A stacked blank wheel flipping clamping device

Abstract

This invention discloses a stacked blank wheel flipping and clamping device, belonging to the field of blank wheel pre-processing technology. The stacked blank wheel flipping and clamping device of this invention includes a rotary chassis, two radial clamping mechanisms symmetrically slidably connected to the rotary chassis, and two sets of axial clamping mechanisms respectively fixedly connected to the two radial clamping mechanisms, wherein the two sets of axial clamping mechanisms are arranged opposite to each other. The rotary chassis is connected to a flipping device, which is generally a flipping robot. In specific use, the two radial clamping mechanisms first clamp the stacked blank wheels, simultaneously aligning them. Then, the two oppositely arranged axial clamping mechanisms clamp the wheels, completing the clamping of the stacked blank wheels. Finally, the flipping robot flips the wheels, achieving efficient flipping of the stacked blank wheels while preventing wheel slippage and maintaining the safety and reliability of wheel flipping.

Description

Technical Field

[0001] This invention belongs to the field of pre-processing technology for blank wheels, and more specifically, relates to a stacked blank wheel flipping and clamping device. Background Technology

[0002] Large-diameter wheels with flange diameters between 650mm and 1200mm are bulky and heavy. During the pre-processing of large-diameter wheels, both the inner and outer surfaces need to be machined, requiring the wheels to be turned at least once (some wheels are fed into the factory in the opposite direction, so they need to be turned upon arrival). Based on a designed wheel processing capacity of 50,000 pieces per month, the monthly wheel turning volume needs to reach 50,000 to 80,000 pieces.

[0003] Current large-diameter wheel turning machines are roller conveyor turning machines, which have the following problems during use:

[0004] 1. Generally, they are over 8 meters long and occupy a large area.

[0005] 2. Turning the wheel over requires one person to put the wheel on at one end of the roller conveyor, one person to take the wheel off at the other end of the roller conveyor, and one person to operate it. In total, it takes three people to complete the wheel turning work, which is labor-intensive and costly.

[0006] 3. Because it takes time for the wheels to be loaded and unloaded, the roller conveyor is designed to run at a slow speed. One turning machine can turn about 300 wheels per shift, resulting in low turning efficiency. Summary of the Invention

[0007] 1. Technical problems to be solved

[0008] To address the problems in the existing technology, the present invention provides a stacked blank wheel flipping clamping device, which can radially clamp multiple stacked blank wheels and then axially clamp them, effectively completing the clamping work of the stacked blank wheels, and also maintaining the safety and reliability of wheel flipping during the stacked blank wheel flipping process.

[0009] 2. Technical Solution

[0010] To solve the above problems, the present invention adopts the following technical solution.

[0011] This invention discloses a stacked blank wheel flipping and clamping device, comprising a rotary chassis, two radial clamping mechanisms symmetrically slidably connected to the rotary chassis, and two sets of axial clamping mechanisms respectively fixedly connected to the two radial clamping mechanisms, wherein the two sets of axial clamping mechanisms are arranged opposite to each other. The rotary chassis is connected to a flipping device, which is typically a flipping robot. In practical use, the two radial clamping mechanisms first clamp the stacked blank wheels, simultaneously aligning them. Then, the two oppositely arranged axial clamping mechanisms clamp the wheels, completing the clamping of the stacked blank wheels. Finally, the flipping robot flips the wheels, achieving an efficient flipping process while maintaining the safety and reliability of the wheel flipping.

[0012] As a further improvement of the present invention, a transverse guide rail is fixed on the rotating chassis, and a transverse slider is slidably connected on the transverse guide rail; the radial clamping mechanism includes a base plate, a clamping bracket is fixedly connected to the surface of the base plate, and the back of the base plate is fixedly connected to the transverse slider; the axial clamping mechanism is fixedly connected to the clamping bracket; the clamping action is efficient and labor-saving through the cooperation of the transverse slider and the transverse guide rail.

[0013] As a further improvement of the present invention, the axial clamping mechanism includes a vertical guide rail fixed to the clamping bracket and two upper and lower vertical sliders slidably connected to the vertical guide rail; a base plate is fixed to the surface of each vertical slider, and a clamp is fixedly connected to the surface of each base plate. The upper and lower clamps are arranged opposite to each other to form a clamping slot for clamping the blank wheel; the clamping action is efficient and labor-saving through the cooperation of the vertical slider and the vertical guide rail.

[0014] As a further improvement of the present invention, each set of axial clamping mechanisms includes two parallel axial clamping mechanisms. Each pair of bottom plates in parallel are fixedly connected by a transverse connecting plate. Each set has two parallel axial clamping mechanisms, and the two opposite sets have four axial clamping mechanisms. When the blank wheels are pressed into a stack, the four clamps form a rectangular clamping state for the wheel surface, which effectively ensures the stability of the wheel during the flipping process.

[0015] As a further improvement of the present invention, it also includes a first driving mechanism for radially clamping the radial clamping mechanism and a second driving mechanism for axially clamping the axial clamping mechanism; both the first driving mechanism and the second driving mechanism are driven by a geared motor and a lead screw and nut pair, so that the clamping and clamping actions are more labor-saving.

[0016] As a further improvement of the present invention, there are two parallel transverse guide rails, which serve as mutual calibration and guidance; the drive mechanism includes a transverse lead screw rotatably connected to the transverse slider, and the transverse slider is provided with a thread matching the transverse lead screw; the transmission end of the transverse lead screw is fixedly connected to the reduction motor, and the transverse lead screw is located between the two transverse guide rails, so that the driving action is symmetrically advanced and balanced.

[0017] As a further improvement of the present invention, the second drive mechanism includes a bevel gear servo reducer fixed to the clamping bracket. The upper and lower reduction output ends of the bevel gear servo reducer are respectively connected to a vertical lead screw, and the other end of each vertical lead screw is rotatably connected to a bearing seat. Pairs of bearing seats are symmetrically fixed to the upper and lower parts of the clamping bracket. After the vertical lead screw passes through the transverse connecting plate, the transverse connecting plate is rotatably connected to the vertical lead screw. The bevel gear servo reducer and the two bearing seats mounted on the bracket arms at both ends of the clamping bracket form a rigid support for the lead screw and nut pair. After the servo motor rotates, the rotational motion can be transmitted to the lead screws at both ends through the bevel gear servo reducer, causing the lead screws to rotate synchronously left and right, ensuring that the chuck moves synchronously up and down.

[0018] As a further improvement of the present invention, the axial clamping mechanism also includes a support rod; the chuck is an L-shaped plate with a vertical plate and a horizontal plate fixedly connected. The vertical plate is provided with an arc groove, and the horizontal plate has a pre-reserved through hole. The fixed end of the support rod is fixedly connected to the through hole of the bottom chuck and, after being pressed against the arc groove, the free end of the support rod passes through the through hole of the upper chuck. The through hole of the bottom chuck can be a threaded hole to facilitate the screwing of the fixed end of the support rod. After the clamping action of the clamping mechanism is completed, the four support rods form a rectangular frame. Taking a large-diameter wheel as an example, the rim arc clamped by the two parallel support rods can protrude with a certain margin, effectively preventing radial slippage that may occur in the stacked blank wheels. When the stacked blank wheels are rotated to 90 degrees, the lower support rod forming the support frame, supported by the length of the chuck horizontal plate, provides sufficient support for the radial weight of the stacked blank wheels, ensuring the safety of the stacked blank wheels during rotation.

[0019] As a further improvement of the present invention, the end face of the chuck plate is a slope, and the slopes of the two parallel chucks are inclined inward to fit the arc of the wheel rim as closely as possible.

[0020] As a further improvement of the present invention, two vertical sliders connected in series are fixed on the base plate, which serve as calibration guides for each other; a reinforcing column is also fixed obliquely between the base plate and the clamping bracket, which acts as a reinforcing rib to strengthen the clamping arm extending outward from the clamping bracket.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] (1) The present invention provides a stacked blank wheel flipping clamping device that can firmly clamp the stacked blank wheels from both the radial and axial directions of the wheels. The wheel flange support rod not only clamps the blank wheels, but also effectively controls the problem of the wheels slipping radially.

[0024] (2) The present invention provides a stacked blank wheel flipping clamping device that can clamp stacked blank wheels of different specifications, preferably with a wheel flange diameter between 650mm and 1200mm. Attached Figure Description

[0025] Figure 1 A perspective view of the stacked blank wheel flipping clamping device of the present invention;

[0026] Figure 2 This is a schematic diagram of the main structure of the stacked blank wheel flipping clamping device of the present invention;

[0027] Figure 3 for Figure 2 Sectional view along axis AA;

[0028] Figure 4 for Figure 2 A top-view structural diagram;

[0029] Figure 5 for Figure 4 A magnified diagram of point D;

[0030] Figure 6 This is a partial cross-sectional structural diagram of the vertical slider in this invention;

[0031] Figure 7 This is a schematic diagram of the clamp structure in this invention;

[0032] Figure 8 for Figure 7 A schematic diagram of the side view structure;

[0033] Figure 9 A diagram showing the state of the chuck clamping the blank wheel;

[0034] Figure 10 A diagram showing the state of the wheel being held tightly by the support rod;

[0035] Figure 11 This is a diagram showing the state of the unfinished wheel stacks being turned over.

[0036] In the diagram: 10, Drive Mechanism 1; 20, Drive Mechanism 2; 30, Raw Wheel;

[0037] 1. Rotary chassis; 11. Transverse guide rail; 12. Transverse lead screw; 13. Rotary mounting hole; 15. Transverse slider;

[0038] 2. Radial clamping mechanism; 21. Base plate; 22. Clamping bracket; 23. Reinforcing column;

[0039] 3. Axial clamping mechanism; 31. Chuck; 32. Vertical guide rail; 33. Base plate; 34. Horizontal connecting plate; 35. Support rod; 36. Vertical lead screw; 37. Bevel gear servo reducer; 38. Vertical slider; 39. Bearing seat; 311. Slope; 312. Through hole; 313. Arc groove; 341. Copper nut; 381. Ball chain; 382. End cap. Detailed Implementation

[0040] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "a" and "b" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] The present invention will be further described below with reference to embodiments.

[0043] Example 1

[0044] This embodiment provides a stacked blank wheel flipping clamping device, such as... Figure 1 As shown, the device includes a rotating chassis 1, two radial clamping mechanisms 2 symmetrically slidably connected to the rotating chassis 1, and two sets of axial clamping mechanisms 3 respectively fixedly connected to the two radial clamping mechanisms 2. The rotating chassis 1 is generally circular for easy flipping; the two sets of axial clamping mechanisms 3 are arranged opposite each other. Rotary mounting holes 13 are reserved around the periphery of the rotating chassis 1. The rotating chassis 1 is connected to the flipping device through the rotary mounting holes 13. The flipping device is generally a flipping robot. In specific use, the two radial clamping mechanisms 2 first clamp the stacked blank wheels, simultaneously aligning the stacked blank wheels. Then, the two sets of axial clamping mechanisms 3 are arranged opposite each other to clamp the stacked blank wheels. After clamping, the flipping robot flips the wheels, achieving an efficient flipping process while maintaining the safety and reliability of the wheel flipping. Figure 1 , 2 As shown, a transverse guide rail 11 is fixed on the rotating chassis 1, and a transverse slider 15 is slidably connected to the transverse guide rail 11; as Figure 1 , 3As shown, the radial clamping mechanism 2 includes a base plate 21, a clamping bracket 22 fixedly connected to the surface of the base plate 21, and a transverse slider 15 fixedly connected to the back of the base plate 21; the axial clamping mechanism 3 is fixedly connected to the clamping bracket 22; the clamping action is efficient and labor-saving through the cooperation of the transverse slider 15 and the transverse guide rail 11. Figure 1 , 3 As shown in Figure 5, the axial clamping mechanism 3 includes a vertical guide rail 32 fixed to the clamping bracket 22 and two upper and lower vertical sliders 38 slidably connected to the vertical guide rail 32. A base plate 33 is fixed to the surface of each vertical slider 38, and a clamp 31 is fixedly connected to the surface of each base plate 33. The upper and lower clamps 31 are arranged opposite to each other to form a clamping slot for clamping the blank wheel 30. Through the cooperation of the vertical sliders 38 and the vertical guide rail 32, the clamping action is efficient and labor-saving. Each set of axial clamping mechanisms 3 includes two parallel axial clamping mechanisms 3. Each pair of base plates 33 in parallel are fixedly connected by a transverse connecting plate 34. Each set has two parallel axial clamping mechanisms 3, and the two sets opposite each other have four axial clamping mechanisms 3. When the blank wheels are pressed into a stack, the four clamps 31 form a rectangular clamping state for the wheel surface, which effectively ensures the stability of the wheel during the flipping process.

[0045] like Figure 1 , 2As shown in Figure 4, in order to make the clamping and holding actions of the radial clamping mechanism 2 and the axial clamping mechanism 3 less strenuous, it is also necessary to set up a drive mechanism 10 for driving the radial clamping mechanism 2 to clamp radially and a drive mechanism 20 for driving the axial clamping mechanism 3 to clamp axially. Both drive mechanisms 10 and 20 are driven by a geared motor and a lead screw and nut pair. The transverse guide rails 11 on the rotary chassis 1 are two parallel ones, which serve as mutual calibration guides. The drive mechanism 10 includes a transverse lead screw 12 rotatably connected to the transverse slider 15. The transverse slider 15 is provided with a thread matching the transverse lead screw 12. The transmission end of the transverse lead screw 12 is fixedly connected to the geared motor. The transverse lead screw 12 is located between the two transverse guide rails 11, so that the driving action is symmetrically advanced and balanced. The second drive mechanism 20 includes a bevel gear servo reducer 37 fixed to the clamping bracket 22. The upper and lower reduction output ends of the bevel gear servo reducer 37 are respectively connected to a vertical lead screw 36. The other end of each vertical lead screw 36 is rotatably connected to a bearing seat 39. The paired bearing seats 39 are symmetrically fixed to the upper and lower parts of the clamping bracket 22. After the vertical lead screw 36 passes through the transverse connecting plate 34, the transverse connecting plate 34 is rotatably connected to the vertical lead screw 36. The bevel gear servo reducer 37 and the two bearing seats 39 mounted on the support arms at both ends of the clamping bracket 22 form a rigid support for the lead screw and nut pair. After the servo motor rotates, the rotational motion can be transmitted to the lead screws at both ends through the bevel gear servo reducer 37, causing the lead screws to rotate synchronously left and right, ensuring that the chuck 31 moves synchronously up and down.

[0046] Example 2

[0047] This embodiment of the stacked blank wheel turning clamping device has the same basic structure as Embodiment 1, but the difference or improvement is that the axial clamping mechanism 3 further includes a support rod 35; as shown in the example. Figure 1 , 3As shown in Figures 7 and 8, the clamp 31 is an L-shaped plate with a vertical plate and a horizontal plate fixedly connected. The vertical plate has an arc-shaped groove 313, and the horizontal plate has a pre-drilled through hole 312. The fixed end of the support rod 35 is fixedly connected to the through hole 312 of the bottom clamp 31 and, after being pressed against the arc-shaped groove 313, the free end of the support rod 35 passes through the through hole 312 of the upper clamp 31. The through hole 312 of the bottom clamp 31 can be a threaded hole, facilitating the screw connection of the fixed end of the support rod 35. After the clamping mechanism 3 completes its clamping action, the four support rods 35 form a rectangular frame. Taking a wheel with an 800mm diameter rim as an example, the rim arc clamped by the two parallel support rods 35 can protrude by approximately 26mm, effectively preventing radial slippage that may occur when stacking blank wheels. When the stacked blank wheels are rotated to 90 degrees, the lower support rod forming the support frame, supported by the 350mm length of the chuck cross plate, provides sufficient radial support for the stacked blank wheels, ensuring the safety of the wheel rotation. The end face of the chuck 31 cross plate is preferably set as a slope 311, and the slopes 311 of the two parallel chucks 31 are inclined inward to fit the arc of the wheel rim as closely as possible, making the clamping action more balanced and avoiding excessive local force during rotation, which could damage the wheel surface. Two vertical sliders 38 are fixed in series on the base plate 33, which serve as mutual calibration guides; a reinforcing column 23 is also obliquely tensioned and fixed between the base plate 21 and the clamping bracket 22, which acts as a reinforcing rib to strengthen the clamping arm extending outward from the clamping bracket 22.

[0048] Example 3

[0049] This embodiment of the stacked blank wheel turning clamping device has the same basic structure as Embodiment 2, but the difference or improvement is as follows: Figure 6 As shown, the vertical slider 38 uses a guide rail slider with an internal structure of a ball chain 381. The ball chain 381 is sealed by end caps at both ends of the vertical slider 38 to prevent the balls from breaking off during rotation. The ball chain 381 allows the sliding connection of the vertical slider 38 to be transformed into a rolling connection, making operation more effortless.

[0050] Example 4

[0051] This embodiment of the stacked blank wheel turning clamping device has the same basic structure as Embodiment 3, but the difference or improvement is as follows: Figure 3 As shown, a copper nut 341 is fixedly connected to the outer side of the transverse connecting plate 34. The copper nut 341 can be connected to the transverse connecting plate 34 with bolts through the seven holes reserved in the copper nut 341. The linear motion of the copper nut 341 is transmitted to the base plate 33 through the transverse connecting plate 34. The main function of the copper nut 341 is to convert the rotational motion of the vertical lead screw 36 into the linear motion of the transverse connecting plate 34, which drives the chuck 31 to clamp or loosen the stacked blank wheels 30 axially.

[0052] In practical use, the flipping process of the stacked blank wheel flipping robot is as follows:

[0053] 1. Feeding blanks - Place the stacked blanks on the designated wheel.

[0054] 2. Clamping - The stacked blank wheel flipping robot moves forward, and the stacked blank wheels are clamped by the stacked blank wheel flipping clamping device in this embodiment.

[0055] 3. The lifting-flipping robot lifts the stacked blank wheels to a height that allows the stacked blank wheels to flip, with a maximum diameter of 1200mm.

[0056] 4. Flip - The motor and gear selection drive the rotating chassis 1 to rotate 180 degrees.

[0057] 5. Unloading the blanks - Lower the rotating stack of blanks to the position before lifting, loosen the clamps, and unload the blanks.

[0058] 6. Retraction - The stacked blank wheel-turning robot retracts.

[0059] Example 5

[0060] This embodiment of the present invention provides a stacking and clamping device for blank wheels, with a basic structure similar to that of Embodiment 4, and is applied to the stacking of 5 blank wheels. In practical use:

[0061] Two sets of axial clamping mechanisms 3, one on the left and one on the right, are installed on the clamping bracket 22. The clamping bracket 22 is formed by connecting vertical and horizontal connecting columns.

[0062] The axial clamping mechanism 3 mainly includes: vertical guide rail 32 for upper and lower clamping, vertical slider 38, slider connecting base plate 33, chuck 31, wheel flange clamping support rod 35, horizontal connecting plate 34, copper nut 341, vertical lead screw 36, lead screw bearing seat 39, bevel gear reducer, and servo motor.

[0063] There are two sets of axial clamping mechanisms 3, one on the left and one on the right. Taking the right-side axial clamping mechanism 3 as an example, the structure and function of the axial clamping mechanism 3 will be explained in detail.

[0064] 1. Vertical guide rails 32 clamped from top to bottom

[0065] Quantity: 4 pieces

[0066] Material: The vertical guide rail 32, which clamps the upper and lower parts, adopts a standard HGR45 guide rail, with a length of 1.25 meters. Based on the height of the 5 blank wheels (the highest stack height: 562mm-1083mm), the length of the chuck 31 is 50mm*2, and the reserved distance between the chuck 31 and the wheel is 30mm*2. 1083+100+60=1243mm, so we take 1250mm.

[0067] The guide rails are bolted to the clamping bracket 22, with the centers of the two guide rails 300mm apart, forming a rectangular support point with the corresponding clamp 31 and support rod 35. The clamping device will clamp or release the stacked blank wheels as the clamping bracket 22 moves laterally.

[0068] 2. Vertical slider 38

[0069] Quantity: 16 pieces

[0070] Material: Vertical slider 38 uses standard HGR45 guide rail slider.

[0071] Because the HGR45 guide rail slider has internal ball bearings and is mounted on the guide rail, it has a low coefficient of friction and a sensitive response. When the base plate 33 is moved up and down by the transverse connecting plate 34, the vertical slider 38 moves up and down on the guide rail.

[0072] The bottom surface of the vertical slider 38 is connected to the base plate 33 by bolts. Two vertical sliders 38 are installed on one base plate 33. The span of the two vertical sliders 38 is about 370mm, which effectively controls the swing of the base plate 33 relative to the guide rail and increases the stability of the chuck 31 in holding the wheel.

[0073] 3. Base plate 33

[0074] Quantity: 8 pieces

[0075] Material: Q355-A, machined from 442*165*40mm steel plate, designed to accommodate the installation of two vertical sliders 38, a chuck 31, and an insertable horizontal connecting plate 34. Two vertical sliders 38 are mounted on one side of the base plate 33, and a chuck 31 is mounted on the other side. A 50*20mm groove for mounting the connecting plate is cut into the edge. The vertical movement of the connecting plate causes the vertical sliders 38 and the chuck 31 to clamp or loosen along the guide rails.

[0076] 4. Chuck 31

[0077] Quantity: 8 pieces

[0078] Material: 42CrMo, possessing high strength and toughness. After tempering, it exhibits a high fatigue limit and resistance to repeated impacts. The main function of the chuck is to axially clamp the wheels, ensuring their axial stability during the flipping of the stacked blank wheels. The chuck 31 is mounted on the base plate 33, and as the base plate 33 moves up and down, it axially clamps or releases the stacked blank wheels. Simultaneously, the clamping end of the chuck 31 is connected to the chuck plate body by… The holes and slots are designed to install the support rod 35, and the lower end is designed with an M12 threaded hole for fixing. The support rod 35, with its 350mm long chuck plate of upper and lower jaws 31, effectively supports the pressure of the wheel on the support rod 35. The 50mm thick chucks are designed to withstand a weight of over 2 tons. The chuck length is 90mm, minus the 10mm height of the support rod 35, the 20mm wheel rim radius, and the 10mm wheel tread. Regardless of whether it's the inner or outer effective clamping area, there is still 90-10-20-10=50mm remaining. For example... Figure 9 As shown, the center of the chuck 31 corresponds to 300mm of the guide rail. The left and right directions are controlled by the clamping bracket 22 according to the size of the wheel. The four chucks 31 form a rectangular clamping state, which effectively ensures the stability of the wheel during the flipping process.

[0079] 5. Support rod 35

[0080] Quantity: 4 pieces

[0081] Material: Cr12MoV The length is 1245mm. Based on the height of the 5 blank wheels (the highest stack height: 562mm-1083mm), plus the thickness of the chuck 31 (50mm) and the 30mm allowance for axial clamping of the wheels, 1083 + 50*2 + 30*2 = 1243mm, so we take 1245mm. The main function of the support rod 35 is to radially clamp the stacked blank wheels, ensuring the radial stability of the wheels during the flipping process.

[0082] like Figure 10 As shown, the support rod 35, driven by the clamping bracket 22, radially pre-clamps the stacked blank wheels. After the support rod 35 contacts and clamps the wheel rim, the clamping bracket 22 loosens by 2mm. After the chuck 31 finishes clamping, the clamping bracket 22 drives the clamping device to radially clamp the wheels again using the support rod 35. After the clamping action of the clamping device is completed, the four support rods 35 form a rectangular frame. The wheel rim arc clamped by the two support rods 35 with a rim diameter of 800mm protrudes by about 26mm, effectively preventing radial slippage that may occur in the stacked blank wheels.

[0083] like Figure 11 As shown, when the stacked blank wheel is rotated to 90 degrees, the two support rods 35 at the lower end of the frame, supported by the 350mm length of the clamp plate, provide sufficient support for the radial weight of the stacked blank wheel, ensuring the safety of the stacked blank wheel rotation.

[0084] 6. Horizontal connecting plate 34

[0085] Quantity: 4 pieces

[0086] Material: Q235-A steel plate, 160*100*50mm. The main function of the transverse connecting plate 34 is to transmit the up-and-down movement of the nut to the base plate 33. The base plate drives the vertical slider 38 to move up and down along the guide rail, causing the chucks to clamp or loosen the axial clearance of the stacked blank wheels. The transverse connecting plate 34 is connected to the nut using bolts through seven holes, and the transverse connecting plate is inserted into the groove of the base plate 33. The up-and-down movement of the nut causes the transverse connecting plate 34, inserted into the groove of the base plate, to move up and down, causing the chucks 31 on the base plate 33 to clamp or loosen the axial clearance of the stacked blank wheels.

[0087] 7. Copper nut 341

[0088] Quantity: 4 pieces

[0089] Material: Cast lead bronze (ZCuPb10Sn10), with good lubricity, wear resistance, and corrosion resistance; thread type T40*8. The nut is connected to the transverse connecting plate 34 via bolts through seven holes. The connecting plate transmits the linear motion of the nut to the base plate 33. The main function of the copper nut 341 is to convert the rotational motion of the lead screw into the linear motion of the transverse connecting plate 34, driving the chuck 31 to clamp or loosen the stacked blank wheels axially.

[0090] 8. Lead screw

[0091] Quantity: 4 pieces

[0092] Material: 42CrMo, thread type T40*8, total length 575mm. The main function of the lead screw is to convert the rotational motion of the motor into linear motion of the nut. The upper and lower lead screws are respectively mounted on the upper and lower bearing seats and the bevel gear reducer, forming a rigid threaded pair. The nut can slide along the transverse connecting plate 34 driven by the rigid lead screw.

[0093] 9. Bearing housing 39

[0094] Quantity: 4 pieces

[0095] Material: Q355-A. Bearing housing 39 is mounted on clamping bracket 22 and connected to lead screw via bearing. Two bearing housings are mounted on the bracket arms at both ends of the clamping bracket, forming a rigid transmission chain with the bevel gear reducer fixed in the middle of the clamping bracket, supporting the up and down movement of the nut and the transverse connecting plate 34.

[0096] 10. Bevel gear reducer

[0097] Quantity: 2 pieces

[0098] Specifications: BSAF202BEBH04, bevel gear servo reducer 37. If the servo motor used to drive the lead screw that clamps or releases the stacked blank wheels axially were installed on the upper end of the clamping bracket 22, it would increase the flipping space of the flipping robot. Therefore, the design uses a design where the servo motor is installed in the middle of the clamping bracket 22. However, the axis of the servo motor is perpendicular to the axis of the lead screw. The main function of the bevel gear servo reducer is to convert the axial rotation of the servo motor into the lateral rotation of the lead screw. The bevel gear servo reducer 37 is installed on the connecting steel plate in the middle of the clamping bracket 22. Together with the two bearing seats 39 installed on the support arms at both ends of the clamping bracket, it forms a rigid support for the lead screw nut pair. After the servo motor rotates, the rotational motion is transmitted to the lead screws at both ends through the bevel gear servo reducer 37, causing the lead screws to rotate synchronously left and right, ensuring the synchronous up and down movement of the chuck.

[0099] 11. Servo motor

[0100] Quantity: 2 pieces

[0101] Specifications: 0.75KW, 1FL6044-1AF61-2LG1 Siemens motor. The design of the stacked blank wheel turning robot is fully automated and unmanned. The clamping device needs to automatically clamp or release during operation, so a 1FL6044-1AF61-2LG1 Siemens servo motor is used for easy programming. The motor power of 0.75Kw is chosen to take into account the weight of five stacked blank wheels (up to 2 tons) ultimately lifted by the chuck 31 via the transmission chain.

[0102] The working principle of the robot clamping device for the stacked blank wheel flipping machine is as follows: The flipping robot moves forward to the center position of the wheel corresponding to the stacked blank wheel flipping clamping device in this embodiment. The clamping bracket 22 drives the clamping device to radially pre-clamp the stacked blank wheel, and then loosens it by 2mm. At this time, the four clamps 31 of the clamping device are respectively above and below the stacked blank wheel. The servo motor for the upper and lower clamping of the clamping device starts, and through the rotation of the screw nut pair, it drives the horizontal connecting plate 34 to move up and down. The horizontal connecting plate 34 inserted on the base plate 33 drives the base plate 33 to move up and down. Under the control of the vertical slider 38, the base plate 33 moves up and down along the guide rail. The clamps 31 installed on the base plate 33 clamp the stacked blank wheel axially. (During this process, the clamps below the stacked blank wheel will slowly lift the stacked blank wheel a certain distance. After the upper clamp 31 completely clamps the wheel, the motor stops running, and the threaded pair self-locks.) The clamping bracket 22 drives the clamping device to radially clamp the stacked blank wheel again. The lifting mechanism of the stacked blank wheel flipping robot raises the clamping bracket 22 to a certain height. The flipping motor starts, and the motor drives the large gear to rotate, rotating the large gear rotating chassis 1 by 180 degrees. The lifting mechanism of the stacked blank wheel flipping robot then descends to its original position. The clamping bracket 22 drives the clamping device to loosen the stacked blank wheel by 2mm. The servo motors of the clamping device for upper and lower clamping start, rotating the lead screw and nut pair to drive the horizontal connecting plate 34 to move up and down. The horizontal connecting plate 34 inserted on the base plate 33 drives the base plate 33 to move up and down. Under the control of the vertical slider 38, the base plate 33 moves up and down along the guide rail. The chuck 31 installed on the base plate 33 loosens the stacked blank wheel axially, and the clamping bracket 22 drives the clamping device to open to its original position. The flipping robot then returns to its original position.

[0103] The examples described herein are merely preferred embodiments of the invention and are not intended to limit the concept and scope of the invention. Any modifications and improvements made by those skilled in the art to the technical solutions of the invention without departing from the design concept of the invention should fall within the protection scope of the invention.

Claims

1. A device for flipping and clamping stacked blank wheels, characterized in that: It includes a rotary chassis (1), two radial clamping mechanisms (2) symmetrically slidably connected to the rotary chassis (1), and two sets of axial clamping mechanisms (3) respectively fixedly connected to the two radial clamping mechanisms (2), wherein the two sets of axial clamping mechanisms (3) are arranged opposite to each other; A transverse guide rail (11) is fixed on the rotary chassis (1), and a transverse slider (15) is slidably connected on the transverse guide rail (11); The radial clamping mechanism (2) includes a base plate (21), a clamping bracket (22) is fixedly connected to the surface of the base plate (21), and the back of the base plate (21) is fixedly connected to the transverse slider (15); the axial clamping mechanism (3) is fixedly connected to the clamping bracket (22). The axial clamping mechanism (3) includes a vertical guide rail (32) fixed to the clamping bracket (22) and two upper and lower vertical sliders (38) slidably connected to the vertical guide rail (32); a base plate (33) is fixed on the surface of each vertical slider (38), and a clamp (31) is fixedly connected to the surface of each base plate (33). The upper and lower clamps (31) are arranged opposite to each other to form a clamping slot for clamping the blank wheel (30); Each axial clamping mechanism (3) includes two parallel axial clamping mechanisms (3), and each pair of base plates (33) in parallel are fixedly connected by a transverse connecting plate (34); It also includes a first drive mechanism (10) that drives the radial clamping mechanism (2) to perform radial clamping and a second drive mechanism (20) that drives the axial clamping mechanism (3) to perform axial clamping; both the first drive mechanism (10) and the second drive mechanism (20) are driven by a geared motor and a lead screw and nut pair. The transverse guide rails (11) are two parallel ones; the drive mechanism (10) includes a transverse lead screw (12) rotatably connected to the transverse slider (15), and the transverse slider (15) is provided with a thread matching the transverse lead screw (12); the transmission end of the transverse lead screw (12) is fixedly connected to the reduction motor, and the transverse lead screw (12) is located between the two transverse guide rails (11). The second drive mechanism (20) includes a bevel gear servo reducer (37) fixed to the clamping bracket (22). The upper and lower reduction output ends of the bevel gear servo reducer (37) are respectively connected to a vertical lead screw (36). The other end of each vertical lead screw (36) is rotatably connected to a bearing seat (39). The paired bearing seats (39) are symmetrically fixed to the upper and lower parts of the clamping bracket (22). After the vertical lead screw (36) passes through the horizontal connecting plate (34), the horizontal connecting plate (34) is rotatably connected to the vertical lead screw (36). The axial clamping mechanism (3) also includes a support rod (35); the chuck (31) is an L-shaped plate with a vertical plate and a horizontal plate fixedly connected. The vertical plate is provided with an arc groove (313), and the horizontal plate has a reserved through hole (312). One end of the support rod (35) is fixedly connected to the through hole (312) of the bottom chuck (31), and after being close to the arc groove (313), it passes through the through hole (312) of the upper chuck (31). The end face of the cross plate of the clamp (31) is a slope (311), and the slopes (311) of the two clamps (31) are inclined inward. Two vertical sliders (38) connected in series are fixed on the base plate (33); a reinforcing column (23) is also fixed obliquely between the base plate (21) and the clamping bracket (22).

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