A steering wheel hub core indexing and slot milling apparatus

Abstract

The utility model relates to a milling equipment technical field, concretely is a kind of steering wheel hub core graduation milling equipment, including workbench, be provided with driving mechanism on the workbench, L-shaped sliding seat is slidably arranged in the driving mechanism, the lateral surface of carousel is provided with adjusting assembly, sliding strip is slidably attached and set on the inner wall of C-shaped ring, in the utility model, when extending through No. 1 electric push rod, it will utilize the meshing of No. 2 rack in gear and No. 1 rack side, under the translation of No. 2 rack, gear is rotated, by controlling the telescopic length of No. 1 electric push rod, the slotting depth of workpiece along the center direction can be adjusted, avoid milling mechanism to cause damage to equipment structure, and can be adjusted according to the slotting requirement of different workpieces, carousel rotates and will drive C-shaped ring synchronous rotation, the rotation angle of fixed plate is known by the resistance value monitored using multimeter, so as to know the slotting position of workpiece.

Description

Technical Field

[0001] This utility model relates to the technical field of milling equipment, specifically a steering wheel hub core indexing milling equipment. Background Technology

[0002] The steering wheel hub is a key load-bearing component that connects the steering wheel to the steering shaft. It needs to transmit the driver's steering torque and has extremely high requirements for strength and precision. During the production process, the steering wheel hub needs to have multiple rectangular grooves cut into its end face using a milling cutter around its center line, and these multiple rectangular grooves are evenly distributed on the end face of the steering wheel hub.

[0003] Currently, indexing and milling of workpieces mainly involves clamping and fixing the workpiece on a machining table, using a high-speed rotating milling cutter to move to the workpiece surface to mill the grooves, and adjusting the milling angle of the workpiece by rotating the machining table. For example, a Chinese patent with publication number CN218168828U discloses a rotary indexing and milling device, which has a slide rail on the frame; an active rotating component fixed to the frame, and the output end of the active rotating component has an active gear; a driven gear meshes with the active gear, and the driven gear is detachably connected to a positioning component for mounting cylindrical workpieces; a driving component is connected to an eccentric wheel, the end of which has a protrusion that is rotatably connected to one end of a connecting rod, and the other end of the connecting rod is rotatably connected to a cutting machine, which slides in the slide rail for grooving the side of the cylindrical workpiece. With the above configuration, continuous and efficient uniform grooving of the workpiece's circumference can be achieved.

[0004] In the aforementioned literature, existing milling equipment is only suitable for milling grooves on the outer wall of cylindrical workpieces. When a through groove needs to be cut into the workpiece, the cutting machine can easily damage the positioning parts, thus affecting subsequent processing and the positioning effect of the workpiece. At the same time, the angle adjustment achieved by using a geared motor to drive the workpiece to rotate has poor rotation accuracy, resulting in low processing accuracy. In addition, existing milling equipment cannot adjust the groove depth during use, thus it cannot be adapted to the grooving requirements of different types of workpieces, resulting in a limited scope of application. Therefore, to address the above problems, a steering wheel hub core indexing milling equipment is proposed. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, and addressing the issues that existing technologies can easily damage positioning components due to cutting when cutting workpieces require through slots, thus affecting subsequent processing, and that the angle adjustment achieved by using a geared motor to drive the workpiece rotation has poor rotation accuracy, resulting in low processing precision, and that it cannot be applied to the grooving requirements of different types of workpieces, thus limiting its applicability, this utility model proposes a steering wheel hub core indexing milling device.

[0006] The technical solution adopted by this utility model to solve its technical problem is: the steering wheel hub core indexing milling equipment of this utility model includes a worktable, a driving mechanism is provided on the worktable, an L-shaped sliding seat is slidably provided in the driving mechanism, a rotating clamping assembly is provided on the side of the vertical section of the L-shaped sliding seat, a turntable is rotatably provided in the rotating clamping assembly, and an adjustment assembly is provided on the side of the turntable.

[0007] The adjustment assembly includes a C-shaped ring concentrically fixed to the side of the turntable and a support rod fixed to an L-shaped sliding seat. A fixing plate is fixed to the support rod, and two limiting rods are slidably arranged on the fixing plate. The bottom ends of the two limiting rods are jointly fixed to a sliding strip, and the sliding strip is slidably fitted against the inner wall of the C-shaped ring.

[0008] The adjustment assembly also includes a second worm gear fixedly connected to the curved surface of the turntable, a second worm gear meshing and drivingly connected to the second worm gear, and the second worm gear being rotatably mounted on an L-shaped sliding seat.

[0009] A rack is fixed to the side wall of the horizontal section of the L-shaped sliding seat. A gear is provided on the side of the rack and is connected to it for transmission. A rack is provided on the side opposite to the rack, and the rack is arranged opposite to the rack.

[0010] Preferably, the driving mechanism includes two guide rails fixed on the worktable, and the L-shaped sliding seat is slidably disposed on the two guide rails. The gear is rotatably mounted on the worktable. A first electric push rod is disposed on the side of the second rack opposite to the gear, and the second rack is fixed parallel to the working end of the first electric push rod. The first electric push rod is fixed on the worktable, and a milling mechanism is fixed on the side of the worktable opposite to the turntable and the C-shaped ring.

[0011] Preferably, each of the limiting rods is fitted with a spring, and the springs are all located between the fixed plate and the sliding bar. Each of the limiting rods has a baffle fixed to its top. One end of the main rotation center shaft of the second worm gear is connected to the second motor, and the second motor is fixed on the L-shaped sliding seat.

[0012] Preferably, the rotating clamping assembly includes a rotating shaft rotatably mounted on the side wall of the vertical section of the L-shaped sliding seat, the end of the rotating shaft located on the horizontal section of the L-shaped sliding seat is fixedly connected to a spline shaft, and the turntable is fixedly connected to the end of the spline shaft, and an inner spline sleeve is slidably disposed on the spline shaft.

[0013] Preferably, the turntable has multiple guide grooves evenly arranged, and a slider is slidably disposed in each guide groove. A connecting rod is rotatably mounted on the side wall of the inner spline sleeve opposite to the slider, and the ends of the connecting rods are rotatably mounted on the outer wall of the inner spline sleeve. A clamping block is fixedly connected to the side of the slider opposite to the connecting rod.

[0014] Preferably, a fixed disk is fixedly connected to the inner spline sleeve, and a rotating ring is rotatably installed on the side of the fixed disk. Multiple second electric push rods are fixed on the rotating ring, and all the second electric push rods are fixed on the side wall of the vertical section of the L-shaped sliding seat.

[0015] Preferably, a first worm gear is fixedly connected to the end of the rotating shaft opposite to the spline shaft. A first worm is provided on the first worm gear and is meshed and transmitted with it. The first worm is rotatably mounted on the vertical section side wall of the L-shaped sliding seat. One end of the rotation center shaft of the first worm is transmittedly connected to a first motor, and the first motor is fixed on the vertical section side wall of the L-shaped sliding seat.

[0016] Preferably, the adjustment assembly further includes a multimeter fixed on the L-shaped sliding seat, and the detection terminals of the multimeter are respectively connected to one end of the C-shaped ring and the sliding bar via wires.

[0017] The advantages of this utility model are:

[0018] 1. This utility model utilizes multiple second-generation electric push rods to retract, causing the inner spline sleeve to slide on the spline shaft, thereby simultaneously causing multiple clamping blocks to retract inward to clamp the workpiece. When the first-generation electric push rod extends, it engages with the second-generation rack on the side where the gear and the first-generation rack meet. Under the translational action of the second-generation rack, the gear rotates, thus slotting the workpiece end. The slotting depth along the center direction of the workpiece can be adjusted by controlling the extension and retraction length of the first-generation electric push rod, avoiding damage to the equipment structure caused by the milling mechanism. It can also be adjusted according to the slotting requirements of different workpieces to improve the applicability of the equipment.

[0019] 2. This utility model drives the first worm wheel to rotate under the transmission action of the first worm gear, thereby causing the workpiece to rotate while being clamped by multiple clamping blocks, so as to adjust the grooving angle of the workpiece. When the turntable rotates, it drives the C-shaped ring to rotate synchronously, and the sliding bar slides along the inner wall of the C-shaped ring. The rotation angle of the fixed plate is known by the resistance value monitored by the multimeter, so as to know the grooving position of the workpiece. Furthermore, under the meshing transmission action of the first worm wheel and the first worm gear, the rotation of the shaft is more stable, so as to ensure the grooving accuracy of the workpiece. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the first three-dimensional structure in this embodiment;

[0022] Figure 2 This is an enlarged schematic diagram of the main structure of the driving component in this embodiment;

[0023] Figure 3 This is an enlarged schematic diagram of the main structure of the rotating clamping assembly in this embodiment;

[0024] Figure 4 This is an enlarged schematic diagram of the main structure of the spline shaft in this embodiment;

[0025] Figure 5 This is an enlarged schematic diagram of the slider body structure in this embodiment;

[0026] Figure 6 This is an enlarged schematic diagram of the main structure of the slider in this embodiment.

[0027] In the diagram: 1. Workbench;

[0028] 2. Drive mechanism; 21. Guide rail; 22. L-shaped sliding seat; 23. Gear; 24. Rack No. 1; 25. Electric push rod No. 1; 26. Rack No. 2;

[0029] 3. Rotary clamping assembly; 31. Rotating shaft; 32. Splined shaft; 33. Inner splined sleeve; 34. Turntable; 35. Guide groove; 36. Slider; 37. Clamping block; 38. Connecting rod; 39. Fixed plate; 310. Rotating ring; 311. Electric push rod No. 2; 312. Worm gear No. 1; 313. Worm gear No. 1; 314. Motor No. 1;

[0030] 4. Adjustment assembly; 41. C-ring; 42. Support rod; 43. Fixing plate; 44. Limiting rod; 45. Sliding bar; 46. Baffle; 47. Spring; 48. Worm gear No. 2; 49. Worm gear No. 2; 410. Motor No. 2; 411. Multimeter;

[0031] 5. Milling mechanism. Detailed Implementation

[0032] 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 scope of protection of the present utility model.

[0033] Please see Figure 1-6 As shown, a steering wheel hub core indexing milling device includes a worktable 1, a drive mechanism 2 is provided on the worktable 1, an L-shaped sliding seat 22 is slidably provided in the drive mechanism 2, a rotating clamping assembly 3 is provided on the side of the vertical section of the L-shaped sliding seat 22, a turntable 34 is rotatably provided in the rotating clamping assembly 3, and an adjustment assembly 4 is provided on the side of the turntable 34.

[0034] The adjustment assembly 4 includes a C-shaped ring 41 concentrically fixed to the side of the turntable 34 and a support rod 42 fixed to the L-shaped sliding seat 22. A fixing plate 43 is fixed to the support rod 42. Two limiting rods 44 are slidably arranged on the fixing plate 43. The bottom ends of the two limiting rods 44 are jointly fixed to a sliding strip 45, and the sliding strip 45 is slidably attached to the inner wall of the C-shaped ring 41.

[0035] The adjustment component 4 also includes a second worm gear 48 fixedly connected to the curved surface of the turntable 34, and a second worm 49 meshing and transmitting with the second worm gear 48, and the second worm 49 is rotatably mounted on the L-shaped sliding seat 22.

[0036] A rack 24 is fixedly connected to the side wall of the horizontal section of the L-shaped sliding seat 22. A gear 23 is provided on the side of the rack 24 and meshes with it. A rack 26 is provided on the side opposite to the rack 24, and the rack 26 is arranged opposite to the rack 24.

[0037] The drive mechanism 2 includes two guide rails 21 fixed on the worktable 1, and the L-shaped sliding seat 22 is slidably disposed on the two guide rails 21. The gear 23 is rotatably mounted on the worktable 1. The second rack 26 is provided with a first electric push rod 25 on the side opposite to the gear 23, and the second rack 26 is fixed parallel to the working end of the first electric push rod 25. The first electric push rod 25 is fixed on the worktable 1. A milling mechanism 5 is fixed on the worktable 1 on the side opposite to the turntable 34 and the C-shaped ring 41.

[0038] Each of the limiting rods 44 is fitted with a spring 47, and the springs 47 are located between the fixed plate 43 and the sliding bar 45. Each of the limiting rods 44 has a baffle 46 fixedly connected to its top end. One end of the main rotation center shaft of the second worm gear 49 is connected to the second motor 410, and the second motor 410 is fixed on the L-shaped sliding seat 22.

[0039] The rotating clamping assembly 3 includes a rotating shaft 31 rotatably mounted on the side wall of the vertical section of the L-shaped sliding seat 22. The end of the rotating shaft 31 located on the horizontal section of the L-shaped sliding seat 22 is fixedly connected to a spline shaft 32, and the turntable 34 is fixedly connected to the end of the spline shaft 32. An inner spline sleeve 33 is slidably disposed on the spline shaft 32.

[0040] Multiple guide grooves 35 are evenly arranged on the turntable 34. A slider 36 is slidably arranged in each guide groove 35. A connecting rod 38 is rotatably installed on the side wall of the inner spline sleeve 33 opposite to the slider 36. The ends of the connecting rod 38 are rotatably installed on the outer wall of the inner spline sleeve 33. A clamping block 37 is fixedly connected to the side of the slider 36 opposite to the connecting rod 38.

[0041] A fixed plate 39 is fixedly connected to the inner spline sleeve 33. A rotating ring 310 is rotatably installed on the side of the fixed plate 39. Multiple second electric push rods 311 are fixed on the rotating ring 310, and the second electric push rods 311 are all fixed on the side wall of the vertical section of the L-shaped sliding seat 22.

[0042] A first worm gear 312 is fixedly connected to the end opposite to the spline shaft 32 of the rotating shaft 31. A first worm 313 is provided on the first worm gear 312 and is meshed and transmitted with it. The first worm 313 is rotatably mounted on the vertical section side wall of the L-shaped sliding seat 22. One end of the rotation center shaft of the first worm 313 is transmittedly connected to a first motor 314, and the first motor 314 is fixed on the vertical section side wall of the L-shaped sliding seat 22.

[0043] The adjustment assembly 4 also includes a multimeter 411 fixed on the L-shaped sliding seat 22, and the detection end of the multimeter 411 is connected to one end of the C-shaped ring 41 and the sliding bar 45 by wires.

[0044] During operation, existing milling equipment is only suitable for milling grooves on the outer wall of cylindrical workpieces. When a through groove needs to be made on the workpiece, the cutting machine can easily cause damage to the positioning parts, which will affect the subsequent processing and positioning effect of the workpiece. At the same time, the angle adjustment achieved by using a geared motor to drive the workpiece to rotate has poor rotation accuracy, resulting in low processing accuracy. In addition, existing milling equipment cannot adjust the groove depth during use, which makes it unsuitable for the grooving requirements of different types of workpieces, resulting in a limited scope of application. In this solution, in the initial state, the spring 47 will always push the sliding bar 45 downward so that the bottom side of the sliding bar 45 is in close contact with the inner wall of the C-shaped ring 41, so as to monitor the rotation angle of the turntable 34.

[0045] In use, the workpiece is placed between multiple clamping blocks 37, and then multiple second-generation electric push rods 311 are controlled to retract. When the multiple second-generation electric push rods 311 retract, they drive the inner spline sleeve 33 to slide on the spline shaft 32. When the spline shaft 32 slides to the side opposite to the turntable 34, it drives multiple sliders 36 to slide in the guide groove 35 through multiple connecting rods 38. The multiple sliders 36 retract inward at the same time, which causes the multiple clamping blocks 37 to retract inward at the same time to clamp the workpiece. Then, the first-generation electric push rod 25 is controlled to extend. When the first-generation electric push rod 25 extends, it uses the second-generation rack 26 to mesh with the gear 23 on the side of the first-generation rack 24, and then the second-generation rack 26 is flat. The shifting action drives the gear 23 to rotate, and the transmission action on the first rack 24 on the opposite side of the gear 23 drives the L-shaped sliding seat 22 to slide on the guide rail 21, thereby causing the workpiece on the side of the turntable 34 to move towards the milling mechanism 5, so as to groove the workpiece end. The grooving depth of the workpiece along the center direction can be adjusted by controlling the extension and retraction length of the first electric push rod 25, and the radial grooving depth of the workpiece can be adjusted by adjusting the height of the milling mechanism 5. The grooving is ensured to proceed normally under the clamping action of multiple clamping blocks 37, avoiding damage to the equipment structure caused by the milling mechanism 5, and can be adjusted according to the grooving requirements of different workpieces to improve the applicability of the equipment.

[0046] When the grooving angle of the workpiece needs to be adjusted, the operation of motor 314 is controlled to drive worm gear 313 to rotate. Worm gear 313, in turn, drives worm wheel 312 to rotate. The rotation of worm wheel 312 drives shaft 31 to rotate, which in turn drives turntable 34 to rotate via spline shaft 32. The rotation of spline shaft 32 drives inner spline sleeve 33 to rotate synchronously, causing clamping blocks 37 and turntable 34 to rotate synchronously. Meanwhile, rotating ring 310, connected by electric push rod 311, rotates on the side of fixed plate 39, thereby causing the workpiece to rotate between multiple clamping blocks 37. The workpiece is rotated while being clamped to adjust the grooving angle. When the turntable 34 rotates, it drives the C-ring 41 to rotate synchronously, and the sliding bar 45 slides along the inner wall of the C-ring 41. The further the end of the sliding bar 45 connected to the C-ring 41 with the wire is, the greater the resistance value detected by the multimeter 411. The resistance value monitored by the multimeter 411 is used to determine the rotation angle of the fixed plate 43, so as to determine the grooving position of the workpiece. Under the meshing transmission of the first worm gear 312 and the first worm 313, the rotation of the rotating shaft 31 is more stable to ensure the grooving accuracy of the workpiece.

[0047] The combination achieves the function of indexing and grooving, effectively improving the grooving application range of the equipment, and can monitor the rotation angle of the workpiece to ensure the grooving accuracy of the workpiece.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A steering wheel hub core indexing milling machine, characterized in that: Includes a workbench (1), on which a drive mechanism (2) is provided, and an L-shaped sliding seat (22) is slidably provided in the drive mechanism (2). A rotating clamping assembly (3) is provided on the side of the vertical section of the L-shaped sliding seat (22), and a turntable (34) is rotatably provided in the rotating clamping assembly (3). An adjustment assembly (4) is provided on the side of the turntable (34). The adjustment assembly (4) includes a C-shaped ring (41) concentrically fixed to the side of the turntable (34) and a support rod (42) fixed to an L-shaped sliding seat (22). A fixing plate (43) is fixed to the support rod (42), and two limiting rods (44) are slidably arranged on the fixing plate (43). A sliding strip (45) is fixed to the bottom end of the two limiting rods (44), and the sliding strip (45) is slidably attached to the inner wall of the C-shaped ring (41). The adjustment assembly (4) also includes a second worm gear (48) fixedly connected to the side curved surface of the turntable (34), and a second worm (49) meshing and transmitting with the second worm gear (48), and the second worm (49) is rotatably mounted on the L-shaped sliding seat (22). A rack (24) is fixedly connected to the side wall of the horizontal section of the L-shaped sliding seat (22). A gear (23) is provided on the side of the rack (24) and meshes with it for transmission. A rack (26) is provided on the side opposite to the rack (24) of the gear (23), and the rack (26) is arranged opposite to the rack (24).

2. The steering wheel hub core indexing milling equipment according to claim 1, characterized in that: The drive mechanism (2) includes two guide rails (21) fixed on the worktable (1), and the L-shaped sliding seat (22) is slidably disposed on the two guide rails (21). The gear (23) is rotatably mounted on the worktable (1). The second rack (26) is provided with a first electric push rod (25) on the side opposite to the gear (23), and the second rack (26) is fixed parallel to the working end of the first electric push rod (25). The first electric push rod (25) is fixed on the worktable (1). A milling mechanism (5) is fixed on the worktable (1) on the side opposite to the turntable (34) and the C-shaped ring (41).

3. The steering wheel hub core indexing milling equipment according to claim 1, characterized in that: Each of the limiting rods (44) is fitted with a spring (47), and the springs (47) are located between the fixed plate (43) and the sliding bar (45). Each of the limiting rods (44) has a baffle (46) fixedly connected to its top end. One end of the main rotation center shaft of the second worm gear (49) is connected to the second motor (410), and the second motor (410) is fixed on the L-shaped sliding seat (22).

4. The steering wheel hub core indexing milling equipment according to claim 1, characterized in that: The rotating clamping assembly (3) includes a rotating shaft (31) rotatably mounted on the side wall of the vertical section of the L-shaped sliding seat (22). The end of the rotating shaft (31) located on the horizontal section of the L-shaped sliding seat (22) is fixedly connected to a spline shaft (32), and the turntable (34) is fixedly connected to the end of the spline shaft (32). An inner spline sleeve (33) is slidably arranged on the spline shaft (32).

5. The steering wheel hub core indexing milling equipment according to claim 1, characterized in that: Multiple guide grooves (35) are evenly arranged on the turntable (34). A slider (36) is slidably arranged in each guide groove (35). A connecting rod (38) is rotatably installed on the side wall of the inner spline sleeve (33) opposite to the slider (36). The ends of the connecting rod (38) are rotatably installed on the outer wall of the inner spline sleeve (33). A clamping block (37) is fixedly connected to the side of the slider (36) opposite to the connecting rod (38).

6. The steering wheel hub core indexing milling equipment according to claim 4, characterized in that: A fixed plate (39) is fixedly connected to the inner spline sleeve (33). A rotating ring (310) is rotatably installed on the side of the fixed plate (39). Multiple second electric push rods (311) are fixed on the rotating ring (310), and the second electric push rods (311) are all fixed on the side wall of the vertical section of the L-shaped sliding seat (22).

7. The steering wheel hub core indexing milling equipment according to claim 4, characterized in that: A first worm gear (312) is fixedly connected to the end opposite to the spline shaft (32) of the rotating shaft (31). A first worm (313) is provided on the first worm gear (312) and meshes with it for transmission. The first worm (313) is rotatably mounted on the vertical section side wall of the L-shaped sliding seat (22). One end of the rotation center shaft of the first worm (313) is connected to a first motor (314), and the first motor (314) is fixed on the vertical section side wall of the L-shaped sliding seat (22).

8. The steering wheel hub core indexing milling equipment according to claim 1, characterized in that: The adjustment assembly (4) also includes a multimeter (411) fixed on an L-shaped sliding seat (22), and the detection end of the multimeter (411) is connected to one end of a C-shaped ring (41) and a sliding bar (45) via wires.

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