A burr cleaning jig for a brushless motor shaft

Abstract

The utility model relates to motor manufacturing technical field especially relates to a kind of burr cleaning fixture for brushless motor shaft, including workbench, support frame, press-in machine and pressure cylinder, workbench rear side is fixedly connected with support frame, support frame top is installed with press-in machine, the piston rod of press-in machine bottom is fixedly connected with pressure cylinder.The utility model is driven by press-in machine to realize the effective removal of the burr on motor shaft by the extrusion finishing of pressure cylinder descending to motor shaft, it is easy to operate, improves the efficiency and consistency of deburring operation, again by the cooperation of guide rod and guide block, it provides stable guide for the vertical movement of pressure cylinder, effectively prevents the eccentric load or shaking of piston rod, ensures the centring accuracy in processing process.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a burr removal fixture for brushless motor shafts. Background Technology

[0002] In the manufacturing process of brushless motors, the motor shaft, as a core transmission component, is typically formed from metal materials through machining processes such as turning, milling, stamping, or grinding. During processing, especially after end face cutting, keyway milling, or chamfering, tiny metal burrs or flash are easily generated on the end face edge, outer cylindrical surface, or around the center hole of the motor shaft. Currently, after the brushless DC motor shaft is flattened by CNC milling on a Swiss-type lathe, burrs are present on both sides of the milled flattened part and the arc-shaped position of the shaft. During the assembly of the whole machine, it is difficult to fit the matching load, or even impossible to fit it. It is necessary to increase the inner diameter of the matching load, but this will affect the mechanical balance of the whole machine and requires customer approval; another option is to further process the burrs.

[0003] Burr removal on motor shafts is typically done manually, sanded, vibratory, or magnetically. While manual deburring is simple, it is inefficient, inconsistent, and prone to causing scratches or over-grinding due to uneven force, thus affecting product quality.

[0004] Therefore, a burr removal fixture for brushless motor shafts needs to be designed to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of low deburring efficiency and poor consistency, this utility model provides a burr cleaning fixture for brushless motor shafts.

[0006] The technical solution is as follows: A burr cleaning fixture for brushless motor shafts includes a worktable, a support frame, a presser, and a press cylinder. The support frame is fixedly connected to the rear side of the worktable, the presser is installed on the top of the support frame, and the press cylinder is fixedly connected to the piston rod at the bottom of the presser.

[0007] Optionally, it also includes a guide rod and a guide block. The guide rod is fixedly connected to the left side of the support frame, and the guide block is fixedly connected to the upper part of the pressure cylinder. A sliding hole is opened on the left side of the guide block, and the guide rod is inserted into the sliding hole and slidably connected to the guide block.

[0008] Optionally, it also includes an additional pressure member and a fixing block, with the additional pressure member fixedly connected to the right side of the guide block, and the fixing block fixedly connected between the additional pressure member and the pressure cylinder.

[0009] Optionally, it also includes a sliding block, with sliding grooves provided on both the front and rear sides of the inner side of the worktable, and a sliding block slidably connected between the two sliding grooves, and the sliding block slidably connected to the worktable.

[0010] Optionally, it also includes a locking block, a positioning block, and a motor shaft. The locking block is placed inside the sliding block. The locking block is ratchet-shaped, and a ratchet groove is provided on the upper part of the sliding block. The positioning block is fixedly connected to the top of the locking block, and the motor shaft is threadedly connected to the inner side of the positioning block.

[0011] Optionally, it also includes a push block, with the push block fixedly connected to the left side of the sliding block, and the push block slidingly contacting the worktable.

[0012] The beneficial effects are: 1. This utility model uses a pressing machine to drive the pressing cylinder to move downward to extrude and trim the motor shaft, thereby effectively removing burrs from the motor shaft. The operation is simple and improves the efficiency and consistency of deburring operations. Furthermore, the cooperation between the guide rod and the guide block provides stable guidance for the vertical movement of the pressing cylinder, effectively preventing the piston rod from being unbalanced or shaking, and ensuring the centering accuracy during the processing.

[0013] 2. This utility model, by setting additional pressure components on the pressure cylinder and cooperating with sliding blocks and push blocks, can adjust the processing position according to the length of the workpiece, thus expanding the applicability of the fixture. Furthermore, by connecting the pressure cylinder and the additional pressure components with a fixing block, the structural rigidity of the overall pressure head is enhanced, ensuring uniform force and smooth operation during the pressing process, and avoiding the impact of deformation on the deburring quality.

[0014] 3. This utility model achieves horizontal movement of the positioning component by cooperating with the sliding block and the sliding groove on the worktable, which facilitates quick clamping and positioning of workpieces, improves the ease of operation and work efficiency of the equipment, and further enhances the positioning structure with a certain anti-loosening and stability function by cooperating with the locking block and the ratchet groove on the sliding block, thereby reducing displacement and improving the reliability of processing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional sectional view of the guide block, additional pressure member, and fixing block of this utility model.

[0017] Figure 3 This is a three-dimensional sectional view of the worktable sliding block and locking block and other components of this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the positioning block, motor shaft, and push block components of this utility model.

[0019] The meanings of the reference numerals in the figure are as follows: 1-Workbench, 101-Slide groove, 2-Support frame, 3-Pressing machine, 4-Pressure cylinder, 5-Guide rod, 6-Guide block, 7-Additional pressing component, 8-Fixing block, 9-Sliding block, 10-Clamping block, 11-Positioning block, 12-Motor shaft, 13-Push block. Detailed Implementation

[0020] Example: A burr removal fixture for brushless motor shafts, such as... Figures 1-4 As shown, it includes a worktable 1, a support frame 2, a presser 3, and a press cylinder 4. The support frame 2 is fixedly connected to the rear side of the worktable 1 by bolts. The presser 3 is installed on the top of the support frame 2. The piston rod at the bottom of the presser 3 is fixedly connected to the press cylinder 4.

[0021] like Figure 1 and Figure 2 As shown, it also includes a guide rod 5 and a guide block 6. The guide rod 5 is fixedly connected to the left side of the support frame 2, and the guide block 6 is fixedly connected to the upper part of the pressure cylinder 4. A sliding hole is opened on the left side of the guide block 6, and the guide rod 5 is inserted into the sliding hole and slidably connected to the guide block 6.

[0022] like Figure 1 and Figure 2 As shown, it also includes an additional pressure component 7 and a fixing block 8. The additional pressure component 7 is fixedly connected to the right side of the guide block 6, and the fixing block 8 is fixedly connected between the additional pressure component 7 and the pressure cylinder 4.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes a sliding block 9. Slide grooves 101 are provided on both the front and rear sides of the inner side of the worktable 1. The sliding block 9 is slidably connected between the two slide grooves 101 and the sliding block 9 is slidably connected to the worktable 1.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes a locking block 10, a positioning block 11 and a motor shaft 12. The locking block 10 is placed inside the sliding block 9. The locking block 10 is in the shape of a ratchet, and a ratchet groove is provided on the upper part of the sliding block 9. The positioning block 11 is welded to the top of the locking block 10, and the motor shaft 12 is threadedly connected to the inner side of the positioning block 11.

[0025] like Figure 3 and Figure 4 As shown, it also includes a push block 13. The push block 13 is welded to the left side of the sliding block 9, and the push block 13 slides in contact with the worktable 1.

[0026] When this device is used to remove burrs from the brushless motor shaft 12, the motor shaft 12 to be processed is first installed on the inner side of the positioning block 11 through a threaded connection, so that the motor shaft 12 is kept in a horizontal and fixed state. Then, the press machine 3 is started, and its piston rod moves downward, driving the pressure cylinder 4 fixedly connected to it to move down synchronously. During this process, the sliding hole on the guide block 6 slides along the guide rod 5 fixed on the left side of the support frame 2, providing guidance and support for the vertical movement of the pressure cylinder 4, preventing uneven load or shaking, and ensuring that the pressure cylinder 4 is accurately aligned. The pressure cylinder 4 continues to press down, using pressure to squeeze, trim or flatten the burrs on the motor shaft 12 to achieve the deburring effect. After completing one deburring operation, the press machine 3 drives the pressure cylinder 4 back to the initial position, and the processed motor shaft 12 can be taken out. A new workpiece can be replaced and the above process can be repeated.

[0027] When the new workpiece is longer and the stroke of the pressure cylinder 4 is insufficient, push the push block 13 to drive the sliding block 9 to slide to the right along the slide groove 101 on the worktable 1. This adjusts the overall position of the locking block 10, the positioning block 11 above it, and the motor shaft 12, so that they are moved directly below the auxiliary pressure component 7. The locking block 10 and the positioning block 11 can be removed from the sliding block 9 for replacement to accommodate different motor shafts 12. The locking block 10 is ratchet-shaped and engages with the ratchet groove on the sliding block 9 to prevent the workpiece from rotating circumferentially during processing and enhance the stability of the processing. Then, start the press machine 3, and the piston rod at the bottom moves downward, driving the pressure cylinder 4 and the auxiliary pressure component 7 to move down synchronously. The fixing block 8 between the auxiliary pressure component 7 and the pressure cylinder 4 enhances the structural rigidity and ensures smooth operation. After the auxiliary pressure component 7 completes deburring, the press machine 3 drives the pressure cylinder 4 back to the initial position, and then the processed motor shaft 12 can be removed.

Claims

1. A burr removal fixture for brushless motor shafts, characterized in that, It includes a worktable, a support frame, a presser, and a press cylinder. The support frame is fixedly connected to the rear side of the worktable, the presser is installed on the top of the support frame, and the press cylinder is fixedly connected to the piston rod at the bottom of the presser.

2. The burr removal fixture for a brushless motor shaft as described in claim 1, characterized in that, It also includes a guide rod and a guide block. The guide rod is fixedly connected to the left side of the support frame, and the guide block is fixedly connected to the upper part of the pressure cylinder. A sliding hole is opened on the left side of the guide block, and the guide rod is inserted into the sliding hole and slidably connected to the guide block.

3. A burr removal fixture for a brushless motor shaft as described in claim 2, characterized in that, It also includes an additional pressure component and a fixing block. The additional pressure component is fixedly connected to the right side of the guide block, and the fixing block is fixedly connected between the additional pressure component and the pressure cylinder.

4. A burr removal fixture for a brushless motor shaft as described in claim 3, characterized in that, It also includes a sliding block. Sliding grooves are provided on both the front and rear sides of the inner side of the worktable, and a sliding block is slidably connected between the two sliding grooves. The sliding block is slidably connected to the worktable.

5. A burr removal fixture for a brushless motor shaft as described in claim 4, characterized in that, It also includes a locking block, a positioning block, and a motor shaft. The locking block is placed inside the sliding block. The locking block is ratchet-shaped and has a ratchet groove on the upper part of the sliding block. The positioning block is fixedly connected to the top of the locking block, and the motor shaft is threadedly connected to the inner side of the positioning block.

6. A burr removal fixture for a brushless motor shaft as described in claim 5, characterized in that, It also includes a push block, with the push block fixedly connected to the left side of the sliding block, and the push block slidingly contacting the worktable.

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