Automatic limiting device for milling
Patent Information
- Application Number
- CN202522646062.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-15
AI Technical Summary
After welding the battery trays for new energy vehicles, the irregular deformation of the parts leads to uneven weld surfaces. Existing technologies require manual adjustment of the machine tool program, which is labor-intensive, has a high risk of error, and results in a high product defect rate.
An automatic milling limiting device was designed, including a connecting seat, a milling cutter, a transmission component, a guide component, and a limiting component. The transmission component drives the milling cutter to rotate, and under the action of the guide component and the limiting component, the milling cutter moves along the axial direction to achieve automatic alignment cutting.
It enables automatic alignment during the milling process, reducing the workload of manual adjustments, lowering the risk of errors, and improving the product qualification rate.
Smart Images
Figure CN224927528U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milling technology, and in particular to an automatic milling limit device. Background Technology
[0002] After the various parts of the new energy vehicle battery tray are welded together, the overflow weld beads need to be milled by a robotic electric spindle. The expansion and contraction of each part during welding will cause deformation, resulting in uneven weld bead surfaces after welding. However, it is required that each weld bead be flush with the workpiece surface after milling.
[0003] However, when milling the weld seams of different products, the product deformation is irregular and has many categories. The machine tool program parameters need to be adjusted according to the categories, which increases the workload of technicians, increases the risk of errors, and increases the product defect rate, thus resulting in certain defects. Utility Model Content
[0004] The purpose of this invention is to provide an automatic milling limit device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic milling limit device, comprising: Connecting seat, the connecting seat is fixedly installed on the milling electric spindle; A milling cutter is disposed on the front side of the connecting seat and is used to mill the weld bead of the workpiece. A transmission assembly, which is mounted between the milling cutter and the connecting seat; A guide assembly is disposed on the front side of the connecting seat and is in contact with the workpiece, so that the milling cutter moves along the axis of the transmission assembly. A limiting component is disposed between the connecting seat and the guide component, and the limiting component acts on the guide component with an elastic force toward the workpiece.
[0006] Preferably, the transmission assembly includes: A clamping sleeve is drivenly connected to the output end of the milling electric spindle mounted on the connecting seat; A drive shaft, the outer wall of which is slidably sleeved with a clamping sleeve, and the milling cutter is fixedly mounted on the drive shaft.
[0007] Preferably, the transmission assembly further includes: Anti-rotation pin, which is fixedly installed on the drive shaft; A sliding hole is formed on the outside of the clamping sleeve, and the end of the outer wall of the anti-rotation pin is slidably engaged with the inner cavity of the sliding hole.
[0008] Preferably, the guiding component includes: A limiting plate is provided on the front side of the connecting seat, and the outer wall of the transmission shaft is rotatably connected to the limiting plate; A limiting ball is installed on one side of a limiting plate, and the front of the limiting ball is on the same vertical plane as the front of the milling cutter.
[0009] Preferably, the guiding component further includes: The bearing is snapped onto the front of the limiting plate and sleeved onto the front of the drive shaft. A locking nut, which is threaded onto the front side of the drive shaft and located on the front side of the bearing.
[0010] Preferably, the limiting component includes: Side plate, which is fixedly connected to the bottom of the connecting seat; Optical axis seat, which is symmetrically and fixedly connected to the top of the side plate; A connecting shaft is provided, one end of which is fixedly installed on the optical axis seat. The bottom of the front side of the limiting plate is symmetrically provided with through holes, and the outer wall of the connecting shaft is slidably sleeved with the inner cavity of the through holes.
[0011] Preferably, the limiting component further includes: A limiting bolt, the outer wall of which is threaded to the connecting shaft, is located on the front side of the limiting plate; A copper sleeve, which is slidably fitted onto the outside of the connecting shaft; A limiting spring is slidably sleeved on the outside of the connecting shaft, and the limiting spring is located between the copper sleeve and the optical shaft seat.
[0012] The technical effects and advantages of this utility model are as follows: This utility model utilizes the combined use of a connecting seat, a milling cutter, a transmission assembly, a guide assembly, and a limiting assembly. The transmission assembly can not only drive the milling cutter to rotate, but also, under the action of the guide assembly and the limiting assembly, can make the milling cutter move along the axial direction of the transmission assembly. Thus, when one side of the guide assembly is in contact with the workpiece surface, the milling cutter can automatically align and cut the welded joint of the workpiece. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the side of this utility model; Figure 3This is a schematic diagram of the exploded structure of the clamping sleeve of this utility model; Figure 4 This is a schematic diagram of the exploded structure of the side plate of this utility model.
[0014] In the attached diagram: 1. Connecting seat; 2. Milling cutter; 3. Transmission assembly; 31. Clamping sleeve; 32. Drive shaft; 33. Anti-rotation pin; 34. Sliding hole; 4. Guide assembly; 41. Limiting plate; 42. Limiting ball; 43. Bearing; 44. Locking nut; 5. Limiting assembly; 51. Side plate; 52. Optical shaft seat; 53. Connecting shaft; 54. Limiting bolt; 55. Copper sleeve; 56. Limiting spring. Detailed Implementation
[0015] 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.
[0016] This utility model provides, for example Figures 1-4 The automatic milling limiting device shown includes a connecting seat 1, a milling cutter 2, a transmission assembly 3, a guide assembly 4, and a limiting assembly 5. The connecting seat 1 is fixedly installed on the milling electric spindle. The milling cutter 2 is disposed on the front side of the connecting seat 1 and is used to mill the weld seam of the workpiece. The transmission assembly 3 is installed between the milling cutter 2 and the connecting seat 1, that is, the milling electric spindle drives the milling cutter 2 to rotate through the transmission assembly 3, thereby enabling the milling cutter 2 to mill the weld seam of the workpiece. The guide assembly 4 is disposed on the front side of the connecting seat 1 and is in contact with the workpiece, so that the milling cutter 2 can move along the axial direction of the transmission assembly 3. The limiting assembly 5 is disposed between the connecting seat 1 and the guide assembly 4. The limiting assembly 5 acts on the guide assembly 4 with a spring force towards the workpiece, so that under the action of the guide assembly 4 and the limiting assembly 5, the milling depth of the milling cutter 2 at the weld seam of the workpiece is flush with the edge of the workpiece.
[0017] Furthermore, the transmission assembly 3 includes a clamping sleeve 31, a transmission shaft 32, an anti-rotation pin 33, and a sliding hole 34. The clamping sleeve 31 is connected to the output end of the milling electric spindle mounted on the connecting seat 1. The outer wall of the transmission shaft 32 is slidably sleeved with the clamping sleeve 31. The milling cutter 2 is fixedly mounted on the transmission shaft 32. The anti-rotation pin 33 is fixedly mounted on the transmission shaft 32. The sliding hole 34 is opened on the outside of the clamping sleeve 31 and has a certain length. The end of the outer wall of the anti-rotation pin 33 is slidably engaged with the inner cavity of the sliding hole 34. Thus, under the action of the anti-rotation pin 33, the clamping sleeve 31 can drive the transmission shaft 32 and the milling cutter 2 to rotate through the anti-rotation pin 33. Moreover, the transmission shaft 32 can also move relative to the clamping sleeve 31, thereby changing the position of the milling cutter 2.
[0018] Specifically, the guide assembly 4 includes a limiting plate 41, a limiting ball 42, a bearing 43, and a locking nut 44. The limiting plate 41 is located on the front of the connecting seat 1, and the outer wall of the drive shaft 32 is rotatably connected to the limiting plate 41. The limiting ball 42 is installed on one side of the limiting plate 41, and the front of the limiting ball 42 is on the same vertical plane as the front of the milling cutter 2. Thus, when the milling spindle drives the connecting seat 1 to move towards the workpiece, one side of the limiting ball 42 is in contact with the edge of the workpiece. Therefore, when the milling cutter 2 is milling at the weld bead, the milling depth can be the same as the edge of the workpiece. The bearing 43 is engaged with the front of the limiting plate 41, and the front of the limiting plate 41 is equipped with bolts that limit the bearing 43, thereby ensuring the stability of the connection between the bearing 43 and the limiting plate 41. The bearing 43 is sleeved on the front of the drive shaft 32, and the locking nut 44 is threaded onto the front of the drive shaft 32. The locking nut 44 is located on the front of the bearing 43. Figure 3 As shown, the end of the drive shaft 32 is stepped, so that under the action of the locking nut 44, the bearing 43 can maintain a stable rotational connection with the drive shaft 32, and the bearing 43 can also maintain a stable rotational connection with the limiting plate 41. Thus, when the limiting plate 41 moves, it can drive the drive shaft 32 and the milling cutter 2 to move along the axis of the clamping sleeve 31.
[0019] Furthermore, the limiting component 5 includes a side plate 51, an optical axis seat 52, and a connecting shaft 53. The side plate 51 is fixedly connected to the bottom of the connecting seat 1, the optical axis seat 52 is symmetrically fixedly connected to the top of the side plate 51, one end of the connecting shaft 53 is fixedly installed on the optical axis seat 52, and the axis of the connecting shaft 53 is parallel to the axis of the clamping sleeve 31. The bottom of the front side of the limiting plate 41 is symmetrically provided with through holes, and the outer wall of the connecting shaft 53 is slidably sleeved with the inner cavity of the through hole, so that the connecting shaft 53 can guide the limiting plate 41.
[0020] Furthermore, the limiting assembly 5 also includes a limiting bolt 54, a copper sleeve 55, and a limiting spring 56. The outer wall of the limiting bolt 54 is threadedly connected to the connecting shaft 53. The limiting bolt 54 is located on the front of the limiting plate 41. The limiting bolt 54 can limit the limiting plate 41 and prevent the limiting plate 41 from sliding directly separate from the connecting shaft 53. The copper sleeve 55 is slidably sleeved on the outside of the connecting shaft 53. The limiting spring 56 is slidably sleeved on the outside of the connecting shaft 53. The limiting spring 56 is located between the copper sleeve 55 and the optical shaft seat 52. The limiting spring 56 can provide the limiting plate 41 with a spring force away from the connecting seat 1 through the copper sleeve 55, so that the limiting plate 41 can drive the limiting ball 42 to fit against the side of the workpiece.
[0021] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic milling limit device, characterized in that: include: Connecting seat (1), the connecting seat (1) is fixedly installed on the milling electric spindle; A milling cutter (2) is disposed on the front side of the connecting seat (1) and is used to mill the weld bead of the workpiece. Transmission assembly (3), which is installed between the milling cutter (2) and the connecting seat (1); Guide component (4), the guide component (4) is disposed on the front side of the connecting seat (1), the guide component (4) is in contact with the workpiece, so that the milling cutter (2) moves along the axis of the transmission component (3); A limiting component (5) is disposed between the connecting seat (1) and the guide component (4), and the limiting component (5) acts on the guide component (4) with an elastic force toward the workpiece.
2. The automatic milling limit device according to claim 1, characterized in that: The transmission assembly (3) includes: Clamping sleeve (31), the clamping sleeve (31) is drive-connected to the output end of the milling electric spindle mounted on the connecting seat (1); The transmission shaft (32) has its outer wall slidably connected to the clamping sleeve (31), and the milling cutter (2) is fixedly installed on the transmission shaft (32).
3. The automatic milling limit device according to claim 2, characterized in that: The transmission assembly (3) also includes: Anti-rotation pin (33), which is fixedly installed on the drive shaft (32); The sliding hole (34) is located outside the clamping sleeve (31), and the end of the outer wall of the anti-rotation pin (33) is slidably engaged with the inner cavity of the sliding hole (34).
4. The automatic milling limit device according to claim 3, characterized in that: The guiding component (4) includes: A limiting plate (41) is provided on the front side of the connecting seat (1), and the outer wall of the transmission shaft (32) is rotatably connected to the limiting plate (41); The limiting ball (42) is installed on one side of the limiting plate (41), and the front of the limiting ball (42) is in the same vertical plane as the front of the milling cutter (2).
5. The automatic milling limit device according to claim 4, characterized in that: The guide component (4) also includes: The bearing (43) is snapped onto the front of the limiting plate (41) and sleeved onto the front of the drive shaft (32); A locking nut (44) is threaded onto the front side of the drive shaft (32) and is located on the front side of the bearing (43).
6. The automatic milling limit device according to claim 5, characterized in that: The limiting component (5) includes: Side plate (51), the side plate (51) is fixedly connected to the bottom of the connecting seat (1); Optical axis seat (52), which is symmetrically fixedly connected to the top of the side plate (51); A connecting shaft (53) is fixedly installed on an optical axis seat (52) at one end. A through hole is symmetrically opened at the bottom of the front side of the limiting plate (41). The outer wall of the connecting shaft (53) is slidably sleeved with the inner cavity of the through hole.
7. The automatic milling limit device according to claim 6, characterized in that: The limiting component (5) also includes: The limiting bolt (54) has its outer wall threadedly connected to the connecting shaft (53) and is located on the front of the limiting plate (41). A copper sleeve (55) is slidably sleeved on the outside of the connecting shaft (53); A limiting spring (56) is slidably sleeved on the outside of the connecting shaft (53) and the limiting spring (56) is located between the copper sleeve (55) and the optical shaft seat (52).