A tooling for machining a circular ring blank into an arc-shaped part and a method thereof

Abstract

The invention provides a tool for machining a circular ring blank into an arc-shaped part, the circular ring blank comprising a surface to be machined and an annular cavity arranged in the surface to be machined, characterized in that the tool comprises a worktable for receiving the circular ring blank, a connecting mechanism arranged on the worktable and extending upward and allowing the annular cavity to pass through, and a fixing mechanism fixed to the connecting mechanism in a selected manner. The fixing mechanism is configured to apply a downward force to the circular ring blank and allow the machining area of the surface to be machined to be avoided. In this way, the circular ring blank can be fixed to the worktable in the vertical direction, so that the cutting end can cut the surface to be machined in a direction parallel to the axis of the circular ring blank. Thus, the machining process can be simplified, the machining process can be simplified, and the machining efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of circular ring blank processing technology, and in particular to a tooling and method for processing circular ring blanks into arc-shaped parts. Background Technology

[0002] In the field of machining, it is often necessary to perform tasks such as... Figure 1 The circular blank 10 shown is processed on the axially extending surface 101 to be processed, and the surface 101 to be processed is cut along a direction parallel to the axis, thereby obtaining several parts with arc-shaped end faces.

[0003] In the prior art, this processing technology usually involves placing the circular blank 10 on a triangular chuck (not shown in the figure), applying a radial inward force to the circular blank 10 along the circumference using the triangular chuck, thereby fixing the circular blank 10 on the worktable 1, then starting the cutting device 20, and cutting the surface 101 to be processed by the cutting end 201 of the cutting device 20, thereby completing the processing operation on the surface 101 to be processed.

[0004] While this method enables machining of the surface 101, it cannot satisfy the requirement for the cutting end 201 to continuously cut the annular blank 10 along a direction parallel to the axis. Specifically, after the cutting end 201 has finished cutting the annular blank 10 along a direction parallel to the axis, each cut part will move radially inward due to the radially inward force applied by the triangular chuck.

[0005] Therefore, in this processing method, during the cutting of the circular blank 10 along a direction parallel to the axis, a thickness allowance is usually left for the circular blank 10, and then another process is used to complete the cutting, thereby processing the circular blank into several arc-shaped parts. In this processing method, the processing steps are cumbersome, the processing flow is complicated, and the processing efficiency is low. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a tooling and method for machining circular ring blanks into arc-shaped parts. To achieve the above objectives, this invention employs the following technical solution:

[0007] A tooling for machining a circular blank into an arc-shaped part, the circular blank including a surface to be machined and an annular cavity disposed within the surface to be machined, characterized in that the tooling includes a worktable for receiving the circular blank, a connecting mechanism disposed on the worktable and extending upward therefrom, allowing passage through the annular cavity, and a fixing mechanism selectively fixed relative to the connecting mechanism.

[0008] The fixing mechanism is configured to apply a downward force to the annular blank and allow the machining area of ​​the surface to be machined to be avoided.

[0009] Furthermore, the fixing mechanism includes a fixing part that is fixed together with the connecting mechanism in a selected manner, and a limiting part that is disposed on the fixing part and extends radially outward for abutting against the annular blank.

[0010] Furthermore, the connecting mechanism includes a connecting rod that is relatively fixed to the worktable and extends upward to pass through the fixing part, and a locking part that allows the connecting rod to be fixed relative to it in a selectable manner and can limit the fixing part in the axial direction.

[0011] Furthermore, an external thread is provided along the connecting rod, and the locking part is configured as a nut that mates with the external thread to limit the fixing part during movement along the external thread.

[0012] Furthermore, the connecting mechanism is configured as at least two, and each of them is fixed relative to the fixing part to limit the movement of the fixing part along the circumferential direction.

[0013] Furthermore, the tooling also includes a positioning mechanism that is selectively fixed relative to the worktable for carrying the circular blank and positioning the placement position of the circular blank.

[0014] Furthermore, the positioning mechanism includes a disc body disposed on the worktable and capable of supporting the annular blank. A first countersunk hole is provided on the disc body, and a spiral fastener for fixing the positioning mechanism and the worktable together is selectively disposed in the first countersunk hole. An upwardly extending sidewall is also provided on the disc body, and the sidewall together with the disc body forms a cavity for accommodating the annular blank.

[0015] Furthermore, a reference mechanism is selectively fixed within the cavity. The reference mechanism is configured to support the annular blank and allow its end face to mate with the end face of the finished annular blank, so that the reference mechanism can provide a reference for the processing of the annular blank.

[0016] Furthermore, the reference mechanism includes a reference part, which is configured as a split structure and can be disposed within a cavity when enclosed, and allows its radially outer side to abut against the sidewall. The reference part is also provided with an upwardly extending side plate that avoids the processing area of ​​the surface to be processed. The side plate is configured to abut against the radially outer side of the annular blank, thereby positioning the annular blank.

[0017] According to a second aspect of the present invention, a method for machining a circular annular blank into an arc-shaped part is provided, the machining method being implemented using the tooling and cutting equipment described above for machining a circular annular blank into an arc-shaped part, comprising the steps of:

[0018] Step 1, Installation of the positioning plate: Place the plate on the worktable and fix the plate and the worktable together with screw fasteners;

[0019] Step 2, Installation of the reference mechanism: Place the reference part inside the cavity and fix the reference part to the disk body.

[0020] Step 3, positioning of the circular blank: Set the circular blank on the reference plate and make the surface to be machined abut against the side plate.

[0021] Step four, fixing the ring blank: Insert the fixing part onto the connecting rod, ensuring the limiting part and the upper end face of the ring blank abut against each other.

[0022] At the same time, the locking part is inserted into the connecting rod, and the locking part rotates along the external thread on the connecting rod until it abuts against the fixing part, thereby causing the fixing part to apply a force toward the circular blank.

[0023] Step 5, machining of the circular blank: Start the cutting equipment and move the cutting end of the cutting equipment close to the reference disk, and set the movement trajectory of the cutting end along the shape of the reference disk to achieve machining of the circular blank.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention includes a worktable for receiving a circular blank, a connecting mechanism mounted on the worktable and extending upwards, allowing passage through an annular cavity, and a fixing mechanism selectively fixed to the connecting mechanism. The fixing mechanism is configured to apply a downward force to the circular blank while avoiding the machining area of ​​the surface to be machined. In this way, the circular blank can be vertically fixed to the worktable, allowing the cutting end to cut the surface to be machined along a direction parallel to its axis. Specifically, in this configuration, the circular blank is subjected to a vertical force, thus preventing the cut part from contracting inwards due to radially inward forces during vertical cutting. This reduces machining steps, simplifies the machining process, and improves machining efficiency. 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 overall structure of a circular ring blank in the prior art;

[0028] Figure 2 This is a schematic diagram of the overall structure of an arc-shaped part in the prior art;

[0029] Figure 3 This is a schematic diagram of the overall structure of the tooling and cutting equipment used to process a circular blank into an arc-shaped part according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the overall structure of the tooling used to process a circular blank into an arc-shaped part according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the overall structure of the fixing mechanism according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the overall structure of the positioning mechanism according to an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the overall structure of the reference mechanism in an embodiment of the present invention.

[0034] In the above figures: tooling 100 for machining a circular blank into an arc-shaped part, circular blank 10, surface to be machined 101, annular cavity 102, cutting equipment 20, cutting end 201, worktable 1, connecting mechanism 2, connecting rod 21, external thread 211, locking part 22, fixing mechanism 3, fixing part 31, fixing hole 311, limiting part 32, positioning mechanism 4, disc 41, first countersunk hole 411, second connecting hole 412, side wall 42, cavity 43, reference mechanism 5, reference part 51, second countersunk hole 511, side plate 52. Detailed Implementation

[0035] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] To better understand the purpose, structure, and function of this invention, the following detailed description, in conjunction with the accompanying drawings, provides a tooling and method for machining a circular ring blank into an arc-shaped part.

[0037] For convenience, the direction extending along the circular blank will be referred to as "axial direction", "vertical direction" or similar terms, the direction perpendicular to the "axial direction" will be referred to as "radial direction", "horizontal direction" or similar terms, the direction of movement along the circular blank toward the worktable will be referred to as "downward" or similar terms, and the direction of movement along the worktable toward the circular blank will be referred to as "upward" or similar terms.

[0038] like Figure 1 , 2As shown in Figure 3, the annular blank 10 typically includes a surface 101 to be machined and an annular cavity 102 disposed within the surface 101. The surface 101 is typically machined using a cutting device 20 (machining center or similar). In this configuration, the cutting end 201 of the cutting device 20 can perform cutting on the annular blank 10 while moving along the surface 101, thereby obtaining an arc-shaped part. It should be noted that the structure of the annular blank 10 and the machining method of the annular blank 10 using the cutting device 20 are well known to those skilled in the art.

[0039] Figure 3 The schematic diagram illustrates the overall structure of a tooling according to the invention for machining a circular ring blank into an arc-shaped part. In such a way... Figure 3 In the illustrated embodiment, the tooling 100 for machining a circular blank into an arc-shaped part includes a worktable 1 for receiving the circular blank 10, a connecting mechanism 2 disposed on the worktable 1 and extending upward, and allowing passage through the annular cavity 102. The tooling 100 also includes a fixing mechanism 3 selectively fixed to the connecting mechanism 2.

[0040] In this embodiment, as Figure 4 As shown, the fixing mechanism 3 is configured to allow it to abut against the annular blank 10 and to apply a downward force to the annular blank 10. In this way, the annular blank 10 can be stably positioned on the worktable 1.

[0041] At the same time, such as Figure 4 As shown, the fixing mechanism 3 is also configured to allow the machining area of ​​the surface to be machined 101 to be avoided. Specifically, the area where the fixing mechanism 3 abuts against the annular blank 10 is the non-machined area. This avoids interference between the fixing mechanism 3 and the cutting end 201.

[0042] In this configuration, such as Figure 3 As shown, when the circular blank 10 needs to be processed, the circular blank 10 is first placed on the worktable 1, and the connecting mechanism 2 located on the worktable 1 passes through the annular cavity 102. At the same time, the fixing mechanism 3 is placed on the connecting mechanism 2, and the fixing mechanism 3 and the circular blank 10 abut against each other.

[0043] Furthermore, the fixing mechanism 3 and the connecting mechanism 2 are fixed together, thereby allowing the fixing mechanism 3 to stably apply a downward force to the annular blank 10. This ensures that the annular blank 10 is stably positioned on the worktable 1. It should be noted that the edge of the fixing mechanism 3 avoids the processing area of ​​the surface to be processed 101. This completes the arrangement of the device 100.

[0044] At this time, the cutting device 20 is started, and the cutting end 201 is continuously moved toward the annular blank 10, thereby cutting the surface 101 to be machined. Thus, the cutting operation of the annular blank 10 is realized.

[0045] In one embodiment, such as Figure 5 As shown, the fixing mechanism 3 includes a fixing part 31, which is configured to be fixed relative to the connecting mechanism 2 in a selective manner. A limiting part 32 extending radially outward is also provided on the fixing part 31 for abutting against the annular blank 10.

[0046] In this embodiment, as Figure 5 As shown, the limiting part 32 is located at the unprocessed position of the annular blank 10. In this way, the fixing mechanism 3 can both fix the annular blank 10 and avoid interference with the cutting end 201.

[0047] In one embodiment, such as Figure 4 As shown, the connecting mechanism 2 includes a connecting rod 21 that is relatively fixed on the worktable 1 and extends upward. The connecting rod 21 is configured to pass through the fixing part 31 and extend to the outside. Specifically, a fixing hole 311 is provided on the fixing part 31, and the fixing hole 311 is configured to allow the connecting rod 21 to be accommodated.

[0048] At the same time, such as Figure 4 As shown, the connecting mechanism 2 also includes a locking part 22. In this embodiment, the locking part 22 is configured to allow it to be fixed relative to the connecting rod 21 in a selectable manner, and to limit the fixing part 31 in the axial direction. In this way, the fixing mechanism 3 can stably abut against the annular blank 10, thereby making the annular blank 10 stably set on the worktable 1.

[0049] According to a preferred embodiment of the present invention, such as Figure 4 As shown, an external thread 211 is provided along the connecting rod 21. Simultaneously, the locking part 22 is configured as a nut that engages with the external thread 211. In this way, the locking part 22 can move along the connecting rod 21.

[0050] During this process, the locking part 22 can limit the fixing part 31, thereby making the fixing part 31 stably abut against the annular blank 10. This further stabilizes the annular blank 10 on the worktable 1. It should be noted that the external thread 211 extends from its free end to the annular cavity 102 on the connecting rod 21, so that the locking part 22 can abut against the annular blank 10 as it moves along the external thread 211.

[0051] According to a preferred embodiment of the present invention, such as Figure 4 As shown, at least two connecting mechanisms 2 are provided, each capable of being fixed to the fixing part 31. Specifically, at least two fixing holes 311 are provided on the fixing part 31, and each fixing hole 311 corresponds to a connecting rod 21 to accommodate the connecting rod 21. In this way, the two connecting rods 21 can limit the circumferential movement of the fixing part 31. Thus, the annular blank 10 can be stably placed on the worktable 1.

[0052] In this configuration, such as Figure 3 As shown, when the circular blank 10 needs to be processed, the circular blank 10 is first placed on the worktable 1, and the two connecting rods 21 located on the worktable 1 pass through the annular cavity 102. At the same time, the fixing part 31 is respectively inserted into the connecting rod 21 along the two fixing holes 311, and the limiting part 32 connected to the fixing part 31 and the circular blank 10 abut against each other.

[0053] At this time, locking parts 22 are respectively provided on the connecting rod 21, and a force is applied to the locking parts 22, so that the locking parts 22 move along the external thread on the connecting rod 21 until the locking parts 22 and the fixing parts 31 abut against each other. As a result, the limiting part 32 and the annular blank 10 abut against each other. Thus, the annular blank 10 is stably set on the worktable 1, thereby completing the arrangement of the device 100.

[0054] Then, the cutting device 20 is started, and the cutting end 201 is continuously moved toward the annular blank 10 to cut the surface 101 to be machined. Thus, the cutting operation of the annular blank 10 is realized.

[0055] In one embodiment, such as Figure 4 As shown, the tooling 100 also includes a positioning mechanism 4 for supporting the annular blank 10, which is configured to be selectively fixed relative to the worktable 1. In this configuration, when the annular blank 10 needs to be placed on the worktable 1, the annular blank 10 and the positioning mechanism 4 can be brought into contact. This allows for precise positioning of the annular blank 10, thereby improving processing efficiency.

[0056] In this embodiment, as Figure 6As shown, the positioning mechanism 4 includes a disc 41 mounted on the worktable 1 and capable of supporting the annular blank 10. A first countersunk hole 411 is provided on the disc 41, and a spiral fastener (not shown) is selectively provided within the first countersunk hole 411 to fix the positioning mechanism 4 and the worktable 1 together. This allows the disc 41 to be fixed relative to the worktable 1, thereby limiting the movement of the disc 41. It should be noted that a first connecting hole (not shown) is provided on the worktable 1 corresponding to the first countersunk hole 411 and capable of engaging with the spiral fastener.

[0057] At the same time, such as Figure 6 As shown, an upwardly extending sidewall 42 is also provided along the disk body 41, the sidewall 42 enclosing and forming a cavity 43 together with the disk body 41. The cavity 43 is configured to accommodate the annular blank 10. Thus, the annular blank 10 can be placed inside the cavity 43. In this way, the annular blank 10 can be further positioned.

[0058] According to a preferred embodiment of the present invention, such as Figure 4 As shown, a reference mechanism 5 is selectively disposed within the cavity 43. The reference mechanism 5 is configured to support the annular blank 10, and its end face mates with the end face of the machined annular blank 10. In this way, the reference mechanism 5 provides a reference for the machining of the annular blank 10. Specifically, by providing the reference mechanism 5, the areas of the annular blank 10 that need to be machined can be marked. This improves machining efficiency.

[0059] In one embodiment, such as Figure 7 As shown, the reference mechanism 5 includes a reference part 51, which is configured as a split structure and can be disposed within the cavity 43 when enclosed, and allows its radially outer side to abut against the sidewall 42.

[0060] Meanwhile, a second countersunk hole 511 is provided on the reference part 51, and a second connecting hole 412 corresponding to the second countersunk hole 511 is also provided on the disk body 41. Bolts (not shown in the figure) are selectively provided in the second countersunk hole 511 and the second connecting hole 412, and the bolts are configured to cooperate with the second countersunk hole 511 and the second connecting hole 412. With this arrangement, the reference part 51 and the disk body 41 can be fixed together.

[0061] At the same time, such as Figure 7As shown, an upwardly extending side plate 52 is also provided on the reference part 51. The side plate 52 is configured to allow it to abut against the radially outer side of the annular blank 10, thereby positioning the annular blank 10. It should be noted that the side plate 52 is positioned to avoid the machining area of ​​the surface to be machined 101, thereby avoiding interference between the side plate 52 and the cutting end 201.

[0062] Figure 3 The second embodiment of the present invention is shown. In this embodiment, a method for machining a circular annular blank into an arc-shaped part is provided. The machining method is implemented using a tooling 100 for machining a circular annular blank into an arc-shaped part and a cutting device 20.

[0063] In one embodiment, the processing method includes the following steps:

[0064] Step 1, Installation of positioning mechanism 4: Set the disc body 41 on the workbench 1, and make the first countersunk hole 411 on the disc body 41 and the first connecting hole (not shown in the figure) on the workbench 1 correspond to each other. At the same time, set the spiral fastener (not shown in the figure) in the first countersunk hole 411, and make the spiral fastener cooperate with the first countersunk hole 411 and the first connecting hole respectively, so as to fix the positioning mechanism 4 on the workbench 1.

[0065] Step 2, Installation of reference mechanism 5: The reference part 51 is placed in the cavity 43, so that the second countersunk hole 511 on the reference part 51 and the second connecting hole 412 on the disk body 41 correspond to each other. At the same time, a bolt is placed in the second countersunk hole 511, and the bolt is respectively engaged with the second countersunk hole 511 and the second connecting hole 412, thereby fixing the reference mechanism 5 on the positioning mechanism 4.

[0066] Step 3, positioning of the circular blank 10: The circular blank 10 is placed on the reference part 51, and the radial outer side of the circular blank 10 and the side plate 52 are abutted together.

[0067] Step 4, fixing the circular blank 10: pass the fixing part 31 through the fixing hole 311 into the connecting rod 21, and make the fixing part 31 move continuously on the connecting rod 21 until the limiting part 32 connected to the fixing part 31 and the circular blank 10 abut against each other.

[0068] At the same time, the locking part 22 is passed through the connecting rod 21, and the locking part 22 rotates along the external thread 211 on the connecting rod 21 until it abuts against the fixing part 31, thereby causing the fixing part 31 to apply force toward the circular blank 10.

[0069] Step 5, machining of the circular blank 10: Start the cutting device 20 and move the cutting end 201 of the cutting device 20 close to the reference disk 5, and set the movement trajectory of the cutting end 201 along the shape of the reference part 51 to achieve machining of the circular blank 10.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A tooling for machining a circular blank into an arc-shaped part, the circular blank (10) including a surface to be machined (101) and an annular cavity (102) disposed in the surface to be machined (101). Its features are, The tooling (100) includes a worktable (1) for receiving a circular blank (10), a connecting mechanism (2) disposed on the worktable (1) and extending upward, and allowing passage through the annular cavity (102), and a fixing mechanism (3) that is selectively fixed to the connecting mechanism (2). The fixing mechanism (3) is configured to apply a downward force to the annular blank (10) and allow the machining area of ​​the surface to be machined (101) to be avoided. The tooling (100) also includes a positioning mechanism (4) that is selectively fixed on the worktable (1) to support the circular blank (10) and to position the circular blank (10). The positioning mechanism (4) includes a disc (41) disposed on the worktable (1) and capable of supporting the annular blank (10). A first countersunk hole (41) is provided on the disc (41). A spiral fastener for fixing the positioning mechanism (4) and the worktable (1) together is selectively provided in the first countersunk hole (41). An upwardly extending sidewall (42) is also provided on the disc (41). The sidewall (42) together with the disc (41) forms a cavity (43) for accommodating the annular blank (10). A reference mechanism (5) is selectively fixed relative to the cavity (43). The reference mechanism (5) is configured to support the annular blank (10) and allow the end face of the reference mechanism (5) to mate with the end face of the finished annular blank (10), so that the reference mechanism (5) can provide a reference for the machining of the annular blank (10). The reference mechanism (5) includes a reference part (51), which is configured as a split structure and can be placed in the cavity (43) when enclosed, and allows its radial outer side to abut against the side wall (42). On the reference part (51), there is also a side plate (52) that extends upward and avoids the processing area of ​​the surface to be processed (101). The side plate (52) is configured to allow it to abut against the radial outer side of the annular blank (10) to position the annular blank (10).

2. The tooling for machining a circular ring blank into an arc-shaped part according to claim 1, characterized in that, The fixing mechanism (3) includes a fixing part (31) that is fixed together with the connecting mechanism (2) in a selected manner, and a limiting part (32) that is provided on the fixing part (31) and extends radially outward to abut against the annular blank (10).

3. The tooling for machining a circular ring blank into an arc-shaped part according to claim 2, characterized in that, The connecting mechanism (2) includes a connecting rod (21) that is fixed relative to the worktable (1) and extends upward to pass through the fixing part (31), and a locking part (22) that allows the connecting rod (21) to be fixed relative to it in a selectable manner and can limit the fixing part (31) in the axial direction.

4. The tooling for machining a circular ring blank into an arc-shaped part according to claim 3, characterized in that, An external thread (211) is provided along the connecting rod (21) and the locking part (22) is provided as a nut that cooperates with the external thread (211) to limit the fixed part (31) during movement along the external thread (211).

5. The tooling for machining a circular ring blank into an arc-shaped part according to claim 4, characterized in that, The connecting mechanism (2) is provided in at least two parts and is fixed to the fixing part (31) respectively, so as to limit the movement of the fixing part (31) along the circumferential direction.

6. A method for machining a circular ring blank into an arc-shaped part, characterized in that, The processing method is implemented using the tooling and cutting equipment (20) for machining a circular blank into an arc-shaped part according to any one of claims 1 to 5, and includes the following steps: Step 1, Installation of positioning plate (4): Set the plate body (41) on the workbench (1) and fix the plate body (41) and the workbench (1) together with screw fasteners; Step 2, installation of the reference mechanism (5): The reference part (51) is placed in the cavity (43), and the reference part (51) is fixed together with the disk body (41); Step 3, positioning of the circular blank (10): Set the circular blank (10) on the reference plate (5) and make the surface to be processed (101) abut against the side plate (51); Step four, fixing the circular blank (10): pass the fixing part (31) through the connecting rod (21), and make the limiting part (32) and the upper end face of the circular blank (10) abut against each other. At the same time, the locking part (22) is inserted into the connecting rod (21), and the locking part (22) rotates along the external thread (211) on the connecting rod (21) until it abuts against the fixing part (31), thereby causing the fixing part (31) to apply force toward the annular blank (10); Step 5, machining of the circular blank (10): Start the cutting device (20) and move the cutting end (201) of the cutting device (20) close to the reference disk (5), and set the movement trajectory of the cutting end (201) along the shape of the reference disk (5) to achieve machining of the circular blank (10).

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