Knuckle deburring device

Abstract

A steering knuckle deburring device comprises a robot, a moving platform component, a clamp component and an ejector pin component. Polishing heads are arranged at output ends of the robots; the moving platform component is provided with a moving plate capable of getting away from or close to the robot; the clamp part comprises a rotatable rotating platform; the ejector pin component comprises a supporting column, a vertical moving mechanism, an ejector rod and a top cover mechanism. The top cover mechanism comprises a lower top cover coaxially arranged on the shaft hole of the knuckle blank in a sleeving mode, an upper top cover fixed to the lower top cover, a plurality of balls and springs, the lower top cover is provided with a plurality of through holes capable of exposing the bottom faces of the balls, and the springs are connected between the top face of each ball and the bottom face of the upper top cover in an abutting mode; the supporting column and the clamp component are integrated on the moving plate, the clamp component drives a steering knuckle blank to rotate, the vertical moving mechanism drives the ejector rod to vertically move relative to the supporting column so that the ejector rod can abut against the top face of the upper top cover, and the ball abuts against the top face of the steering knuckle blank. The technical problem that a traditional ejector rod abuts against the periphery of a rotating joint shaft hole is solved through the top cover mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to steering knuckle processing technical field, especially a steering knuckle deburring device. BACKGROUND

[0002] As shown in the figure, the steering knuckle is provided with an axle hole 6 in the middle, the axle hole 6 is used to pass into the output end of the transmission half shaft, three through holes are provided on the periphery of the axle hole 6, and the three through holes are used to fix the transmission half shaft. Figure 1 For the cast steering knuckle blank, the axle hole 6 is usually polished first, then the flash on the parting surface of the outer side of the steering knuckle is removed, such as the flash segment AB on the figure, and finally the axial two end faces of the mounting through hole of each branch are polished and the mounting through hole is processed.

[0003] Figure 1 In the process of removing the flash on the parting surface of the outer side of the steering knuckle, the steering knuckle usually needs to be rotated at intervals or successively, the polishing head completes the polishing of the parting surface of the steering knuckle, the clamp part is used to support the bottom surface of the steering knuckle, the top rod is used to abut and press the steering knuckle, and the two together drive the steering knuckle to rotate, the bottom surface of the top rod and the top surface of the steering knuckle rotate relatively, due to the existence of the axle hole 6, the top rod abuts on the circumferential top surface of the axle hole 6 and is also close to the two branches, and in addition, due to the need for flatness, the end surface of the axle hole 6 is also relatively close, such as the top rod point C on the figure.

[0004] Correspondingly, the clamp part is caused to rotate with the top rod, the rotating center of the steering knuckle is not located on the area where the axle hole 6 is located, but is located on the vertical projection of the top rod, so that the position of the rotating center of the steering knuckle is very limited, and the rotation of the steering knuckle is unstable. In order to make the steering knuckle rotate stably, the clamping position or clamping density of the clamp part on the steering knuckle needs to be increased or an additional positioning position is used to fix the steering knuckle, such as a pneumatic pressing plate pressing a point away from the top rod of the steering knuckle. Figure 1 A steering knuckle deburring device is needed to avoid selecting the abutting position of the top rod and the steering knuckle from the periphery of the through hole of the steering knuckle.

[0005] UTILITY MODEL CONTENTS The utility model discloses a steering knuckle deburring device which avoids selecting the abutting position of the top rod and the steering knuckle from the periphery of the through hole of the steering knuckle.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0008] ​A knuckle deburring device comprises a robot, a polishing head, a motion platform component, a clamp component, and a ejector pin component.

[0009] The output end of the robot is provided with the polishing head.

[0010] The motion platform component outputs a motion plate that can move away from or close to the robot.

[0011] The clamp component comprises a rotatable rotating platform, and the rotating platform supports a knuckle blank.

[0012] The ejector pin component comprises a support column, a vertical movement mechanism, an ejector rod, and an ejector cap mechanism.

[0013] The ejector cap mechanism comprises a stepped lower ejector cap, an upper ejector cap fixed on the lower ejector cap, a plurality of balls, and a spring, the lower ejector cap is provided with a plurality of through holes for exposing the bottom surface of the balls, and the top surface of each ball and the bottom surface of the upper ejector cap abut against the spring.

[0014] The support column and the clamp component are integrated on the motion plate respectively, the clamp component drives the knuckle blank to rotate, the lower ejector cap is coaxially sleeved on the shaft hole of the knuckle blank, the vertical movement mechanism drives the ejector rod to move vertically relative to the support column so that the ejector rod is in contact with the top surface of the upper ejector cap, and the balls abut against the top surface of the knuckle blank.

[0015] Further, the end of the ejector rod in contact with the ejector cap mechanism is conical or spherical.

[0016] Further, the clamp component comprises, from bottom to top, an integrated plate fixed to the motion plate, the rotating platform, a base, and a plurality of positioning rods.

[0017] The integrated plate rotatably supports the rotating platform, and a clamp motor is arranged on the integrated plate and drives the rotating platform to rotate.

[0018] The base is fixedly connected with the rotating platform.

[0019] All the positioning rods are fixed on the base and are used to jointly support the bottom surface of the knuckle blank.

[0020] The clamp component further comprises at least one limiting rod fixed on the base, and the limiting rod is used to limit the circumferential position of the knuckle blank relative to the shaft hole, so that the knuckle blank and the rotating platform rotate synchronously.

[0021] Further, the limiting rod can be sleeved on the positioning protrusion of the bottom surface of the knuckle blank, or the limiting rod can be sleeved on the through hole or blind hole of the knuckle blank, or the limiting rod can block the outer side surface of the knuckle blank.

[0022] Further, the motion platform component is a two-dimensional motion platform.

[0023] Further, the motion platform component comprises a rack, a Y-direction slider integrated on the rack respectively, an X-direction sliding module and a Y-direction moving mechanism.

[0024] The rack comprises two oppositely arranged Y-direction fixed tables, and the Y-direction fixed tables are arranged along the Y direction.

[0025] Two ends of the Y-direction slider are in sliding connection with the Y-direction fixed tables, and the Y-direction moving mechanism drives the Y-direction slider to slide along the Y direction.

[0026] The X-direction sliding module is arranged on the Y-direction slider, and the motion plate is arranged on an X-direction slider of the X-direction sliding module which moves along the X direction.

[0027] Further, the vertical moving mechanism comprises a vertical lead screw rotatably supported by two ends inside the support column and a nut slider sleeved on the vertical lead screw, the nut slider is in vertical sliding connection with the support column, a lead screw motor drives the vertical lead screw to rotate, the rotation of the vertical lead screw drives the nut slider to move vertically, and the top rod is fixedly connected with the nut slider.

[0028] The utility model discloses a top rod abutting point is arranged at the center of the axle hole of the knuckle, the rotation center of the knuckle is uniformly located on the axis of the axle hole of the knuckle, reduces the clamping density and high-precision clamping requirement of the fixture component to the knuckle, and the fixture component's versatility is improved for the knuckles of different modeling of similar structure. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0030] Figure 1 It is the structure diagram of the prior art knuckle.

[0031] Figure 2 It is the plane structure schematic diagram of the deburring device provided by the utility model.

[0032] Figure 3 It is the three-dimensional schematic diagram of the fixture component and the thimble component provided by the utility model.

[0033] Figure 4This is a structural schematic diagram of the vertical moving mechanism provided by this utility model.

[0034] Figure 5 This is a structural schematic diagram of the motion platform component provided by this utility model.

[0035] Figure 6 This is a schematic diagram of the top cover mechanism provided by this utility model.

[0036] Reference numerals: 1. Robot; 2. Grinding head; 3. Motion platform component; 32. Y-axis fixed stage; 33. X-axis slider; 41. Rotating platform; 42. Integrated plate; 43. Base; 44. Positioning rod; 45. Limiting rod; 51. Support column; 52. Top rod; 53. Lower top cover; 54. Ball bearing; 55. Spring; 56. Upper top cover; 57. Vertical lead screw; 58. Nut slider; 6. Shaft hole. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0038] like Figures 2-6 The deburring device for a steering knuckle shown includes a robot 1, a grinding head 2, a motion platform component 3, a clamp component, and an ejector pin component.

[0039] Among them, the output end of robot 1 is equipped with a grinding head 2. The output end of the robot drives the grinding head 2 through the mechanical arm to grind one side of the steering knuckle blank.

[0040] The motion platform component 3 outputs a motion plate that can move away from or close to the robot 1; the clamping component and the ejector pin component are integrated on the motion plate. The motion platform component 3 plays the role of driving the steering knuckle blank to move, reducing the robot's movement stroke, and also facilitating loading and unloading.

[0041] The fixture component includes a rotatable rotating platform 41 on which a steering knuckle blank is supported; the fixture component serves to drive the steering knuckle to rotate synchronously.

[0042] The ejector pin assembly includes a support column 51, a vertical moving mechanism, an ejector rod 52, and a top cover mechanism.

[0043] The top cover mechanism comprises a stepped lower top cover 53, an upper top cover 56 fixed on the lower top cover 53, a plurality of balls 54 and springs 55. The lower top cover 53 is stepped, with a thin end extending into the shaft hole 6 and a thick end having a plurality of vertical through holes on the bottom surface. The shape of the through holes requires that the lower top cover 53 can expose the bottom surface of the balls 54, and at least half of the balls 54 are left in the lower top cover 53. The top surface of each ball 54 and the bottom surface of the upper top cover 56 are in abutment with the spring 55, and the upper top cover covers the lower top cover. The support column 51 and the clamp component are integrated on the moving plate respectively, the clamp component drives the knuckle blank to rotate, the lower top cover 53 is coaxially sleeved on and buckled on the shaft hole 6 of the knuckle blank, the vertical moving mechanism drives the top rod 52 to move vertically relative to the support column 51 so that the top rod 52 can be abutted on the top surface of the upper top cover 56, and the balls 54 are abutted on the top surface of the knuckle blank. The number of balls 54 is preferably 3-6, which are uniformly distributed in the outer circumference of the shaft hole 6. The balls 54 can move vertically in the through holes, and the springs support the balls to abut against the top surface of the knuckle. The shape of the through hole is preferably a round through hole, but the bottom end of the round through hole is reduced in diameter to prevent the balls 54 from falling out, and the bottom end can be a conical hole. Figure 6 The shape of the through hole is preferably a round through hole, but the bottom end of the round through hole is reduced in diameter to prevent the balls 54 from falling out, and the bottom end can be a conical hole.

[0044] In use, the knuckle blank is fixed and buckled on the clamp component, and then the top cover mechanism is installed at the through hole of the knuckle blank. The clamp component does not limit the vertical upward freedom of the knuckle blank, but the knuckle blank cannot rotate relative to the clamp component. The pressure between the top rod and the upper top cover is adjusted so that the lower top cover and the balls can rotate relative to the knuckle blank when the clamp component drives the knuckle blank to rotate, but the lower top cover limits the upward movement of the knuckle. The balls 54 play a smooth role in the relative rotation of the lower top cover and the knuckle blank.

[0045] In a preferred embodiment, the end of the top rod 52 contacting the top cover mechanism is conical or spherical. This facilitates the positioning of the top rod 52 on the upper top cover.

[0046] In a preferred embodiment, the clamp component comprises, from bottom to top, an integrated plate 42 fixed to the moving plate, a rotating platform 41, a base 43, and a plurality of positioning rods 44.

[0047] The integrated plate 42 moves synchronously with the moving plate, the integrated plate 42 rotates to support the rotating platform 41, and the clamp motor is arranged on the integrated plate 42 and drives the rotating platform 41 to rotate. The integrated plate 42 has a through hole, and the rotating platform 41 has a rotating shaft fixed thereon. The rotating shaft extends into the through hole of the integrated plate 42 and is connected in rotation through bearings or other connecting members. The rotating shaft is driven by the clamp motor, and the inside of the integrated plate 42 is hollow to accommodate the clamp motor, which is not shown in the figure. The top pin component can be integrated into the integrated plate 42.

[0048] The base 43 is fixedly connected with the rotating platform 41, and both of them rotate synchronously; a plurality of supporting rods are fixed between the base 43 and the rotating platform 41, so that the base 43 is arranged above the rotating platform 41. The rotating center of the rotating platform 41 is the axis of the shaft hole 6.

[0049] All the positioning rods 44 are fixed on the base 43 to jointly support the bottom surface of the knuckle blank; for stability, the number of the positioning rods 44 is preferably three, and the position and number of the positioning rods 44 are arranged as required. The top surface of the positioning rod 44 can be a hemispherical surface or match the shape of the bottom surface of the knuckle blank. The positioning rod 44 and the base 43 are preferably screw-connected, so that the height of the positioning rod can be finely adjusted.

[0050] The clamp component further comprises at least one limiting rod 45 fixed on the base 43, which is used to limit the circumferential position of the knuckle blank relative to the shaft hole 6, so that the knuckle blank and the rotating platform 41 rotate synchronously. The number of the limiting rod 45 is preferably two.

[0051] Specifically, because various functional process holes are designed on the knuckle blank, the limiting rod 45 can be positioned by fully utilizing the structural shape of the limiting rod 45 of the knuckle blank. Because of the design stage, a cylindrical positioning protrusion can be reserved on the knuckle blank, and the limiting rod can be sleeved on the positioning protrusion on the bottom surface of the knuckle blank. A weight-reducing hole or a through hole for installing other automobile parts is also designed on the knuckle blank, and the limiting rod 45 can be sleeved on the through hole or blind hole of the knuckle blank, and the shape of the limiting rod 45 matches the through hole or blind hole. Or the limiting rod 45 can block the outer side surface of the knuckle blank, and the limiting rod can adhere to the axial end surfaces of the mounting through holes of the two branches.

[0052] In a preferred embodiment, the motion platform component 3 is a two-dimensional motion platform, which can realize motion along the X-axis or the Y-axis. Preferably, the robot 1 is located at one end of the Y direction, and the robot 1 and the ejector pin component are arranged at both ends of the Y direction, and the X direction is used to install or take the knuckle blank.

[0053] Specifically, the motion platform component 3 comprises a rack, a Y-direction sliding block, an X-direction sliding module and a Y-direction moving mechanism which are respectively integrated on the rack.

[0054] The rack comprises two oppositely arranged Y-direction fixed tables 32, which are arranged along the Y direction,

[0055] The two ends of the Y-direction slider are in sliding connection with the Y-direction fixed table 32, and the Y-direction moving mechanism drives the Y-direction slider to slide along the Y-direction. The Y-direction moving mechanism is a linear reciprocating mechanism, which is prior art, such as a single screw pair mechanism, a linear sliding module, and the like, which will not be described here. Preferably, the Y-direction moving mechanism comprises a horizontal screw rod rotatably supported by a rack, which is arranged in parallel between the two Y-direction fixed tables 32, a horizontal nut matched with the horizontal screw rod, and a horizontal nut fixedly connected with the Y-direction slider, and the horizontal screw rod is driven by a motor to drive the Y-direction slider to move along the Y-direction.

[0056] The X-direction sliding module is arranged on the Y-direction slider, and the movement plate is arranged on the X-direction slider 33 of the X-direction sliding module moving along the X-direction.

[0057] In a preferred embodiment, the vertical moving mechanism comprises a vertical screw rod 57 rotatably supported by the two ends of the inside of the support column 51 and a nut block 58 matched with the vertical screw rod 57. The nut block 58 is in vertical sliding connection with the support column 51, the screw rod motor drives the vertical screw rod 57 to rotate, the vertical screw rod 57 drives the nut block 58 to move vertically, and the top rod 52 is fixedly connected with the nut block 58. The inside of the support column 51 is hollow to accommodate the vertical screw rod, and the outer surface of the support column 51 is provided with an opening arranged vertically towards the top cover mechanism. The nut block 58 is fixedly provided with an inverted L-shaped top rod, which is bent downward by 90° after extending out of the opening, and the end of the top rod close to the nut block 58 is in sliding fit with the opening.

[0058] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A knuckle deburring device characterized by, The robot (1), the polishing head (2), the motion platform component (3), the clamp component, and the ejector pin component are included. The output end of the robot (1) is provided with a polishing head (2). The motion platform component (3) outputs a motion plate that can move away from or close to the robot (1). The clamp component includes a rotatable rotating platform (41) that supports a knuckle blank. The ejector pin component includes a support column (51), a vertical movement mechanism, an ejector rod (52), and an ejector cap mechanism. The ejector cap mechanism includes a stepped lower ejector cap (53), an upper ejector cap (56) fixed on the lower ejector cap (53), a plurality of balls (54), and a spring (55). The lower ejector cap (53) is provided with a plurality of through holes that can expose the bottom surface of the ball (54). The top surface of each ball (54) and the bottom surface of the upper ejector cap (56) abut against the spring (55). The support column (51) and the clamp component are integrated on the motion plate. The clamp component drives the knuckle blank to rotate. The lower ejector cap (53) is coaxially sleeved on the shaft hole (6) of the knuckle blank. The vertical movement mechanism drives the ejector rod (52) to move vertically relative to the support column (51) so that the ejector rod (52) is in contact with the top surface of the upper ejector cap (56). The ball (54) abuts against the top surface of the knuckle blank.

2. The knuckle deburring device of claim 1, wherein The end of the ejector rod (52) that contacts the ejector cap mechanism is conical or spherical.

3. The knuckle deburring device of claim 1, wherein The clamp component includes, from bottom to top, an integrated plate (42) fixed to the motion plate, the rotating platform (41), a base (43), and a plurality of positioning rods (44). The integrated plate (42) rotatably supports the rotating platform (41). A clamp motor is arranged on the integrated plate (42) and drives the rotating platform (41) to rotate. The base (43) is fixedly connected with the rotating platform (41). All the positioning rods (44) are fixed on the base (43) to jointly support the bottom surface of the knuckle blank. The clamp component further includes at least one limiting rod (45) fixed on the base (43). The limiting rod is used to limit the circumferential position of the knuckle blank relative to the shaft hole (6), so that the knuckle blank and the rotating platform (41) rotate synchronously.

4. The knuckle deburring device of claim 3, wherein The limiting rod (45) can be sleeved on the positioning protrusion of the bottom surface of the knuckle blank, or the limiting rod (45) can be sleeved on the through hole or blind hole of the knuckle blank, or the limiting rod (45) can block the outer side surface of the knuckle blank.

5. The knuckle deburring device of claim 1, wherein The motion platform component (3) is a two-dimensional motion platform.

6. The knuckle deburring device of claim 5, wherein The motion platform component (3) includes a rack, a Y-direction sliding block, an X-direction sliding module, and a Y-direction movement mechanism integrated on the rack. The rack includes two oppositely arranged Y-direction fixed tables (32) arranged along the Y direction. The two ends of the Y-direction sliding block are slidably connected with the Y-direction fixed tables (32). The Y-direction movement mechanism drives the Y-direction sliding block to slide along the Y direction. The X-direction sliding module is arranged on the Y-direction sliding block, and the moving plate is arranged on the X-direction sliding block (33) of the X-direction sliding module moving in the X direction.

7. The knuckle deburring device of claim 1, wherein The vertical moving mechanism comprises a vertical lead screw (57) rotatably supported by both ends of the inside of the support column (51) and a nut sliding block (58) sleeved on the vertical lead screw (57), the nut sliding block (58) is in vertical sliding connection with the support column (51), a lead screw motor drives the vertical lead screw (57) to rotate, the vertical lead screw (57) drives the nut sliding block (58) to move vertically, and the top rod (52) is fixedly connected with the nut sliding block (58).

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