CN210703747U

CN210703747U - Positioning tool for finish machining of aluminum alloy castings

Info

Publication number: CN210703747U
Application number: CN201921281802.9U
Authority: CN
Inventors: 金文银
Original assignee: Shucheng Zhengheng Machinery Parts Co Ltd
Current assignee: Shucheng Zhengheng Machinery Parts Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-06-09
Anticipated expiration: 2029-08-08

Abstract

The utility model relates to a foundry goods finish machining equipment technical field provides an aluminum alloy foundry goods is location frock for finish machining, aims at solving the inaccurate and poor drawback of fixed effect of current location frock location, leads to the mechanical damage of aluminum alloy foundry goods easily, and then follow-up finish machining is more difficult, causes the inefficiency of processing technology, the poor problem of quality, include the base that sets gradually from bottom to top, back supporting frame and the case of operating the computer, the pneumatic cylinder is installed to the inner chamber of the case of operating the computer, and the output of pneumatic cylinder runs through the diapire of the case of operating the computer and install the lifter plate, and the lower extreme of lifter plate passes through bolt and nut combination demountable installation and has last positioner, the below of going up positioner is equipped with down the positioning seat, and positioning seat fixed mounting is in. The utility model discloses be particularly useful for the fine machined quick accurate location of aluminum alloy casting, have higher social use value and application prospect.

Description

Positioning tool for finish machining of aluminum alloy castings

Technical Field

The utility model relates to a foundry goods finish machining equipment technical field, concretely relates to aluminium alloy casting is location frock for finish machining.

Background

The aluminum alloy casting is a casting piece obtained by filling molten metal into a casting mold to obtain part blanks in various shapes, and has the advantages of low density, high specific strength, good corrosion resistance and casting manufacturability, small limitation of part structural design and the like. As the casting is used as a rough machining process, namely, a part of the mold which can not be molded exists, and the problem of low manufacturing precision grade of the product exists at the same time.

The fine machining process is a key production link of casting post-treatment, and the fine machining of the casting makes up the process of the limited part of the mold which cannot be formed and is also a necessary choice for improving the dimensional accuracy of the casting product.

The positioning tool is used for processing and positioning, and improves processing efficiency, precision, quality and safety. The positioning tool is used for positioning the aluminum alloy casting so as to avoid the problems of poor processing quality, low processing efficiency and the like caused by the sliding of the aluminum alloy casting in the processing process. When the aluminum alloy casting is subjected to finish machining, due to the defects that the existing positioning tool is inaccurate in positioning and poor in fixing effect, the aluminum alloy casting is easy to cause mechanical damage, and the subsequent finish machining is more difficult, so that the problems of low efficiency, poor quality and the like of a machining process are caused.

Therefore, a positioning tool for finish machining of aluminum alloy castings is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an aluminium alloy casting is location frock for finish machining has overcome the not enough of prior art, reasonable in design, and compact structure aims at solving the inaccurate and poor drawback of fixed effect in current location frock location, leads to the mechanical damage of aluminium alloy casting easily, and then follow-up finish machining is more difficult, causes the inefficiency of processing technology, the poor problem of quality.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a positioning tool for finish machining of aluminum alloy castings comprises a base, a rear supporting rack and an upper case which are sequentially arranged from bottom to top, wherein a hydraulic cylinder is installed in an inner cavity of the upper case, an output end of the hydraulic cylinder penetrates through the bottom wall of the upper case and is provided with a lifting plate, an upper positioning device is detachably installed at the lower end of the lifting plate through a bolt and nut combination, a lower positioning seat is arranged below the upper positioning device, and the lower positioning seat is fixedly installed at the upper end of the base;

go up positioner and include through bolt and nut combination demountable installation at the mounting panel of lifter plate lower extreme, and the lower extreme of mounting panel installs the installation sleeve through the dead lever, and has seted up a plurality of bar through-holes on the telescopic annular lateral wall of installation, the bar through-hole interpolation is equipped with the locating piece, and the upper end both ends of locating piece all are connected with the inner wall of bar through-hole through fixed spring, the telescopic inner chamber lower part of installation is equipped with the pressure head, and the lower extreme of pressure head installs ejector rod perpendicularly, the lower extreme of ejector rod reachs the telescopic exocoel of installation and installs the ejector pad, the cover is equipped with expanding spring on the ejector rod, and expanding spring's both ends are connected with the upper end of ejector pad and the telescopic bottom of installation.

Preferably, the top movable block is of a circular structure, the top movable block is coated with a rubber damping layer, and the diameter of the top movable block is smaller than the outer diameter of the mounting sleeve.

Preferably, the upper end of the positioning seat is provided with a positioning groove matched with the aluminum alloy casting, and the inner wall of the positioning groove is pasted with a rubber layer.

Preferably, the opposite sides of the positioning blocks are all arc-shaped structures with the upper ends extending inwards, and the annular side wall of the pressing head is provided with pressing grooves matched with the arc-shaped sides of the positioning blocks.

Preferably, a control panel is installed on the front wall of the upper case, a display screen and a control button are arranged on the control panel, and a PLC is arranged in the control panel.

Preferably, the lower end edge of the mounting plate is provided with a distance sensor, and the distance sensor is connected with the control panel through an electric control line.

(III) advantageous effects

The embodiment of the utility model provides an aluminum alloy casting is location frock for finish machining possesses following beneficial effect:

1. through the integrated configuration of last positioner and lower positioning seat, the aluminum alloy casting is placed under on the positioning seat, and the pneumatic cylinder descends, drives in positioner gets into the inner chamber of aluminum alloy casting downwards, and the first upward movement of pressure advances, and the outside expansion of locating piece in the a plurality of bar through-holes of extrusion contradicts the inner wall of aluminum alloy casting and fixes the aluminum alloy casting, and the two combines, and quick accurate location has effectually guaranteed the location and the fixed effect of aluminum alloy casting.

2. Through the setting of distance inductor and control panel, the distance between mounting panel to the aluminum alloy casting is measured to the distance inductor, and after putting into the aluminum alloy casting, go up positioner and stop after going down to predetermined distance, positioner's fixed effect had both been guaranteed to last positioner, and positioner's steady operation can be lived in effectual protection again, prevents to transship, has improved the automatic process of location frock.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure of the middle and upper positioning device of the present invention;

FIG. 4 is a schematic view of the combined structure of the pushing rod and the pressing head of the present invention;

fig. 5 is a schematic structural diagram of the aluminum alloy casting of the present invention.

In the figure: the device comprises a base 1, a rear supporting frame 2, an upper machine box 3, a control panel 4, a hydraulic cylinder 5, a lifting plate 6, a bolt and nut combination 7, an upper positioning device 8, a mounting plate 81, a fixing rod 82, a mounting sleeve 83, a strip-shaped through hole 84, a positioning block 85, a fixing spring 86, a press-in head 87, a push-moving rod 88, a push-moving block 89, a telescopic spring 810, a press-in groove 811, a distance sensor 812, a lower positioning seat 9, a rubber layer 10, a sliding guide rod 11 and an aluminum alloy casting a.

Detailed Description

The invention will be further described with reference to the following figures 1-5 and examples:

the utility model provides an aluminum alloy casting finish machining is with location frock, includes base 1, back support frame 2 and the last case 3 that sets gradually from bottom to top, has constituteed the frame of location, guarantees the installation of location frock, pneumatic cylinder 5 is installed to the inner chamber of going up case 3, and pneumatic cylinder 5's output runs through the diapire of last case 3 and install lifter plate 6, and lifter plate 6's lower extreme passes through bolt and nut combination 7 demountable installation and has last positioner 8, the below of going up positioner 8 is equipped with down positioning seat 9, and lower positioning seat 9 fixed mounting is in the upper end of base 1, and aluminum alloy casting a places on positioning seat 9 down, and pneumatic cylinder 5 starts, drives last positioner 8 of 6 lower extreme installations of lifter plate and descends, and aluminum alloy casting an is fixed to positioning seat 9 under the cooperation.

In this embodiment, as shown in fig. 3, the upper positioning device 8 includes a mounting plate 81 detachably mounted at the lower end of the lifting plate 6 through a bolt and nut assembly 7, a mounting sleeve 83 is mounted at the lower end of the mounting plate 81 through a fixing rod 82, a plurality of strip-shaped through holes 84 are formed in an annular side wall of the mounting sleeve 83, positioning blocks 85 are inserted into the strip-shaped through holes 84, both ends of the upper end of each positioning block 85 are connected with the inner wall of the corresponding strip-shaped through hole 84 through a fixing spring 86, a press-in head 87 is disposed at the lower portion of an inner cavity of the mounting sleeve 83, a push rod 88 is vertically mounted at the lower end of the press-in head 87, the lower end of the push rod 88 reaches the outer cavity of the mounting sleeve 83 and is mounted with a push block 89, a telescopic spring 810 is sleeved on the push rod 88, both ends of the telescopic spring 810 are respectively, the mounting sleeve 83 and the pushing block 89 are driven to enter the inner cavity of the aluminum alloy casting a downwards, then the pushing block 89 abuts against the upper end of the lower positioning seat 9, the hydraulic cylinder 5 pushes the mounting sleeve 83 to continue to move downwards, the pressing head 87 is driven to move upwards, the positioning blocks 85 in the plurality of strip-shaped through holes 84 are extruded to expand outwards, the positioning blocks abut against the inner wall of the aluminum alloy casting a, and the aluminum alloy casting a is fixed.

Meanwhile, the detachable structure of the upper positioning device 8 can be matched with the upper positioning devices 8 with different diameters of the installation sleeve 83 according to different aluminum alloy castings a, and the positioning and fixing of the aluminum alloy castings a are guaranteed.

In this embodiment, as shown in fig. 3, the top moving block 89 is of a circular structure, and the top moving block 89 is coated with a rubber shock-absorbing layer, the diameter of the top moving block 89 is smaller than the outer diameter of the installation sleeve 83, so that the top moving block 89 is effectively guaranteed to enter the inner cavity of the aluminum alloy casting a in a downward mode, and the pressing head 87 is expanded to position and fix the aluminum alloy casting a.

In this embodiment, as shown in fig. 2, the upper end of positioning seat 9 is provided with a positioning groove matched with the aluminum alloy casting, and the inner wall of the positioning groove is coated with a rubber layer 10, so that on one hand, the positioning groove can facilitate placement of aluminum alloy casting a, and in cooperation, positioning device 8 realizes fixation, and on the other hand, the setting of rubber layer 10 can effectively protect aluminum alloy casting a.

In this embodiment, as shown in fig. 4, opposite sides of the positioning blocks 85 are all arc structures with inward extending upper ends, and the annular side wall of the press-in head 87 is provided with press-in grooves 811 matched with the arc sides of the positioning blocks 85, so that the press-in head 87 is effectively ensured to push the positioning blocks 85 to expand outwards in the process of moving downwards to fix the aluminum alloy casting a.

In this embodiment, as shown in fig. 1, install control panel 4 on the antetheca of last machine case 3, and be equipped with display screen and control button on the control panel 4, control panel 4 embeds there is the PLC controller, and in this embodiment, the model of PLC controller is siemens S7-200, and control panel 4 is connected through electrical control line with pneumatic cylinder 5, and the processing personnel is through the control to control button on the control panel 4, combines the PLC controller, and effectual assurance pneumatic cylinder 5 opens and stops, realizes going down fixed aluminum alloy casting a of last positioner 8 to and the upward aluminum alloy casting a of taking out of going up positioner 8.

In this embodiment, as shown in fig. 3, a distance sensor 812 is installed at the lower end edge of the mounting plate 81, the distance sensor 812 is connected with the control panel 4 through an electrical control line, a processing worker operates a control button on the control panel 4, and combines with a PLC controller, the distance sensor 812 measures the distance between the mounting plate 81 and the aluminum alloy casting a, after the aluminum alloy casting a is placed in the mounting plate, the distance is shortened, the hydraulic cylinder 5 is started, and the aluminum alloy casting a is fixed by descending of the upper positioning device 8; stopping after descending to the preset distance of the upper positioning device 8, not only ensuring the fixing effect of the upper positioning device 8, but also effectively protecting the stable operation of the upper positioning device 8 and preventing overload.

The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A positioning tool for finish machining of aluminum alloy castings comprises a base, a rear supporting rack and an upper case which are sequentially arranged from bottom to top, and is characterized in that a hydraulic cylinder is installed in an inner cavity of the upper case, the output end of the hydraulic cylinder penetrates through the bottom wall of the upper case and is provided with a lifting plate, an upper positioning device is detachably installed at the lower end of the lifting plate through a bolt and nut combination, a lower positioning seat is arranged below the upper positioning device, and the lower positioning seat is fixedly installed at the upper end of the base;

2. The aluminum alloy casting finish machining positioning tool according to claim 1, characterized in that: the top movable block is of a circular structure, a rubber shock absorption layer is coated on the top movable block, and the diameter of the top movable block is smaller than the outer diameter of the mounting sleeve.

3. The aluminum alloy casting finish machining positioning tool according to claim 1, characterized in that: the upper end of the positioning seat is provided with a positioning groove matched with the aluminum alloy casting, and a rubber layer is attached to the inner wall of the positioning groove.

4. The aluminum alloy casting finish machining positioning tool according to claim 1, characterized in that: and the opposite sides of the positioning blocks are arc structures with the upper ends extending inwards, and the annular side wall of the press-in head is provided with press-in grooves matched with the arc sides of the positioning blocks.

5. The aluminum alloy casting finish machining positioning tool according to claim 1, characterized in that: the front wall of the upper case is provided with a control panel, the control panel is provided with a display screen and a control button, and the control panel is internally provided with a PLC (programmable logic controller).

6. The aluminum alloy casting finish machining positioning tool according to claim 5, characterized in that: the lower extreme edge of mounting panel is installed apart from the inductor, and is connected through electric control line apart from the inductor and control panel.