CN219025657U - Necking shaping tool for stainless steel sleeve - Google Patents

Abstract

The utility model relates to a necking shaping tool of a stainless steel sleeve, which comprises an upper tool die part and a lower tool die part, wherein the upper tool die part comprises an upper forming plate, an upper forming die, an inner sliding block, a sliding plate and a compression spring; the lower die part of the tool comprises a wedge, a limit column, a positioning plate and a wedge fixing plate, wherein the wedge is arranged on the wedge fixing plate and is fixed on the limit column, the limit column is fixed on the positioning plate, the first inclined plane at the lower part of the inner side of the inner slide is in matched connection with the second inclined plane at the peripheral surface of the wedge, the sleeve is tightly supported by expanding the wedge along the radial direction when the inner slide moves downwards, and the upper die is formed to press downwards to finish necking shaping of the sleeve; the method avoids the damage of the lathe screw rod, completes the roundness shaping of the stainless steel sleeve, and solves the problem of out-of-tolerance roundness of the stainless steel sleeve.

Description

Necking shaping tool for stainless steel sleeve

[ technical field ]

The utility model relates to the field of vertical stainless steel stamping multistage pump part machining tools, in particular to a necking shaping tool for a stainless steel sleeve.

[ background Art ]

The stainless steel sleeve part is a pressure-bearing part of the vertical stainless steel stamping multistage pump, and the specification and model of the stainless steel sleeve part are diversified according to the tonnage and the stage number of the water pump. The welding pipe is formed by blanking, necking and lathe processing of a stainless steel welding pipe with the wall thickness of 2.0mm and the specification of more than phi 138x6000mm, wherein the necking procedure is formed by rolling on a lathe at present, and the damage to a carriage screw rod in the lathe is large; the outer diameters of the two ends of the sleeve part are respectively and radially sealed with the water inlet and outlet section and the pump cover of the water pump through O-shaped rings to prevent liquid leakage, so that the roundness of the outer diameter of the sleeve part is required to be within 1 mm; the roundness of the outer diameter of a stainless steel welded pipe with the specification of phi 138x6000mm provided in the current market is generally about 2.0mm, and the technical requirements cannot be met.

[ summary of the utility model ]

The utility model aims to solve the defects and provide the necking shaping tool for the stainless steel sleeve, which is characterized in that a stamping process is used for replacing a lathe edging process, so that the damage of a lathe screw is avoided, the roundness shaping of the stainless steel sleeve is finished, the problem of out-of-tolerance roundness of the stainless steel sleeve is solved, and the applicability is strong.

The utility model provides a stainless steel sleeve's throat plastic frock is designed in order to realize above-mentioned purpose, including frock cope match-plate pattern part and frock lower mould part, frock cope match-plate pattern part includes cope match-plate pattern 1, takes shape cope match-plate pattern 2, interior sliding block 11, slide 12 and compression spring 13, take shape cope match-plate pattern 2 and fix on cope match-plate pattern 1 through socket head cap screw three 15, be provided with interior sliding block 11 and slide 12 in the take shape cope match-plate pattern 2, interior sliding block 11 passes through linear extension spring 3 and installs on slide 12 to freely slide along radial, slide 12 hangs on cope match-plate pattern 1 through contour screw 14, be provided with compression spring 13 between slide 12 and the cope match-plate pattern 1, slide 12 and interior sliding block 11 are along axial displacement in take shape cope match-plate pattern 2 under compression spring 13's effect; the lower die part of the tool comprises a wedge 4, a limiting column 5, a positioning plate 7 and a wedge fixing plate 9, wherein the wedge 4 is arranged on the wedge fixing plate 9 and is fixed on the limiting column 5 through a second hexagon socket screw 10, the limiting column 5 is fixed on the positioning plate 7 through a first hexagon socket screw 6, a sleeve 8 to be formed is positioned in the positioning plate 7, a first inclined plane is arranged at the lower part of the inner side of an inner slide 11, the first inclined plane is connected with the second inclined plane arranged on the outer peripheral surface of the wedge 4 in a matched manner, the inner slide 11 is expanded and tightly supported on the sleeve 8 along the radial direction through the wedge 4 when moving downwards along the axial direction, and the forming upper die 2 is pressed downwards to finish the necking shaping of the sleeve 8.

Further, a compression spring mounting hole is formed in the inner lower portion of the upper die plate 1, the compression spring 13 is mounted in the compression spring mounting hole, and the other end of the compression spring 13 is connected with the sliding plate 12.

Further, the number of the inner slides 11 is at least three, the cross section of each inner slide 11 is in a sector shape, the at least three inner slides 11 are uniformly distributed along the circumferential direction, and the whole split inner slides are in a circular ring shape; preferably, six inner slides 11 are provided, and the shape and size are the same.

Further, the upper part of the inner ring formed by the inner slide 11 after being spliced is columnar, the lower part of the inner ring is a conical surface matched and connected with the outer circumference of the inclined wedge 4, the inner slide 11 contacts with the inclined wedge 4 under the action of the compression spring 13 and expands and tightens the sleeve 8 from inside to outside in the radial direction, and after the forming upper die 2 descends and completes outer circle necking and shaping of the sleeve 8 together with the inner slide 11.

Further, the top of the limiting column 5 is embedded into the inclined wedge fixing plate 9, the bottom of the limiting column 5 is embedded into the positioning plate 7, and the inner sliding block 11 completes necking shaping of the outer circle of the sleeve 8 with different lengths by replacing the limiting columns 5 with different lengths.

Further, a positioning groove 16 which is concave inwards is formed in the middle of the top surface of the positioning plate 7, and the sleeve 8 to be formed is positioned in the positioning plate 7 through the positioning groove 16.

Compared with the prior art, the necking shaping tool for the stainless steel sleeve is novel in structure and reasonable in design, the trimming process of a lathe is replaced by a stamping process, the damage of a lathe screw is avoided, meanwhile, the roundness shaping of the stainless steel sleeve is finished, the problem of out-of-tolerance roundness of the stainless steel sleeve is solved, the applicability is strong, and popularization and application are worth.

[ description of the drawings ]

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a bottom view of the upper half of the present utility model;

in the figure: 1. the upper die plate 2, the upper forming die 3, linear tension springs, 4, inclined wedges 5, limit posts 6, first inner hexagonal screws 7, positioning plates 8, sleeves 9, inclined wedge fixing plates 10, second inner hexagonal screws 11, inner sliding blocks 12, sliding plates 13, compression springs 14, equal-height screws 15, third inner hexagonal screws 16 and positioning grooves.

Detailed description of the preferred embodiments

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1 and fig. 2, the utility model provides a necking shaping tool for a stainless steel sleeve, which comprises an upper tool die part and a lower tool die part, wherein the upper tool die part comprises an upper die plate 1, an upper forming die 2, an inner slide 11, a slide plate 12 and a compression spring 13, the upper forming die 2 is fixed on the upper die plate 1 through an inner hexagon screw III 15 (M10 x 50), the inner slide 11 and the slide plate 12 are arranged in the upper forming die 2, the inner slide 11 is arranged on the slide plate 12 through a linear tension spring 3 and freely slides along the radial direction, the slide plate 12 is hung on the upper die plate 1 through a contour screw 14, the compression spring 13 is arranged between the slide plate 12 and the upper die plate 1, and the slide plate 12 and the inner slide 11 axially move in the upper forming die 2 under the action of the compression spring 13; the lower die part of the tool comprises a wedge 4, a limit post 5, a positioning plate 7 and a wedge fixing plate 9, wherein the wedge 4 is arranged on the wedge fixing plate 9 and is fixed on the limit post 5 through a second hexagon socket head cap screw 10 (M10 x 50), the limit post 5 is fixed on the positioning plate 7 through a first hexagon socket head cap screw 6 (M10 x 30), a sleeve 8 to be formed is positioned in the positioning plate 7, a first inclined plane is arranged at the lower part of the inner side of an inner slide 11 and is connected with a second inclined plane arranged on the outer peripheral surface of the wedge 4 in a matched manner, the inner slide 11 expands radially through the wedge 4 when moving downwards along the axial direction to tightly support the sleeve 8, and the upper die 2 is formed to press downwards to finish the shrinkage shaping of the sleeve 8.

The inner sliding blocks 11 are at least three, the cross section of each inner sliding block 11 is in a sector shape, the at least three inner sliding blocks 11 are uniformly distributed along the circumferential direction, and the whole split inner sliding blocks are in a circular ring shape; preferably, the inner slide 11 is provided with six and is identical in shape and size; the upper part of an inner ring formed by splicing the inner slide 11 is columnar, the lower part of the inner ring is a conical surface matched and connected with the outer circumference of the inclined wedge 4, the inner slide 11 contacts with the inclined wedge 4 under the action of the compression spring 13 and expands and tightens the sleeve 8 from inside to outside in the radial direction, and the forming upper die 2 descends and completes the outer circle necking and shaping of the sleeve 8 together with the inner slide 11.

In the utility model, a compression spring mounting hole is formed in the inner lower part of an upper template 1, a compression spring 13 is mounted in the compression spring mounting hole, and the other end of the compression spring 13 is connected with a sliding plate 12. The top of the limiting column 5 is embedded into the inclined wedge fixing plate 9, the bottom of the limiting column 5 is embedded into the positioning plate 7, and the inner slide 11 completes necking shaping of the outer circle of the sleeve 8 with different lengths by replacing the limiting columns 5 with different lengths. The middle part of the top surface of the positioning plate 7 is provided with an inwards concave positioning groove 16, and the sleeve 8 to be formed is positioned in the positioning plate 7 through the positioning groove 16.

In the necking shaping tool, an upper die plate 1, a shaping upper die 2, an inner slide 11, a slide way 12, a compression spring 13, a contour screw 14 and an inner six screw M10 x 50 form an upper half part of the tool, wherein the shaping upper die 2 is fixed on the upper die plate 1 through the inner six screw, the inner slide 11 (6 blocks in total) is arranged on the slide plate 12 through a linear tension spring and can freely slide in the radial direction, the slide plate 12 is hung on the upper die plate 1 through the contour screw 14, and the slide plate 12 and the inner slide 6 can axially move in the shaping upper die 2 under the action of the compression spring 13; the wedge 4, the spacing post 5, the locating plate 7, the wedge fixed plate 9 constitutes frock lower mould part jointly, and the wedge 4 is installed on wedge fixed plate 9, fixes on spacing post 5 through hexagon socket head cap screw 10, and spacing post 5 passes through hexagon socket head cap screw 6 to be fixed on the locating plate 7.

The working process of the utility model is as follows: the sleeve 8 to be formed is placed in the positioning plate 7 for positioning, after the start button is started, the upper die part of the tool descends, the inner slide 11 firstly contacts with the inclined wedge 4 under the action of the compression spring 13 and expands radially from inside to outside to tightly support the sleeve 8, and then the outer circle necking and shaping of the sleeve 8 are completed together with the inner slide 11 by the lower die 2.

According to the utility model, the necking shaping of the outer circles of the sleeves with the same model and different lengths can be completed by replacing the limit posts 5 with different lengths; the utility model uses the stamping process to replace the edging process of the lathe, avoids the damage of the lathe screw rod, completes the roundness shaping of the stainless steel sleeve, solves the problem of out-of-tolerance roundness of the stainless steel sleeve, and has strong applicability.

The details not described in detail in this specification belong to the prior art known to those skilled in the art, all standard parts used by the standard parts can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, which are not described in detail.

The present utility model is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the utility model are intended to be equivalent substitutes and are included in the scope of the utility model.

Claims (7)

1. The utility model provides a telescopic throat plastic frock of stainless steel, includes frock cope match-die part and frock lower mould part, its characterized in that: the tool upper die part comprises an upper die plate (1), a forming upper die (2), an inner slide block (11), a sliding plate (12) and a compression spring (13), wherein the forming upper die (2) is fixed on the upper die plate (1) through an inner hexagon screw III (15), the inner slide block (11) and the sliding plate (12) are arranged in the forming upper die (2), the inner slide block (11) is arranged on the sliding plate (12) through a linear tension spring (3) and freely slides along the radial direction, the sliding plate (12) is hung on the upper die plate (1) through a contour screw (14), the compression spring (13) is arranged between the sliding plate (12) and the upper die plate (1), and the sliding plate (12) and the inner slide block (11) axially move in the forming upper die (2) under the action of the compression spring (13); the tool lower die part comprises a wedge (4), a limiting column (5), a positioning plate (7) and a wedge fixing plate (9), wherein the wedge (4) is arranged on the wedge fixing plate (9) and is fixed on the limiting column (5) through a second inner hexagonal screw (10), the limiting column (5) is fixed on the positioning plate (7) through a first inner hexagonal screw (6), a sleeve (8) to be formed is positioned in the positioning plate (7), an inclined plane I is arranged at the lower part of the inner side of the inner sliding block (11), the inclined plane I is connected with a second inclined plane II arranged on the outer peripheral surface of the wedge (4) in a matched mode, the inner sliding block (11) is expanded and tightly supported on the sleeve (8) along the radial direction through the wedge (4) when moving downwards along the axial direction, and the forming upper die (2) is pressed downwards to finish the necking shaping of the sleeve (8).

2. The necking shaping tool of the stainless steel sleeve as recited in claim 1, wherein: the lower part has offered compression spring mounting hole in cope match-plate pattern (1), compression spring (13) are installed in compression spring mounting hole, slide (12) are connected to compression spring (13) other end.

3. The necking shaping tool of the stainless steel sleeve as recited in claim 1, wherein: the inner sliding blocks (11) are at least three, the cross section of each inner sliding block (11) is fan-shaped, the at least three inner sliding blocks (11) are uniformly distributed along the circumferential direction, and the whole split inner sliding blocks are ring-shaped.

4. A necking shaping tool for a stainless steel sleeve as claimed in claim 3, wherein: six inner sliding blocks (11) are arranged, and the shape and the size are the same.

5. A necking shaping tool for a stainless steel sleeve as claimed in claim 3, wherein: the inner ring upper portion that constitutes after interior slider (11) amalgamation is the column, the inner ring lower part is the conical surface that is connected with slide wedge (4) outer circumference cooperation, interior slider (11) contact and by inside-out, radial expansion back that supports tight sleeve (8) with slide wedge (4) under compression spring (13) effect, take shape go up mould (2) decline and interior slider (11) and accomplish the excircle throat and the plastic of sleeve (8) jointly.

6. The necking shaping tool of the stainless steel sleeve as recited in claim 1, wherein: the utility model discloses a sliding sleeve type sliding sleeve is characterized in that the top of a limiting column (5) is embedded into a wedge fixing plate (9), the bottom of the limiting column (5) is embedded into a positioning plate (7), and an inner sliding block (11) completes necking shaping of the outer circle of a sleeve (8) with different lengths by replacing the limiting columns (5) with different lengths.

7. The necking shaping tool of the stainless steel sleeve as recited in claim 1, wherein: the middle part of the top surface of the positioning plate (7) is provided with an inwards concave positioning groove (16), and the sleeve (8) to be formed is positioned in the positioning plate (7) through the positioning groove (16).

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