A grinding device for real axis production

Abstract

The present invention relates to the technical field of grinding equipment, and discloses a grinding equipment for real axis production, including a rotary power machine base and a fixed base. A number of rotary clamping arms are rotatably sleeved on one side of the rotary power machine base, and the number of rotary clamping arms are annularly distributed along the output shaft of the rotary power machine base. The output shaft of the rotary power machine base is in transmission connection with the rotary clamping arms through a second transmission mechanism; a number of pressing clamping arms are installed inside the fixed base, and the output ends of the number of pressing clamping arms are respectively horizontally aligned with the number of rotary clamping arms. A grinding mechanism is installed on the side of the fixed base facing the rotary power machine base, and the rotary power machine base drives the grinding mechanism to rotate for grinding the surfaces of a number of real axes a; in the present invention, a number of real axes a to be ground are clamped and fixed by a number of rotary clamping arms and pressing clamping arms. Through the position distribution of the number of rotary clamping arms and pressing clamping arms, a number of real axes a are annularly distributed around the grinding mechanism. The operation of the rotary power machine base drives the grinding mechanism to rotate at high speed to achieve a multi-station grinding effect.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, and more specifically to a grinding equipment for producing a solid shaft. Background Art

[0002] The solid shaft is one of the important parts of the transmission shaft. The main function of the solid shaft is to transmit the torque and power generated by the engine. In the production process, the grinding of the solid shaft is crucial. It not only affects the appearance quality of the shaft, but is also directly related to the wear resistance, corrosion resistance and service life of the shaft. The traditional solid shaft grinding method mainly relies on manual operation, such as grinding with a handheld grinding wheel. This method has problems such as low production efficiency due to differences in workers' experience. With the development of automated grinding equipment, advanced CNC technology and precise mechanical structure have been used to greatly improve production efficiency and product quality.

[0003] However, the existing grinding equipment still has some limitations in its design. For example, a single device can only grind a single real shaft during grinding, which leads to low efficiency. Secondly, the grinding equipment has a complex structure and requires multiple power mechanisms to work together, such as an independent power mechanism to control the rotation of the real shaft and a displacement mechanism to move the grinding mechanism. This not only increases the complexity of the equipment, but also easily leads to failures. Summary of the invention

[0004] In order to overcome the above defects of the prior art, the present invention provides a grinding device for real shaft production to solve the problems of the transmission grinding device in the above background technology, such as processing speed, complex equipment structure and easy failure.

[0005] The present invention provides the following technical solution: a grinding device for solid shaft production, comprising a rotating power machine base and a fixed base, wherein one side of the rotating power machine base is rotatably sleeved with a plurality of rotating clamping arms, wherein the plurality of rotating clamping arms are distributed in a ring shape along the output shaft of the rotating power machine base, and the output shaft of the rotating power machine base is transmission-connected to the rotating clamping arms through a second transmission mechanism;

[0006] A plurality of pressing clamp arms are installed inside the fixed seat, and the output ends of the plurality of pressing clamp arms are respectively aligned transversely with the plurality of rotating clamp arms, and the rotating clamp arms and the pressing clamp arms are used to clamp the real shaft a of the grinding piece, and realize self-centering and anti-slipping, and a grinding mechanism is installed on the side of the fixed seat facing the rotating power machine base, and the other end of the grinding mechanism is connected to the output shaft of the rotating power machine base, and the rotating power machine base drives the grinding mechanism to rotate to grind the surfaces of the plurality of real shafts a;

[0007] The grinding mechanism rotates to achieve self-propelled axial grinding along the real axis a, and the second transmission mechanism is used to transmit the torque of the rotating power machine base to make the multiple rotating clamping arms rotate in different directions, so as to achieve circumferential grinding of the real axis a by the grinding mechanism.

[0008] Further, the grinding mechanism includes end blocks and a first rotating column. Two threaded shafts are rotatably sleeved on the inner sides of the end blocks and the first rotating column. Grinding discs are threadedly sleeved on the side walls of the two threaded shafts. The end blocks are fixedly connected to the end face of the output shaft of the rotary power machine base. A fixed disc is rotatably sleeved on the side wall of the first rotating column. A first transmission mechanism is fixedly connected to one side of the fixed disc. The fixed disc is fixedly installed on one side of the fixed seat. The first rotating column is in transmission connection with the two threaded shafts through the first transmission mechanism. The first transmission mechanism is used to transmit the torque of the first rotating column to rotate the two threaded shafts.

[0009] Further, the first transmission mechanism includes a fixed shell and fixed arm plates. The fixed shell is fixedly connected to one side of the grinding disc. The fixed arm plates are fixedly connected to the end face of the first rotating column. Two driving side columns are rotatably sleeved on one side of the fixed arm plates. A first gear is fixedly connected to one end of each of the two driving side columns. A fixed gear is fixedly connected to the inner wall of the fixed shell. The fixed gear is located at the gap between the two first gears and meshes with the two first gears. Two driven side columns are also rotatably sleeved on one side of the fixed arm plates. A third gear is fixedly connected to one end of each of the two driven side columns, and the other end penetrates through the fixed arm plates and the first rotating column to be connected to the two threaded shafts. A second gear is fixedly connected to the side wall of each of the two driving side columns. The two second gears respectively mesh with the two third gears;

[0010] The number of teeth of the first gear is greater than the number of teeth of the fixed gear, and the number of teeth of the third gear is greater than the number of teeth of the second gear.

[0011] Further, the grinding disc includes a middle disc. A number of side grooves are formed on the peripheral side of the middle disc. A number of grinding contacts are slidably sleeved in the a number of side grooves. A T-shaped slider is fixedly connected to the side wall of each of the a number of grinding contacts. A T-shaped sliding groove is formed on the inner wall of each of the a number of side grooves. The T-shaped slider is slidably sleeved in the T-shaped sliding groove. A threaded hole penetrating through to the other side of the T-shaped slider is formed on one side of the grinding contact, and a threaded rod is threadedly sleeved in the threaded hole.

[0012] Further, a first abrasive pad is fixedly connected to one end of the threaded rod facing the T-shaped sliding groove.

[0013] Further, the second transmission mechanism includes a central gear, a number of planetary gears, a cage, and a number of second rotating columns. The cage is fixedly connected to the inner wall of the rotary power machine base and is movably sleeved on the side wall of the output shaft of the rotary power machine base. The central gear is fixedly connected to the side wall of the output shaft of the rotary power machine base. A number of the second rotating columns are rotatably sleeved on one side of the cage. A number of planetary gears are fixedly connected to the side walls of the a number of second rotating columns. The a number of planetary gears mesh with the central gear. One ends of the a number of rotating clamping arms away from the fixed seat are respectively connected to the a number of second rotating columns.

[0014] Further, the pressing clamp arm is composed of an electric cylinder and a moving chuck. The moving chuck is rotatably sleeved at the output end of the electric cylinder. The rotating clamp arm is composed of a main body rotating arm and a fixed chuck. The fixed chuck is fixedly connected to one end of the main body rotating arm.

[0015] Further, conical grooves are provided on the inner sides of the fixed chuck and the moving chuck.

[0016] Further, a positioning ring is arranged on the inner wall of the moving chuck. An annular groove is formed on the side wall of the output shaft of the electric cylinder. The positioning ring is embedded in the annular groove. A plurality of ball bearings distributed in a ring are arranged on one side of the end face of the inner wall of the moving chuck facing the output shaft of the electric cylinder. The plurality of ball bearings are in contact with the end face of the output shaft of the electric cylinder.

[0017] Further, a shaft hole communicating with the conical groove of the main body rotating arm is arranged inside the fixed chuck. An outer cylinder is slidably sleeved inside the shaft hole. A threaded inner column is threadedly sleeved on the inner wall of the outer cylinder. A knob penetrating into the shaft hole is arranged on the side wall of the fixed chuck. The output end of the knob is drivingly connected to one end of the threaded inner column through a bevel gear transmission group. A second abrasive pad is fixedly connected to one end of the outer cylinder entering the conical groove.

[0018] Technical effects and advantages of the present invention:

[0019] The present invention is provided with a rotating power base, a plurality of rotating clamp arms, a plurality of pressing clamp arms, and a grinding mechanism. The plurality of rotating clamp arms and pressing clamp arms are used to clamp and fix a plurality of grinding parts on the real axis a. Through the position distribution of the plurality of rotating clamp arms and pressing clamp arms, the plurality of real axes a are annularly distributed around the grinding mechanism. The operation of the rotating power base drives the grinding mechanism to rotate at a high speed to achieve a multi-station grinding effect, improving the processing efficiency;

[0020] The structure of the grinding mechanism is further improved. A first transmission mechanism and two threaded shafts are provided. The grinding disc rotates for grinding through the revolution of the two threaded shafts. When the two threaded shafts revolve, the rotational force is transmitted through the first transmission mechanism, causing the two threaded shafts to rotate. Through the cooperation of the thread relationship, while the grinding disc rotates for grinding, it also moves horizontally. While the grinding mechanism is operating, it can also achieve self-walking and axially grind along the grinding part, making the equipment more convenient without an external horizontal movement mechanism;

[0021] The structure of the first transmission mechanism is further improved. The cooperation of the first gear and the fixed gear realizes the transmission from revolution to rotation and also realizes transmission deceleration. The second gear and the driven side column are also provided for further transmission deceleration. As a result, the rotation speed of the threaded shaft is greatly reduced, avoiding the situation that the grinding mechanism does not comprehensively grind the circumferential surface of the real axis a due to the too fast horizontal movement speed of the grinding disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 is a schematic structural view of the grinding mechanism therein;

[0025] Figure 4 For the present invention Figure 3 is a schematic structural view of the first transmission mechanism therein;

[0026] Figure 5 For the present invention Figure 3 is a schematic structural view of the grinding disc therein;

[0027] Figure 6 For the present invention Figure 2 is a schematic structural view therein;

[0028] Figure 7 For the present invention Figure 2 is a schematic structural view of the pressing clamping arm and the rotating clamping arm therein;

[0029] Figure 8 For the present invention Figure 7 is a schematic cross-sectional view of the moving chuck therein;

[0030] Figure 9 For the present invention Figure 7 is a schematic cross-sectional view of the main body rotating arm and the fixed chuck therein.

[0031] Reference numerals are: 1, rotating power machine base; 2, rotating clamping arm; 3, fixed seat; 4, pressing clamping arm; 5, grinding mechanism; 6, second transmission mechanism; 51, end block; 52, first rotating column; 53, threaded shaft; 54, grinding disc; 55, first transmission mechanism; 56, fixed disc; 551, fixed housing; 552, fixed arm plate; 553, active side column; 554, first gear; 555, fixed gear; 556, driven side column; 557, second gear; 558, third gear; 541, middle disc; 542, side groove; 543, grinding contact head; 544, first abrasive pad; 545, T-shaped slider; 546, threaded rod; 61, central gear; 62, planetary gear; 63, cage; 64, second rotating column; 21, main body rotating arm; 22, fixed chuck; 41, electric cylinder; 42, moving chuck; 421, positioning ring; 422, ball; 221, shaft hole; 222, outer cylinder; 223, internal threaded column; 224, knob; 225, bevel gear transmission group; 226, second abrasive pad. Detailed Description of the Invention

[0032] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0033] Referring toFigure 1 and Figure 2 , the present invention provides a grinding device for real - axis production, including a rotary power base 1 and a fixed base 3. A number of rotary clamping arms 2 are rotatably sleeved on one side of the rotary power base 1. The number of rotary clamping arms 2 is annularly distributed along the output shaft of the rotary power base 1. The output shaft of the rotary power base 1 is in transmission connection with the rotary clamping arms 2 through a second transmission mechanism 6;

[0034] A number of pressing clamping arms 4 are installed inside the fixed base 3. The output ends of the number of pressing clamping arms 4 are respectively horizontally aligned with the number of rotary clamping arms 2. The rotary clamping arms 2 and the pressing clamping arms 4 are used to clamp the grinding piece real - axis a, and achieve self - centering and anti - detachment. A grinding mechanism 5 is installed on the side of the fixed base 3 facing the rotary power base 1. The other end of the grinding mechanism 5 is connected to the output shaft of the rotary power base 1. The rotary power base 1 drives the grinding mechanism 5 to rotate for grinding the surfaces of a number of real - axes a;

[0035] The rotation of the grinding mechanism 5 realizes self - walking and grinding along the axial direction of the real - axis a. The second transmission mechanism 6 is used to transmit the torque of the rotary power base 1 to make a number of rotary clamping arms 2 rotate in different directions, realizing the circumferential grinding of the real - axis a by the grinding mechanism 5.

[0036] During use, a number of grinding piece real - axes a can be clamped and fixed through a number of rotary clamping arms 2 and pressing clamping arms 4. The rotary power base 1 outputs power to drive the grinding mechanism 5 to rotate at a high speed and contact with a number of real - axes a on the periphery for grinding. During this process, the rotation force of the rotary power base 1 drives a number of rotary clamping arms 2 to rotate in different directions through the transmission of the second transmission mechanism 6. Through the frictional force between the rotary clamping arms 2 and the end face of the real - axis a, the rotary clamping arms 2 can rotate along the real - axis a. At this time, the circumferential surfaces of a number of real - axes a can all contact the grinding mechanism 5 to realize circumferential grinding. And during the process of the rotary power base 1 driving the grinding mechanism 5 to rotate at a high speed, it realizes self - walking and grinding along the axial direction of the real - axis a. Thus, the device can realize multi - station processing, improve the processing efficiency of the real - axis grinding process. In addition, only a single power can meet the grinding requirements for the circumferential and axial directions of the real - axis a, and it is applicable to the grinding processing of shafts, columns, and pipes.

[0037] Referring to Figure 3 , the grinding mechanism 5 includes an end block 51 and a first rotating column 52. Two threaded shafts 53 are rotatably sleeved on the inner sides of the end block 51 and the first rotating column 52. Grinding discs 54 are threadedly sleeved on the side walls of the two threaded shafts 53. The end block 51 is fixedly connected to the end face of the output shaft of the rotary power base 1. A fixed disc 56 is rotatably sleeved on the side wall of the first rotating column 52. A first transmission mechanism 55 is fixedly connected to one side of the fixed disc 56. The fixed disc 56 is fixedly installed on one side of the fixed base 3. The first rotating column 52 is in transmission connection with the two threaded shafts 53 through the first transmission mechanism 55. The first transmission mechanism 55 is used to transmit the torque of the first rotating column 52 to make the two threaded shafts 53 rotate.

[0038] Through the connection relationship of the end block 51, the first rotating column 52, and the threaded shaft 53, when the rotating power base 1 outputs rotating power, the two threaded shafts 53 can perform a revolution. At this time, through the revolution of the two threaded shafts 53, the grinding disc 54 can rotate at a high speed to grind the solid shaft a. During this process, the rotating force of the first rotating column 52 is transmitted through the first transmission mechanism 55, causing the two threaded shafts 53 to rotate around their own axes while performing a revolution. Also, due to the threaded connection relationship between the threaded shaft 53 and the grinding disc 54, the grinding disc 54 can perform a lateral displacement, thereby achieving grinding along the axial direction of the solid shaft a.

[0039] Referring to Figure 4 , the first transmission mechanism 55 includes a fixed housing 551 and a fixed arm plate 552. The fixed housing 551 is fixedly connected to one side of the grinding disc 54, and the fixed arm plate 552 is fixedly connected to the end face of the first rotating column 52. Two driving side columns 553 are rotatably sleeved on one side of the fixed arm plate 552. One end of each of the two driving side columns 553 is fixedly connected to a first gear 554. A fixed gear 555 is fixedly connected to the inner wall of the fixed housing 551. The fixed gear 555 is located in the gap between the two first gears 554 and meshes with the two first gears 554. Two driven side columns 556 are also rotatably sleeved on one side of the fixed arm plate 552. One end of each of the two driven side columns 556 is fixedly connected to a third gear 558, and the other end penetrates through the fixed arm plate 552 and the first rotating column 52 to be connected to the two threaded shafts 53. A second gear 557 is fixedly connected to the side wall of each of the two driving side columns 553. The two second gears 557 respectively mesh with the two third gears 558;

[0040] The number of teeth of the first gear 554 is greater than the number of teeth of the fixed gear 555, and the number of teeth of the third gear 558 is greater than the number of teeth of the second gear 557.

[0041] When the first rotating column 52 rotates, it drives the two driving side columns 553 to perform a revolution. Through the revolution of the two driving side columns 553, the two first gears 554 roll on the side wall of the fixed gear 555. Also, due to the meshing relationship between the first gear 554 and the fixed gear 555, when the first gear 554 rolls on the side wall of the fixed gear 555, it rotates around its own axis. At this time, the two driving side columns 553 are driven to rotate around their own axes through the two first gears 554. Through the meshing relationship between the second gear 557 and the third gear 558, the two driving side columns 553 drive the two driven side columns 556 to rotate around their own axes. Through the rotation of the two driven side columns 556, the two threaded shafts 53 are rotated, thereby achieving the transmission effect of the first transmission mechanism 55; during this process, through the difference in the number of teeth between the first gear 554 and the fixed gear 555, a transmission speed reduction effect can be achieved, and through the difference in the number of teeth between the second gear 557 and the third gear 558, the speed reduction transmission is performed again. Through this setting, the rotation speed of the two threaded shafts 53 can be greatly reduced, avoiding the situation that the circumferential grinding of the solid shaft a is incomplete due to the too fast lateral movement speed of the grinding disc 54.

[0042] Referring to Figure 5, the grinding disc 54 includes a middle disc 541. A number of side grooves 542 are formed on the circumferential side of the middle disc 541. A number of grinding contacts 543 are slidably sleeved inside the number of side grooves 542. T-shaped sliders 545 are fixedly connected to the side walls of the number of grinding contacts 543. T-shaped sliding grooves are formed on the inner walls of the number of side grooves 542. The T-shaped sliders 545 are slidably sleeved in the T-shaped sliding grooves. A threaded hole penetrating to the other side of the T-shaped slider 545 is formed on one side of the grinding contact 543, and a threaded rod 546 is threadedly sleeved in the threaded hole.

[0043] Since the diameter of the solid shaft a of the grinding part will affect the distance from its side wall to the grinding disc 54, the structure of the grinding disc 54 is optimized. The grinding is carried out by the contact of a number of grinding contacts 543 with the solid shaft a. Through the slidable characteristic of the grinding contacts 543 in the side grooves 542, the distance between the grinding end of the grinding disc 54 and the grinding part can be adjusted, so that the device can match more shaft-shaped grinding parts with different diameters. The threaded rod 546 is used to fasten the position of the grinding contact 543 in the side groove 542, and the T-shaped slider 545 plays an anti-disconnection effect on the grinding contact 543.

[0044] Refer to Figure 5 , a grinding pad 544 is fixedly connected to one end of the threaded rod 546 facing the T-shaped sliding groove. When the position of the grinding contact 543 is fastened by rotating the threaded rod 546 to abut against the inner wall of the T-shaped sliding groove, the grinding pad 544 contacts the inner wall of the T-shaped sliding groove to increase the friction force, so that the position of the grinding contact 543 can be locked more firmly.

[0045] Refer to Figure 6 , the transmission mechanism 6 includes a central gear 61, a number of planetary gears 62, a cage 63, and a number of rotating columns 64. The cage 63 is fixedly connected to the inner wall of the rotary power seat 1. The cage 63 is movably sleeved on the side wall of the output shaft of the rotary power seat 1. The central gear 61 is fixedly connected to the side wall of the output shaft of the rotary power seat 1. A number of rotating columns 64 are rotatably sleeved on one side of the cage 63. A number of planetary gears 62 are fixedly connected to the side walls of the number of rotating columns 64. The number of planetary gears 62 mesh with the central gear 61. The ends of the number of rotating clamping arms 2 far from the fixed seat 3 are respectively connected to the number of rotating columns 64.

[0046] When the rotary power seat 1 outputs a rotational force, it drives the central gear 61 to rotate. Through the meshing relationship between the central gear 61 and the rotating column 64, the central gear 61 can drive a number of planetary gears 62 to rotate in opposite directions. The planetary gears 62 drive the rotating columns 64 to rotate. Due to the connection relationship between the rotating clamping arms 2 and the rotating columns 64, the transmission effect of the transmission mechanism 6 is realized, and a number of rotating clamping arms 2 rotate in opposite directions.

[0047] Refer to Figure 7, the pressing clamp arm 4 is composed of an electric cylinder 41 and a moving chuck 42. The moving chuck 42 is rotatably sleeved at the output end of the electric cylinder 41. The rotating clamp arm 2 is composed of a main body rotating arm 21 and a fixed chuck 22. The fixed chuck 22 is fixedly connected to one end of the main body rotating arm 21.

[0048] The displacement of the moving chuck 42 is driven by the output of the electric cylinder 41, so that the distance between the moving chuck 42 and the fixed chuck 22 is reduced. The grinding part a is placed between the fixed chuck 22 and the moving chuck 42. The two ends of the solid shaft a are tightly clamped by the fixed chuck 22 and the moving chuck 42 to achieve the clamping effect. When the solid shaft a is driven to rotate by the rotating clamp arm 2, the moving chuck 42 rotates on the output shaft of the electric cylinder 41, avoiding affecting the electric cylinder 41. The electric cylinder 41 is not the only implementation method and can be replaced by a cylinder, an oil cylinder or a screw telescopic mechanism.

[0049] Refer to Figure 7 , conical grooves are provided on the inner sides of the fixed chuck 22 and the moving chuck 42.

[0050] With this setting, when the fixed chuck 22 and the moving chuck 42 approach and tightly clamp the two ends of the solid shaft a, the two ends of the solid shaft a enter the conical grooves of the fixed chuck 22 and the moving chuck 42. According to the characteristics of the conical grooves, the centering effect can be achieved on the two ends of the solid shaft a, ensuring that the solid shaft a is parallel to the grinding mechanism 5 after being fixed. In addition, it can also prevent the solid shaft a from disengaging between the fixed chuck 22 and the moving chuck 42 when being ground.

[0051] Refer to Figure 8 , a positioning ring 421 is arranged on the inner wall of the moving chuck 42, an annular groove is opened on the side wall of the output shaft of the electric cylinder 41, the positioning ring 421 is embedded in the annular groove, and a plurality of annularly distributed balls 422 are arranged on the end face of the inner wall of the moving chuck 42 facing the output shaft of the electric cylinder 41. The plurality of balls 422 are in contact with the end face of the output shaft of the electric cylinder 41.

[0052] By setting the cooperation between the positioning ring 421 and the annular groove on the output shaft of the electric cylinder 41, the anti - detachment effect on the moving chuck 42 is achieved. When the equipment is grinding, the rotating clamp arm 2 drives the solid shaft a to rotate, and when the two ends of the solid shaft a are tightly clamped by the moving chuck 42 and the fixed chuck 22, the moving chuck 42 will be subjected to a reverse force and generate a large friction force with the electric cylinder 41, affecting its rotation. By setting a plurality of balls 422, the rotational friction force of the moving chuck 42 can be greatly reduced.

[0053] Refer to Figure 9, a shaft hole 221 communicating with the conical groove of the main body rotating arm 21 is arranged inside the fixed chuck 22. An outer cylinder 222 is slidably sleeved inside the shaft hole 221. A threaded inner column 223 is threadedly sleeved on the inner wall of the outer cylinder 222. A knob 224 penetrating into the inside of the shaft hole 221 is arranged on the side wall of the fixed chuck 22. The output end of the knob 224 is drivingly connected with one end of the threaded inner column 223 through a bevel gear transmission group 225. One end of the outer cylinder 222 entering the conical groove is fixedly connected with a second abrasive pad 226.

[0054] Since the rotating clamping arm 2 needs to drive the real shaft a to rotate through friction, through the structural setting of the fixed chuck 22, after one end of the real shaft a enters the conical groove of the main body rotating arm 21, by rotating the knob 224, the threaded inner column 223 rotates under the driving effect of the bevel gear transmission group 225. According to the thread relationship, the outer cylinder 222 can be displaced, driving the second abrasive pad 226 to abut against the end face of the real shaft a, thereby increasing the friction to prevent slipping. A positioning strip is arranged on the side wall of the outer cylinder 222, and a positioning chute matching with the positioning strip is arranged on the inner wall of the shaft hole 221, which can prevent the outer cylinder 222 from rotating with the threaded inner column 223 due to friction and thus being unable to displace.

[0055] The above shows and describes the basic principle, main features and advantages of the present invention. The present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for solid shaft production, characterized in that: It comprises a rotary power machine base (1) and a fixed base (3); a plurality of rotary clamping arms (2) are rotatably sleeved on one side of the rotary power machine base (1); the plurality of rotary clamping arms (2) are distributed in a ring shape along the output shaft of the rotary power machine base (1); the output shaft of the rotary power machine base (1) is transmission-connected to the rotary clamping arms (2) via a second transmission mechanism (6); A plurality of pressing clamp arms (4) are installed inside the fixed seat (3), and the output ends of the plurality of pressing clamp arms (4) are respectively aligned laterally with the plurality of rotating clamp arms (2). The rotating clamp arms (2) and the pressing clamp arms (4) are used to clamp the real shaft a of the grinding piece and realize self-centering and anti-slipping. A grinding mechanism (5) is installed on the side of the fixed seat (3) facing the rotating power machine base (1), and the other end of the grinding mechanism (5) is connected to the output shaft of the rotating power machine base (1). The rotating power machine base (1) drives the grinding mechanism (5) to rotate and is used to grind the surfaces of the plurality of real shafts a. The grinding mechanism (5) comprises an end block (51) and a rotary column (52); two threaded shafts (53) are rotatably sleeved on the inner side surfaces of the end block (51) and the rotary column (52); grinding discs (54) are threadably sleeved on the side walls of the two threaded shafts (53); the end block (51) is fixedly connected to the end surface of the output shaft of the rotary power machine base (1); a fixed disc (56) is rotatably sleeved on the side wall of the rotary column (52); a transmission mechanism (55) is fixedly connected to one side of the fixed disc (56); the fixed disc (56) is fixedly installed on one side of the fixed base (3); the rotary column (52) is transmission-connected to the two threaded shafts (53) via the transmission mechanism (55); the transmission mechanism (55) is used to transmit the torque of the rotary column (52) to rotate the two threaded shafts (53); The grinding mechanism (5) rotates to achieve self-propelled axial grinding along the real axis a, and the second transmission mechanism (6) is used to transmit the torque of the rotating power machine base (1) to cause the plurality of rotating clamping arms (2) to rotate in different directions, thereby achieving circumferential grinding of the real axis a by the grinding mechanism (5).

2. A grinding device for producing a solid shaft according to claim 1, characterized in that: The transmission mechanism 1 (55) comprises a fixed shell (551) and a fixed arm plate (552), wherein the fixed shell (551) is fixedly connected to one side of the grinding disc (54), and the fixed arm plate (552) is fixedly connected to the end surface of the rotating column 1 (52). Two active side columns (553) are rotatably sleeved on one side of the fixed arm plate (552), and one end of each of the two active side columns (553) is fixedly connected to a gear 1 (554). A fixed gear (555) is fixedly connected to the inner wall of the fixed shell (551), and the fixed gear (555) Located at the gap between the two gears 1 (554) and meshing with the two gears 1 (554), one side of the fixed arm plate (552) is also rotatably sleeved with two driven side columns (556), one end of the two driven side columns (556) is fixedly connected to the gear 3 (558), and the other end passes through the fixed arm plate (552), the rotary column 1 (52) and is connected to the two threaded shafts (53), the side walls of the two active side columns (553) are fixedly connected to the gear 2 (557), and the two gears 2 (557) are respectively meshed with the two gears 3 (558); The number of teeth of gear one (554) is greater than the number of teeth of the fixed gear (555), and the number of teeth of gear three (558) is greater than the number of teeth of gear two (557).

3. The grinding device for producing a solid shaft according to claim 1, characterized in that: The grinding disc (54) includes a middle disc (541), and a plurality of side grooves (542) are provided on the circumference of the middle disc (541). A plurality of grinding contacts (543) are slidably sleeved inside the plurality of side grooves (542). The side walls of the plurality of grinding contacts (543) are fixedly connected with T-shaped sliders (545). The inner walls of the plurality of side grooves (542) are provided with T-shaped slide grooves, and the T-shaped slide grooves (545) are slidably sleeved in the T-shaped slide grooves. A threaded hole is provided on one side of the grinding contact (543) and extends to the other side of the T-shaped slide groove, and a threaded rod (546) is threadedly sleeved in the threaded hole.

4. The grinding device for producing a solid shaft according to claim 3, characterized in that: One end of the threaded rod (546) facing the T-shaped slide groove is fixedly connected to a frosted pad block 1 (544).

5. The grinding device for producing a solid shaft according to claim 1, characterized in that: The transmission mechanism 2 (6) comprises a central gear (61), a plurality of planetary gears (62), a retaining frame (63), and a plurality of second rotating pillars (64). The retaining frame (63) is fixedly connected to the inner wall of the rotating power machine base (1), the retaining frame (63) is movably sleeved on the side wall of the output shaft of the rotating power machine base (1), the central gear (61) is fixedly connected to the side wall of the output shaft of the rotating power machine base (1), a plurality of second rotating pillars (64) are rotatably sleeved on one side of the retaining frame (63), a plurality of planetary gears (62) are fixedly connected to the side walls of the plurality of second rotating pillars (64), the plurality of planetary gears (62) are meshed with the central gear (61), and one end of the plurality of rotating clamping arms (2) away from the fixed base (3) is respectively connected to the plurality of second rotating pillars (64).

6. The grinding device for producing a solid shaft according to claim 1, characterized in that: The pressing clamp arm (4) is composed of an electric cylinder (41) and a movable clamp (42), and the movable clamp (42) is rotatably sleeved on the output end of the electric cylinder (41). The rotating clamp arm (2) is composed of a main rotating arm (21) and a fixed clamp (22), and the fixed clamp (22) is fixedly connected to one end of the main rotating arm (21).

7. A grinding device for producing a solid shaft according to claim 6, characterized in that: The inner sides of the fixed chuck (22) and the movable chuck (42) are both provided with conical grooves.

8. The grinding device for producing a solid shaft according to claim 6, characterized in that: The inner wall of the dynamic chuck (42) is provided with a positioning ring (421), the side wall of the output shaft of the electric cylinder (41) is provided with an annular groove, the positioning ring (421) is embedded in the annular groove, and the inner wall of the dynamic chuck (42) facing the end face of the output shaft of the electric cylinder (41) is provided with a plurality of balls (422) distributed in an annular shape, and the plurality of balls (422) are in contact with the end face of the output shaft of the electric cylinder (41).

9. The grinding device for producing a solid shaft according to claim 6, characterized in that: The fixed chuck (22) is provided with an axial hole (221) in communication with the conical groove of the main rotating arm (21); an outer cylinder (222) is slidably sleeved inside the axial hole (221); a threaded inner column (223) is threadedly sleeved on the inner wall of the outer cylinder (222); a knob (224) is provided on the side wall of the fixed chuck (22) and penetrates into the axial hole (221); an output end of the knob (224) is transmission-connected to one end of the threaded inner column (223) via a bevel gear transmission group (225); and a frosted pad (226) is fixedly connected to the end of the outer cylinder (222) that enters the conical groove.

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