Piston polishing device

Abstract

The utility model discloses a piston polishing device which comprises an installation table, two feeding mechanisms arranged on the installation table in a mirror image mode and a piston polishing mechanism arranged on the installation table and located between the two feeding mechanisms. The technical problems that a feeding mechanism on an existing polishing device special for the piston is poor in operation stability, and due to the fact that piston polishing procedures on the existing polishing device are various, abrasion of the device is large are solved. The feeding mechanism is simple in structure, scientific and reasonable in design and convenient to use, the first buffering telescopic pipe and the second buffering telescopic pipe are arranged and used for buffering the movement of the feeding mechanism, and the stability of the movement of the feeding mechanism is improved; the piston pin hole polishing device is provided with the two feeding mechanisms which are distributed in a mirror image mode, the two feeding mechanisms are matched with each other to polish a piston pin hole, and on the premise that the piston polishing quality is guaranteed, the piston polishing procedure is simplified, and device abrasion is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of piston polishing equipment, and in particular relates to a piston polishing device. Background Art

[0002] Before the piston is put into use, it needs to be fine-machined, that is, polished, to remove burrs or rough edges in the piston pin hole. Nowadays, a special polishing device is usually used to polish the piston to improve the piston polishing efficiency. In the special piston polishing device, the polishing rod is driven by the feed mechanism to reciprocate into the piston pin hole to polish the piston pin hole. However, the technical defects of some existing special piston polishing devices are as follows: the special piston polishing device has many piston polishing processes, which leads to greater wear of the device; during the use of the device, the feed mechanism has poor running stability, which leads to low piston polishing accuracy. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a piston polishing device to at least solve part of the above technical problems.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A piston polishing device comprises a mounting platform, two feeding mechanisms mirror-mounted on the mounting platform, and a piston polishing mechanism disposed on the mounting platform and located between the two feeding mechanisms; the feeding mechanism comprises a sliding mechanism disposed on the mounting platform, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism comprises a plurality of sliding rods disposed on the mounting platform and distributed parallel to each other, a slider and a connecting plate slidably disposed on the sliding rod, a fixing plate fixedly disposed on the sliding rod, a first buffer telescopic tube sleeved on the sliding rod and connected between the slider and the fixing plate, a second buffer telescopic tube sleeved on the sliding rod and connected between the slider and the connecting plate, and a linear motor disposed on the mounting platform and connected to the connecting plate.

[0006] Further, the piston polishing mechanism includes a feeding mechanism disposed on the mounting platform, a fixing mechanism disposed on the mounting platform and corresponding to the feeding mechanism for fixing the piston, and a discharging mechanism disposed on the mounting platform;

[0007] The feeding mechanism includes two fixed rods fixed on the mounting platform and distributed parallel to each other, a cylinder mounting plate fixed on one end of the fixed rods, a first cylinder mounted on the cylinder mounting plate, a mounting slide slidably arranged on the fixed rods and connected to the telescopic rod of the first cylinder, an extension rod arranged on the mounting slide, and an embedded column arranged on the extension rod and adapted to the inner hole of the piston.

[0008] Furthermore, the fixing mechanism includes a fixed block and a movable block which are arranged on the mounting platform and distributed up and down, and a second cylinder which is arranged at the bottom of the mounting platform and connected to the movable block to drive the movable block to move up and down; the fixed block and the movable block are respectively provided with a first limit groove and a second limit groove which are adapted to the piston.

[0009] Furthermore, a stabilizing block and a protective cover plate are provided on the mounting platform, the stabilizing block is located inside the protective cover plate, and a through hole A and a through hole B which are interconnected are respectively opened on the mounting platform and the stabilizing block, the second cylinder telescopic rod passes through the through hole A and the through hole B in sequence and extends into the protective cover plate, a connecting column is provided on the second cylinder telescopic rod, the connecting column extends outside the protective cover plate, and the movable block is arranged on one end of the connecting column which is located outside the protective cover plate.

[0010] Furthermore, the unloading mechanism includes a unloading groove opened on the mounting platform and communicated with the bottom of the mounting platform, a first baffle circumferentially surrounding the top of the unloading groove, a second baffle and a third baffle respectively connected to the first baffle, a unloading channel formed between the second baffle, the third baffle and the mounting platform and connected to the unloading groove, a fourth baffle and a fifth baffle respectively connected to the second baffle and the third baffle, and a temporary storage chamber formed between the fourth baffle, the fifth baffle and the mounting platform and connected to the unloading channel; the unloading groove is connected to an external piston storage box, and the fixing mechanism is located in the temporary storage chamber.

[0011] Furthermore, the piston polishing mechanism also includes a water spray pipe arranged on the mounting platform and corresponding to the fixing mechanism. The water spray pipe is connected to an external cold water source, and a water permeable hole is opened at the bottom of the temporary storage cavity.

[0012] Furthermore, the rotating mechanism includes a mounting plate arranged on the slider, a mounting seat and a limit seat arranged on the mounting plate, a mounting frame arranged on the mounting seat, a rotating drum movably passed through the mounting seat and extended out of the mounting seat, a limit rotating rod with one end rotatably arranged in the limit seat and the other end fixedly connected to the rotating drum, and a driving mechanism arranged on the mounting frame and connected to the limit rotating rod to drive the rotating drum to rotate; the polishing rod is arranged on the rotating drum.

[0013] Furthermore, the driving mechanism includes a driving motor arranged on the mounting frame, a first gear arranged on the driving shaft of the driving motor, a second gear arranged on the limiting rotating rod, and a chain sleeved between the first gear and the second gear.

[0014] Furthermore, the mounting frame includes a fixing frame arranged on the mounting seat, and a protective box arranged on the fixing frame; the driving motor is arranged on the fixing frame, and the protective box is provided with a yielding slot and a receiving cavity which are interconnected, and the side wall of the receiving cavity is provided with a chain yielding hole and a driving shaft yielding hole, and the driving shaft of the driving motor passes through the driving shaft yielding hole and extends into the receiving cavity, the first gear is located in the receiving cavity, the second gear is located in the yielding slot, and the chain passes through the chain yielding hole and is connected between the first gear and the second gear.

[0015] Furthermore, a threaded blind hole is provided on the rotating drum, and a base is threadedly connected to the threaded blind hole. The base includes a threaded block threadedly connected to the threaded blind hole, and a mounting block arranged on the threaded block; the mounting block is provided with a fixing hole, a first through hole and a second through hole that are interconnected, and a connecting block is fixed on the polishing rod, and the connecting block is fixed in the fixing hole. The polishing rod passes through the first through hole and the second through hole in sequence and extends out of the mounting block.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model has a simple structure, a scientific and reasonable design, and is easy to use. The utility model is provided with a first buffer telescopic tube and a second buffer telescopic tube, which are used to buffer the movement of the feed mechanism, thereby improving the stability of the movement of the feed mechanism; the utility model is provided with two feed mechanisms distributed in a mirror image to each other, and the two feed mechanisms cooperate with each other to grind the piston pin hole. Under the premise of ensuring the polishing quality of the piston, the piston polishing process is simplified and the wear of the device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view schematic diagram of the structure of the utility model.

[0019] Figure 2 This is the front view of the position relationship between the polishing rod and the piston when the piston is clamped on the fixing mechanism.

[0020] Figure 3 This is a schematic diagram when the piston is not fixed on the fixing mechanism.

[0021] Figure 4 It is a schematic diagram of the connecting column in the protective cover plate on the fixing mechanism.

[0022] Figure 5 This is the front view of the cylinder mounting plate.

[0023] Figure 6 Front view of the installed skateboard.

[0024] Figure 7 It is a top view showing that the temporary storage chamber, the discharge channel and the discharge slot are interconnected.

[0025] Figure 8 It is a top view of the position relationship between the water spray pipe and the piston.

[0026] Fig. 9 This is the main view of the mounting seat and the limit seat on the mounting plate.

[0027] Fig.10 This is a cross-sectional view of the fixed plate.

[0028] Fig.11 This is a cross-sectional view of the connecting plate.

[0029] Fig.12 This is a cross-sectional view of the slider.

[0030] Fig.13 This is a side view of the protective box.

[0031] Fig.14 It is a vertical cross-sectional view of the protective box.

[0032] Fig.15 A cross-sectional view of the protective box.

[0033] Fig.16 It is a schematic diagram of the limit rotating rod in the limit seat.

[0034] Fig.17 It is a cross-sectional view of the limit seat.

[0035] Fig.18 It is a cross-sectional view of the drum.

[0036] Fig.19 Schematic diagram of the connection between the base and the polishing rod.

[0037] Fig. 20 This is a cross-sectional view of the mounting base.

[0038] Fig.21 This is a diagram showing the position relationship between the linear motor and the slide rod on the mounting table.

[0039] Fig. 22 This is a schematic diagram of the process in which the piston is embedded on the embedding column and moves toward the fixing mechanism during loading.

[0040] Fig.23 This is a schematic diagram of the movable block moving close to the piston after the piston is embedded in the first limiting groove during loading.

[0041] Fig.24 It is a schematic diagram of the piston being clamped between the fixed block and the movable block.

[0042] Fig.25 It is a schematic diagram of the process when the embedded column is retracted from the piston.

[0043] Fig.26 This is a schematic diagram of the polishing rod on the left feed mechanism being screwed into the piston to grind the piston pin hole.

[0044] Fig. 27 It is a schematic diagram of the process in which the polishing rod on the left feed mechanism starts to be screwed out of the piston while the polishing rod on the right feed mechanism is simultaneously screwed into the piston from the other end of the piston pin hole.

[0045] Fig.28 This is a schematic diagram of the polishing rod on the right side feed mechanism being screwed into the piston pin hole to grind the piston pin hole.

[0046] Fig.29 This is a schematic diagram of the process of screwing the polishing rod on the right feed mechanism out of the piston pin hole.

[0047] The names corresponding to the reference numerals are:

[0048] 1-mounting table, 2-slide bar, 4-linear motor, 5-first buffer telescopic tube, 6-second buffer telescopic tube, 7-polishing rod, 8-slider, 9-fixed plate, 10-first set of holes, 11-connecting plate, 12-second set of holes, 13-mounting plate, 14-mounting seat, 15-limiting seat, 16-rotating cylinder, 17-limiting rotating rod, 18-mounting frame, 19-driving motor, 20-first gear, 21-second gear, 22-chain, 23-fixed frame, 24-protective box, 25-giving slot, 26-accommodating cavity, 27-chain giving way through hole, 28-driving shaft giving way through hole, 29-threaded blind hole, 30-base, 31-threaded block, 32-mounting block, 33-fixed hole, 34-first through hole, 35-second through hole, 36-connecting block, 37-sliding through hole, 38-rotating blind hole, 39-limiting blind hole, 40-limiting block, 50-installing through hole, 51-fixing rod, 52-cylinder mounting plate, 53-first cylinder, 54-installing slide plate, 55-extension rod, 56-embedded column, 57-fixing block, 58-movable block, 59-second cylinder, 60-first limiting groove, 61-second limiting groove, 62-stable block, 63-through hole A, 64-through hole B, 65-protective cover plate, 66-connecting column, 67-discharging notch, 68-first baffle, 69-second baffle, 70-third baffle, 71-discharging channel, 72-fourth baffle, 73-fifth baffle, 74-temporary storage chamber, 75-water permeable hole, 76-water spray pipe, 77-sealing groove, 78-sealing ring, 79-piston inner hole, 80-piston pin hole, 81-piston. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore they cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Example 1

[0053] like Figure 1-29 As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0054] In this embodiment 1, for the feeding mechanism, on the one hand, starting from the start-up of the linear motor 4, the second buffer telescopic tube 6 is compressed or stretched to buffer the thrust or tension of the linear motor 4 until the linear motor 4 runs smoothly. The linear motor applies a continuous and stable thrust or tension to the slider 8 through the compressed or stretched second buffer telescopic tube, and the slider slides smoothly under the force, and the slider drives the rotating mechanism and the polishing rod 7 to move synchronously and smoothly; on the other hand, during the sliding process of the slider, the first buffer telescopic tube 5 buffers the movement of the slider 8, so that the slider moves slowly, thereby improving the stability of the slider movement, and thereby improving the stability of the overall movement of the feeding mechanism.

[0055] For piston polishing, the utility model is provided with two feeding mechanisms which are distributed in mirror images with each other, and the two feeding mechanisms cooperate with each other to grind the piston pin hole. Under the premise of ensuring the quality of piston polishing, the piston polishing process is simplified and the wear of the device is reduced.

[0056] When polishing the piston 81, the polishing rod 7 on the left side of the feed mechanism is first screwed into the piston pin hole to grind the piston pin hole. When the polishing rod on the left side of the feed mechanism begins to be screwed out of the piston pin hole 80, the polishing rod on the right side of the feed mechanism is synchronously screwed into the piston pin hole from the other end of the piston pin hole 80 to grind the piston pin hole again. After the polishing rod on the right side of the feed mechanism is screwed out of the piston pin hole, the piston polishing is completed. The two feed mechanisms grind the piston in the process of screwing it in and out of the piston respectively. In this way, the piston undergoes four grinding processes to ensure the grinding quality of the piston 81.

[0057] In this embodiment 1, the slider 8 drives the polishing rod to move linearly while the rotating mechanism drives the polishing rod to rotate synchronously. When the polishing rod polishes the piston, the polishing rod rotates and extends into the piston pin hole or rotates and withdraws from the piston pin hole 80.

[0058] Example 2

[0059] like Figure 1-29 As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0060] The piston polishing mechanism includes a feeding mechanism disposed on the mounting platform 1, a fixing mechanism disposed on the mounting platform 1 and corresponding to the feeding mechanism for fixing the piston, and a discharging mechanism disposed on the mounting platform 1;

[0061] The feeding mechanism includes two fixed rods 51 fixed on the mounting platform 1 and distributed parallel to each other, a cylinder mounting plate 52 fixed on one end of the fixed rods 51, a first cylinder 53 mounted on the cylinder mounting plate 52, a mounting slide plate 54 slidably arranged on the fixed rods 51 and connected to the telescopic rod of the first cylinder 53, an extension rod 55 arranged on the mounting slide plate 54, and an embedded column 56 arranged on the extension rod 55 and adapted to the inner hole of the piston.

[0062] In this embodiment 2, the loading mechanism is used to load the piston to the fixing mechanism, and the fixing mechanism is used to fix the piston delivered by the loading mechanism so that the polishing rod on the feeding mechanism can polish the piston pin hole. The loading mechanism loads the piston and manually embeds the piston on the embedding housing 56. After that, the first cylinder 53 is started, and the telescopic rod of the first cylinder 53 pushes the installation slide 54 to slide on the fixing rod 51 toward the fixing mechanism. The installation slide 54 drives the piston to move synchronously until the piston on the embedding column 56 is embedded in the first limiting groove 60 on the fixing block 57 during the forward movement, and the loading is completed. Then the fixing mechanism fixes the piston, and the embedding housing 56 is retracted from the piston and away from the piston under the drive of the first cylinder 53, so as to facilitate the subsequent polishing of the piston.

[0063] Example 3

[0064] like Figure 1-29 As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0065] The piston polishing mechanism includes a feeding mechanism disposed on the mounting platform 1, a fixing mechanism disposed on the mounting platform 1 and corresponding to the feeding mechanism for fixing the piston, and a discharging mechanism disposed on the mounting platform 1;

[0066] The feeding mechanism includes two fixed rods 51 fixed on the mounting platform 1 and distributed parallel to each other, a cylinder mounting plate 52 fixed on one end of the fixed rods 51, a first cylinder 53 mounted on the cylinder mounting plate 52, a mounting slide plate 54 slidably arranged on the fixed rods 51 and connected to the telescopic rod of the first cylinder 53, an extension rod 55 arranged on the mounting slide plate 54, and an embedded column 56 arranged on the extension rod 55 and adapted to the inner hole of the piston.

[0067] The fixing mechanism includes a fixed block 57 and a movable block 58 which are arranged on the mounting platform 1 and distributed up and down, and a second cylinder 59 which is arranged at the bottom of the mounting platform 1 and connected to the movable block 58 to drive the movable block 58 to move up and down; the fixed block 57 and the movable block 58 are respectively provided with a first limiting groove 60 and a second limiting groove 61 which are adapted to the piston.

[0068] In this embodiment 3, when the feeding mechanism feeds the piston into the first limiting groove 60 on the fixed block 57, the second cylinder 59 drives the movable block 58 to move upward, so that the movable block 58 gradually approaches the piston until the piston is clamped in the second limiting groove 61 on the movable block 58. The piston is clamped between the fixed block 57 and the movable block 58, thereby achieving the purpose of fixing the piston.

[0069] Example 4

[0070] like Figure 1-29 As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0071] The piston polishing mechanism includes a feeding mechanism disposed on the mounting platform 1, a fixing mechanism disposed on the mounting platform 1 and corresponding to the feeding mechanism for fixing the piston, and a discharging mechanism disposed on the mounting platform 1;

[0072] The feeding mechanism includes two fixed rods 51 fixed on the mounting platform 1 and distributed parallel to each other, a cylinder mounting plate 52 fixed on one end of the fixed rods 51, a first cylinder 53 mounted on the cylinder mounting plate 52, a mounting slide plate 54 slidably arranged on the fixed rods 51 and connected to the telescopic rod of the first cylinder 53, an extension rod 55 arranged on the mounting slide plate 54, and an embedded column 56 arranged on the extension rod 55 and adapted to the inner hole of the piston.

[0073] The fixing mechanism includes a fixed block 57 and a movable block 58 which are arranged on the mounting platform 1 and distributed up and down, and a second cylinder 59 which is arranged at the bottom of the mounting platform 1 and connected to the movable block 58 to drive the movable block 58 to move up and down; the fixed block 57 and the movable block 58 are respectively provided with a first limiting groove 60 and a second limiting groove 61 which are adapted to the piston.

[0074] A stabilizing block 62 and a protective cover plate 65 are provided on the mounting platform 1. The stabilizing block 62 is located inside the protective cover plate 65. A through hole A63 and a through hole B64 which are interconnected are respectively provided on the mounting platform 1 and the stabilizing block 62. The telescopic rod of the second cylinder 59 passes through the through hole A63 and the through hole B64 in sequence and extends into the protective cover plate 65. A connecting column 66 is provided on the telescopic rod of the second cylinder 59. The connecting column 66 extends out of the protective cover plate 65. The movable block 58 is provided on one end of the connecting column 66 which is located outside the protective cover plate 65.

[0075] In this embodiment 4, the second cylinder 59 drives the movable block 58 to move upward to clamp the piston in the following principle: the second cylinder 59 is started, the telescopic rod on the second cylinder 59 extends upward and drives the connecting column 66 to move synchronously, and the connecting column 66 drives the movable block 58 to move synchronously until the second limit groove 61 on the movable block 58 is firmly fitted with the piston, and the movement stops. The protective cover plate 65 is used to protect the surroundings of the stabilizing block 62 to prevent the polished piston from falling to the surroundings of the stabilizing block 62 and causing accumulation, thereby avoiding the piston from affecting the movement of the telescopic rod of the second cylinder 59.

[0076] When the polishing of the piston is completed, the movable block moves downward under the drive of the second cylinder to cancel the fixation of the piston, and the piston slides from the movable block along the outer wall of the protective cover plate 65 into the temporary storage chamber 74.

[0077] The inner walls of through hole A63 and through hole B64 are respectively provided with sealing grooves 77, and sealing rings 78 are embedded in the sealing grooves 77. When polishing the piston, cooling water is used to cool the piston during the polishing process. The sealing ring 78 is used to seal the through hole A63 and through hole B64 to prevent the cooling water from dripping onto the second cylinder through the through hole A63 and through hole B64.

[0078] Example 5

[0079] like Figure 1-29As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0080] The piston polishing mechanism includes a feeding mechanism disposed on the mounting platform 1, a fixing mechanism disposed on the mounting platform 1 and corresponding to the feeding mechanism for fixing the piston, and a discharging mechanism disposed on the mounting platform 1;

[0081] The feeding mechanism includes two fixed rods 51 fixed on the mounting platform 1 and distributed parallel to each other, a cylinder mounting plate 52 fixed on one end of the fixed rods 51, a first cylinder 53 mounted on the cylinder mounting plate 52, a mounting slide plate 54 slidably arranged on the fixed rods 51 and connected to the telescopic rod of the first cylinder 53, an extension rod 55 arranged on the mounting slide plate 54, and an embedded column 56 arranged on the extension rod 55 and adapted to the inner hole of the piston.

[0082] The unloading mechanism includes a unloading slot 67 opened on the mounting platform 1 and communicating with the bottom of the mounting platform 1, a first baffle 68 circumferentially surrounding the top of the unloading slot 67, a second baffle 69 and a third baffle 70 respectively connected to the first baffle 68, a unloading channel 71 formed between the second baffle 69, the third baffle 70 and the mounting platform 1 and communicating with the unloading slot 67, a fourth baffle 72 and a fifth baffle 73 respectively connected to the second baffle 69 and the third baffle 70, and a temporary storage chamber 74 formed between the fourth baffle 72, the fifth baffle 73 and the mounting platform 1 and communicating with the unloading channel 71; the unloading slot 67 is connected to an external piston storage box, and the fixing mechanism is located in the temporary storage chamber 74.

[0083] In this embodiment 5, the piston is polished and slides from the movable block along the outer wall of the protective cover plate 65 into the temporary storage chamber 74. When a certain amount of pistons are accumulated in the temporary storage chamber 74, the piston in the temporary storage chamber 74 is moved into the discharge channel 71 with the help of a narrow tool plate, and then the piston is moved from the discharge channel 71 to the discharge slot 67, and the piston is stored in the external piston storage box through the discharge slot 67.

[0084] Example 6

[0085] like Figure 1-29 As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0086] The piston polishing mechanism includes a feeding mechanism disposed on the mounting platform 1, a fixing mechanism disposed on the mounting platform 1 and corresponding to the feeding mechanism for fixing the piston, and a discharging mechanism disposed on the mounting platform 1;

[0087] The feeding mechanism includes two fixed rods 51 fixed on the mounting platform 1 and distributed parallel to each other, a cylinder mounting plate 52 fixed on one end of the fixed rods 51, a first cylinder 53 mounted on the cylinder mounting plate 52, a mounting slide plate 54 slidably arranged on the fixed rods 51 and connected to the telescopic rod of the first cylinder 53, an extension rod 55 arranged on the mounting slide plate 54, and an embedded column 56 arranged on the extension rod 55 and adapted to the inner hole 79 of the piston.

[0088] The unloading mechanism includes a unloading slot 67 opened on the mounting platform 1 and communicating with the bottom of the mounting platform 1, a first baffle 68 circumferentially surrounding the top of the unloading slot 67, a second baffle 69 and a third baffle 70 respectively connected to the first baffle 68, a unloading channel 71 formed between the second baffle 69, the third baffle 70 and the mounting platform 1 and communicating with the unloading slot 67, a fourth baffle 72 and a fifth baffle 73 respectively connected to the second baffle 69 and the third baffle 70, and a temporary storage chamber 74 formed between the fourth baffle 72, the fifth baffle 73 and the mounting platform 1 and communicating with the unloading channel 71; the unloading slot 67 is connected to an external piston storage box, and the fixing mechanism is located in the temporary storage chamber 74.

[0089] The piston polishing mechanism also includes a water spray pipe 76 disposed on the mounting platform 1 and corresponding to the fixing mechanism. The water spray pipe 76 is connected to an external cold water source. A water permeable hole 75 is provided at the bottom of the temporary storage chamber 74 .

[0090] In this embodiment 6, the piston polishing process generates heat, and the water spray pipe 76 is used to spray cooling water to the piston polishing area to cool the piston polishing process, and the cooled waste water is discharged through the water permeable hole 75. The water permeable hole 75 is externally connected to a drainage pipe, and the drainage pipe drains the cooled waste water through the water permeable hole 75 to an external wastewater treatment area.

[0091] Example 7

[0092] like Figure 1-29 As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0093] The rotating mechanism includes a mounting plate 13 arranged on the slider 8, a mounting seat 14 and a limiting seat 15 arranged on the mounting plate 13, a mounting frame 18 arranged on the mounting seat 14, a rotating drum 16 movably passed through the mounting seat 14 and extended out of the mounting seat 14, a limiting rotating rod 17 with one end rotatably arranged in the limiting seat 15 and the other end fixedly connected to the rotating drum 16, and a driving mechanism arranged on the mounting frame 18 and connected to the limiting rotating rod 17 to drive the rotating drum 16 to rotate; the polishing rod 7 is arranged on the rotating drum 16.

[0094] In this embodiment 7, the fixing plate 9 is provided with a first set of holes 10 adapted to the slide bar 2, and the slide bar 2 is fixedly inserted into the first set of holes 10. The connecting plate 11 is provided with a second set of holes 12 adapted to the slide bar 2, and the slide bar 2 is movably inserted into the second set of holes 12. The slider 8 is provided with a sliding through hole 37 adapted to the slide bar 2 in the length direction, and the slide bar 2 is movably inserted into the sliding through hole 37.

[0095] One end of the limit rod 17 is rotationally limited in the limit seat 15, and the other end of the limit rod 17 is fixedly connected to the rotating drum 16. In this way, the limit rod 17 can limit the rotating drum 16 without affecting the rotation of the rotating drum 16 to prevent the rotating drum 16 from deviating during rotation.

[0096] A rotating blind hole 38 is provided in the limit seat 15, and the limit rotating rod 17 is rotatably provided in the rotating blind hole 38. The limit seat 15 is provided with a limit blind hole 39 connected to the rotating blind hole 38. The limit rotating rod 17 is provided with a limit block 40 adapted to the limit blind hole 39, and the limit block 40 is rotatably provided in the limit blind hole 39.

[0097] The mounting seat 14 is provided with a mounting through hole 50 , and the rotating drum 16 is inserted into the mounting through hole 50 .

[0098] Example 8

[0099] like Figure 1-29 As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0100] The rotating mechanism includes a mounting plate 13 arranged on the slider 8, a mounting seat 14 and a limiting seat 15 arranged on the mounting plate 13, a mounting frame 18 arranged on the mounting seat 14, a rotating drum 16 movably passed through the mounting seat 14 and extended out of the mounting seat 14, a limiting rotating rod 17 with one end rotatably arranged in the limiting seat 15 and the other end fixedly connected to the rotating drum 16, and a driving mechanism arranged on the mounting frame 18 and connected to the limiting rotating rod 17 to drive the rotating drum 16 to rotate; the polishing rod 7 is arranged on the rotating drum 16.

[0101] The driving mechanism includes a driving motor 19 disposed on the mounting frame 18 , a first gear 20 disposed on the driving shaft of the driving motor 19 , a second gear 21 disposed on the limiting rotating rod 17 , and a chain 22 sleeved between the first gear 20 and the second gear 21 .

[0102] In this embodiment 8, the driving motor 19 is a three-phase induction motor. The principle of the driving motor 19 driving the polishing rod 7 to rotate is: the driving motor 19 is started, the driving shaft of the driving motor 19 drives the first gear 20 to rotate, the first gear 20 drives the chain 22 to move, the chain 22 drives the second gear 21 to rotate, the second gear 21 drives the limiting rotating rod 17 to rotate, the limiting rotating rod 17 drives the rotating drum 16 to rotate, and the rotating drum 16 drives the polishing rod 7 to rotate synchronously.

[0103] Example 9

[0104] like Figure 1-29 As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0105] The rotating mechanism includes a mounting plate 13 arranged on the slider 8, a mounting seat 14 and a limiting seat 15 arranged on the mounting plate 13, a mounting frame 18 arranged on the mounting seat 14, a rotating drum 16 movably passed through the mounting seat 14 and extended out of the mounting seat 14, a limiting rotating rod 17 with one end rotatably arranged in the limiting seat 15 and the other end fixedly connected to the rotating drum 16, and a driving mechanism arranged on the mounting frame 18 and connected to the limiting rotating rod 17 to drive the rotating drum 16 to rotate; the polishing rod 7 is arranged on the rotating drum 16.

[0106] The driving mechanism includes a driving motor 19 disposed on the mounting frame 18 , a first gear 20 disposed on the driving shaft of the driving motor 19 , a second gear 21 disposed on the limiting rotating rod 17 , and a chain 22 sleeved between the first gear 20 and the second gear 21 .

[0107] The mounting frame includes a fixing frame 23 arranged on the mounting seat 14, and a protective box 24 arranged on the fixing frame 23; the driving motor 19 is arranged on the fixing frame 23, and the protective box 24 is provided with a yielding slot 25 and a receiving chamber 26 which are interconnected, and the side wall of the receiving chamber 26 is provided with a chain yielding hole 27 and a driving shaft yielding hole 28, and the driving shaft of the driving motor 19 passes through the driving shaft yielding hole 28 and extends into the receiving chamber 26, the first gear 20 is located in the receiving chamber 26, the second gear 21 is located in the yielding slot 25, and the chain 22 passes through the chain yielding hole 27 and is connected between the first gear 20 and the second gear 21.

[0108] In this embodiment 9, the protection box 24 is used to protect the moving first gear 20, the second gear 21 and the chain 22 to prevent people from being accidentally injured.

[0109] Example 10

[0110] like Figure 1-29As shown, the utility model provides a piston polishing device, which is characterized in that it includes a mounting table 1, two feeding mechanisms mirror-mounted on the mounting table 1, and a piston polishing mechanism disposed on the mounting table 1 and located between the two feeding mechanisms; the feeding mechanism includes a sliding mechanism disposed on the mounting table 1, and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism includes a plurality of sliding rods 2 disposed on the mounting table 1 and distributed parallel to each other, a slider 8 and a connecting plate 11 slidingly disposed on the sliding rod 2, a fixing plate 9 fixedly disposed on the sliding rod 2, a first buffer telescopic tube 5 sleeved on the sliding rod 2 and connected between the slider 8 and the fixing plate 9, a second buffer telescopic tube 6 sleeved on the sliding rod 2 and connected between the slider 8 and the connecting plate 11, and a linear motor 4 disposed on the mounting table 1 and connected to the connecting plate 11.

[0111] The rotating mechanism includes a mounting plate 13 arranged on the slider 8, a mounting seat 14 and a limiting seat 15 arranged on the mounting plate 13, a mounting frame 18 arranged on the mounting seat 14, a rotating drum 16 movably passed through the mounting seat 14 and extended out of the mounting seat 14, a limiting rotating rod 17 with one end rotatably arranged in the limiting seat 15 and the other end fixedly connected to the rotating drum 16, and a driving mechanism arranged on the mounting frame 18 and connected to the limiting rotating rod 17 to drive the rotating drum 16 to rotate; the polishing rod 7 is arranged on the rotating drum 16.

[0112] A threaded blind hole 29 is provided on the rotating drum 16, and a base 30 is threadedly connected to the threaded blind hole 29. The base 30 includes a threaded block 31 threadedly connected to the threaded blind hole 29, and a mounting block 32 arranged on the threaded block 31; the mounting block 32 is provided with a fixing hole 33, a first through hole 34 and a second through hole 35 that are interconnected, and a connecting block 36 is fixed on the polishing rod 7. The connecting block 36 is fixed in the fixing hole 33, and the polishing rod 7 passes through the first through hole 34 and the second through hole 35 in sequence and extends out of the mounting block 32.

[0113] In the present embodiment 10, the mounting block 32 is detachably connected to the threaded block 31 by bolts, and the polishing rod 7 is limited between the threaded block 31 and the mounting block 32 by the connecting block 36 and fixed to the mounting block 32. The connection between the polishing rod 7 and the mounting block 32 is detachable, so that the worn polishing rod can be replaced later.

[0114] The process of polishing the piston in the utility model is as follows:

[0115] The piston is embedded in the embedding column 56. After that, the first cylinder 53 is started, and the telescopic rod of the first cylinder pushes the installation slide plate 54 to slide on the fixing rod 51 in the direction close to the fixing mechanism. The installation slide plate drives the piston to move synchronously until the piston on the embedding column is embedded in the first limiting groove 60 on the fixing block during the forward movement. The second cylinder 59 is started, and the telescopic rod of the second cylinder pushes the movable block 58 to move upward until the second limiting groove 61 on the movable block is fixed on the piston. At this time, the piston is clamped between the fixing block 57 and the movable block, and the telescopic rod of the first cylinder retracts, so that the embedding column 56 is locked. The piston is retracted from the piston, and the polishing rod 7 on the left side of the feed mechanism is first screwed into the piston pin hole to grind the piston pin hole. When the polishing rod on the left side of the feed mechanism begins to be screwed out of the piston pin hole, the polishing rod on the right side of the feed mechanism is synchronously screwed into the piston pin hole from the other end of the piston pin hole to grind the piston pin hole again. After the polishing rod on the right side of the feed mechanism is screwed out of the piston pin hole, the piston polishing is completed. Subsequently, the movable block moves downward under the drive of the second cylinder to cancel the fixation of the piston, and the piston slides from the movable block along the outer wall of the protective cover plate into the temporary storage cavity. When the piston is blocked from falling, the blocked piston can be provoked with the help of a long thin rod, so that the piston can slide smoothly into the temporary storage cavity.

[0116] The linear motor 4, drive motor 19, first cylinder 53 and second cylinder 59 used in the utility model are all existing known electrical equipment and can be directly purchased and used on the market. The structure, circuit and control principle of the linear motor 4, drive motor 19, first cylinder 53 and second cylinder 59 are all existing known technologies. Therefore, the structure, circuit and control principle of the linear motor 4, drive motor 19, first cylinder 53 and second cylinder 59 will not be repeated here.

[0117] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, rather than limiting it, and certainly not limiting the patent scope of the present invention; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention; that is to say, any changes or embellishments made to the main design concept and spirit of the present invention that have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention; in addition, the direct or indirect application of the technical solution of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. A piston polishing device, characterized in that: The invention comprises a mounting platform (1), two feeding mechanisms mirror-imaged on the mounting platform (1), and a piston polishing mechanism disposed on the mounting platform (1) and located between the two feeding mechanisms; the feeding mechanism comprises a sliding mechanism disposed on the mounting platform (1), and a rotating mechanism disposed on the sliding mechanism; the sliding mechanism comprises a plurality of sliding rods (2) disposed on the mounting platform (1) and distributed parallel to each other, a slider (8) and a connecting plate (11) slidably disposed on the sliding rod (2), a fixing plate (9) fixedly disposed on the sliding rod (2), a first buffer telescopic tube (5) sleeved on the sliding rod (2) and connected between the slider (8) and the fixing plate (9), a second buffer telescopic tube (6) sleeved on the sliding rod (2) and connected between the slider (8) and the connecting plate (11), and a linear motor (4) disposed on the mounting platform (1) and connected to the connecting plate (11).

2. A piston polishing device according to claim 1, characterized in that: The piston polishing mechanism comprises a loading mechanism arranged on the mounting platform (1), a fixing mechanism arranged on the mounting platform (1) and corresponding to the loading mechanism for fixing the piston, and a discharging mechanism arranged on the mounting platform (1); The feeding mechanism comprises two fixed rods (51) fixedly arranged on a mounting platform (1) and arranged parallel to each other, a cylinder mounting plate (52) fixedly arranged on one end of the fixed rods (51), a first cylinder (53) mounted on the cylinder mounting plate (52), a mounting slide plate (54) slidably arranged on the fixed rods (51) and connected to the telescopic rod of the first cylinder (53), an extension rod (55) arranged on the mounting slide plate (54), and an embedded column (56) arranged on the extension rod (55) and adapted to the inner hole 79 of the piston.

3. A piston polishing device according to claim 2, characterized in that: The fixing mechanism comprises a fixed block (57) and a movable block (58) which are arranged on the mounting platform (1) and are distributed vertically, and a second cylinder (59) which is arranged at the bottom of the mounting platform (1) and is connected to the movable block (58) to drive the movable block (58) to move up and down; the fixed block (57) and the movable block (58) are respectively provided with a first limiting groove (60) and a second limiting groove (61) which are adapted to the piston.

4. A piston polishing device according to claim 3, characterized in that: The mounting platform (1) is provided with a stabilizing block (62) and a protective cover plate (65), the stabilizing block (62) is located inside the protective cover plate (65), the mounting platform (1) and the stabilizing block (62) are respectively provided with a through hole A (63) and a through hole B (64) which are connected to each other, the telescopic rod of the second cylinder (59) passes through the through hole A (63) and the through hole B (64) in sequence and extends into the protective cover plate (65), the telescopic rod of the second cylinder (59) is provided with a connecting column (66), the connecting column (66) extends outside the protective cover plate (65), and the movable block (58) is arranged on one end of the connecting column (66) which is located outside the protective cover plate (65).

5. A piston polishing device according to claim 2, characterized in that: The unloading mechanism comprises a unloading slot (67) opened on the mounting platform (1) and communicating with the bottom of the mounting platform (1), a first baffle (68) circumferentially surrounding the top of the unloading slot (67), a second baffle (69) and a third baffle (70) respectively connected to the first baffle (68), a unloading channel (71) formed between the second baffle (69), the third baffle (70) and the mounting platform (1) and communicating with the unloading slot (67), a fourth baffle (72) and a fifth baffle (73) respectively connected to the second baffle (69) and the third baffle (70), and a temporary storage chamber (74) formed between the fourth baffle (72), the fifth baffle (73) and the mounting platform (1) and communicating with the unloading channel (71); the unloading slot (67) is connected to an external piston storage box, and the fixing mechanism is located in the temporary storage chamber (74).

6. A piston polishing device according to claim 5, characterized in that: The piston polishing mechanism also includes a water spray pipe (76) arranged on the mounting platform (1) and corresponding to the fixing mechanism. The water spray pipe (76) is connected to an external cold water source. A water permeable hole (75) is provided at the bottom of the temporary storage chamber (74).

7. A piston polishing device according to claim 1, characterized in that: The rotating mechanism comprises a mounting plate (13) arranged on a slider (8), a mounting seat (14) and a limiting seat (15) arranged on the mounting plate (13), a mounting frame (18) arranged on the mounting seat (14), a rotating drum (16) movably inserted into the mounting seat (14) and extending out of the mounting seat (14), a limiting rotating rod (17) with one end rotatably arranged in the limiting seat (15) and the other end fixedly connected to the rotating drum (16), and a driving mechanism arranged on the mounting frame (18) and connected to the limiting rotating rod (17) to drive the rotating drum (16) to rotate; and a polishing rod (7) is arranged on the rotating drum (16).

8. A piston polishing device according to claim 7, characterized in that: The driving mechanism comprises a driving motor (19) arranged on a mounting frame (18), a first gear (20) arranged on a driving shaft of the driving motor (19), a second gear (21) arranged on a limit rotating rod (17), and a chain (22) sleeved between the first gear (20) and the second gear (21).

9. A piston polishing device according to claim 8, characterized in that: The mounting frame comprises a fixing frame (23) arranged on the mounting seat (14), and a protection box (24) arranged on the fixing frame (23); the driving motor (19) is arranged on the fixing frame (23); a mutually communicating clearance slot (25) and a receiving chamber (26) are provided on the protection box (24); a chain clearance through hole (27) and a driving shaft clearance through hole (28) are provided on the side wall of the receiving chamber (26); a driving shaft of the driving motor (19) passes through the driving shaft clearance through hole (28) and extends into the receiving chamber (26); a first gear (20) is located in the receiving chamber (26); a second gear (21) is located in the clearance slot (25); and a chain (22) passes through the chain clearance through hole (27) and is connected between the first gear (20) and the second gear (21).

10. A piston polishing device according to claim 7, characterized in that: A threaded blind hole (29) is provided on the rotating drum (16), a base (30) is connected to the threaded blind hole (29) through a thread, the base (30) comprises a threaded block (31) threadedly connected to the threaded blind hole (29), and a mounting block (32) arranged on the threaded block (31); the mounting block (32) is provided with a fixing hole (33), a first through hole (34) and a second through hole (35) which are interconnected, a connecting block (36) is fixed on the polishing rod (7), the connecting block (36) is fixed in the fixing hole (33), and the polishing rod (7) passes through the first through hole (34) and the second through hole (35) in sequence and extends out of the mounting block (32).

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