Automatic clamping fixture for cleaning special-shaped automobile aluminum casting

Abstract

The automatic clamping fixture comprises a bearing platform which is arranged on a machine tool and used for supporting the automobile aluminum casting and a plurality of sets of spray heads arranged on the bearing platform, and the bearing platform is provided with an adaptive structure which is self-adaptive to the shape of the aluminum casting and is used for clamping and cleaning the aluminum casting. The corresponding circumference structure comprises two groups of clamping assemblies which are arranged on the bearing platform and are symmetrical about the central axis of the bearing platform, each clamping assembly comprises a transverse position seat which freely moves in the horizontal direction, the same-position plate comprises an integrally-formed outwards-extending part, and the outwards-extending part is provided with a plurality of groups of arc pressing assemblies which are used for abutting against the outer surface of the aluminum casting. The clamping device is simple in structure and capable of flexibly adapting to aluminum castings of different sizes and shapes, so that stable multi-point clamping is achieved, the stability and reliability in the clamping process are guaranteed, no matter how the surface shape of the aluminum casting changes, the clamping efficiency can be effectively improved, the problem of unstable fixing caused by shape difference is solved, and the cleaning effect is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum casting fixtures, in particular to an automatic clamping fixture for cleaning special-shaped automobile aluminum castings. Background Art

[0002] In the modern automobile manufacturing process, aluminum castings are widely used in the manufacture of automobile engines, gearboxes, chassis and other key parts due to their advantages such as light weight, high strength and corrosion resistance. However, since oil stains, metal chips and other pollutants are inevitably generated during the production process, the cleaning of aluminum castings has become an important link to ensure the quality and reliability of parts.

[0003] Chinese patent (publication number: CN114523318B), the scheme specifically includes an X-axis screw slide and a Y-axis screw slide, a supporting sleeve is fixedly installed on the movable plate of the Y-axis screw slide, the present invention is designed to be provided with a Y-axis screw slide and an X-axis screw slide at the bottom of the supporting sleeve to form a "cross" structure, which can drive the fixture to move on the X and Y axes, and cooperate with the transmission component, the rotating component, the clamping component and the angle adjustment component, effectively solving the problem that the current chassis bracket aluminum casting processing fixture cannot change the position between the fixed end clamped in the chassis bracket aluminum casting fixture and the part, the clamping angle and the clamping height according to the different sizes, shapes and curvature of the chassis bracket aluminum casting folding edge of the chassis bracket aluminum casting, so as to realize that the clamping claws on the fixture can accurately clamp different aluminum castings to meet different processing requirements.

[0004] During use, the aluminum casting clamp in the above patent is difficult to adaptively achieve effective clamping of aluminum castings of different sizes due to the large differences in sizes of different aluminum castings. In addition, the shapes of aluminum castings are usually complex, and different parts of the same aluminum casting may have significant size differences, making it difficult to ensure sufficient fit between multiple clamping points and the aluminum casting, thereby affecting the stability and reliability of the clamping. At the same time, the cleaning process of the aluminum casting may involve cleaning the inside of the molding hole, and due to the deviation in the fixed position of the aluminum casting, the cleaning may not be thorough, affecting the cleaning effect. In order to solve the above problems, an automatic clamping fixture for cleaning special-shaped automotive aluminum castings is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic clamping fixture for cleaning special-shaped automobile aluminum castings, which has the advantage of flexibly adapting to aluminum castings of different sizes and shapes, and solves the problem of difficulty in ensuring sufficient fit between multiple clamping points and aluminum castings, thereby affecting the clamping stability and reliability.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic clamping fixture for cleaning special-shaped automobile aluminum castings, comprising a support platform on a machine tool for supporting automobile aluminum castings and a plurality of nozzles arranged thereon, wherein the support platform is provided with a surrounding structure that adapts to the shape of the aluminum casting and clamps and cleans the aluminum castings; The circumferential structure includes two groups of clamping components arranged on the support platform and symmetrically arranged with respect to the central axis of the support platform, the clamping components include a horizontal seat that can move freely in the horizontal direction, the horizontal seat is provided with a corresponding plate that can move horizontally synchronously with the horizontal seat, the corresponding plate includes an integrally formed extension, and the extension is provided with a plurality of groups of arc pressure components for contacting with the outer surface of the aluminum casting; The arc pressure components in the two groups of the clamping components are arranged opposite to each other and clamp the aluminum casting together. A rectangular groove for the support platform to pass through is opened on the extension part. The extension part is also provided with multiple groups of fixed punching components for adjusting the direction of a single group of nozzles. The horizontal seat is also provided with a cleaning component for washing the aluminum casting after the two-component clamping component fixes the aluminum casting; The arc pressure assembly comprises a U-shaped clamp seat fixed with bolts between the extension part, a main arc seat is fixedly rotated on the U-shaped clamp seat, and a plurality of micro-clamp blocks which are in compression contact with the outer surface of the aluminum casting are arranged on the main arc seat.

[0007] Preferably, the main arc seat has two groups of secondary arc seats that rotate on an axis away from one end face of the U-shaped clamp seat, each group of secondary arc seats has multiple groups of graded arc seats that rotate on an axis on a straight line surface, and multiple groups of micro-level clamps rotate on an axis on each group of graded arc seats away from the secondary arc seat.

[0008] Preferably, the clamping assembly further comprises a threaded rod driven by a motor and freely rotating in a vertical direction, the threaded rod is fixedly rotated on the support platform, an internal threaded barrel is threadedly connected to the threaded rod, the horizontal seat is fixedly rotated on the internal threaded barrel, and a clamping assembly is provided on the horizontal seat to limit the synchronous rotation of the internal threaded barrel and the threaded rod; The transverse seat is provided with a transverse sliding groove for sliding connection of the corresponding plate.

[0009] Preferably, the clamping assembly includes a clamping plate arranged on the horizontal seat, and the horizontal seat is provided with a receiving groove for sliding connection of the clamping plate, and a plurality of sets of yielding springs are arranged in the receiving groove, and the two ends of the yielding springs are respectively fixedly connected to the clamping plate and the horizontal seat, and the internal threaded cylinder is provided with a clamping groove used in conjunction with the clamping plate; A positioning pin is fixedly connected to one side of the clamping plate facing the same position plate, and a V-shaped positioning groove for the positioning pin to be slidably connected is provided on the same position plate.

[0010] Preferably, the fixed punch assembly includes an extension rod arranged on the extension part, and a groove body is provided on the extension part for the extension rod to slide horizontally, and a swing ball is provided at one end of the extension rod away from the extension part, and the swing ball is fixedly connected to the nozzle; The extension rod is provided with a ball cavity for sliding connection of the swinging ball, and a locking bolt is threadedly connected to the extension rod, and the locking bolt is in contact connection with the swinging ball; The extending portion is fixedly connected with a lateral pipeline, and a plurality of groups of hoses are fixedly passed through the lateral pipeline, and each group of hoses is fixedly passed through a swinging ball in a group of fixed impact assemblies.

[0011] Preferably, the cleaning assembly includes a reflux cylinder fixedly connected to the horizontal seat, the liquid outlet end of the reflux cylinder being integrally formed is gas-connected to the lateral pipeline, a piston plate reciprocating in the horizontal direction is provided in the reflux cylinder, and the outer peripheral surface of the piston plate is in sliding contact with the inner wall of the reflux cylinder.

[0012] Preferably, a bottom sealing box for receiving cleaning liquid is fixedly connected below the support platform, a filter plate is fixedly connected to the inner wall of the bottom sealing box, and the bottom sealing box is in gas communication with the liquid inlet end of the reflux cylinder integrally formed; The support platform is provided with a plurality of groups of guide holes arranged in an array, and the plurality of groups of guide holes are communicated with the bottom sealing box.

[0013] Preferably, the cleaning assembly further comprises a hollow cylinder sleeved on the threaded rod, the hollow cylinder is coaxially fixed on the internal threaded cylinder, a worm is fixedly sleeved on the hollow cylinder, the worm is meshingly connected with a worm wheel, the worm wheel is fixedly axially rotated on the horizontal seat, and an axial disk is coaxially fixed on the worm wheel; A swing rod is arranged on the axial position disc for fixed axis rotation, one end of the piston plate facing the axial position disc is fixedly connected with a connecting rod, and one end of the swing rod away from the axial position disc is fixed axis rotation on the connecting rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can flexibly adapt to aluminum castings of different sizes and shapes by setting a peripheral structure. The multi-stage arc seat and micro-stage clamping block design in the clamp allow it to be adaptively adjusted on the surface of the aluminum casting, thereby achieving stable multi-point clamping and ensuring stability and reliability during the clamping process. No matter how the surface shape of the aluminum casting changes, the clamping efficiency can be effectively improved, and the problem of unstable fixation caused by shape differences can be reduced, thereby significantly improving the cleaning effect.

[0015] 2. The present invention can perform precise positioning and directional spraying according to the positions of the formed holes on the aluminum castings by setting a cleaning component. The design of the fixed-punch component ensures the stability of the orientation of the nozzle, avoids arbitrary changes in the position of the nozzle during the cleaning process, ensures comprehensive cleaning of complex aluminum castings, and can effectively reduce cleaning blind spots and dead angles, ensuring that every part of the aluminum casting can be thoroughly cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom sealing components of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the components where the collocation plate of the present invention is located; Figure 5 This is a schematic diagram of the components where the shaft position disk of the present invention is located; Figure 6 For the present invention Figure 4 Enlarged view of point B in the middle; Figure 7 This is a schematic diagram of the components where the card board of the present invention is located; Figure 8 This is a schematic diagram of the components where the extension rod of the present invention is located; Fig. 9 This is a schematic diagram of the components where the main arc seat of the present invention is located; Fig.10 For the present invention Fig. 9 Enlarged view of center C.

[0017] In the figure: 1, support platform; 2, bottom sealing box; 3, threaded rod; 4, internal threaded cylinder; 5, horizontal seat; 6, yield spring; 7, clamping plate; 8, clamping groove; 9, same position plate; 901, extension; 10, positioning pin; 11, V-shaped positioning groove; 12, hollow cylinder; 13, worm; 14, worm wheel; 15, axial disk; 16, rocker; 17, connecting rod; 18, piston plate; 19, reflux cylinder; 20, extension rod; 21, lateral pipeline; 22, swinging sphere; 23, nozzle; 24, hose; 25, U-shaped clamp seat; 26, primary arc seat; 27, secondary arc seat; 28, graded arc seat; 29, micro clamp block; 30, guide hole; 31, filter plate; 32, locking bolt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 10 The present invention provides a technical solution: an automatic clamping fixture for cleaning special-shaped automobile aluminum castings, comprising a support 1 on a machine tool for supporting automobile aluminum castings and a plurality of nozzles 23 arranged thereon, wherein the support 1 is provided with a surrounding structure that can adapt to the shape of the aluminum casting and clamp and clean the aluminum casting; The circumferential structure includes two groups of clamping components arranged on the support platform 1 and symmetrically arranged with respect to the central axis of the support platform 1. The clamping components include a horizontal seat 5 that moves freely in the horizontal direction, and a horizontal plate 9 that moves synchronously with the horizontal seat 5 is provided on the horizontal seat 5. The horizontal plate 9 includes an integrally formed extension 901, and the extension 901 is provided with a plurality of arc pressure components for contacting with the outer surface of the aluminum casting. The arc pressure components in the two groups of the clamping components are arranged opposite to each other and clamp the aluminum casting together. A rectangular groove for the support platform 1 to pass through is opened on the extension part 901. The extension part 901 is also provided with multiple groups of fixed punching components for adjusting the direction of the single group of nozzles 23; The horizontal seat 5 is also provided with a cleaning component for washing the aluminum casting after the two-component clamping component fixes the aluminum casting.

[0020] like Figure 1 and Figure 2 As shown, when cleaning the automobile aluminum casting, the aluminum casting is placed between the base 1 and multiple sets of arc pressure components arranged relatively, and the two sets of clamping components are driven synchronously by driving the peripheral components to operate, and the transverse seats 5 in the two sets of clamping components can move synchronously toward each other in the horizontal direction, thereby driving the arc pressure assembly arranged on the extension part 901 to move toward the aluminum casting until the arc pressure assembly completes the clamping purpose of the aluminum casting.

[0021] At the same time, due to the different shapes and sizes of different types of aluminum castings, by setting up two groups of clamping assemblies, after multiple groups of arc pressure assemblies complete the clamping purpose of the aluminum casting, the horizontal position of its horizontal seat 5 will no longer continue to move horizontally, and after the horizontal seat 5 stops moving, the cleaning assembly can be driven to run, so as to realize the cleaning process of the aluminum casting through the nozzle 23.

[0022] It should be noted that, in actual use, the spacing of the arc pressure components on the same extension portion 901 can be adjusted according to the size of the aluminum casting to be cleaned, and effective fixation of the aluminum casting can be ensured. At the same time, a pad to limit the aluminum casting can be provided at the end of the base 1 away from the horizontal seat 5 to ensure that the holes formed on the aluminum casting are approximately in the same position after being fixed.

[0023] Furthermore, in actual use, the horizontal position of the nozzle 23 on the extension part 901 can be freely adjusted according to the position of the formed holes on the aluminum casting to be cleaned, and the direction of the nozzle 23 corresponding to the hole position can be adjusted in combination with the fixed punch assembly to avoid the problem of incomplete cleaning.

[0024] In one of the more preferred embodiments, the arc pressure assembly includes a U-shaped clamp seat 25 fixed by bolts to the extension portion 901, a main arc seat 26 is provided on the U-shaped clamp seat 25 for fixed axis rotation, two groups of secondary arc seats 27 are provided for fixed axis rotation on one end face of the main arc seat 26 away from the U-shaped clamp seat 25, multiple groups of graded arc seats 28 are provided for fixed axis rotation on the straight line surface of each group of secondary arc seats 27, and a micro-clamp block 29 is provided for fixed axis rotation on the straight line surface of each group of graded arc seats 28 away from the secondary arc seat 27, and the micro-clamp block 29 is in extrusion contact with the outer surface of the aluminum casting.

[0025] like Figure 1 , Figure 2 , Fig. 9 and Fig.10 As shown, when the U-shaped clamp seat 25 moves in the horizontal direction following the extension portion 901, the micro-clamp block 29 arranged thereon gradually approaches the surface of the aluminum casting and finally fits with the aluminum casting. At the same time, when the micro-clamp blocks 29 of the multiple groups of arc pressure assemblies arranged relatively to each other are in contact with the surface of the aluminum casting, the horizontal movement process of the U-shaped clamp seat 25 will drive the main-stage arc seat 26 to adaptively rotate according to the shape difference of the corresponding position of the U-shaped clamp seat 25, so as to adapt to the shape difference of a larger area of ​​the aluminum casting.

[0026] At the same time, the secondary arc seat 27 is rotatably set on the main arc seat 26. When the micro-clamp 29 contacts the surface of the aluminum casting, the secondary arc seat 27 can adapt to the shape difference in the smaller area of ​​the aluminum casting through the rotation process. In addition, each group of secondary arc seats 27 is provided with a graded arc seat 28. The graded arc seat 28 can freely rotate to adapt to the shape difference of the aluminum casting in the small area corresponding to itself. At the same time, the micro-clamp 29 is rotatably set on the graded arc seat 28, and a rubber protrusion is provided on the straight surface of the micro-clamp 29. Then, the micro-clamp 29 and the rubber protrusion thereon can adaptively adapt to the tiny shape difference of the clamping point position of the aluminum casting. Taking the clamping point shape as a curve as an example, when the clamping point is fixed, its multiple groups of micro-clamps 29 can deflect freely according to the curve of the clamping point to ensure that they can contact the clamping point, thereby ensuring the stability of the aluminum casting.

[0027] On the basis of the arc pressure assembly embodiment, the clamping assembly includes a threaded rod 3 driven by a motor and freely rotating in the vertical direction, the threaded rod 3 is fixedly rotated on the support platform 1, the threaded rod 3 is threadedly connected with an internal threaded tube 4, the horizontal seat 5 is fixedly rotated on the internal threaded tube 4, and the horizontal seat 5 is provided with a clamping assembly for limiting the synchronous rotation of the internal threaded tube 4 and the threaded rod 3; The transverse seat 5 is provided with a transverse sliding groove for the corresponding plate 9 to be slidably connected.

[0028] The clamping assembly includes a clamping plate 7 arranged on the horizontal seat 5, and the horizontal seat 5 is provided with a receiving groove for sliding connection of the clamping plate 7, and a plurality of groups of yielding springs 6 are arranged in the receiving groove, and the two ends of the yielding springs 6 are respectively fixedly connected to the clamping plate 7 and the horizontal seat 5, and the internal threaded tube 4 is provided with a clamping groove 8 used in conjunction with the clamping plate 7; A positioning pin 10 is fixedly connected to one side of the clamping plate 7 facing the alignment plate 9 , and a V-shaped positioning groove 11 for the positioning pin 10 to be slidably connected is provided on the alignment plate 9 .

[0029] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, the threaded rod 3 in the two-group clamping assembly is driven by a motor to rotate synchronously, so as to drive the transverse seat 5 in the two-group clamping assembly to move synchronously toward or away from each other in the horizontal direction. At the same time, the isotropic plate 9 is arranged on the transverse seat 5, so as to drive the isotropic plate 9 to move synchronously horizontally with the transverse seat 5. When the multiple groups of arc pressure assemblies on the extension part 901 complete the fixation of the aluminum casting, the extension part 901 cannot continue to move in the horizontal direction due to the obstruction of the aluminum casting. At this time, when the threaded rod 3 continues to rotate, it can drive the transverse seat 5 to continue to move a certain distance along the movement direction, thereby driving relative displacement between the transverse seat 5 and the isotropic plate 9.

[0030] At the same time, the positioning pin 10 fixed on the card plate 7 is slidably connected to the isotropic plate 9 through the V-shaped positioning groove 11. When the transverse seat 5 and the isotropic plate 9 are relatively displaced, the positioning pin 10 can slide on the V-shaped positioning groove 11 to drive the card plate 7 to move in the accommodating groove and squeeze the yield spring 6 to drive the yield spring 6 to undergo compression deformation, thereby driving the card plate 7 to disengage from the card groove 8 opened on the internal threaded tube 4.

[0031] Among them, in the initial state, the isoplate 9 cannot rotate due to the restriction of the base 1, and the isoplate 9 is set on the transverse seat 5, and then when the clamping plate 7 is inserted into the slot 8, its internal threaded tube 4 cannot rotate synchronously with the threaded rod 3 due to the restriction of the clamping plate 7, and then the rotation process of the threaded rod 3 in the initial state will only change the horizontal position of the transverse seat 5 and the isoplate 9, but as the multiple sets of arc pressure components on the extension part 901 complete the fixing purpose of the aluminum casting, and then drive the clamping plate 7 out of the slot 8, the internal threaded tube 4 will no longer be restricted by the clamping plate 7, and the internal threaded tube 4 will rotate synchronously with the threaded rod 3, and the horizontal position of the transverse seat 5 and the isoplate 9 will not change.

[0032] On the basis of the embodiment of the split clamp assembly, the fixed punch assembly includes an extension rod 20 arranged on the extension part 901, and a groove body 1 for the extension rod 20 to slide horizontally is opened on the extension part 901, and a swing ball 22 is provided at one end of the extension rod 20 away from the extension part 901, and the swing ball 22 is fixedly connected to the nozzle 23; The extension rod 20 is provided with a ball cavity for sliding connection of the swing ball 22, and a locking bolt 32 is threadedly connected to the extension rod 20, and the locking bolt 32 is in contact connection with the swing ball 22; The extending portion 901 is fixedly connected with a lateral pipe 21 , and a plurality of groups of hoses 24 are fixedly passed through the lateral pipe 21 . Each group of hoses 24 is fixedly passed through a group of swinging balls 22 in a fixed impact assembly.

[0033] The cleaning assembly includes a reflux cylinder 19 fixedly connected to the horizontal seat 5, the liquid outlet end of the reflux cylinder 19 is integrally formed with the gas in communication with the lateral pipe 21, a piston plate 18 is provided in the reflux cylinder 19 which reciprocates in the horizontal direction, and the outer peripheral surface of the piston plate 18 is in sliding contact with the inner wall of the reflux cylinder 19.

[0034] The cleaning assembly also includes a hollow cylinder 12 sleeved on the threaded rod 3, the hollow cylinder 12 is coaxially fixed on the internal threaded cylinder 4, a worm 13 is fixedly sleeved on the hollow cylinder 12, the worm 13 is meshedly connected with a worm wheel 14, the worm wheel 14 is fixedly rotated on the horizontal seat 5, and an axial disk 15 is coaxially fixed on the worm wheel 14; A swing rod 16 is fixedly rotatable on the axial disk 15 , a connecting rod 17 is fixedly connected to one end of the piston plate 18 facing the axial disk 15 , and an end of the swing rod 16 away from the axial disk 15 is fixedly rotatable on the connecting rod 17 .

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 8 As shown, when the internal threaded cylinder 4 rotates synchronously with the threaded rod 3, it can drive the hollow cylinder 12 coaxially arranged therewith to rotate synchronously, and drive the worm 13 fixed on the hollow cylinder 12 to rotate in the vertical direction, wherein the worm 13 is meshingly connected with the worm wheel 14, and then the rotation process of the internal threaded cylinder 4 can drive the worm wheel 14 and the axial position disk 15 coaxially arranged therewith to rotate synchronously in the horizontal direction.

[0036] At the same time, a reflux cylinder 19 is provided on the transverse seat 5, and a piston plate 18 is slidably provided in the reflux cylinder 19, a connecting rod 17 is fixedly provided on the piston plate 18, and a freely swinging rocker arm 16 is provided between the connecting rod 17 and the axial disk 15, so that when the axial disk 15 continues to rotate, the rocker arm 16 can be driven to deflect back and forth, and the piston plate 18 can be driven to reciprocate in the reflux cylinder 19 through the connecting rod 17.

[0037] Among them, when the piston plate 18 continues to make horizontal reciprocating motion in the reflux cylinder 19, it can repeatedly extract cleaning liquid from the bottom sealing box 2 which is gas-connected with the reflux cylinder 19, and push the cleaning liquid into the lateral pipe 21 through the liquid outlet end integrally formed with the reflux cylinder 19. At the same time, the nozzle 23 is connected with the lateral pipe 21 through the hose 24, and then the cleaning liquid is finally sprayed onto the aluminum casting through the nozzle 23.

[0038] During actual use, a group of one-way valves are respectively provided on the liquid inlet and liquid outlet ends of the integrally formed reflux cylinder 19, and the valve ports of the two groups of one-way valves are opposite, so that the flow direction of the cleaning liquid is limited by the two groups of one-way valves, so that when the piston plate 18 is driven to reciprocate in the reflux cylinder 19, the cleaning liquid can be transported to the reflux cylinder 19 through the bottom sealing box 2, and finally the cleaning liquid is sprayed out from the nozzle 23.

[0039] It should be noted that, in actual use, due to the different positions of the molded holes on different aluminum castings, the position of the nozzle 23 is dynamically adjusted by changing the horizontal position of the extension rod 20 on the extension portion 901 so that it can correspond to the molded holes on the aluminum casting to ensure the cleaning effect of the aluminum casting. At the same time, the orientation of the nozzle 23 is changed by rotating the swing sphere 22, and the locking bolt 32 is driven by rotating the locking bolt 32 to squeeze and contact the swing sphere 22, thereby avoiding the phenomenon of arbitrary changes in the position of the nozzle 23, and the nozzle 23 can be driven to accurately face the dead corner area in the aluminum casting that is difficult to clean, so as to further improve the cleaning effect.

[0040] Moreover, after a single cleaning operation is completed, the used cleaning liquid and the debris such as metal chips and oxide scale carried therein flow through the guide hole 30 to the bottom sealing box 2 below, and the filter plate 31 arranged in the bottom sealing box 2 intercepts the fixed debris, wherein the bottom sealing box 2 is connected to the reflux drum 19, thereby realizing multiple uses of cleaning.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic clamping fixture for cleaning special-shaped automobile aluminum castings, comprising a support (1) on a machine tool for supporting the automobile aluminum castings and a plurality of nozzles (23) arranged thereon, characterized in that: The support platform (1) is provided with a surrounding structure that adapts to the shape of the aluminum casting and clamps and cleans the aluminum casting; The circumferential structure comprises two groups of clamping components arranged on the support platform (1) and symmetrically arranged with respect to the central axis of the support platform (1), the clamping components comprising a horizontal seat (5) freely movable in the horizontal direction, the horizontal seat (5) being provided with a corresponding plate (9) movable horizontally synchronously therewith, the corresponding plate (9) comprising an integrally formed extension portion (901), the extension portion (901) being provided with a plurality of groups of arc pressure components for contacting with the outer surface of the aluminum casting; The arc pressure assemblies in the two groups of clamping assemblies are arranged opposite to each other and jointly clamp and fix the aluminum casting. A rectangular groove for the support platform (1) to pass through is provided on the extension part (901). The extension part (901) is also provided with a plurality of fixed punching assemblies for adjusting the direction of a single group of nozzles (23); The horizontal seat (5) is also provided with a cleaning component for washing the aluminum casting after the two-component clamping component fixes the aluminum casting; The arc pressure assembly comprises a U-shaped clamp seat (25) fixed to the extension portion (901) by bolts, a main-stage arc seat (26) is fixedly rotatable on the U-shaped clamp seat (25), and the main-stage arc seat (26) is provided with a plurality of groups of micro-stage clamp blocks (29) that are in extrusion contact with the outer surface of the aluminum casting.

2. The automatic clamping fixture for cleaning special-shaped automobile aluminum castings according to claim 1 is characterized in that: The primary arc seat (26) has two groups of secondary arc seats (27) that are rotatable on one end face away from the U-shaped clamp seat (25), and each group of secondary arc seats (27) has multiple groups of graded arc seats (28) that are rotatable on a straight line surface, and multiple groups of micro-level clamping blocks (29) that are rotatable on a straight line surface of each group of graded arc seats (28) that are away from the secondary arc seats (27).

3. The automatic clamping fixture for cleaning special-shaped automobile aluminum castings according to claim 1 is characterized in that: The clamping assembly further comprises a threaded rod (3) driven by a motor and freely rotatable in a vertical direction, the threaded rod (3) being fixedly rotatable on the support platform (1), an internal threaded tube (4) being threadedly connected to the threaded rod (3), a horizontal seat (5) being fixedly rotatable on the internal threaded tube (4), and a clamping assembly for limiting the synchronous rotation of the internal threaded tube (4) and the threaded rod (3) being provided on the horizontal seat (5); The transverse seat (5) is provided with a transverse sliding groove for sliding connection of the corresponding plate (9).

4. The automatic clamping fixture for cleaning special-shaped automobile aluminum castings according to claim 3 is characterized in that: The clamping assembly comprises a clamping plate (7) arranged on the transverse seat (5), and the transverse seat (5) is provided with a receiving groove for sliding connection of the clamping plate (7), and a plurality of groups of yielding springs (6) are arranged in the receiving groove, and the two ends of the yielding springs (6) are respectively fixedly connected to the clamping plate (7) and the transverse seat (5), and the internal threaded cylinder (4) is provided with a clamping groove (8) used in conjunction with the clamping plate (7); A positioning pin (10) is fixedly connected to one side of the clamping plate (7) facing the alignment plate (9), and a V-shaped positioning groove (11) for the positioning pin (10) to be slidably connected is provided on the alignment plate (9).

5. The automatic clamping fixture for cleaning special-shaped automobile aluminum castings according to claim 3 is characterized in that: The fixed punch assembly comprises an extension rod (20) arranged on an extension portion (901), and a groove body is provided on the extension portion (901) for the extension rod (20) to slide horizontally, and a swinging ball (22) is provided at one end of the extension rod (20) away from the extension portion (901), and the swinging ball (22) and the nozzle (23) are fixedly connected; The extension rod (20) is provided with a ball cavity for sliding connection with the swinging ball (22), and a locking bolt (32) is threadedly connected to the extension rod (20), and the locking bolt (32) is in abutting connection with the swinging ball (22); The extending portion (901) is fixedly connected to a lateral pipe (21), and a plurality of groups of hoses (24) are fixedly passed through the lateral pipe (21), and each group of hoses (24) is fixedly passed through a swinging ball (22) in a group of fixed impact assemblies.

6. The automatic clamping fixture for cleaning special-shaped automobile aluminum castings according to claim 5 is characterized in that: The cleaning assembly comprises a reflux cylinder (19) fixedly connected to the transverse seat (5); a liquid outlet end integrally formed on the reflux cylinder (19) is in gas communication with a lateral pipe (21); a piston plate (18) is provided in the reflux cylinder (19) and reciprocates in a horizontal direction; an outer peripheral surface of the piston plate (18) is in sliding contact with an inner wall of the reflux cylinder (19).

7. The automatic clamping fixture for cleaning special-shaped automobile aluminum castings according to claim 6 is characterized in that: A bottom sealing box (2) for receiving cleaning liquid is fixedly connected below the support platform (1), a filter plate (31) is fixedly connected to the inner wall of the bottom sealing box (2), and gas communication is established between the bottom sealing box (2) and the liquid inlet end of the reflux cylinder (19) integrally formed therewith; The support platform (1) is provided with a plurality of groups of guide holes (30) arranged in an array, and the plurality of groups of guide holes (30) are all in communication with the bottom sealing box (2).

8. The automatic clamping fixture for cleaning special-shaped automobile aluminum castings according to claim 6 is characterized in that: The cleaning assembly further comprises a hollow cylinder (12) sleeved on the threaded rod (3), the hollow cylinder (12) being coaxially fixed on the internally threaded cylinder (4), a worm (13) being fixedly sleeved on the hollow cylinder (12), the worm (13) being meshingly connected with a worm wheel (14), the worm wheel (14) being fixedly axially rotated on the transverse seat (5), and an axial disk (15) being coaxially fixed on the worm wheel (14); A swing rod (16) is provided on the axial position disc (15) to rotate in a fixed axis, one end of the piston plate (18) facing the axial position disc (15) is fixedly connected to a connecting rod (17), and one end of the swing rod (16) away from the axial position disc (15) rotates in a fixed axis on the connecting rod (17).

Images