Wheel body clamping device and processing device

Abstract

The embodiment of the present invention relates to the field of mechanical processing technology, and discloses a wheel body clamping device and a processing device, wherein the wheel body clamping device includes a clamping body, a clamping assembly, a first pull rod, a chuck, and a second pull rod. The clamping assembly is slidably connected to the clamping body, and the clamping assembly includes a pressure plate. The first pull rod is slidably connected to the clamping body, and the first pull rod is connected to the clamping assembly to drive the clamping assembly to move axially along the first pull rod. The chuck is slidably connected to the clamping body, and the chuck is provided with a claw and a mating surface. The second pull rod is slidably connected to the clamping body, and the axial directions of the second pull rod and the first pull rod are the same. The end of the second pull rod can slide along the mating surface, and the mating surface shrinks in a direction away from the clamping body to drive the chuck to move radially along the second pull rod. The first pull rod and the second pull rod enable the wheel body to realize a multi-directional fixed clamping method, thereby improving the stability of the wheel body during clamping and processing, and improving the processing accuracy, cutting depth, and processing efficiency.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of mechanical processing technology, and in particular to a wheel body clamping device and a processing device. Background Art

[0002] The wheel body is an important component of engineering machinery. The wheel body can be set at the end of the crawler on the hydraulic excavator. The main function of the wheel body is to drive the crawler forward. The characteristics of this type of wheel body are large outer diameter and small inner diameter. In the related technology, when processing the wheel body, the inner hole of the wheel body is directly tightened for processing. Since the inner hole of the wheel body is small, the tightening torque is small, the workpiece is prone to slipping, and the processing accuracy cannot be guaranteed. In order to avoid slipping, it is necessary to reduce the cutting depth of the processing, thereby reducing the cutting amount, resulting in reduced processing efficiency. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a wheel body clamping device.

[0005] A second aspect of the present invention provides a processing device.

[0006] In view of this, according to the first aspect of the technical solution of the present application, a wheel body clamping device is proposed, and the wheel body clamping device includes: a clamping body, a clamping assembly, a first pull rod, a chuck and a second pull rod. The clamping assembly is slidably connected to the clamping body, and the clamping assembly includes a pressure plate. The first pull rod is slidably connected to the clamping body, and the first pull rod is connected to the clamping assembly to drive the clamping assembly to move axially along the first pull rod, so that the pressure plate can press the wheel body onto the clamping body. The chuck is slidably connected to the clamping body, and the chuck is provided with a claw and a mating surface. The second pull rod is slidably connected to the clamping body, and the axial directions of the second pull rod and the first pull rod are the same. The end of the second pull rod can slide along the mating surface, and the mating surface shrinks in the direction away from the clamping body to drive the chuck to move radially along the second pull rod, so that the claw can abut against the inner hole of the wheel body.

[0007] In some technical solutions provided in the present application, optionally, the wheel body clamping device also includes: a positioning block and a ventilation pipeline, the positioning block is connected to the clamping body, the supporting surface of the positioning block is used to support the end face of the wheel body, the ventilation pipeline passes through the first pull rod or the second pull rod, and the two ends of the ventilation pipeline are respectively connected to the air inlet and the supporting surface.

[0008] In some technical solutions provided in the present application, optionally, the wheel body clamping device also includes: an airtight detection device, which is used to monitor the airflow state in the ventilation duct.

[0009] In some technical solutions provided in the present application, the technical solution can be optional, wherein the clamping assembly includes: a connecting disk and a connecting shaft, the connecting disk is connected to the first pull rod, the connecting disk is slidably connected to the clamp body, the two ends of the connecting shaft are respectively connected to the connecting disk and the pressure plate, and the connecting shaft is located on the outer periphery of the wheel body.

[0010] In some technical solutions provided in the present application, the technical solution can be optionally that the wheel body clamping device also includes an axle seat, the axle seat is connected to the clamping body, a limit pin is provided on the axle seat, the connecting shaft is rotatably connected to the connecting disk, a spiral groove is provided on the side wall of the connecting shaft, the limit pin extends into the spiral groove, and when the connecting shaft moves, the limit pin drives the connecting shaft to rotate.

[0011] In some technical solutions provided in the present application, the technical solutions may optionally include an adjustment hole on the connecting disk, the adjustment hole extending radially along the first pull rod, the connecting shaft passing through the adjustment hole, and the positioning blocks are divided into multiple groups according to their lengths, and the two ends of any group of positioning blocks are respectively detachably connected to the clamp body and the connecting shaft.

[0012] In some technical solutions provided in the present application, the technical solution is optional, the jaws are divided into multiple groups according to their outer dimensions, and any group of jaws is detachably connected to the chuck.

[0013] In some technical solutions provided in the present application, the technical solution may optionally be that the wheel clamping device also includes a driving assembly, the driving assembly includes a first piston and a second piston, the first piston and the second piston are respectively connected to the first pull rod and the second pull rod, and the first pull rod is sleeved outside the second pull rod.

[0014] In some technical solutions provided in the present application, the technical solutions may optionally include: a housing, a limit plate and a stroke detection device, the first piston and the second piston are respectively slidably connected to the housing, the limit plate is connected to the first piston and / or the second piston, the stroke detection device is connected to the housing, and the stroke detection device is used to detect the position of the limit plate.

[0015] A second technical solution of the present application provides a processing device, and the processing device includes a wheel body clamping device provided by any one of the above-mentioned first technical solutions of the present application.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] The wheel body is positioned by controlling the clamping claw through the first pull rod, and the wheel body is pressed by controlling the pressure plate through the second pull rod. The preload force on the wheel body can be adjusted to enable the wheel body to be clamped in a multi-directional fixed manner, thereby improving the stability of the wheel body clamping, and further improving the stability of the wheel body during the processing, avoiding the wheel body from slipping, improving the processing accuracy and cutting depth, and thus improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 This is one of the structural schematic diagrams of a wheel body clamping device according to an embodiment of the present application;

[0020] Figure 2 One of the structural schematic diagrams of a wheel body of an embodiment provided in the present application;

[0021] Figure 3 The second structural schematic diagram of a wheel body of an embodiment provided in the present application;

[0022] Figure 4 This is a second structural schematic diagram of a wheel body clamping device according to an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of a drive assembly of an embodiment provided in the present application.

[0024] in, Figures 1 to 5 The corresponding relationship between the reference numerals and the component names is as follows:

[0025] 100 clamping body, 200 clamping assembly, 210 pressure plate, 220 connecting plate, 221 adjusting hole, 230 connecting shaft, 231 spiral groove, 300 first pull rod, 400 chuck, 410 clamping claw, 420 matching surface, 500 second pull rod, 600 positioning block, 610 supporting surface, 700 ventilation pipeline, 800 shaft seat, 810 limiting pin, 900 driving assembly, 910 first piston, 920 second piston, 930 housing, 940 limiting plate, 950 stroke detection device, 960 air inlet, 20 wheel body, 21 inner hole. DETAILED DESCRIPTION

[0026] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0027] The first embodiment of the present application provides a wheel body clamping device, such as Figure 1 , Figure 2 and Figure 3As shown, the wheel body clamping device includes: a clamp body 100, a clamping assembly 200, a first pull rod 300, a chuck 400 and a second pull rod 500. The clamping assembly 200 is slidably connected to the clamp body 100, and the clamping assembly 200 includes a pressing plate 210. The first pull rod 300 is slidably connected to the clamp body 100, and the first pull rod 300 is connected to the clamping assembly 200 to drive the clamping assembly 200 to move along the axial direction of the first pull rod 300, so that the pressing plate 210 can press the wheel body 20 on the clamp body 100. The chuck 400 is slidably connected to the clamp body 100, and a clamping claw 410 and a mating surface 420 are provided on the chuck 400. The second pull rod 500 is slidably connected to the clamp body 100. The axial directions of the second pull rod 500 and the first pull rod 300 are the same. The end of the second pull rod 500 can slide along the mating surface 420. The mating surface 420 shrinks in the direction away from the clamp body 100 to drive the chuck 400 to move radially along the second pull rod 500 so that the claw 410 can abut the inner hole 21 of the wheel body 20.

[0028] In this embodiment, the second rod 500 and the first rod 300 have the same axial and radial directions. Figure 1 The Y-position arrow indicates the axial direction of the first rod 300 and the second rod 500, and the X-position arrow indicates the radial direction of the first rod 300 and the second rod 500. The first rod 300 and the second rod 500 can reciprocate along the axial direction, so that the first rod 300 and the second rod 500 slide up and down relative to the clamp body 100.

[0029] The clamping assembly 200 can slide axially relative to the clamping body 100, and a pressing plate 210 is provided at the top of the clamping assembly 200. The first pull rod 300 is connected to the clamping assembly 200, so that the first pull rod 300 can drive the pressing plate 210 on the clamping assembly 200 to move up and down. When the first pull rod 300 moves upward, the pressing plate 210 is separated from the wheel body 20, which facilitates the wheel body 20 to be moved out of the wheel body clamping device; when the first pull rod 300 moves downward, the pressing plate 210 abuts against the upper end surface of the wheel body 20, pressing the wheel body 20 on the clamping body 100 to clamp the wheel body 20.

[0030] The chuck 400 can slide radially relative to the clamp body 100. The chuck 400 is located above the clamp body 100, and a claw 410 is provided at the top of the chuck 400. The chuck 400 is provided with a mating surface 420 inclined to the axis of the second pull rod 500. The mating surface 420 shrinks in a direction away from the clamp body 100, so that the bottom of the mating surface 420 expands toward the periphery, that is, on a vertical section taken along the axis of the second pull rod 500, the distance between the upper end of the mating surface 420 and the axis of the second pull rod 500 is smaller than the distance between the lower end and the axis of the second pull rod 500. When the second pull rod 500 moves upward, after the end of the second pull rod 500 abuts against the mating surface 420, it can continue to slide upward along the mating surface 420, thereby driving the chuck 400 to move radially toward the periphery of the second pull rod 500, so that the claw 410 can abut against the inner hole 21 of the wheel body 20 to position the wheel body 20. When the second pull rod 500 moves downward, the end of the second pull rod 500 is separated from the matching surface 420, and the chuck 400 retracts radially inward, so that the claws 410 are separated from the wheel body 20, making it easier to move the wheel body 20 out.

[0031] Exemplarily, the pressing plate 210 can be located at the periphery of the wheel body 20, and the claw 410 can be located at the center of the wheel body 20. The number of the pressing plate 210 and the claw 410 can be multiple, and the multiple pressing plates 210 and / or the multiple claws 410 are evenly distributed along the circumference. The number of the pressing plates 210 or the claws 410 can be three, four or five.

[0032] The wheel body 20 is positioned by controlling the claw 410 through the first pull rod 300, and the wheel body 20 is pressed by controlling the pressure plate 210 through the second pull rod 500. The preload force on the wheel body 20 can be adjusted to enable the wheel body 20 to be clamped in a multi-directional fixed manner, thereby improving the stability of the clamping of the wheel body 20, and further improving the stability of the wheel body 20 during the processing, avoiding the wheel body 20 from slipping, improving the processing accuracy and cutting depth, and further improving the processing efficiency.

[0033] In some embodiments provided in this application, Figure 1 As shown, optionally, the wheel body clamping device also includes: a positioning block 600 and a ventilation pipe 700, the positioning block 600 is connected to the clamping body 100, the support surface 610 of the positioning block 600 is used to support the end face of the wheel body 20, the ventilation pipe 700 passes through the first pull rod 300 or the second pull rod 500, and the two ends of the ventilation pipe 700 are respectively connected to the air inlet 960 and the support surface 610.

[0034] In this embodiment, the positioning block 600 is located above the clamp body 100 , and the upper end surface of the positioning block 600 is a supporting surface 610 , which abuts against the lower end surface of the wheel body 20 to axially support the wheel body 20 .

[0035] After passing through the first tie rod 300 or the second tie rod 500, the ventilation line 700 passes through the center of the chuck 400 and extends to the support surface 610. The two ends of the ventilation line 700 are respectively connected with the air inlet 960 and the support surface 610. Gas can be input into the ventilation line 700 through the air inlet 960, and the gas can flow out on the support surface 610 after passing through the ventilation line 700. When the wheel body 20 is placed on the positioning block 600, the end face of the wheel body 20 abuts against the support surface 610, the air outlet end of the ventilation line 700 is closed, and the gas in the ventilation line 700 stops flowing; when the wheel body 20 leaves the positioning block 600, the air outlet end of the ventilation line 700 remains unobstructed, and the gas in the ventilation line 700 can continue to flow. The closed and unobstructed states of the ventilation line 700 can be used to provide feedback on the state of the wheel body 20 relative to the positioning block 600, thereby facilitating the understanding of the placement and removal operation states of the wheel body 20.

[0036] In some embodiments provided in the present application, optionally, the wheel body clamping device further includes: an airtight detection device, the airtight detection device being used to monitor the airflow state in the ventilation duct 700 .

[0037] In this embodiment, the airflow state in the ventilation duct 700 can be monitored by the airtight detection device, and the placement state of the wheel body 20 relative to the positioning block 600 can be determined by the airflow state, thereby controlling the progress of the clamping operation of the wheel body 20, ensuring that the wheel body 20 is placed stably before performing subsequent clamping operations, thereby improving the accuracy and safety of the clamping of the wheel body 20.

[0038] Exemplarily, the airtight detection device can monitor the flow rate or speed of the gas in the ventilation pipeline 700, and the airtight detection device can be a flow rate sensor or an air volume sensor. The wheel body clamping device also includes a control device, and the airtight detection device is connected to the control device and can send an airtight detection signal to the control device. When the flow rate or speed of the gas is less than or equal to a predetermined threshold, the airtight detection signal shows normal, and the wheel body clamping device performs the next clamping operation; when the flow rate or speed of the gas is greater than the predetermined threshold, the airtight detection signal shows abnormality, and the control device controls the wheel body clamping device to stop running and sends an alarm signal.

[0039] In some embodiments provided in this application, Figure 1 and Figure 4 As shown, optionally, the clamping assembly 200 includes: a connecting disk 220 and a connecting shaft 230, the connecting disk 220 is connected to the first pull rod 300, the connecting disk 220 is slidably connected to the clamp body 100, the two ends of the connecting shaft 230 are respectively connected to the connecting disk 220 and the pressure plate 210, and the connecting shaft 230 is located on the periphery of the wheel body 20.

[0040] In this embodiment, the connecting disk 220 is connected to the top of the first pull rod 300, and the connecting disk 220 can slide up and down in the axial direction relative to the clamp body 100. The bottom end of the connecting shaft 230 is connected to the connecting disk 220, and the top end of the connecting shaft 230 is connected to the pressing plate 210. The connecting shaft 230 is located at the outer periphery of the connecting disk 220 and extends in the axial direction. When the first pull rod 300 moves up and down in the axial direction, the power is transmitted radially outward to the connecting shaft 230 through the connecting disk 220, and then transmitted axially upward to the pressing plate 210 through the connecting shaft 230, thereby driving the pressing plate 210 to press the outer periphery of the wheel body 20 to fix the circumference of the wheel body 20.

[0041] Exemplarily, the clamping assembly 200 also includes a connecting sleeve, which is sleeved on the top end of the first pull rod 300. The top of the connecting sleeve extends radially out of the first pull rod 300. The connecting sleeve passes through the connecting disk 220 and is connected to the connecting disk 220 by bolts at the top, thereby improving the convenience and stability of the installation connection between the first pull rod 300 and the connecting disk 220.

[0042] In some embodiments provided in this application, Figure 1 and Figure 4 As shown, optionally, the wheel body clamping device also includes an axle seat 800, which is connected to the clamping body 100. A limit pin 810 is provided on the axle seat 800. The connecting shaft 230 is rotatably connected to the connecting disk 220. A spiral groove 231 is provided on the side wall of the connecting shaft 230. The limit pin 810 extends into the spiral groove 231. When the connecting shaft 230 moves, the limit pin 810 drives the connecting shaft 230 to rotate.

[0043] In this embodiment, the shaft seat 800 is located at the periphery of the clamp body 100 and is arranged corresponding to the connecting shaft 230. The connecting shaft 230 passes through the connecting disk 220 and is rotatably connected to the connecting disk 220. A spiral groove 231 is provided on the side wall of the connecting shaft 230. The rotation axis of the spiral groove 231 is the same as the axis of the first pull rod 300. The stop pin 810 on the shaft seat 800 extends into the spiral groove 231 and can cooperate with the spiral groove 231. When the first pull rod 300 is extended and retracted up and down along the axial direction, the connecting shaft 230 moves with the first pull rod 300, and the spiral groove 231 moves relative to the stop pin 810. The stop pin 810 drives the connecting shaft 230 to rotate along the rotation angle of the spiral groove 231 by engaging with the spiral groove 231, thereby causing the pressing plate 210 to rotate with the connecting shaft 230 to avoid the manipulator, so as to facilitate the manipulator to place and remove the wheel body 20.

[0044] Exemplarily, the rotation angle of the connecting shaft 230 may be 90 degrees.

[0045] In some embodiments provided in this application, Figure 1 and Figure 4As shown, optionally, an adjustment hole 221 is provided on the connecting disk 220, and the adjustment hole 221 extends radially along the first pull rod 300. The connecting shaft 230 passes through the adjustment hole 221, and the positioning blocks 600 are divided into multiple groups according to their lengths. The two ends of any group of positioning blocks 600 are respectively detachably connected to the clamp body 100 and the connecting shaft 230.

[0046] In this embodiment, the connecting plate 220 is provided with an adjustment hole 221 along the radial direction of the first pull rod 300, the bottom of the connecting shaft 230 passes through the adjustment hole 221, the two ends of the positioning block 600 are respectively connected to the clamp body 100 and the connecting shaft 230, and the positioning block 600 is divided into multiple groups according to the length. Figure 1 Where L is the length of the positioning block 600. Figure 3 R2 is the outer diameter of the wheel body 20 , and the length of any set of positioning blocks 600 matches the wheel body 20 with different outer diameter ranges.

[0047] When clamping wheel bodies 20 with different outer diameters, by installing positioning blocks 600 of different lengths, the position of the connecting shaft 230 in the adjustment hole 221 can be adjusted to adjust the radial distance of the connecting shaft 230 relative to the center of the connecting disk 220, thereby adjusting the circumferential pressing position of the pressure plate 210 on the wheel body 20, so that the pressure plate 210 can be matched with wheel bodies 20 with different outer diameters, thereby improving the adaptability of the pressure plate 210 and improving the applicability of the wheel body clamping device.

[0048] Exemplarily, a contraction portion is provided at the bottom end of the connecting shaft 230, and the outer wall of the contraction portion contracts inward along the radial direction of the connecting shaft 230. A spacing is provided between the bottom wall of the contraction portion and the bottom wall of the connecting shaft 230, so that the bottom end of the connecting shaft 230 forms an I-shaped structure. The contraction portion is provided in the adjustment hole 221 and can move in the adjustment hole 221.

[0049] In some embodiments provided in the present application, optionally, the clamping jaws 410 are divided into multiple groups according to their external dimensions, and any group of the clamping jaws 410 is detachably connected to the chuck 400 .

[0050] In this embodiment, the claws 410 are divided into multiple groups according to their outer dimensions. The outer dimensions of the claws 410 match the inner diameter of the wheel body 20. Figure 3 R1 is the inner diameter of the wheel body 20, and any set of clamping claws 410 is detachably connected to the chuck 400. When clamping wheels 20 with different inner diameters, by installing clamping claws 410 of different sizes, the positioning position of the clamping claws 410 on the wheel body 20 can be adjusted, so that the clamping claws 410 can match the wheels 20 with different inner diameters, improve the adaptability of the clamping claws 410, and improve the application range of the wheel body clamping device.

[0051] In some embodiments provided in this application, Figure 1As shown, optionally, the wheel clamping device also includes a driving assembly 900, and the driving assembly 900 includes a first piston 910 and a second piston 920, and the first piston 910 and the second piston 920 are respectively connected to the first tie rod 300 and the second tie rod 500, and the first tie rod 300 is sleeved outside the second tie rod 500.

[0052] In this embodiment, the driving assembly 900 is located at the ends of the first tie rod 300 and the second tie rod 500, and the first piston 910 and the second piston 920 are respectively connected to the ends of the first tie rod 300 and the second tie rod 500. The driving assembly 900 at the ends can control the first tie rod 300 and the second tie rod 500 respectively, so that the first tie rod 300 and the second tie rod 500 can act independently without interfering with each other. In addition, the first tie rod 300 is sleeved outside the second tie rod 500, which improves the structural strength of the first tie rod 300 and the second tie rod 500 and improves the compactness of the wheel body clamping device structure.

[0053] For example, the first pull rod 300 passes through the processing device, and the driving assembly 900 is located on one side of the processing device, which improves the convenience and stability of the wheel body clamping device. The driving assembly 900 can be a cylinder assembly, and the air inlet 960 is provided on the driving assembly 900.

[0054] In some embodiments provided in this application, Figure 5 As shown, optionally, the drive assembly 900 also includes: a shell 930, a limit plate 940 and a stroke detection device 950, the first piston 910 and the second piston 920 are respectively slidably connected to the shell 930, the limit plate 940 is connected to the first piston 910 and / or the second piston 920, the stroke detection device 950 is connected to the shell 930, and the stroke detection device 950 is used to detect the position of the limit plate 940.

[0055] In this embodiment, the first piston 910 and the second piston 920 can slide relative to the housing 930, the limit plate 940 is arranged at the tail end of the first piston 910 and / or the second piston 920, and the stroke detection device 950 is arranged on the housing 930. The position of the limit plate 940 can be detected by the stroke detection device 950, and then the axial position of the first piston 910 and / or the second piston 920 can be monitored, and the telescopic position of the first pull rod 300 and / or the second pull rod 500 can be determined. The positioning and clamping state of the wheel clamping device can be judged by the position of the pull rod, and then it can be judged whether the driving assembly 900 is driven into place.

[0056] Specifically, the stroke detection device 950 is respectively a first stroke detection device 950 and a second stroke detection device 950. The first stroke detection device 950 is used to monitor the position of the limit plate 940 provided on the first piston 910. The position of the first stroke detection device 950 matches the pressing distance required by the pressing plate 210. The second stroke detection device 950 is used to monitor the position of the limit plate 940 provided on the second piston 920. The position of the second stroke detection device 950 matches the pressing distance required by the claw 410.

[0057] Exemplarily, the stroke detection device 950 is connected to the control device and can transmit a position signal of the limit plate 940 to the control device, and the signal can be used to process the wheel body 20 through the post-processing device. The stroke detection device 950 can be a stroke switch. The number of the stroke detection devices 950 can be two, and the two stroke detection devices 950 are arranged at intervals along the axial direction, and the stroke detection device 950 is arranged at the extreme position of the movement of the limit plate 940.

[0058] A second aspect embodiment of the present application provides a processing device, which includes the wheel body clamping device provided by any one of the first aspect embodiments of the present application.

[0059] In this embodiment, the processing device can process the wheel body 20. It should be noted that the processing device includes the wheel body clamping device provided by any one of the above embodiments of the present application, and thus has all the beneficial technical effects of the above wheel body clamping device. To avoid repetition, they are not described here.

[0060] In a specific embodiment, the wheel body clamping device is equipped with a special oil cylinder (i.e., driving component 900), double tie rods and a special composite chuck 400 to realize the positioning and clamping of the wheel body 20. The special oil cylinder adopts a double-piston central air outlet structure. The second piston 920 together with the second tie rod 500 controls the centering mechanism in the middle of the composite chuck 400 to center the workpiece (i.e., wheel body 20). The first piston 910 together with the first tie rod 300 controls the rotary clamping mechanism (i.e., clamping component 200) outside the composite chuck 400 to clamp the workpiece. The rotary clamping mechanism can move along the radial direction of the chuck 400 to meet the clamping processing of workpieces with different diameters. At the same time, it is equipped with airtight detection and oil cylinder in-place detection, and the automatic processing of the wheel body 20 is realized through the feedback detection signal.

[0061] The wheel body clamping device effectively solves the drawbacks caused by the original traditional three-jaw chuck 400 clamping the inner hole 21 for processing. It clamps firmly without slipping, increases the cutting depth, and significantly improves the cutting efficiency. At the same time, the processing accuracy is also higher, and the qualified rate is improved, thereby realizing the automated mass production of the wheel body 20.

[0062] The manipulator places the wheel body 20 workpiece on the positioning block 600, and the claw 410 is in a loose state. The control device performs airtightness detection on the end face of the workpiece. The special oil cylinder is provided with an air inlet 960, and the air inlet 960 is connected to an air pipe. Air is blown into the air pipe through the air inlet 960, and the air is transmitted to the upper end face of the positioning block 600 through the center of the special oil cylinder, the center of the second pull rod 500 and the center of the special chuck 400. When the workpiece falls on the upper end face of the positioning block 600, the air path will be closed, and the closure and unobstructedness of the air path will be used to feedback whether the upper and lower workpieces are normal. When the airtightness detection signal is abnormal, the automatic line will stop immediately.

[0063] The special oil cylinder can be connected to two oil circuits, one of which controls the push and pull of the second pull rod 500. The second pull rod 500 is connected to the special chuck 400. When pushing forward, the special clamping claw 410 is controlled by the special chuck 400 to tighten the inner hole 21 of the workpiece, which plays a role in centering the workpiece. When processing workpieces of different sizes, the corresponding special clamping claw 410 is replaced. Another oil circuit of the special oil cylinder controls the first pull rod 300. The first pull rod 300 contains the entire second pull rod 500 in the hole, and moves independently without interfering with each other. The first pull rod 300 is connected to the pull sleeve. When the first pull rod 300 is pulled back, it drives the connecting disk 220 to move backward. The connecting disk 220 drives the rotating shaft to pull backward, and then drives the rotating pressure plate 210 to pull backward and press the workpiece. Among them, a spiral groove 231 is provided on the side wall of the rotating shaft. When the first pull rod 300 is pulled back, the rotating shaft and the pressure plate 210 can rotate, which is convenient for the robot to move the workpiece up and down. The rotating shaft and the pressure plate 210 can move radially along the connecting disk 220 to clamp workpieces of various sizes.

[0064] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0066] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wheel body clamping device, characterized in that: include: Clamp concrete; A clamping assembly is slidably connected to the clamp body, and the clamping assembly includes a pressing plate; A first pull rod is slidably connected to the clamp body, and the first pull rod is connected to the clamp assembly to drive the clamp assembly to move along the axial direction of the first pull rod, so that the pressure plate can press the wheel body onto the clamp body; A chuck is slidably connected to the clamp body, and the chuck is provided with a claw and a mating surface; A second pull rod is slidably connected to the clamp body, the second pull rod and the first pull rod have the same axial direction, the end of the second pull rod can slide along the matching surface, and the matching surface shrinks in a direction away from the clamp body to drive the chuck to move radially along the second pull rod, so that the claw can abut against the inner hole of the wheel body; A positioning block connected to the clamp body, wherein the supporting surface of the positioning block is used to support the end surface of the wheel body; The clamping assembly comprises: A connecting plate connected to the first pull rod, wherein the connecting plate is slidably connected to the clamp body; A connecting shaft, the two ends of which are respectively connected to the connecting disk and the pressing plate, and the connecting shaft is located at the periphery of the wheel body; The connecting disk is provided with an adjustment hole, which extends radially along the first pull rod. The connecting shaft passes through the adjustment hole. The positioning blocks are divided into multiple groups according to their lengths. The two ends of any group of positioning blocks are detachably connected to the clamp body and the connecting shaft respectively to adjust the position of the connecting shaft in the adjustment hole.

2. The wheel body clamping device according to claim 1, characterized in that: Also includes: A ventilation pipeline passes through the first pull rod or the second pull rod, and two ends of the ventilation pipeline are respectively connected to the air inlet and the support surface.

3. The wheel body clamping device according to claim 2, characterized in that: Also includes: The air tightness detection device is used to monitor the air flow state in the ventilation pipeline.

4. The wheel body clamping device according to claim 1, characterized in that: Also includes: The shaft seat is connected to the clamp body, a limit pin is provided on the shaft seat, the connecting shaft is rotatably connected to the connecting disk, a spiral groove is provided on the side wall of the connecting shaft, the limit pin extends into the spiral groove, and when the connecting shaft moves, the limit pin drives the connecting shaft to rotate.

5. The wheel body clamping device according to any one of claims 1 to 4, characterized in that: The clamping jaws are divided into multiple groups according to their external dimensions, and the clamping jaws in any group are detachably connected to the chuck.

6. The wheel body clamping device according to any one of claims 1 to 4, characterized in that: Also includes: The driving assembly includes a first piston and a second piston, wherein the first piston and the second piston are respectively connected to the first pull rod and the second pull rod, and the first pull rod is sleeved outside the second pull rod.

7. The wheel body clamping device according to claim 6, characterized in that: The drive assembly also includes: a housing, wherein the first piston and the second piston are respectively slidably connected to the housing; a limiting plate connected to the first piston and / or the second piston; A stroke detection device is connected to the housing, and the stroke detection device is used to detect the position of the limit plate.

8. A processing device, characterized in that: include: A wheel body clamping device as claimed in any one of claims 1 to 7.

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