A cylindrical grinding device for motor shaft machining
Through innovative design of clamping and adjusting components, the motor shaft external cylindrical grinding device has achieved versatility and high-efficiency production, solving the problem that existing devices require changing clamps for specific motor shafts, thereby improving production efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING QIJIANG DISTRICT HUAFENG TRANSMISSION CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-10
AI Technical Summary
Existing external cylindrical grinding equipment for motor shaft machining lacks versatility, requiring the replacement of fixtures for motor shafts of different diameters and lengths, resulting in high equipment procurement costs, cumbersome replacement processes, and low production efficiency.
The design employs a clamping assembly and an adjustment assembly. The clamping assembly achieves synchronous clamping through a drive cylinder and gear rack transmission, while the adjustment assembly achieves position adjustment through a double-headed cylinder and guide block to adapt to motor shafts of different diameters and lengths.
It improves the versatility and production efficiency of the equipment, reduces equipment procurement and maintenance costs, and simplifies the fixture replacement process.
Smart Images
Figure CN224475956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of motor shaft processing equipment, and in particular to an external cylindrical grinding device for motor shaft processing. Background Technology
[0002] In the field of motor manufacturing and related machining, the motor shaft is a key component of the motor, and its machining quality directly affects the performance and reliability of the motor. The outer diameter of the motor shaft requires high machining accuracy, and an outer diameter grinding device for motor shaft machining is needed to grind the outer diameter of the motor shaft.
[0003] The existing external cylindrical grinding equipment for machining motor shafts often uses fixtures designed for motor shafts of a specific diameter, lacking versatility. When machining motor shafts of different diameters and lengths, it is necessary to change the corresponding fixtures. This not only increases the equipment procurement cost, as companies need to keep a variety of fixtures in stock, but also makes the fixture replacement process cumbersome, consuming a lot of time and manpower, resulting in low production efficiency. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an external cylindrical grinding device for machining motor shafts, which has the advantage of high versatility and solves the problem that the fixtures of existing external cylindrical grinding devices for machining motor shafts are often designed for motor shafts of a specific diameter and lack versatility.
[0005] This utility model provides the following technical solution: an external cylindrical grinding device for machining motor shafts, comprising a machining platform, a grinding wheel frame, and a grinding device. A clamping assembly is provided on the top surface of the machining platform, and an adjusting assembly is provided on the bottom surface of the machining platform. The clamping assembly includes a mounting box. Each mounting box has a sliding groove on its top surface. Connecting rods are arranged opposite each other inside the mounting box. Clamping blocks are fixedly connected to the opposite surfaces of each pair of connecting rods. T-slots are provided inside the mounting box. First toothed racks are fixedly connected to the bottom surfaces of each connecting rod. The inner walls of the mounting box are... Symmetrically connected to the drive gears via connecting shafts, each mounting box contains a drive rod, with second racks fixedly connected to both sides of the drive rods, and guide rods fixedly connected to the bottom sidewalls of the drive rods. A drive cylinder is fixedly connected to the bottom surface of the processing platform, and the output shaft of the drive cylinder is fixedly connected to a connecting block via a coupling. During clamping, the drive cylinder drives the drive rods downward, and the second racks on both sides of the drive rods simultaneously mesh with the drive gears. The drive gears then transmit power to the first racks, allowing the clamping blocks on each pair of connecting rods to synchronously approach the motor shaft.
[0006] Preferably, the grinding wheel frame is fixedly connected to the top surface of the processing platform, and a grinding device is provided on the surface of the grinding wheel frame. The mounting box is disposed opposite to the top surface of the processing platform. The connecting rods are all slidably connected inside the slide groove, and the first rack is all slidably connected inside the T-slot. The driving cylinder serves as a power source, and the synchronous clamping method of driving the clamping blocks avoids uneven force on the motor shaft caused by asynchronous movement of the clamping blocks during the clamping process, thereby effectively preventing the motor shaft from tilting or shaking during the clamping process.
[0007] Preferably, the drive gear meshes with the first rack and the second rack, the drive rod is slidably connected inside the mounting box, the guide rods are arranged opposite to each other, and the guide rods are slidably connected inside the connecting block. Through the setting of the clamping assembly, the device can stably clamp the motor shaft, providing a good foundation for subsequent grinding and ensuring that the motor shaft always maintains the correct position during the processing.
[0008] Preferably, the adjustment component includes a fixing groove on the top surface of the processing platform, a guide groove on the top surface of the processing platform, guide blocks on the bottom surface of the mounting box, and double-headed cylinders fixedly connected to the bottom two surfaces of the processing platform. The adjustment component of this device can flexibly adjust the position of the clamping component through the double-headed cylinders. Whether it is a shorter or longer motor shaft, the position of the clamping component can be adjusted to ensure that both ends are effectively clamped and fixed, thus meeting the processing requirements of motor shafts of different lengths.
[0009] Preferably, the drive rods are all slidably connected inside the fixed groove, and the guide blocks are all slidably connected inside the guide groove. When the output shaft of the double-headed cylinder extends or retracts, it will drive the guide blocks to slide in the guide groove, thereby causing the mounting box to move on the processing platform. Since the mounting box is connected to the clamping assembly, the movement of the mounting box will drive the change of the position of the entire clamping assembly.
[0010] Preferably, the output shafts of the double-headed cylinders are all fixedly connected to the guide block on the side surface near the double-headed cylinder via couplings. The adjustment component enables the device to adapt to the processing of motor shafts of various specifications, further enhancing the versatility of the equipment and improving production efficiency.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. By setting up the clamping components, the drive cylinder serves as the power source, and the gear and rack transmission method enables the two clamping blocks to approach each other synchronously and smoothly. This allows the clamping blocks to adjust the clamping distance according to the actual size of the motor shaft, regardless of its diameter, achieving stable clamping and centering. This avoids the cumbersome and costly process of customizing clamps for motor shafts of different diameters, greatly improving the applicability and versatility of the equipment, reducing the cost of equipment procurement and maintenance for enterprises, and improving production efficiency.
[0013] 2. By adjusting the component settings, when the output shaft of the double-headed cylinder extends or retracts, it will drive the guide block to slide in the guide groove, thereby moving the mounting box on the processing platform. Since the mounting box is connected to the clamping component, the movement of the mounting box will drive the change of the position of the entire clamping component. In this way, whether it is a shorter or longer motor shaft, both ends can be effectively clamped and fixed by adjusting the position of the clamping component, meeting the processing needs of motor shafts of different lengths. This flexible adjustment method enables the device to adapt to the processing of motor shafts of various specifications, further enhancing the versatility of the equipment and improving production efficiency. Attached Figure Description
[0014] Figure 1 This is a front view of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the adjustment component in the structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the driving cylinder in the structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the clamping component in the structure of this utility model.
[0018] In the diagram: 1. Machining platform; 2. Grinding wheel frame; 4. Clamping assembly; 41. Mounting box; 42. Slide groove; 43. Connecting rod; 44. Clamping block; 45. T-slot; 46. First rack; 47. Drive gear; 48. Drive rod; 49. Second rack; 411. Guide rod; 412. Drive cylinder; 413. Connecting block; 5. Adjustment assembly; 51. Fixing groove; 52. Guide groove; 53. Guide block; 54. Double-headed cylinder. 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] Please see Figures 1-4This utility model provides an embodiment of an external cylindrical grinding device for machining motor shafts, comprising a machining platform 1, a grinding wheel frame 2, and a grinding device. The grinding device is a mature existing technology and will not be described in detail here. A clamping assembly 4 is provided on the top surface of the machining platform 1, and an adjusting assembly 5 is provided on the bottom surface of the machining platform 1. The clamping assembly 4 includes a mounting box 41, and each mounting box 41 has a sliding groove 42 on its top surface. Each mounting box 41 has a connecting rod 43 arranged opposite to each other inside. Each pair of connecting rods 43 has a clamping block 44 fixedly connected to its opposite surface. Each mounting box 41 has a T-slot 45 inside, and the bottom surface of each connecting rod 43 is fixed. A first rack 46 is connected to the inner wall of the mounting box 41, and drive gears 47 are symmetrically connected to each other via connecting shafts. Each mounting box 41 has a drive rod 48 inside, and a second rack 49 is fixedly connected to both sides of the drive rod 48. Guide rods 411 are fixedly connected to the bottom side wall of the drive rod 48. A drive cylinder 412 is fixedly connected to the bottom surface of the processing platform 1. The output shaft of the drive cylinder 412 is fixedly connected to a connecting block 413 via a coupling. The connecting block 413 has a sliding channel inside that matches the guide rod 411. A grinding wheel frame 2 is fixedly connected to the top surface of the processing platform 1, and a grinding device is located at the bottom of the grinding wheel frame 2. On the surface of the part, the mounting box 41 is positioned opposite to the top surface of the processing platform 1. The connecting rods 43 are all slidably connected inside the slide groove 42, and the first rack 46 is all slidably connected inside the T-slot 45. The drive gear 47 meshes with the first rack 46 and the second rack 49. The drive rod 48 is slidably connected through the mounting box 41. Two guide rods 411 are positioned opposite to each other and are all slidably connected inside the connecting block 413. When processing the motor shaft, the motor shaft to be processed is placed between two clamping blocks 44, and then the drive cylinder 412 is activated. The drive cylinder 412 drives the connecting block 413 to move downward. The downward movement of the connecting block 413 drives the drive rod 48 downward via the guide rod 411. The movement of the drive rod 48 drives the second rack 49 to move downward synchronously, driving the drive gear 47 to rotate. The rotation of the drive gear 47 causes the first rack 46 to slide closer to each other inside the T-slot 45, thereby driving the clamping blocks 44 to move closer to each other via the connecting rod 43. The clamping blocks 44 gradually approach and finally clamp the motor shaft, thus achieving stable clamping of the motor shaft. The drive cylinder 412 drives the clamping blocks 44 to move synchronously, thereby centering the motor shaft to be processed. At the same time, it can also clamp motor shafts of different diameters.
[0021] Please see Figures 1-4The adjusting component 5 includes a fixing groove 51 on the top surface of the processing platform 1, a guide groove 52 on the top surface of the processing platform 1, guide blocks 53 on the bottom surface of the mounting box 41, and double-headed cylinders 54 fixedly connected to the bottom surfaces of the processing platform 1. Drive rods 48 are slidably connected inside the fixing groove 51, and guide blocks 53 are slidably connected inside the guide groove 52. The output shafts of the double-headed cylinders 54 are fixedly connected to the guide blocks 53 on the side surface of the guide blocks 53 closest to the double-headed cylinders 54 via couplings. When the position of the clamping component 4 needs to be adjusted to accommodate the processing requirements of motor shafts of different lengths, the double-headed cylinders 54 are activated. When the output shaft of the double-headed cylinder 54 extends or retracts, it drives the guide block 53 to slide in the guide groove 52 opened opposite to each other on the top surface of the processing platform 1. When the guide block 53 moves, it drives the mounting box 41 to move on the top surface of the processing platform 1. When the mounting box 41 moves, the guide rod 411 also moves synchronously. The movement of the mounting box 41 drives the clamping assembly 4 to adjust its position. After the position of the clamping assembly 4 is adjusted according to the requirements of motor shafts of different lengths, the motor shaft to be processed is placed between the two clamping blocks 44, and the drive cylinder 412 is started to clamp the motor shaft to be processed, thereby meeting the processing requirements of motor shafts of different lengths.
[0022] Working principle: When machining the motor shaft, the motor shaft to be machined is placed between two clamping blocks 44. Then, the drive cylinder 412 is activated. The drive cylinder 412 drives the connecting block 413 to move linearly downward through the coupling, thereby driving the drive rod 48 downward through the guide rod 411. The movement of the drive rod 48 drives the second rack 49 to move downward synchronously. Since the second rack 49 meshes with the drive gear 47, it drives the drive gear 47 to rotate. Since the first rack 46 meshes with the drive gear 47... The first rack 46 slides closer together inside the T-slot 45, which in turn drives the clamping blocks 44 to move closer together via the connecting rod 43. The clamping blocks 44 gradually approach and eventually clamp the motor shaft, thus achieving stable clamping of the motor shaft. This allows for clamping motor shafts of different diameters, improving the versatility of the device. When the position of the clamping assembly 4 needs to be adjusted to meet the processing requirements of motor shafts of different lengths, the double-headed cylinder 54 is activated. When the output shaft of the double-headed cylinder 54 extends or retracts, it drives the guide... Block 53 slides within the guide groove 52 on the top surface of the processing platform 1. Since the guide block 53 is fixedly connected to the bottom surface of the mounting box 41 and the drive rod 48 is slidably connected to the fixed groove 51 on the top surface of the processing platform 1, when the guide block 53 moves, it will drive the mounting box 41 to move on the top surface of the processing platform 1. At the same time, since the connecting block 413 has a sliding channel that matches the guide rod 411 inside, and the two guide rods 411 are arranged opposite to each other, the guide rods 411 also move synchronously when the mounting box 41 moves. The movement of the mounting box 41 will further drive the clamping assembly 4 to adjust its position. After the position of the clamping assembly 4 is adjusted, the motor shaft to be processed is placed between the two clamping blocks 44, and the drive cylinder 412 is started to clamp the motor shaft to be processed, thereby meeting the processing requirements of motor shafts of different lengths and improving the versatility of the device. The grinding device on the surface of the grinding wheel frame 2 starts to work. The grinding device contacts and rubs the outer circle surface of the motor shaft, thereby realizing the grinding processing of the outer circle of the motor shaft.
Claims
1. An external cylindrical grinding device for machining motor shafts, comprising a machining platform (1), a grinding wheel frame (2), and a grinding device, characterized in that: The processing platform (1) has a clamping component (4) on its top surface and an adjustment component (5) on its bottom surface. The clamping assembly (4) includes a mounting box (41), the top surface of the mounting box (41) is provided with a sliding groove (42), the inside of the mounting box (41) is provided with connecting rods (43) respectively, the opposite surfaces of the two connecting rods (43) are fixedly connected with clamping blocks (44), the inside of the mounting box (41) is provided with a T-slot (45), the bottom surface of the connecting rods (43) is fixedly connected with a first rack (46), the inner walls of the mounting box (41) are symmetrically connected to each other by a connecting shaft and a drive gear (47), the inside of the mounting box (41) is provided with a drive rod (48), the two sides of the drive rod (48) are fixedly connected with a second rack (49), the bottom side wall surface of the drive rod (48) is fixedly connected with a guide rod (411), the bottom surface of the processing platform (1) is fixedly connected with a drive cylinder (412), and the output shaft of the drive cylinder (412) is fixedly connected to a connecting block (413) through a coupling.
2. The external cylindrical grinding device for machining motor shafts according to claim 1, characterized in that: The adjustment component (5) includes a fixing groove (51) on the top surface of the processing platform (1), a guide groove (52) on the top surface of the processing platform (1), guide blocks (53) on the bottom surface of the mounting box (41), and double-headed cylinders (54) fixedly connected to the bottom two sides of the processing platform (1).
3. The external cylindrical grinding device for machining motor shafts according to claim 1, characterized in that: The grinding wheel frame (2) is fixedly connected to the top surface of the processing platform (1). The grinding wheel frame (2) is provided with a grinding device. The mounting box (41) is disposed opposite to the top surface of the processing platform (1). The connecting rods (43) are all slidably connected inside the slide groove (42). The first rack (46) is all slidably connected inside the T-slot (45).
4. The external cylindrical grinding device for machining motor shafts according to claim 1, characterized in that: The drive gear (47) meshes with the first rack (46) and the second rack (49). The drive rod (48) is slidably connected inside the mounting box (41). The guide rods (411) are arranged opposite to each other and are slidably connected inside the connecting block (413).
5. The external cylindrical grinding device for machining motor shafts according to claim 2, characterized in that: The drive rods (48) are all slidably connected inside the fixed groove (51), and the guide blocks (53) are all slidably connected inside the guide groove (52).
6. The external cylindrical grinding device for machining motor shafts according to claim 2, characterized in that: The output shafts of the dual-head cylinders (54) are all fixedly connected to the guide block (53) on the side surface near the dual-head cylinders (54) via couplings.