A motor shaft drilling fixing tool convenient to maintain

Abstract

The utility model relates to step motor manufacturing technical field, concretely is a kind of motor shaft drilling fixed tool convenient to maintain. Including bottom plate, bottom plate is equipped with limit slot, bottom plate is detachably connected with drilling frame, drilling frame is equipped with guide hole, guide hole is connected with isolating bushing, bottom plate is detachably connected with press axle frame, press axle frame is threadedly connected with stud, stud is rotatably connected with pressing plate, stud is connected with handle, bottom plate is connected with fixed plate, fixed plate is equipped with two groups, two groups of fixed plate rotatably connected with screw rod, any fixed plate is connected with step motor, screw rod is connected with step motor output end, screw rod movably connects with baffle, baffle is slidably connected with limit slot, bottom plate is connected with guide rod, bottom plate is slidably connected with guide rod, bottom plate is equipped with fixed slot. Adopt the utility model can be from both ends to the motor shaft is positioned, ensure that motor shaft keeps fixed position, effectively reduce even eliminate radial displacement, improve the machining accuracy of motor shaft.

Description

Technical Field

[0001] This utility model relates to the field of stepper motor manufacturing technology, specifically to a motor shaft drilling and fixing fixture that is easy to maintain. Background Technology

[0002] As a widely used power device in modern industry and daily life, the performance and quality of stepper motors are of paramount importance. The motor shaft is one of the core components of a stepper motor. During the operation of a stepper motor, holes need to be drilled in the motor shaft to install keyways, bearing seats, or other connecting parts.

[0003] Traditional fixed fixtures often use a certain surface of the motor shaft as a positioning reference. Relying on a single reference surface is not enough to fully constrain the radial degree of freedom of the motor shaft. When subjected to external forces, the motor shaft is prone to radial displacement. Utility Model Content

[0004] The present invention aims to provide a convenient maintenance fixture for drilling and fixing motor shafts, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A maintenance-friendly motor shaft drilling and fixing fixture, characterized in that: it includes a base plate with a limiting groove; a drilling frame detachably connected to the base plate; a guide hole provided in the drilling frame; an isolation sleeve connected to the guide hole; a pressure shaft frame detachably connected to the base plate; a stud threadedly connected to the pressure shaft frame; a pressure plate rotatably connected to the stud; a handle connected to the stud; and two sets of fixing plates rotatably connected to a screw. A stepper motor is connected to any one of the fixing plates. The screw is connected to the output end of the stepper motor, and a baffle is movably connected to the screw. The baffle is slidably connected to the limiting groove. A guide rod is connected to the base plate, and the base plate is slidably connected to the guide rod. The base plate has a fixing groove.

[0007] Preferably, the base plate is detachably connected to a limiting plate.

[0008] Preferably, the base plate has a threaded hole, and the drilling frame and the pressure shaft frame each have a strip-shaped hole. The strip-shaped hole is detachably connected to a bolt, and the bolt is threadedly connected to the threaded hole.

[0009] Preferably, the pressure plate is connected to a rubber pad.

[0010] Preferably, the pressure plate is connected to a T-shaped block, the pressure shaft frame is provided with a T-shaped groove, and the T-shaped block is slidably connected to the T-shaped groove.

[0011] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0012] (1) This solution, by setting up a limiting plate, a fixing plate, a screw, a stepper motor, a baffle, and a guide rod, can provide a precise positioning reference for the motor shaft, limiting the motor shaft from both ends to ensure that the motor shaft maintains a fixed position during drilling, effectively reducing or even eliminating radial displacement. This ensures the perpendicularity and positional accuracy of the drilled hole to the central axis of the motor shaft, improving the machining accuracy of the motor shaft, and thus enhancing the overall assembly accuracy and performance of the stepper motor. By adjusting the position of the baffle, it can adapt to the machining needs of motor shafts with different diameters and lengths, making the tooling highly versatile. It can meet the drilling and fixing requirements of various types of motor shafts within a certain range, reducing the cost for enterprises to equip multiple toolings for different specifications of motor shafts.

[0013] (2) By setting threaded holes, strip holes, and bolts, the drilling frame can be easily moved to the appropriate position and fixed for drilling needs at different locations on the motor shaft. The shaft support can also be adjusted to cooperate with the drilling operation, ensuring accurate processing in various complex drilling tasks and increasing the adaptability of the tooling to different processing technologies. Furthermore, if components such as the drilling frame or shaft support are worn or damaged during the use of the tooling, the bolts can be loosened, and the design of the strip holes and threaded holes can be used to easily disassemble and replace the relevant components, reducing maintenance difficulty and time costs, improving equipment maintenance efficiency, and reducing equipment downtime.

[0014] (3) By setting a rubber pad, when the pressure plate contacts the motor shaft through the rubber pad, the rubber pad can better fit the surface of the motor shaft, increasing the contact area. This utilizes the greater friction between the rubber and the motor shaft to effectively prevent the motor shaft from slipping during processing, making the clamping effect more stable and ensuring that the motor shaft remains in a fixed position during drilling and other operations, thus providing a guarantee for precise processing. Furthermore, it can play a good buffering role between the pressure plate and the motor shaft, reducing the impact force caused by rigid contact and avoiding scratches, indentations, and other damage caused by direct hard contact between the pressure plate and the surface of the motor shaft, thus protecting the integrity and smoothness of the motor shaft surface.

[0015] (4) By setting T-blocks and T-slots, a precise guide path is provided for the lifting and lowering of the pressure plate, effectively limiting the displacement of the pressure plate in other directions and ensuring the accuracy of its movement trajectory, thereby improving the positioning accuracy of the pressure plate during operation. This allows for more accurate clamping of the motor shaft, avoiding uneven clamping force caused by pressure plate wobbling or offset, thus improving clamping accuracy. This helps ensure the positional accuracy of the motor shaft during processing, reduces processing errors, and improves product quality. Attached Figure Description

[0016] Figure 1 This is a front view of the present invention;

[0017] Figure 2 A front sectional view of the pressure shaft bracket provided by this utility model;

[0018] Figure 3 This is a right-side cross-sectional view of the baffle of this utility model;

[0019] Figure 4 A top sectional view of the T-shaped block provided by this utility model;

[0020] Reference numerals: Base plate 1, Limiting plate 2, Drilling frame 3, Pressure shaft frame 4, Stud 5, Handle 6, Fixing plate 7, Screw 8, Baffle 9, Stepper motor 10, Threaded hole 11, Bolt 12, Strip hole 13, Fixing groove 14, Limiting groove 15, T-slot 16, Rubber pad 17, Pressure plate 18, Isolation sleeve 19, Guide hole 20, Guide rod 21, T-block 22. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0022] like Figure 1-4The present invention discloses a maintenance-friendly motor shaft drilling and fixing fixture, comprising a base plate 1. The top of the base plate 1 has several parallel, downwardly recessed limiting grooves 15 specifically designed for the placement of the motor shaft, enabling rapid initial positioning of the motor shaft and facilitating subsequent operations. A drilling frame 3 is detachably connected to the base plate 1. The drilling frame 3 has guide holes 20, and an isolation sleeve 19 is connected to the side wall of the guide holes 20. The isolation sleeve 19 is made of a soft and lubricated material, such as rubber or plastic, which prevents the drill bit from directly contacting the side wall of the guide holes 20 during drilling operations, reducing drill bit wear, ensuring drilling accuracy, extending drill bit life, and reducing operating costs. A pressure shaft frame 4 is detachably connected to the base plate 1. The pressure shaft frame 4 is threadedly connected to a stud 5. A pressure plate 18 is rotatably connected to the bottom of the stud 5, and a handle 6 is connected to the top of the stud 5. By rotating the handle 6, the stud 5 connected to the handle 6 causes the pressure plate 18 to move downwards, thereby clamping and limiting the motor shaft in the limiting grooves 15. A fixing plate 7 is connected to the outer front wall of the base plate 1. Two sets of fixing plates 7 are provided, and both sets are rotatably connected to a screw 8. A stepper motor 10 is connected to the outer fixing plate 7. The screw 8 is connected to the output end of the stepper motor 10. A baffle 9 is movably connected to the outer wall of the screw 8. The bottom of the baffle 9 is slidably connected to a limiting groove 15. When the stepper motor 10 is started, its output end drives the screw 8 to rotate, causing the baffle 9, movably connected to the screw 8, to move along the limiting groove 15 until it contacts one end of the motor shaft. This baffle 9, in conjunction with the limiting plate 2, initially limits the motor shaft from both ends. A guide rod 21 is connected to the side of the base plate 1 away from the screw 8. The base plate 1 is slidably connected to the guide rod 21, providing auxiliary guidance and making operation smoother. Fixing grooves 14 are provided at both ends of the base plate 1. Screw assemblies can be installed in these grooves to connect to a drilling machine, ensuring the tooling remains stable during drilling and preventing displacement that could affect accuracy.

[0023] like Figure 1 As shown, the base plate 1 is detachably connected to the limiting plate 2 via screws. The limiting plate 2 and the baffle 9 limit the movement of both ends of the motor shaft. The base plate 1 has several threaded holes 11. The drilling frame 3 and the shaft pressing frame 4 have strip-shaped holes 13 on their front and rear sides, respectively. Bolts 12 are detachably connected to the strip-shaped holes 13, and the bolts 12 are threaded into the threaded holes 11. The positions of the drilling frame 3 and the shaft pressing frame 4 are adjusted according to the size of the motor shaft and the drilling requirements. By loosening the bolts 12 in the strip-shaped holes 13 on the drilling frame 3 and the shaft pressing frame 4, the drilling frame 3 and the shaft pressing frame 4 are slid along the threaded holes 11 of the base plate 1 to a suitable position, and then the bolts 12 are tightened to fix them.

[0024] like Figure 2 As shown, a rubber pad 17 is connected to the bottom of the pressure plate 18. The rubber pad 17 can increase the friction and enhance the clamping effect, and also prevent the pressure plate 18 from damaging the surface of the motor shaft.

[0025] like Figure 4As shown, T-blocks 22 are connected to both ends of the pressure plate 18 near the pressure shaft frame 4. The pressure shaft frame 4 has T-slots 16 corresponding to the T-blocks 22. The two T-blocks 22 are slidably connected to the corresponding T-slots 16, which play a precise guiding role during the lifting and lowering of the pressure plate 18, so that the pressure plate 18 slides stably along the T-slots 16, ensuring the stable movement of the pressure plate 18 and the clamping force is evenly applied to the motor shaft.

[0026] The specific implementation process is as follows:

[0027] In use, the base plate 1 is fixed to the drilling machine with screws. According to the motor shaft size and drilling requirements, the positions of the drilling frame 3 and the pressure shaft frame 4 are adjusted by connecting the bolts 12 (strip hole 13 and threaded hole 11) to the bolts. The upper limit plate 2 is then installed with screws. The motor shaft is then placed into the limiting groove 15, with one end abutting against the upper limit plate 2. The stepper motor 10 is started, causing the screw 8 to move the baffle 9, which, in conjunction with the upper limit plate 2, clamps the motor shaft. Then, the handle 6 is turned, causing the screw 8 to move the pressure plate 18 down along the T-slot 16 against the T-block 22, clamping the motor shaft using the rubber pad 17. Finally, drilling is performed, with the drill bit drilling through the guide hole 20 and the isolation sleeve 19 protecting the drill bit. After drilling, the handle 6 is turned in the opposite direction to release the pressure plate 18, turn off the stepper motor 10, remove the baffle 9, and take out the motor shaft. The tooling can be adjusted and the operation repeated as needed.

[0028] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A maintenance-friendly motor shaft drilling and fixing fixture, characterized in that: The system includes a base plate (1) with a limiting groove (15), a drilling frame (3) detachably connected to the base plate (1), a guide hole (20) connected to the drill frame (3), an isolation sleeve (19) connected to the guide hole (20), a pressure shaft frame (4) detachably connected to the base plate (1), a stud (5) threadedly connected to the pressure shaft frame (4), a pressure plate (18) rotatably connected to the stud (5), a handle (6) connected to the stud (5), and a fixing plate (7) connected to the base plate (1). The fixing plate (7) is provided in two sets, and the two sets of fixing plates (7) are rotatably connected to the screw (8). Each fixing plate (7) is connected to the stepper motor (10). The screw (8) is connected to the output end of the stepper motor (10). The screw (8) is movably connected to the baffle (9). The baffle (9) is slidably connected to the limiting groove (15). The bottom plate (1) is connected to the guide rod (21). The bottom plate (1) is slidably connected to the guide rod (21). The bottom plate (1) has a fixing groove (14).

2. The easy-to-maintain motor shaft drilling and fixing fixture as described in claim 1, characterized in that: The base plate (1) is detachably connected to the limiting plate (2).

3. The easy-to-maintain motor shaft drilling and fixing fixture as described in claim 1, characterized in that: The base plate (1) has a threaded hole (11), and the drilling frame (3) and the pressure shaft frame (4) have strip holes (13) respectively. The strip holes (13) are detachably connected to bolts (12), and the bolts (12) are threadedly connected to the threaded holes (11).

4. The easy-to-maintain motor shaft drilling and fixing fixture as described in claim 1, characterized in that: The pressure plate (18) is connected to a rubber pad (17).

5. The easy-to-maintain motor shaft drilling and fixing fixture as described in claim 1, characterized in that: The pressure plate (18) is connected to a T-shaped block (22), and the pressure shaft frame (4) is provided with a T-shaped groove (16). The T-shaped block (22) and the T-shaped groove (16) are slidably connected.

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