Polishing device for automobile part production

Abstract

The polishing device for automobile part production relates to the technical field of automobile part production and comprises a shell, a driving motor is fixedly arranged on the inner wall of the shell, a first chuck is fixedly arranged at the output end of the driving motor, and a second chuck is rotationally arranged on the side, right opposite to the driving motor, of the inner wall of the shell. According to the polishing device for automobile part production, aiming at the characteristic that the positions of a connecting rod neck shaft and a main neck shaft in an automobile crankshaft are regularly distributed in a staggered mode, a rotating structure with the same distance as the axis of the connecting rod neck shaft and the axis of the main neck shaft is arranged in the polishing device, the structure and the crankshaft are kept to synchronously rotate during polishing, and then the rotating path of the connecting rod neck shaft is simulated; and the position of the polishing device is changed through the rotating structure, the crankshaft and the polishing device are fixed at the same time, finally, the effects that the polishing device and the crankshaft move synchronously, and the contact pressure between the abrasive belt and the connecting rod neck shaft is not changed are achieved, and the purpose of evenly polishing the connecting rod neck shaft is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts production, in particular to a polishing device for automobile parts production. Background Art

[0002] With the development of science and technology, automobile manufacturing technology has been significantly improved, and with it comes the improvement of the process requirements for automobile parts. Polishing has always been an important processing method for automobile parts. Excellent polishing technology can significantly improve the surface quality of automobile parts, making them more delicate and smooth, and can also increase wear resistance and corrosion resistance. Among the many parts of a car, the crankshaft is the main rotating part of the engine. It is in a high-speed rotation state when it starts, so it requires higher wear resistance during production, and thus has higher requirements for polishing.

[0003] In the production of existing crankshafts, abrasive belt polishing is often used. The parts of the crankshaft that need to be polished are divided into two parts: the connecting rod neck shaft and the main neck shaft. Although the main neck shaft is separated by the connecting rod neck shaft, they are located on the same axis. Therefore, during polishing, the pressure between its outer side and the abrasive belt remains at a uniform value. However, the connecting rod neck shaft and the main neck shaft are not on the same axis. This causes the pressure between the connecting rod neck shaft and the abrasive belt to always change when the crankshaft rotates, which in turn causes the side surface of the connecting rod neck shaft to be unable to be polished uniformly. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, a polishing device for automobile parts production is provided, which can utilize the staggered arrangement of the connecting rod neck shafts of the crankshaft to maintain the uniformity of the pressure between the connecting rod neck shafts and the sanding belt when in use.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A polishing device for automobile parts production, comprising a housing, a driving motor is fixedly arranged on the inner wall of the housing, a chuck 1 is fixedly arranged on the output end of the driving motor, a chuck 2 is rotatably arranged on the side of the inner wall of the housing directly facing the driving motor, and the chuck 1 and the chuck 2 are coaxially arranged; A support plate is arranged on the inner side of the outer shell, a grinding mechanism for polishing the connecting rod neck shaft is arranged on the top of the support plate, a first follower mechanism and a second follower mechanism that rotate with the crankshaft are arranged on the bottom of the support plate, and a plurality of support plates are arranged, and are respectively installed on the inner side of the outer shell through the first follower mechanism and the second follower mechanism.

[0007] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, the grinding mechanism includes a rotating motor, a rotating roller, a support frame, a connecting plate, a spring 1, a fixed frame, a rotating clamping plate, a guide roller, a protrusion 1, a lifting plate, a top roller, a protrusion 2, a spring 2 and a sanding belt. The rotating motor is fixedly arranged on the side of the support plate through a bracket, the rotating roller is fixedly arranged at the output end of the rotating motor, and the rotating motor is used to drive the rotating roller to rotate. The support frame is provided with a pair of and symmetrically arranged on the top of the support plate, the support plate is rotatably arranged on the top of the support plate through the bracket, and connecting plates are rotatably arranged on both sides of the support frame, and the spring 1 is provided with a pair of and symmetrically arranged on both sides of the support frame, and the two ends of the spring 1 on each side are respectively fixedly arranged on the opposite side of different connecting plates.

[0008] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, wherein: the fixed frame is fixedly arranged on the top of the support plate, the fixed frame is located between the two support frames, the rotating clamping plate is rotatably arranged on the top of the fixed frame through the bracket, the rotating clamping plate is provided with a pair and is symmetrically arranged on both sides of the connecting rod neck shaft when working, the guide roller is rotatably arranged at the end of the rotating clamping plate away from the fixed frame, the protrusion 1 is fixedly arranged at the end of the rotating clamping plate close to the fixed frame, the lifting plate passes through and is slidably arranged at the top center of the fixed frame, the top roller is rotatably arranged at the end of the lifting plate close to the connecting rod neck shaft, the protrusion 2 is fixedly arranged on the side of the lifting plate and slidably cooperates with the protrusion 1, and the two ends of the spring 2 are respectively fixedly arranged on the end of the lifting plate and the inner wall of the fixed frame.

[0009] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, the sanding belt is respectively sleeved on the outer sides of the rotating roller, the support frame and the guide roller. When the crankshaft is polished, the sanding belt abuts against the connecting rod neck shaft. When the rotating roller rotates, it can drive the sanding belt to slide around the side of the support frame. The grinding mechanism is provided with multiple groups, and each group of the grinding mechanism grinds different connecting rod neck shafts of the same crankshaft respectively when working to ensure polishing efficiency.

[0010] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, wherein: the first follower mechanism includes a fixed plate, a follower shaft 1, a rotating plate 1, a connecting column 1, a guide rail 1, a sliding frame, a lifting column, a lifting slot, a gear 1, a gear 2 and a transmission chain 1, the fixed plate is fixedly arranged on the inner bottom of the outer shell, the follower shaft 1 is fixedly arranged on the side of the fixed plate, the rotating plate is fixedly arranged on the end of the follower shaft 1 away from the fixed plate, the connecting column 1 is fixedly arranged on the side of the rotating plate away from the follower shaft 1, and the axial center distance between the follower shaft 1 and the connecting column 1 is the same as the axial center distance between the main neck shaft and the connecting rod neck shaft of the crankshaft.

[0011] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, wherein: the guide rail 1 is fixedly arranged on the inner bottom of the outer shell, the sliding frame is slidably arranged on the inner side of the guide rail 1, the lifting column is slidably arranged on the inner side of the sliding frame, the end of the connecting column 1 away from the rotating plate 1 is fixedly arranged on the side of the lifting column, the lifting groove is opened on the side of the sliding frame, the connecting column 1 is slidably arranged on the inner side of the lifting groove, and the top of the lifting column is fixedly arranged on the bottom of the support plate.

[0012] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, one of the gear sets is mounted and fixedly arranged on the side of the follower rotating shaft one, the gear two is mounted and fixedly arranged on the side of the output end of the driving motor, the two ends of the transmission chain one are respectively mounted on the side of the gear one and the gear two and meshed with the gear one and the gear two, the first follower mechanism is divided into two groups, the two groups of the first follower mechanism are symmetrically arranged on the inner bottom of the outer shell, and the other group of the gear two is mounted and fixedly arranged on the side of the rotating shaft of the chuck two.

[0013] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, the second follower mechanism includes a follower shaft 2, a rotating plate 2, a connecting column 2, a telescopic rod, a guide rail 2, a sliding column, a follower frame, a gear 3, a gear 4 and a transmission chain 2, the follower shaft 2 is rotatably arranged on the inner side of the outer shell, the rotating plate 2 is fixedly arranged on the end of the follower shaft 2 away from the outer shell, the connecting column 2 is fixedly arranged on the side of the rotating plate 2 away from the follower shaft 2, and the axial center distance between the follower shaft 2 and the connecting column 2 is the same as the axial center distance between the main neck shaft and the connecting rod neck shaft of the crankshaft.

[0014] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, the telescopic rod is fixedly arranged on the inner bottom of the outer shell, the guide rail 2 is fixedly arranged on the output end of the telescopic rod, the sliding column is slidably arranged on the inner side of the guide rail 2, the top of the sliding column is fixedly arranged on the bottom of the support plate, one end of the follower frame is fixedly arranged on both sides of the sliding column, and the end of the follower frame away from the sliding column is close to the inner top of the outer shell and is fixedly connected to the end of the connecting column 2 away from the rotating plate 2.

[0015] As a preferred embodiment of the polishing device for automobile parts production described in the present invention, wherein: the gear three is sleeved and fixedly arranged on the side of the output end of the driving motor, the gear four is sleeved and fixedly arranged on the side of the follower rotating shaft two, the two ends of the transmission chain two are respectively sleeved on the side surfaces of gear three and gear four and meshed with gear three and gear four, the second follower mechanism is also divided into two groups and are symmetrically arranged on the inner bottom of the outer shell, and the other group of gear four is sleeved and fixedly arranged on the side surface of the rotating shaft of chuck two.

[0016] The beneficial effects of the present invention are as follows: the polishing device for automobile parts production aims at the staggered distribution pattern of the connecting rod neck shaft and the main neck shaft in the automobile crankshaft. A rotating structure with the same axial center distance as that of the connecting rod neck shaft and the main neck shaft is set in the polishing equipment, and the structure is kept to rotate synchronously with the crankshaft during polishing, thereby imitating the rotation path of the connecting rod neck shaft. The position of the polishing device is then changed by using the rotating structure, and the crankshaft and the polishing device are fixed at the same time, finally achieving synchronous movement of the polishing device and the crankshaft, and keeping the contact pressure between the sand belt and the connecting rod neck shaft unchanged, so as to achieve the purpose of uniform polishing of the connecting rod neck shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the polishing device for automobile parts production of the present invention.

[0019] Figure 2 It is a half-section view of the shell of the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the shell of the present invention.

[0021] Figure 4 It is a schematic diagram of the grinding mechanism structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the top structure of the support plate of the present invention.

[0023] Figure 6 It is a schematic diagram of the lifting plate structure of the present invention.

[0024] Figure 7 It is a schematic diagram of the crankshaft structure of the present invention.

[0025] Figure numerals: A, connecting rod neck shaft; B, main neck shaft; 1, housing; 2, driving motor; 3, chuck 1; 4, chuck 2; 5, support plate; 6, grinding mechanism; 601, rotating motor; 602, rotating roller; 603, support frame; 604, connecting plate; 605, spring 1; 606, fixed frame; 607, rotating clamping plate; 608, guide roller; 609, convex block 1; 610, lifting plate; 611, top roller; 612, convex block 2; 613, spring 2; 614, abrasive belt; 7, first follower mechanism; 701, fixed frame Fixed plate; 702, follow-up rotating shaft 1; 703, rotating plate 1; 704, connecting column 1; 705, guide rail 1; 706, sliding frame; 707, lifting column; 708, lifting slot; 709, gear 1; 710, gear 2; 711, transmission chain 1; 8, second follow-up mechanism; 801, follow-up rotating shaft 2; 802, rotating plate 2; 803, connecting column 2; 804, telescopic rod; 805, guide rail 2; 806, sliding column; 807, follow-up frame; 808, gear 3; 809, gear 4; 810, transmission chain 2. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1 Reference Figure 1~Figure 2 , which is the first embodiment of the present invention, provides a polishing device for automobile parts production, comprising: A housing 1, a driving motor 2 is fixedly arranged on the inner wall of the housing 1, a chuck 1 3 is fixedly arranged on the output end of the driving motor 2, a chuck 2 4 is rotatably arranged on the side of the inner wall of the housing 1 directly opposite to the driving motor 2, and the chuck 1 3 and the chuck 2 4 are coaxially arranged; The support plate 5 is arranged on the inner side of the outer shell 1. A grinding mechanism 6 for polishing the connecting rod neck shaft A is arranged on the top of the support plate 5. A first follower mechanism 7 and a second follower mechanism 8 that rotate with the crankshaft are arranged on the bottom of the support plate 5. There are multiple support plates 5, which are respectively installed on the inner side of the outer shell 1 through the first follower mechanism 7 and the second follower mechanism 8.

[0031] Example 2 Reference Figure 3~Figure 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the grinding mechanism 6 includes a rotating motor 601, a rotating roller 602, a support frame 603, a connecting plate 604, a spring 1 605, a fixed frame 606, a rotating clamping plate 607, a guide roller 608, a protrusion 1 609, a lifting plate 610, a top roller 611, a protrusion 2 612, a spring 2 613 and an abrasive belt 614. The rotating motor 601 is fixedly arranged on the side of the supporting plate through a bracket, the rotating roller 602 is fixedly arranged at the output end of the rotating motor 601, and the rotating motor 601 is used to drive the rotating roller 602 to rotate. The support frame 603 is provided with a pair of and symmetrically arranged on the top of the supporting plate 5. The support frame 603 is rotatably arranged on the top of the supporting plate 5 through the bracket. The connecting plates 604 are rotatably arranged on both sides of the support frame 603. The spring 1 605 is provided with a pair of and symmetrically arranged on both sides of the support frame 603. The two ends of the spring 1 605 on each side are respectively fixedly arranged on the opposite side of different connecting plates 604.

[0032] The fixed frame 606 is fixedly set on the top of the support plate 5, and the fixed frame 606 is located between the two support frames 603. The rotating splint 607 is rotatably set on the top of the fixed frame 606 through the bracket. The rotating splint 607 is provided with a pair and is symmetrically arranged on both sides of the connecting rod neck axis A during operation. The guide roller 608 is rotatably set on the end of the rotating splint 607 away from the fixed frame 606. The protrusion 1 609 is fixedly set on the end of the rotating splint 607 close to the fixed frame 606. The lifting plate 610 passes through and is slidably set at the top center of the fixed frame 606. The top roller 611 is rotatably set on the end of the lifting plate 610 close to the connecting rod neck axis A. The protrusion 2 612 is fixedly set on the side of the lifting plate 610 and slidably cooperates with the protrusion 1 609. The two ends of the spring 2 613 are respectively fixedly set on the end of the lifting plate 610 and the inner wall of the fixed frame 606.

[0033] The sanding belt 614 is respectively sleeved on the outer sides of the rotating roller 602, the support frame 603 and the guide roller 608. When the crankshaft is polished, the sanding belt 614 abuts against the connecting rod neck shaft A. When the rotating roller 602 rotates, it can drive the sanding belt 614 to slide around the side of the support frame 603. There are multiple groups of grinding mechanisms 6. Each group of grinding mechanisms 6 grinds different connecting rod neck shafts A of the same crankshaft when working to ensure polishing efficiency.

[0034] During use: When polishing the crankshaft of a car, the crankshaft needs to be fixed, and in the subsequent polishing process, the first follower mechanism 7 and the second follower mechanism 8 need to rotate synchronously with the crankshaft. Therefore, during installation, the crankshaft needs to be fixed according to the rotation angle of the first follower mechanism 7 and the second follower mechanism 8.

[0035] When fixing the crankshaft, each connecting rod neck shaft A of the crankshaft is placed between the two rotating clamps 607 and then pressed downward. The sanding belt 614 is pressed to the inner side of the rotating clamp 607, and the top roller 611 of the lifting plate 610 is subjected to the pressure of the crankshaft to overcome the spring 2 613 and slide downward. During the sliding process, the protrusion 1 609 and the protrusion 2 612 contact each other, so that the rotating clamp 607 rotates toward the connecting rod neck shaft A, and finally clamps each section of the connecting rod neck shaft A, and the sanding belt 614 is also wrapped around the outside of the connecting rod neck shaft A, and finally the two ends of the crankshaft are completely fixed using the chuck 1 3 and the chuck 2 4.

[0036] After the installation is completed, the shape of the crankshaft automatically matches the first follower mechanism 7 and the second follower mechanism 8. This is because after the last polishing of the equipment was completed, the first follower mechanism 7 and the second follower mechanism 8 have fixed the grinding mechanism 6, and the rotating clamp 607 is located in the middle of the grinding mechanism 6. If the crankshaft wants to match the grinding mechanism 6, it must be consistent with the grinding mechanism 6.

[0037] After the crankshaft is fixed, the rotating motor 601 and the driving motor 2 are turned on. The rotating motor 601 drives the rotating roller 602 to rotate, and further drives the sanding belt 614 to rotate, thereby polishing the connecting rod neck shaft A of the crankshaft. Since the crankshaft itself is fixed by the chuck 1 3 and the chuck 2 4, the lifting plate 610 cannot be reset, and the rotating clamping plate 607 is always in a clamping state of the crankshaft. In this state, the sanding belt 614 can contact the crankshaft with a larger area, thereby improving the efficiency of polishing. More importantly, after the first follower mechanism 7 and the second follower mechanism 8 drive the grinding mechanism 6 and the crankshaft to move synchronously, the rotating clamping plate 607 can reduce the slight error of movement between the grinding mechanism 6 and the crankshaft, thereby avoiding the crankshaft from damaging the sanding belt 614 and at the same time increasing the stability and uniformity of polishing.

[0038] Among them, the spring 1 605 always stretches the support frame 603 outward, which allows the sanding belt 614 to have enough space to be pressed by the crankshaft.

[0039] The remaining structures are the same as those of Example 1.

[0040] Example 3 Reference Figure 3~Figure 4 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the first follower mechanism 7 includes a fixed plate 701, a follower shaft 1 702, a rotating plate 1 703, a connecting column 1 704, a guide rail 1 705, a sliding frame 706, a lifting column 707, a lifting slot 708, a gear 1 709, a gear 2 710 and a transmission chain 1 711. The fixed plate 701 is fixedly arranged on the inner bottom of the shell 1, the follower shaft 1 702 is fixedly arranged on the side of the fixed plate 701, the rotating plate is fixedly arranged on the end of the follower shaft 1 702 away from the fixed plate 701, the connecting column 1 704 is fixedly arranged on the side of the rotating plate away from the follower shaft 1 702, and the axial center distance between the follower shaft 1 702 and the connecting column 1 704 is the same as the axial center distance between the main journal axis B and the connecting rod journal axis A of the crankshaft.

[0041] The guide rail 705 is fixedly arranged at the inner bottom of the shell 1, the sliding frame 706 is slidably arranged on the inner side of the guide rail 705, the lifting column 707 is slidably arranged on the inner side of the sliding frame 706, the end of the connecting column 704 away from the rotating plate 703 is fixedly arranged on the side of the lifting column 707, the lifting groove 708 is opened on the side of the sliding frame 706, the connecting column 704 is slidably arranged on the inner side of the lifting groove 708, and the top of the lifting column 707 is fixedly arranged on the bottom of the support plate 5.

[0042] Gear 1 709 is sleeved and fixedly arranged on the side of follower shaft 1 702, gear 2 710 is sleeved and fixedly arranged on the side of the output end of the driving motor 2, and the two ends of the transmission chain 1 711 are respectively sleeved on the sides of gear 1 709 and gear 2 710 and meshed with gear 1 709 and gear 2 710. The first follower mechanism 7 is divided into two groups, and the two groups of first follower mechanisms 7 are symmetrically arranged on the inner bottom of the outer shell 1, and the other group of gear 2 710 is sleeved and fixedly arranged on the side of the shaft of chuck 2 4.

[0043] The second follower mechanism 8 includes a follower shaft 801, a rotating plate 802, a connecting column 803, a telescopic rod 804, a guide rail 805, a sliding column 806, a follower frame 807, a gear 3 808, a gear 4 809 and a transmission chain 810. The follower shaft 801 is rotatably arranged on the inner side of the outer shell 1, the rotating plate 802 is fixedly arranged on the end of the follower shaft 801 away from the outer shell 1, the connecting column 803 is fixedly arranged on the side of the rotating plate 802 away from the follower shaft 801, and the axial center distance between the follower shaft 801 and the connecting column 803 is the same as the axial center distance between the main neck axis B and the connecting rod neck axis A of the crankshaft.

[0044] The telescopic rod 804 is fixedly set on the inner bottom of the shell 1, the guide rail 805 is fixedly set on the output end of the telescopic rod 804, the sliding column 806 is slidably set on the inner side of the guide rail 805, the top of the sliding column 806 is fixedly set on the bottom of the support plate 5, and one end of the follower frame 807 is fixedly set on both sides of the sliding column 806. The end of the follower frame 807 away from the sliding column 806 is close to the inner top of the shell 1 and is fixedly connected to the end of the connecting column 803 away from the rotating plate 802.

[0045] Gear three 808 is sleeved and fixedly arranged on the side of the output end of the driving motor 2, gear four 809 is sleeved and fixedly arranged on the side of the follower shaft two 801, and the two ends of the transmission chain two 810 are respectively sleeved on the sides of gear three 808 and gear four 809 and meshed with gear three 808 and gear four 809. The second follower mechanism 8 is also divided into two groups and is symmetrically arranged on the inner bottom of the outer shell 1. The other group of gear four 809 is sleeved and fixedly arranged on the side of the shaft of the chuck two 4.

[0046] The transmission chain 1 711 and the transmission chain 2 810 may be toothed chains.

[0047] When using: Figure 7 As shown, there are generally four connecting rod neck shafts A of a car crankshaft, the two coaxial connecting rod neck shafts A in the middle form a group, and the two coaxial connecting rod neck shafts A at both ends form a group. Therefore, a total of four grinding mechanisms 6 are required to process the connecting rod neck shafts A at the same time. Because the directions of the two groups of connecting rod neck shafts A are exactly opposite, two different follow-up mechanisms are required to cooperate with the grinding mechanism 6 to polish the crankshaft.

[0048] When the crankshaft is polished, the rotation of the driving motor 2 drives the crankshaft to rotate. At the same time, the chuck 2 4 is connected to the crankshaft and also rotates synchronously. Then the gear 2 710 can drive the gear 1 709 to rotate through the transmission chain. The gear 1 709 drives the rotating plate 1 703 to rotate through the follower shaft 1 702, and then drives the connecting column 1 704 to rotate. The rotation of the connecting column 1 704 is transmitted to the lifting column 707. Here, the rotational motion of the connecting column 1 704 is decomposed into the lifting column 707 on the sliding frame. The lifting and sliding movement inside 706 and the reciprocating movement of the sliding frame 706 itself on the inside of the guide rail 705, the movement of the lifting column 707 and the sliding frame 706 drive the grinding mechanism 6 to move accordingly through the support plate 5, so that the grinding mechanism 6 can change its position accordingly with the rotation of the connecting rod neck shaft A while polishing the connecting rod neck shaft A, thereby making the contact force between the sanding belt 614 and the connecting rod neck shaft A unchanged, so that the grinding mechanism 6 can polish the connecting rod neck shaft A evenly.

[0049] The working mode of the second follower mechanism 8 is the same as that of the first follower mechanism 7. The difference is that when the second connecting column 803 changes the position of the grinding mechanism 6 by driving the follower frame 807, the rotation of the follower frame 807 following the second connecting column 803 is decomposed into the up and down movement of the telescopic rod 804 and the reciprocating sliding of the sliding column 806 inside the second guide rail 805.

[0050] Among them, the key point of the operation of the first follower mechanism 7 and the second follower mechanism 8 is that the axial distance between the follower shaft 1 702 and the connecting column 1 704 or the follower shaft 2 801 and the connecting column 2 803 is the same as the axial distance between the column neck axis and the connecting rod neck axis A of the crankshaft, and the follower shaft 1 702 and the follower shaft 2 801 crankshafts rotate synchronously, which makes the rotating structure composed of the follower shaft 1 702, the rotating plate 1 703 and the connecting column 1 704 or the rotating structure composed of the follower shaft 2 801, the rotating plate 2 802 and the connecting column 2 803 and two groups of different connecting rod neck axes A have the same rotation path, so that the grinding mechanism 6 can always move close to the connecting rod neck axis A.

[0051] When not in operation, the structure composed of the follower shaft 1 702, the rotating plate 1 703 and the connecting column 1 704 is exactly the same as the structure composed of the follower shaft 2 801, the rotating plate 2 802 and the connecting column 2 803. Figure 3 The positions of the two connecting rod neck shafts A are the same, so after the crankshaft is placed on the sanding belt 614, the positions of the two groups of connecting rod neck shafts A are exactly synchronized with the rotating structure composed of the follower shaft 1 702, the rotating plate 1 703 and the connecting column 1 704 or the rotating structure composed of the follower shaft 2 801, the rotating plate 2 802 and the connecting column 2 803.

[0052] The remaining structure is the same as that of Example 2.

[0053] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0054] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0055] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A polishing device for automobile parts production, characterized in that: include, A housing (1), a driving motor (2) being fixedly arranged on the inner wall of the housing (1), a chuck 1 (3) being fixedly arranged on the output end of the driving motor (2), a chuck 2 (4) being rotatably arranged on a side of the inner wall of the housing (1) directly opposite to the driving motor (2), and the chuck 1 (3) and the chuck 2 (4) being coaxially arranged; A support plate (5), the support plate (5) being arranged on the inner side of the outer shell (1), the top of the support plate (5) being provided with a grinding mechanism (6) for polishing a connecting rod neck shaft, the bottom of the support plate (5) being provided with a first follower mechanism (7) and a second follower mechanism (8) that rotate with the crankshaft, a plurality of support plates (5) being provided, and being mounted on the inner side of the outer shell (1) via the first follower mechanism (7) and the second follower mechanism (8), respectively.

2. The polishing device for automobile parts production according to claim 1, characterized in that: The grinding mechanism (6) comprises a rotating motor (601), a rotating roller (602), a support frame (603), a connecting plate (604), a first spring (605), a fixing frame (606), a rotating clamping plate (607), a guide roller (608), a first protrusion (609), a lifting plate (610), a top roller (611), a second protrusion (612), a second spring (613) and an abrasive belt (614), wherein the rotating motor (601) is fixedly arranged on a side of the support plate (5) via a bracket, and the rotating roller (602) is fixedly arranged on the rotating motor (601). ), the rotating motor (601) is used to drive the rotating roller (602) to rotate, the support frame (603) is provided with a pair of and symmetrically arranged on the top of the support plate (5), the support plate (5) is rotatably arranged on the top of the support plate (5) through a bracket, both sides of the support frame (604) are rotatably provided with connecting plates (604), the spring one (605) is provided with a pair and symmetrically arranged on both sides of the support frame (603), and the two ends of the spring one (605) on each side are respectively fixedly arranged on the opposite side of different connecting plates (604).

3. The polishing device for automobile parts production according to claim 2, characterized in that: The fixing frame (606) is fixedly arranged on the top of the support plate (5), and the fixing frame (606) is located between the two support frames (603). The rotating clamping plate (607) is rotatably arranged on the top of the fixing frame (606) through a bracket. A pair of rotating clamping plates (607) are provided and are symmetrically arranged on both sides of the connecting rod neck shaft during operation. The guide roller (608) is rotatably arranged at one end of the rotating clamping plate (607) away from the fixing frame (606). The protrusion (609) is fixedly arranged on the rotating clamping plate (607). The clamping plate (607) is close to one end of the fixing frame (606), the lifting plate (610) penetrates and is slidably arranged at the top center of the fixing frame (606), the top roller (611) is rotatably arranged at one end of the lifting plate (610) close to the connecting rod neck shaft, the second protrusion (612) is fixedly arranged on the side of the lifting plate (610) and slidably cooperates with the first protrusion (609), and the two ends of the second spring (613) are respectively fixedly arranged on the end of the lifting plate (610) and the inner wall of the fixing frame (606).

4. The polishing device for automobile parts production according to claim 3, characterized in that: The sanding belt (614) is respectively sleeved on the outer sides of the rotating roller (602), the support frame (603) and the guide roller (608); when the crankshaft is polished, the sanding belt (614) abuts against the connecting rod neck shaft; when the rotating roller (602) rotates, it can drive the sanding belt (614) to slide around the side of the support frame (603); a plurality of groups of the grinding mechanisms (6) are provided; each group of the grinding mechanisms (6) grinds different connecting rod neck shafts of the same crankshaft when in operation, so as to ensure polishing efficiency.

5. The polishing device for automobile parts production according to claim 4, characterized in that: The first follower mechanism (7) comprises a fixed plate (701), a follower shaft 1 (702), a rotating plate 1 (703), a connecting column 1 (704), a guide rail 1 (705), a sliding frame (706), a lifting column (707), a lifting slot (708), a gear 1 (709), a gear 2 (710) and a transmission chain 1 (711); the fixed plate (701) is fixedly arranged on the inner bottom of the housing (1); the follower shaft 1 (702) is fixedly arranged on the side of the fixed plate (701); the rotating plate is fixedly arranged on an end of the follower shaft 1 (702) away from the fixed plate (701); the connecting column 1 (704) is fixedly arranged on a side of the rotating plate away from the follower shaft 1 (702); and the axial center distance between the follower shaft 1 (702) and the connecting column 1 (704) is the same as the axial center distance between the main journal shaft and the connecting rod journal shaft of the crankshaft.

6. The polishing device for automobile parts production according to claim 5, characterized in that: The guide rail 1 (705) is fixedly arranged at the inner bottom of the housing (1); the sliding frame (706) is slidably arranged on the inner side of the guide rail 1 (705); the lifting column (707) is slidably arranged on the inner side of the sliding frame (706); one end of the connecting column 1 (704) away from the rotating plate 1 (703) is fixedly arranged on the side of the lifting column (707); the lifting groove (708) is opened on the side of the sliding frame (706); the connecting column 1 (704) is slidably arranged on the inner side of the lifting groove (708); and the top of the lifting column (707) is fixedly arranged on the bottom of the support plate (5).

7. The polishing device for automobile parts production according to claim 6, characterized in that: The gear one (709) is sleeved and fixedly arranged on the side of the follower shaft one (702), the gear two (710) is sleeved and fixedly arranged on the side of the output end of the driving motor (2), the two ends of the transmission chain one (711) are respectively sleeved on the sides of the gear one (709) and the gear two (710) and meshed with the gear one (709) and the gear two (710), the first follower mechanism (7) is divided into two groups, the two groups of the first follower mechanism (7) are symmetrically arranged on the inner bottom of the housing (1), and the other group of the gear two (710) is sleeved and fixedly arranged on the side of the shaft of the chuck two (4).

8. The polishing device for automobile parts production according to claim 7, characterized in that: The second follower mechanism (8) comprises a follower rotating shaft 2 (801), a rotating plate 2 (802), a connecting column 2 (803), a telescopic rod (804), a guide rail 2 (805), a sliding column (806), a follower frame (807), a gear 3 (808), a gear 4 (809) and a transmission chain 2 (810); the follower rotating shaft 2 (801) is rotatably arranged on the inner side of the housing (1); the rotating plate 2 (802) is fixedly arranged on an end of the follower rotating shaft 2 (801) away from the housing (1); the connecting column 2 (803) is fixedly arranged on a side of the rotating plate 2 (802) away from the follower rotating shaft 2 (801); and the axial center distance between the follower rotating shaft 2 (801) and the connecting column 2 (803) is the same as the axial center distance between the main journal shaft and the connecting rod journal shaft of the crankshaft.

9. The polishing device for automobile parts production according to claim 8, characterized in that: The telescopic rod (804) is fixedly arranged at the inner bottom of the housing (1); the second guide rail (805) is fixedly arranged at the output end of the telescopic rod (804); the sliding column (806) is slidably arranged at the inner side of the second guide rail (805); the top of the sliding column (806) is fixedly arranged at the bottom of the support plate (5); one end of the follower frame (807) is fixedly arranged at both sides of the sliding column (806); one end of the follower frame (807) away from the sliding column (806) is close to the inner top of the housing (1) and is fixedly connected to one end of the second connecting column (803) away from the second rotating plate (802).

10. The polishing device for automobile parts production according to claim 9, characterized in that: The gear three (808) is sleeved and fixedly arranged on the side of the output end of the driving motor (2), the gear four (809) is sleeved and fixedly arranged on the side of the follower shaft two (801), the two ends of the transmission chain two (810) are respectively sleeved on the sides of the gear three (808) and the gear four (809) and meshed with the gear three (808) and the gear four (809), the second follower mechanism (8) is also divided into two groups and symmetrically arranged on the inner bottom of the housing (1), and the other group of the gear four (809) is sleeved and fixedly arranged on the side of the shaft of the chuck two (4).

Images