CN219212346U - Fixing tool for machining frame-type parts with coaxial holes on side walls - Google Patents

Abstract

The utility model relates to a fixing tool for machining frame parts with coaxial holes on the side walls, which comprises two arc-shaped pressing blocks, a double-head pressing plate, double-head studs, fixing nuts, nut gaskets and T-shaped nuts; the lower end surfaces of the two arc-shaped pressing blocks are arc-shaped surfaces and are consistent with the shape of the side wall holes on the parts; the upper end surfaces of the two arc-shaped pressing blocks are planes; the double-end pressing plate is provided with a stud penetrating hole; the two arc-shaped pressing blocks are respectively in compression contact with the lower parts of the two coaxial holes on the frame part through arc surfaces, the two ends of the double-end pressing plate are respectively supported at the upper ends of the two arc-shaped pressing blocks, the T-shaped nut is arranged in a T-shaped groove on the machine tool workbench in a penetrating mode, the double-end stud is arranged in a penetrating mode of the double-end stud, the lower end of the double-end stud is connected with the T-shaped nut, the fixing nut is arranged at the upper end of the double-end stud in a locking mode, a nut gasket is compressed between the fixing nut and the double-end pressing plate, and the frame part is fixed on the machine tool workbench through the double-end pressing plate and the two arc-shaped pressing blocks. The fixture is high in clamping efficiency and can improve the machining efficiency of parts.

Description

Fixing tool for machining frame-type parts with coaxial holes on side walls

Technical Field

The utility model belongs to the technical field of machining fixtures, and particularly relates to a fixing tool for machining a frame part with coaxial holes on the side wall.

Background

For the existing frame part processing, the method adopted at present when the upper end face and the inner side of the upper end are finely milled is as follows: 2-4 pressing plates are needed to clamp the upper end face of the frame part to the outer side and the inner side respectively, an adjustable jack is used for supporting the other side of the pressing plates, if the whole upper end face is to be finely milled, two clamping is needed, the front clamping force and the back clamping force are kept consistent as much as possible, otherwise, the influence degree of error accumulation on precision is directly increased due to the increase of the clamping times.

The existing machining fixture has the following defects: multiple pressing plates and adjustable jacks are needed, the assembly and the disassembly are troublesome, and the machining process needs to be assembled and disassembled for multiple times, so that the precision is affected. Therefore, in order to solve the problem of troublesome clamping and improve the machining precision of parts, the positioning tool for machining the parts is arranged by pre-positioning the frame parts with coaxial holes on the existing side walls.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the fixing tool for machining the frame-type parts, which can rapidly position and clamp the parts, has high clamping efficiency and simple and efficient operation, and can finish machining by one-time clamping, thereby shortening the machining time of the parts, reducing the machining cost and improving the machining efficiency, and has coaxial holes on the side wall.

Fixed frock is used in frame class part processing that has coaxial hole on lateral wall, its characterized in that: the device comprises two arc-shaped pressing blocks, a double-end pressing plate, a double-end stud, a fixed nut, a nut gasket and a T-shaped nut;

the lower end surfaces of the two arc-shaped pressing blocks are arc-shaped surfaces, and the shape of the arc-shaped surfaces is consistent with the shape of the side wall holes on the parts; the upper end surfaces of the two arc-shaped pressing blocks are planes; the double-end pressing plate is a rectangular strip pressing plate, and stud penetrating holes are formed in the double-end pressing plate;

the two arc-shaped pressing blocks are respectively in compression contact with the lower parts of two coaxial holes on the frame part through arc surfaces, the two ends of the double-end pressing plate are respectively lapped and supported at the upper ends of the two arc-shaped pressing blocks, the T-shaped nut is arranged in a T-shaped groove on a machine tool workbench in a penetrating mode, the double-end stud is arranged in a stud penetrating hole on the double-end pressing plate in a penetrating mode, the lower end of the double-end stud is connected with the T-shaped nut through threads, the fixing nut is arranged at the upper end of the double-end stud in a locking mode, the nut gasket is compressed between the fixing nut and the double-end pressing plate, and the frame part is fixed on the machine tool workbench through the double-end pressing plate and the two arc-shaped pressing blocks.

Further: the stud penetrating holes on the double-end pressing plate adopt long slot holes.

The utility model has the advantages and positive effects that:

1. the arc-shaped block has the advantages that the inner diameter of the shaft hole of the frame part is customized, and the thickness of the shaft hole of the frame part is generally larger than the thickness of the wall, so that the contact area is larger during clamping, the clamping stability can be ensured, and the two positions of the pressing plate are contacted with each other to achieve the effect of the conventional normal 4 pressing plates.

2. The utility model uses the mutual support of a pair of shaft holes on the frame part, omits the process of adjusting the adjustable jack, and has more uniform clamping position stress.

3. The single clamping time of the improved tool is obviously lower than that of the original tool, and the auxiliary processing time of clamping and the like is greatly reduced.

4. The clamping frequency of the improved tool is reduced from original 2 times to 1 time, so that the operation frequency of an operator is effectively reduced, the working intensity of the operator is reduced, and the operator can work continuously for a long time.

5. The improved tool research result can completely meet the requirements of small-batch and large-batch production of frame parts, and can be popularized to the production and processing of related parts.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Detailed Description

The structure of the present utility model will be further described by way of examples with reference to the accompanying drawings. It should be noted that the present embodiments are illustrative and not restrictive.

Referring to fig. 1, the utility model relates to a fixing tool for machining frame parts with coaxial holes on the side walls, which comprises the following steps: the welding fixture comprises two arc-shaped pressing blocks 1, a double-end pressing plate 2, a double-end stud 3, a fixing nut 4, a nut gasket (not shown in the drawing) and a T-shaped nut 5.

The two arc-shaped pressing blocks are used for being in direct contact with the two shaft holes 6.1 of the frame part 6. The lower end surfaces of the two arc-shaped pressing blocks are arc-shaped surfaces, and the shape of the arc-shaped surfaces is consistent with the shape of the side wall hole on the part. The upper end surfaces of the two arc-shaped pressing blocks are planes.

The double-end pressing plate is a rectangular strip pressing plate, and a long slot hole is formed in the double-end pressing plate and used for penetrating through the double-end stud, so that the relative position between the double-end pressing plate and the T-shaped nut can be aligned conveniently.

The T-shaped nut is used for realizing connection of the positioning tool and a machine tool workbench.

When the frame parts are processed, the frame parts are placed on a working table of a machine tool; then two arc pressing blocks are respectively contacted with a pair of shaft holes on the part in a mode that the arc faces downwards, a T-shaped nut is placed in a T groove of a machine tool workbench and is connected with the lower end of a double-end stud through threads; the double-end pressing plate with proper length is selected, two ends of the double-end pressing plate are supported on the plane of the upper end of the arc pressing block, the double-end stud penetrates through a long groove hole in the double-end pressing plate, a nut gasket and a fixing nut are arranged at the upper end of the double-end pressing plate on the double-end stud and are locked, and therefore the pressing and fixing of frame parts are achieved through the double-end pressing plate and the two arc pressing blocks.

According to the utility model, through the connection structure of the double-end stud, the T-shaped nut and the fixing nut, downward pressing force is applied to the double-end pressing plate, and the double-end pressing plate acts on the lower parts of the two coaxial holes on the frame part through the two arc-shaped pressing blocks, so that the frame part is fixed. The fixing structure can completely avoid the upper end and the inner side part of the upper end of the frame part, so that one-time clamping can be realized, and the whole upper end face, the inner and outer chamfers of the upper end face and the inner side surface of the upper end of the frame part are machined.

Although the embodiments of the present utility model and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the appended claims, and therefore the scope of the utility model is not limited to the embodiments and the disclosure of the drawings.

Claims (2)

1. Fixed frock is used in frame class part processing that has coaxial hole on lateral wall, its characterized in that: the device comprises two arc-shaped pressing blocks, a double-end pressing plate, a double-end stud, a fixed nut, a nut gasket and a T-shaped nut;

the lower end surfaces of the two arc-shaped pressing blocks are arc-shaped surfaces, and the shape of the arc-shaped surfaces is consistent with the shape of the side wall holes on the parts; the upper end surfaces of the two arc-shaped pressing blocks are planes; the double-end pressing plate is a rectangular strip pressing plate, and stud penetrating holes are formed in the double-end pressing plate;

the two arc-shaped pressing blocks are respectively in compression contact with the lower parts of two coaxial holes on the frame part through arc surfaces, the two ends of the double-end pressing plate are respectively lapped and supported at the upper ends of the two arc-shaped pressing blocks, the T-shaped nut is arranged in a T-shaped groove on a machine tool workbench in a penetrating mode, the double-end stud is arranged in a stud penetrating hole on the double-end pressing plate in a penetrating mode, the lower end of the double-end stud is connected with the T-shaped nut through threads, the fixing nut is arranged at the upper end of the double-end stud in a locking mode, the nut gasket is compressed between the fixing nut and the double-end pressing plate, and the frame part is fixed on the machine tool workbench through the double-end pressing plate and the two arc-shaped pressing blocks.

2. The fixture for machining frame-like parts having coaxial holes in the side walls according to claim 1, wherein: the stud penetrating holes on the double-end pressing plate adopt long slot holes.

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