Positioning and correcting mechanism for drilling of end cover parts
By designing a positioning and correction mechanism that includes a base, an abutment block, and a pressing block, the problem of offset and positioning during the drilling process of motor end caps was solved, and stable positioning and high-precision drilling of end caps of different sizes were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG XURAN MACHINERY
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-17
AI Technical Summary
In the existing technology, the end caps are prone to shifting during the drilling process of motor end caps, and it is difficult to effectively position end caps of different sizes, resulting in insufficient drilling accuracy.
A positioning and correction mechanism including a base, abutment block, extrusion block, drive shaft and cylinder drive is designed. The cylinder drives the drive shaft to drive the connecting rod and drive plate. The abutment block and extrusion block are used to position the end cap at four points to ensure that the end cap does not shift during the drilling process.
It achieves stable positioning of end caps of different sizes, improves drilling accuracy, avoids deviation during the drilling process, and ensures the accuracy requirements of motor end cap processing.
Smart Images
Figure CN224129136U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses a positioning and correction mechanism for drilling end cap parts, which relates to the field of end cap processing technology. Background Technology
[0002] Drilling motor end caps is a crucial step in motor manufacturing, typically used to machine various functional holes such as bearing housing holes, ventilation holes, cable entry holes, and mounting holes. This process demands high precision, involving accurate positioning of multiple holes and strict control of hole diameters. Precise drilling is essential for motor performance, stability, and lifespan. Accurate positioning and stable clamping are crucial for drilling accuracy. The most common motor end cap shapes are typically used in standard motors, including some single-phase and three-phase motors. Regardless of the shape, motor end caps usually feature bearing housing holes, ventilation / heat dissipation holes, cable entry holes, and mounting holes. To ensure the end cap does not shift during machining, specialized fixtures are typically used for fixation.
[0003] During the production and processing of end caps, it is necessary to drill holes in the motor end caps. Currently, most end cap drilling is done by using bolts and pressure plates to press the end caps together to fix them in place. However, drilling the end caps generates a lot of pressure, which may cause the end caps to shift. In addition, positioning end caps of different sizes during processing is quite troublesome. Therefore, it is necessary to provide a positioning and correction mechanism for drilling end caps to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning and correction mechanism for drilling end cap parts, so as to improve the drilling accuracy by performing secondary anti-deviation on end caps of different sizes during drilling.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning and correction mechanism for drilling end cap parts, comprising a base, characterized in that: an abutment block is slidably mounted on the base, and pressing blocks are slidably mounted on both ends of the abutment block; a transmission shaft is slidably mounted at the central shaft of the base; a padding block is mounted above the transmission shaft; a connecting seat is mounted below the transmission shaft; a connecting rod is rotatably connected to the connecting seat; a transmission plate is slidably mounted on the connecting rod; the transmission plate is fixedly connected to the abutment block; and the transmission shaft is driven by a cylinder.
[0006] Preferably, a thread is provided above the drive shaft, and a nut is engaged on the thread, with the nut installed above the pressure block.
[0007] Preferably, the shape of the contact block is a quarter-circle arc, and the shape of the extrusion block is consistent with the shape of the contact block.
[0008] Preferably, a spring is installed at the tail end of the extrusion block, and the spring is fixedly connected to the inside of the abutment block.
[0009] Preferably, a spring seat is installed at the central axis of the base. The spring seat is in the shape of a ring and contains several sets of springs, which are fixedly connected to the base.
[0010] Preferably, the upper end of the extrusion block is a slope.
[0011] Preferably, there are four sets of abutment blocks, four sets of transmission plates, and four sets of connecting rods.
[0012] Preferably, the base is provided with four sets of sliding grooves, the transmission plate slides in the sliding grooves, and the sliding grooves are provided with slide rails, which limit the movement range of the transmission plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The operator first aligns the center circle of the disc cover with the transmission shaft and places it on the base. Then, the cylinder drives the transmission shaft to move downward, causing the connecting seat to move downward. The connecting rod, which is rotated and installed on the connecting seat, rotates inward and approaches. The connecting rod pulls the transmission plate towards the center shaft of the base until the inner wall of the contact block contacts the outer wall of the disc cover part. The pad block installed on the transmission shaft can move with the downward movement of the transmission shaft. Its bottom surface contacts the upper surface of the disc cover part and presses it downward. The pressing block is set because there is generally a bearing seat hole on the outer side of the motor disc cover part. When the disc cover part is placed between the two sets of pressing blocks, it can be positioned. There are four sets of contact blocks, transmission plates, and connecting rods, and the movement distance and movement state are exactly the same. During operation, the simultaneous movement of the four sets can play a role in centering and positioning disc cover parts of different sizes, and there will be no deviation during drilling. Attached Figure Description
[0014] Figure 1 A schematic diagram of a positioning and correction mechanism for drilling holes in end cap-type parts;
[0015] Figure 2 for Figure 1 A bottom view schematic diagram of a positioning and correction mechanism for drilling holes in an end cap type part;
[0016] The following are the labeling elements in the figure:
[0017] 1. Base; 11. Slide groove; 2. Abutting block; 3. Pressing block; 4. Spring seat; 5. Drive shaft; 51. Pad block; 52. Nut; 6. Connecting seat; 7. Connecting rod; 8. Transmission plate. Detailed Implementation
[0018] 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.
[0019] Specific implementation examples:
[0020] like Figures 1-2 As shown, a positioning and correction mechanism for drilling end cap parts includes a base 1, an abutment block 2 slidably mounted on the base 1, pressing blocks 3 slidably mounted at both ends of the abutment block 2, a drive shaft 5 slidably mounted at the central axis of the base 1, a pad block 51 mounted above the drive shaft 5, a connecting seat 6 mounted below the drive shaft 5, a connecting rod 7 rotatably connected to the connecting seat 6, a drive plate 8 slidably mounted on the connecting rod 7, the drive plate 8 being fixedly connected to the abutment block 2, and the drive shaft 5 being driven by a cylinder.
[0021] In actual operation, the operator first aligns the center circle of the disc cover with the drive shaft 5 and places it on the base 1. Then the cylinder drives the drive shaft 5 to move downward, which in turn drives the connecting seat 6 to move downward. The connecting rod 7, which is mounted on the connecting seat 6, rotates inward and moves closer. The connecting rod 7 pulls the drive plate 8 closer to the center axis of the base 1 until the inner wall of the contact block 2 contacts the outer wall of the disc cover part. The pad block 51, which is mounted on the drive shaft 5, can move with the downward movement of the drive shaft 5. Its bottom surface contacts the upper surface of the disc cover part and presses it downward.
[0022] The extrusion block 3 is provided because there are usually bearing seat holes on the outer side of the motor cover part. When the cover part is placed between the two sets of extrusion blocks 3, it can be positioned.
[0023] The drive shaft 5 is provided with a thread (not shown in the figure), and a nut 52 is engaged with the thread. The nut 52 is installed above the pad block 51.
[0024] The threaded setting allows the operator to manually adjust the position of nut 52 to adjust the clamping force when the mechanism is not fully tightened;
[0025] The shape of the contact block 2 is a quarter-circle arc, and the shape of the compression block 3 is the same as that of the contact block 2.
[0026] The arc-shaped design of the contact block 2 and the squeezing block 3 allows them to conform to the external shape of the disc cover part during clamping, thus achieving better clamping and holding.
[0027] A spring (not shown in the figure) is installed at the tail end of the extrusion block 3, and the spring is fixedly connected to the inside of the contact block 2;
[0028] The spring at the end of the extrusion block 3 can increase the clamping force by using the spring force to clamp and position the disc cover parts.
[0029] A spring seat 4 is installed at the central axis of the base 1. The spring seat 4 is in the shape of a ring. Several sets of springs are provided inside the spring seat 4. The springs are fixedly connected to the base 1.
[0030] The main function of the elastic seat 4 is that when the pad block 51 has contacted the upper surface of the disc cover part, but the inner side of the contact block 2 has not contacted the outer surface of the disc cover part, the transmission shaft 5 continues to press down. The elastic seat 4 plays a buffering role and provides an upward elastic force to assist in pressing, which improves the stability of the mechanism movement.
[0031] The upper end of the extrusion block 3 is a slope;
[0032] The slope is designed to allow the four corner protrusions with bearing seat holes to better enter the space between the two sets of extrusion blocks 3 when the disc cover parts are placed.
[0033] The abutting block 2 is provided in four sets, the transmission plate 8 is provided in four sets, and the connecting rod 7 is provided in four sets;
[0034] The contact block 2, transmission plate 8 and connecting rod 7 are respectively provided in four sets, and the movement distance and movement state are exactly the same. When working, the four sets move at the same time, which can play the role of centering and positioning of disc cover parts of different sizes, and there will be no deviation during drilling.
[0035] The base 1 is provided with four sets of sliding grooves 11, the transmission plate 8 slides in the sliding grooves 11, and the sliding grooves 11 are provided with slide rails (not shown in the figure), which limit the movement range of the transmission plate 8.
[0036] The transmission plate 8 moves only in the slide groove 11, and there is a slide rail in the slide groove 11 that limits it in the horizontal direction, so that the transmission plate 8 only moves back and forth in the horizontal direction.
[0037] In summary, the operator first aligns the center circle of the disc cover with the drive shaft 5 and places it on the base 1. Then, the cylinder drives the drive shaft 5 to move downward, causing the connecting seat 6 to move downward. The connecting rod 7, which is mounted on the connecting seat 6, rotates inward and approaches. The connecting rod 7 pulls the drive plate 8 towards the center axis of the base 1 until the inner wall of the contact block 2 contacts the outer wall of the disc cover part. The pad block 51, which is mounted on the drive shaft 5, can move with the downward movement of the drive shaft 5. Its bottom surface contacts the upper surface of the disc cover part and presses it downward. The pressing block 3 is set because there are generally bearing seat holes on the outer side of the motor disc cover part. When the disc cover part is placed between the two sets of pressing blocks 3, it can be positioned. There are four sets of contact blocks 2, drive plate 8 and connecting rod 7, and the movement distance and movement state are exactly the same. During operation, the simultaneous movement of the four sets can play a role in centering and positioning disc cover parts of different sizes, and there will be no deviation during drilling.
[0038] The above description is merely a preferred embodiment of this application. The scope of protection of this application is not limited to the above embodiments. All technical solutions within this concept are within the scope of protection of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should also be considered within the scope of protection of this application.
Claims
1. A positioning and correcting mechanism for drilling end cover type parts, comprising a base (1), characterized in that: A contact block (2) is slidably mounted on the base (1), and a pressing block (3) is slidably mounted on both ends of the contact block (2). A transmission shaft (5) is slidably mounted on the central axis of the base (1). A padding block (51) is mounted above the transmission shaft (5). A connecting seat (6) is mounted below the transmission shaft (5). A connecting rod (7) is rotatably connected to the connecting seat (6). A transmission plate (8) is slidably mounted on the connecting rod (7). The transmission plate (8) is fixedly connected to the contact block (2). The transmission shaft (5) is driven by a cylinder.
2. The positioning and correcting mechanism for drilling end cover type parts according to claim 1, characterized in that: The drive shaft (5) is provided with a thread, and a nut (52) is engaged on the thread. The nut (52) is installed above the pad block (51).
3. The positioning and correcting mechanism for drilling end cover type parts according to claim 1, characterized in that: The shape of the contact block (2) is a quarter-circle arc, and the shape of the squeezing block (3) is the same as that of the contact block (2).
4. The positioning and correcting mechanism for drilling end cover type parts according to claim 1, characterized in that: A spring is installed at the tail end of the extrusion block (3), and the spring is fixedly connected to the inside of the abutment block (2).
5. The positioning and correcting mechanism for drilling end cover type parts according to claim 1, characterized in that: A spring seat (4) is installed at the central axis of the base (1). The spring seat (4) is in the shape of a ring. Several sets of springs are provided inside the spring seat (4). The springs are fixedly connected to the base (1).
6. The positioning and correction mechanism for drilling end cap parts according to claim 1, characterized in that: The upper end of the extrusion block (3) is an inclined surface.
7. The positioning and correcting mechanism for drilling end cover type parts according to claim 1, characterized in that: The abutment block (2) is provided in four sets, the transmission plate (8) is provided in four sets, and the connecting rod (7) is provided in four sets.
8. The positioning and correcting mechanism for drilling end cover type parts according to claim 1, characterized in that: The base (1) is provided with four sets of sliding grooves (11), the transmission plate (8) slides in the sliding grooves (11), and the sliding grooves (11) are provided with slide rails, which limit the movement range of the transmission plate (8).