A composite turntable body and a preparation method thereof

Abstract

The present invention relates to the field of turning-milling composite machine tools or aerospace, and specifically to a composite turntable body and a preparation method thereof. The composite turntable body includes a skeleton made of metal material, a coil pipe made of metal material, and a resin cured body that combines the skeleton and the coil pipe. The skeleton includes a skeleton cylinder, and the lower end of the skeleton cylinder extends outward to form a skeleton disk. A plurality of hollowed-out weight-reducing grooves are circumferentially arrayed on the skeleton cylinder. The coil pipe is spiral-shaped, and both ends respectively pass through one or two of the hollowed-out weight-reducing grooves on the skeleton cylinder and are fixedly connected to a water inlet and a water outlet. The resin cured body includes a resin cylinder. A plurality of embedding teeth corresponding one by one to the hollowed-out weight-reducing grooves are circumferentially arrayed on the outer wall of the resin cylinder. A spiral groove corresponding to the contour of the coil pipe is opened on the outer wall of the resin cylinder. Two through holes for the water inlet or the water outlet to pass through are opened on one or two of the embedding teeth, and the two through holes communicate with the spiral groove. The present invention realizes lightweight on the basis of not reducing the structural strength.

Description

Technical Field

[0001] The invention relates to a turning-milling compound machine tool or the field of aerospace, and in particular to a compound turntable body and a preparation method thereof. Background Art

[0002] At present, the turntable body of the turntable is mainly made of traditional cast iron, cast steel and other forms. For large turntables, the weight is very large, which increases the labor intensity of workers in machining, mechanical assembly and other links, and does not meet the development trend of lightweight products. In addition, the turntable body is generally close to the stator of the direct drive motor during operation. The heat generated by the motor during operation will cause the temperature of the turntable body to rise. The high temperature of the turntable body will cause slight changes in the bed and tooling that are in contact with it, thereby affecting the processing accuracy of the workpiece, especially when manufacturing some heat-sensitive materials, which will result in adverse results or even waste. Summary of the invention

[0003] In order to solve the problems that the traditional material used for the turntable is too heavy, the labor intensity of workers in machining or assembly is increased, and the high temperature of the turntable during operation affects the machining accuracy of the workpiece, according to one aspect of the present invention, a composite turntable is provided, and the technical solution adopted is:

[0004] A composite turntable body comprises a metal frame, a metal coil and a resin solidified body combining the frame and the coil; the frame comprises a frame tube, the lower end of which extends outward to form a frame disk, and a plurality of hollow weight-reducing grooves are arranged in a circumferential array on the frame tube; the coil is spiral-shaped, and the two ends of the coil respectively pass through one or two of the hollow weight-reducing grooves on the frame tube and are fixedly connected to a water inlet and a water outlet; the resin solidified body comprises a resin tube, a plurality of embedded teeth corresponding to the hollow weight-reducing grooves are arranged in a circumferential array on the outer wall of the resin tube, and a spiral groove corresponding to the contour of the coil is arranged on the outer wall of the resin tube, wherein one or two of the embedded teeth are provided with two through holes for the water inlet or the water outlet to pass through, and the two through holes are communicated with the spiral groove.

[0005] Compared with the prior art, the present invention uses a metal frame, a reduction material coil and resin for fixing, which greatly reduces the weight without reducing its structural strength and has the function of dissipating the heat generated by the stator of the direct drive motor, and utilizes the thermal insulation of the resin to prevent the turntable body from temperature rise.

[0006] Furthermore, the outer wall of the coil and the inner wall of the skeleton tube are transitionally matched or clearance-matched.

[0007] Further, the inner wall of the coil is coplanar with the inner wall of the resin cylinder.

[0008] Furthermore, the outer end surface of the embedded tooth is coplanar with the outer wall of the framework tube.

[0009] Furthermore, the upper end surface of the resin cylinder is coplanar with the upper end surface of the skeleton cylinder.

[0010] Furthermore, the lower end surface of the resin cylinder is coplanar with the lower end surface of the skeleton disk.

[0011] Furthermore, the cross-sectional profile of the coiled pipe is a rounded rectangle.

[0012] According to another aspect of the present invention, there is also provided a method for preparing a composite turntable body, comprising the following steps:

[0013] S1. Place the coiled pipe inside the skeleton, so that the water inlet and the water outlet of the coiled pipe penetrate through one or two hollowed-out weight-reducing grooves.

[0014] S2. Sheath the skeleton and the coiled pipe on the inner mold. The inner mold includes an inner mold cylinder and an inner mold disk that are integrally connected. The height of the inner mold cylinder is greater than or equal to the height of the skeleton, and the outer diameter of the inner mold cylinder is less than or equal to the inner diameter of the coiled pipe; the lower surface of the skeleton disk abuts against the upper surface of the inner mold disk, and the inner mold cylinder is concentric with the skeleton cylinder and the coiled pipe.

[0015] S3. Sheath an outer mold on the outside of the skeleton. The outer mold includes an outer mold cylinder. Outer mold through holes are opened at the positions corresponding to the water inlet and the water outlet of the coiled pipe on the outer mold cylinder. The height of the outer mold cylinder is greater than or equal to the height of the skeleton, and the inner diameter of the outer mold cylinder is greater than or equal to the outer diameter of the skeleton cylinder; make the water inlet and the water outlet of the coiled pipe respectively pass through two outer mold through holes to ensure that the outer mold cylinder is concentric with the inner mold cylinder.

[0016] S4. Inject a paste-like resin that can be cured by heat, light, or moisture into the cavity enclosed by the outer mold and the inner mold, and then perform heat curing, light curing, or moisture curing.

[0017] S5. Remove the outer mold and the inner mold.

[0018] Furthermore, the resin is phenolic resin or epoxy resin.

[0019] Furthermore, after removing the outer mold and the inner mold, machining is performed, including fully exposing the inner wall of the coiled pipe to the resin cured body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the composite turntable body of the present invention.

[0021] Figure 2 is Figure 1 the top view of

[0022] Figure 3 is Figure 2 the sectional view taken along line B-B.

[0023] Figure 4 is a schematic structural diagram of the skeleton of the present invention.

[0024] Figure 5 is a schematic structural diagram and a partial enlarged view of the coiled pipe of the present invention.

[0025] Figure 6 It is a schematic structural view of the resin solidified body of the present invention.

[0026] Figure 7 It is a schematic structural view of the inner mold used when preparing the composite turntable body of the present invention.

[0027] Figure 8 It is a schematic structural view of the outer mold used when preparing the composite turntable body of the present invention.

[0028] Figure 9 It is an assembly schematic view of the inner mold, outer mold, skeleton and coil pipe used when preparing the composite turntable body of the present invention.

[0029] Reference numerals in the figure: skeleton - 100, skeleton cylinder - 101, skeleton disk - 102, hollowed - out weight - reducing groove - 103; coil pipe - 200, water inlet - 201, water outlet - 202; resin solidified body - 300, resin cylinder - 301, embedded tooth - 302, spiral groove - 303, through - hole - 304; inner mold - 400, inner mold cylinder - 401, inner mold disk - 402; outer mold - 500, outer mold cylinder - 501, outer mold through - hole - 502. Specific Embodiments

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "communicated" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] Example 1, as Figures 1-6As shown in the figure, a composite turntable body includes a metal skeleton 100, a metal coil pipe 200, and a resin cured body 300 that combines the skeleton 100 and the coil pipe 200; the skeleton 100 includes a skeleton cylinder 101, the lower end of the skeleton cylinder 101 extends outward to form a skeleton disk 102, and a plurality of hollowed-out weight-reducing grooves 103 are circumferentially arrayed on the skeleton cylinder 101; the coil pipe 200 is spiral, and both ends respectively pass through one or two of the hollowed-out weight-reducing grooves 103 on the skeleton cylinder 101 and are fixedly connected to a water inlet 201 and a water outlet 202; the resin cured body 300 includes a resin cylinder 301, a plurality of embedding teeth 302 corresponding one by one to the hollowed-out weight-reducing grooves 103 are circumferentially arrayed on the outer wall of the resin cylinder 301, a spiral groove 303 corresponding to the contour of the coil pipe 200 is opened on the outer wall of the resin cylinder 301, and two through holes 304 for the water inlet 201 or the water outlet 202 to pass through are opened on one or two of the embedding teeth 302, and the two through holes 304 communicate with the spiral groove 303.

[0034] In another preferred embodiment, the outer wall of the coil pipe 200 is in transitional fit or clearance fit with the inner wall of the skeleton cylinder 101.

[0035] In another preferred embodiment, the inner wall of the coil pipe 200 is coplanar with the inner wall of the resin cylinder 301.

[0036] In another preferred embodiment, the outer end face of the embedding tooth 302 is coplanar with the outer wall of the skeleton cylinder 101.

[0037] In another preferred embodiment, the upper end face of the resin cylinder 301 is coplanar with the upper end face of the skeleton cylinder 101.

[0038] In another preferred embodiment, the lower end face of the resin cylinder 301 is coplanar with the lower end face of the skeleton disk 102.

[0039] In another preferred embodiment, the cross-sectional contour of the coil pipe 200 is a rounded rectangle. This is beneficial to increasing the contact area between the coil pipe and the direct drive motor stator or adjacent components and enhancing the heat conduction performance.

[0040] Embodiment 2

[0041] A preparation method of the composite turntable body described in Embodiment 1 includes the following steps:

[0042] S1. Place the coil pipe 200 in the skeleton 100 so that the water inlet 201 and the water outlet 202 of the coil pipe 200 pass through one or two of the hollowed-out weight-reducing grooves 103;

[0043] S2. Sheath the framework 100 and the coil pipe 200 on the inner mold 400. The inner mold 400 includes an inner mold cylinder 401 and an inner mold plate 402 that are integrated. The height of the inner mold cylinder 401 is greater than or equal to the height of the framework 100, and the outer diameter of the inner mold cylinder 401 is less than or equal to the inner diameter of the coil pipe 200. The lower surface of the framework plate 102 abuts against the upper surface of the inner mold plate 402, and the inner mold cylinder 401 is concentric with the framework cylinder 101 and the coil pipe 200.

[0044] S3. Sheath an outer mold 500 on the outside of the framework 100. The outer mold includes an outer mold cylinder 501. Outer mold through-holes 502 are formed in the outer mold cylinder 501 corresponding to the water inlet 201 and the water outlet 202 of the coil pipe 200. The height of the outer mold cylinder 501 is greater than or equal to the height of the framework 100, and the inner diameter of the outer mold cylinder 501 is greater than or equal to the outer diameter of the framework cylinder 101. Pass the water inlet 201 and the water outlet 202 of the coil pipe 200 through 2 outer mold through-holes 502 respectively to ensure that the outer mold cylinder 501 is concentric with the inner mold cylinder 401.

[0045] S4. Inject a paste-like resin that can be thermally cured, photocured or moisture-cured into the cavity enclosed by the outer mold 500 and the inner mold 400, and then perform thermal curing, photocuring or moisture curing.

[0046] S5. Remove the outer mold 500 and the inner mold 400.

[0047] In another preferred embodiment, the resin is phenolic resin or epoxy resin.

[0048] In another preferred embodiment, machining is performed after removing the outer mold 500 and the inner mold 400, including fully exposing the inner wall of the coil pipe 200 to the resin cured body 300.

[0049] The parts not described in detail in the present invention are the prior art or common general knowledge in the art.

Claims

1. A composite turntable body, characterized in that, it comprises: a skeleton (100) made of metal material, a coil pipe (200) made of metal material, and a resin cured body (300) that combines the skeleton (100) and the coil pipe (200); the skeleton (100) includes a skeleton cylinder (101), the lower end of the skeleton cylinder (101) extends outward to form a skeleton disk (102), and a plurality of hollowed-out weight-reducing grooves (103) are circumferentially arrayed on the skeleton cylinder (101); the coil pipe (200) is spiral, and both ends respectively pass through one or two of the hollowed-out weight-reducing grooves (103) on the skeleton cylinder (101) and are fixedly connected to a water inlet (201) and a water outlet (202); the resin cured body (300) includes a resin cylinder (301), a plurality of embedding teeth (302) corresponding to the hollowed-out weight-reducing grooves (103) one by one are circumferentially arrayed on the outer wall of the resin cylinder (301), a spiral groove (303) corresponding to the contour of the coil pipe (200) is formed on the outer wall of the resin cylinder (301), and two through holes (304) for the water inlet (201) or the water outlet (202) to pass through are formed on one or two of the embedding teeth (302), and the two through holes (304) communicate with the spiral groove (303).

2. The composite turntable body according to claim 1, characterized in that, the outer wall of the coil pipe (200) is in transition fit or clearance fit with the inner wall of the skeleton cylinder (101).

3. The composite turntable body according to claim 1, characterized in that, the inner wall of the coil pipe (200) is coplanar with the inner wall of the resin cylinder (301).

4. The composite turntable body according to claim 1, characterized in that, the outer end surface of the embedding tooth (302) is coplanar with the outer wall of the skeleton cylinder (101).

5. The composite turntable body according to claim 1, characterized in that, the upper end surface of the resin cylinder (301) is coplanar with the upper end surface of the skeleton cylinder (101).

6. The composite turntable body according to claim 1, characterized in that, the lower end surface of the resin cylinder (301) is coplanar with the lower end surface of the skeleton disk (102).

7. The composite turntable body according to claim 1, characterized in that, the cross-sectional contour of the coil pipe (200) is a rounded rectangle.

8. A preparation method of the composite turntable body according to any one of claims 1-7, characterized in that, it includes the following steps: S1. Place the coil pipe (200) inside the skeleton (100) so that the water inlet (201) and the water outlet (202) of the coil pipe (200) pass through one or two of the hollowed-out weight-reducing grooves (103); S2. Sleeve the skeleton (100) and the coil pipe (200) on an inner mold (400), the inner mold (400) includes an inner mold cylinder (401) and an inner mold disk (402) connected as a whole, the height of the inner mold cylinder (401) is greater than or equal to the height of the skeleton (100), and the outer diameter of the inner mold cylinder (401) is less than or equal to the inner diameter of the coil pipe (200); the lower surface of the skeleton disk (102) abuts against the upper surface of the inner mold disk (402), and the inner mold cylinder (401) is concentric with the skeleton cylinder (101) and the coil pipe (200); S3. Sheath an outer mold (500) outside the framework (100). The outer mold includes an outer mold cylinder (501). Outer mold through-holes (502) are provided at positions corresponding to the water inlet (201) and the water outlet (202) of the coiled pipe (200) on the outer mold cylinder (501). The height of the outer mold cylinder (501) is greater than or equal to the height of the framework (100), and the inner diameter of the outer mold cylinder (501) is greater than or equal to the outer diameter of the framework cylinder (101); enable the water inlet (201) and the water outlet (202) of the coiled pipe (200) to pass through 2 outer mold through-holes (502) respectively to ensure that the outer mold cylinder (501) is concentric with the inner mold cylinder (401); S4. Inject a paste-like resin that can be thermally cured, photocured or moisture-cured into the cavity enclosed by the outer mold (500) and the inner mold (400), and then perform thermal curing, photocuring or moisture curing; S5. Demolish the outer mold (500) and the inner mold (400).

9. A method for preparing a composite turntable body according to claim 8, characterized in that, the resin is phenolic resin or epoxy resin.

10. A method for preparing a composite turntable body according to claim 8, characterized in that, after demolishing the outer mold (500) and the inner mold (400), perform machining, and the machining includes fully exposing the inner wall of the coiled pipe (200) to the resin cured body (300).

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