Wax mould forming device for precision casting

Abstract

The utility model relates to the field of investment casting, and discloses a wax mould forming device for precision castings, which comprises a machine table, a hydraulic rod is mounted at the top end of the inner wall of the machine table, a fixing mechanism is arranged at the bottom end of the inner wall of the machine table, the fixing mechanism comprises a positioning assembly and a fine adjustment assembly, the positioning assembly comprises a lower supporting plate, and the fine adjustment assembly comprises a lower supporting plate. The bottom end of the lower supporting plate is fixedly connected to the bottom end of the inner wall of the machine table, a fixing hole is formed in the top end of the lower supporting plate, a lower mold is placed at the top end of the lower supporting plate, an upper mold is connected to the top end of the lower mold in an inserted mode, and multiple sets of positioning rods are connected to the inner wall of the fixing hole in an inserted mode. According to the utility model, by arranging the adjustable fixing mechanism and the wax conveying assembly, the positions of the fixing mechanism and the wax conveying assembly can be freely adjusted during processing, the processing point position can be freely changed by adjusting the positions of the fixing mechanism and the wax conveying assembly, and meanwhile, the fixing mechanism can assist an operator in aligning a mold with a wax injection head.

Description

TECHNICAL FIELD

[0001] The utility model relates to investment casting field especially relates to a wax mould forming device for precision casting. BACKGROUND

[0002] Investment casting, also known as lost wax casting, is a precision casting method. First, an accurate fusible model is made of a fusible material. Then, multiple layers of refractory material are coated on the surface of the wax mold. After drying and hardening, a complete shell is formed. Then, the wax mold is melted and flows out, leaving a hollow shell. Finally, liquid metal is poured into the shell. After the metal solidifies and cools, the shell is broken, and the desired precision casting is obtained.

[0003] In the prior art, when forming a wax mold, the upper and lower molds need to be combined first, then the mold is placed at the bottom end of the liquid injection port, and finally the hydraulic machine is started to drive the pressing plate to fix the mold, while the liquid injection pipe is inserted into the mold. The overall device is fixed in position during use, and the liquid injection pipe needs to be manually aligned. This is inconvenient during manufacturing. Therefore, a wax mold forming device for precision casting is proposed to solve the above problems. SUMMARY

[0004] To overcome the above shortcomings, the utility model provides a wax mold forming device for precision casting, which aims to improve the problem of "the processing position of the existing mold forming device is relatively fixed, and the mold needs to be manually moved to align the processing point during processing, which is inconvenient during use".

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a wax mold forming device for precision casting, comprising a machine table, a hydraulic rod is installed at the top end of the inner wall of the machine table, a fixing mechanism is arranged at the bottom end of the inner wall of the machine table, the fixing mechanism comprises a positioning assembly and a fine adjustment assembly, the positioning assembly comprises a lower support plate, the bottom end of the lower support plate is fixedly connected to the bottom end of the inner wall of the machine table, a fixing hole is arranged at the top end of the lower support plate, a lower mold is placed at the top end of the lower support plate, an upper mold is inserted into the top end of the lower mold, a plurality of positioning rods are inserted into the inner wall of the fixing hole, one end of one of the positioning rods is fixedly connected to a sleeve, a sliding rod is connected to the front end of the sleeve, the other end of the other positioning rod is fixedly connected to the bottom end of the sliding rod, and a wax feeding assembly is arranged at the bottom end of the hydraulic rod.

[0006] Further description of the above technical scheme:

[0007] The fine adjustment assembly comprises a threaded block, the right end of the threaded block is fixedly connected to the left end of the sleeve near the rear end, and a threaded rod is connected to the front end of the threaded block.

[0008] Further description of the above technical scheme:

[0009] The rear end of the threaded rod is rotationally connected with a baffle, and the front end of the threaded rod is fixedly connected with a knob.

[0010] As a further description of the above technical solution:

[0011] The right end of the sliding rod is provided with a guide plate near the front end position, and the front end of the sliding sleeve is provided with a groove, and the guide plate and the groove are matched.

[0012] As a further description of the above technical solution:

[0013] The positioning assembly is provided with multiple groups, and multiple groups of the positioning assembly are symmetrically arranged with the center line of the mold as the symmetric axis.

[0014] As a further description of the above technical solution:

[0015] The wax feeding assembly comprises an upper support plate, the top end of the upper support plate is fixedly connected to the bottom end of the hydraulic rod output shaft, and the upper support plate and the lower support plate are the same type of components with the same shape.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the upper support plate is inserted with a fixing rod, the bottom end of the fixing rod is provided with a wax injection head, and the outer wall of the wax injection head is fixedly connected with a limiting ring.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the fixing rod is threadedly connected with a fixing ring, and the top end of the fixing rod is threadedly connected with a wax feeding pipe.

[0020] The utility model has the following beneficial effects:

[0021] 1、the utility model discloses a adjustable fixing mechanism and wax feeding assembly are set up, and when processing, the position of adjustable fixing mechanism and wax feeding assembly can be freely adjusted, and the processing point position can be freely changed by adjusting the position of fixing mechanism and wax feeding assembly, and the fixing mechanism can assist the operator to align the mold with the wax injection head, and the overall device is convenient to use.

[0022] 2、the utility model discloses a adjustable fixing mechanism and wax feeding assembly are set up, and when producing wax mould, the number of processing point positions can be added according to different production demands, so that multiple wax moulds can be processed simultaneously, and the overall device has high processing efficiency. DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic view of the overall device in the utility model;

[0024] Figure 2 It is the split schematic diagram of the three-dimensional structure of the fixing mechanism in the utility model;

[0025] Figure 3 It is the split schematic diagram of the three-dimensional structure of the wax feeding assembly in the utility model.

[0026] Legend:

[0027] 1, machine table; 2, fixing mechanism; 21, lower support plate; 22, fixing hole; 23, sliding sleeve; 24, positioning rod; 25, sliding rod; 26, guide plate; 27, groove; 28, threaded block; 29, baffle; 210, threaded rod; 211, knob; 3, lower mold; 4, upper mold; 5, hydraulic rod; 6, wax feeding assembly; 61, upper support plate; 62, fixing rod; 63, wax injection head; 64, limiting ring; 65, fixing ring; 66, wax feeding pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Reference Figure 1 - Figure 3The utility model provides a kind of wax mould forming device for precision casting, including the machine table 1 for supporting overall device, the top of the inner wall of machine table 1 is equipped with the hydraulic rod 5 for driving wax feeding assembly 6 to move, the bottom of the inner wall of machine table 1 is provided with the fixed mechanism 2 for assisting operator to position mould, fixed mechanism 2 includes the positioning assembly for realizing mould positioning and the fine adjustment assembly for fine adjustment positioning position, and positioning assembly includes the lower support plate 21 for supporting mould, the bottom of lower support plate 21 is fixedly connected at the bottom of the inner wall of machine table 1, the top of lower support plate 21 is provided with the fixed hole 22 for accommodating positioning rod 24, lower mould 3 is placed at the top of lower support plate 21, upper mould 4 is inserted at the top of lower mould 3, and lower mould 3 and upper mould 4 can be formed into complete mould after splicing, wax injection hole is formed at the top of upper mould 4, and wax liquid can be injected into upper mould 4 and lower mould 3 inside by wax injection hole, positioning rod 24 is inserted into the inner wall of fixed hole 22 and the number is multiple groups, the top of one group of positioning rod 24 is fixedly connected with the sliding sleeve 23 for accommodating sliding rod 25, the front end of sliding sleeve 23 is penetrated and is slidably connected with sliding rod 25 for limiting the left and right positions of lower mould 3, the top of another group of positioning rod 24 is fixedly connected at the bottom of sliding rod 25, and the horizontal position of sliding sleeve 23 and sliding rod 25 can be fixed by using positioning rod 24, and the bottom of hydraulic rod 5 is provided with wax feeding assembly 6 for inputting wax liquid into the inside of upper mould 4.

[0030] With reference to Figure 1 - Figure 3 Fine adjustment assembly includes the threaded block 28 for supporting overall fine adjustment assembly, the right end of threaded block 28 is fixedly connected at the left end of sliding sleeve 23 near rear end position, the front end of threaded block 28 is penetrated and is threadedly connected with the threaded rod 210 for driving baffle 29 to move, the rear end of threaded rod 210 is rotatably connected with baffle 29 for limiting the front and rear positions of lower mould 3, the front end of threaded rod 210 is fixedly connected with knob 211 for facilitating operator to rotate threaded rod 210, the right end of sliding rod 25 is provided with guide plate 26 for facilitating operator to push lower mould 3 into the middle position of two groups of fixed mechanism 2 near front end position, the front end of sliding sleeve 23 is provided with recess 27 for accommodating guide plate 26, guide plate 26 and recess 27 are matched, when sliding rod 25 is inserted into the inside of sliding sleeve 23, guide plate 26 can be inserted into the inside of recess 27.

[0031] With reference to Figure 1 - Figure 3The positioning assembly is provided with multiple groups, and the multiple groups of positioning assemblies are symmetrically arranged with the center line of the lower mold 3 as the symmetric axis, and two groups of positioning assemblies can limit the left and right positions of the lower mold 3 respectively. Since the length and width of the common mold are standard sizes, the position of the fixing hole 22 can be adapted to the common mold. The wax feeding assembly 6 comprises an upper supporting plate 61 for supporting the whole wax feeding assembly 6, the top end of the upper supporting plate 61 is fixedly connected to the bottom end of the output shaft of the hydraulic rod 5, the upper supporting plate 61 and the lower supporting plate 21 are the same type of components with the same shape, the fixing hole 22 at the bottom end of the upper supporting plate 61 corresponds to the fixing hole 22 at the top end of the lower supporting plate 21, the bottom end of the upper supporting plate 61 is inserted with a fixing rod 62 for fixing the wax injection head 63, the bottom end of the fixing rod 62 is provided with the wax injection head 63 for injecting wax liquid into the inside of the upper mold 4, the outer wall of the wax injection head 63 is fixedly connected with a limiting ring 64 for limiting the height position of the wax injection head 63, the outer wall of the fixing rod 62 is threadedly connected with a fixing ring 65 for fixing the fixing rod 62, and the top end of the fixing rod 62 is threadedly connected with a wax feeding pipe 66 for feeding wax liquid into the inside of the fixing rod 62.

[0032] Working principle: before processing, the processing position of the whole device needs to be debugged, and the specific debugging method is that the sliding sleeve 23 and the sliding rod 25 are first adjusted to be the same length as the lower mold 3, and then the sliding sleeve 23 and the sliding rod 25 are inserted into the inside of the corresponding fixing hole 22 at the top end of the lower supporting plate 21 according to the width of the lower mold 3, so that the left and right positions of the processing point are fixed, and then the wax injection head 63 and the wax injection port at the top end of the upper mold 4 are corresponded, the knob 211 is rotated to drive the threaded rod 210 to rotate, and the threaded rod 210 is rotated to drive the baffle 29 to move forward and backward, and the forward and backward positions of the baffle 29 are adjusted to change the forward and backward positions of the lower mold 3 during fixing, so that the liquid injection port at the top end of the upper mold 4 is aligned with the wax injection head 63.

[0033] When the wax feeding assembly 6 needs to be disassembled, the wax feeding pipe 66 can be rotated to separate it from the fixing rod 62, then the fixing ring 65 is rotated to detach it from the outer wall of the fixing rod 62, and finally the fixing rod 62 is moved downward to detach it from the inner wall of the upper supporting plate 61, so that the disassembly of the wax feeding assembly 6 is completed.

[0034] Finally, it should be pointed out that the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A wax molding device for precision casting, comprising a machine table (1), a hydraulic rod (5) is installed at the top of the inner wall of the machine table (1), characterized in that: The bottom end of the inner wall of the machine table (1) is provided with a fixing mechanism (2), the fixing mechanism (2) comprises a positioning assembly and a fine adjustment assembly, the positioning assembly comprises a lower support plate (21), the bottom end of the lower support plate (21) is fixedly connected to the bottom end of the inner wall of the machine table (1), the top end of the lower support plate (21) is provided with a fixing hole (22), the top end of the lower support plate (21) is placed with a lower mold (3), the top end of the lower mold (3) is inserted with an upper mold (4), the inner wall of the fixing hole (22) is inserted with a positioning rod (24) and the number is multiple groups, wherein the top end of one group of the positioning rod (24) is fixedly connected with a sliding sleeve (23), the front end of the sliding sleeve (23) penetrates and is slidingly connected with a sliding rod (25), the top end of another group of the positioning rod (24) is fixedly connected to the bottom end of the sliding rod (25), and the bottom end of the hydraulic rod (5) is provided with a wax feeding assembly (6).

2. A wax pattern forming apparatus for precision casting according to claim 1, wherein: The fine adjustment assembly comprises a threaded block (28), the right end of the threaded block (28) is fixedly connected to the left end of the sliding sleeve (23) close to the rear end position, and the front end of the threaded block (28) penetrates and is threadedly connected with a threaded rod (210).

3. A wax pattern forming apparatus for precision casting according to claim 2, wherein: The rear end of the threaded rod (210) is rotatably connected with a baffle (29), and the front end of the threaded rod (210) is fixedly connected with a knob (211).

4. A wax pattern forming apparatus for precision casting according to claim 1, wherein: The right end of the sliding rod (25) is provided with a guide plate (26) close to the front end position, the front end of the sliding sleeve (23) is provided with a groove (27), and the guide plate (26) and the groove (27) are matched.

5. A wax pattern forming apparatus for precision casting according to claim 1, wherein: The positioning assembly is provided with multiple groups, and multiple groups of the positioning assembly are symmetrically arranged about the center line of the lower mold (3) as the symmetric axis.

6. A wax pattern forming apparatus for precision casting according to claim 1, wherein: The wax feeding assembly (6) comprises an upper support plate (61), the top end of the upper support plate (61) is fixedly connected to the bottom end of the output shaft of the hydraulic rod (5), and the upper support plate (61) and the lower support plate (21) are the same type of components with the same shape.

7. A wax pattern forming apparatus for precision casting according to claim 6, wherein: The bottom end of the upper support plate (61) is inserted with a fixing rod (62), the bottom end of the fixing rod (62) is mounted with a wax injection head (63), and the outer wall of the wax injection head (63) is fixedly connected with a limiting ring (64).

8. A wax pattern forming apparatus for precision casting according to claim 7, wherein: The outer wall of the fixing rod (62) is threadedly connected with a fixing ring (65), and the top end of the fixing rod (62) is threadedly connected with a wax feeding pipe (66).

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