A slurry dipping tool for investment casting

Abstract

The utility model relates to a slurry dipping device for investment casting technical field, concretely relates to a slurry dipping device for investment casting, which comprises: a tool main casing, which is open at the upper end and has a first inner cavity for containing slurry; a spill-proof casing, which is also open at the upper end and is arranged on the tool main casing, has a second inner cavity that is in communication with the first inner cavity; the lowest point of the second inner cavity is higher than that of the first inner cavity; and a fixing frame assembly, on which the tool main casing is detachably mounted. The tool main casing and the spill-proof casing are integrally formed; the upper end edge of the tool main casing is flush with that of the spill-proof casing in the horizontal direction. The tool main casing comprises a first arc-shaped plate that is curled upwards at both ends, a first side plate and a second side plate that extend upwards respectively with the pair of arc-shaped edges of the first arc-shaped plate as the base points, and the second side plate is an annular plate. The slurry dipping device for investment casting can realize slurry dipping of a wax mold with less slurry.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a slurry-coating tool for investment casting. Background Technology

[0002] Investment casting includes processes such as wax pressing, tree assembly, shell making, dewaxing and baking, casting, and post-processing. The specific process is as follows: First, wax models are made, and wax is injected into the mold to form a wax model that matches the shape of the casting. Then, multiple wax models are combined into a module. Next, paint is applied and sand is sprinkled to form a multi-layered refractory shell. Then, the wax model is heated and melted to obtain a hollow shell. After the shell is baked at high temperature, molten metal is poured in. After the metal solidifies, the shell is removed, the gating and riser are cleaned, and the casting is obtained after grinding and polishing.

[0003] In the prior art, slurry dipping usually involves immersing the wax model into a slurry dipping tank. However, if the products of investment casting are produced intermittently and the cost of slurry is high, using a slurry dipping tank will result in slurry waste. A slurry dipping tool for investment casting is proposed to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of this invention is to provide a slurry-dipping tool for investment casting, in order to solve the problem of slurry waste caused by using a slurry dipping bucket when the product is produced intermittently and the cost of slurry is high.

[0005] The technical solution of this utility model is: a slurry-coating fixture for investment casting, comprising:

[0006] The main housing of the tooling is open at the top and has a first inner cavity for holding slurry;

[0007] An overflow-proof housing, open at the top, is disposed on the main housing of the tooling and has a second inner cavity that communicates with the first inner cavity; the lowest point of the second inner cavity is higher than the lowest point of the first inner cavity;

[0008] The fixture main housing is detachably mounted on the fixture assembly.

[0009] Preferably, the main housing of the tooling and the spill prevention housing are integrally formed;

[0010] The upper edge of the main housing of the tooling is flush with the upper edge of the spill containment housing in the horizontal direction.

[0011] Preferably, the main housing of the tooling includes a first arc-shaped plate that curves obliquely upward at both ends, a first side plate and a second side plate that extend upward from a pair of arc-shaped edges of the first arc-shaped plate as base points, and the second side plate is an annular plate;

[0012] The spill-proof housing includes a second arc-shaped plate with both ends curled upwards at an angle, and a third side plate extending upwards from an arc-shaped edge of the second arc-shaped plate that is far from the main housing of the tooling.

[0013] The second arc-shaped plate has an arc-shaped edge near the main housing of the tooling connected to the inner ring edge of the second side plate.

[0014] Preferably, the second arc-shaped plate is an inclined arc-shaped plate that is lower at the end near the main housing of the tooling and higher at the end away from the main housing of the tooling.

[0015] Preferably, a cuboid positioning base is fixedly provided on the lower end face of the main housing of the tooling;

[0016] The fixing frame assembly includes four support modules located at the four corners of the corresponding positioning base, and the positioning base can be detachably installed on the four support modules.

[0017] Preferably, each of the four corners of the positioning base has an exposed, L-shaped blind groove extending from bottom to top;

[0018] Each of the support modules includes a support rod and an angled piece fixed to the top of the support rod and covering the corner of the positioning base; the four support rods are fixed together as a whole;

[0019] The angular component is provided with an L-shaped locking block that is interference-fitted with the blind groove at the position corresponding to the blind groove.

[0020] Preferably, the angular component includes a base plate, an L-shaped baffle that fixes the edge of the base plate, and the locking block is disposed on the inner wall of the baffle.

[0021] Preferably, the top surface of the card block is provided with an L-shaped sealing strip.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] (1) A slurry-dipping fixture for investment casting in this utility model includes: a main housing, an anti-overflow housing, and a fixing frame assembly. When the slurry-dipping fixture in this utility model is used, the robot arm holds the wax model embedded part and places the wax model horizontally in the slurry-dipping fixture. The wax model is rotated to make its surface dipped in slurry. For the gating channel and gate that are not easy to dip in slurry, the slurry in the second inner cavity of the anti-overflow housing can be manually scooped out and poured manually. This can achieve the goal of dipping the wax model with less slurry for products with intermittent production. Compared with the slurry-dipping bucket in the prior art, it effectively avoids the waste of slurry.

[0024] (2) A slurry-dipped fixture for investment casting in this utility model has a main housing that can be detachably installed on a fixed frame assembly, which facilitates the replacement of the slurry in the main housing and the cleaning and maintenance of the main housing.

[0025] (3) In this utility model, a slurry-adhesive tooling for investment casting is provided with an L-shaped sealing strip on the top surface of the card block. The sealing strip further prevents the slurry from overflowing and directly seeping into the contact surface between the card block and the blind groove due to misoperation. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Figure 1 This is a schematic diagram of the slurry-adhesive tooling for investment casting according to the present invention;

[0028] Figure 2 for Figure 1 The left view;

[0029] Figure 3 This is a schematic diagram of the positioning base described in this utility model;

[0030] Figure 4 This is a schematic diagram of the angular component described in this utility model.

[0031] The components are: 1. main housing of the tooling, 11. first arc plate, 12. first side plate, 13. second side plate, 2. first inner cavity, 3. positioning base, 31. blind groove, 4. support rod, 5. anti-overflow housing, 51. second arc plate, 52. third side plate, 6. angled component, 61. bottom plate, 62. baffle, 7. shielding part, 8. locking block, 9. sealing strip, 10. second inner cavity. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to specific embodiments:

[0033] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0034] like Figure 1 , Figure 2As shown, a slurry-dipping fixture for investment casting includes: a main fixture housing 1, an anti-overflow housing 5, and a fixing frame assembly. The main fixture housing 1 is open at the top and has a first inner cavity 2 for holding slurry. The main fixture housing 1 includes a first arc-shaped plate 11 with both ends curving upwards at an angle, a first side plate 12 and a second side plate 13 extending upwards from a pair of arc-shaped edges of the first arc-shaped plate 11, respectively, and the second side plate 13 is an annular plate. In this embodiment, the main fixture housing 1 adopts a horizontally inverted 1 / 3 cylindrical structure, which can achieve a smaller amount of slurry dipping onto the wax model by rotation, reducing slurry waste. Figure 3 As shown, a cuboid positioning base 3 is fixedly installed on the lower end face of the main housing 1 of the tooling; each of the four corners of the positioning base 3 has an exposed L-shaped blind groove 31 extending upwards. In this embodiment, the upper end of the blind groove 31 has a positioning base body of 0.5-1 cm, which is defined as the blocking part 7. The blocking part 7 forms a physical barrier by covering the contact area between the corner piece 6's locking block 8 and the blind groove 31, preventing the slurry from overflowing and directly seeping into the contact surface between the locking block 8 and the blind groove 31 due to misoperation, and avoiding the locking block 8 and the blind groove 31 from sticking together due to the solidification of the slurry, thus ensuring smooth subsequent disassembly.

[0035] The overflow-proof housing 5, open at the top, is mounted on the main housing 1 of the tooling and has a second inner cavity 10 communicating with the first inner cavity 2. The lowest point of the second inner cavity 10 is higher than the lowest point of the first inner cavity 2. The overflow-proof housing 5 includes a second arc-shaped plate 51 with both ends curving upwards at an angle, and a third side plate 52 extending upwards from an arc-shaped edge of the second arc-shaped plate 51 away from the main housing 1 of the tooling as a base point. An arc-shaped edge of the second arc-shaped plate 51 near the main housing 1 of the tooling is connected to the inner ring edge of the second side plate 13. The second arc-shaped plate 51 is an inclined arc-shaped plate with a lower end near the main housing 1 of the tooling and a higher end away from the main housing 1 of the tooling. In this embodiment, the inclined second arc-shaped plate 51 facilitates the return of slurry in the second inner cavity 10 of the overflow-proof housing 5 to the first inner cavity 2 of the main housing 1 of the tooling. In this embodiment, the anti-overflow shell 5 prevents the slurry from overflowing when the wax model is placed into the slurry in the first inner cavity 2 and rotated for dipping. It also allows for easy manual scooping of the slurry from the second inner cavity 10 of the anti-overflow shell 5, enabling manual application of slurry to areas of the wax model that are difficult to soak into. The main tooling shell 1 and the anti-overflow shell 5 are integrally formed; the upper edge of the main tooling shell 1 is flush with the upper edge of the anti-overflow shell 5 in the horizontal direction.

[0036] The fixture main housing 1 is detachably mounted on the fixture assembly. In this embodiment, the fixture main housing 1 is detachably mounted on the fixture assembly, facilitating the replacement of the slurry in the fixture main housing 1, as well as the cleaning and maintenance of the fixture main housing 1. The fixture assembly includes four support modules corresponding to the four corners of the positioning base 3, and the positioning base 3 is detachably mounted on the four support modules. Each support module includes a support rod 4 and an angled piece 6 fixed to the top of the support rod 4 and covering the corner of the positioning base 3; the four support rods 4 are fixed as a whole; as shown... Figure 4 As shown, an L-shaped locking block 8, which is interference-fitted with the blind groove 31, is provided on the corner component 6 at the position corresponding to the blind groove 31. The corner component 6 includes a base plate 61 and an L-shaped baffle 62 that fixes the edge of the base plate 61. The locking block 8 is disposed on the inner wall of the baffle 62. In this embodiment, the positioning base 3 is inserted from top to bottom, so that the locking block 8 is interference-fitted into the blind groove 31, thereby detachably mounting the main housing 1 of the tooling onto the fixing frame assembly. An L-shaped sealing strip 9 is provided on the top surface of the locking block 8. The sealing strip 9 further prevents the slurry from overflowing and directly seeping into the contact surface between the locking block 8 and the blind groove 31 due to misoperation.

[0037] When using the slurry-dipping fixture for investment casting in this utility model, the robot arm holds the wax pattern embedded part and places the wax pattern horizontally in the slurry-dipping fixture. The wax pattern is rotated so that its surface is dipped in slurry. For the sprue and gate that are not easy to dip in slurry, the slurry in the second inner cavity 10 of the anti-overflow shell 5 can be manually scooped out and poured.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A slurry-applying fixture for investment casting, characterized in that, include: The main housing of the tooling is open at the top and has a first inner cavity for holding slurry; An overflow-proof housing, open at the top, is disposed on the main housing of the tooling and has a second inner cavity that communicates with the first inner cavity; the lowest point of the second inner cavity is higher than the lowest point of the first inner cavity; The fixture main housing is detachably mounted on the fixture assembly.

2. The slurry-dipped fixture for investment casting according to claim 1, characterized in that: The main housing and the spill-proof housing of the tooling are integrally formed; The upper edge of the main housing of the tooling is flush with the upper edge of the spill containment housing in the horizontal direction.

3. The slurry-dipped fixture for investment casting according to claim 2, characterized in that: The main housing of the tooling includes a first arc-shaped plate that curves upward at both ends, a first side plate and a second side plate that extend upward from a pair of arc-shaped edges of the first arc-shaped plate as base points, and the second side plate is an annular plate; The spill-proof housing includes a second arc-shaped plate with both ends curled upwards at an angle, and a third side plate extending upwards from an arc-shaped edge of the second arc-shaped plate that is far from the main housing of the tooling. The second arc-shaped plate has an arc-shaped edge near the main housing of the tooling connected to the inner ring edge of the second side plate.

4. The slurry-dipped fixture for investment casting according to claim 3, characterized in that: The second arc-shaped plate is an inclined arc-shaped plate that is lower at the end near the main housing of the tooling and higher at the end away from the main housing of the tooling.

5. The slurry-dipped fixture for investment casting according to claim 1, characterized in that: A cuboid positioning base is fixedly provided on the lower end face of the main housing of the tooling. The fixing frame assembly includes four support modules located at the four corners of the corresponding positioning base, and the positioning base can be detachably installed on the four support modules.

6. The slurry-adhesive fixture for investment casting according to claim 5, characterized in that: The positioning base has exposed, L-shaped blind grooves at each of its four corners, extending upwards. Each of the support modules includes a support rod and an angled piece fixed to the top of the support rod and covering the corner of the positioning base; the four support rods are fixed together as a whole; The angular component is provided with an L-shaped locking block that is interference-fitted with the blind groove at the position corresponding to the blind groove.

7. The slurry-adhesive fixture for investment casting according to claim 6, characterized in that: The angular component includes a base plate and an L-shaped baffle that fixes the edge of the base plate. The locking block is disposed on the inner wall of the baffle.

8. The slurry-dipped fixture for investment casting according to claim 6, characterized in that: The top surface of the card block is provided with an L-shaped sealing strip.

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