A casting mold with adjustable guide keys
By using adjustable guide key components in casting molds, the problem of inappropriate gap between the guide key and the keyway after the mold is heated is solved, and the smoothness of mold opening and closing is achieved, preventing the casting from being strained or deformed.
Patent Information
- Application Number
- CN202011549542.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-24
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2040-12-24
AI Technical Summary
During low-pressure casting, due to the different mold structure and wall thickness, the expansion amount of the die core and column after the mold is heated is different, resulting in the inappropriate fitting gap between the fixed guide key and the keyway, which affects the smooth opening of the mold, and thus affects the casting External dimensions.
The adjustable guide key assembly is adopted, including the master key, wedge key and fixing block. By adjusting the design of the slide groove and bolt, the mating gap between the master key and wedge key is adjusted after heating, ensuring the smooth opening and closing of the mold.
By adjusting the gap of the guide key assembly, it can adapt to the problem of inconsistent expansion of the mold, ensuring the smooth opening and closing of the mold and preventing the casting from being strained or deformed.
Smart Images
Figure CN112756583B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of casting moulds, in particular to a casting mould with adjustable guide keys. Background Art
[0002] During the low-pressure casting process, the mold needs to be baked to a certain temperature for normal production. Due to different mold structures and wall thicknesses, the expansion of the mold core and the column after the mold is heated is different. After the mold is heated during the casting process, the matching clearance between the fixed guide key and the keyway of the side mold is not appropriate. In actual production, it is difficult to make the matching clearance between the fixed guide key and the keyway completely appropriate. It is either too large or too tight, which affects the opening of the left and right molds, and then affects the external dimensions of the casting. Summary of the invention
[0003] The present invention aims to solve the deficiencies of the prior art and provides a casting mold with adjustable guide keys.
[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a casting mold with adjustable guide keys, comprising a mold bottom plate, a left template and a right template are respectively arranged on the left and right sides of the top surface of the mold bottom plate, the left template and the right template are both slidably connected to the mold bottom plate, a fixed back plate is arranged on the front and rear sides of the mold bottom plate, an upper template is arranged above the mold bottom plate, a casting cavity is formed between the upper template, the mold bottom plate, the two fixed back plates, the left template and the right template, the top surface of the mold bottom plate is connected to four columns respectively distributed at the four corners of the casting cavity, the side of the column facing the casting cavity is connected to a guide key assembly, and the guide key assembly includes a mother key, The wedge key and the fixed block, the mother key is fixed on the column, and the mother key is provided with an adjusting slot, the adjusting slot is parallel to the length direction of the mold bottom plate, and the upper side wall of the adjusting slot is inclined, and the lower side wall of the adjusting slot is horizontal. The wedge key and the fixed block are both located in the adjusting slot, the top surface of the wedge key is inclined and the bottom surface is horizontal, the top surface of the wedge key is fitted with the upper side wall of the adjusting slot, and the bottom surface of the wedge key is fitted with the top surface of the fixed block, one end of the fixed block is located in the adjusting slot, and the other end is fixed on the fixed back plate, the wedge key is provided with two waist-shaped holes, and the mother key is provided with a plurality of adjustment holes matching the waist-shaped holes, and the wedge key is fixed to the mother key by passing the bolts through the waist-shaped holes and screwing them in the adjustment holes.
[0005] A horizontal limit plate is connected to the upper end of the column, and a clamping platform is provided on the side of the bottom of the limit plate facing the casting cavity. The top surfaces of the left and right templates are both provided with clamping grooves matching the clamping platform, and the clamping platform prevents the left and right templates from moving upward.
[0006] A plurality of parallel guide blocks are arranged on both sides of the top surface of the mold bottom plate, and guide grooves matching the guide blocks are arranged on the bottom surfaces of the left template and the right template.
[0007] The top surface of the column is provided with a mounting hole.
[0008] The beneficial effects of the present invention are as follows: the present invention replaces the guide key and the keyway with a guide key assembly. After the present invention adopts the adjustable guide key assembly, after the mold is heated, the matching clearance between the mother key and the wedge key can be adjusted to the required range, ensuring that the left mold and the right mold open and close smoothly, and preventing the casting from being strained or deformed. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural schematic diagram of the present invention;
[0010] Figure 2 is a schematic diagram of the structure of the guide key assembly;
[0011] Figure 3 It is a structural schematic diagram showing that the wedge key is adjusted to the right side of the mother key;
[0012] Figure 4 It is a structural schematic diagram showing that the wedge key is adjusted to the left side of the mother key;
[0013] In the figure: 1- mold bottom plate; 2- left template; 3- right template; 4- fixed back plate; 5- upper template; 6- column; 7- guide key assembly; 71- female key; 72- wedge key; 73- adjustment slide; 74- fixed block; 75- waist hole; 76- adjustment hole; 8- limit plate; 9- card table; 10- guide block; 11- guide groove; 12- installation hole;
[0014] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION
[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:
[0016] like Figures 1 to 4As shown, a casting mold with adjustable guide keys comprises a mold base plate 1, a left template 2 and a right template 3 are respectively arranged on the left and right sides of the top surface of the mold base plate 1, the left template 2 and the right template 3 are both slidably connected to the mold base plate 1, a fixed back plate 4 is arranged on the front and rear sides of the mold base plate 1, an upper template 5 is arranged above the mold base plate 1, a casting cavity is formed between the upper template 5, the mold base plate 1, the two fixed back plates 4, the left template 2 and the right template 3, the top surface of the mold base plate 1 is connected to four columns 6 respectively distributed at the four corners of the casting cavity, the column 6 is connected to a guide key assembly 7 on the side facing the casting cavity, the guide key assembly 7 comprises a female key 71, a wedge key 72 and a fixed block 74, the female key 71 is fixed on the column 6, and the female key An adjusting slot 73 is provided on 71, and the adjusting slot 73 is parallel to the length direction of the mold bottom plate 1, and the upper side wall of the adjusting slot 73 is inclined, and the lower side wall of the adjusting slot 73 is horizontal. The wedge key 72 and the fixing block 74 are both located in the adjusting slot 73, the top surface of the wedge key 72 is inclined and the bottom surface is horizontal, the top surface of the wedge key 72 is in contact with the upper side wall of the adjusting slot 73, and the bottom surface of the wedge key 72 is in contact with the top surface of the fixing block 74, one end of the fixing block 74 is located in the adjusting slot 73, and the other end is fixed on the fixed back plate 4, the wedge key 72 is provided with two waist-shaped holes 75, and the mother key 71 is provided with a plurality of adjusting holes 76 matching the waist-shaped holes 75, and the wedge key 72 is screwed into the adjusting hole 76 by a bolt passing through the waist-shaped hole 75, so as to be fixed to the mother key 71.
[0017] A horizontal limit plate 8 is connected to the upper end of the column 6, and a clamping platform 9 is provided on the bottom surface of the limit plate 8 facing the casting cavity. The top surfaces of the left template 2 and the right template 3 are both provided with clamping grooves matching the clamping platform 9. The clamping platform 9 prevents the left template 2 and the right template 3 from moving upward.
[0018] A plurality of parallel guide blocks 10 are provided on both sides of the top surface of the mold bottom plate 1 , and guide grooves 11 matching the guide blocks 10 are provided on the bottom surfaces of the left mold plate 2 and the right mold plate 3 .
[0019] A mounting hole 12 is provided on the top surface of the column 6 .
[0020] When the present invention is working, the guide key assembly 7 can adjust the position of the wedge key 72 in the adjusting slot 73 of the mother key 71 through the through hole to change the width of the fixed block 73 contained in the adjusting slot 73, thereby adjusting the mold opening gap between the left mold 2 and the right mold 3. When the casting temperature to which the present invention is subjected is different, the expansion sizes of the column 6, the left mold 2 and the right mold 3 are also inconsistent. The present invention can adapt to the expansion inconsistency by adjusting the mold opening gap, thereby ensuring that the left mold 2 and the right mold 3 open and close smoothly, and preventing the casting from being strained or deformed.
[0021] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.
Claims
1. A casting mold with adjustable guide keys, characterized in that: The mold base plate (1) comprises a mold base plate (1), a left mold plate (2) and a right mold plate (3) are respectively arranged on the left and right sides of the top surface of the mold base plate (1), the left mold plate (2) and the right mold plate (3) are both slidably connected to the mold base plate (1), the front and rear sides of the mold base plate (1) are both provided with fixed back plates (4), an upper mold plate (5) is arranged above the mold base plate (1), a casting cavity is formed between the upper mold plate (5), the mold base plate (1), the two fixed back plates (4), the left mold plate (2) and the right mold plate (3), and the top surface of the mold base plate (1) is connected to four mold plates respectively distributed at The columns (6) are located at the four corners of the casting cavity. The side of the columns (6) facing the casting cavity is connected to a guide key assembly (7). The guide key assembly (7) includes a female key (71), a wedge key (72) and a fixed block (74). The female key (71) is fixed to the column (6). The female key (71) is provided with an adjustment slot (73). The adjustment slot (73) is parallel to the length direction of the mold bottom plate (1). The upper side wall of the adjustment slot (73) is inclined, and the lower side wall of the adjustment slot (73) is horizontal. The wedge key (72) and the fixed block (74) are ) are both located in the adjustment slot (73), the top surface of the wedge key (72) is inclined and the bottom surface is horizontal, the top surface of the wedge key (72) is in contact with the upper side wall of the adjustment slot (73), the bottom surface of the wedge key (72) is in contact with the top surface of the fixed block (74), one end of the fixed block (74) is located in the adjustment slot (73), and the other end is fixed to the fixed back plate (4), the wedge key (72) is provided with two waist-shaped holes (75), the mother key (71) is provided with a plurality of adjustment holes (76) matching the waist-shaped holes (75), the wedge key (72) is passed through the bolt The waist-shaped hole (75) is screwed into the adjustment hole (76) so as to be fixed on the mother key (71); the upper end of the column (6) is connected to a horizontal limit plate (8); a clamping platform (9) is provided on the bottom surface of the limit plate (8) facing the casting cavity, and the top surfaces of the left template (2) and the right template (3) are both provided with clamping grooves matching the clamping platform (9); a plurality of parallel guide blocks (10) are provided on both sides of the top surface of the mold bottom plate (1), and the bottom surfaces of the left template (2) and the right template (3) are both provided with guide grooves (11) matching the guide blocks (10).
2. The casting mold with adjustable guide keys according to claim 1, characterized in that: A mounting hole (12) is provided on the top surface of the column (6).