CN219685513U - Vacuum fixture for aluminum die castings - Google Patents

Abstract

The utility model relates to the technical field of clamps, in particular to an aluminum die casting vacuum clamp, which comprises a shell, wherein the upper end of the shell is provided with a clamping mechanism, the clamping mechanism comprises a clamping block and a threaded base, a pressing plate is connected with a threaded column in a sliding way through a sliding groove, the threaded column penetrates through the pressing plate through the sliding groove, the outer wall of the pressing plate is fixedly connected with a sliding rod, the sliding rod is damaged to the left side through the cooperation of the shell and the clamping mechanism, the sliding rod drives the pressing plate to move, after the pressing plate moves to the upper side of a casting, the upper end of the pressing plate can be pressed against the casting to fix the casting in the mode, the condition that the outer wall of the casting is damaged or is not clamped is avoided, the limitation of clamping of the clamp is reduced, the first bevel gear is driven to rotate through the cooperation of the shell and a casting lifting mechanism, the first bevel gear drives the second bevel gear to rotate, the casting can be lifted out of a protective cover through the lifting block in the mode, the mode is convenient for operators to take the casting, and the workload of workers is reduced.

Description

Vacuum fixture for aluminum die castings

Technical Field

The utility model relates to the technical field of clamps, in particular to an aluminum die casting vacuum clamp.

Background

The fixture is used to fix the machining object in the correct position during the machining process to accept the construction or detection. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in the process may be referred to as a fixture.

For example, the high-pressure aluminum die casting vacuum clamp with the authorized publication number of CN218504296U is matched through the integral structure, and the aluminum die casting is initially fixed and held after vacuum pumping through the vacuum pump, so that the aluminum die casting is further and fixedly clamped conveniently, and the aluminum die casting is initially clamped after vacuum sucking, so that the effects of offset and edge tilting can not occur during secondary fixing and clamping. However, this high-pressure aluminum die casting vacuum clamp, the vacuum pump is with secondary fixture and vacuum groove suction simultaneously, after the air in the vacuum groove is inhaled vacuum, the slider is because the radius of aluminum die casting is different, the slider probably not supports the aluminum die casting yet, can't fix it, when the diameter of aluminum die casting is too big, the vacuum groove is probably not inhaled vacuum completely yet, the slider just supports the aluminum die casting yet, this can lead to the outer wall damage of aluminum die casting, the aforesaid has led to this vacuum clamp to have very high use limitation, this high-pressure aluminum die casting vacuum clamp simultaneously, need the workman to pull out it from between the slider when getting and putting the foundry goods, workman's work load has been increased.

Disclosure of Invention

The utility model aims to solve the problems that a vacuum groove and a sliding block can not clamp and fix an aluminum die casting at the same time, so that the clamp has high use limitation and is laborious to take out after casting and clamping.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an aluminium die casting vacuum clamp, includes the casing, the upper end of casing is equipped with fixture, fixture includes clamp splice and screw thread base, the middle part of clamp splice links to each other with the casing activity through round pin axle and support, the upper end of casing links to each other with screw thread base is fixed, screw thread base's upper end links to each other with screw thread post screw thread, the outer wall winding of screw thread post has the spring, the one end and the screw thread base of spring are fixed to each other, the other end and the clamp plate of spring are fixed to be linked to each other, the surface machining of clamp plate has the spout, the clamp plate passes through the spout and links to each other with screw thread post slip, the screw thread post runs through the clamp plate through the spout, the outer wall and the slide bar of clamp plate are fixed to be continuous.

Preferably, the lower end of the sliding rod is connected with the slideway in a sliding way, the outer wall of the clamping block is propped against the casting, and the upper surface of the casting is propped against the pressing plate.

Preferably, the inner wall of casing is equipped with foundry goods elevating system, foundry goods elevating system includes changes the handle, it links to each other through round pin axle and casing rotation to change the handle, the one end of changeing the handle runs through the casing and links to each other with first helical gear is fixed, first helical gear links to each other with the meshing of second helical gear, the inner wall and the threaded rod screw thread of second helical gear link to each other, the lower extreme and the sleeve of threaded rod cup joint mutually, telescopic lower extreme links to each other with the casing is fixed, the upper end and the lifter of threaded rod are fixed to link to each other, the lifter runs through the casing.

Preferably, the lower end of the slideway is fixedly connected with the shell, the inner wall of the shell is fixedly connected with the air pump through the bracket, and the air pump is fixedly connected with the air exhaust pipeline.

Preferably, the upper end of the shell is fixedly connected with the protective cover, and the upper end of the casting penetrates through the protective cover.

The vacuum clamp for the aluminum die casting has the beneficial effects that: through the cooperation of casing and fixture, the slide bar is removed to the left at the slide damage, and the slide bar drives the clamp plate and removes, and after the clamp plate removed the top of foundry goods, operating personnel rotated the screw thread post, and the screw thread post drives the clamp plate downwardly moving through the nut of upper end, compresses the spring simultaneously, can make the upper end compression foundry goods of clamp plate through above-mentioned mode, fixes it, can not appear the foundry goods outer wall damage or not have the condition of pressing from both sides tightly, has reduced the limitation of anchor clamps centre gripping.

Through the cooperation of casing and foundry goods elevating system, the commentaries on classics is driving first helical gear and is rotated, and first helical gear drives the second helical gear and rotate, and the second helical gear drives the threaded rod and goes up and down, and the threaded rod drives the lifting block and rises, can go out the protection casing with foundry goods lifting block through above-mentioned mode, and the operating personnel of being convenient for takes, has reduced workman's work load.

Drawings

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

FIG. 2 is a schematic front view of FIG. 1;

FIG. 3 is a schematic top cross-sectional view of FIG. 1;

fig. 4 is a schematic side cross-sectional view of fig. 1.

In the figure: 1. the device comprises a shell, 2, a clamping mechanism, 201, clamping blocks, 202, a threaded base, 203, a spring, 204, a threaded column, 205, a pressing plate, 206, a sliding rod, 207, a sliding groove, 3, a protective cover, 4, a casting lifting mechanism, 401, a rotating handle, 402, a first bevel gear, 403, a second bevel gear, 404, a threaded rod, 405, a lifting block, 406, a sleeve, 5, an air pump, 6, an air pumping pipeline, 7, a casting, 8 and a sliding way.

Detailed Description

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

referring to fig. 1-4: in this embodiment, an aluminum die casting vacuum fixture comprises a housing 1, the upper end of the housing 1 is provided with a clamping mechanism 2, the clamping mechanism 2 comprises a clamping block 201 and a threaded base 202, the middle part of the clamping block 201 is movably connected with the housing 1 through a pin shaft and a bracket, the clamping block 201 rotates on the housing 1, the upper end of the housing 1 is fixedly connected with the threaded base 202, the housing 1 is fixedly connected with the position of the threaded base 202, the upper end of the threaded base 202 is in threaded connection with a threaded column 204, the threaded column 204 rotates on the threaded base 202, the outer wall of the threaded column 204 is wound with a spring 203, the threaded column 204 is fixedly connected with the threaded base 202, the elasticity coefficient of the spring 203 is selected to meet the working requirement according to the actual requirement, one end of the spring 203 is fixedly connected with the threaded base 202, the position of one end of the spring 203 is fixedly connected with a pressing plate 205, the other end of the pressing plate 205 is fixedly connected with the position of the other end of the spring 203, a sliding groove 207 is machined on the surface of the pressing plate 205, the pressing plate 205 is slidably connected with the threaded column 204 through the sliding groove 207, the threaded column 204 slides on the pressing plate 205, the threaded column 204 penetrates through the sliding groove 207, the outer wall of the pressing plate 205 and the pressing plate 205 is fixedly connected with the sliding rod 206.

Referring to fig. 1, 2 and 4: in this embodiment, a vacuum fixture for aluminum die castings is provided, the inner wall of the casing 1 is provided with a casting lifting mechanism 4, the casting lifting mechanism 4 comprises a rotating handle 401, the rotating handle 401 is rotationally connected with the casing 1 through a pin shaft, the rotating handle 401 rotates on the casing 1, one end of the rotating handle 401 penetrates through the casing 1 and is fixedly connected with a first bevel gear 402, the rotating handle 401 drives the first bevel gear 402 to rotate, the first bevel gear 402 is meshed with a second bevel gear 403 and is connected with the second bevel gear 403, the first bevel gear 402 drives the second bevel gear 403 to rotate, the inner wall of the second bevel gear 403 is connected with a threaded rod 404 through threads, the second bevel gear 403 drives the threaded rod 404 to rotate, the lower end of the threaded rod 404 is sleeved with a sleeve 406, the threaded rod 404 moves in the sleeve 406, the lower end of the sleeve 406 is fixedly connected with the casing 1, the position of the sleeve 406 is fixed by the casing 1, the upper end of the threaded rod 404 is fixedly connected with a lifting block 405, and the lifting block 405 is driven by the threaded rod 405 to move, and the lifting block 405 penetrates through the casing 1.

Referring to fig. 1, 2, 3 and 4: in this embodiment, an aluminum die casting vacuum clamp, the lower extreme of slide bar 206 links to each other with slide 8 slip, slide bar 206 slides on slide 8, the outer wall of clamp splice 201 offsets tightly with foundry goods 7, clamp splice 201 offsets tightly foundry goods 7, the upper surface of foundry goods 7 offsets tightly with clamp plate 205, clamp plate 205 compresses tightly foundry goods 7, the lower extreme of slide 8 links to each other with casing 1 is fixed, casing 1 has fixed the position of slide 8, casing 1's inner wall passes through the support and links to each other with aspiration pump 5 fixedly, casing 1 has fixed the position of aspiration pump 5, the size selection of aspiration pump 5 according to actual demand can, aspiration pump 5 and aspiration pipeline 6 are fixed and are linked to each other, aspiration pump 5 has fixed the position of aspiration pipeline 6, casing 1's upper end and protection casing 3 are fixed and are linked to each other, casing 1 has fixed the position of protection casing 3, the upper end of foundry goods 7 runs through protection casing 3.

Working principle:

when the aluminum die casting vacuum clamp is used, firstly, a casting 7 is placed in a protective cover 3, then a clamping block 201 is abutted against the side wall of the casting, a worker pushes a slide bar 206, the slide bar 206 is damaged by a slide way 8 to move leftwards, the slide bar 206 drives a pressing plate 205 to move, after the pressing plate 205 moves to the upper side of the casting, an operator rotates a threaded column 204, the threaded column 204 drives the pressing plate 205 to move downwards through a nut at the upper end, simultaneously, a spring 203 is compressed, the upper end of the pressing plate 205 is pressed against the casting to fix the pressing plate, an external power supply of an air pump 5 is connected, the air pump 5 is started, and the air in a gap between the lifting block and the casting 7 is pumped out through an air pumping pipeline 6, so that the air pump 5 is in a vacuum state. Then processing foundry goods 7, after the processing is accomplished, fill gas in the gap, afterwards remove clamp plate 205 through above-mentioned mode, then operating personnel shakes the twist grip 401, and twist grip 401 drives first helical gear 402 and rotates, and first helical gear 402 drives second helical gear 403 and rotates, and second helical gear 403 drives threaded rod 404 and goes up and down, and threaded rod 404 drives lifting block 405 and rises, and lifting block 405 lifts foundry goods 7 out, and the operating personnel of being convenient for takes, has accomplished the centre gripping work of positive foundry goods 7.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims (5)

1. The utility model provides an aluminium die casting vacuum clamp, includes casing (1), its characterized in that: the upper end of casing (1) is equipped with fixture (2), fixture (2) are including clamp splice (201) and screw thread base (202), the middle part of clamp splice (201) links to each other with casing (1) activity through round pin axle and support, the upper end of casing (1) links to each other with screw thread base (202) are fixed, the upper end and the screw thread post (204) screw thread of screw thread base (202) link to each other, the outer wall winding of screw thread post (204) has spring (203), the one end and the screw thread base (202) of spring (203) are fixed to be linked to each other, the other end and clamp plate (205) of spring (203) are fixed to be linked to each other, the surface processing of clamp plate (205) has spout (207), clamp plate (205) are passed through spout (207) and are slided to link to each other with screw thread post (204), screw thread post (204) are passed through clamp plate (205) through spout (207), the outer wall and slide bar (206) are fixed to be linked to each other.

2. An aluminum die casting vacuum clamp as defined in claim 1, wherein: the lower end of the sliding rod (206) is connected with the slideway (8) in a sliding way, the outer wall of the clamping block (201) is propped against the casting (7), and the upper surface of the casting (7) is propped against the pressing plate (205).

3. An aluminum die casting vacuum clamp as defined in claim 1, wherein: the inner wall of casing (1) is equipped with foundry goods elevating system (4), foundry goods elevating system (4) are including changeing handle (401), it links to each other through the round pin axle with casing (1) rotation to change handle (401), the one end that changes handle (401) runs through casing (1) and links to each other with first helical gear (402) are fixed, first helical gear (402) links to each other with second helical gear (403) meshing, the inner wall of second helical gear (403) links to each other with threaded rod (404) screw thread, the lower extreme of threaded rod (404) cup joints with sleeve (406) mutually, the lower extreme of sleeve (406) links to each other with casing (1) is fixed, the upper end of threaded rod (404) links to each other with lifter (405) is fixed, lifter (405) runs through casing (1).

4. An aluminum die casting vacuum clamp as defined in claim 2, wherein: the lower extreme of slide (8) links to each other with casing (1) is fixed, the inner wall of casing (1) is through support and aspiration pump (5) is fixed continuous, aspiration pump (5) and bleed pipeline (6) are fixed continuous.

5. An aluminum die casting vacuum clamp as defined in claim 2, wherein: the upper end of the shell (1) is fixedly connected with the protective cover (3), and the upper end of the casting (7) penetrates through the protective cover (3).