Positioning structure for aluminum alloy extrusion die

Abstract

The utility model discloses a positioning structure for an aluminum alloy extrusion die, which belongs to the technical field of extrusion dies and comprises a bottom plate, four support columns are fixedly connected to the top of the bottom plate, a top plate is fixedly connected to the tops of the four support columns, two groups of first electric push rods are bolted on the bottom surface of the top plate, and two groups of second electric push rods are bolted on the bottom surface of the top plate. The output ends of the two first electric push rods are fixedly connected with a lifting plate, the lifting plate is movably connected with the supporting columns, the bottom of the lifting plate is fixedly connected with an upper mold, a lower mold is arranged on the top of the bottom plate, a positioning mechanism is arranged on the side wall of the bottom plate, and a guide supporting mechanism is arranged at one end of the bottom plate. By arranging the positioning mechanism, the lower die can be stably positioned and clamped, the clamped and positioned lower die can be limited and locked, displacement of the lower die in the horizontal direction and the vertical direction is effectively prevented, meanwhile, the corners of the lower die can be clamped and limited, and the positioning stability of the lower die is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion dies, in particular to a positioning structure for an aluminum alloy extrusion die. Background Art

[0002] Extrusion dies are generally used for aluminum profile extrusion. Aluminum profile extrusion is to put aluminum ingots into a container and apply a certain pressure to make them pass through die holes to form profiles of various shapes. This container is a tool made of steel, also known as a die. In the aluminum alloy processing industry, extrusion dies are indispensable important tools, which directly affect the forming quality, production efficiency and material utilization rate of aluminum alloy products. Especially in the processing of high-precision and high-requirement aluminum alloy products, the positioning structure of the die is particularly crucial.

[0003] In the process of using the existing extrusion die positioning device, since the material of the die is aluminum, damage to the die surface is caused during the fixing process, which affects the subsequent reuse of the die, reduces the service life of the die, and thus reduces the practicability of the device.

[0004] The existing patent (Publication No.: CN217528752U) for an extrusion die positioning device, through the cooperation of a sliding rail, a limiting partition plate, a sliding base and a sliding auxiliary handle, plays a role in sliding the position of the sliding base by using the sliding auxiliary handle, so that the position of the mounting plate can be adjusted according to the actual size of the die, so that the four corners of the die can be better fixed, avoiding the position deviation of the die caused by extrusion, improving the fixing effect of the device and thus improving the practicability of the device.

[0005] In view of the above problems, the existing patent gives a solution, but there is a problem that the clamped and positioned die cannot be locked and limited. The existing positioning device positions the die by squeezing at the four corners of the die, but there are still displacement problems in the horizontal and vertical directions of the die. In this way, when two dies extrude aluminum alloy, deviation will occur, resulting in deviation in workpiece casting.

[0006] Therefore, a positioning structure for an aluminum alloy extrusion die is proposed. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a positioning structure for an aluminum alloy extrusion die, which can solve the problem that the existing extrusion die positioning device cannot lock and limit the clamped and positioned die. The existing positioning device positions the die by squeezing at the four corners of the die, but there are still displacement problems in the horizontal and vertical directions of the die. In this way, when two dies extrude aluminum alloy, deviation will occur, resulting in deviation in workpiece casting.

[0008] To achieve the above object, the present utility model provides the following technical solution: A positioning structure for an aluminum alloy extrusion die, including a bottom plate, on the top of the bottom plate are fixedly connected four support columns, on the top of the four support columns is fixedly connected a top plate, on the bottom surface of the top plate are bolted two groups of electric push rods I, the output ends of the two electric push rods I are fixedly connected with a lifting plate, the lifting plate is movably connected with the support columns, at the bottom of the lifting plate is fixedly connected an upper die, on the top of the bottom plate is arranged a lower die, on the side wall of the bottom plate is arranged a positioning mechanism, and at one end of the bottom plate is arranged a guiding and supporting mechanism;

[0009] The positioning mechanism includes a sliding groove, a sliding plate, an electric push rod II, a positioning strip, a movable groove, a positioning block, a positioning groove, a rotating rod, a connecting block, a limiting component and a clamping component. The two sliding grooves are opened in the middle of the bottom plate, the sliding plate is movably arranged inside the sliding grooves, the electric push rod II is bolted on the bottom surface of the bottom plate, the output end of the electric push rod II is fixedly connected with the sliding plate, the positioning strip is fixedly connected to the top of the sliding plate, the movable groove is opened in the middle of the positioning strip, the positioning block is movably arranged inside the movable groove, the positioning grooves are opened on the two side walls of the lower die, the positioning block is movably connected with the positioning grooves, the rotating rod is connected by a bearing in the middle of the positioning strip and is fixedly connected with the positioning block, the connecting block is fixedly connected to the top of the rotating rod, the limiting component is arranged in the middle of the connecting block, and the clamping component is arranged at both ends of the positioning strip.

[0010] Preferably, the limiting component includes a limiting screw I and a limiting hole. The limiting screw I is threadedly connected to one side of the connecting block, and the two limiting holes are opened on the top of the positioning strip and are movably connected with the limiting screw I.

[0011] Preferably, the clamping component includes a bidirectional lead screw, a driving motor, a threaded block and a clamping block. The bidirectional lead screw is arranged on the side wall of the positioning strip, the driving motor is bolted on the side wall of the positioning strip and the output end is fixedly connected with the bidirectional lead screw, the two threaded blocks are threadedly connected to both ends of the bidirectional lead screw, the two clamping blocks are movably arranged at both ends of the positioning strip, the clamping blocks are fixedly connected with the threaded blocks, and the side wall of the clamping block contacts with the lower die.

[0012] Preferably, the guiding and supporting mechanism includes a guiding cylinder, a guiding rod and a limiting screw II. The two guiding cylinders are fixedly connected to the top of the bottom plate, the two guiding rods are fixedly connected to the side wall of the positioning strip, the guiding rods are movably connected with the guiding cylinders, and the limiting screw II is threadedly connected to the middle of the guiding cylinder and the bottom contacts with the guiding rod.

[0013] Preferably, a limiting groove is opened on the side wall of the guiding rod, and the side wall of the limiting screw II contacts with the limiting groove.

[0014] Preferably, a protective pad is bonded to the side wall of the clamping block, and the side wall of the protective pad contacts the lower mold.

[0015] Preferably, two sliding rods are fixedly connected to the bottom of the bottom plate, and both ends of the sliding plate are movably connected to the sliding rods.

[0016] Preferably, four supporting feet are fixedly connected to the bottom of the bottom plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. In this application, by providing a positioning mechanism, the lower mold can be stably positioned and clamped during this process, and the clamped and positioned lower mold can be limited and locked, effectively preventing the lower mold from displacing in the horizontal and vertical directions. At the same time, the corners of the lower mold can be clamped and limited, improving the stability of positioning the lower mold.

[0019] 2. In this application, by providing a guiding and supporting mechanism, the guiding movement of the positioning strip can be assisted during this process, and the positioning strip can be supported and positioned after the positioning strip clamps and positions the lower mold, improving the stability of positioning the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the overall structural view of the present utility model;

[0022] Figure 2 is the left view of the present utility model;

[0023] Figure 3 is the present utility model Figure 2 the three-dimensional sectional view at A-A in;

[0024] Figure 4 is the partial sectional structural schematic diagram of the present utility model;

[0025] Figure 5 is the structural view of the clamping assembly of the present utility model;

[0026] Figure 6 is the present utility model Figure 3 the enlarged view at A in;

[0027] Figure 7This is the structural view of the lower mold and the positioning groove of the present utility model;

[0028] Figure 8 This is the structural view of the slide bar of the present utility model.

[0029] Explanation of reference numerals in the drawings:

[0030] 1. Bottom plate; 2. Support column; 3. Top plate; 4. First electric push rod; 5. Lifting plate; 6. Upper mold; 7. Lower mold; 8. Positioning mechanism; 9. Guide support mechanism; 81. Chute; 82. Slide plate; 83. Second electric push rod; 84. Positioning bar; 85. Movable groove; 86. Positioning block; 87. Positioning groove; 88. Rotating rod; 89. Connecting block; 810. Limiting assembly; 811. Clamping assembly; 8101. First limiting screw; 8102. Limiting hole; 8111. Bidirectional lead screw; 8112. Driving motor; 8113. Threaded block; 8114. Clamping block; 91. Guide cylinder; 92. Guide rod; 93. Second limiting screw; 10. Limiting groove; 11. Protective pad; 12. Slide bar; 13. Support foot. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Please refer to Figures 1 to 8 , the present utility model provides a technical solution:

[0033] A positioning structure for an aluminum alloy extrusion mold, including a bottom plate 1, four support columns 2 are fixedly connected to the top of the bottom plate 1, a top plate 3 is fixedly connected to the top of the four support columns 2, two groups of first electric push rods 4 are bolted to the bottom surface of the top plate 3, the output ends of the two first electric push rods 4 are fixedly connected to a lifting plate 5, the lifting plate 5 is movably connected to the support columns 2, a upper mold 6 is fixedly connected to the bottom of the lifting plate 5, a lower mold 7 is arranged on the top of the bottom plate 1, a positioning mechanism 8 is arranged on the side wall of the bottom plate 1, and a guide support mechanism 9 is arranged at one end of the bottom plate 1;

[0034] The positioning mechanism 8 includes a sliding groove 81, a sliding plate 82, an electric push rod II 83, a positioning strip 84, a movable groove 85, a positioning block 86, a positioning groove 87, a rotating rod 88, a connecting block 89, a limiting component 810 and a clamping component 811. Two sliding grooves 81 are opened in the middle of the bottom plate 1. The sliding plate 82 is movably arranged inside the sliding groove 81. The electric push rod II 83 is bolted to the bottom surface of the bottom plate 1, and the output end of the electric push rod II 83 is fixedly connected to the sliding plate 82. The positioning strip 84 is fixedly connected to the top of the sliding plate 82. The movable groove 85 is opened in the middle of the positioning strip 84. The positioning block 86 is movably arranged inside the movable groove 85. The positioning grooves 87 are opened on both side walls of the lower die 7, and the positioning block 86 is movably connected with the positioning grooves 87. The rotating rod 88 is connected to the middle of the positioning strip 84 by a bearing and is fixedly connected to the positioning block 86. The connecting block 89 is fixedly connected to the top of the rotating rod 88. The limiting component 810 is arranged in the middle of the connecting block 89. The clamping component 811 is arranged at both ends of the positioning strip 84.

[0035] Specifically, as Figure 6 shown, the limiting component 810 includes a limiting screw I 8101 and a limiting hole 8102. The limiting screw I 8101 is threadedly connected to one side of the connecting block 89. Two limiting holes 8102 are opened on the top of the positioning strip 84 and are movably connected with the limiting screw I 8101.

[0036] Specifically, as Figure 5 shown, the clamping component 811 includes a bidirectional lead screw 8111, a driving motor 8112, a threaded block 8113 and a clamping block 8114. The bidirectional lead screw 8111 is arranged on the side wall of the positioning strip 84. The driving motor 8112 is bolted to the side wall of the positioning strip 84 and the output end is fixedly connected to the bidirectional lead screw 8111. Two threaded blocks 8113 are threadedly connected to both ends of the bidirectional lead screw 8111. Two clamping blocks 8114 are movably arranged at both ends of the positioning strip 84. The clamping block 8114 is fixedly connected to the threaded block 8113. The side wall of the clamping block 8114 contacts with the lower die 7.

[0037] Specifically, as Figure 4 shown, a protective pad 11 is bonded on the side wall of the clamping block 8114, and the side wall of the protective pad 11 contacts with the lower die 7.

[0038] Specifically, as Figure 8 shown, two sliding rods 12 are fixedly connected to the bottom of the bottom plate 1, and both ends of the sliding plate 82 are movably connected with the sliding rods 12.

[0039] Specifically, as Figure 1 shown, four support feet 13 are fixedly connected to the bottom of the bottom plate 1.

[0040] During use, when positioning and clamping the lower die 7, first place the lower die 7 on the top of the bottom plate 1. Start two electric push rods II 83 to drive the sliding plate 82 to move inside the sliding groove 81. During this process, the sliding rod 12 guides the movement of the sliding plate 82. The sliding plate 82 drives the positioning strip 84 to clamp and position the lower die 7. Then, rotate the rotating rod 88 by 180 degrees through the connecting block 89. At this time, the positioning block 86 rotates 180 degrees inside the moving groove 85, and the positioning block 86 enters the positioning groove 87. Then, rotate the limit screw I 8101 to move downward into the corresponding limit hole 8102. At this time, the lower die 7 is positioned, clamped, and limited. Then, start the driving motor 8112 to rotate the bidirectional lead screw 8111. The bidirectional lead screw 8111 moves in a threaded manner with the threaded block 8113. The clamping blocks 8114 move at both ends of the positioning strip 84. After the clamping blocks 8114 contact the lower die 7, the four corners of the lower die 7 are clamped and limited. In this way, the positioning strip 84 can clamp and position the lower die 7, and the positioning block 86 entering the positioning groove 87 can limit the lower die 7 to prevent the lower die 7 from displacing in the horizontal and vertical directions. At the same time, the setting of the clamping blocks 8114 can assist in clamping and positioning the corners of the lower die 7, realizing the stable positioning and clamping of the lower die 7.

[0041] Specifically, as Figure 3 shown, the guiding and supporting mechanism 9 includes a guiding cylinder 91, a guiding rod 92, and a limit screw II 93. Two guiding cylinders 91 are fixedly connected to the top of the bottom plate 1. Two guiding rods 92 are fixedly connected to the side wall of the positioning strip 84. The guiding rod 92 is movably connected to the guiding cylinder 91. The limit screw II 93 is threadedly connected to the middle of the guiding cylinder 91 and its bottom contacts the guiding rod 92.

[0042] Specifically, as Figure 3 shown, a limit groove 10 is formed on the side wall of the guiding rod 92, and the side wall of the limit screw II 93 contacts the limit groove 10.

[0043] During use, when the positioning strip 84 moves, the guiding rod 92 moves inside the guiding cylinder 91 to guide the movement of the positioning strip 84. After the positioning strip 84 stops moving, rotate the limit screw II 93 to enter the limit groove 10. At this time, the guiding rod 92 and the guiding cylinder 91 are limited. In this way, the support and limit of the positioning strip 84 can be realized.

[0044] By adopting the above technical solutions, the problem that the existing extrusion die positioning device cannot lock and limit the clamped and positioned die is solved. The existing positioning device positions by squeezing the four corners of the die, but there are still displacement problems in the horizontal and vertical directions of the die. This will cause the two dies to shift when extruding aluminum alloy, resulting in deviation in workpiece casting.

[0045] Working principle: When this application is in use, first place the lower mold 7 on the top of the bottom plate 1. Start the two electric push rods II 83 to drive the sliding plate 82 to move inside the chute 81. The sliding plate 82 drives the positioning strip 84 to clamp and position the lower mold 7. The guide rod moves inside the guide cylinder 91 to guide the movement of the positioning strip 84. After the positioning strip 84 stops moving, rotate the limit screw II 93 into the inside of the limit groove 10. At this time, the limit between the guide rod 92 and the guide cylinder 91 is achieved. Then, rotate the rotating rod 88 by 180 degrees through the connecting block 89. At this time, the positioning block 86 rotates 180 degrees inside the moving groove 85, and the positioning block 86 enters the positioning groove 87. Then, rotate the limit screw I 8101 downward to the corresponding limit hole 8102. At this time, the lower mold 7 is positioned, clamped, and limited. Then, start the drive motor 8112 to rotate the bidirectional lead screw 8111. The bidirectional lead screw 8111 moves in a threaded manner with the threaded block 8113. The clamping blocks 8114 move at both ends of the positioning strip 84. After the clamping blocks 8114 contact the lower mold 7, the four corners of the lower mold 7 are clamped and limited. In this way, the positioning strip 84 can clamp and position the lower mold 7. When the positioning block 86 enters the positioning groove 87, it can limit the lower mold 7 to prevent the lower mold 7 from displacing in the horizontal and vertical directions. At the same time, the setting of the clamping blocks 8114 can assist in clamping and positioning the corners of the lower mold 7, realizing the stable positioning and clamping of the lower mold 7.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioning structure for an aluminum alloy extrusion die, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to four support columns (2), the tops of the four support columns (2) are fixedly connected to a top plate (3), two groups of electric push rods (4) are bolted to the bottom surface of the top plate (3), the output ends of the two electric push rods (4) are fixedly connected to a lifting plate (5), the lifting plate (5) is movably connected to the support columns (2), the bottom of the lifting plate (5) is fixedly connected to an upper mold (6), the top of the bottom plate (1) is provided with a lower mold (7), a positioning mechanism (8) is provided on the side wall of the bottom plate (1), and one end of the bottom plate (1) is provided with a guide support mechanism (9); The positioning mechanism (8) comprises a slide groove (81), a slide plate (82), a second electric push rod (83), a positioning strip (84), a movable groove (85), a positioning block (86), a positioning groove (87), a rotating rod (88), a connecting block (89), a limiting assembly (810) and a clamping assembly (811), wherein the two slide grooves (81) are arranged in the middle of the base plate (1), the slide plate (82) is movably arranged inside the slide grooves (81), the second electric push rod (83) is bolted to the bottom surface of the base plate (1), the output end of the second electric push rod (83) is fixedly connected to the slide plate (82), and the positioning strip (84) is fixedly connected to the slide plate. The movable groove (85) is formed at the middle of the positioning strip (84), the positioning block (86) is movably arranged inside the movable groove (85), the positioning groove (87) is formed on the two side walls of the lower mold (7), the positioning block (86) is movably connected to the positioning groove (87), the rotating rod (88) is bearing-connected to the middle of the positioning strip (84) and fixedly connected to the positioning block (86), the connecting block (89) is fixedly connected to the top of the rotating rod (88), the limiting assembly (810) is arranged at the middle of the connecting block (89), and the clamping assembly (811) is arranged at both ends of the positioning strip (84).

2. The positioning structure for an aluminum alloy extrusion die according to claim 1, characterized in that: The limiting assembly (810) comprises a limiting screw (8101) and a limiting hole (8102), wherein the limiting screw (8101) is threadedly connected to one side of the connecting block (89), and the two limiting holes (8102) are opened at the top of the positioning strip (84) and are movably connected to the limiting screw (8101).

3. The positioning structure for an aluminum alloy extrusion die according to claim 1, characterized in that: The clamping assembly (811) comprises a bidirectional screw (8111), a driving motor (8112), a threaded block (8113) and a clamping block (8114); the bidirectional screw (8111) is arranged on the side wall of the positioning bar (84); the driving motor (8112) is bolted to the side wall of the positioning bar (84) and the output end is fixedly connected to the bidirectional screw (8111); the two threaded blocks (8113) are threadedly connected to the two ends of the bidirectional screw (8111); the two clamping blocks (8114) are movably arranged at the two ends of the positioning bar (84); the clamping blocks (8114) are fixedly connected to the threaded blocks (8113); and the side walls of the clamping blocks (8114) are in contact with the lower mold (7).

4. The positioning structure for an aluminum alloy extrusion die according to claim 1, characterized in that: The guide support mechanism (9) comprises a guide cylinder (91), a guide rod (92) and two limit screws (93); the two guide cylinders (91) are fixedly connected to the top of the bottom plate (1); the two guide rods (92) are fixedly connected to the side wall of the positioning strip (84); the guide rods (92) are movably connected to the guide cylinder (91); and the two limit screws (93) are threadedly connected to the middle of the guide cylinder (91) and the bottom is in contact with the guide rod (92).

5. The positioning structure for an aluminum alloy extrusion die according to claim 4, characterized in that: A limiting groove (10) is provided on the side wall of the guide rod (92), and the side wall of the second limiting screw (93) is in contact with the limiting groove (10).

6. The positioning structure for an aluminum alloy extrusion die according to claim 3, characterized in that: A protective pad (11) is bonded to the side wall of the clamping block (8114), and the side wall of the protective pad (11) is in contact with the lower mold (7).

7. The positioning structure for an aluminum alloy extrusion die according to claim 1, characterized in that: Two slide bars (12) are fixedly connected to the bottom of the base plate (1), and both ends of the slide plate (82) are movably connected to the slide bars (12).

8. The positioning structure for an aluminum alloy extrusion die according to claim 1, characterized in that: Four supporting legs (13) are fixedly connected to the bottom of the base plate (1).

Images