A machining tool for removing blade end lock plate excess

Abstract

The application provides a machining tool for removing the excess of a blade end locking plate, comprising: a crossbeam connected with a main shaft of a machining device; a locking pull pin, one end of which is connected with the crossbeam; a six-point positioning chuck assembly, one end of which is detachably connected with the other end of the locking pull pin, and the other end of the six-point positioning chuck assembly is connected with a tool electrode. The traditional tool setting mode of electrochemical machining is converted to the center of the main shaft of the machining device, the reference probe can be directly placed on the main shaft, the tool setting and conversion between the reference probe and the part reference can determine the spatial point position of the main shaft in the theoretical position, and the subsequent overall clamping of the machining tool for removing the excess of the blade end locking plate on the main shaft realizes the tool setting process of all positions, so that the machining preparation period can be effectively shortened, the machining precision of the part is improved, and the machining efficiency of the part is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tooling, in particular to a machining tooling for removing excess of a blade end locking plate. BACKGROUND

[0002] Electrical discharge machining is a very common machining method for machining difficult-to-cut material parts, and is widely used in aerospace, aviation and other fields. For blade parts with large casting tolerances, it is difficult to ensure the dimensional accuracy of the parts due to large tool reference tolerances. Most of them use visual and real-time detection to adjust the machining, and the size is unstable during the machining process, which is prone to cause quality problems such as part size out-of-tolerance. Repeated adjustment of the machining position and size will seriously reduce the machining efficiency, and at the same time, it will have an unpredictable impact on the physical and chemical state of the electrical machining surface of the part, and there is a great quality risk. SUMMARY

[0003] Therefore, the embodiments of the present application provide a machining tooling for removing excess of a blade end locking plate to improve the machining efficiency of the part.

[0004] The embodiments of the present application provide the following technical solutions: a machining tooling for removing excess of a blade end locking plate, comprising: a cross beam connected with a main shaft of a machining device; a locking pull nail, one end of which is connected with the cross beam; a six-point positioning chuck assembly, one end of which is detachably connected with the other end of the locking pull nail, and the other end of the six-point positioning chuck assembly is connected with a tool electrode.

[0005] Further, the six-point positioning chuck assembly comprises: a first clamping block, one end of which is detachably connected with the other end of the locking pull nail, and the other end of the first clamping block is provided with at least four positioning grooves arranged in the circumferential direction; a directional auxiliary gasket, which is provided with a plurality of positioning protrusions matched with the positioning grooves, and the two ends of each positioning protrusion are arranged on the two sides of the directional auxiliary gasket; and a second clamping block, which is located on the side of the directional auxiliary gasket away from the first clamping block and is connected with the tool electrode, one end of the second clamping block is provided with a plurality of positioning matching holes, the plurality of positioning matching holes are matched with the plurality of positioning protrusions one by one, and the other end of the locking pull nail passes through the first clamping block and the directional auxiliary gasket in sequence and is connected with the second clamping block.

[0006] Further, the second clamping block has a rectangular structure, the top end of the rectangular structure is one end of the second clamping block, and a plurality of laterally locking holes are arranged at intervals on the first side wall end face of the second clamping block, and each laterally locking hole is correspondingly provided with a laterally locking screw for matching and positioning with the locking pull nail.

[0007] Further, the other end of the second clamping block is connected with the tool electrode through a clamping connection.

[0008] Further, the other end of the second clamping block is provided with a first clamping part, and the end of the tool electrode is provided with a second clamping part matched with the first clamping part.

[0009] Further, the second side wall end face of the second clamping block is provided with an auxiliary positioning baffle, and the end of the tool electrode is provided with a positioning groove, and when the second clamping block is connected with the tool electrode, the auxiliary positioning baffle can be positioned and matched with the positioning groove.

[0010] Further, one end of the first clamping block and the other end of the locking puller are detachably connected through a quick-change locking mechanism.

[0011] Further, each locking puller and six-point positioning chuck assembly forms a clamp unit, a plurality of spaced clamp units are arranged along the extension direction of the cross beam, the plurality of spaced clamp units are located on one side of the cross beam, and each clamp unit can be connected with the corresponding tool electrode.

[0012] Further, the adjacent two clamp units are arranged in a staggered manner perpendicular to the cross beam.

[0013] Further, a plurality of fixed supports are further arranged on the cross beam, the plurality of fixed supports are arranged in a spaced manner along the extension direction of the cross beam, and each fixed support is connected with a clamp unit, and the adjacent two fixed supports are arranged with a clamp unit directly connected with the cross beam.

[0014] Compared with the prior art, the above-mentioned at least one technical scheme adopted by the embodiment of the present application can achieve the beneficial effects at least including: converting the traditional tool setting mode of electrical machining to the spindle center of the machining device, directly placing the reference probe on the spindle, and determining the spatial point position of the spindle in the theoretical position through the tool setting and conversion of the reference probe and the part reference. Subsequently, the machining tool for removing the excess amount of the blade end plate is clamped on the spindle, which realizes the tool setting process of all positions. Therefore, the embodiment of the present application can effectively shorten the machining preparation period, improve the part machining precision, and the precision is less affected compared with the traditional tool setting mode of directly touching the part with the electrode reference surface. Therefore, the present application can achieve the purpose of improving the part machining efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

[0016] Figure 1 is the explosion schematic diagram of the embodiment of the present application;

[0017] Figure 2 1 is a schematic diagram of the assembly structure of a six-point positioning chuck assembly according to an embodiment of the present invention;

[0018] Figure 3 1 is a schematic diagram of the assembly of the crossbeam and the fixed support in an embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the overall assembly structure in an embodiment of the present invention.

[0020] Reference numerals in the figure: 10, crossbeam; 20, fixed support; 30, locking rivet; 41, first clamping block; 411, quick-change locking mechanism; 42, directional auxiliary gasket; 421, positioning protrusion; 43, second clamping block; 431, positioning matching hole; 432, lateral locking hole; 433, auxiliary positioning baffle; 50, tool electrode; 60, connecting assembly. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] like Figures 1 to 4 As shown, an embodiment of the present invention provides a machining tool for removing excess lock plate from a blade end, comprising: a crossbeam 10 connected to the spindle of a machining device, a locking rivet 30, and a six-point positioning chuck assembly. One end of the locking rivet 30 is connected to the crossbeam 10; one end of the six-point positioning chuck assembly is detachably connected to the other end of the locking rivet 30; and the other end of the six-point positioning chuck assembly is connected to the tool electrode 50.

[0024] By converting the traditional tool setting method of electromachining to the spindle center of the machining device, the reference probe can be directly placed on the spindle. Through the tool setting and conversion of the reference probe and the part reference, the spatial point position of the spindle at the theoretical position can be determined. Subsequently, the overall processing tooling used to remove the lock plate margin at the blade end is clamped to the spindle, thus realizing the tool setting process at all positions. Therefore, the embodiment of the present invention can effectively shorten the machining preparation cycle and improve the part machining accuracy. Compared with the traditional tool setting method of directly touching the part with the electrode reference surface, the accuracy is less affected, so the present invention can achieve the purpose of improving the part machining efficiency.

[0025] Specifically, the six-point positioning chuck assembly comprises a first clamping block 41, a directional auxiliary gasket 42 and a second clamping block 43. One end of the first clamping block 41 is detachably connected with the other end of the locking puller 30, and the other end of the first clamping block 41 is provided with at least four positioning grooves arranged in the circumferential direction; the directional auxiliary gasket 42 is provided with a plurality of positioning protrusions 421 matched with the positioning grooves, and both ends of each positioning protrusion 421 are arranged on both sides of the directional auxiliary gasket 42; the second clamping block 43 is arranged on the side of the directional auxiliary gasket 42 away from the first clamping block 41 and is connected with the tool electrode 50, and one end of the second clamping block 43 is provided with a plurality of positioning matching holes 431 corresponding to the plurality of positioning protrusions 421, and the other end of the locking puller 30 penetrates the first clamping block 41 and the directional auxiliary gasket 42 in sequence and is connected with the second clamping block 43.

[0026] In the embodiment, the first clamping block 41 is provided with an axial through hole for the locking puller 30 to pass through and be connected with the other end of the locking puller 30 through other components.

[0027] The directional auxiliary gasket 42 has a thin plate structure, is provided with a through hole for the locking puller 30 to pass through at the center position, and is provided with four positioning protrusions 421 around the through hole. The positioning protrusions 421 have a large-diameter positioning end and a small-diameter positioning end. The large-diameter positioning end is located on the side of the directional auxiliary gasket 42 facing the first clamping block 41 and is used for corresponding matching with the four positioning grooves. The small-diameter positioning end is located on the side of the directional auxiliary gasket 42 away from the first clamping block 41 and is used for positioning matching with the second clamping block 43.

[0028] The second clamping block 43 is provided with a plurality of positioning matching holes 431 at one end. The hole diameter of the positioning matching holes 431 is smaller than the size of the positioning grooves, so as to save the space of the second clamping block 43.

[0029] Further, the second clamping block 43 has a rectangular structure, the top end of the rectangular structure is one end of the second clamping block 43, and the first side wall end face of the second clamping block 43 is provided with a plurality of laterally arranged lateral locking holes 432, and each lateral locking hole 432 is correspondingly provided with a lateral locking screw for matching and positioning with the locking puller 30.

[0030] By arranging the lateral locking holes 432, the lateral locking screws can pass through the lateral locking holes 432 and match and position with the locking puller 30, so as to limit the rotation of the second clamping block 43 and achieve the purpose of positioning the second clamping block 43.

[0031] Furthermore, the second side wall end face of the second clamping block 43 is provided with an auxiliary positioning baffle 433, and the end of the tool electrode 50 is provided with a positioning groove. When the second clamping block 43 is connected to the tool electrode 50, the auxiliary positioning baffle 433 can be positioned and matched with the positioning groove.

[0032] In the present embodiment, when in the assembly state, the auxiliary positioning baffle 433 can engage with the positioning groove to locate the installation position of the tool electrode 50, so as to ensure that the tool electrode 50 is installed in the same position each time, which is convenient for subsequent processing operations.

[0033] The other end of the second clamping block 43 is engaged with the tool electrode 50. Specifically, a first engaging portion is provided at the other end of the second clamping block 43, and a second engaging portion is provided at the end of the tool electrode 50 to mate with the first engaging portion. The first engaging portion may be a protrusion, and the second engaging portion may be a corresponding recess. Alternatively, the first and second engaging portions may be selected based on different needs. Any structure that can connect the tool electrode 50 to the second clamping block 43 is intended to be protected by this application.

[0034] The above-mentioned six-point positioning chuck assembly can always fix the tool electrode 50 at the same determined position of the six-point positioning chuck assembly through the principle of six-point positioning, thereby well ensuring part quality and processing efficiency under the premise of appropriate parameters.

[0035] Preferably, one end of the first clamping block 41 and the other end of the locking rivet 30 are detachably connected via a quick-change locking mechanism 411. In this embodiment of the present invention, the first clamping block 41 is provided with a radial groove that communicates with the axial through-hole. The locking rivet 30 is correspondingly provided with a circumferential mounting groove. In the installed position, the mounting groove corresponds to and communicates with the radial groove. A corresponding clip is inserted through the radial groove to secure the first clamping block 41 to the locking rivet 30. When disassembly is required, simply pull out the clip for quick disassembly.

[0036] Of course, the quick-change locking mechanism 411 may also be other structures, such as a conventional pneumatic locking mechanism, that is, a pneumatic device controls a small ball to achieve locking and unlocking operations between the first clamping block 41 and the locking stud 30 .

[0037] like Figure 3 and Figure 4 As shown, each locking rivet 30 and the six-point positioning chuck assembly form a fixture unit, and a plurality of spaced-apart fixture units are provided along the extension direction of the beam 10. The plurality of spaced-apart fixture units are all located on one side of the beam 10, and each fixture unit can be connected to the corresponding tool electrode 50.

[0038] The embodiment of the present application sets multiple clamp units on the beam 10, which can clamp more electrodes in the same clamping and machining range, so that the single machining feed can simultaneously machine multiple parts.

[0039] Due to the installation position limitation, in order to avoid mutual interference, the embodiment of the present application sets the adjacent two clamp units in the direction perpendicular to the beam 10, which can avoid the interference that may occur during the feed process, and improve the original machining efficiency by more than eight times.

[0040] Specifically, the beam 10 is also provided with multiple fixed supports 20, the multiple fixed supports 20 are arranged at intervals along the extension direction of the beam, and each fixed support 20 is connected with a clamp unit, and each adjacent two fixed supports 20 are provided with a clamp unit directly connected with the beam 10. By setting fixed supports 20 with different lengths, the purpose of staggering can also be achieved, that is, the embodiment of the present application is not limited to the embodiment shown in the figure, and any scheme that can achieve staggering should be within the protection scope of the present application.

[0041] It should be noted that the embodiment of the present application is also provided with a connecting assembly 60 for connecting with the main shaft of the machining device, one side of the connecting assembly 60 is fixedly connected with the beam 10, and the other side of the connecting assembly 60 is fixedly provided with a locking pull nail 30, which can be directly connected with the main shaft of the machining device for quick disassembly and assembly. The specific quick disassembly and assembly assembly is described above in the quick-change locking mechanism 411, which will not be described here.

[0042] The beneficial effects of the embodiment of the present application are as follows:

[0043] The reference conversion realizes conversion, and under the premise of ensuring sufficient repeat positioning accuracy, the traditional tool setting mode of electrochemical machining can be converted to the center of the main shaft, and the reference probe can be directly placed on the main shaft. Through the tool setting and conversion of the reference probe and the part reference, the spatial point position of the main shaft in the theoretical position can be determined, and the subsequent electrode tooling is clamped on the main shaft, that is, the tool setting process of all positions is realized. The machining preparation period can be effectively shortened, and the part machining precision can be effectively improved. Compared with the traditional tool setting mode of directly touching the part with the electrode reference surface, the precision is less affected.

[0044] Modular design, stable quality. Each electrode and chuck is a single consistent structure, including the same size and technical condition requirements, so that the efficient replacement of each position electrode can be realized, and only the electrode and chuck need to be installed in place according to the requirements, and the interchangeability can be easily guaranteed.

[0045] The quick change is realized because the overall design scheme adopts the modular design idea, and the repeated positioning accuracy of the overall tool is used, the adjusting position is added on the side of the chuck under the premise of positioning guarantee, the electrode and the whole beam can be quickly separated under the action of the matched tool, the four small steel balls are driven by the pneumatic, the clamping position is fastened, the parallelism of the electrode reference relative to the part tool reference can be well guaranteed. Meanwhile, the part that needs to be replaced after the electrode wears is very little, the rest of the tool can be used normally, and the tool cost is greatly saved.

[0046] The above is only a specific embodiment of the present application, which cannot limit the scope of the application. Therefore, the replacement of equivalent components or equivalent changes and modifications made within the scope of the present application should still fall within the scope of the present patent. In addition, the technical features in the present application can be freely combined with each other, and the technical features can be freely combined with each other.

Claims

1. A machining tool for removing blade end lock plate excess, characterized by, The utility model relates to a six-point positioning chuck assembly and a tool electrode connecting device, and belongs to the field of machining equipment. The utility model discloses a six-point positioning chuck assembly and a tool electrode connecting device, which are characterized by comprising the following: A crossbeam (10) is connected with a main shaft of a machining device; A locking pull nail (30) is connected with one end of the crossbeam (10); The other end of the locking pull nail (30) is detachably connected with one end of a six-point positioning chuck assembly, and the other end of the six-point positioning chuck assembly is connected with a tool electrode (50); The six-point positioning chuck assembly specifically comprises: A first clamping block (41) is detachably connected with the other end of the locking pull nail (30), and the other end of the first clamping block (41) is provided with at least four positioning grooves arranged in a circumferential direction; the one end of the first clamping block (41) is detachably connected with the other end of the locking pull nail (30) through a quick-change locking mechanism (411); A directional auxiliary gasket (42) is provided with a plurality of positioning protrusions (421) matched with the positioning grooves, and the two ends of each positioning protrusion (421) are arranged on the two sides of the directional auxiliary gasket (42); 2. The machining tool for removing the excess of the blade end lock plate according to claim 1, wherein A second clamping block (43) is arranged on the side, away from the first clamping block (41), of the directional auxiliary gasket (42) and is connected with the tool electrode (50); one end of the second clamping block (43) is provided with a plurality of positioning holes (431) matched with the plurality of positioning protrusions (421) one by one; and the other end of the locking pull nail (30) penetrates the first clamping block (41) and the directional auxiliary gasket (42) in sequence and is connected with the second clamping block (43).

3. The machining tool for removing the excess of the blade end lock plate according to claim 1, wherein The second clamping block (43) has a rectangular structure, the top end of the rectangular structure is one end of the second clamping block (43), the first side wall end face of the second clamping block (43) is provided with a plurality of laterally arranged locking holes (432), and each locking hole (432) is provided with a laterally arranged locking screw matched with the locking pull nail (30).

4. The machining tool for removing the excess of the blade end lock plate according to claim 2, wherein The other end of the second clamping block (43) is clamped and connected with the tool electrode (50).

5. The machining tool for removing the excess of the blade end lock plate according to claim 3, wherein The other end of the second clamping block (43) is provided with a first clamping part, and the end of the tool electrode (50) is provided with a second clamping part matched with the first clamping part.

6. The machining tool for removing blade end lock plate excess according to any one of claims 1 to 5, characterized in that, The second side wall end face of the second clamping block (43) is provided with an auxiliary positioning baffle (433), and the end of the tool electrode (50) is provided with a positioning groove; when the second clamping block (43) is connected with the tool electrode (50), the auxiliary positioning baffle (433) can be positioned and matched with the positioning groove.

7. The machining tool for removing the excess of the blade end lock plate according to claim 6, wherein Each locking pull nail (30) and the six-point positioning chuck assembly form a clamping unit, a plurality of clamping units are arranged at intervals along the extension direction of the crossbeam (10), the plurality of clamping units are arranged on one side of the crossbeam (10), and each clamping unit can be connected with a corresponding tool electrode (50).

8. The machining tool for removing the excess of the blade end lock plate according to claim 7, wherein The two adjacent clamping units are arranged in a staggered manner in a direction perpendicular to the crossbeam (10). The crossbeam (10) is further provided with a plurality of fixed supports (20), the plurality of fixed supports (20) are arranged at intervals along the extension direction of the crossbeam, and each fixed support (20) is connected with a clamping unit; a clamping unit directly connected with the crossbeam (10) is arranged between the two adjacent fixed supports (20).

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