Framework positioning device for small motor machining

Abstract

The utility model discloses a skeleton positioning device of small -size motor processing, including bearing assembly, and bearing assembly includes the bearing disc, and the upper end of bearing disc is installed with positioning assembly, and positioning assembly includes the rotation seat of rotation installation in the center inner wall of bearing disc, and the lower end inner wall of rotation seat is seted up and is distributed symmetrically in the sliding slot, and the inner wall of rotation seat still rotation installation has double toothed screw rod, and positioning assembly still includes the sliding block of screw thread installation in the outer wall of double toothed screw rod and symmetry, and the sliding block sliding installation is in the sliding slot, and the internal thread of sliding block is opposite, and positioning assembly still includes the positioning frame of fixed connection on the upper end of sliding block, and the one end of positioning frame is away from each other all and is fixedly connected with soft pad no.

Description

Technical Field

[0001] This utility model relates to the field of motor frame technology, specifically to a frame positioning device for small motor processing. Background Technology

[0002] In the motor manufacturing process, the frame is one of the core components of the motor, and its machining accuracy directly affects the assembly quality, operational stability and service life of the motor. In the frame machining process, the positioning device is the key equipment to achieve precise clamping of the frame and ensure the smooth progress of subsequent cutting, drilling and assembly processes. Its positioning accuracy, versatility and clamping protection play a decisive role in the machining efficiency and finished product qualification rate of the motor frame.

[0003] Conventional motor machining frame positioning devices typically employ a single cylindrical mandrel structure. Radial positioning of the frame is achieved through surface contact between the mandrel's outer surface and the frame's inner hole. However, in practical production applications, this traditional positioning device suffers from continuous friction between the mandrel's outer surface and the frame's inner hole during repeated frame clamping and disassembly operations. Over time, this leads to wear, roundness deviations, and other failures. Furthermore, the fixed outer diameter of traditional cylindrical mandrels only accommodates a single type of frame inner hole. When machining different models... When using motor frames with different inner hole sizes, it is necessary to replace the spindle with one of the corresponding outer diameter, which increases the storage cost of spare parts. The rigid connection between the integral flat cover and the cylinder piston rod means that the pressing action of the cover lacks angular compensation capability. In actual production, due to the influence of the frame injection molding process, some frame end faces will have flatness errors. In this case, when the cylinder drives the cover to press the frame, the pressure will be concentrated on a local area of ​​the frame end face, causing excessive local pressure. Since motor frames are mostly made of brittle materials such as plastic, excessive local pressure can easily cause frame breakage, deformation and other damage problems. Utility Model Content

[0004] The purpose of this invention is to provide a frame positioning device for small motor processing, which has the advantages of adjustable positioning, floating compensation for clamping deviation, and reduced damage during clamping. It solves the problems of easy wear of cylindrical mandrels, single fixed positioning, and excessive local pressure on the frame caused by rigid clamping in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A frame positioning device for small motor processing includes a bearing assembly, which includes a bearing plate. A positioning assembly is mounted on the upper end of the bearing plate. The positioning assembly includes a rotating seat rotatably mounted on the inner wall of the center of the bearing plate. The lower inner wall of the rotating seat has symmetrically distributed sliding grooves. A double-threaded screw is also rotatably mounted on the inner wall of the rotating seat. The positioning assembly also includes symmetrical sliders threaded onto the outer wall of the double-threaded screw. The sliders are slidably mounted in the sliding grooves, and the internal threads of the sliders have opposite directions. The positioning assembly also includes a positioning frame fixed to the upper end of the slider. A soft pad is fixed to the opposite ends of the positioning frames. A slot is opened at the center of the upper end of each positioning frame. A support screw is provided on the inner wall of the slot. Symmetrical nuts are threaded onto the outer wall of the support screw. The opposite ends of the nuts are attached to the opposite ends of the positioning frames.

[0006] Preferably, the bearing assembly further includes a base fixed to the lower end of the bearing disk, and several support blocks are fixed to the upper edge of the bearing disk at equal intervals, with the upper ends of the support blocks being flush with the upper end of the rotating seat.

[0007] It is worth noting that: the base provides a stable installation foundation for the carrier plate, and the support blocks that are equidistantly arranged around the upper end of the carrier plate are flush with the upper end of the rotating seat. They can provide auxiliary support for the motor frame from all sides, distributing the force on the frame. The surrounding distribution of the support blocks is adapted to frames of different sizes. With the adjustable structure of the positioning components, the problem of single fixed positioning is effectively solved.

[0008] Preferably, the upper end of the support block is provided with equally spaced slots, the inner wall of the slots is provided with limiting pins, and the bearing component also includes V-shaped guide plates fixed to the upper edge of the support block and symmetrically distributed.

[0009] It is worth noting that the V-shaped guide plate can guide the motor frame to be accurately placed in the positioning area, avoiding placement deviation. The limit pin can be inserted into the slots at different positions of the support block to flexibly adjust the limit range and adapt to frames of different diameters, further enhancing the positioning adjustability. At the same time, the limiting function of the limit pin prevents the frame from shaking during processing.

[0010] Preferably, the outer wall of the bearing plate is also equipped with a clamping assembly, which includes a clamping seat fixed to the outer wall of the bearing plate, an electric cylinder fixed to the inner wall of the center of the left and right ends of the clamping seat, and a clamping plate installed at the output end of the electric cylinder.

[0011] It is worth noting that: the clamping seat provides a stable mounting reference for the electric cylinder, and the electric cylinder drives the clamping plate to clamp the skeleton from the left and right directions, forming a multi-directional fixation with the positioning frame of the positioning component, thereby improving positioning stability; the extension stroke of the electric cylinder is adjustable, and in conjunction with the adjustable design of the positioning component, it can adapt to skeletons of different specifications.

[0012] Preferably, the clamping assembly also includes a ball head fixed to the output end of the electric cylinder, the outer wall of the ball head is fitted with a ball cup, and the ends of the ball cups that are close to each other are fixed with a clamping plate.

[0013] It is worth noting that the ball head and the ball cup form a universal rotating structure, which allows the clamping plate to adapt to the surface curvature or slight tilt of the motor frame, floating to compensate for clamping deviation, avoiding the fixed clamping angle caused by rigid connection, effectively dispersing clamping force and protecting the frame from damage.

[0014] Preferably, the clamping assembly further includes a second soft pad fixed to one end of the clamping plates that are close to each other, with the clamping plates located on the left and right sides of the positioning frame.

[0015] It is worth noting that the soft pads on the inner wall of the clamping plate and the soft pads on the positioning frame form a double buffer structure, which can buffer the clamping impact, reduce local pressure on the skeleton, and prevent scratches or damage during clamping. At the same time, the soft pads can increase the friction with the skeleton and improve the clamping firmness.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention provides a stable mounting platform for the positioning components using a support plate. A rotating seat, rotatably mounted on the inner wall of the rotating seat, can adapt to angle adjustment requirements during frame processing. A groove at the lower end of the rotating seat provides a directional sliding track for the slider. A double-threaded screw, rotatably mounted on the inner wall, engages with the slider's threads, with the slider's internal threads rotating in opposite directions. Rotating the double-threaded screw drives the two sliders to move synchronously relative to or away from each other, achieving adjustable positioning spacing. The positioning frame at the upper end of the slider directly fits against and supports the motor frame. A soft pad on its outer wall buffers clamping pressure, reducing localized pressure damage to the frame. A slot at the upper end of the positioning frame provides mounting support for the support screw. Symmetrical nuts lock the positioning frame in place, ensuring stable positioning. Attached Figure Description

[0017] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 3 This is a three-dimensional structural breakdown diagram of the load-bearing component of this utility model; Figure 4 This is a three-dimensional structural disassembly diagram of the positioning component of this utility model; Figure 5 This is a three-dimensional structural disassembly diagram of the clamping component of this utility model.

[0018] Reference numerals in the attached drawings: 101, base; 102, bearing plate; 103, support block; 104, slot; 105, guide plate; 106, limit pin; 201, rotating seat; 202, slide groove; 203, double-threaded screw; 204, slider; 205, positioning frame; 206, soft pad one; 207, slot; 208, support screw; 209, nut; 301, clamping seat; 302, electric cylinder; 303, ball head; 304, ball cup; 305, clamping plate; 306, soft pad two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To address the problems of easy wear of cylindrical mandrels, limited fixed positioning, and excessive local pressure on the skeleton caused by rigid clamping in existing technologies, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-5 ; A frame positioning device for small motor processing includes a bearing assembly, which includes a bearing plate 102. A positioning component is mounted on the upper end of the bearing plate 102. The positioning component includes a rotating seat 201 rotatably mounted on the inner wall of the center of the bearing plate 102. The lower inner wall of the rotating seat 201 has symmetrically distributed sliding grooves 202. A double-threaded screw 203 is also rotatably mounted on the inner wall of the rotating seat 201. The positioning component also includes symmetrically threaded sliders 204 threaded onto the outer wall of the double-threaded screw 203. The sliders 204 slide... The slider 204 is installed in the slide groove 202. The internal threads of the slider 204 are rotated in opposite directions. The positioning assembly also includes a positioning frame 205 fixed to the upper end of the slider 204. The ends of the positioning frames 205 that are far apart from each other are fixed with soft pads 206. The upper center of the positioning frame 205 is provided with a slot 207. The inner wall of the slot 207 is provided with a support screw 208. The outer wall of the support screw 208 is threaded with symmetrical nuts 209. The ends of the nuts 209 that are far apart from each other are attached to the ends of the positioning frames 205 that are close to each other.

[0021] The support plate 102 provides a stable mounting platform for the positioning components. The rotating seat 201, which is rotatably mounted on the inner wall of the center, can adapt to the angle adjustment requirements during frame processing. The slide groove 202 at the lower end of the rotating seat 201 provides a directional sliding track for the slider 204. The double-threaded screw 203, which is rotatably mounted on the inner wall, is threadedly engaged with the slider 204. The internal threads of the slider 204 turn in opposite directions. Rotating the double-threaded screw 203 can drive the two sliders 204 to move synchronously relative to each other or in opposite directions, so as to achieve adjustable positioning distance. The positioning frame 205 at the upper end of the slider 204 is used to directly fit and support the motor frame. The soft pad 206 on its outer wall can buffer the clamping pressure and reduce local pressure damage to the frame. The slot 207 at the upper end of the positioning frame 205 provides installation support for the support screw 208. With the help of symmetrical nuts 209, the adjustment position of the positioning frame 205 can be locked to ensure stable positioning.

[0022] Please see Figure 3 The supporting component also includes a base 101 fixed to the lower end of the supporting plate 102. Several support blocks 103 are fixed to the upper edge of the supporting plate 102 at equal intervals. The upper end of the support blocks 103 is flush with the upper end of the rotating seat 201. The base 101 provides a stable mounting foundation for the supporting plate 102. The support blocks 103 at equal intervals around the upper end of the supporting plate 102 are flush with the upper end of the rotating seat 201, which can assist in supporting the motor frame from all sides and distribute the force on the frame. The surrounding distribution of the support blocks 103 is adapted to frames of different sizes. With the adjustable structure of the positioning component, the problem of single fixed positioning is effectively solved.

[0023] The upper end of the support block 103 is provided with equally spaced slots 104, and the inner wall of the slots 104 is provided with limiting pins 106. The bearing component also includes V-shaped guide plates 105 that are fixed to the upper edge of the support block 103 and are symmetrically distributed. The V-shaped guide plates 105 can guide the motor frame to be accurately placed in the positioning area to avoid placement deviation. The limiting pins 106 can be inserted into the slots 104 at different positions of the support block 103 to flexibly adjust the limiting range and adapt to frames of different diameters, further enhancing the positioning adjustability. At the same time, the limiting function of the limiting pins 106 prevents the frame from shaking during processing.

[0024] Please see Figure 5 The outer wall of the support plate 102 is also equipped with a clamping assembly, which includes a clamping seat 301 fixed to the outer wall of the support plate 102. Electric cylinders 302 are fixed to the inner walls of the center of the left and right ends of the clamping seat 301. A clamping plate 305 is installed at the output end of the electric cylinder 302. The clamping seat 301 provides a stable mounting reference for the electric cylinder 302. The electric cylinder 302 drives the clamping plate 305 to clamp the skeleton from the left and right directions, forming a multi-directional fixation with the positioning frame 205 of the positioning assembly, thereby improving the positioning stability. The extension stroke of the electric cylinder 302 is adjustable, which, together with the adjustable design of the positioning assembly, can adapt to skeletons of different specifications.

[0025] The clamping assembly also includes a ball head 303 fixed to the output end of the electric cylinder 302. The outer wall of the ball head 303 is fitted with a ball cup 304. The end of the ball cup 304 that is close to each other is fixed with a clamping plate 305. The ball head 303 and the ball cup 304 form a universal rotation structure, which allows the clamping plate 305 to adapt to the surface curvature or slight tilt of the motor frame, float to compensate for clamping deviation, avoid the fixed clamping angle caused by rigid connection, effectively disperse the clamping force, and protect the frame from damage.

[0026] The clamping assembly also includes a second soft pad 306 fixed to one end of the clamping plate 305 that is close to each other. The clamping plate 305 is located on the left and right sides of the positioning frame 205. The second soft pad 306 on the inner wall of the clamping plate 305 and the first soft pad 206 of the positioning frame 205 form a double buffer structure, which can buffer the clamping impact force, reduce the local pressure on the skeleton, and avoid scratches or damage during clamping. At the same time, the second soft pad 306 can increase the friction with the skeleton and improve the clamping firmness.

[0027] Working principle: Before processing, according to the specifications of the motor frame, rotate the double-threaded screw 203. Because the slider 204 and the double-threaded screw 203 are threadedly matched and the internal threads rotate in opposite directions, the slider 204 moves synchronously relative to or opposite to each other along the slide groove 202, driving the positioning frame 205 to adjust the fitting distance. Insert the limit pin 106 into the corresponding slot 104 of the support block 103 to determine the limit range. At the same time, control the electric cylinder 302 to retract, so that the clamping plate 305 opens to reserve the placement space. Place the frame to be processed above the bearing component and guide it through the V-shaped guide plate 105 at the upper end of the support block 103 to accurately position it to the designated area and avoid deviation. After the frame is placed, the support block 103 is flush with the upper end of the rotating seat 201, providing auxiliary support from all sides and distributing the force on the frame.

[0028] Then, fine-tune the double-threaded screw 203 to make the positioning frame 205 fit against the outer wall of the skeleton. The soft pad 206 on the positioning frame 205 buffers the clamping pressure. Using the support screw 208 in the slot 207 at the upper end of the positioning frame 205, tighten the symmetrical nuts 209 so that the nuts 209 fit against the positioning frame 205, lock and adjust the position to prevent radial displacement of the skeleton. Start the electric cylinder 302 on the clamping seat 301. The electric cylinder 302 pushes the ball head 303 at the output end to move. The ball head 303 and the ball cup 304 form a universal rotation structure, so that the clamping plate 305 adapts to the curvature or slight tilt of the skeleton surface to compensate for clamping deviation. Until the soft pad 306 on the inner wall of the clamping plate 305 fits tightly against the left and right sides of the skeleton, it forms a multi-directional fixation with the positioning frame 205. The soft pad 206 and the soft pad 306 provide double buffering to avoid damage to the skeleton, while increasing friction to improve stability.

[0029] When the angle needs to be adjusted during processing, the rotating seat 201 at the center of the bearing plate 102 can be directly rotated to adapt to different processing positions. The limiting pin 106 on the support block 103 restricts the circumferential sway of the skeleton to ensure that the processing is stable and without displacement. After processing, first control the electric cylinder 302 to retract, drive the clamping plate 305 to open, and release the left and right clamping forces. Then loosen the nut 209 and rotate the double threaded screw 203 in the opposite direction to separate the positioning frame 205 and release the positioning constraint. Finally, take out the skeleton to complete the processing process.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A frame positioning device for small motor processing, comprising a load-bearing component, characterized in that, The support assembly includes a support plate (102), and a positioning assembly is installed on the upper end of the support plate (102). The positioning assembly includes a rotating seat (201) rotatably mounted on the inner wall of the center of the support plate (102). The lower inner wall of the rotating seat (201) is provided with symmetrically distributed slide grooves (202). A double-threaded screw (203) is also rotatably mounted on the inner wall of the rotating seat (201). The positioning assembly also includes a slider (204) threaded onto the outer wall of the double-threaded screw (203) and symmetrically mounted. The slider (204) is slidably mounted in the slide groove (202). The internal threads of the slider (204) are rotated in opposite directions. The positioning assembly also includes a positioning frame (205) fixed to the upper end of the slider (204). The ends of the positioning frames (205) that are far apart from each other are fixed with a soft pad (206). The upper center of the positioning frame (205) is provided with a slot (207). The inner wall of the slot (207) is provided with a support screw (208). The outer wall of the support screw (208) is threaded with symmetrical nuts (209). The ends of the nuts (209) that are far apart from each other are attached to the ends of the positioning frames (205) that are close to each other.

2. The frame positioning device for small motor processing according to claim 1, characterized in that, The support assembly also includes a base (101) fixed to the lower end of the support plate (102), and several support blocks (103) are fixed to the upper edge of the support plate (102) at equal intervals. The upper end of the support block (103) is flush with the upper end of the rotating seat (201).

3. The frame positioning device for small motor processing according to claim 2, characterized in that, The upper end of the support block (103) is provided with equally spaced slots (104), and the inner wall of the slots (104) is provided with limiting pins (106). The bearing assembly also includes V-shaped guide plates (105) that are fixed to the upper edge of the support block (103) and symmetrically distributed.

4. The frame positioning device for small motor processing according to claim 1, characterized in that, The outer wall of the bearing plate (102) is also equipped with a clamping assembly, which includes a clamping seat (301) fixed to the outer wall of the bearing plate (102). Electric cylinders (302) are fixed to the inner walls of the center of the left and right ends of the clamping seat (301), and clamping plates (305) are installed at the output end of the electric cylinder (302).

5. The frame positioning device for small motor processing according to claim 4, characterized in that, The clamping assembly also includes a ball head (303) fixed to the output end of the electric cylinder (302). The outer wall of the ball head (303) is fitted with a ball cup (304), and a clamping plate (305) is fixed to one end of the ball cup (304) that is close to each other.

6. The frame positioning device for small motor processing according to claim 5, characterized in that, The clamping assembly also includes a second soft pad (306) fixed to one end of the clamping plate (305) that is close to each other, the clamping plate (305) being located on the left and right sides of the positioning frame (205).

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