A thin-walled part inner cavity processing device and processing method

Abstract

The application belongs to the technical field of thin-walled part inner cavity processing, and discloses a thin-walled part inner cavity processing device and processing method, which comprises a main body base, the top of the main body base is fixedly connected with a fixed plate, a plurality of electric telescopic rods are distributed in a matrix mode in the main body base, the top of each electric telescopic rod is fixedly connected with a supporting block, the top of the fixed plate is clamped with a convenient positioning assembly, the cooperation of the supporting block and the locking assembly and other structures is arranged, thereby solving the problem that the auxiliary cushion block cannot be reused, the supporting block at the cavity position of the part body is moved upward to abut against the part body, the cavity of the part body is supported by the supporting block, the cooperation of the fixed plate and the convenient positioning assembly and other structures is arranged, thereby facilitating the positioning of the part body, and the supporting positioning member is arranged at the middle part of the four square holes of the fixed plate.

Description

Technical Field

[0001] This invention belongs to the field of thin-walled part internal cavity processing technology, specifically a thin-walled part internal cavity processing device and processing method. Background Technology

[0002] Thin-walled parts are characterized by high strength, compact structure, light weight, good overall performance, material saving, and beautiful appearance. They are widely used in many fields such as automobiles, electronics, aerospace, and medical devices.

[0003] Thin-walled parts are relatively thin due to factors such as process and materials. When thin-walled parts have cavities, they are prone to deformation during processing, so auxiliary support is required. Traditionally, thin-walled parts are supported and positioned by cutting auxiliary pads that meet the height requirements. When the production quantity of processed parts is small, this method will result in a large material consumption and requires different auxiliary pads to be cut each time. Furthermore, it is quite troublesome to position the parts. Therefore, this paper provides a processing device and method for the inner cavity of thin-walled parts. Summary of the Invention

[0004] To address the problems mentioned in the background art, such as the inability to reuse auxiliary pads and the inconvenience of positioning, the present invention provides a processing device and method for machining the inner cavity of thin-walled parts.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a thin-walled part internal cavity processing device, comprising a main body base, a fixing plate fixedly connected to the top of the main body base, the fixing plate being used to place the part body, multiple electric telescopic rods arranged in a matrix inside the main body base, each electric telescopic rod having a support block fixedly connected to its top, a convenient positioning component snapped into the top of the fixing plate, the part body being placed on the top of the fixing plate, multiple support positioning components being arranged around the part body, and a locking component being arranged inside the main body base; The convenient positioning component is used to fix the support positioning component. The convenient positioning component includes a support housing. The support housing has an inclined cavity inside. A lifting ring and a snap-fit ​​block are movably connected inside the inclined cavity. A first bolt is threaded inside the lifting ring. The locking assembly is used to fix the support block. The locking assembly includes a support plate. The main body base has multiple toothed strips linearly distributed inside. The top of the support plate has multiple extrusion protrusions linearly distributed on the top. The four corners of the support plate are threaded with second bolts.

[0006] Preferably, a cavity is provided between the main base and the fixing plate, and a square hole is provided at the upper end of the fixing plate to match the number of support blocks. The support blocks are slidably connected inside the fixing plate.

[0007] Preferably, the support housing is located in the middle of the four square holes at the top of the fixing plate, the inclined cavity is inclined upward, and the outer side of the lifting ring is provided with an annular groove that connects to the snap-fit ​​block.

[0008] Preferably, the snap-fit ​​block penetrates through the bottom of the support housing and extends to the lower side of the support housing, and the bottom of the snap-fit ​​block is provided with a locking protrusion that snaps into the fixing plate.

[0009] Preferably, the part body has multiple cavities on both the upper and lower surfaces, the support positioning member is located outside the part body and is fixedly connected to the part body, the support positioning member is fixedly engaged with the support housing by the first bolt, and the support positioning member is located in the middle of the four square holes on the fixed plate.

[0010] Preferably, when the part body needs to be flipped after one side has been processed, the support block corresponding to the snap-fit ​​block snapping into the square hole is moved downward, the part body is flipped over and the snap-fit ​​block is inserted into the square hole on the corresponding fixing plate. Then, the support positioning member is aligned with the support housing and inserted. Tightening the first bolt drives the lifting ring to rise, which in turn drives the snap-fit ​​block to rise. At the same time, the inclined cavity limits the snap-fit ​​block, causing the snap-fit ​​block to tighten inward and snap-fit ​​with the fixing plate, thus fixing the support positioning member and the part body.

[0011] Preferably, the support plate is slidably connected to the inner cavity of the main body base, and the toothed strip is slidably connected to the inside of the main body base. Both the support plate and the toothed strip are located below the fixing plate, and the toothed strip is distributed between the support blocks for snapping and fixing the support blocks.

[0012] Preferably, the extrusion protrusion is located between two toothed strips, and the lower end of each toothed strip is provided with a downwardly converging inclined portion. The extrusion protrusion abuts against the toothed strips, and the second bolt passes through the fixing plate and the main body base and extends into the cavity of the main body base.

[0013] Preferably, after the part body is flipped and fixed, the support block located in the cavity of the part body is moved upward to abut against the part body, and the support block supports the cavity of the part body. Then, the second bolt is turned to make the support plate drive the extrusion protrusion to move upward, so that the extrusion protrusion extrudes the toothed strip and pushes the toothed strip towards the support block to clamp and fix the support block.

[0014] The present invention also provides a method for machining the internal cavity of a thin-walled part, comprising the following steps: S1. Place the part body on the fixed plate for clamping and fixing. According to the preset model, cut out the upper part of the part body and the support positioning part. Then remove the semi-finished part body. Move the support block corresponding to the support positioning part downward. Then insert the snap block into the fixed plate. Then align the support positioning part with the support housing and insert it. Tighten the first bolt to fix the part body and the support positioning part. S2. According to the preset model, the support block located in the cavity of the semi-finished part body is moved upward so that the support block supports the semi-finished part body. Then, the second bolt is turned so that the support plate drives the extrusion protrusion to move upward and extrude the toothed strip. The toothed strip clamps and fixes the support block.

[0015] This invention solves the problem of the auxiliary pad block not being reusable by setting up a support block and locking components. By moving the support block located in the cavity of the part body upward to abut against the part body, the support block supports the cavity of the part body. Then, the support plate drives the extrusion protrusion to move upward, so that the extrusion protrusion extrudes the toothed strip and pushes the toothed strip towards the support block, thereby clamping and fixing the support block.

[0016] This invention facilitates the positioning of the part body by using a combination of a fixed plate and a convenient positioning component. The supporting positioning component is located in the center of four square holes on the fixed plate. The snap-fit ​​block is inserted into the corresponding square hole on the fixed plate, and then the supporting positioning component is aligned with the supporting housing and inserted to position and fix the part body and the supporting positioning component. Finally, the first bolt is tightened to make the locking protrusion at the bottom of the snap-fit ​​block engage with the fixed plate, thus fixing the supporting positioning component and the part body and completing the positioning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the positioning of the part body of the present invention; Figure 3 This is a schematic diagram of the overall positioning component of the present invention; Figure 4 This is an enlarged cross-sectional view of the convenient positioning component of the present invention; Figure 5 This is a schematic diagram of the connection between the snap-fit ​​block and the fixing plate of the present invention; Figure 6 This is a cross-sectional view of the locking component of the present invention; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the connection of the extrusion protrusion in this invention; Figure 9This is a schematic diagram of the overall locking component of the present invention.

[0018] In the diagram: 1. Main base; 2. Fixing plate; 3. Electric telescopic rod; 4. Support block; 5. Convenient positioning component; 501. Support housing; 502. Sloping cavity; 503. Lifting ring; 504. Snap-fit ​​block; 505. First bolt; 6. Part body; 7. Support positioning component; 8. Locking component; 801. Support plate; 802. Toothed strip; 803. Extrusion protrusion; 804. Second bolt. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 9 As shown, the present invention provides a thin-walled part internal cavity processing device, including a main base 1, a fixing plate 2 fixedly connected to the top of the main base 1, a part body 6 placed on the fixing plate 2, a plurality of electric telescopic rods 3 arranged in a matrix inside the main base 1, a support block 4 fixedly connected to the top of each electric telescopic rod 3, a convenient positioning component 5 snapped into the top of the fixing plate 2, a part body 6 placed on the top of the fixing plate 2, a plurality of support positioning components 7 arranged around the part body 6, and a locking component 8 arranged inside the main base 1; The convenient positioning component 5 is used to fix the support positioning component 7. The convenient positioning component 5 includes a support housing 501. The support housing 501 has an inclined cavity 502 inside. A lifting ring 503 and a snap-fit ​​block 504 are movably connected inside the inclined cavity 502. A first bolt 505 is threaded inside the lifting ring 503. The locking component 8 is used to fix the support block 4. The locking component 8 includes a support plate 801. Multiple toothed strips 802 are linearly distributed inside the main body base 1. Multiple extrusion protrusions 803 are linearly distributed on the top of the support plate 801. The support plate 801 is threaded with second bolts 804 at its four corners.

[0021] like Figure 2 and Figure 9 As shown, a cavity is provided between the main base 1 and the fixing plate 2. The upper end of the fixing plate 2 has square holes that match the number of support blocks 4. The support blocks 4 are slidably connected inside the fixing plate 2.

[0022] The above solution is adopted: by setting a cavity between the main base 1 and the fixing plate 2, the iron filings are prevented from accumulating inside the fixing plate 2 after the support block 4 moves downward. A square hole matching the number of support blocks 4 is opened at the upper end of the fixing plate 2, which can facilitate the positioning of the support positioning component 7.

[0023] like Figures 3 to 5 As shown, the support housing 501 is located in the middle of the four square holes at the top of the fixing plate 2. The inclined cavity 502 is inclined upward. The outer side of the lifting ring 503 is provided with an annular groove that connects with the locking block 504. The locking block 504 penetrates the bottom of the support housing 501 and extends to the lower side of the support housing 501. The bottom of the locking block 504 is provided with a locking protrusion that engages with the fixing plate 2.

[0024] The above solution is adopted as follows: by setting the support housing 501 in the middle of the four square holes at the top of the fixing plate 2, the position of the positioning support housing 501 can be easily fixed. The inclined cavity 502 is set in an upward-convex shape so that the locking block 504 can retract inward when it rises. An annular groove is opened on the outside of the lifting ring 503 to connect with the locking block 504, so that the lifting ring 503 can drive the locking block 504 to move upward. A locking protrusion is set at the bottom of the locking block 504 to engage with the fixing plate 2, so that the support housing 501 can be easily and stably fixed on the fixing plate 2 through the locking block 504.

[0025] like Figures 2 to 5 As shown, multiple cavities are provided on both the upper and lower surfaces of the part body 6. The support positioning component 7 is located outside the part body 6 and is fixedly connected to the part body 6. The support positioning component 7 is fixedly snapped to the support housing 501 by the first bolt 505. The support positioning component 7 is located in the middle of the four square holes on the fixing plate 2.

[0026] The above scheme is adopted: the design of the support positioning component 7 facilitates the positioning of the part body 6, and at the same time provides a certain support for the part body 6 when it is being cut. The support positioning component 7 is fixedly connected to the support housing 501 by the first bolt 505, which can quickly position and fix the part body 6 and the support positioning component 7.

[0027] like Figures 2 to 5As shown, when the part body 6 needs to be flipped after one side is finished, the support block 4 corresponding to the snap-fit ​​block 504 snap-fit ​​square hole position is moved downward, the part body 6 is flipped and the snap-fit ​​block 504 is inserted into the square hole on the corresponding fixing plate 2. Then, the support positioning member 7 is aligned with the support housing 501 and inserted. When the first bolt 505 is turned, the lifting ring 503 is raised, which causes the lifting ring 503 to drive the snap-fit ​​block 504 to rise. At the same time, the inclined cavity 502 limits the snap-fit ​​block 504, so that the snap-fit ​​block 504 is tightened inward and fixedly snapped with the fixing plate 2, thus fixing the support positioning member 7 and the part body 6.

[0028] Using the above scheme: When the part body 6 needs to be flipped after one side has been processed, the support block 4 corresponding to the snap-fit ​​block 504 snaps into the square hole position is moved downward, the part body 6 is flipped over and the snap-fit ​​block 504 is inserted into the square hole on the corresponding fixing plate 2. Then, the support positioning member 7 is aligned with the support housing 501 and inserted to position and fix the part body 6 and the support positioning member 7. Then, the first bolt 505 is turned to drive the lifting ring 503 to rise, so that the lifting ring 503 drives the snap-fit ​​block 504 to rise. At the same time, the inclined cavity 502 limits the snap-fit ​​block 504, so that the snap-fit ​​block 504 is tightened inward, and the locking protrusion at the bottom of the snap-fit ​​block 504 is fixedly snapped into the fixing plate 2, fixing the support positioning member 7 and the part body 6 to ensure the accuracy of cutting.

[0029] like Figure 6 , Figure 7 and Figure 8 As shown, the support plate 801 is slidably connected to the inner cavity of the main body base 1, and the toothed strip 802 is slidably connected to the inside of the main body base 1. Both the support plate 801 and the toothed strip 802 are located below the fixing plate 2. The toothed strip 802 is distributed between the support blocks 4 and is used to snap and fix the support blocks 4. The extrusion protrusion 803 is located between the two toothed strips 802. The lower end of each toothed strip 802 is provided with a downwardly converging inclined part. The extrusion protrusion 803 abuts against the toothed strip 802. The second bolt 804 passes through the fixing plate 2 and the main body base 1 and extends into the cavity of the main body base 1.

[0030] The above solution is adopted as follows: By setting toothed strips 802, the toothed strips 802 clamp and fix the support block 4 after the support block 4 has moved. The design of the support plate 801 can easily push the extrusion protrusion 803 to move upward, so that the extrusion second bolt 804 can clamp the support block 4. When cutting the cavity of the part body 6, the support block 4 supports it to prevent the part body 6 from deforming. The lower end of the toothed strips 802 is provided with a downward-convex inclined part, so that when the extrusion protrusion 803 pushes the toothed strips 802 to move, it can stably push the toothed strips 802 to move to both sides and will not be blocked by the toothed strips 802.

[0031] like Figures 6 to 9 As shown, after the part body 6 is flipped and fixed, the support block 4 located in the cavity of the part body 6 is moved upward to abut against the part body 6. The support block 4 supports the cavity of the part body 6. Then, the second bolt 804 is turned, causing the support plate 801 to drive the extrusion protrusion 803 to move upward, so that the extrusion protrusion 803 extrudes the toothed strip 802, pushing the toothed strip 802 toward the support block 4 to clamp and fix the support block 4.

[0032] The above scheme is adopted as follows: After the part body 6 is flipped and fixed, the support block 4 located in the cavity of the part body 6 is moved upward until it abuts against the part body 6. The support block 4 supports the cavity of the part body 6, so that the cavity of the part body 6 can be supported by the support block 4 during cutting, maintaining the rigidity of the part body 6 and preventing deformation. When the second bolt 804 is turned, the support plate 801 drives the extrusion protrusion 803 to move upward, so that the extrusion protrusion 803 extrudes the toothed strip 802, pushing the toothed strip 802 towards the support block 4, clamping and fixing the support block 4 to maintain the stability of the support block 4.

[0033] The present invention also provides a method for machining the internal cavity of a thin-walled part, comprising the following steps: S1. Place the part body 6 on the fixing plate 2 for clamping and fixing. According to the preset model, cut out the upper part of the part body 6 and the support positioning part 7. The use of the support positioning part 7 can conveniently position the part body 6 after it is flipped, and can also provide a certain support for the part body 6. Then, remove the semi-finished part body 6, move the support block 4 corresponding to the position of the support positioning part 7 downward, insert the snap-fit ​​block 504 into the fixing plate 2, and then insert the support positioning part 7 into the support housing 501. Tighten the first bolt 505. The first bolt 505 pulls the lifting ring 503 upward, and the lifting ring 503 drives the snap-fit ​​block 504 upward. At the same time, because the inclined cavity 502 limits the snap-fit ​​block 504, the snap-fit ​​block 504 is tightened inward and fixedly snapped with the fixing plate 2 to fix the part body 6 and the support positioning part 7. S2. According to the preset model, the support block 4 located in the cavity of the semi-finished part body 6 is moved upward so that the support block 4 supports the semi-finished part body 6. This prevents the part body 6 from deforming and being damaged during cutting because the thin-walled feature of the part body 6 cannot support the force generated by the cutting head. Then, the second bolt 804 is tightened so that the support plate 801 drives the extrusion protrusion 803 to move upward. The extrusion protrusion 803 extrudes the toothed strip 802 against the support block 4, so that the toothed strip 802 clamps and fixes the support block 4. This makes the support block 4 more stable in supporting the part body 6 and avoids situations such as tool trembling.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for machining the inner cavity of thin-walled parts, comprising a main body base (1), characterized in that: The main base (1) is fixedly connected to a fixed plate (2) at the top. Multiple electric telescopic rods (3) are arranged in a matrix inside the main base (1). Each electric telescopic rod (3) is fixedly connected to a support block (4) at the top. A convenient positioning component (5) is snapped into the top of the fixed plate (2). A part body (6) is placed on the top of the fixed plate (2). Multiple support positioning components (7) are arranged around the part body (6). A locking component (8) is arranged inside the main base (1). The convenient positioning component (5) is used to fix the support positioning component (7). The convenient positioning component (5) includes a support housing (501). The support housing (501) has an inclined cavity (502) inside. A lifting ring (503) and a snap-fit ​​block (504) are movably connected inside the inclined cavity (502). A first bolt (505) is threaded inside the lifting ring (503). The locking component (8) is used to fix the support block (4). The locking component (8) includes a support plate (801). The main body base (1) has multiple toothed strips (802) linearly distributed inside. The top of the support plate (801) has multiple extrusion protrusions (803) linearly distributed. The support plate (801) has a second bolt (804) threaded at the four corners. A cavity is provided between the main base (1) and the fixing plate (2). The upper end of the fixing plate (2) is provided with square holes that match the number of support blocks (4). The support blocks (4) are slidably connected inside the fixing plate (2). The support housing (501) is located in the middle of the four square holes at the top of the fixing plate (2), the inclined cavity (502) is inclined upward, and the outer side of the lifting ring (503) is provided with an annular groove that connects to the snap-fit ​​block (504). The snap-fit ​​block (504) penetrates the bottom of the support housing (501) and extends to the lower side of the support housing (501). The bottom of the snap-fit ​​block (504) is provided with a locking protrusion that snaps into the fixing plate (2). The support plate (801) is slidably connected to the inner cavity of the main body base (1), and the toothed strip (802) is slidably connected to the inside of the main body base (1). The support plate (801) and the toothed strip (802) are both located below the fixing plate (2). The toothed strip (802) is distributed between the support blocks (4) and is used to snap and fix the support blocks (4). The extrusion protrusion (803) is located between two toothed strips (802). The lower end of each toothed strip (802) is provided with a downwardly converging inclined portion. The extrusion protrusion (803) abuts against the toothed strip (802). The second bolt (804) passes through the fixing plate (2) and the main body base (1) and extends to the cavity of the main body base (1).

2. The thin-walled part internal cavity machining device according to claim 1, characterized in that: The part body (6) has multiple cavities on both the upper and lower sides. The support positioning component (7) is located outside the part body (6) and is fixedly connected to the part body (6). The support positioning component (7) is fixedly connected to the support housing (501) by the first bolt (505). The support positioning component (7) is located in the middle of the four square holes on the fixing plate (2).

3. The thin-walled part internal cavity machining device according to claim 1, characterized in that: When the part body (6) needs to be flipped after one side is finished, the corresponding snap-fit ​​block (504) is snapped into the support block (4) at the square hole position and moved downward, flipping the part body (6) and inserting the snap-fit ​​block (504) into the square hole on the corresponding fixing plate (2). Then, the support positioning piece (7) is aligned with the support housing (501) and inserted. Then, the first bolt (505) is turned to drive the lifting ring (503) to rise, so that the lifting ring (503) drives the snap-fit ​​block (504) to rise. At the same time, the inclined cavity (502) limits the snap-fit ​​block (504) to tighten inward and fix it with the fixing plate (2), thus fixing the support positioning piece (7) and the part body (6).

4. The thin-walled part internal cavity machining device according to claim 1, characterized in that: After the part body (6) is flipped and fixed, the support block (4) located in the cavity of the part body (6) is moved upward to abut against the part body (6). The support block (4) supports the cavity of the part body (6). Then, the second bolt (804) is turned to make the support plate (801) drive the extrusion protrusion (803) to move upward, so that the extrusion protrusion (803) extrudes the toothed strip (802) and pushes the toothed strip (802) toward the support block (4) to clamp and fix the support block (4).

5. A method for machining the inner cavity of a thin-walled part, using the machining apparatus for the inner cavity of a thin-walled part as described in any one of claims 1-4, characterized in that: Includes the following steps: S1. Place the part body (6) on the fixed plate (2) for clamping and fixing. According to the preset model, cut out the upper part of the part body (6) and the support positioning part (7). Then remove the semi-finished part body (6), move the support block (4) corresponding to the support positioning part (7) downward, insert the snap block (504) into the fixed plate (2), and then insert the support positioning part (7) into the support housing (501). Tighten the first bolt (505) to fix the part body (6) and the support positioning part (7). S2. According to the preset model, the support block (4) located in the cavity of the semi-finished part body (6) is moved upward so that the support block (4) supports the semi-finished part body (6). Then, the second bolt (804) is turned so that the support plate (801) drives the extrusion protrusion (803) to move upward and extrude the toothed strip (802). The toothed strip (802) clamps and fixes the support block (4).

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