Non-standard composite grooving cutter integrating rough machining and finish machining
By designing a non-standard composite grooving tool that includes an arc-shaped guide and a pressure block, the problems of complex tool changing and high defect rate in precision turning of turbine housing machining were solved, and rapid switching and high-precision machining were achieved.
Patent Information
- Application Number
- CN202520060957.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-10
AI Technical Summary
In the existing technology, the turbine housing machining process requires changing tools or using a single tool, which increases the complexity of operation and results in a high dimensional defect rate during the finishing stage.
Design a non-standard composite grooving tool that integrates roughing and finishing, comprising an arc-shaped guide and a pressure block arranged side by side, on which roughing and finishing cutting inserts are respectively mounted and fixed by locking screws to achieve rapid switching and ensure machining accuracy.
It enables rapid switching between roughing and finishing machining, reduces operational complexity, and improves machining accuracy and tool life.
Smart Images
Figure CN223684462U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to machining technical field, specifically, relate to a rough and finish machining integrated non standard composite slot cutter. BACKGROUND
[0002] Turbine shell is the key part in turbocharger, is located in engine intake and exhaust system, connects exhaust pipe and intermediate shell, simultaneously as alloy impeller's protective cover. The main function of turbine shell is to guide the exhaust gas of engine into the turbine in turbine chamber, utilizes the inertial force of exhaust gas to push turbine rotation, and then drives the coaxial impeller rotation, and pressurizes air to make it turbocharged into cylinder. In this way, the pressure and density of air can be improved, thereby more fuel is combusted, and the output power of engine is increased.
[0003] In the turbine shell machining process, the hole edge needs to be slotted, and the slotting process needs to be roughed first and then finished. In the conventional machining mode, either the tool needs to be changed, or a tool is directly used to complete roughing and finishing. The former increases the complexity of operation, and the latter causes serious tool wear in the roughing stage, which easily leads to an increase in the size defect rate in the finishing stage. SUMMARY
[0004] The utility model discloses a kind of rough and finish machining integrated non standard composite slot cutter, its structure design is scientific and reasonable, and roughing blade and finishing blade are arranged side by side, it is convenient to switch between roughing and finishing quickly, and guarantee machining precision.
[0005] The embodiment of the utility model is implemented as follows:
[0006] A kind of rough and finish machining integrated non standard composite slot cutter, it includes the knife bar, the bottom end of the knife bar is provided with a pair of arc-shaped guides side by side, the knife bar includes opposite front wall, rear wall, and the inner side wall and outer side wall connected with front wall and rear wall, a pair of arc-shaped guides are all extended from front wall to rear wall, and bend towards inner side wall;Front wall is provided with pressing block, and pressing block is connected with the knife bar by locking screw;The pressing block has downwardly extending pressing piece, and the insertion slot is formed between the pressing piece and the arc-shaped guide, and the corresponding insertion slot of a pair of arc-shaped guides is respectively installed with finishing blade and roughing blade.
[0007] Further, in other preferable embodiments of the utility model, a pair of arc-shaped guides are respectively first arc-shaped guide and second arc-shaped guide, and the first arc-shaped guide is arranged closer to the inner side wall relative to the second arc-shaped guide;The height of the first arc-shaped guide is greater than that of the second arc-shaped guide.
[0008] Further, in other preferable embodiments of the utility model, the bending radius of the first arc-shaped guide and the second arc-shaped guide is same.
[0009] Further, in other preferable embodiments of the utility model, the corresponding slot of the first arc-shaped guide piece is provided with a rough turning blade; the corresponding slot of the second arc-shaped guide piece is provided with a fine turning blade.
[0010] Further, in other preferable embodiments of the utility model, the arc-shaped guide piece gradually thins along the direction close to the back wall.
[0011] Further, in other preferable embodiments of the utility model, the top of the pressing block is integrally formed with the front wall of the tool bar.
[0012] Further, in other preferable embodiments of the utility model, the locking screw penetrates the middle part of the pressing block, and is connected with the tool bar after penetrating the slot.
[0013] Further, in other preferable embodiments of the utility model, the thickness of the pressing piece is equivalent to the thickness of the front end of the arc-shaped guide piece.
[0014] Further, in other preferable embodiments of the utility model, the lower edge of the pressing piece is higher than the arc-shaped guide piece.
[0015] Further, in other preferable embodiments of the utility model, the front end of the pressing piece is provided with an inclined surface, and the inclined surface is close to the arc-shaped guide piece along the downward direction.
[0016] The embodiment of the utility model has the advantages of:
[0017] The embodiment of the utility model provides a non-standard composite slot tool for rough and fine machining, which comprises a tool bar, a pair of arc-shaped guide pieces arranged side by side at the bottom end of the tool bar, the tool bar comprises opposite front and back walls, and inner and outer side walls connecting the front and back walls, the pair of arc-shaped guide pieces extend from the front wall to the back wall and bend towards the inner side wall; the front wall is provided with a pressing block, and the pressing block is connected with the tool bar through a locking screw; the pressing block has a pressing piece extending downward, and the pressing piece and the arc-shaped guide piece form a slot; the corresponding slots of the pair of arc-shaped guide pieces are respectively provided with fine and rough turning blades. The rough and fine turning blades are arranged side by side, which facilitates quick switching between rough and fine turning and ensures machining accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 It is a partial schematic view of the non-standard composite slot tool provided by the embodiment of the utility model;
[0020] Figure 2 A front view of the non-standard composite slot cutter provided by the embodiment of the present application is shown in the figure.
[0021] Figure 3 A schematic diagram of the non-standard composite slot cutter in a rough turning state provided by the embodiment of the present application is shown in the figure.
[0022] Figure 4 A schematic diagram of the non-standard composite slot cutter in a fine turning state provided by the embodiment of the present application is shown in the figure.
[0023] Icon: 100-non-standard composite slot cutter; 110-cutter bar; 111-front wall; 112-inner side wall; 113-outer side wall; 120-arc-shaped guide; 121-first arc-shaped guide; 122-second arc-shaped guide; 130-pressing block 130; 131-locking screw; 132-pressing piece; 1321-inclined surface; 133-insertion slot; 134-rough turning blade; 135-fine turning blade. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0025] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0026] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.
[0027] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements or the interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0028] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. Embodiment
[0029] The embodiment provides a non-standard composite groove cutter 100 for rough and fine machining, which is used for machining a turbine shell. In the machining process, an annular groove needs to be machined at the edge of a hole, the inner diameter of the groove is 109mm, the outer diameter of the groove is 116.20mm, and the depth is 2.79mm.
[0030] Referring to Figure 1 and Figure 2 As shown in the figure, the non-standard composite groove cutter 100 comprises a cutter bar 110, and a pair of arc-shaped guide pieces 120 are arranged side by side at the bottom end of the cutter bar 110. The cutter bar 110 comprises opposite front and rear walls 111, 112 and inner and outer side walls 113 connecting the front and rear walls 111, 112. The pair of arc-shaped guide pieces 120 extend from the front wall 111 to the rear wall and bend towards the inner side wall 112. The bending radius of the arc-shaped guide piece 120 is consistent with the radius of the annular groove, which can guide the direction of the blade during machining.
[0031] The front wall 111 of the tool bar 110 is provided with a pressing block 130, which is connected with the tool bar 110 through a locking screw 131; the pressing block 130 has a downwardly extending pressing piece 132, which forms a slot 133 with the arc-shaped guide 120; a corresponding slot 133 of the pair of arc-shaped guides 120 respectively installs a finish turning blade 135 and a rough turning blade 134. In use, the finish turning blade 135 or the rough turning blade 134 is inserted into the slot 133, and then the locking screw 131 is tightened to fix the finish turning blade 135 or the rough turning blade 134.
[0032] Further, the pair of arc-shaped guides 120 are respectively a first arc-shaped guide 121 and a second arc-shaped guide 122, the first arc-shaped guide 121 is arranged closer to the inner side wall 112 relative to the second arc-shaped guide 122; the height of the first arc-shaped guide 121 is greater than that of the second arc-shaped guide 122. The first arc-shaped guide 121 and the second arc-shaped guide 122 have the same bending radius. The corresponding slot 133 of the first arc-shaped guide 121 installs the rough turning blade 134; the corresponding slot 133 of the second arc-shaped guide 122 installs the finish turning blade 135. As shown in Figure 3 and Figure 4 When rough turning is performed, the outer finish turning blade 135 is higher than the machining surface and does not interfere with rough turning; when switching to finish turning after rough turning is completed, the rough turning blade 134 extends into the hole and does not interfere with the finish turning process. Moreover, the rough turning blade 134 is inside and the finish turning blade 135 is outside, which is consistent with the outward inward feed sequence, and the operation is more smooth.
[0033] The arc-shaped guide 120 gradually thins along the direction close to the rear wall. Such a design is beneficial to the discharge of machining debris from the rear of the arc-shaped guide 120 and is not easy to cause blockage.
[0034] As shown in Figure 1 and Figure 2 The top of the pressing block 130 is integrally formed with the front wall 111 of the tool bar 110. The locking screw 131 penetrates the middle part of the pressing block 130, passes through the slot 133, and is connected with the tool bar 110. The integrally formed design makes the pressing block 130 not easy to lose and the angular position is relatively fixed, so the clamping effect is better.
[0035] Further, the lower edge of the pressing piece 132 is higher than the arc-shaped guide 120, so that the rough turning blade 134 or the finish turning blade 135 in the slot 133 can be exposed. The thickness of the pressing piece 132 is comparable to the thickness of the front end of the arc-shaped guide 120, which will not cause obstruction in front of the rough turning blade 134 or the finish turning blade 135.
[0036] The front end of the pressing piece 132 is provided with an inclined surface 1321, which is close to the arc-shaped guide 120 along the downward direction. The inclined surface 1321 is designed to be wider at the upper end of the pressing piece 132 connected with the pressing block 130, so as to increase the connection strength, and narrower at the lower end of the pressing piece 132, which does not affect the work of the rough turning blade 134 or the fine turning blade 135, and the machining is more smooth.
[0037] In summary, the utility model embodiment provides a non-standard composite groove cutter 100 of rough and fine machining integration, which comprises a cutter bar 110, a pair of arc-shaped guides 120 arranged side by side at the bottom end of the cutter bar 110, the cutter bar 110 comprises opposite front and back walls 111, 112 and outer side walls 113 connected with the front and back walls 111, 112, the pair of arc-shaped guides 120 extend from the front wall 111 to the back wall and bend towards the inner side wall 112, the front wall 111 is provided with a pressing block 130, the pressing block 130 is connected with the cutter bar 110 through locking screws 131, the pressing block 130 has a pressing piece 132 extending downward, the pressing piece 132 and the arc-shaped guide 120 form a slot 133, and the corresponding slots 133 of the pair of arc-shaped guides 120 are respectively provided with a fine turning blade 135 and a rough turning blade 134. The rough turning blade 134 and the fine turning blade 135 are arranged side by side, so that the rough and fine turning can be quickly switched, and the machining precision is ensured.
[0038] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A non-standard compound slotting cutter of roughing and finishing integration, characterized in that, The cutter bar is provided with a pair of arc-shaped guides arranged side by side at the bottom end of the cutter bar, and the cutter bar comprises opposite front and back walls, and inner and outer side walls connecting the front and back walls, and the pair of arc-shaped guides each extends from the front wall to the back wall and bends towards the inner side wall; the front wall is provided with a pressing block connected with the cutter bar by locking screws; the pressing block has a pressing piece extending downward, and the pressing piece and the arc-shaped guides form a slot therebetween, and a finishing cutter piece and a roughing cutter piece are respectively arranged in the corresponding slots of the pair of arc-shaped guides.
2. The non-indexable slotting endmill according to claim 1, wherein, The pair of arc-shaped guides are respectively a first arc-shaped guide and a second arc-shaped guide, and the first arc-shaped guide is arranged closer to the inner side wall relative to the second arc-shaped guide; the height of the first arc-shaped guide is greater than that of the second arc-shaped guide.
3. The non-indexable slotting tool according to claim 2, characterized in that The first arc-shaped guide and the second arc-shaped guide have the same bending radius.
4. The non-indexable slotting tool according to claim 3, characterized in that The first arc-shaped guide is provided with a roughing cutter piece in the corresponding slot; and the second arc-shaped guide is provided with a finishing cutter piece in the corresponding slot.
5. The non-indexable slotting cutter according to claim 4, wherein The arc-shaped guides gradually thin along the direction close to the back wall.
6. The non-indexable slotting endmill according to claim 5, wherein, The top of the pressing block is integrally formed with the front wall of the cutter bar.
7. The non-indexable slotting endmill according to claim 6, wherein, The locking screws pass through the middle part of the pressing block and are connected with the cutter bar after passing through the slots.
8. The non-indexable slotting endmill according to claim 7, wherein, The thickness of the pressing piece is equivalent to the thickness of the front end of the arc-shaped guide.
9. The non-indexable slotting end mill according to claim 8, wherein, The lower edge of the pressing piece is higher than the arc-shaped guide.
10. The non-marking composite slotting tool according to claim 9, characterized in that The front end of the pressing piece is provided with an inclined surface close to the arc-shaped guide along the downward direction.