Machining tool and method for positioning hole in end face of thin-wall part

Abstract

The invention discloses a machining tool and method for a positioning hole in the end face of a thin-wall part, and belongs to the field of machining. The machining tool comprises a machining table and a positioning assembly. The machining table is provided with a plurality of sliding grooves. The positioning assembly comprises a positioning seat, a plurality of bottom pressing modules and a plurality of top pressing modules, the positioning seat is placed on the machining table, an outer flange is arranged at the bottom of the positioning seat, each bottom pressing module comprises a first sliding block, a first supporting column and a first pressing plate, the first sliding blocks are slidably inserted into the sliding grooves, the first supporting columns are placed on the machining table, and the first pressing plates are arranged on the first supporting columns. Each top pressing module comprises a second sliding block, a second supporting column, a second pressing plate and a connecting rod, the second sliding blocks are slidably inserted into the sliding grooves, and the second supporting columns are placed on the machining table. According to the machining tool for the positioning hole in the end face of the thin-wall part, the thin-wall part is not prone to deformation in the actual machining process, and the dimensional tolerance and the form and location tolerance of the thin-wall part are guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of machining, and in particular relates to a machining tool and method for a positioning hole on the end face of a thin-walled part. Background Art

[0002] Thin-walled parts are large in size, have large machining allowances, and have low relative rigidity. Under the influence of machining factors, they are prone to machining deformation and are difficult to control machining accuracy. Machining deformation has become an important constraint for thin parts.

[0003] At present, a certain key part is a thin-walled part, the part is relatively long, and the thin-wall length accounts for about 85% of the total length of the part. Figure 1 The thin-walled part includes a first section and a second section with different thicknesses (the first section and the second section are coaxial and have the same inner hole diameter), wherein the thin-wall thickness of the first section is approximately 0.9% of the length of the part, and the thin-wall thickness of the second section is approximately 0.5% of the length of the part. Before the thin-walled part leaves the factory, it is necessary to machine a number of high-precision positioning holes on the end face of the first section (facing away from the second section). Specifically, the positioning holes are machined after the inner and outer holes of the thin-walled part are basically machined in place as a machining reference. However, it is difficult to keep the thin-walled part from deforming during the actual machining process, which makes it difficult to ensure dimensional tolerances and form and position tolerances. Summary of the invention

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a processing tool and method for positioning holes on the end faces of thin-walled parts, the purpose of which is to reliably achieve the support and positioning of the bottom of the thin-walled part and the pressing of the top of the thin-walled part, and the thin-walled part is only subjected to uniform force in the axial direction, so that the thin-walled part is not easily deformed during the actual processing process, thereby ensuring the dimensional tolerance and form and position tolerance of the thin-walled part.

[0005] To achieve the above-mentioned object, in a first aspect, the present invention provides a processing tool for positioning holes on the end faces of thin-walled parts, the processing tool comprising a processing table and a positioning assembly;

[0006] The processing table has a plurality of slide grooves arranged at intervals, and each of the slide grooves extends along a first direction;

[0007] The positioning assembly includes a positioning seat, a plurality of bottom clamping modules and a plurality of top clamping modules. The positioning seat is placed on the processing table. The top of the positioning seat is used to be inserted into the inner holes of the first section and the second section of the thin-walled part, and the bottom of the positioning seat has an outer flange to support the second section of the thin-walled part. Each of the bottom clamping modules includes a first slider, a first pillar and a first pressure plate. The first slider can be slidably inserted in the corresponding slide groove. The first pillar is placed on the processing table. The two ends of the first pressure plate are respectively pressed on the outer flange and the first pillar, and the first pressure plate is inserted with bolts to connect the first slider. Each of the top clamping modules includes a second slider, a second pillar, a second pressure plate and a connecting rod. The second slider can be slidably inserted in the corresponding slide groove. The second pillar is placed on the processing table. The two ends of the second pressure plate are respectively pressed on the end surface of the first section of the thin-walled part and the second pillar. Both ends of the connecting rod are provided with coaxially arranged first studs, one of the first studs is threadedly matched with the second slider, and the other first stud passes through the second pressure plate and then locks the second pressure plate through a nut.

[0008] Optionally, the positioning seat has a cutting fluid collecting groove, the cutting fluid collecting groove is a conical structure, and the cutting fluid collecting groove is facing the direction of the processing table, and the diameter of the cutting fluid collecting groove gradually decreases.

[0009] Optionally, a drainage hole is provided on the positioning seat, and the drainage hole is located below the cutting fluid collecting groove and is connected to the cutting fluid collecting groove.

[0010] Optionally, each of the top clamping modules further includes a third slider, which is slidably inserted in the corresponding slide groove, and a second stud is provided on the third slider, and the top end of the second stud is threadably engaged with the second pillar.

[0011] Optionally, the first pressing plate and the second pressing plate have strip-shaped holes, and the bolts and the first studs can be movably inserted into the corresponding strip-shaped holes.

[0012] Optionally, the slide groove is a T-shaped structure or a dovetail structure.

[0013] Optionally, one end of each of the first pressing plates facing the outer flange and one end of each of the second pressing plates facing away from the second pillar are both conical structures.

[0014] Optionally, both the second pillar and the connecting rod are steel structures, and the diameter of the second pillar is greater than the diameter of the connecting rod.

[0015] In a second aspect, the present invention provides a method for processing a positioning hole on an end face of a thin-walled component. The processing method is based on the processing tooling described in the first aspect, and the processing method comprises:

[0016] Placing the positioning seat on the processing table, and fixing the positioning seat on the processing table by means of the bottom clamping modules;

[0017] The first section and the second section of the thin-walled member are sleeved on the positioning seat, and the thin-walled member is pressed on the positioning seat by a plurality of the top pressing modules;

[0018] The positioning hole is processed on the first end face of the thin-walled part by a machine tool.

[0019] Optionally, before machining the positioning hole on the first end surface of the thin-walled part by a machine tool, the machining method further comprises:

[0020] Install the first adjustment gauge rod on the spindle tool holder of the machine tool, provide a second adjustment gauge rod and a dial indicator, install the dial indicator on the second adjustment gauge rod, and install the second adjustment gauge rod on the first adjustment gauge rod;

[0021] When the dial indicator pointer is on the inside of the machine tool worktable, use the plane mirror reflection principle to calibrate and fine-tune the scale to ensure that the center of the thin-walled part is within ±0.005mm;

[0022] Remove the first adjustment rod and the second adjustment rod, replace the milling cutter, and process the positioning hole.

[0023] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0024] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

[0025] For a processing tool for positioning holes on the end faces of thin-walled parts provided in an embodiment of the present invention, when processing positioning holes on thin-walled parts, first, place the positioning seat on the processing table, and fix the positioning seat on the processing table through a bottom clamping module. Since the first slider can be slidably inserted in the corresponding slide groove and the first pillar is placed on the processing table, the position of the first slider and the first pillar can be easily adjusted, and the position of the first pressure plate can also be easily adjusted, so that the positions of multiple bottom clamping modules on the processing table can be reasonably adjusted, which is convenient for adaptive pressing of the positioning seat. In addition, the two ends of the first pressure plate are respectively pressed on the outer flange and the first pillar, so that reliable pressing and positioning of the positioning seat can be achieved.

[0026] Next, the first section and the second section of the thin-walled part are sleeved on the positioning seat, and the thin-walled part is pressed on the positioning seat by a plurality of top pressing modules. On the one hand, the first section and the second section of the thin-walled part are sleeved on the positioning seat, which can realize the precise positioning of the thin-walled part. In addition, the wall thickness of the first section of the thin-walled part is relatively large. The first section of the thin-walled part is inserted and positioned by the positioning seat, and the insertion length is large, and the inner hole support positioning of the thin-walled part can also be made more reliable. On the other hand, since the second slider can be slidably inserted in the corresponding slide groove, the second pillar is placed on the processing table, and the position of the connecting rod and the second pillar can be conveniently adjusted, and the position of the second pressing plate can also be conveniently adjusted, so that the position of the plurality of top pressing modules on the processing table can be reasonably adjusted, which is convenient for the adaptive pressing of the thin-walled part on the positioning seat, so as to finally realize the support positioning of the bottom of the thin-walled part and the pressing of the top of the thin-walled part reliably, and the thin-walled part is only subjected to uniform force in the axial direction, so that the thin-walled part is not easy to deform during the actual processing process. Finally, the positioning hole is processed on the end face of the first section of the thin-walled part by the machine tool.

[0027] That is to say, the processing tooling for the end face positioning holes of thin-walled parts provided by the embodiment of the present invention can reliably realize the support positioning of the bottom of the thin-walled parts and the pressing of the top of the thin-walled parts. The thin-walled parts are only subjected to uniform force in the axial direction, so that the thin-walled parts are not easily deformed during the actual processing process, thereby ensuring the dimensional tolerance and form and position tolerance of the thin-walled parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a cross-sectional view of a thin-walled member provided by an embodiment of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a tooling for machining end surface positioning holes of thin-walled parts provided by an embodiment of the present invention;

[0030] Figure 3 is a cross-sectional view of a tooling for machining end surface positioning holes of thin-walled parts provided by an embodiment of the present invention;

[0031] Figure 4 It is a flow chart of a method for machining a positioning hole on the end face of a thin-walled part provided by an embodiment of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a first adjustment lever provided in an embodiment of the present invention.

[0033] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0034] 1. Processing table; 11. Slide; 12. Cutting fluid collection tank; 13. Drain hole; 2. Positioning assembly; 21. Positioning seat; 211. External flange; 22. Bottom clamping module; 221. First slider; 222. First pillar; 223. First pressure plate; 2231. Bolt; 23. Top clamping module; 231. Second slider; 232. Second pillar; 233. Second pressure plate; 234. Connecting rod; 2341. First stud; 2342. Nut; 235. Third slider; 2351. Second stud; 3. First adjusting rod; 4. Second adjusting rod; 5. Screw; 100. Thin-walled part; 101. First section; 102. Second section; 103. Positioning hole. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] Example:

[0041] Figure 2 is a schematic structural diagram of a tooling for machining end face positioning holes of thin-walled parts provided by an embodiment of the present invention. Figure 3 is a cross-sectional view of a tooling for machining a positioning hole on the end face of a thin-walled part provided by an embodiment of the present invention, combined with Figure 2 and Figure 3 As shown, the processing tool includes a processing table 1 and a positioning component 2.

[0042] The processing table 1 has a plurality of slide grooves 11 arranged at intervals, and each slide groove 11 extends along a first direction (X-axis direction).

[0043] The positioning assembly 2 includes a positioning seat 21, a plurality of bottom clamping modules 22 and a plurality of top clamping modules 23. The positioning seat 21 is placed on the processing table 1. The top of the positioning seat 21 is used to be inserted into the inner holes of the first section 101 and the second section 102 of the thin-walled part 100, and the bottom of the positioning seat 21 has an outer flange 211 to support the second section 102 of the thin-walled part 100. Each bottom clamping module 22 includes a first slider 221, a first pillar 222 and a first pressing plate 223. The first slider 221 can be slidably inserted in the corresponding slide groove 11. The first pillar 222 is placed on the processing table 1. The two ends of the first pressing plate 223 are respectively pressed on the outer flange 211 and the first pillar 222, and the first pressing plate 223 A bolt 2231 is inserted on it to connect the first slider 221. Each top clamping module 23 includes a second slider 231, a second pillar 232, a second pressure plate 233 and a connecting rod 234. The second slider 231 can be slidably inserted in the corresponding slide groove 11. The second pillar 232 is placed on the processing table 1. The two ends of the second pressure plate 233 are respectively pressed on the end surface of the first section 101 of the thin-walled part 100 and the second pillar 232. Both ends of the connecting rod 234 are provided with coaxially arranged first studs 2341. One first stud 2341 is threadedly matched with the second slider 231, and the other first stud 2341 passes through the second pressure plate 233 and locks the second pressure plate 233 through a nut 2342.

[0044] For a processing tool for positioning holes on the end faces of thin-walled parts provided in an embodiment of the present invention, when processing positioning holes 103 on thin-walled parts 100, first, place the positioning seat 21 on the processing table 1, and fix the positioning seat 21 on the processing table 1 through the bottom clamping modules 22. Since the first slider 221 can be slidably inserted in the corresponding slide groove 11, and the first pillar 222 is placed on the processing table 1, the positions of the first slider 221 and the first pillar 222 can be easily adjusted, and the position of the first pressing plate 223 can also be easily adjusted, so that the positions of multiple bottom clamping modules 22 on the processing table 1 can be reasonably adjusted, so as to facilitate adaptive pressing of the positioning seat 21. In addition, the two ends of the first pressing plate 223 are pressed on the outer flange 211 and the first pillar 222 respectively, so that reliable pressing and positioning of the positioning seat 21 can be achieved.

[0045] Next, the first section 101 and the second section 102 of the thin-walled component 100 are sleeved on the positioning seat 21, and the thin-walled component 100 is pressed on the positioning seat 21 through a plurality of top pressing modules 23. On the one hand, the first section 101 and the second section 102 of the thin-walled component 100 are sleeved on the positioning seat 21, so that the thin-walled component 100 can be accurately positioned. In addition, the wall thickness of the first section 101 of the thin-walled component 100 is relatively large, and the first section 101 of the thin-walled component 100 is inserted and positioned by the positioning seat 21, and the insertion length is large, and at the same time, the inner hole support positioning of the thin-walled component 100 can be made more reliable. On the other hand, since the second slider 231 can be slidably inserted in the corresponding slide groove 11, and the second pillar 232 is placed on the processing table 1, the position of the connecting rod 234 and the second pillar 232 can be conveniently adjusted, and the position of the second pressing plate 233 can also be conveniently adjusted, so that the position of multiple top clamping modules 23 on the processing table 1 can be reasonably adjusted, which is convenient for adaptively pressing the thin-walled part 100 on the positioning seat 21, so as to finally reliably realize the support positioning of the bottom of the thin-walled part 100 and the pressing of the top of the thin-walled part 100, and the thin-walled part 100 is only subjected to uniform force in the axial direction, so that the thin-walled part 100 is not easy to deform during the actual processing. Finally, the positioning hole 103 is processed on the end face of the first section 101 of the thin-walled part 100 by the machine tool.

[0046] That is to say, the processing tooling for the end face positioning hole of a thin-walled part provided by the embodiment of the present invention can reliably realize the support positioning of the bottom of the thin-walled part 100 and the pressing of the top of the thin-walled part 100. The thin-walled part 100 is only subjected to uniform force in the axial direction, so that the thin-walled part 100 is not easy to deform during the actual processing process, thereby ensuring the dimensional tolerance and form and position tolerance of the thin-walled part 100.

[0047] It is easy to understand that since the positions of the bottom clamping module 22 and the top clamping module 23 relative to the processing table 1 are adjustable, the position of the thin-walled part 100 can be adjusted to ensure the accuracy between the thin-walled part 100 and the milling cutter on the machine tool.

[0048] Exemplarily, the number of the bottom clamping modules 22 and the number of the top clamping modules 23 are both two, and the two bottom clamping modules 22 and the two top clamping modules 23 are arranged at intervals along the circumference of the processing table 1 to avoid mutual interference.

[0049] In addition, the outer diameter of the positioning seat 21 and the inner diameter of the thin-walled part 100 are matched with each other in a clearance of 0.01-0.05 mm.

[0050] Preferably, the axial length of the positioning seat 21 is twice the axial length of the second section 102 .

[0051] In this embodiment, the positioning seat 21 has a cutting fluid collection groove 12, which is a conical structure, and the cutting fluid collection groove 12 faces the direction of the processing table 1, and the diameter of the cutting fluid collection groove 12 gradually decreases. When the thin-walled part 100 is cut, the cutting fluid collection groove 12 can collect the cutting fluid for subsequent processing.

[0052] Furthermore, the positioning seat 21 has a drain hole 13, which is located below the cutting fluid collecting groove 12 and communicates with the cutting fluid collecting groove 12. The drain hole 13 can discharge the cutting fluid collected by the cutting fluid collecting groove 12 to prevent the cutting fluid from gathering between the inner hole of the thin-walled part 100 and the positioning seat 21.

[0053] In one implementation of the present invention, each top clamping module 23 also includes a third slider 235, which can be slidably inserted in the corresponding slide groove 11, and a second stud 2351 is provided on the third slider 235, and the top end of the second stud 2351 is threadedly matched with the second pillar 232.

[0054] In the above embodiment, the connection between the third slider 235 and the second pillar 232 is achieved by the second stud 2351, which can avoid the problem of the second pillar 232 moving or tipping over due to the high center of gravity when the top surface of the thin-walled part 100 is pressed, thereby increasing the reliability of the arrangement of the second pillar 232 on the processing table 1.

[0055] In addition, the first pressing plate 223 and the second pressing plate 233 have strip holes, and the bolts 2231 and the first studs 2341 can be movably inserted in the corresponding strip holes. The strip holes can conveniently adjust the position of the bolts 2231 or the first studs 2341 relative to the first pressing plate 223 or the second pressing plate 233, and can reduce the movement of the first pressing plate 223 and the second pressing plate 233 during the tightening process (that is, only the bolts 2231 or the first studs 2341 need to be moved).

[0056] Continue to see Figure 2 The slide groove 11 is a T-shaped structure or a dovetail structure, thereby effectively preventing the first slider 221, the second slider 231 and the third slider 235 from detaching from the processing table 1 in the vertical direction.

[0057] In this embodiment, the end of each first pressure plate 223 facing the outer flange 211 and the end of each second pressure plate 233 facing away from the second pillar 232 are both conical structures, which can effectively compensate for the height difference between the first pressure plate 223 and the outer flange 211 or the height difference between the second pressure plate 233 and the top surface of the thin-walled part 100, thereby facilitating the pressing of the outer flange 211 or the thin-walled part 100.

[0058] Exemplarily, the second pillar 232 and the connecting rod 234 are both steel structures, and the diameter of the second pillar 232 is greater than the diameter of the connecting rod 234. The second pillar 232 has a large supporting strength, and can achieve reliable support for the second pressing plate 233.

[0059] Figure 4 FIG. 1 is a flow chart of a method for machining a positioning hole on an end face of a thin-walled component provided by an embodiment of the present invention. Figure 4 As shown, the processing method is based on the above-mentioned processing tooling, and the processing method includes:

[0060] S1. Place the positioning seat 21 on the processing table 1 and fix the positioning seat 21 on the processing table 1 by means of a bottom pressing module 22.

[0061] It should be noted that when the positioning seat 21 is installed, the drain hole 13 is basically aligned with the slide groove 11 of the processing table 1, so that the coolant passing through the center position of the thin-walled part during the processing will not be accumulated at the center position of the thin-walled part, and can quickly flow into the equipment for recycling.

[0062] S2 , sleeve the first section 101 and the second section 102 of the thin-walled component 100 on the positioning seat 21 , and press the thin-walled component 100 onto the positioning seat 21 through a plurality of top pressing modules 23 .

[0063] It should be noted that when compacting the thin-walled part 100, first press lightly on the thin-walled part 100 with a small force, and then use the tool to compact the part evenly multiple times on the left and right sides.

[0064] S3. Processing a positioning hole 103 on the end surface of the first section 101 of the thin-walled part 100 by a machine tool.

[0065] The specific operations are as follows:

[0066] S31, using a center drill to perform positioning processing on the positioning hole 103 to be processed, to ensure that the position and size of the hole processed subsequently will not be offset.

[0067] S32, use a drill bit 0.3 mm smaller than the positioning hole 103 to perform drilling to remove most of the residual material in the hole.

[0068] S33, use a drill bit 0.1mm smaller than the processed positioning hole 103 to carry out hole expansion processing, so that a small amount of margin is left on the side wall of the hole in preparation for boring.

[0069] S34, use a boring tool to perform boring processing on the positioning hole 103. Boring to the final size by fine-tuning the fine-tuning knob on the side of the boring tool.

[0070] S35. Use a chamfering cutter to remove excess burrs from the hole.

[0071] S36. Remove and clean the parts.

[0072] It should be noted that due to the high height of the parts after installation, the processing may involve the processing of positioning holes, drilling, reaming, boring and other program operations. Direct tool change will collide with the parts and the clamp. Therefore, each time the robot changes the tool, it moves horizontally in the X direction to the appropriate position according to the height of the equipment to avoid interference in the tool change process.

[0073] After step S3, the processing method further comprises:

[0074] S4. Set the tool holder for alignment to be replaced on the spindle in advance at the end of the program, and add the M00 unconditional pause command at the end, followed by the workpiece coordinate system zero position movement command, so that it can be quickly moved to the coordinate system position after the part is replaced, and then fine-tuned after alignment.

[0075] The purpose of step S4 is to save auxiliary time and reduce labor intensity.

[0076] A processing method for positioning holes on the end faces of thin-walled parts provided in an embodiment of the present invention can reliably realize the support and positioning of the bottom of the thin-walled part 100 and the pressing of the top of the thin-walled part 100. The thin-walled part 100 is only subjected to uniform force in the axial direction, so that the thin-walled part 100 is not easy to deform during the actual processing, thereby ensuring the dimensional tolerance and form and position tolerance of the thin-walled part 100.

[0077] Furthermore, before step S3, the processing method further includes:

[0078] S21. Install the first adjustment gauge rod 3 on the spindle tool holder of the machine tool, and provide a second adjustment gauge rod 4 and a dial indicator, install the dial indicator on the second adjustment gauge rod 4, and install the second adjustment gauge rod 4 on the first adjustment gauge rod 3.

[0079] For example, the second adjustment rod 4 and the first adjustment rod 3 are connected by screws 5, and the size of the screws 5 is M5 (see Figure 5 ).

[0080] S22. When the dial indicator pointer is on the inner side of the machine tool worktable, use the plane mirror reflection principle to calibrate and fine-tune the scale to ensure that the center of the thin-walled part is aligned within ±0.005mm.

[0081] S23 , disassembling the first adjusting gauge rod 3 and the second adjusting gauge rod 4 , replacing the milling cutter, and machining the positioning hole 103 .

[0082] In the above embodiment, the first adjustment rod 3 , the second adjustment rod 4 and the dial indicator can be used to conveniently locate the thin-walled part 100 , thereby accurately determining its center, thereby ensuring the processing accuracy of the positioning hole 103 .

[0083] It should be noted that the processing tool is particularly suitable for processing positioning holes 103 of various sizes on the end face of the thin-walled part 100. Since the support and positioning of the processing tool are reliable, when processing different sizes of the end face of the thin-walled part 100, not only is the processing convenient, but the dimensional tolerance and form and position tolerance of the thin-walled part 100 can also be effectively guaranteed.

[0084] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tooling for machining positioning holes on the end faces of thin-walled parts, characterized in that: The processing tool comprises a processing table (1) and a positioning component (2); The processing table (1) is provided with a plurality of slide grooves (11) arranged at intervals, and each of the slide grooves (11) extends along a first direction; The positioning assembly (2) comprises a positioning seat (21), a plurality of bottom clamping modules (22) and a plurality of top clamping modules (23); the positioning seat (21) is placed on the processing table (1); the top of the positioning seat (21) is used to be inserted into the inner holes of the first section (101) and the second section (102) of the thin-walled part (100); and the bottom of the positioning seat (21) has an outer flange (211) to support the second section (102) of the thin-walled part (100); each of the bottom clamping modules (22) comprises a first slider (221), a first pillar (222) and a first pressing plate (223); the first slider (221) is slidably inserted into the corresponding slide groove (11); the first pillar (222) is placed on the processing table (1); the two ends of the first pressing plate (223) are respectively pressed on the outer flange (211) and the first pillar (222); and the first pressing plate A bolt (2231) is inserted on (223) to connect the first slider (221), and each of the top clamping modules (23) includes a second slider (231), a second pillar (232), a second pressure plate (233) and a connecting rod (234). The second slider (231) can be slidably inserted in the corresponding slide groove (11), and the second pillar (232) is placed on the processing table (1). The two ends of the second pressure plate (233) are respectively pressed on the end surface of the first section (101) of the thin-walled part (100) and on the second pillar (232). Both ends of the connecting rod (234) are provided with coaxially arranged first studs (2341), one of the first studs (2341) is threadedly matched with the second slider (231), and the other first stud (2341) passes through the second pressure plate (233) and then locks the second pressure plate (233) through a nut (2342).

2. A tooling for machining positioning holes on the end faces of thin-walled parts according to claim 1, characterized in that: The positioning seat (21) has a cutting fluid collecting groove (12), the cutting fluid collecting groove (12) is a conical structure, and the cutting fluid collecting groove (12) faces the direction of the processing table (1), and the diameter of the cutting fluid collecting groove (12) gradually decreases.

3. A tooling for machining positioning holes on the end faces of thin-walled parts according to claim 2, characterized in that: The positioning seat (21) is provided with a drainage hole (13), and the drainage hole (13) is located below the cutting fluid collecting groove (12) and is in communication with the cutting fluid collecting groove (12).

4. A tooling for machining positioning holes on the end faces of thin-walled parts according to claim 1, characterized in that: Each of the top clamping modules (23) further includes a third slider (235), which can be slidably inserted into the corresponding slide groove (11), and a second stud (2351) is provided on the third slider (235), and the top end of the second stud (2351) is threadedly engaged with the second pillar (232).

5. A tooling for machining positioning holes on the end faces of thin-walled parts according to any one of claims 1 to 4, characterized in that: The first pressing plate (223) and the second pressing plate (233) are provided with strip-shaped holes, and the bolts (2231) and the first studs (2341) can be movably inserted into the corresponding strip-shaped holes.

6. A tooling for machining positioning holes on the end faces of thin-walled parts according to any one of claims 1 to 4, characterized in that: The slide groove (11) is a T-shaped structure or a dovetail-shaped structure.

7. A tool for processing positioning holes on the end faces of thin-walled parts according to any one of claims 1 to 4, characterized in that: One end of each of the first pressing plates (223) facing the outer flange (211) and one end of each of the second pressing plates (233) facing away from the second pillar (232) are both conical structures.

8. A tooling for machining positioning holes on the end faces of thin-walled parts according to any one of claims 1 to 4, characterized in that: The second pillar (232) and the connecting rod (234) are both steel structures, and the diameter of the second pillar (232) is greater than the diameter of the connecting rod (234).

9. A method for processing positioning holes on the end faces of thin-walled parts, characterized in that: The processing method is based on the processing tooling according to any one of claims 1 to 8, and the processing method comprises: Placing the positioning seat (21) on the processing table (1), and fixing the positioning seat (21) on the processing table (1) by using the bottom clamping modules (22); The first section (101) and the second section (102) of the thin-walled member (100) are sleeved on the positioning seat (21), and the thin-walled member (100) is pressed onto the positioning seat (21) by using a plurality of top pressing modules (23); A positioning hole (103) is machined on the end surface of the first section (101) of the thin-walled part (100) by a machine tool.

10. A method for machining end face positioning holes of thin-walled parts according to claim 9, characterized in that: Before machining the positioning hole (103) on the end surface of the first section (101) of the thin-walled part (100) by a machine tool, the machining method further comprises: The first adjusting gauge rod (3) is mounted on the spindle tool holder of the machine tool, and a second adjusting gauge rod (4) and a dial indicator are provided, the dial indicator is mounted on the second adjusting gauge rod (4), and the second adjusting gauge rod (4) is mounted on the first adjusting gauge rod (3); When the dial indicator pointer is on the inside of the machine tool worktable, use the plane mirror reflection principle to calibrate and fine-tune the scale to ensure that the center of the thin-walled part is within ±0.005mm; The first adjusting gauge rod (3) and the second adjusting gauge rod (4) are disassembled, the milling cutter is replaced, and the positioning hole (103) is processed.

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