Rapid positioning device for precision casting

Abstract

The utility model relates to the technical field of casting positioning, and discloses a quick positioning device for precision casting, which comprises a positioning table and a plurality of groups of pressing strips, an iron plate is embedded and fixed on the surface of the positioning table through a clamping groove, a plurality of electromagnets are embedded and fixed in the positioning table below the iron plate, and the pressing strips are different in length. A rubber strip is fixedly attached to the surface of the bottom of each pressing strip, screws are vertically connected to the two sides of each pressing strip in a screwed mode, and iron sheets are fixedly welded to the tail ends of the screws. According to the technical scheme, the multiple pressing strips with different lengths are arranged, the rubber strips are attached and fixed to the bottoms of the pressing strips, the pressing strips can be rapidly locked in the mode that iron sheets at the tail ends of the screws on the two sides are attracted to the surface of an iron plate by electromagnets, and the screws on the two sides rotate to adjust the height of the pressing strips when the pressing strips are attracted and locked; and the length and the height can be flexibly adjusted, so that castings with different sizes or shapes can be quickly positioned and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry positioning technical field, concretely to a quick positioning device of precision casting. BACKGROUND

[0002] Precision casting is a kind of high-precision casting technology, is used to produce complex shape, size accurate metal parts, through making precision mould, melt metal is injected into mould cavity, and the finished product is obtained after cooling and solidification, and the technology is widely used in aerospace, automobile, medical instrument and other fields, precision casting has the advantages such as design flexibility, material selection is widely, finished product precision is high, can realize near net shape, reduces subsequent processing amount, improves production efficiency.

[0003] After pouring is completed, the casting needs to be taken out from the mould and cleaned, in this process, the position of the casting needs to be ensured stable, so as to carry out subsequent processing and detection, and in the subsequent processing and detection process of the casting, positioning and fixing also need to be carried out, so as to facilitate machining, grinding, polishing and other processes, and positioning is also needed in size detection, surface quality detection and other links, therefore, in the precision casting process, positioning is a crucial link, which is directly related to the precision and quality of the casting.

[0004] The traditional way is to use special clamps to position and fix the precision casting casting, and different shapes of castings need to use special-shaped clamps, which is not convenient for quickly positioning and fixing castings of different shapes or sizes. Therefore, we propose a kind of quick positioning device for precision casting. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of quick positioning device for precision casting, by being provided with multiple groups of different lengths of press bar, its bottom surface is fixed with rubber strip, can be quickly locked press bar by the way that both sides screw rod end iron sheet is absorbed on the surface of iron plate by electromagnet, and the height of press bar when being absorbed and locked can be adjusted by the rotation of both sides screw rod, length and height can be flexibly adjusted to be able to quickly position and fix the casting of different sizes or shapes, solve the problem proposed in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of quick positioning device for precision casting, including positioning table and press bar, the surface of positioning table is embedded with iron plate by clamping groove, multiple electromagnets are embedded and fixed in the positioning table below the iron plate;The press bar is provided with multiple groups of different lengths, the bottom surface of each press bar is fixed with rubber strip, and the both sides of the press bar are vertically connected with screw rod by screwing, and the end of screw rod is welded with iron sheet.

[0007] By adopting the technical scheme, the casting is first placed on the surface of the iron plate, the pressing strip with a proper length is selected for use, the pressing strip is arranged to cross over the casting and is suitable for being tightly locked, then the distance between the iron sheet and the iron plate is adjusted by rotating the screw rod, finally the iron sheet is attracted and tightly attached to the surface of the iron plate by the electromagnet, the rubber strip is deformed and tightly pressed against the surface of the casting, and the rapid positioning and fixing of the casting are realized.

[0008] Optionally, the rubber strip is internally and longitudinally provided with longitudinal holes.

[0009] By adopting the technical scheme, the longitudinal holes make the rubber strip more easily deformed and tightly pressed against the surface of the casting to lock the casting.

[0010] Optionally, the bottom surface of the iron sheet is fixed with a rubber pad, and the rubber pad is fixed on the surface of the iron sheet in a manner of adhesion.

[0011] By adopting the technical scheme, when the iron sheet is attracted and tightly attached to the surface of the iron plate, the rubber pad makes the iron sheet have a good anti-skid effect.

[0012] Optionally, the top of the screw rod is fixed with a rotating block, and the rotating block is welded and fixed on the top of the screw rod.

[0013] By adopting the technical scheme, the rotating block can conveniently rotate the screw rod to drive the iron sheet to ascend and descend.

[0014] Optionally, the two side surfaces of the pressing strip are both welded and fixed with screw blocks, and the screw rod is screwed through the pressing strip through the screw blocks.

[0015] Optionally, the bottom corners of the positioning table are all fixed with supporting blocks, and the supporting blocks are four in number.

[0016] By adopting the technical scheme, the four supporting blocks support the positioning table to a height for use.

[0017] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0018] 1. The technical scheme of the present application is provided with a plurality of groups of pressing strips with different lengths, the bottom of each group is fixed with a rubber strip, the pressing strip can be quickly locked by the iron sheet attracted on the surface of the iron plate by the electromagnet through the two screw rod ends, and the height of the pressing strip when being attracted and locked can be adjusted by rotating the two screw rods, so that the length and the height can be flexibly adjusted to quickly position and fix the casting with different sizes or shapes.

[0019] 2. The technical scheme of the present application is internally and longitudinally provided with a plurality of longitudinal holes in the rubber strip, so that the rubber strip is more easily deformed and tightly pressed against the surface of the casting to lock the casting. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Fig. 1 This is a schematic diagram of the overall structure of the precision casting rapid positioning device of this utility model;

[0022] Fig. 2 This is a detailed structural diagram of the pressure bar side of the precision casting rapid positioning device of this utility model;

[0023] Fig. 3 This is a partial cross-sectional structural diagram of the positioning platform of the precision casting rapid positioning device of this utility model.

[0024] In the diagram: 1. Positioning platform; 11. Slot; 12. Support block; 13. Electromagnet; 2. Iron plate; 3. Pressure strip; 31. Screw; 311. Rotating block; 312. Iron sheet; 313. Rubber pad; 32. Screw block; 33. Rubber strip; 331. Longitudinal hole. Detailed Implementation

[0025] Please see Figs. 1-3 This utility model provides a technical solution: a precision casting rapid positioning device, including a positioning platform 1 and a pressure bar 3. The four corners of the bottom of the positioning platform 1 are fixed with support blocks 12, and four support blocks 12 are provided. The positioning platform 1 is supported by the support blocks 12 at its four corners.

[0026] The upper surface of the positioning platform 1 is provided with a slot 11, and an iron plate 2 is embedded and fixed to the surface of the positioning platform 1 through the slot 11. Multiple electromagnets 13 are embedded and fixed inside the positioning platform 1 located below the iron plate 2. When the electromagnets 13 are energized, they become magnetic, and the iron plate 2 also becomes magnetic.

[0027] The pressure strip 3 is provided with multiple sets of different lengths. Each pressure strip 3 has a rubber strip 33 attached to its bottom surface. Both sides of the pressure strip 3 are vertically connected to screw rods 31 by screwing. Both sides of the pressure strip 3 are welded and fixed with screw blocks 32. The screw rods 31 pass through the pressure strip 3 after being screwed through the screw blocks 32. The end of the screw rods 31 is welded and fixed with iron plates 312.

[0028] In use, the casting is placed flat on the surface of the iron plate 2. Then, a pressure strip 3 of appropriate size is selected and placed across the casting to be pressed and locked. The rubber strip 33 is pressed against the surface of the casting to keep the pressure strip 3 horizontal. Then, the screws 31 on both sides are rotated, causing the iron plate 312 at the bottom to approach the surface of the iron plate 2. When the rubber strip 33 is not deformed, there is a small gap between the iron plate 312 and the surface of the iron plate 2. Then, the electromagnet 13 is activated to make it magnetic, so that the iron plate 2 is magnetically attracted downward to the iron plate 312 and it is pressed against the surface of the iron plate 2. This causes the pressure strip 3 to drop in height, thereby deforming the rubber strip 33 and pressing it against the surface of the casting, thus quickly locking the casting. Since there are multiple sets of pressure strips 3 of different lengths, and the support height of the screws 31 on the pressure strips 3 can be adjusted at will, the appropriate length and number of pressure strips 3 can be selected according to the size and shape of the casting to lock the casting in the above manner.

[0029] A rotating block 311 is fixed to the top of the screw 31. The rotating block 311 is welded and fixed to the top of the screw 31. The screw 31 can be rotated by the rotating block 311. The rubber strip 33 has longitudinal holes 331 inside. Multiple longitudinal holes 331 are evenly arranged. The longitudinal holes 331 make it easier for the rubber strip 33 to be deformed and pressed against the surface of the casting to lock it. A rubber pad 313 is fixed to the bottom surface of the iron sheet 312. The rubber pad 313 is fixed to the surface of the iron sheet 312 by adhesion. When the iron sheet 312 is magnetically attracted and pressed against the surface of the iron plate 2, the rubber pad 313 gives it a good anti-slip effect.

[0030] In use, connect the electromagnet 13 to the power supply via the control switch, place the casting flat on the surface of the iron plate 2, and then select a pressure bar 3 of appropriate size to be used, placing it across the casting to be clamped and locked in place. The rubber strip 33 is pressed against the surface of the casting to keep the pressure bar 3 horizontal. Then, the rotating block 311 drives the screws 31 located on both sides to rotate, causing the screws 31 to move the bottom iron plate 312 closer to the surface of the iron plate 2. When the rubber strip 33 is not deformed, there is a small gap between the iron plate 312 and the surface of the iron plate 2. Then, start the operation. When the electromagnet 13 is energized, it becomes magnetic, causing the iron plate 2 to magnetically attract the iron sheet 312 downwards. The iron sheet 312 then contacts the surface of the iron plate 2 through the rubber pad 313, causing the pressure strip 3 to drop in height. This causes the rubber strip 33 to be deformed and pressed against the surface of the casting, thus quickly locking the casting. Depending on the size and shape of the casting, an appropriate length and number of pressure strips 3 can be selected to position and lock the casting using the above method, facilitating subsequent processing or inspection. After processing or inspection, the electromagnet 13 is de-energized, allowing the pressure strip 3 to be removed and the casting to be taken away.

Claims

1. A precision casting rapid positioning device, comprising a positioning table (1) and a pressure bar (3), characterized in that: The surface of the positioning platform (1) is fixed with an iron plate (2) embedded in the slot (11), and multiple electromagnets (13) are embedded in the positioning platform (1) located below the iron plate (2). The pressure strip (3) is provided with multiple sets of different lengths. Each pressure strip (3) has a rubber strip (33) attached to its bottom surface. Both sides of the pressure strip (3) are vertically connected to a screw (31) by screwing. The end of the screw (31) is welded and fixed with an iron sheet (312).

2. The rapid positioning device for precision casting according to claim 1, characterized in that: The rubber strip (33) has longitudinal holes (331) inside, and multiple longitudinal holes (331) are evenly arranged.

3. The rapid positioning device for precision casting according to claim 1, characterized in that: A rubber pad (313) is fixed to the bottom surface of the iron sheet (312), and the rubber pad (313) is fixed to the surface of the iron sheet (312) by an adhesive method.

4. The rapid positioning device for precision casting according to claim 1, characterized in that: A rotating block (311) is fixed to the top of the screw (31), and the rotating block (311) is welded and fixed to the top of the screw (31).

5. The rapid positioning device for precision casting according to claim 1, characterized in that: Both sides of the pressure strip (3) are welded and fixed with screw blocks (32), and the screw (31) passes through the pressure strip (3) after being screwed through the screw blocks (32).

6. The rapid positioning device for precision casting according to claim 1, characterized in that: The positioning platform (1) has four support blocks (12) fixed at its bottom corners. There are four support blocks (12).

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