Flange end face processing positioning jig

Abstract

The utility model provides a kind of flange end face processing positioning jig, is related to positioning tooling technical field, including base, base is cylindrical, there are several first inverted T-shaped grooves on base periphery, first inverted T-shaped groove is slidably arranged slider, fixed block is set on slider, the side of fixed block outward is provided with bayonet, disc is slidably arranged in base inner ring, disc periphery is provided with inclined T-shaped groove, slider extends downward and slidably passes through T-shaped groove. When using, flange is placed in bayonet, push disc towards base inner moves, the T-shaped groove of disc pushes base to move outward and drive fixed block to open, the bayonet of fixed block is compacted flange inner ring side wall and plays the role of fixed flange, operator operates grinder to polish flange end face, avoid the deformation of flange caused by traditional adoption of bench vice clamping, improve the qualified rate of flange processing.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, and more specifically, to a flange end face machining positioning fixture. Background Technology

[0002] like Figure 1 The flange shown is cylindrical in shape. After casting, the end face of the flange needs to be ground. Traditionally, the flange end face is ground manually by fixing it with a bench vise and then manually operating a grinding machine. Because the flange wall is thin, the flange is easily deformed during the manual clamping process with the bench vise, which can lead to the flange being scrapped. Therefore, there is an urgent need for a positioning fixture for fixing the flange. Utility Model Content

[0003] This utility model provides a flange end face machining positioning fixture, which aims to improve the technical problem that the existing flanges are prone to deformation during the clamping process, leading to the scrapping of the flanges.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a flange end face machining positioning fixture, comprising a base, the base being cylindrical, the base having a plurality of first inverted T-shaped grooves circumferentially formed, a slider being slidably mounted in the first inverted T-shaped grooves, a fixing block being mounted on the slider, a notch being provided on the outward side of the fixing block, a disc being slidably mounted on the inner ring of the base, the disc having inclined T-shaped grooves circumferentially formed, and the slider extending downward and slidably passing through the T-shaped grooves.

[0005] Furthermore, the slider includes a horizontal portion and an inclined portion. The horizontal portion has a second inverted T-shaped groove, and the fixing block is disposed in the second inverted T-shaped groove. The inclined portion has a T-shaped cross-section and passes through the T-shaped groove.

[0006] Furthermore, the fixing block includes an inverted T-shaped block and a positioning block placed in the second inverted T-shaped groove. The positioning block is installed on the inverted T-shaped block by bolts, and the positioning block has the bayonet opening.

[0007] Furthermore, the bayonet opening is L-shaped, and the vertical surface of the bayonet opening is an arc-shaped surface.

[0008] Furthermore, the disk is provided with several threaded grooves.

[0009] Furthermore, the base has several mounting holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model discloses a flange end face machining positioning fixture with a simple and ingenious design. It includes a cylindrical base with several inverted T-slots circumferentially arranged around it. A slider is slidably mounted on each T-slot, and a fixing block is mounted on the slider. A locking slot is located on the outward-facing side of the fixing block. A disc is slidably mounted on the inner ring of the base, with inclined T-slots circumferentially arranged on its circumference. The sliders extend downward and slidably pass through the T-slots. In use, the flange is placed in the locking slot, and the disc is pushed inwards towards the base. The T-slots of the disc push the base outwards, causing the fixing block to open. The locking slot of the fixing block presses against the inner ring sidewall of the flange, fixing it in place. The operator then uses a grinder to grind the flange end face, avoiding flange deformation caused by traditional bench vises and improving the flange machining pass rate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the flange structure;

[0014] Figure 2 This is a schematic diagram of the flange end face machining and positioning fixture clamping the flange according to this utility model;

[0015] Figure 3 This is a cross-sectional view of the flange end face machining and positioning fixture of this utility model;

[0016] Figure 4 This is a schematic diagram of the base structure of the flange end face machining and positioning fixture of this utility model;

[0017] Figure 5 This is a schematic diagram of the mating structure of the disc, slider, and fixing block of the flange end face machining positioning fixture of this utility model;

[0018] Figure 6 This is an exploded structural diagram of the disc, slider, and fixing block of the flange end face machining and positioning fixture of this utility model.

[0019] Explanation of main component symbols

[0020] 10. Base; 101. First inverted T-slot; 102. Slider; 1021. Second inverted T-slot; 103. Fixing block; 1031. Inverted T-block; 1032. Positioning block; 1033. Bayonet;

[0021] 20. Disc; 201. T-slot;

[0022] 30. Flange. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Example

[0027] Reference Figure 2-4As shown, this utility model discloses a flange 30 end face machining positioning fixture, including a base 10, which is cylindrical in shape. The base 10 has several first inverted T-shaped grooves 101 circumferentially opened. A slider 102 is slidably set in the first inverted T-shaped groove 101. A fixing block 103 is set on the slider 102. A slot 1033 is opened on the outward side of the fixing block 103. Specifically, the slider 102 includes a horizontal part and an inclined part. The horizontal part is slidably placed in the first inverted T-shaped groove 101, and the inclined part is placed in the inner ring of the base 10. The inclined part drives the horizontal part to slide along the first inverted T-shaped groove 101, thereby realizing the sliding of the slider 102 in the first inverted T-shaped groove 101.

[0028] Reference Figure 5-6 As shown, the horizontal portion has a second inverted T-groove 1021, and the fixing block 103 is disposed in the second inverted T-groove 1021. The inclined portion has a T-shaped cross section and passes through the T-groove 201. Specifically, the fixing block 103 includes an inverted T-shaped block 1031 and a positioning block 1032 placed in the second inverted T-groove 1021. The positioning block 1032 is installed on the inverted T-shaped block 1031 by bolts. The positioning block 1032 has a bayonet 1033. The inverted T-shaped block 1031 can slide along the second inverted T-groove 1021. The bolt passes through the positioning block 1032 and locks it in the inverted T-shaped block 1031, that is, the positioning block 1032 is fixed in the horizontal portion of the slider 102. By locking the T-shaped block and the positioning block 1032 in different positions in the second inverted T-groove 1021, the diameter of the fixing block 103 can be adjusted to suit flanges 30 of different diameters. Furthermore, the bayonet 1033 is L-shaped, and the vertical surface of the bayonet 1033 is an arc-shaped surface. The inner ring of the flange 30 is tightly attached to the arc-shaped surface of the bayonet 1033, and the horizontal surface of the bayonet 1033 provides support when the flange 30 is placed and ensures that the flange 30 is placed horizontally.

[0029] Reference Figure 5-6 As shown, a disc 20 is slidably mounted on the inner ring of the base 10. The disc 20 has an inclined T-slot 201 circumferentially formed. A slider 102 extends downwards and slidably passes through the T-slot 201. The inclined portion of the slider 102 is T-shaped and passes through the T-slot 201 of the disc 20. When the disc 20 is pushed towards the inner ring of the base 10, the inclined portion and horizontal portion of the slider 102 move outwards, causing the fixing blocks 103 to move in opposite directions. This causes the arc-shaped surface of the latch 1033 to press against the inner ring of the flange 30, thus securing it. When the disc 20 is removed from the base 10, it causes the inclined portion and horizontal portion of the slider 102 to move towards the inner ring, causing the arc-shaped surface of the latch 1033 to leave the inner wall of the flange 30, thus releasing the flange 30.

[0030] In other embodiments, the disc 20 is provided with several threaded grooves, which lock the disc 20 onto the push rod of the hydraulic cylinder. The movement of the disc 20 is controlled by the hydraulic cylinder to realize the opening and closing of the fixing block 103, that is, to realize the clamping or loosening of the flange 30.

[0031] In addition, the base 10 has several mounting holes, through which the entire lifting fixture can be installed on the grinding worktable, which facilitates grinding of the flange 30 end face and avoids the impact of vibration on dimensional accuracy during the grinding process.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flange end face machining positioning fixture, characterized in that; The device includes a base, which is cylindrical in shape. The base has several first inverted T-shaped grooves circumferentially open. A slider is slidably mounted on the first inverted T-shaped grooves. A fixing block is mounted on the slider. A retaining slot is opened on the outward side of the fixing block. A disc is slidably mounted on the inner circle of the base. The disc has inclined T-shaped grooves circumferentially open. The slider extends downward and slidably passes through the T-shaped grooves.

2. The flange end face machining positioning fixture according to claim 1, characterized in that: The slider includes a horizontal part and an inclined part. The horizontal part has a second inverted T-shaped groove. The fixing block is disposed in the second inverted T-shaped groove. The inclined part has a T-shaped cross section and passes through the T-shaped groove.

3. The flange end face machining positioning fixture according to claim 2, characterized in that: The fixing block includes an inverted T-shaped block and a positioning block placed in the second inverted T-shaped groove. The positioning block is installed on the inverted T-shaped block by bolts, and the positioning block has the bayonet opening.

4. The flange end face machining positioning fixture according to claim 1, characterized in that: The bayonet is L-shaped, and the vertical surface of the bayonet is an arc-shaped surface.

5. The flange end face machining positioning fixture according to claim 1, characterized in that: The disk is provided with several threaded grooves.

6. The flange end face machining positioning fixture according to claim 1, characterized in that: The base has several mounting holes for locking.

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