An electric motorcycle central shaft processing device

Abstract

The present invention relates to the technical field of vehicle central shaft processing, and specifically relates to a processing device for the central shaft of an electric motorcycle, including a machine base; a fixed base; the fixed base is elastically connected with an annular clamping sleeve through a torsion spring; an inclined side top plate, a positioning fixture is arranged on the fixed base; a control device; a dynamic sawing device. The present invention drives the dynamic sawing device to move and saw through the control device, and uses the moving force to first drive the annular clamping sleeve to rotate, so as to realize the self-adaptive elastic fixed-axis clamping work of the positioning fixture on the central shaft, automatically perform the effect of centering and fixing-point clamping and positioning on the central shaft according to the size of the central shaft, reduce the problem of the pressure on the saw blade disc, improve the service life of the saw blade disc, use the structure inside the control device to reinforce the annular clamping sleeve, realize the effect of stable angle of the annular clamping sleeve, and further achieve the effect of stable clamping of the clamping plate during sawing. Then, use the moving force to drive the dynamic sawing device to perform wave-shaped sawing, and further achieve the purpose of improving the sawing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle central shaft processing, and particularly to a processing device for an electric motorcycle central shaft. Background Technique

[0002] The central shaft of a motorcycle, also known as the motorcycle swingarm shaft, is an important component on the motorcycle frame. The central shaft is located at the connection part between the motorcycle frame and the swingarm. Its main function is to connect the frame and the rear swingarm, enabling the rear swingarm to rotate around the central shaft, thereby realizing the rear suspension function of the motorcycle. When the motorcycle is traveling on an uneven road surface, the rear suspension system buffers the impact force from the ground through the rotation of the central shaft, ensuring the smoothness and comfort of riding. It is generally made of high-strength metal materials such as steel or aluminum alloy. It is usually a cylindrical shaft, and both ends are connected to the frame and the rear swingarm by bolts or other fixing methods. The diameter and length of the central shaft vary according to the model and design requirements of the motorcycle. On some high-performance motorcycles, the central shaft may adopt a more complex structure, such as having bearings or shock-absorbing devices to improve the performance of the suspension system.

[0003] Currently, during the processing of the central shaft of an electric motorcycle, sawing work is carried out on the shaft. Before sawing, the saw blade on the existing sawing machine fixes the central shaft through a fixture. Generally, the side and upper fixtures are used to move synchronously to fix the central shaft, which will cause the problem of the offset of the center point of the central shaft when fixing central shafts of different sizes. During sawing, the saw blade cuts the central shaft by moving in a side position. Generally, the height of the saw blade is in a fixed state, which will cause the saw blade to be unable to perform axis-aligned sawing for central shafts of different sizes. The eccentric sawing method will increase the sawing pressure on the saw blade, thereby affecting the service life of the saw blade. In view of this, we propose a processing device for an electric motorcycle central shaft. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a processing device for an electric motorcycle central shaft, which solves the problems raised in the above background technique. To achieve the above objectives, the present invention is realized through the following technical solutions: A processing device for an electric motorcycle central shaft, including a machine base; a fixed base, the fixed base is fixedly installed on the machine base, the fixed base is elastically connected with an annular jacket through a torsion spring, and a plurality of obliquely side top plates distributed in a circular array are fixedly connected inside the annular jacket. A positioning fixture is arranged on the fixed base; a control device, the control device is arranged on the machine base; a dynamic sawing device, the dynamic sawing device is arranged on the control device.

[0005] Preferably, the positioning fixture includes a sliding shaft, the surface of the sliding shaft is slidably connected to the inside of the fixed base, one end of the sliding shaft is fixedly connected to a clamping plate, the other end of the sliding shaft is rotatably connected to a top wheel, and a spring telescopic rod is fixedly connected between the surface of the clamping plate and the surface of the fixed base.

[0006] Preferably, the end of the annular jacket is rotatably connected to the fixed base, and the surface of the inclined side top plate is connected to the surface of the top wheel.

[0007] Preferably, the control device includes a driving motor, one end of the driving motor is installed on one side of the machine base, the output shaft of the driving motor is connected to a positioning screw, the surface of the positioning screw is threadedly connected to a moving bushing, a connecting arm rod is fixedly connected to the moving bushing, a passive plate is in contact with the surface of the connecting arm rod, and an adjusting screw is rotatably connected to the end of the moving bushing.

[0008] Preferably, the end of the positioning screw is rotatably connected to the machine base, the end of the passive plate is fixedly connected to the annular jacket, a turning handle is fixedly connected to the adjusting screw, and a limiting bushing is fixedly connected to the moving bushing.

[0009] Preferably, the control device further includes a reinforcement device, the reinforcement device includes a pressing block, a limiting frame and an arc-shaped insertion shaft, one side of the pressing block is fixedly connected to the limiting bushing, a spring telescopic tube is fixedly connected to the pressing block, a socket is elastically connected to the inside of the limiting frame through a spring, the surface of the limiting frame is fixedly connected to the surface of the fixed base, the surface of the socket is slidably connected to the inner wall of the limiting frame, and the surface of the arc-shaped insertion shaft is fixedly connected to the surface of the annular jacket.

[0010] Preferably, the dynamic sawing device includes a screw sleeve base, the inner wall of the screw sleeve base is threadedly connected to the surface of the adjusting screw, a sawing motor is installed inside the screw sleeve base, the output shaft of the sawing motor is connected to a rotating sleeve rod, the end of the rotating sleeve rod is slidably connected to a key shaft, the end of the key shaft is fixedly connected to a bevel gear one, the surface of the bevel gear one is meshed with a bevel gear two, the end of the bevel gear two is fixedly connected to a saw blade disc, the saw blade disc is rotatably connected to a telescopic seat, and a fixed seat is slidably connected to the inside of the telescopic seat.

[0011] Preferably, the surface of the fixed seat is fixedly connected to the surface of the screw sleeve base, the surface of the rotating sleeve rod is rotatably connected to the inside of the fixed seat, the surface of the key shaft is rotatably connected to the inside of the telescopic seat, a limiting sleeve is fixedly connected to the screw sleeve base, and the limiting sleeve is slidably sleeved on the limiting bushing.

[0012] Preferably, a limiting rod, both ends of the limiting rod are fixedly connected to the machine base, a fluctuating sliding seat is slidably connected to the limiting rod, a horizontal area and a fluctuating area are arranged in the fluctuating sliding seat, a positioning shaft is slidably connected to the inner wall of the fluctuating sliding seat, and the positioning shaft is fixedly connected to one side of the telescopic seat.

[0013] As can be seen from the above technical solutions, an electric motorcycle central shaft processing device provided by an embodiment of this specification has at least the following beneficial effects:

[0014] (1) In the present invention, the control device drives the overall movement of the dynamic sawing device for sawing. By using the moving force to first drive the annular jacket to rotate, the positioning fixture realizes the self-adaptive elastic fixed-axis clamping work on the central shaft, automatically performs the effect of centering and positioning the central shaft according to the size of the central shaft, reduces the problem of the pressure on the saw blade disc, improves the service life of the saw blade disc, uses the structure inside the control device to reinforce the annular jacket, realizes the effect of stable angle of the annular jacket, further achieves the effect of stable clamping of the clamping plate during sawing, and then uses the moving force to drive the dynamic sawing device to perform fluctuating sawing, further achieving the purpose of improving the sawing effect.

[0015] (2) In the present invention, through the torsion spring provided on the annular jacket, the clamping plate is in an elastic clamping state, so as to achieve the effect that the clamping plate can automatically clamp and position the central shaft according to the size of the central shaft. The elastic force of the torsion spring is greater than the gravity of the central shaft itself, so the clamping plate can position the central shaft to the axis center of the annular jacket, further achieving the effect of centering and positioning clamping of the central shaft at different sizes. The clamping plate and the corresponding sliding shaft and other structures are circularly arranged in a staggered manner on the fixed base, so that there is no size limit between the clamping plates, so the range that the clamping plate can clamp can be further increased, and the size diversity of the central shaft processing can be further increased.

[0016] (3) In the present invention, through the reinforcement device, before sawing, the moving shaft sleeve that continues to move will drive the spring telescopic tube on the extrusion block to move through the limiting shaft sleeve on it. When the spring telescopic tube contacts the socket, the spring telescopic tube drives the socket to move towards the arc-shaped insertion shaft, and realizes the fixation of the arc-shaped insertion shaft during the insertion, and then uses the arc-shaped insertion shaft to achieve the effect of secondary fixation of the annular jacket, uses the secondary reinforcement of the socket to realize the effect of stable angle of the annular jacket, and further achieves the effect of stable clamping of the clamping plate during sawing.

[0017] (4) When the saw blade disc moves for sawing in the present invention, the positioning shaft on the telescopic seat will slide into the fluctuation area of the fluctuation slide seat. Restricted by the fluctuation slide seat, the positioning shaft jitters up and down within a short range inside the fluctuation slide seat. During the jitter, the positioning shaft drives the entire saw blade disc to perform wave-shaped sawing through the telescopic seat, further achieving the purpose of improving the sawing effect. The output shaft of the sawing motor drives the bevel gear I on the key shaft to engage with the saw blade disc on the bevel gear II through the rotating sleeve rod. The saw blade disc realizes the sawing effect during high-speed rotation. The saw blade disc moves and cuts while aligning with the center of the clamping of the clamping plate, thereby achieving the effect that the sawing center is always at the center axis and the acting force, and then avoiding the sawing pressure of the saw blade being increased by the eccentric sawing method and improving the service life of the saw blade disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application:

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the internal structure of the annular jacket in the present invention;

[0021] Figure 3 is a schematic diagram of the structure at the positioning fixture in the present invention;

[0022] Figure 4 is a schematic diagram of the control device structure in the present invention;

[0023] Figure 5 is a schematic diagram of the structure at the moving shaft sleeve in the present invention;

[0024] Figure 6 is a schematic diagram of the structure at the limit frame in the present invention;

[0025] Figure 7 is a schematic diagram of the dynamic sawing device structure in the present invention;

[0026] Figure 8 is a schematic diagram of the structure at the positioning shaft in the present invention;

[0027] Figure 9 is a schematic diagram of the structure at the fluctuation slide seat in the present invention;

[0028] Figure 10 is a schematic diagram of the fixed base structure in the present invention.

[0029] In the figure: 1, machine base; 2, fixed base; 3, annular jacket; 4, inclined side top plate; 5, positioning fixture; 51, sliding shaft; 52, clamping plate; 53, top wheel; 54, spring telescopic rod; 6, control device; 61, driving motor; 62, positioning screw; 63, moving bushing; 64, connecting arm rod; 65, passive plate; 66, adjusting screw; 67, limiting bushing; 68, reinforcement device; 681, extrusion block; 682, spring telescopic tube; 683, limiting frame; 684, socket; 685, arc-shaped insertion shaft; 7, dynamic sawing device; 71, screw sleeve base; 72, sawing motor; 73, rotating sleeve rod; 74, key shaft; 75, bevel gear one; 76, bevel gear two; 77, saw blade disc; 78, telescopic seat; 781, limiting sleeve; 79, fixed seat; 710, positioning shaft; 711, fluctuating sliding seat; 712, limiting rod. Detailed implementation mode

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the protection scope of the present invention.

[0031] Embodiment 1

[0032] Please refer to Figure 1 - Figure 10 As shown, a central shaft processing device for an electric motorcycle includes a machine base 1; a fixed base 2, the fixed base 2 is fixedly installed on the machine base 1, the fixed base 2 is elastically connected with an annular jacket 3 through a torsion spring, the end of the annular jacket 3 is rotatably connected to the fixed base 2, a plurality of obliquely side top plates 4 distributed in a circular array are fixedly connected inside the annular jacket 3, and a positioning fixture 5 is arranged on the fixed base 2; a control device 6, the control device 6 is arranged on the machine base 1; a dynamic sawing device 7, the dynamic sawing device 7 is arranged on the control device 6.

[0033] In this embodiment, the positioning fixture 5 includes a sliding shaft 51, the surface of the sliding shaft 51 is slidably connected to the inside of the fixed base 2 (as Figure 3 and Figure 10 shown), one end of the sliding shaft 51 is fixedly connected with a clamping plate 52, the other end of the sliding shaft 51 is rotatably connected with a top wheel 53, the number and position of the sliding shaft 51, the clamping plate 52 and the top wheel 53 correspond to those of the obliquely side top plates 4, a spring telescopic rod 54 is fixedly connected between the surface of the clamping plate 52 and the surface of the fixed base 2, the spring telescopic rod 54 is composed of two telescopic rods, and a spring is connected between the two rods for linearly limiting the clamping plate 52 and providing elastic power for the clamping plate 52. In the initial state (that is Figure 1As shown), the spring telescopic rod 54 is in a retracted state, and the surface of the top wheel 53 is connected to the surface of the inclined side top plate 4.

[0034] In the initial state, the annular jacket 3 is fixed by the structure inside the control device 6. At this time, the torsion spring on the annular jacket 3 is in a compressed state. When the annular jacket 3 loses its limit, the elastic force of the torsion spring provides the annular jacket 3 with rotational power. During the rotation, the annular jacket 3 squeezes the top wheel 53 through the multiple inclined side top plates 4 distributed in the internal circular array. Since the sliding shaft 51 is restricted by the spring telescopic rod 54 and can only move linearly on the inner wall of the circular groove of the fixed base 2, the top wheel 53 will transmit power to the clamping plate 52 on the sliding shaft 51 after being compressed. The clamping plates 52 corresponding to the inclined side top plates 4 distributed in the circular array move synchronously toward the axis of the annular jacket 3. During the movement, the clamping plates 52 realize the rotation of the inner wall of the circular groove. The effect of clamping and positioning the central axis is achieved. Due to the torsion spring arranged on the annular sleeve 3, the clamping plate 52 is in an elastic clamping state, so that the clamping plate 52 can automatically clamp and position the central axis according to the size of the central axis. The elastic force of the torsion spring is greater than the gravity of the central axis itself, so the clamping plate 52 can position the central axis to the axis center of the annular sleeve 3, and further achieve the effect of axial fixed-point positioning and clamping of central axes of different sizes. The clamping plate 52 and the corresponding sliding shaft 51 and other structures are distributed in a circular array on the fixed base 2 in an offset manner, so that there is no size restriction between each clamping plate 52, so that the clamping range of the clamping plate 52 can be further increased, and the size diversity of the central axis processing can be further increased.

[0035] Furthermore, the control device 6 includes an active motor 61, one end of which is installed on one side of the machine base 1, and the output shaft of the active motor 61 is connected to a positioning screw 62, the end of which is rotatably connected to the machine base 1, the surface of the positioning screw 62 is threadedly connected to a movable sleeve 63, the movable sleeve 63 is fixedly connected to a connecting arm 64, the surface of the connecting arm 64 contacts a passive plate 65, the end of the passive plate 65 is fixedly connected to the annular sleeve 3, the end of the movable sleeve 63 is rotatably connected to an adjusting screw 66, the movable sleeve 63 is fixedly connected to a limiting sleeve 67, the number of the positioning screws 62 is set to two, and the two positioning screws 62 are symmetrically distributed with each other, and the ends of the two positioning screws 62 are transmission connected through a transmission device (such as Figure 1As shown, it is used to increase the overall stability of the dynamic sawing device 7. By starting the driving motor 61, the output shaft of the driving motor 61 drives the positioning screw 62 to rotate, achieving the effect of driving the overall movement of the moving bushing 63. The moving bushing 63 moves towards the axis of the annular jacket 3. During the movement, the moving bushing 63 drives the connecting rod 64 to move synchronously. The connecting rod 64 positions and restricts the passive plate 65 in the initial state. When the connecting rod 64 moves away from the passive plate 65, the passive plate 65 rotates back to its original position through the elastic force of the torsion spring on the annular jacket 3, and the annular jacket 3 rotates counterclockwise as a whole. During the rotation, the annular jacket 3 positions the central shaft through the positioning fixture 5.

[0036] Furthermore, the control device 6 further includes a reinforcement device 68. The reinforcement device 68 includes an extrusion block 681, a limit frame 683, and an arc-shaped insertion shaft 685. One side of the extrusion block 681 is fixedly connected to the limit bushing 67. A spring telescopic tube 682 is fixedly connected to the extrusion block 681. The spring telescopic tube 682 is composed of two telescopic tubes, and springs are arranged in the two tubes. A socket 684 is elastically connected inside the limit frame 683 through a spring. The elastic force of the spring in the spring telescopic tube 682 is greater than the elastic force of the spring on the socket 684, thus ensuring that the spring telescopic tube 682 can drive the socket 684 to move during the movement. The surface of the limit frame 683 is fixedly connected to the surface of the fixed base 2. The surface of the socket 684 is slidably connected to the inner wall of the limit frame 683. The surface of the arc-shaped insertion shaft 685 is fixedly connected to the surface of the annular jacket 3. Multiple insertion shafts are arranged on the arc-shaped insertion shaft 685 in a circular array. The annular jacket 3 can rotate at different angles according to central shafts of different sizes. The rotation angle of the annular jacket 3 corresponds to the position and quantity of the insertion shaft distribution. Assuming the central shaft sizes are X1, X2, and X3 respectively, the rotation angle values of the annular jacket 3 are Y1, Y2, and Y3 respectively. At this angle, the angles of the insertion shaft distribution at the arc-shaped insertion shaft 685 on the annular jacket 3 are also Y1, Y2, and Y3. The socket 684 can insert and fix the corresponding insertion shafts at the angles of Y1, Y2, and Y3.

[0037] Before the dynamic sawing device 7 performs sawing, the continuously moving moving shaft sleeve 63 drives the spring telescopic tube 682 on the extrusion block 681 to move through the limiting shaft sleeve 67 thereon. When the spring telescopic tube 682 contacts the socket 684, the spring telescopic tube 682 drives the socket 684 to move towards the arc-shaped insertion shaft 685 until the socket 684 is inserted into the insertion shaft on the arc-shaped insertion shaft 685. Since the socket 684 is restricted by the limiting frame 683 and can only move linearly at this time, the socket 684 will fix the arc-shaped insertion shaft 685 during the insertion process, and then use the arc-shaped insertion shaft 685 to achieve the effect of secondary fixation of the annular jacket 3. Since the previous annular jacket 3 elastically positions multiple clamping plates 52 by using the elastic force of the torsion spring, when the central shaft is sawed during the elastic positioning, the strong cutting force will cause the central shaft to be misaligned, thus affecting the processing accuracy. Therefore, by using the secondary reinforcement of the socket 684, the effect of stable angle of the annular jacket 3 is achieved, and further the effect of stable clamping of the clamping plate 52 during sawing is achieved. At the same time, by setting the telescopic spring telescopic tube 682, while ensuring the movement of the socket 684, during the subsequent movement of the limiting shaft sleeve 67, automatic yielding can be achieved, so as to ensure that when the dynamic sawing device 7 saws the central shaft, the spring telescopic tube 682 always has the effect of telescopically positioning the socket 684.

[0038] Embodiment 1

[0039] Based on Embodiment 1, a central shaft processing device for an electric motorcycle is provided. Please refer to Figure 1 - Figure 9 As shown in the figure, the dynamic sawing device 7 includes a screw sleeve base 71, the inner wall of the screw sleeve base 71 is threadedly connected to the surface of the adjusting screw 66, a sawing motor 72 is installed inside the screw sleeve base 71, the output shaft of the sawing motor 72 is connected to a rotating sleeve rod 73, the end of the rotating sleeve rod 73 is slidably connected to a key shaft 74. The setting of the rotating sleeve rod 73 and the key shaft 74 enables the rotating sleeve rod 73 and the key shaft 74 to perform telescopic movement while maintaining the transmission effect of force. The end of the key shaft 74 is fixedly connected to a bevel gear one 75, the surface of the bevel gear one 75 is engaged with a bevel gear two 76, the end of the bevel gear two 76 is fixedly connected to a saw blade disc 77, the end of the saw blade disc 77 is rotatably connected inside a telescopic seat 78, and a fixed seat 79 is slidably connected inside the top of the telescopic seat 78 (as Figure 7As shown, the fixed seat 79 is fixed on the screw sleeve base 71. The rotating sleeve rod 73 rotates within the fixed seat 79, and the key shaft 74 rotates within the telescopic seat 78. The telescopic seat 78 is slidably connected to the fixed seat 79, and the key shaft 74 is slidably connected within the rotating sleeve rod 73. The output shaft of the sawing motor 72 drives the bevel gear one 75 on the key shaft 74 to engage with the saw blade disc 77 on the bevel gear two 76 through the rotating sleeve rod 73. The saw blade disc 77 achieves the sawing effect during high-speed rotation. The saw blade disc 77 moves and cuts at the center axis clamped by the clamping plate 52, so as to achieve the effect that the center of the sawing force is always at the center axis, thereby avoiding the problem that the eccentric sawing method increases the sawing pressure on the saw blade, which affects the service life of the saw blade, achieving the problem of reducing the pressure on the saw blade disc 77 and improving the service life of the saw blade disc 77.

[0040] In addition, the surface of the fixed seat 79 is fixedly connected to the surface of the screw sleeve base 71. The surface of the rotating sleeve rod 73 is rotatably connected inside the fixed seat 79, and the surface of the key shaft 74 is rotatably connected inside the telescopic seat 78. A limit sleeve 781 is fixedly connected to the screw sleeve base 71. The limit sleeve 781 is slidably sleeved on the limit shaft sleeve 67. By setting the limit sleeve 781 to slide on the limit shaft sleeve 67, the overall position of the screw sleeve base 71 is limited. When the position of the saw blade disc 77 needs to be adjusted, the operator rotates the turning handle to drive the adjusting screw 66 to rotate. When the adjusting screw 66 rotates, it can drive the entire saw blade disc 77 to adjust its position through the screw sleeve base 71.

[0041] In addition, the dynamic sawing device 7 further includes a limit rod 712. Both ends of the limit rod 712 are fixedly connected to the machine base 1. A fluctuating sliding seat 711 is slidably connected to the limit rod 712. A horizontal area and a fluctuating area are provided inside the fluctuating sliding seat 711. A positioning shaft 710 is slidably connected to the inner wall of the fluctuating sliding seat 711. The positioning shaft 710 is fixedly connected to one side of the telescopic seat 78. When the saw blade disc 77 moves for sawing, the positioning shaft 710 on the telescopic seat 78 will slide into the fluctuating area of the fluctuating sliding seat 711. Restricted by the fluctuating sliding seat 711, the positioning shaft 710 jitters up and down within a short range inside the fluctuating sliding seat 711. During the jitter, the positioning shaft 710 drives the entire saw blade disc 77 to perform fluctuating sawing through the telescopic seat 78, further achieving the purpose of improving the sawing effect.

[0042] When the central axis processing device of an electric motorcycle of the present invention is in use, the central axis to be processed is placed in the circular groove inside the fixed base 2. By starting the driving motor 61, the output shaft of the driving motor 61 drives the positioning screw 62 to rotate to achieve the effect of driving the overall movement of the moving shaft sleeve 63. The moving shaft sleeve 63 moves towards the axis of the annular jacket 3. During the movement, the moving shaft sleeve 63 drives the connecting arm rod 64 to move synchronously. The connecting arm rod 64 positions and restricts the passive plate 65 in the initial state. When the connecting arm rod 64 moves away from the passive plate 65, the passive plate 65 rotates to reset through the elastic force of the torsion spring on the annular jacket 3. The overall annular jacket 3 rotates counterclockwise. During the rotation, the annular jacket 3 presses the top wheel 53 through a plurality of obliquely side top plates 4 distributed in a circular array inside. Since the sliding shaft 51 is restricted by the spring telescopic rod 54 and can only move linearly on the inner wall of the circular groove of the fixed base 2, the top wheel 53 will transmit the power to the clamping plate 52 on the sliding shaft 51 after being pressed. A plurality of clamping plates 52 distributed in a circular array corresponding to the obliquely side top plates 4 move towards the axis of the annular jacket 3 synchronously. During the movement, the clamping plate 52 achieves the effect of clamping and positioning the central axis in the circular groove. At the same time, due to the torsion spring provided on the annular jacket 3, the clamping plate 52 is in an elastic clamping state, so as to achieve the effect that the clamping plate 52 can automatically clamp and position the central axis according to the size of the central axis. The elastic force of the torsion spring is greater than the gravity of the central axis itself, so the clamping plate 52 can position the central axis to the axis of the annular jacket 3, further achieving the effect of axially fixed-point positioning and clamping of central axes at different sizes. The clamping plate 52 and the corresponding sliding shaft 51 and other structures are distributed in a circular array in a staggered manner on the fixed base 2, so that there is no size limit between the clamping plates 52, so that the range that the clamping plate 52 can clamp can be further increased, and the size diversity of central axis processing can be further increased. Before the saw blade disc 77 saws, the continuously moving moving shaft sleeve 63 will drive the spring telescopic tube 682 on the extrusion block 681 to move through the limiting sleeve 67 thereon. When the spring telescopic tube 682 contacts the socket 684, the spring telescopic tube 682 drives the socket 684 to move towards the arc-shaped insertion shaft 685 until the socket 684 is inserted into the shaft on the arc-shaped insertion shaft 685. Since the socket 684 is restricted by the limiting frame 683 and can only move linearly at this time, the socket 684 will fix the arc-shaped insertion shaft 685 during the insertion, and then use the arc-shaped insertion shaft 685 to achieve the effect of secondary fixation of the annular jacket 3. Since the previous annular jacket 3 elastically positions a plurality of clamping plates 52 by the elastic force of the torsion spring, when the central axis is sawed during the elastic positioning, the strong cutting force will cause the central axis to be misaligned, thus affecting the processing accuracy. Therefore, the secondary reinforcement of the socket 684 is used to achieve the effect of stable angle of the annular jacket 3, and further achieve the effect of stable clamping of the clamping plate 52 during sawing.

[0043] After the splint 52 is secondarily reinforced, the active motor 61 that continues to work drives the moving bushing 63 to continue moving. The sawing motor 72 is pre-started. The output shaft of the sawing motor 72 drives the first bevel gear 75 on the key shaft 74 to engage with the saw blade disc 77 on the second bevel gear 76 through the rotating sleeve rod 73. The saw blade disc 77 achieves the sawing effect during high-speed rotation. The saw blade disc 77 moves and cuts while aligning with the axis clamped by the splint 52, so as to achieve the effect that the sawing center is always at the center axis and the acting force, and then avoid the problem that the eccentric sawing method increases the sawing pressure of the saw blade, thus affecting the service life of the saw blade, achieving the problem of reducing the pressure on the saw blade disc 77, improving the service life of the saw blade disc 77. At the same time, when the saw blade disc 77 moves to the circular groove area, the positioning shaft 710 on the telescopic seat 78 will slide into the fluctuation area of the fluctuation sliding seat 711. Restricted by the fluctuation sliding seat 711, the positioning shaft 710 jitters up and down within a short range in the fluctuation sliding seat 711. During the jitter, the positioning shaft 710 drives the entire saw blade disc 77 to perform wave-shaped sawing through the telescopic seat 78, further achieving the purpose of improving the sawing effect.

[0044] The above embodiments are only used to illustrate the embodiments of the present invention, rather than limiting the embodiments of the present invention. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present invention. The patent protection scope of the embodiments of the present invention shall be defined by the claims.

Claims

1. An electric motorcycle middle shaft processing device, characterized in that: include Machine base; A fixed base, the fixed base is fixedly installed on the machine base, the fixed base is elastically connected to an annular jacket through a torsion spring, a plurality of oblique side top plates distributed in a circular array are fixedly connected inside the annular jacket, and a positioning fixture is arranged on the fixed base; A control device, the control device is arranged on the machine base; A dynamic sawing device, the dynamic sawing device is arranged on the control device; The control device includes an active motor, one end of which is mounted on one side of the machine base, the output shaft of the active motor is connected with a positioning screw, the surface of the positioning screw is threadedly connected with a moving sleeve, a connecting arm is fixedly connected to the moving sleeve, the surface of the connecting arm contacts a passive plate, and the end of the moving sleeve is rotatably connected with an adjusting screw; The end of the positioning screw is rotatably connected to the machine base, the end of the passive plate is fixedly connected to the annular jacket, the adjusting screw is fixedly connected to a rotating handle, and the movable sleeve is fixedly connected to a limited position sleeve; The control device also includes a reinforcement device, which includes an extrusion block, a limit frame and an arc-shaped plug shaft. One side of the extrusion block is fixedly connected to the limit shaft sleeve, and a spring telescopic tube is fixedly connected to the extrusion block. The interior of the limit frame is elastically connected to a socket through a spring. The surface of the limit frame is fixedly connected to the surface of the fixed base, the surface of the socket is slidably connected to the inner wall of the limit frame, and the surface of the arc-shaped plug shaft is fixedly connected to the surface of the annular sleeve.

2. The electric motorcycle middle shaft processing device according to claim 1, characterized in that: The positioning fixture includes a sliding shaft, the surface of the sliding shaft is slidably connected to the inside of the fixed base, one end of the sliding shaft is fixedly connected to a clamping plate, the other end of the sliding shaft is rotatably connected to a top wheel, and a spring telescopic rod is fixedly connected between the surface of the clamping plate and the surface of the fixed base.

3. The electric motorcycle middle shaft processing device according to claim 1, characterized in that: The end of the annular jacket is rotatably connected to the fixed base, and the surface of the inclined side top plate is connected to the surface of the top wheel.

4. The electric motorcycle middle shaft processing device according to claim 1, characterized in that: The dynamic sawing device includes a screw sleeve base, the inner wall of the screw sleeve base is threadedly connected to the surface of the adjusting screw, a sawing motor is installed inside the screw sleeve base, the output shaft of the sawing motor is connected to a rotating sleeve rod, the end of the rotating sleeve rod is slidably connected to a key shaft, the end of the key shaft is fixedly connected to a bevel gear 1, the surface of the bevel gear 1 is meshed with a bevel gear 2, the end of the bevel gear 2 is fixedly connected to a saw blade, the saw blade is rotatably connected to a telescopic seat, and the inside of the telescopic seat is slidably connected to a fixed seat.

5. The electric motorcycle middle shaft processing device according to claim 1, characterized in that: The surface of the fixed seat is fixedly connected to the surface of the screw sleeve base, the surface of the rotating sleeve rod is rotatably connected inside the fixed seat, the surface of the key shaft is rotatably connected inside the telescopic seat, the screw sleeve base is fixedly connected to the limiting sleeve, and the sliding sleeve of the limiting sleeve is arranged on the limiting shaft sleeve.

6. The electric motorcycle middle shaft processing device according to claim 5, characterized in that: The dynamic sawing device also includes a limit rod, both ends of which are fixedly connected to the machine base, and the limit rod is slidably connected to a wave slide, and a horizontal area and a wave slide are arranged in the wave slide. The inner wall of the wave slide is slidably connected to a positioning shaft, and the positioning shaft is fixedly connected to one side of the telescopic seat.

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