Clamping device for fixing die-casting blank

Abstract

The utility model relates to a clamping device for fixing a die-casting blank. The clamping device comprises a base (1) and a stand column (2). The base (1) comprises two cross rods (11), a connecting piece (12) and a sleeve (13); the connecting piece (12) is arranged between the two cross rods (11) and is used for fixedly connecting the two cross rods (11); the sleeve (13) is arranged on the outer side of the cross rod (11) in a sleeving mode and can slide along the cross rod (11). The sleeve (13) is fixed at a specific position of the cross rod (11) by a bolt (132); the stand columns (2) are fixed to the sleeves (13) respectively, and the top ends of the stand columns (2) are provided with chucks (25) matched with the shape of the edge of a die-casting blank. During use, the sleeve (13) is fixed to the specific position of the cross rod (11), then the die-casting blank is fixed through the chuck (25), the blank does not need to be turned over frequently in the manual polishing process, the polishing efficiency can be improved, and safe production is guaranteed.

Description

Technical Field

[0001] The utility model relates to a tool for manufacturing die-cast alloy castings, and particularly to a clamping device for fixing die-cast blank parts. Background Art

[0002] With the development of aluminum alloy die-casting technology in recent years, the structure of aluminum alloy die-cast parts for automobiles (hereinafter referred to as die-cast parts) has gradually developed towards integration, and more functional parts can be formed by die-casting. The cost is getting lower and the demand is getting larger. The technological process for manufacturing die-cast parts is as follows: first, the alloy is melted into a melt, then the melt is pumped into a mold to form a die-cast blank part (hereinafter referred to as a blank part). After that, the blank part is subjected to processes such as removing the sprue, grinding, shot blasting, and machining to form a die-cast part with a standard shape. After passing the inspection, it is a casting product suitable for automobile assembly.

[0003] The purpose of the grinding process is to remove the burrs around the blank part. For blank parts with simple structures, small sizes, and small weights, mechanical grinding can be carried out by means of grinding vibration. However, for blank parts with complex structures, large sizes, and large weights, only manual grinding can be carried out at present. That is, the blank part needs to be placed at a suitable angle manually, fixed by hand or tools, and then a pneumatic reciprocating file is used to grind the edge, slag inclusion, mold joint line, and hole of the blank part in turn according to the grinding requirements and the steps in the instruction manual until all the burrs on the blank part are eliminated.

[0004] However, due to the large volume, large weight, and irregular shape of the blank part, it is difficult to fix, and it requires extra effort from the staff to hold the blank part steady, which is time-consuming and laborious, resulting in low work efficiency. Moreover, during the manual grinding process, the blank part needs to be moved and turned over, and it is easy for the blank part to fall over, and safety accidents are likely to occur. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems that when manually grinding die-cast blank parts, the blank parts are difficult to fix, it requires extra effort from the staff to hold the blank parts steady, and it also requires manual handling and turning over of the blank parts, which is prone to safety accidents.

[0006] To achieve the above purpose, the utility model provides a clamping device for fixing die-cast blank parts, which includes a base 1 and a plurality of columns 2.

[0007] The base 1 includes: two cross bars 11, a plurality of connectors 12, and a plurality of sleeves 13.

[0008] The cross bar 11 is a straight bar, and a plurality of connectors 12 are arranged on the bar between the two cross bars 11 to fixedly connect the two cross bars 11.

[0009] The sleeve 13 matches the shape of the cross bar 11 and is sleeved on the outside of the cross bar 11. It can slide along the cross bar 11 and is fixed to a specific position on the cross bar 11 by a bolt 132.

[0010] Each column 2 is vertically fixed on each sleeve 13, and a chuck 25 that matches the shape of the edge of the die-casting blank is provided at the top of the column 2.

[0011] During use, the sleeve 13 is fixed to a specific position on the cross bar 11 according to the shape of the die-casting blank, and then the die-casting blank is fixed by the chuck 25, and then manual grinding can be carried out. The movable sleeve 13 is adapted to various models of die-casting blanks and has strong practicability. The die-casting blank is supported by the column 2, which can reduce the obstacles around the die-casting blank and is more convenient for manual grinding, and there is no need for manual workers to frequently move and turn over the die-casting blank.

[0012] Preferably, each column includes: a housing 21, a handwheel 23, a driving bevel gear 231, a screw 24, a driven bevel gear 241, and a lifting column 22.

[0013] The lower end of the housing 21 is fixedly connected to the base 1, and a long receiving groove 210 perpendicular to the base 1 is formed on the upper side, and a circular through hole is formed in the lower part.

[0014] The handwheel 23 is a disc, and a cylinder 234 that coincides with the center line of the handwheel 23 is formed on one side of the handwheel 23. The end of the cylinder 234 away from the handwheel 23 passes through the circular through hole and enters the housing 21.

[0015] The driving bevel gear 231 is arranged at the lower part of the long receiving groove 210 through the cylinder 234.

[0016] The screw 24 is arranged in the long receiving groove 210, and the lower end is rotatably connected to the bottom surface of the long receiving groove 210.

[0017] The driven bevel gear 241 is fixedly arranged at the lower part of the screw 24 and meshes with the driving bevel gear 231. Rotating the handwheel 23 can drive the screw 24 to rotate.

[0018] The lifting column 22 is a long rod that matches the shape of the long receiving groove 210. The lower end is arranged in the long receiving groove 210, and the upper end is provided with a chuck 25 that matches the shape of the edge of the die-casting blank.

[0019] A thread groove 220 that matches the shape of the screw 24 is formed on the lower side of the lifting column 22. The screw 24 enters the thread groove 220, and the lifting column 22 is threadedly connected to the screw 24.

[0020] Rotating the handwheel 23 can drive the screw rod 24 to rotate. Through the action of the thread, the lifting column 22 can move up and down within a certain range to change the height. When in use, it can adapt to more sizes and models of blank parts, with strong practicability.

[0021] Preferably, the cross bars 11 and the connecting members 12 are rods with a square cross-section, and the sleeves 13 are square sleeves.

[0022] The connecting member 12 has a smaller height compared to the cross bar 11. The end of the connecting member 12 is located in the middle of the side wall of the cross bar 11, and there is a spacing from the upper and lower ends of the cross bar 11.

[0023] A through groove 131 is formed in the side wall of the sleeve 13 close to the connecting member 12. During the movement of the sleeve 13 along the cross bar 11, the connecting member 12 can pass through the through groove 131.

[0024] Therefore, during the movement of the sleeve 13, it can be unrestricted by the position of the connecting member 12 and has a larger movement range, so as to adapt to more different models and sizes of blank parts, with stronger practicability. The cross bars 11, the connecting members 12, and the sleeves 13 are all selected to have a square shape because the square has better stability and is less likely to rotate or change the relative position during the movement of the sleeve 13 along the cross bar 11, avoiding the situation where the connecting member 12 cannot pass through the through groove 131.

[0025] Preferably, a circular fixing plate 232 is formed in the middle of the handwheel 23, and a plurality of fixing holes 233 arranged annularly around the rotating shaft of the handwheel 23 are formed on the fixing plate 232.

[0026] At the position corresponding to the specific fixing hole 233 on the outer shell 21, a fixing block 26 is provided. On the side of the fixing block 26 close to the handwheel 23, a slot 260 matching the fixing hole 233 is formed.

[0027] The handwheel 23 is fixed by inserting a pin 261 into the specific fixing hole 233 and the slot 260.

[0028] When in use, after the lifting rod 22 is adjusted to the appropriate position, the pin 261 is inserted into the slot 260 through the fixing hole 233 to fix the handwheel 23, making it unable to rotate and preventing the height of the lifting rod 22 from changing due to reasons such as the excessive weight of the blank part during the operation.

[0029] Preferably, an installation groove matching the upper end of the lifting column 22 is formed on the lower side of the chuck 25. The chuck 25 is detachably installed at the upper end of the lifting column 22 through the installation groove, and can adapt to more shapes of blank parts.

[0030] Preferably, an anti-slip pad is provided on the surface of the chuck 25, which can play an anti-slip role and prevent the blank part from falling off. Description of the Drawings

[0031] Figure 1 It is a structural diagram of a clamping device for fixing die-cast blanks;

[0032] Figure 2 It is to cut the column along Figure 1 in the A-A sectional view;

[0033] Figure 3 It is Figure 1 an enlarged diagram of part B in Specific implementation mode

[0034] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following description is a concretization of the claims of the present invention.

[0035] Figure 1 It shows the structure of the clamping device, Figure 2 It is to cut the column along Figure 1 in the A-A sectional view, Figure 3 It is Figure 1 an enlarged diagram of part B in

[0036] The following is a description of the clamping device in combination with Figures 1 - 3

[0037] As Figure 1 shown, the clamping device for fixing die-castings includes a flat base 1 and four columns 2. The four columns 2 are fixed on the base 1 and are perpendicular to the base 1.

[0038] As Figure 1 shown, the base 1 includes: two parallel crossbars 11, a plurality of connecting pieces 12 (straight rods) for fixedly connecting the crossbars 11, and a plurality of sleeves 13 arranged on the crossbars 11.

[0039] As Figure 1 shown, the crossbar 11 is a straight rod with a square cross-section, and a plurality of first mounting holes 110 are formed on the side, and the first mounting holes 110 are arranged along the center line of the crossbar 11.

[0040] The sleeve 13 matches the shape of the crossbar 11 and is a square sleeve (the cross-section of the internal through-hole is a square that fits the cross-section of the crossbar 11). It is sleeved on the outside of the crossbar 11 and can slide along the crossbar 11. A second mounting hole 130 corresponding to the first mounting hole 110 is provided on the sleeve 13. The sleeve 13 is fixed at a specific position on the crossbar 11 that adapts to the shape of the casting by a bolt 132 passing through the second mounting hole 130 and a specific first mounting hole 110.

[0041] As Figure 1 ​As shown, the connecting member 12 is a rod with a square cross-section, which has a smaller height than the crossbar 11, that is, it is more "flat". The end of the connecting member 12 is located in the middle of the side wall of the crossbar 11, and there is a spacing from the upper and lower ends of the crossbar 11. A through slot 131 is formed in the side wall of the sleeve 13 close to the connecting member 12. During the movement of the sleeve 13 along the crossbar 11, the connecting member 12 can pass through the through slot 131.

[0042] Each column 2 is respectively fixed on each sleeve 13.

[0043] As Figure 2 shown, the column 2 includes: a housing 21, a handwheel 23, a driving bevel gear 231, a screw rod 24, a driven bevel gear 241, and a lifting column 22.

[0044] The housing 21 is a hollow square cylinder, the lower end is fixedly connected to the base 1, a long receiving groove 210 perpendicular to the base 1 is formed on the upper side, and a circular through hole is formed in the lower part.

[0045] The handwheel 23 is a disc, and a cylinder 234 coinciding with the center line of the handwheel 23 is formed on one side of the handwheel 23. The end of the cylinder 234 far from the handwheel 23 passes through the circular through hole and enters the housing 21.

[0046] The driving bevel gear 231 is arranged at the lower part of the long receiving groove 210 through the cylinder 234.

[0047] The screw rod 24 is arranged in the long receiving groove 210, and the lower end is rotatably connected to the bottom surface of the long receiving groove 210.

[0048] The driven bevel gear 241 is fixedly arranged at the lower part of the screw rod 24 and meshes with the driving bevel gear 231. Rotating the handwheel 23 can drive the screw rod 24 to rotate.

[0049] The lifting column 22 is a long rod matching the shape of the long receiving groove 210. The lower end is arranged in the long receiving groove 210, and the upper end is provided with a chuck 25 matching the edge shape of the die-casting blank.

[0050] A thread groove 220 matching the shape of the screw rod 24 is formed on the lower side of the lifting column 22. The screw rod 24 enters the thread groove 220, and the lifting column 22 is threadedly connected to the screw rod 24. Rotating the handwheel 23 can drive the screw rod 24 to rotate, and through the action of the thread, the lifting column 22 can move up and down within a certain range to change the height. In addition, as Figure 3 shown, a circular fixing plate 232 is formed in the middle of the handwheel 23, and a plurality of fixing holes 233 arranged annularly around the rotating shaft of the handwheel 23 are formed on the fixing plate 232.

[0051] A fixing block 26 is provided at a position corresponding to a specific fixing hole 233 of the outer shell 21. A slot 260 matching the fixing hole 233 is formed on one side of the fixing block 26 close to the handwheel 23 (see Figure 2 ), and the handwheel 23 is fixed by inserting a pin 261 into the specific fixing hole 233 and the slot 260.

[0052] Figure 2 And Figure 1 Combined, an installation groove matching the upper end of the lifting column 22 is formed on the lower side of the chuck 25 located at the top of the lifting column 22, and the chuck 25 is detachably installed at the upper end of the lifting column 22 through the installation groove.

[0053] A non-slip pad (not shown in the figure) is provided on the surface of the chuck 25, which can play a non-slip role and prevent the blank from falling off.

[0054] During use, the sleeve 13 is fixed at a specific position of the cross bar 11 according to the shape of the die-cast blank, and then the die-cast blank is fixed by using the chuck 25, and then manual grinding can be carried out. The movable sleeve 13 is adapted to various models of die-cast blanks, and has strong practicability.

[0055] By using the through groove 131 structure formed on the side wall of the sleeve 13, when the sleeve 13 moves, it can be unrestricted by the position of the connecting piece 12 and has a larger moving range, so as to adapt to more blanks of different models and sizes, and has stronger practicability.

[0056] After the lifting rod 22 is adjusted to a suitable position, the pin 261 is inserted into the slot 260 through the fixing hole 233 to fix the handwheel 23 so that it cannot rotate, preventing the height of the lifting rod 22 from changing due to the excessive weight of the blank during the operation process.

[0057] The cross bar 11, the connecting piece 12, and the sleeve 13 are all selected in a square shape, and the stability of the square can be utilized to make the sleeve 13 less likely to rotate or change its relative position during the movement along the cross bar 11, avoiding the situation that the connecting piece 12 cannot pass through the through groove 131.

[0058] The die-cast blank is supported by the column 2, which can reduce the obstacles around the die-cast blank, making it more convenient for manual grinding, and there is no need for manual to frequently move and turn over the die-cast blank.

[0059] The clamping device provided by the present utility model has a simple structure and is convenient to use, and can be applied to blanks of various specifications, sizes and models. By using the clamping device to fix the die-cast blank, it is not necessary to frequently turn over the blank during the process of manual grinding, which can improve the grinding efficiency and ensure safe production.

Claims

1. A clamping device for fixing a die-cast blank, characterized in that: It comprises a base (1), a plurality of columns (2), The base (1) comprises: two cross bars (11), a plurality of connecting pieces (12), and a plurality of sleeves (13). The crossbar (11) is a straight bar, and a plurality of connecting members (12) are arranged on a bar between two crossbars (11) to fixedly connect the two crossbars (11). The sleeve (13) is sleeved on the outside of the cross bar (11) and is capable of sliding along the cross bar (11). The sleeve (13) is fixed at a specific position of the cross bar (11) by a bolt (132). Each of the columns (2) is vertically fixed on each of the sleeves (13), and a chuck (25) matching the edge shape of the die-cast blank is provided at the top end of the column (2).

2. The clamping device according to claim 1, characterized in that: Each of the upright columns comprises: a housing (21), a hand wheel (23), a driving bevel gear (231), a screw rod (24), a driven bevel gear (241), and a lifting column (22). The lower end of the housing (21) is fixedly connected to the base (1), a long receiving groove (210) perpendicular to the base (1) is formed on the upper side, and a circular through hole is formed on the lower part. The hand wheel (23) is a disc, and a cylinder (234) is formed on one side of the hand wheel (23) and coincides with the center line of the hand wheel (23). An end of the cylinder (234) away from the hand wheel (23) passes through the circular through hole and enters the housing (21). The active bevel gear (231) is arranged at the lower part of the long receiving groove (210) via the cylinder (234). The screw rod (24) is disposed in the long receiving groove (210), and the lower end is rotatably connected to the bottom surface of the long receiving groove (210). The driven bevel gear (241) is fixedly arranged at the lower part of the screw rod (24) and meshes with the driving bevel gear (231). The rotation of the hand wheel (23) can drive the screw rod (24) to rotate. The lifting column (22) is a long rod that matches the shape of the long receiving groove (210), the lower end of which is arranged in the long receiving groove (210), and the upper end of which is provided with a chuck (25) that matches the edge shape of the die-cast blank. A thread groove (220) matching the shape of the screw rod (24) is formed on the lower side of the lifting column (22); the screw rod (24) enters the thread groove (220), and the lifting column (22) is threadedly connected to the screw rod (24).

3. The clamping device according to claim 1, characterized in that: The cross bar (11) and the connecting piece (12) are bars with square cross sections, and the sleeve (13) is a square sleeve. The shape of the connecting member (12) is smaller in height than that of the cross bar (11); the end of the connecting member (12) is located in the middle of the side wall of the cross bar (11) and is spaced apart from the upper and lower ends of the cross bar (11). A through slot (131) is formed on a side wall of the sleeve (13) close to the connecting piece (12); when the sleeve (13) moves along the crossbar (11), the connecting piece (12) can pass through the through slot (131).

4. The clamping device according to claim 2, characterized in that: A circular fixing disk (232) is formed in the middle of the hand wheel (23), and a plurality of fixing holes (233) are formed on the fixing disk (232) and are arranged in a ring around the rotating shaft of the hand wheel (23). A fixing block (26) is provided at a position of the housing (21) corresponding to the specific fixing hole (233), and a slot (260) matching the fixing hole (233) is formed on a side of the fixing block (26) close to the hand wheel (23). The hand wheel (23) is fixed by inserting the latch pin (261) into the specific fixing hole (233) and the slot (260).

5. The clamping device according to claim 2 or 4, characterized in that: A mounting groove matching the upper end of the lifting column (22) is formed on the lower side of the clamp (25), and the clamp (25) is detachably mounted on the upper end of the lifting column (22) through the mounting groove.

6. The clamping device according to any one of claims 1 to 4, characterized in that: The surface of the clamp (25) is provided with an anti-slip pad.

Images