Steering shaft milling clamp

Abstract

The utility model provides a steering shaft milling processing fixture, relates to milling fixture technical field, including base, fixture subassembly, the fixture subassembly is provided on base upper surface and fixture subassembly includes two symmetrically arranged slide carriage, slide carriage bottom edge and base upper surface slide plug-in connection, slide carriage upper surface is rotatingly connected with bevel gear, the bevel gear is rotatably connected with the bevel gear, and the bevel gear is rotatably connected with the bevel gear. A lead screw is fixedly installed at the top end of the bevel gear, the bottom edge of each sliding base is slidably connected with the upper surface of the base in an inserted mode, and therefore the distance between the two sliding bases can be adjusted according to the diameter of the steering shaft, the lead screw is driven to rotate by driving the bevel gear to rotate, and along with rotation of the lead screw, the lifting base can ascend and descend to drive the clamping arms to conduct height adjustment. The clamping arms can be driven to swing downwards by driving the swing gears to rotate, the balls at the swing ends of the clamping arms abut against the positions, close to the arc tops, of the surfaces of the steering shafts, and the steering shafts of different sizes can be clamped and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling fixture technical field especially relates to a steering shaft milling fixture. BACKGROUND

[0002] The steering shaft transmits the steering force from the steering mechanism (such as the steering wheel) to the wheels. When the driver operates the steering wheel, the steering mechanism generates a steering force, which is transmitted to the wheels through the steering shaft. Milling is required during production. In order to facilitate milling, a clamp is needed to clamp the steering shaft.

[0003] For example, a kind of milling fixture, the publication number is CN218904435U, first the threaded rod is screwed to the designated position of milling machine by the inside of fixed block, so that the device is fixed by threaded rod, motor drives threaded shaft rotation, so that limiting block controls the height of regulating frame along threaded shaft moves, simultaneously, so that regulating frame pulls adjusting frame by connecting plate, so that adjusting frame pushes control frame to rotate with No. 1 rotating shaft as axis, so that control frame pushes main clamp, when main clamp moves, so that main clamp drives limiting plate to rotate, simultaneously, limiting plate rotates with No. 2 rotating shaft as axis, because supporting block is fixedly connected between limiting frame, so limiting plate drives main clamp to rotate downward, thereby making two groups of main clamps clamp large objects.

[0004] But because supporting block is fixedly connected between limiting frame, therefore the relative spacing of the bottom of two main clamps is fixed, and the size of main clamp, control frame and limiting plate is fixed, so the highest point of main clamp swing is fixed, so because the spacing of the bottom of two main clamps is fixed and the highest point of main clamp swing is fixed, the diameter of steering shaft that can be placed between two main clamps is limited. INVENTION CONTENTS

[0005] The utility model aims at solving the problems in prior art and provides a kind of steering shaft milling fixture.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a kind of steering shaft milling fixture, including base,

[0007] Clamp assembly, clamp assembly is set on the upper surface of base and clamp assembly includes two symmetrically arranged slides, the slide bottom edge is slidably inserted with the upper surface of base, the upper surface of slide is rotatably connected with bevel gear, the top of bevel gear is fixedly installed with screw rod, the surface of screw rod is threadedly connected with lifting seat that is vertically lifted and is inserted in the upper surface of slide, the upper surface of lifting seat one side is U-shaped and is rotatably connected with swing gear in U-shaped part, swing gear two ends extend outward and are fixedly installed with clamping arm, clamping arm swing side is provided with clamping groove, clamping groove is embedded with rolling ball, clamp assembly is used to clamp steering shaft of different sizes.

[0008] Preferably, the two sliding seats are respectively located at the left and right sides of the base, and electric push rods are fixedly installed on the upper surface of the base at the left and right sides, and the telescopic end of the electric push rod on the left side of the upper surface of the base is fixed to the side edge of the sliding seat on the right side, and the telescopic end of the electric push rod on the right side of the upper surface of the base is fixed to the side edge of the sliding seat on the left side.

[0009] Preferably, a vertical rack that vertically rises and falls is inserted on the side of the lifting seat close to the oscillating gear, and the side edge of the vertical rack and the lifting seat are also connected by an electric push rod, and the vertical rack is meshingly connected with the oscillating gear.

[0010] Preferably, the upper surface of the base is provided with a power assembly, the power assembly comprises a transmission rod that is rotatably installed on the upper surface of the base and is provided through the two sliding seats, the transmission rod is strip-shaped at both ends and is prismatic at the middle, and the power assembly further comprises a bevel gear ring that is rotatably embedded in the sliding seat.

[0011] Preferably, the surface of the bevel gear ring extends above the sliding seat and is meshingly connected with the bevel gear, the inner wall of the bevel gear ring is in a rectangular shape and is inserted with the strip-shaped part of the transmission rod, and the power assembly is used to drive the lifting seat to rise and fall.

[0012] Preferably, a lifting assembly is installed at the middle position of the upper surface of the base, the lifting assembly comprises a connecting seat that is sleeved on the prismatic part of the middle part of the transmission rod, a rotating gear is rotatably connected to the upper surface of the connecting seat, a rotating seat is fixedly installed at the top end of the rotating gear, the rotating seat is in a U-shaped structure and is rotatably connected with anti-skid rollers on the opposite inner walls, and the lifting assembly is used to support the bottom of the steering shaft.

[0013] Preferably, a steering rack that is meshingly connected with the rotating gear is inserted at the middle position close to the upper surface of the base, and the steering rack and the upper surface of the base are also movably connected by an electric push rod.

[0014] Preferably, the steering rack slides along the width direction of the base.

[0015] Compared with the prior art, the utility model has the advantages and positive effects that,

[0016] 1. In the utility model, the bottom edge of the sliding seat is slidably inserted with the upper surface of the base, so that the distance between the two sliding seats can be adjusted according to the diameter of the steering shaft, and the rotation of the bevel gear drives the rotation of the lead screw, with the rotation of the lead screw, the lifting seat rises and falls to drive the height adjustment of the clamping arm, the rotation of the oscillating gear drives the downward oscillation of the clamping arm, and the ball on the oscillation end of the clamping arm contacts the surface of the steering shaft close to the arc top position, so that different sizes of steering shafts can be clamped and fixed.

[0017] 2. The utility model discloses a center shaft of antiskid gyro wheel is arranged in the width direction of base when clamping steering shaft actually, and the center shaft of antiskid gyro wheel is arranged in parallel with the center shaft of steering shaft, so the personnel can directly rotate steering shaft and roll adjustment processing surface by the rolling of ball, and when the antiskid gyro wheel rotates ninety degrees to the center shaft and the center shaft of steering shaft vertical distribution, personnel can use the rotation of antiskid gyro wheel and remove steering shaft from between two slide bases from one side. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional structure schematic diagram of the steering shaft milling machining clamp is provided for the utility model;

[0019] Figure 2 A rear view structure schematic diagram of the steering shaft milling machining clamp is provided for the utility model; Figure 1

[0020] A sectional view structure schematic diagram of the steering shaft milling machining clamp is provided for the utility model; Figure 3 Figure 1

[0021] Figure 4 An enlarged view of A in the utility model is provided. Figure 3

[0022] Legend: 1, base; 2, slide base; 3, electric push rod; 4, transmission rod; 5, antiskid gyro wheel; 6, bevel gear ring; 7, bevel gear; 8, screw rod; 9, lifting seat; 10, clamping arm; 11, ball; 12, clamping groove; 13, vertical rack; 14, swing gear; 15, connecting seat; 16, rotating seat; 17, rotating gear; 18, steering rack. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] In order for the person in the technical field to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person in the art without creative labor should belong to the protection scope of the present application.

[0025] As Figures 1-4 ​​​As shown, a kind of steering shaft milling processing fixture, including base 1, clamp assembly, clamp assembly is arranged on the upper surface of base 1 and clamp assembly includes two symmetrically arranged sliding seat 2, when using, the two sliding seat 2 is used to clamp the two sides of steering shaft of different sizes by approaching each other, the bottom edge of sliding seat 2 is slidably inserted into the upper surface of base 1, the upper surface of sliding seat 2 is rotatably connected with bevel gear 7, the top end of bevel gear 7 is fixedly installed with lead screw 8, the surface of lead screw 8 is threadedly connected with lifting seat 9 which is vertically lifted and is inserted into the upper surface of sliding seat 2, the side edge of lifting seat 9 is matched with the side edge of sliding seat 2 to realize the clamping of the surface of steering shaft, and when the radius of steering shaft is larger than the top edge of lifting seat 9 in initial state, the rotation of driving bevel gear 7 drives the rotation of lead screw 8, because a part of lifting seat 9 is inserted into sliding seat 2, therefore, with the rotation of lead screw 8, lifting seat 9 will be lifted, to ensure that the side edge lifted by lifting seat 9 can effectively fit the side surface of steering shaft, the side of the upper surface of lifting seat 9 is U-shaped, and a swing gear 14 is rotatably connected in the U-shaped part, the two ends of swing gear 14 extend outward and are fixedly installed with clamping arm 10, the clamping arm 10 is provided with a clamping groove 12, and the clamping groove 12 is embedded with a rolling ball 11, when the two sliding seat 2 approach each other to the side edge of sliding seat 2 or lifting seat 9, the clamping arm 10 can be swung downward by driving the rotation of swing gear 14, the rolling ball 11 on the swinging end of clamping arm 10 can be used to press the surface of steering shaft close to the top of the arc to generate a downward force on steering shaft from top to bottom, to prevent the steering shaft from sliding, and the clamp assembly is used to clamp steering shafts of different sizes.

[0026] Further, the two sliding seats 2 are respectively located at the left and right sides of the base 1, and the electric push rods 3 are fixedly installed on the left and right sides of the upper surface of the base 1, the left side of the electric push rod 3 on the left side of the upper surface of the base 1 is fixedly connected with the side edge of the sliding seat 2 on the right side, and the right side of the electric push rod 3 on the right side of the upper surface of the base 1 is fixedly connected with the side edge of the sliding seat 2 on the left side, and the extension and retraction of the electric push rod 3 in the scheme can realize the movement of the corresponding sliding seat 2.

[0027] Further, the lifting seat 9 is inserted with a vertical rack 13 which is vertically lifted on one side close to the swing gear 14, the vertical rack 13 is connected with the lifting seat 9 through the electric push rod 3, and the vertical rack 13 is meshingly connected with the swing gear 14, and the extension and retraction of the electric push rod 3 in the scheme can realize the lifting of the vertical rack 13, and the swing gear 14 connected with the vertical rack 13 can drive the clamping arm 10 to tilt and swing to adjust the angle.

[0028] Further, the upper surface of the base 1 is provided with a power assembly, the power assembly comprises a transmission rod 4 rotatably installed on the upper surface of the base 1 and penetrating through the two sliding seats 2, the transmission rod 4 is strip-shaped at both ends and prismatic-shaped in the middle, the power assembly further comprises a bevel gear ring 6 rotatably installed in the sliding seat 2, the surface of the bevel gear ring 6 extends above the sliding seat 2 and is meshingly connected with a bevel gear 7, the inner wall of the bevel gear ring 6 is rectangularly arranged and is inserted with the strip-shaped part of the transmission rod 4, the power assembly is used to drive the lifting of the lifting seat 9, when the sliding seat 2 moves, the bevel gear ring 6 installed in the sliding seat 2 is driven to slide along the prismatic surface of the transmission rod 4, and at this time the bevel gear ring 6 does not rotate, but in actual operation, by installing a servo motor on the base 1 to drive the rotation of the transmission rod 4, the prismatic part on the transmission rod 4 can be used to drive the rotation of the bevel gear ring 6 in the sliding seat 2 on the same side, and then the rotation of the bevel gear 7 meshingly connected with the sliding seat 2 on the same side can be realized, that is, the lifting of the lifting seat 9 on the two sliding seats 2 can be realized at the same time.

[0029] Further, a lifting assembly is installed at the middle position of the upper surface of the base 1, the lifting assembly comprises a connecting seat 15, the connecting seat 15 is sleeved on the prismatic part in the middle of the transmission rod 4, and a rotating gear 17 is rotatably connected to the upper surface of the connecting seat 15, a rotating seat 16 is fixedly installed at the top end of the rotating gear 17, the rotating seat 16 is U-shapedly arranged and rotatably connected with an anti-skid roller 5 relative to the inner wall, the lifting assembly is used to support the bottom of the steering shaft, a steering rack 18 meshingly connected with the rotating gear 17 is inserted into the upper surface of the base 1 near the middle position, and the steering rack 18 is movably connected with the upper surface of the base 1 through the electric push rod 3, the steering rack 18 slides along the width direction of the base 1, and the surface of the anti-skid roller 5 can increase the friction by installing rubber pads, so as shown in the figure, when the central axis of the anti-skid roller 5 is arranged along the width direction of the base 1, in actual clamping of the steering shaft, the central axis of the anti-skid roller 5 is arranged in parallel with the central axis of the steering shaft, so that by using the rolling of the ball 11, the person can directly push the steering shaft to roll and adjust the processing surface, and when the steering rack 18 moves to realize the meshing connection of the rotating gear 17, the rotating seat 16 and the anti-skid roller 5 are driven to rotate by ninety degrees and are distributed perpendicularly to the central axis of the steering shaft, the person can use the rotation of the anti-skid roller 5 to pull the steering shaft away from one side between the two sliding seats 2. Figure 4

[0030] ​The working principle is that, in actual use, a plurality of bases 1 are selected to be installed on a milling machine, the steering shaft is placed on the anti-skid rollers 5 on the bases 1, the two sliding seats 2 are clamped to the surface of the steering shaft and approach each other, and according to the diameter of the steering shaft, the bevel gear ring 6 in the sliding seat 2 on the same side is rotated through the transmission rod 4, then the bevel gear 7 meshed and connected on the sliding seat 2 on the same side is rotated, the screw rod 8 is driven to rotate through the rotation of the bevel gear 7, with the rotation of the screw rod 8, the lifting seat 9 is lifted, then the side of the lifting seat 9 that is lifted can be effectively attached to the side surface of the steering shaft, so that the lifting seats 9 on the two sliding seats 2 are lifted at the same time, the vertical rack 13 is lifted through the extension of the electric push rod 3 at the corresponding position, then the swinging gear 14 meshed and connected drives the clamping arm 10 to tilt and swing to adjust the angle, the clamping arm 10 is swung downward through the rotation of the swinging gear 14, and the ball 11 at the swinging end of the clamping arm 10 is abutted against the surface of the steering shaft close to the top of the arc, so that the steering shaft is clamped and fixed.

[0031] The wiring diagram of the electric push rod 3 and the servo motor in the utility model belongs to the common knowledge in the field, the working principle is a known technology, and the model is selected according to actual use, so the control mode and wiring arrangement of the electric push rod 3 and the servo motor are not explained in detail.

[0032] Those skilled in the art should understand that the discussion of the above any embodiment is only exemplary; the technical features in the above embodiments or different embodiments can be combined under the idea of the utility model, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, and they are not provided in details for the sake of simplicity.

[0033] The utility model aims at covering all such alternatives, modifications and variations falling within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A milling fixture for steering shafts, comprising a base (1), characterized in that: The clamp assembly is set on the upper surface of the base (1) and includes two symmetrically arranged slides (2). The bottom edge of the slides (2) is slidably inserted into the upper surface of the base (1). A bevel gear (7) is rotatably connected to the upper surface of the slides (2). A lead screw (8) is fixedly installed at the top of the bevel gear (7). A lifting seat (9) that moves longitudinally and is inserted into the upper surface of the slides (2) is threaded on the surface of the lead screw (8). One side of the upper surface of the lifting seat (9) is U-shaped and a swing gear (14) is rotatably connected inside the U-shaped part. Both ends of the swing gear (14) extend outward and are fixedly installed through clamping arms (10). The swinging side of the clamping arm (10) is provided with a slot (12). A ball bearing (11) is rolled inside the slot (12). The clamp assembly is used to clamp steering shafts of different sizes.

2. The steering shaft milling fixture according to claim 1, characterized in that: Two slides (2) are located on the left and right sides of the base (1) respectively. Electric push rods (3) are fixedly installed on the left and right sides of the upper surface of the base (1). The telescopic end of the electric push rod (3) on the left side of the upper surface of the base (1) is fixed to the side of the slide (2) on the right side, and the telescopic end of the electric push rod (3) on the right side of the upper surface of the base (1) is fixed to the side of the slide (2) on the left side.

3. The steering shaft milling fixture according to claim 1, characterized in that: The lifting seat (9) has a vertical rack (13) for longitudinal lifting inserted on the side near the swing gear (14). The side of the vertical rack (13) is also connected to the lifting seat (9) by an electric push rod (3), and the vertical rack (13) is meshed with the swing gear (14).

4. The steering shaft milling fixture according to claim 1, characterized in that: The upper surface of the base (1) is provided with a power assembly, which includes a transmission rod (4) rotatably mounted on the upper surface of the base (1) and provided through two slides (2). The transmission rod (4) is strip-shaped at both ends and prismatic in the middle. The power assembly also includes a bevel ring (6) embedded in the rotatably mounted slide (2).

5. The steering shaft milling fixture according to claim 4, characterized in that: The surface of the bevel ring (6) extends above the slide (2) and meshes with the bevel gear (7). The inner wall of the bevel ring (6) is rectangular and is inserted into the strip-shaped part of the transmission rod (4). The power assembly is used to drive the lifting seat (9) to rise and fall.

6. The steering shaft milling fixture according to claim 4, characterized in that: A lifting assembly is installed at the middle of the upper surface of the base (1). The lifting assembly includes a connecting seat (15). The connecting seat (15) is sleeved on the prismatic part in the middle of the transmission rod (4), and a rotating gear (17) is rotatably connected to the upper surface of the connecting seat (15). A rotating seat (16) is fixedly installed at the top of the rotating gear (17). The rotating seat (16) is U-shaped and is rotatably connected to an anti-slip roller (5) relative to the inner wall. The lifting assembly is used to support the bottom of the steering shaft.

7. The steering shaft milling fixture according to claim 6, characterized in that: A steering rack (18) that meshes with a rotating gear (17) is inserted into the upper surface of the base (1) near the middle. The steering rack (18) is also movably connected to the upper surface of the base (1) via an electric push rod (3).

8. The steering shaft milling fixture according to claim 7, characterized in that: The steering rack (18) slides along the width direction of the base (1).

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