A tooling for machining stator lips

Abstract

The utility model discloses a tool tool for processing stator stop mouth belongs to motor processing equipment technical field, it includes: frock frame and turning tool installation component, frock frame and turning tool rest detachable connection, turning tool installation component includes right -hand tool, reverse turning tool and set up first installation unit and second installation unit on frock frame, right -hand tool is connected with turning tool rest through first installation unit, and reverse turning tool is connected with turning tool rest through second installation unit, and right -hand tool and reverse turning tool are mutually symmetrical and set up, and the distance between right -hand tool and reverse turning tool can be adjusted relatively to supply the adaptation different length's stator. The utility model can set up double tool structure, can process the stop mouth to the both ends of motor stator simultaneously, eliminates the positioning error caused by secondary clamping, guarantees the coaxial degree requirement of stop mouth processing.

Description

Technical Field

[0001] This utility model relates to the field of motor processing equipment technology, and in particular to a tooling fixture for processing stator stops. Background Technology

[0002] The concentricity of the stator and rotor of a motor is an important dimension in the motor manufacturing industry. Excessive concentricity can lead to problems such as low motor efficiency, inability to rotate the motor, high noise, and excessive vibration. In order to improve the dimensional accuracy of the concentricity of the stator and rotor, some manufacturers will add a stop process at both ends of the motor housing after the motor windings are installed in the housing to ensure their concentricity.

[0003] One method of machining the stop is to install the stator on the machine tool, machine one end of the stop first, then turn the stator around and reinstall it, and then machine the other end of the stop. Another method is to install the stator on the machine tool, machine one end of the stop first, and then rotate the tool post to machine the other end of the stop.

[0004] Of these two methods, the first method requires secondary clamping, which introduces clamping errors and wastes processing time; the second method requires rotating the tool holder for secondary processing, which also wastes processing time. Utility Model Content

[0005] In view of this, it is necessary to provide a tooling fixture for machining the stator stop to solve the problems of difficult machining of the two stops of the existing motor stator and poor concentricity.

[0006] This utility model provides a tooling fixture for machining stator stops, which is mounted on a lathe tool holder and includes: The tool holder is detachably connected to the tool post; A lathe tool mounting assembly includes a forward lathe tool, a reverse lathe tool, and a first mounting unit and a second mounting unit disposed on the tool holder. The forward lathe tool is connected to the tool holder through the first mounting unit, and the reverse lathe tool is connected to the tool holder through the second mounting unit. The forward lathe tool and the reverse lathe tool are symmetrically arranged, and the distance between the forward lathe tool and the reverse lathe tool can be adjusted to accommodate stators of different lengths.

[0007] Furthermore, the first mounting unit includes a first groove and a clamping block. The first groove is formed on the tooling frame. One side of the first groove is provided with a slot that is clearance-fitted with the forward turning tool. The forward turning tool is inserted into the slot. The clamping block is connected to the tooling frame by bolts. The clamping block can press and fix the forward turning tool.

[0008] Furthermore, the height of the first groove is less than the height of the positive cutting tool, forming a protrusion that is adapted to the clamping block.

[0009] Furthermore, the second mounting unit includes a second groove and a fastening bolt. The second groove is formed in the tooling frame, with openings at both ends. The middle part of the second groove extends relative to the first groove. The reverse cutting tool is slidably inserted into the second groove and can move relative to the first groove. The fastening bolt abuts against the reverse cutting tool through the second groove.

[0010] Furthermore, the second mounting unit includes a plurality of screw holes, which are formed on the tooling frame and communicate with the second groove. The plurality of screw holes are arranged in an array to form a plurality of mounting positions for mounting reverse cutting tools.

[0011] Furthermore, the mounting position is provided with at least two screw holes.

[0012] Furthermore, the height of the second groove is greater than the height of the reverse cutting tool, forming an adjustment gap.

[0013] Furthermore, one side of the tooling frame is provided with a connecting part for connecting with the lathe tool holder.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a tooling fixture for machining stator stops, comprising a cutting tool mounting assembly. The assembly includes a forward cutting tool, a reverse cutting tool, and a first mounting unit and a second mounting unit mounted on a fixture frame. The forward cutting tool is connected to the tool holder via the first mounting unit, and the reverse cutting tool is connected to the tool holder via the second mounting unit. The forward and reverse cutting tools are symmetrically arranged, with their cutting tips facing each other or back to back. This allows for the cutting of symmetrical stops at both ends of the stator, ensuring the concentricity of the motor windings. By adjusting the first and second mounting units, the distance between the forward and reverse cutting tools can be adjusted to accommodate stators of different lengths, improving the adaptability of the tooling fixture. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the tooling frame in this utility model; Figure 4This is a schematic diagram of the overall structure of the present invention. Figure 3 ; Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 4 .

[0016] In the diagram, 100 is the tooling frame; 110 is the connecting part. 200. Tool mounting assembly; 210. Positive turning tool; 220. Negative turning tool; 230. First mounting unit; 231. First groove; 232. Clamping block; 240. Second mounting unit; 241. Second groove; 242. Fastening bolt; 243. Screw hole. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0018] This embodiment describes a tooling fixture for machining stator stops, which relates to the field of motor processing equipment technology. It features a dual-tool structure that can simultaneously machine stops at both ends of the motor stator, eliminating positioning errors caused by secondary clamping and ensuring the coaxiality requirements of the stop machining.

[0019] Please see Figures 1 to 5 This embodiment provides a tooling fixture for machining stator stops, including a tooling frame 100 and a lathe tool mounting assembly 200. The tooling frame 100 is detachably connected to the lathe tool post, and the tooling frame 100 can be disassembled and assembled as a whole, which facilitates the maintenance of the tooling frame 100.

[0020] The cutting tool mounting assembly 200 includes a forward cutting tool 210, a reverse cutting tool 220, and a first mounting unit 230 and a second mounting unit 240 mounted on the tool holder 100. The forward cutting tool 210 is connected to the cutting tool holder via the first mounting unit 230, and the reverse cutting tool 220 is connected to the cutting tool holder via the second mounting unit 240. The forward cutting tool 210 and the reverse cutting tool 220 are symmetrically arranged, with their cutting edges facing each other or away from each other. This allows for the cutting of symmetrical stops at both ends of the stator, thereby ensuring the concentricity of the motor windings. By adjusting the first mounting unit 230 and the second mounting unit 240, the distance between the forward cutting tool 210 and the reverse cutting tool 220 can be adjusted to accommodate stators of different lengths, thus improving the adaptability of the tooling.

[0021] During use, the fixture 100 is rigidly connected to the lathe tool post via the connecting part 110, forming a stable machining reference. When machining stators of different specifications, the distance between the forward turning tool 210 and the reverse turning tool 220 can be adjusted using the first mounting unit 230 and the second mounting unit 240 to establish a new tool spacing. During machining, the forward and reverse turning tools 220 act simultaneously on both ends of the workpiece, completing double-stop machining in a single clamping. Compared with existing technologies, traditional single-tool systems require secondary clamping or tool post rotation operations. This solution eliminates repetitive positioning errors through the symmetrical arrangement of two tools. Existing fixtures cannot adjust the tool spacing; this solution uses a sliding mounting unit to achieve rapid adjustment, adapting to the machining needs of multiple product specifications.

[0022] In some embodiments, please refer to Figure 2 and Figure 3 The first mounting unit 230 includes a first groove 231 and a clamping block 232. The first groove 231 is formed on the tooling frame 100. One side of the first groove 231 has a slot that fits with the turning tool 210 with clearance. The turning tool 210 is inserted into the first groove 231. The clamping block 232 is connected to the tooling frame 100 by bolts. The clamping block 232 can press and fix the turning tool 210, realizing the positioning and fixation of the turning tool 210. The combination of the first groove 231 and the clamping block 232 realizes the quick disassembly and precise positioning of the turning tool 210. Tool replacement can be completed without adjusting the overall position of the tool holder, significantly shortening the auxiliary processing time.

[0023] In specific implementation, the first groove 231 is a recessed structure for accommodating the turning tool 210. Specifically, it can be a rectangular cross-section groove. The sidewall of the first groove 231 forms a clearance fit with the turning tool 210 to allow for minor positional adjustments, thus adapting to the installation requirements of tools of different sizes. The clamping block 232 is a rigid component for clamping and fixing the turning tool 210, specifically a metal block with a flat surface. The clamping block 232 is bolted to the fixture 100, providing the necessary fastening force to ensure that the turning tool 210 does not shift during machining. The notch is an opening structure on the side of the first groove 231, specifically a notch with a width slightly larger than the thickness of the turning tool 210. The clearance fit between the first groove 231 and the turning tool 210 allows the turning tool 210 to have a preliminary positioning function after insertion, while also providing space for the subsequent clamping operation of the clamping block 232.

[0024] During operation, the forward cutting tool 210 is initially positioned by inserting into the slot of the first groove 231. The clearance fit between the groove and the forward cutting tool 210 allows for fine-tuning of the tool in the horizontal direction. Subsequently, by tightening the bolt, the clamping block 232 moves downward, directly pressing against the upper surface of the forward cutting tool 210, forming a stable three-point clamping structure. The clamping force can be flexibly controlled by adjusting the tightness of the bolt, preventing the tool from vibrating or shifting during high-speed cutting.

[0025] In some embodiments, please refer to Figure 3 The height of the first groove 231 is less than the height of the slewing tool 210, forming a protrusion that is adapted to the clamping block 232. The clamping block 232 can directly act on the protrusion. The clamping block 232 and the protrusion directly abut against each other to form a rigid fixing structure, thereby significantly improving the vibration resistance of the slewing tool 210 under high-speed cutting conditions, and simplifying the positioning operation process when changing tools.

[0026] In the specific implementation process, the height of the first groove 231 is the dimension of the first groove 231 along the vertical direction perpendicular to the mounting surface of the tooling fixture 100. The depth of the groove can be controlled during machining. The height of the first groove 231 is less than the total height of the forward turning tool 210 after installation, so that a part of the forward turning tool 210 is exposed to form a support structure. The protrusion refers to the extended area of ​​the forward turning tool 210 not covered by the first groove 231, specifically formed by the height difference between the tool and the groove. The extended area forms a force transmission path with the contact surface of the clamping block 232, which is used to realize the axial fixation of the tool by the clamping block 232.

[0027] When the forward turning tool 210 is inserted into the first groove 231, its bottom contactes the bottom of the groove, while the top of the tool is exposed due to insufficient groove height. When the clamping block 232 is fixed to the fixture 100 by bolts, its downward pressing surface directly acts on this exposed area, pressing the forward turning tool 210 firmly against the bottom of the groove. The height difference of the protrusion forms a clear limiting reference, and the clamping block 232 can achieve accurate tool positioning without additional adjustment.

[0028] In some embodiments, please refer to Figure 2 and Figure 3 The second mounting unit 240 includes a second groove 241 and a fastening bolt 242. The second groove 241 is formed in the tooling frame 100, with openings at both ends. The middle of the second groove 241 extends relative to the first groove 231. A reverse cutting tool 220 is slidably inserted into the second groove 241. The reverse cutting tool 220 can move relative to the first groove 231, adjusting the distance between the reverse cutting tool 220 and the forward cutting tool 210, thereby allowing the two cutting tools to be adapted to stators of different lengths. The fastening bolt 242 abuts against the reverse cutting tool 220 through the second groove 241, thereby fixing the adjusted reverse cutting tool 220.

[0029] In the specific implementation process, the second groove 241 is a through groove structure opened on the tooling frame 100. It can be formed by milling to form a through groove that runs through both sides of the tooling frame 100. The openings at both ends of the through groove allow the reverse cutting tool 220 to slide along the axial direction of the groove. The fastening bolt 242 is a threaded locking component. The fastening bolt 242 can be a standard hexagonal head bolt. By tightening the fastening bolt 242, the end contacts the side of the reverse cutting tool 220 to generate friction.

[0030] During operation, after the reverse cutting tool 220 is inserted into the second groove 241 via the tool shank, the distance between it and the forward cutting tool 210 can be adjusted along the extension direction of the groove. When it is necessary to adapt to stators of different lengths, the operator loosens the fastening bolt 242, pushes the reverse cutting tool 220 to the target position, and then re-tightens the bolt, so that the cutting tip of the reverse cutting tool 220 and the cutting tip of the forward cutting tool 210 form a symmetrical machining position. Since the middle of the second groove 241 extends towards the first groove 231, the reverse cutting tool 220 always maintains a parallel alignment with the forward cutting tool 210 during movement, ensuring the coaxiality of the two end stops.

[0031] In some embodiments, please refer to Figure 2 and Figure 3 The second mounting unit 240 includes multiple screw holes 243, which are formed on the tooling frame 100 and communicate with the second groove 241. The multiple screw holes 243 are arranged in a relative array to form multiple mounting positions for mounting the reverse cutting tool 220. The reverse cutting tool 220 can be fixed at each mounting position, so that the distance between the reverse cutting tool 220 and the forward cutting tool 210 can be adjusted in steps, so that the reverse cutting tool 220 can be locked in different positions, thereby adapting to the stator machining requirements of different lengths.

[0032] In practical implementation, the threaded hole 243 refers to a hole structure with internal threads, which can be completed using drilling and tapping processes. It is used to mate with the fastening bolt 242 to fix the position of the reverse cutting tool 220. Multiple threaded holes 243 are distributed according to a preset spacing or arrangement pattern, specifically using a linear or matrix arrangement to form multiple selectable fixing points. The mounting position is a fixing area formed by the combination of threaded holes 243, which can be achieved by adjusting the mating position of the reverse cutting tool 220 with different threaded holes 243, to accommodate stators of different lengths.

[0033] Specifically, the tooling holder 100 has multiple screw holes 243 on both sides of the second groove 241, which are spaced apart along the extension direction of the second groove 241. When it is necessary to adjust the distance between the reverse tool 220 and the forward tool 210, the reverse tool 220 can slide along the second groove 241 to the target position and be fixed by selecting the corresponding screw hole 243 and engaging with the fastening bolt 242. Each mounting position contains at least two screw holes 243. By screwing the fastening bolt 242 into the screw holes 243 at different positions, the number of fastening bolts 242 can be increased, thereby increasing the support points of the reverse tool 220 and ensuring the stable fastening of the reverse tool 220.

[0034] During operation, multiple screw holes 243 are pre-drilled on the tooling fixture 100. These screw holes 243 are arranged in an array along the extension direction of the second groove 241, forming multiple mounting positions. Each mounting position contains at least two screw holes 243. By screwing the fastening bolts 242 into the screw holes 243 at different positions, the distance between the reverse cutting tool 220 and the forward cutting tool 210 can be adjusted. When a longer stator needs to be machined, the reverse cutting tool 220 can be moved to a mounting position away from the forward cutting tool 210 and fixed by the bolts in the corresponding screw holes 243; conversely, the distance is shortened. Thus, without disassembling or changing the tooling, different stator specifications can be quickly adapted simply by adjusting the bolt positions.

[0035] In some embodiments, please refer to Figure 5 The height of the second groove 241 is greater than the height of the reverse cutting tool 220, forming an adjustment gap. By setting an adjustment gap between the groove and the tool, the tool has an adjustable margin in the vertical direction, which can compensate for machine tool clamping errors and workpiece size deviations, and avoid machining errors caused by insufficient tool installation accuracy.

[0036] In practical implementation, the second groove 241 is a recessed structure formed in the tooling 100 to accommodate the reverse tool 220. Specifically, it can be formed into a through groove structure by milling, and its longitudinal dimension is larger than the height dimension of the reverse tool 220. The adjustment clearance refers to the vertical space formed between the second groove 241 and the reverse tool 220, which can be achieved by controlling the dimensional difference between the height of the groove and the height of the tool. The clearance allows the reverse tool 220 to be adjusted in the vertical direction.

[0037] When the reverse cutting tool 220 is installed into the second groove 241, an adjustable gap is maintained between the tip of the tool and the top surface of the groove. This gap provides operating space for adjusting the vertical position of the tool, and the operator can change the installation height of the reverse cutting tool 220 by adjusting the tightening position of the fastening bolt 242. When machining stators of different specifications, by adjusting the vertical position of the reverse cutting tool 220, its cutting edge is made to form a precise symmetrical relationship with the forward cutting tool 210, thereby ensuring the concentricity of the stops at both ends.

[0038] In some embodiments, please refer to Figure 1 The tool holder 100 has a connecting part 110 on one side for connecting with the tool post. The tool holder 100 and the tool post can be quickly connected by the connecting part 110, which reduces the impact of clamping errors on the machining accuracy of the stator stop and simplifies the operation process. It is especially suitable for machining scenarios that require frequent tool changes or adaptation to different machine tools.

[0039] In the specific implementation process, the connecting part 110 is a structural component set on the side of the tooling frame 100. Specifically, it can be a bolt hole, a snap-fit ​​groove or a dovetail groove. Its function is to form a detachable fixed connection between the tooling frame 100 and the tool holder, thereby ensuring the stability of the tool during the machining process.

[0040] During operation, the fixture 100 is directly fixed to the tool post via the connecting part 110. This can be achieved by bolts passing through the through-hole of the connecting part 110 and locking it to the threaded hole of the tool post, or by a snap-fit ​​structure for quick installation. The design of the connecting part 110 allows the fixture 100 to be adapted to different types of tool posts without requiring additional adjustments to the machine tool structure. During machining, the fixture 100 maintains a rigid connection with the tool post via the connecting part 110, preventing displacement due to vibration or cutting forces, thereby ensuring the symmetrical accuracy of the forward cutting tool 210 and the reverse cutting tool 220.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A tooling fixture for machining stator stops, mounted on a lathe tool holder, characterized in that, include: The tool holder is detachably connected to the tool post; A lathe tool mounting assembly includes a forward lathe tool, a reverse lathe tool, and a first mounting unit and a second mounting unit disposed on the tool holder. The forward lathe tool is connected to the tool holder through the first mounting unit, and the reverse lathe tool is connected to the tool holder through the second mounting unit. The forward lathe tool and the reverse lathe tool are symmetrically arranged, and the distance between the forward lathe tool and the reverse lathe tool can be adjusted to accommodate stators of different lengths.

2. The tooling fixture for machining stator stops according to claim 1, characterized in that, The first mounting unit includes a first groove and a clamping block. The first groove is formed on the tooling frame. One side of the first groove is provided with a slot that is clearance-fitted with the forward turning tool. The forward turning tool is inserted into the slot. The clamping block is connected to the tooling frame by bolts. The clamping block can press and fix the forward turning tool.

3. The tooling fixture for machining stator stops according to claim 2, characterized in that, The height of the first groove is less than the height of the positive cutting tool, forming a protrusion that is adapted to the clamping block.

4. The tooling fixture for machining stator stops according to claim 2, characterized in that, The second mounting unit includes a second groove and a fastening bolt. The second groove is formed in the tooling frame. The two ends of the second groove are open. The middle part of the second groove extends relative to the first groove. The reverse cutting tool is slidably inserted into the second groove. The reverse cutting tool can move relative to the first groove. The fastening bolt abuts against the reverse cutting tool through the second groove.

5. The tooling fixture for machining stator stops according to claim 4, characterized in that, The second mounting unit includes multiple screw holes, which are formed on the tooling frame and communicate with the second groove. The multiple screw holes are arranged in an array to form multiple mounting positions for mounting reverse cutting tools.

6. A tooling fixture for machining stator stops according to claim 5, characterized in that, The mounting position is provided with at least two screw holes.

7. A tooling fixture for machining stator stops according to claim 6, characterized in that, The height of the second groove is greater than the height of the reverse cutting tool, forming an adjustment gap.

8. The tooling fixture for machining stator stops according to claim 1, characterized in that, One side of the tooling frame is provided with a connecting part for connecting to the lathe tool post.

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