阅读说明：本技术 一种多工位回转式钢桶内腔打磨装置 (Multi-station rotary polishing device for inner cavity of steel drum ) 是由 范昇 成辉 于 2020-07-27 设计创作，主要内容包括：本发明公开了一种多工位回转式钢桶内腔打磨装置,以减小占地面积,提高生产效率。包括安装于主机架上的上下桶单元、桶回转驱动单元、卡桶单元、桶旋转驱动单元及桶内腔打磨单元。所述桶回转驱动单元包括回转电机、回转传动机构、回转主动齿轮、回转齿圈、回转圈、回转支架及回转轴,回转齿圈、回转圈及回转轴同心；卡桶单元包括多组卡桶机构；桶内腔打磨单元包括移位拖车、拖车移位驱动机构及与卡桶机构数量相同的多组打磨机构；每组卡桶机构确定的桶的中心线及上下桶单元上桶最高点所确定的桶中心线位于回转齿圈的同心圆的等分点上。该装置在同一圆周上设置多个钢桶内腔打磨工位,并设置有上下桶工位,大大缩小了占地面积。(The invention discloses a multi-station rotary type steel drum inner cavity polishing device, which aims to reduce the occupied area and improve the production efficiency. The barrel clamp comprises an upper barrel unit, a lower barrel unit, a barrel rotation driving unit, a barrel clamping unit, a barrel rotation driving unit and a barrel inner cavity polishing unit which are arranged on a main frame. The barrel rotation driving unit comprises a rotation motor, a rotation transmission mechanism, a rotation driving gear, a rotation gear ring, a rotation support and a rotation shaft, and the rotation gear ring, the rotation ring and the rotation shaft are concentric; the card barrel unit comprises a plurality of groups of card barrel mechanisms; the barrel inner cavity polishing unit comprises a shift trailer, a trailer shift driving mechanism and a plurality of groups of polishing mechanisms with the same number as the barrel clamping mechanisms; the central line of the barrel determined by each group of barrel clamping mechanisms and the central line of the barrel determined by the highest point of the upper barrel on the upper barrel unit and the lower barrel unit are positioned on the equal division points of the concentric circles of the rotary gear rings. The device sets up a plurality of steel drum inner chambers on same circumference and polishes the station to be provided with bucket station from top to bottom, reduced area greatly.)

1. A multi-station rotary polishing device for an inner cavity of a steel drum is characterized by comprising an upper drum unit, a lower drum unit, a drum rotary driving unit, a drum clamping unit, a drum rotary driving unit and a drum inner cavity polishing unit, wherein the upper drum unit and the lower drum unit are arranged on a main rack;

the barrel rotation driving unit comprises a rotation motor, a rotation transmission mechanism, a rotation driving gear, a rotation gear ring, a rotation support and a rotation shaft, and the rotation gear ring, the rotation ring and the rotation shaft are concentric; an output shaft of the rotary motor is connected with the rotary driving gear through the rotary transmission mechanism, the rotary driving gear is meshed with the rotary gear ring, and the rotary gear ring is fixedly connected with the rotary ring and the rotary support;

the barrel rotation driving unit comprises a barrel rotation driving motor, a coupler and a barrel rotation driving gear, and the output end of the barrel rotation driving motor is fixedly connected with the barrel rotation driving gear through the coupler; the coupler is in rolling connection with the rotating shaft;

the clamping barrel unit comprises a plurality of groups of clamping barrel mechanisms, a rotary fixing sleeve is arranged outside a rotating part in each group of clamping barrel mechanisms in a rolling connection mode, and the rotary fixing sleeve in each group of clamping barrel mechanisms is fixedly connected with the rotary ring, the rotary support and the rotary shaft respectively;

the rotating parts in each group of the barrel clamping mechanisms are respectively and fixedly connected with barrel rotating driven gears, and each barrel rotating driven gear is respectively meshed with the barrel rotating driving gear; an end face clutch is arranged on the side face of each barrel rotation driven gear; the end face clutch is in key connection with a rotating component in the barrel clamping mechanism, and the end face clutch is driven by a clutch driving mechanism to realize connection or separation of the end face clutch and the barrel rotating driven gear; the clutch driving mechanism is arranged on the rotary bracket;

the barrel inner cavity polishing unit comprises a shift trailer, a trailer shift driving mechanism and a plurality of groups of polishing mechanisms with the same number as the barrel clamping mechanisms; each group of polishing mechanisms corresponds to one group of clamping barrel mechanisms; each group of polishing mechanisms comprises a brush assembly and a polishing rotary driving motor, the brush assembly is connected with the polishing rotary driving motor through a polishing transmission mechanism, a plurality of groups of polishing mechanisms are arranged on the shifting trailer, and the shifting trailer driving mechanism is connected with the shifting trailer to drive the shifting trailer to move;

after combination, the central line of the barrel determined by each group of barrel clamping mechanisms and the central line of the barrel determined by the highest point of the upper barrel unit and the lower barrel unit are positioned on the bisector of the concentric circles of the rotary gear rings.

2. The multi-station rotary type steel drum inner cavity grinding device according to claim 1, wherein each set of drum clamping mechanism comprises a clamping rod, a sleeve, a jaw driving mechanism, a plurality of jaws 30 and connecting bodies with the same number as the jaws, each jaw is hinged with the corresponding movable connecting body, and each connecting body is fixedly connected with the end of the sleeve; the end part of the clamping rod is rotatably connected with a connecting disc, and a plurality of clamping claws are respectively hinged with the connecting disc; the rotary fixing sleeve 28 is mounted outside the sleeve and is in rolling connection with the sleeve; the clamping jaw driving mechanism is fixedly connected with the clamping rod; the end face clutch is connected with the sleeve key.

3. The multi-station rotary type steel drum inner cavity grinding device according to claim 1, wherein the upper and lower drum units comprise a displacement driving mechanism, a lifting driving mechanism, a displacement frame, a drum supporting frame and a drum shifting mechanism, and the drum shifting mechanism and the lifting driving mechanism are respectively mounted on the displacement frame; the displacement driving mechanism drives the displacement frame to move, and the lifting driving mechanism drives the barrel supporting frame to lift; the shifting frame is arranged on the main frame through a shifting guide wheel and a shifting guide rail which are in sliding fit.

4. The multi-station rotary type steel drum inner cavity grinding device according to claim 2, wherein the clutch driving mechanism comprises a clutch driver and a first shifting fork, the clutch driver is connected with the first shifting fork, and the clutch driver drives the first shifting fork to move so as to realize connection or separation of the sleeve and the drum rotating driven gear; the clutch driver is a pneumatic driver or a hydraulic driver.

5. The multi-station rotary type steel drum inner cavity grinding device according to claim 2, wherein the drum shifting mechanism comprises a second shifting fork and a drum shifting driver, and the drum shifting driver is connected with the second shifting fork to drive the second shifting fork to move; the barrel poking driver is a pneumatic driver or a hydraulic driver.

6. The multi-station rotary type steel drum inner cavity grinding device according to claim 2, wherein the connecting assembly comprises a plurality of connecting plates and connecting bolts.

7. The multi-station rotary steel drum inner cavity grinding device as claimed in claim 2, wherein the brush assembly comprises a brush disc, a brush rod and a fixed sleeve, the brush rod is connected with the fixed sleeve in a rolling manner; the fixed sleeve is fixedly arranged on the shifting trailer; one end of the brush rod is connected with the brush disc, and the other end of the brush rod is connected with the polishing rotary driving motor through the polishing transmission mechanism.

8. The multi-station rotary steel drum inner cavity polishing device as claimed in claim 2, wherein the shift trailer is connected to the main frame via a polishing guide wheel and a polishing guide rail.

9. A multi-station rotary steel drum inner cavity grinding device according to claim 2, wherein the trailer shift driving mechanism comprises a shift driving motor, a shift transmission shaft, a shift transmission mechanism, a rack mounted on the main frame, and a shift gear mounted on the shift transmission shaft, the shift transmission shaft is mounted on the shift trailer, and the shift gear is engaged with the rack; the displacement driving motor is connected with the displacement transmission shaft through the displacement transmission mechanism.

Technical Field

The invention relates to the technical field of steel drum renovation, in particular to a multi-station rotary type steel drum inner cavity polishing device.

Background

When the steel drum refurbishing line is actually produced, single-process production or series production of full-automatic production lines can be used. When single-process production (inner cavity polishing) is adopted, the processing time is not considered, but the whole equipment is long and the occupied area is large; when being connected with the full-automatic production line in series, the steel barrels are polished one by one according to the sequence, so that the total processing time of the whole production line is increased, and the production efficiency is low.

Disclosure of Invention

The invention provides a multi-station rotary type steel drum inner cavity polishing device aiming at the technical defects in the prior art, so that the occupied area is reduced, and the production efficiency is improved.

The technical scheme adopted for realizing the purpose of the invention is as follows:

a multi-station rotary polishing device for an inner cavity of a steel drum comprises an upper drum unit, a lower drum unit, a drum rotary driving unit, a drum clamping unit, a drum rotary driving unit and a drum inner cavity polishing unit, wherein the upper drum unit and the lower drum unit are arranged on a main rack;

the barrel rotation driving unit comprises a rotation motor, a rotation transmission mechanism, a rotation driving gear, a rotation gear ring, a rotation support and a rotation shaft, and the rotation gear ring, the rotation ring and the rotation shaft are concentric; an output shaft of the rotary motor is connected with the rotary driving gear through the rotary transmission mechanism, the rotary driving gear is meshed with the rotary gear ring, and the rotary gear ring is fixedly connected with the rotary ring and the rotary support;

the barrel rotation driving unit comprises a barrel rotation driving motor, a coupler and a barrel rotation driving gear, and the output end of the barrel rotation driving motor is fixedly connected with the barrel rotation driving gear through the coupler; the coupler is in rolling connection with the rotating shaft;

the clamping barrel unit comprises a plurality of groups of clamping barrel mechanisms, a rotary fixing sleeve is arranged outside a rotating part in each group of clamping barrel mechanisms in a rolling connection mode, and the rotary fixing sleeve in each group of clamping barrel mechanisms is fixedly connected with the rotary ring, the rotary support and the rotary shaft respectively;

the rotating parts in each group of the barrel clamping mechanisms are respectively and fixedly connected with barrel rotating driven gears, and each barrel rotating driven gear is respectively meshed with the barrel rotating driving gear; an end face clutch is arranged on the side face of each barrel rotation driven gear; the end face clutch is in key connection with a rotating component in the barrel clamping mechanism, and the end face clutch is driven by a clutch driving mechanism to realize connection or separation of the end face clutch and the barrel rotating driven gear; the clutch driving mechanism is arranged on the rotary bracket;

the barrel inner cavity polishing unit comprises a shift trailer, a trailer shift driving mechanism and a plurality of groups of polishing mechanisms with the same number as the barrel clamping mechanisms; each group of polishing mechanisms corresponds to one group of clamping barrel mechanisms; each group of polishing mechanisms comprises a brush assembly and a polishing rotary driving motor, the brush assembly is connected with the polishing rotary driving motor through a polishing transmission mechanism, a plurality of groups of polishing mechanisms are arranged on the shifting trailer, and the shifting trailer driving mechanism is connected with the shifting trailer to drive the shifting trailer to move;

after combination, the central line of the barrel determined by each group of barrel clamping mechanisms and the central line of the barrel determined by the highest point of the upper barrel unit and the lower barrel unit are positioned on the bisector of the concentric circles of the rotary gear rings.

Each group of the barrel clamping mechanisms comprises a clamping rod, a sleeve, a jaw driving mechanism, a plurality of jaws 30 and connecting bodies the number of which is the same as that of the jaws, each jaw is respectively hinged with the corresponding movable connecting body, and each connecting body is respectively fixedly connected with the end part of the sleeve; the end part of the clamping rod is rotatably connected with a connecting disc, and a plurality of clamping claws are respectively hinged with the connecting disc; the rotary fixing sleeve 28 is mounted outside the sleeve and is in rolling connection with the sleeve; the clamping jaw driving mechanism is fixedly connected with the clamping rod; the end face clutch is connected with the sleeve key.

3. The multi-station rotary type steel drum inner cavity grinding device according to claim 1, wherein the upper and lower drum units comprise a displacement driving mechanism, a lifting driving mechanism, a displacement frame, a drum supporting frame and a drum shifting mechanism, and the drum shifting mechanism and the lifting driving mechanism are respectively mounted on the displacement frame; the displacement driving mechanism drives the displacement frame to move, and the lifting driving mechanism drives the barrel supporting frame to lift; the shifting frame is arranged on the main frame through a shifting guide wheel and a shifting guide rail which are in sliding fit.

The clutch driving mechanism comprises a clutch driver and a first shifting fork, the clutch driver is connected with the first shifting fork, and the clutch driver drives the first shifting fork to act to realize the connection or separation of the sleeve and the barrel rotating driven gear; the clutch driver is a pneumatic driver or a hydraulic driver.

The barrel shifting mechanism comprises a second shifting fork and a barrel shifting driver, and the barrel shifting driver is connected with the second shifting fork to drive the second shifting fork to move; the barrel poking driver is a pneumatic driver or a hydraulic driver.

The connecting assembly is composed of a plurality of connecting plates and connecting bolts.

The brush assembly comprises a brush disc, a brush rod and a fixed sleeve, and the brush rod is in rolling connection with the fixed sleeve; the fixed sleeve is fixedly arranged on the shifting trailer; one end of the brush rod is connected with the brush disc, and the other end of the brush rod is connected with the polishing rotary driving motor through the polishing transmission mechanism.

The shift trailer is connected with the main frame through a grinding guide wheel and a grinding guide rail which are matched with each other.

The trailer displacement driving mechanism comprises a displacement driving motor, a displacement transmission shaft, a displacement transmission mechanism, a rack arranged on the main rack and a displacement gear arranged on the displacement transmission shaft, the displacement transmission shaft is arranged on the displacement trailer, and the displacement gear is meshed with the rack; the shift driving motor is connected with the shift transmission shaft through the shift transmission mechanism

Compared with the prior art, the invention has the beneficial effects that:

1. the multi-station rotary steel drum inner cavity polishing device is combined through reasonable structural design, a plurality of steel drum inner cavity polishing stations are arranged on the same circumference, upper drum stations and lower drum stations are arranged, the number of the stations arranged in a three-dimensional space is large, and the occupied area is greatly reduced. Meanwhile, the production efficiency can be improved.

2. The multi-station rotary steel drum inner cavity polishing device is connected with a full-automatic production line in parallel, the total processing time can be shortened, and the production efficiency is greatly improved.

Drawings

FIG. 1 is a front view of the multi-station rotary steel drum inner cavity polishing device of the present invention;

FIG. 2 is a left side view of the multi-station rotary steel drum inner cavity polishing device according to the present invention;

FIG. 3 is a K-direction view of the multi-station rotary steel drum inner cavity polishing device according to the present invention;

FIG. 4 is a Z-Z view of the multi-station rotary steel drum inner cavity polishing device of the present invention.

Detailed Description

The invention is described in detail below with reference to the figures and specific examples.

The structure schematic diagram of the multi-station rotary steel drum inner cavity polishing device is shown in fig. 1-4, and comprises an upper drum unit, a lower drum unit, a drum rotary driving unit, a drum clamping unit, a drum rotary driving unit and a drum inner cavity polishing unit which are arranged on a main frame 16.

The barrel rotation driving unit comprises a rotation motor 10, a rotation transmission mechanism, a rotation driving gear 12, a rotation gear ring 11, a rotation ring 13, a rotation support 18 and a rotation shaft 17, wherein the rotation gear ring 11, the rotation ring 13 and the rotation shaft 17 are concentric. The output shaft of the rotary motor 10 is connected with the rotary driving gear 12 through the rotary transmission mechanism, the rotary driving gear 12 is meshed with the rotary gear ring 11, and the rotary gear ring 11 is fixedly connected with the rotary ring 13. The rotary motor 10 is started to drive the rotary driving gear 12, the rotary gear ring 11 and the rotary ring 13 to rotate through the rotary transmission mechanism.

The drum rotation driving unit includes a drum rotation driving motor 14, a coupling 15, and a drum rotation driving gear 19, and an output end of the drum rotation driving motor 14 is fixedly connected to the drum rotation driving gear 19 through the coupling 15; the coupling 15 is in rolling connection with the swivel shaft 17.

The clamping barrel unit comprises a plurality of groups of clamping barrel mechanisms, a rotary fixing sleeve 28 is arranged outside a rotating part in each group of clamping barrel mechanisms in a rolling connection mode, and the rotary fixing sleeve 28 in each group of clamping barrel mechanisms is fixedly connected with the rotary ring 13, the rotary support 18 and the rotary shaft 17 respectively.

The rotating parts in each set of barrel clamping mechanisms are respectively and fixedly connected with barrel rotating driven gears 24, and each barrel rotating driven gear 24 is respectively meshed with the barrel rotating driving gear 19. The side of each of the tub rotation driven gears 24 is provided with an end face clutch 23, respectively. The end face clutch 23 is in key connection with a rotating component in the barrel clamping mechanism, and the end face clutch 23 is driven by a clutch driving mechanism to realize connection or separation of the end face clutch 23 and the barrel rotating driven gear 24. The clutch drive mechanism is mounted on the swivel support 18.

The barrel inner cavity polishing unit comprises a shift trailer 36, a trailer shift driving mechanism and a plurality of groups of polishing mechanisms with the same number as the barrel clamping mechanisms. Each group of grinding mechanism corresponds to one group of clamping barrel mechanism. Every group grinding machanism includes brush subassembly and the rotatory driving motor 44 of polishing, the brush subassembly through polish drive mechanism 35 with the rotatory driving motor 44 of polishing is connected, the multiunit grinding machanism install in on the aversion trailer 36, aversion trailer driving mechanism with the aversion trailer 36 is connected the drive the aversion trailer removes.

After combination, the central line of the barrel determined by each group of barrel clamping mechanisms and the central line of the barrel determined by the highest point of the upper barrel unit and the lower barrel unit are positioned on the bisector of the concentric circles of the rotary gear ring 11. Namely: the bisector of the concentric circle of each rotary gear ring 11 is the position of one station. Taking quartering as an example, the card barrel unit is arranged as shown in fig. 2, the lowermost bisector is an upper barrel station a and a lower barrel station a, the other three bisectors are barrel clamping stations B1, B2 and B3, the barrel inner cavity grinding unit is arranged as shown in fig. 4, and three barrel brushing mechanisms C1, C2 and C3 are arranged corresponding to each barrel clamping mechanism.

The rotating part in the card barrel mechanism is determined according to different types of the used clamps. In this embodiment, each set of the barrel clamping mechanism includes a clamping rod 21, a sleeve 27, a jaw driving mechanism 20, a plurality of jaws 30 and connecting bodies 29 with the same number as the jaws, each jaw 30 is hinged to the corresponding movable connecting body 29, and each connecting body 29 is fixedly connected to an end of the sleeve 27. The end part of the clamping rod 21 is rotatably connected with a connecting disc, and the clamping jaws 30 are hinged to the connecting disc respectively. The rotating fixing sleeve 28 is mounted on the outside of the sleeve 27 and is connected with the sleeve 27 in a rolling manner through a bearing 26. The jaw driving mechanism 20 is fixedly connected with the clamping rod 21; the face clutch 23 is keyed to the sleeve 27. The jaw driving mechanism 20 may employ an air cylinder or an oil cylinder.

The upper barrel unit and the lower barrel unit comprise a displacement driving mechanism 4, a lifting driving mechanism 2, a displacement frame 1, a barrel supporting frame 5 and a barrel shifting mechanism, and the barrel shifting mechanism and the lifting driving mechanism 2 are respectively arranged on the displacement frame 1. The displacement driving mechanism 4 is connected with the displacement frame 1 through a connecting piece 3 to drive the displacement frame 1 to move, and the lifting driving mechanism 2 drives the bucket supporting frame 5 to lift. The shifting frame 1 is arranged on the main frame through a shifting guide wheel 6 and a shifting guide rail 7 which are in sliding fit. In this embodiment, the displacement driving mechanism 4 and the lifting driving mechanism 2 adopt a pneumatic driving mechanism or a hydraulic driving mechanism, and may adopt an air cylinder or an oil cylinder. The shift driving mechanism 4 works to drive the moving frame 1 to move back and forth, so that the upper barrel and the lower barrel are in place. The lifting driving mechanism 2 works to make the barrel ascend and descend so as to realize barrel loading and barrel unloading. The barrel shifting mechanism works to ensure that the upper barrel is accurately positioned.

The clutch driving mechanism can adopt a structure in the prior art. In this embodiment, the clutch driving mechanism includes a clutch driver 22 and a first shifting fork 25, the clutch driver 22 is connected to the first shifting fork 25, and the clutch driver 22 drives the first shifting fork 25 to move so as to connect or disconnect the end face clutch 23 and the barrel rotation driven gear 24. The clutch actuator 22 is a pneumatic actuator or a hydraulic actuator.

The barrel shifting mechanism comprises a second shifting fork 8 and a barrel shifting driver 9, and the barrel shifting driver 9 is connected with the second shifting fork 8 to drive the second shifting fork 8 to move. The barrel poking driver is a pneumatic driver or a hydraulic driver. The barrel shifting driver acts to drive the second shifting fork to feed the barrel into the jaw of the barrel clamping mechanism.

The polishing mechanism can adopt the polishing mechanism commonly used in the field of the existing steel drum renovation treatment. In this embodiment, the brush assembly includes a brush disc 31, a brush rod 32 and a fixing sleeve 33, and the brush rod 32 and the fixing sleeve 33 are connected by rolling through a front set of bearings 34 and a rear set of bearings 34. The fixing sleeve 33 is fixedly arranged on the displacement trailer 36; one end of the brush rod 32 is fixedly connected with the brush disc 31, and the other end of the brush rod is connected with the polishing rotary driving motor 44 through the polishing transmission mechanism 35. In this embodiment, the grinding transmission mechanism 35 is a belt transmission mechanism or a chain transmission mechanism.

The shift trailer 36 is connected to the main frame by mating sanding guides 40 and sanding guides 41.

In this embodiment, the trailer shift driving mechanism includes a shift driving motor 37, a shift transmission shaft 43, a shift transmission mechanism 39, a rack 42 mounted on the main frame, and a shift gear 45 mounted on the shift transmission shaft 43, wherein the shift transmission shaft 43 is mounted on the shift trailer 36 through a bearing seat 38, and the shift gear 45 is engaged with the rack 42. The displacement drive motor 37 is connected to the displacement transmission shaft 43 via the displacement transmission mechanism 39. The shift driving motor 37 drives the shift transmission shaft 43 and the shift gear 45 thereon to rotate through the shift transmission mechanism 39, and drives the shift gear 45 to drive the shift trailer 36 to move along the rack 42.

When the device is used, a steel barrel processed in the previous process is placed on the barrel supporting frame 5 of the upper barrel unit and the lower barrel unit, the shifting driving mechanism 4 acts to drive the shifting frame and the barrel supporting frame and the lifting driving mechanism on the shifting frame to move together, the steel barrel is conveyed to the upper barrel station, the lifting driving mechanism 2 acts to lift the barrel, and the barrel shifting driving mechanism acts to convey the barrel to a barrel clamping point. The jaw driving mechanism 20 acts to drive the clamping rod 21, the connecting disc connected with the clamping rod and the jaws 30 to act, and the steel barrel is gripped. At this time, the end face clutch 23 is in a disengaged state from the tub rotation driven gear 24. The barrel rotating motor 10 is started to drive the rotating driving gear 12, the gear ring 11, the rotating ring 13 and the rotating support 18, and the rotating fixing sleeve 28, the barrel clamping mechanism and the barrel rotating driven gear 24 are driven by the rotating ring 13 and the rotating support 18 to rotate around the rotating shaft to a machining station. The clutch driving mechanism acts to drive the end face clutch 23 to be connected with the barrel rotation driven gear 24. The tub rotation driving motor 14 is started, the tub rotation driving gear 19 is driven by the coupling 15, and thus the tub rotation driven gear 24, the end face clutch 23, and the end face clutch 23 drive the sleeve 27, the jaw 30, and the tub to rotate by the key connected to the sleeve. The shift driving motor 37 drives the shift transmission shaft 43 and the shift gear 45 thereon to rotate through the shift transmission mechanism 39, and drives the shift gear 45 to drive the shift trailer 36 to move along the rack 42. Simultaneously, drive the brush subassembly on the trailer that shifts and remove together, the brush head gets into the steel drum in, polishes the steel drum inner wall. After polishing, the shifting driving motor rotates reversely to drive the brush assembly on the shifting trailer to exit from the barrel. Then, the clutch driving mechanism operates to separate the end face clutch 23 from the tub rotation driven gear 24. A drum rotating motor 10 of the drum rotating driving unit is started to drive a rotating driving gear 12, a gear ring 11, a rotating ring 13 and a rotating support 18, and the rotating fixing sleeve 28, the drum clamping mechanism and a drum rotating driven gear 24 are driven by the rotating ring 13 and the rotating support 18 to rotate together around a rotating shaft to the next processing station. After the barrel feeding mechanism rotates, the steel barrel at the lowest processing station is aligned to the barrel supporting frame of the upper barrel unit and the lower barrel unit, the clamping jaw driving mechanism moves to loosen the barrel and fall onto the barrel supporting frame, and the displacement driving mechanism 4 moves to drive the displacement frame, the barrel supporting frame arranged on the displacement frame, the lifting driving mechanism and the barrel to move together, so that barrel feeding is realized. And continuously repeating the processes to finish the polishing treatment of the inner wall of the steel drum.

The inner cavity polishing device adopts a rotary design, so that the number of stations arranged on a three-dimensional space is large, and the occupied area is reduced. Through the multi-station rotary type steel drum inner cavity grinding device connected with the full-automatic production line in parallel, the total production time can be shortened, and the labor efficiency is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.