the arc-shaped pressing plate connecting screws.

[0006] Further, the adjustable shims are located on two inclined surfaces of the V-shaped iron and are in contact with the outer peripheral surface of the parts.

[0007] Optionally, an adjusting screw is rotatably connected in the adjustable shim, and the adjusting screw is threadedly connected to the V-shaped iron.

[0008] Optionally, the upper part of the positioning auxiliary disk is a disk, and the size of the disk is adapted to the size of the flange at the end of the part.

[0009] Further, the bottoms of the V-shaped iron and the positioning auxiliary disk are placed in the positioning grooves of the workholding fixture bottom plate.

[0010] Optionally, the secondary positioning mechanism includes at least one secondary positioning auxiliary disc installed at the front end or the rear end of the tooling base plate, and a secondary adjustable shim block located inside the secondary positioning auxiliary disc. The secondary adjustable shim block is installed above the support adjustment seat through a secondary adjustment screw; the secondary adjustable shim block is rotatably connected to the top end of the secondary adjustment screw, and the lower part of the secondary adjustment screw is threadedly connected to the support adjustment seat.

[0011] Further, a secondary arc-shaped pressing plate is provided directly above the secondary adjustable shim block, and secondary arc-shaped pressing plate connecting screws fixed to the tooling base plate are provided on both sides of the secondary adjustable shim block; both ends of the secondary arc-shaped pressing plate are slidably connected to the two secondary arc-shaped pressing plate connecting screws, and an adjusting nut threadedly connected to the secondary arc-shaped pressing plate connecting screw is provided above the part of the secondary arc-shaped pressing plate slidably connected to the secondary arc-shaped pressing plate connecting screw.

[0012] Optionally, the four corners of the tooling base plate have tooling installation and fixing holes, and the tooling base plate is installed on the machine tool through the tooling installation and fixing holes.

[0013] As described above, the special-shaped casting shell processing tooling of the present invention has at least the following beneficial effects:

[0014] 1. The main part of the part is supported by the V-shaped iron, and then the correct alignment position of the part is checked by the positioning auxiliary disc. The position of the part is finely adjusted by the adjustable shim block at the bottom of the V-shaped iron until the part is aligned to the correct position. Then, the part that is aligned in place is fixed and locked by the arc-shaped pressing plate and the arc-shaped pressing plate connecting screw of the locking mechanism, so that the positioning of the part is accurate and the clamping is fast.

[0015] 2. The branch part of the part is supported by the secondary adjustable shim block, and then the correct alignment position of the branch part of the part is checked by the secondary positioning auxiliary disc. The position of the branch part of the part is finely adjusted by adjusting the up and down movement of the secondary adjustable shim block through the secondary adjustment screw until the branch part of the part is aligned to the correct position. Then, the branch part of the part that is aligned in place is fixed and locked by the secondary arc-shaped pressing plate and the secondary arc-shaped pressing plate connecting screw, so that the positioning of the part is accurate and the clamping is fast.

[0016] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following is described in detail in conjunction with the preferred embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings of the embodiments will be briefly introduced below.

[0018] Figure 1 It is a structural schematic diagram of a special-shaped casting shell processing tooling of the present utility model;

[0019] Figure 2 It is a schematic diagram of a part being positioned and fixed on the tooling of the present utility model.

[0020] In the figure: 1 - tooling bottom plate, 2 - positioning auxiliary disc, 3 - V-shaped iron, 4 - adjustable shim, 5 - adjusting screw, 6 - arc-shaped pressing plate, 7 - arc-shaped pressing plate connecting screw, 8 - secondary arc-shaped pressing plate, 9 - secondary arc-shaped pressing plate connecting screw, 10 - secondary positioning auxiliary disc, 11 - secondary adjustable shim, 12 - secondary adjusting screw, 13 - support adjusting seat, 14 - tooling installation and fixing hole. Detailed implementation manners

[0021] The following will describe in detail the specific implementation manners of the present utility model. As a part of this specification, the principles of the present utility model are illustrated through embodiments, and other aspects, features, and advantages of the present utility model will become clear through this detailed description. In the accompanying drawings referred to, the same or similar components in different figures are denoted by the same reference numerals.

[0022] As Figure 1 and Figure 2 shown, the special-shaped casting shell processing tooling of the present utility model includes a tooling bottom plate 1 that serves as the base of the tooling and is used to install all other components. V-shaped irons 3 for supporting the part are installed at the left and right ends of the tooling bottom plate 1. A positioning auxiliary disc 2 is provided outside the V-shaped iron 3 and is installed on the tooling bottom plate 1 for determining whether the part is properly positioned. Above the positioning auxiliary disc 2 is a disc, and the size of the disc is adapted to the size of the flange at the end of the part. The positioning auxiliary disc 2 is used for aligning the part to be machined.

[0023] An adjustable shim 4 for finely adjusting the position of the part is connected to the bottom of the V-shaped iron 3. Among them, the adjustable shim 4 is located on two inclined surfaces of the V-shaped iron 3 and is in contact with the outer peripheral surface of the part. An adjusting screw 5 is rotatably connected in the adjustable shim 4, and the adjusting screw 5 is threadedly connected to the V-shaped iron 3. By rotating the adjusting screw 5, the adjustable shim 4 can move up and down without rotating, and the up and down movement of the adjustable shim 4 is used to adjust the part so that the flange corresponding to the end of the part is consistent with the positioning auxiliary disc 2. When the part is placed on the tooling, it is determined whether the part is properly placed through the positioning auxiliary disc 2, and if there is a deviation in position, it is finely adjusted through the V-shaped iron 3.

[0024] In addition, a locking mechanism for fixing and locking the parts that are properly positioned is connected above the V-block 3. Among them, the locking mechanism includes arc-shaped pressing plate connecting screws 7 fixed at both ends of the top of the V-block 3, an arc-shaped pressing plate 6 slidably connected to the arc-shaped pressing plate connecting screws 7, and adjusting nuts threadedly connected to the arc-shaped pressing plate connecting screws 7. The adjusting nuts are located above the part where the arc-shaped pressing plate 6 is slidably connected to the arc-shaped pressing plate connecting screws 7. The arc-shaped pressing plate 6 is used to fix and lock the parts, and the arc-shaped pressing plate connecting screws 7 are used to limit the arc-shaped pressing plate 6 and cooperate with the adjusting nuts to fix and lock the parts by the arc-shaped pressing plate 6.

[0025] The four corners of the tooling base plate 1 have tooling installation and fixing holes 14, and the tooling base plate 1 is installed on the machine tool through the tooling installation and fixing holes 14. The bottom ends of the V-block 3 and the positioning auxiliary disc 2 are placed in the positioning grooves of the tooling base plate 1, which is convenient for replacing the V-block 3 and the positioning auxiliary disc 2.

[0026] In the present utility model, a secondary positioning mechanism for supporting and fixing the branched parts of the parts is also installed on the tooling base plate 1. Among them, the secondary positioning mechanism includes at least one secondary positioning auxiliary disc 10 installed at the front end or the rear end of the tooling base plate 1, and a secondary adjustable cushion block 11 located inside the secondary positioning auxiliary disc 10. The secondary adjustable cushion block 11 is installed above the support adjusting seat 13 through a secondary adjusting screw 12. The bottom ends of the secondary positioning auxiliary disc 10 and the support adjusting seat 13 are also placed in the positioning grooves of the tooling base plate 1. The secondary adjustable cushion block 11 is rotatably connected to the top end of the secondary adjusting screw 12, and the lower part of the secondary adjusting screw 12 is threadedly connected to the support adjusting seat 13. By rotating the secondary adjusting screw 12, the secondary adjustable cushion block 11 is raised or lowered, thereby finely adjusting the branched parts of the parts.

[0027] A secondary arc-shaped pressing plate 8 is provided directly above the secondary adjustable cushion block 11, and secondary arc-shaped pressing plate connecting screws 9 fixed to the tooling base plate 1 are provided on both sides of the secondary adjustable cushion block 11. Both ends of the secondary arc-shaped pressing plate 8 are slidably connected to the two secondary arc-shaped pressing plate connecting screws 9, and an adjusting nut threadedly connected to the secondary arc-shaped pressing plate connecting screws 9 is provided above the part where the secondary arc-shaped pressing plate 8 is slidably connected to the secondary arc-shaped pressing plate connecting screws 9. By adjusting the nut, the secondary arc-shaped pressing plate 8 is moved downward to cooperate with the secondary adjustable cushion block 11 to fix and lock the branched parts of the parts.

[0028] It is not difficult to understand that one or more secondary positioning mechanisms can also be provided at the front end and the rear end of the tooling base plate 1, and the purpose is to ensure that the branched parts of the parts in different orientations can also be positioned and fixed on the tooling base plate 1.

[0029] Next, with reference to Figure 1 and Figure 2 and in combination with the description of the above structural features, the use process of the special-shaped casting shell processing tooling of the present utility model will be described:

[0030] First, install the tooling base plate 1 of the special-shaped casting shell processing tooling on the corresponding machine tool through the tooling installation and fixing holes 14, align and position according to the bottom holes and lock them with bolts; install the V-shaped iron 3, adjustable shim 4, adjusting screw 5, auxiliary adjustable shim 11, auxiliary adjusting screw 12, and support adjusting seat 13.

[0031] Place the parts to be processed on the V-shaped iron 3 and the auxiliary adjustable shim 11, place the positioning auxiliary disc 2 and the auxiliary positioning auxiliary disc 10 in the positioning grooves of the tooling base plate 1, and adjust the parts through the adjustable shim 4, adjusting screw 5, auxiliary adjustable shim 11, and auxiliary adjusting screw 12 to make the flange of the parts consistent with the positioning auxiliary disc; install the arc-shaped pressing plate 6, arc-shaped pressing plate connecting screw 7, auxiliary arc-shaped pressing plate 8, auxiliary arc-shaped pressing plate connecting screw 9 and lock the parts through the adjusting nut. After the processing clamping is completed, the processing can be carried out on the machine tool.

[0032] The above is the preferred implementation mode of the present invention. Of course, the scope of rights of the present invention cannot be limited thereby. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and changes can still be made, and these improvements and changes are also regarded as the protection scope of the present invention.

Claims

1. An irregular casting shell processing tooling, including a tooling bottom plate (1) installed on a machine tool, characterized in that, At the left and right ends of the tooling base plate (1), there are V-shaped irons (3) for supporting parts. Outside the V-shaped irons (3), there is a positioning auxiliary disc (2) installed on the tooling base plate (1) and used to determine whether the parts are properly positioned. At the bottom of the V-shaped iron (3), there is an adjustable shim (4) for fine-tuning the position of the part. Above the V-shaped iron (3), there is a locking mechanism for fixing and locking the properly positioned parts. On the tooling base plate (1), there is also a secondary positioning mechanism for supporting and fixing the branched parts of the parts.

2. The special-shaped casting shell processing tooling according to claim 1, wherein The locking mechanism includes arc-shaped pressing plate connecting screws (7) fixed at both ends of the top of the V-shaped iron (3), an arc-shaped pressing plate (6) slidably connected to the arc-shaped pressing plate connecting screws (7), and an adjusting nut threadedly connected to the arc-shaped pressing plate connecting screws (7). The adjusting nut is located above the part where the arc-shaped pressing plate (6) is slidably connected to the arc-shaped pressing plate connecting screws (7).

3. The special-shaped casting shell processing tooling according to claim 1, wherein The adjustable shim (4) is located on the two inclined surfaces of the V-shaped iron (3) and is in contact with the outer peripheral surface of the part.

4. The special-shaped casting shell processing tooling according to claim 3, characterized in that In the adjustable shim (4), there is an adjusting screw (5) rotatably connected, and the adjusting screw (5) is threadedly connected to the V-shaped iron (3).

5. The special-shaped casting shell processing tooling according to claim 1, characterized in that Above the positioning auxiliary disc (2) is a disc, and the size of the disc is adapted to the size of the flange at the end of the part.

6. The special-shaped casting shell processing tooling according to claim 1, characterized in that, The bottom ends of the V-shaped iron (3) and the positioning auxiliary disc (2) are placed in the positioning grooves of the tooling base plate (1).

7. The special-shaped casting shell processing tooling according to any one of claims 1 to 6, characterized in that, The secondary positioning mechanism includes at least one secondary positioning auxiliary disc (10) installed at the front end or the rear end of the tooling base plate (1), and a secondary adjustable shim (11) located inside the secondary positioning auxiliary disc (10). The secondary adjustable shim (11) is installed above a support adjusting seat (13) through a secondary adjusting screw (12). The secondary adjustable shim (11) is rotatably connected to the top end of the secondary adjusting screw (12), and the lower part of the secondary adjusting screw (12) is threadedly connected to the support adjusting seat (13).

8. The special-shaped casting shell processing tooling according to claim 7, characterized in that, Above the secondary adjustable shim (11), there is a secondary arc-shaped pressing plate (8), and on both sides of the secondary adjustable shim (11), there are secondary arc-shaped pressing plate connecting screws (9) fixed to the tooling base plate (1). Both ends of the secondary arc-shaped pressing plate (8) are slidably connected to the two secondary arc-shaped pressing plate connecting screws (9), and above the part where the secondary arc-shaped pressing plate (8) is slidably connected to the secondary arc-shaped pressing plate connecting screws (9), there is an adjusting nut threadedly connected to the secondary arc-shaped pressing plate connecting screws (9).

9. The special-shaped casting shell processing tooling according to claim 1, characterized in that, At the four corners of the tooling base plate (1), there are tooling installation and fixing holes (14), and the tooling base plate (1) is installed on the machine tool through the tooling installation and fixing holes (14).

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