CN109500275A - A kind of conversion system - Google Patents

Abstract

The invention discloses a kind of conversion systems, including rolling bearing seat, support frame, rotating unit, grasp device, rotate inner disc, pneumoelectric rotary joint and lifting device, top surface of support frame is fixed with rotation inner disc, rotating unit is set to outside rotation inner disc, rotating unit and rotation inner disc rotation connection, lifting device is also fixed on support frame, lifting device is located inside rotating unit, lifting device upper end and rotating unit are realized by rolling bearing seat to be rotatablely connected, pneumoelectric rotary joint is arranged inside rolling bearing seat, rotating unit upper end bottom is fixed with several grasp devices along annular, rolling bearing seat and grasp device are realized by tracheae to be connected；Multiple grasp devices may be implemented the synchronous transposition of multistation, and pneumoelectric rotary joint is that system power supply supplies, and guarantee electric wire and tracheae will not due to rotation and lifting acts knotting snarling, the operation very simple of whole system is conveniently.

Description

A kind of conversion system

Technical field

The present invention relates to product transposition technical fields, more specifically, it relates to a kind of conversion system.

Background technique

In industrial production now, for product between different processes transport generally by gripper robot from correspondence It takes out and is put into another procedure again in the device of process, in this case just need to be separately provided a handgrip between each process Robot, production cost is excessively high, and needs to carry out ex-situ operations between multiple working procedure sometimes, and a robot will realize more simultaneously The crawl of procedure replaces placement again；Common machines generally can only at most rotate 180 °, and when rotation, electric wire or tracheae can be wound, Influence the flexibility of device；The operation of machine is not easy enough, needs to expend a large amount of time energy of operator.

Summary of the invention

In view of the deficiencies of the prior art, the present invention intends to provide a kind of conversion system, have the special feature that: Easy to operate, rotatable 360 °, can multiplexing bit manipulation.

To achieve the above object, the present invention provides the following technical scheme that

A kind of conversion system, including pedestal and support frame, chassis ground, base top surface are fixedly connected with support frame bottom surface, Top surface of support frame is fixed with rotation inner disc, and rotating unit is equipped on the outside of rotation inner disc, and rotating unit and rotation inner disc rotation connect It connects, the lower end at the top of support frame is fixed with driving device, and top surface of support frame is equipped with the motor slot of perforation along the vertical direction, driving Device passes through motor slot and engages connection with rotating unit, and lifting device is also fixed on support frame, and lifting device is located at rotation Inside unit, it is fixed with rolling bearing seat at the top of lifting device, lifting device is realized with rotating unit by rolling bearing seat Rotation connection, rolling bearing seat is interior to be equipped with pneumoelectric rotary joint, and rotating unit upper end edge annular is fixed with several and promptly fills It sets, pneumoelectric rotary joint lower end is fixedly connected with lifting device top surface, and pneumoelectric rotary joint upper end and grasp device pass through tracheae Connection.

By using above-mentioned technical proposal, pneumoelectric rotary joint guarantees electric wire while this system rotates 360 ° With tracheae will not tangled up and knotted, will not influence the use of system, pneumoelectric rotary joint is divided into the movable part of upper end and consolidating for lower end Determine portion, fixed part is fixedly connected with lifting device, lifting device be it is non-rotary, only in vertical direction carry out lifting activity, it is living Dynamic portion is grasp device power supply gas supply, and rotating unit is rotated in the horizontal plane, in the vertical direction by lifting device reality Existing synchronization lifting moves, and device is equipped with several grasp devices, crawl, transposition and placement behaviour while realizing multistation Make, movement is completely the same, realizes completely transposition by rotation, lifting and sliding three simple movements, is more readily understood, operates It is simpler.

Further, rolling bearing seat includes lantern ring, shell and ball, and lantern ring realizes that rotation connects by ball and shell It connects, lantern ring is located at interior of shell, protrudes into interior of shell at the top of lifting device and is fixedly connected with the inner sidewall of lantern ring, and pneumoelectric rotation connects Head is located at interior of shell.

By using above-mentioned technical proposal, lifting device is not rotated, and is only gone up and down, and pneumoelectric rotary joint is system power supply confession Gas, lifting device and rotating unit are realized by rolling bearing seat and are rotatablely connected.

Further, rotating unit includes driven gear, guide post, sliding unit, connection frame, position-limited rack and rotation slot, Driven gear is set on the outside of rotation inner disc, and driven gear and rotation inner disc rotation connection, driven gear flank are nibbled with driving device Close, the top surface of driven gear is fixed with setter plate, the top surface of setter plate along annular, be vertically fixed with several guide posts, lead Column sequentially passes through sliding unit, connection frame and position-limited rack, and sliding unit and connection frame are all slidably connected with guide post, limit It is fixedly connected at the top of frame and guide post, is fixedly connected at the top of sliding unit with connection frame bottom, connection frame is located at below position-limited rack, turns Dynamic slot penetrates through position-limited rack, and rolling bearing seat is also cross sliding unit and connection frame, and rolling bearing seat is simultaneously and sliding unit It is fixedly connected with connection frame.

By using above-mentioned technical proposal, position-limited rack and setter plate limit the distance of sliding unit, and guide post then limits The route direction of lifting, more scientific stabilization ensure that system to article pickup position and the accuracy for putting part position, rotation slot For the rotation of coupled system, overall construction is more scientific.

Further, driving device includes driving motor and driving gear, and driving motor is fixed at the top of support frame Lower end, the shaft of driving motor pass through motor slot and are fixedly connected with driving gear, and driving gear is engaged with driven gear.

By using above-mentioned technical proposal, by traditional pivoting support bearing structure, that is, pass through two of position fixation Gear realizes that revolution acts, and driving gear engages with driven gear, then drives driven tooth by motor driven driving gear Wheel and component connected to it rotate synchronously.

Further, lifting device includes lifting cylinder, set block and lifting connecting shaft, and lifting cylinder bottom is fixed at It on support frame, is fixedly connected at the top of set block bottom and lifting cylinder, connect, rise with the bottom bolts of lifting connecting shaft at the top of set block It drops connecting shaft and is inserted into rolling bearing seat, go up and down the lateral wall at the top of connecting shaft and be fixedly connected with the inner sidewall of lantern ring, lifting connection The top surface of axis is fixedly connected with the bottom surface of pneumoelectric rotary joint.

By using above-mentioned technical proposal, is gone up and down and guaranteed by the entire lifting device of flexible drive of lifting cylinder The end portion of pneumoelectric rotary joint is fixed.

Further, grasp device includes sliding fixed block, sliding bar, promptly cylinder, handgrip and cylinder attachment base, is slided Dynamic fixed block and promptly cylinder are all fixed at the bottom surface of the top plate of sliding unit, and sliding bar horizontally passes through sliding and fixes Block, sliding bar are slidably connected with sliding fixed block, and one end of sliding bar is fixedly connected with handgrip, and handgrip is also solid with cylinder attachment base Fixed connection, the one end of cylinder attachment base far from handgrip are connect with promptly bolt cylinder, and handgrip is symmetrically disposed in sliding unit top The both ends of corresponding position on plate.

By using above-mentioned technical proposal, promptly Telescopic-cylinder realizes the close of two handgrips and far from movement, Jin Ershi Show the crawl of handgrip and unclasps.

Further, lifting cylinder can be substituted for lifting cylinder.

By using above-mentioned technical proposal, lifting device is hydraulically operated type and is converted to pneumatic type, is adapted to Different scene conditions.

Further, the quantity at least two of guide post.

By using above-mentioned technical proposal, guide post quantity is more, and the accuracy of system is higher.

Further, the quantity at least two of grasp device.

By using above-mentioned technical proposal, the corresponding station of a handgrip, the handgrip works for carrying out ex-situ operations more Position is more.

Further, the engagement system of driving gear and driven gear can be internal messing and be also possible to external toothing.

By using above-mentioned technical proposal, the mode of internal messing can suitably reduce the volumetric spaces of system occupancy.

Detailed description of the invention

Fig. 1 is a kind of general structure schematic diagram of embodiment provided by the invention；

Fig. 2 is a kind of support frame structure diagram of embodiment provided by the invention；

Fig. 3 is a kind of rotating unit of embodiment provided by the invention and lifting device attachment structure schematic diagram；

Fig. 4 is a kind of driving device structure schematic diagram of embodiment provided by the invention；

Fig. 5 is a kind of lifting device structure schematic diagram of embodiment provided by the invention；

Fig. 6 is a kind of grasp device structural schematic diagram of embodiment provided by the invention；

Fig. 7 is a kind of rolling bearing holder structure cross-sectional view of embodiment provided by the invention；

Fig. 8 is that a kind of driving gear of embodiment provided by the invention and the cutting of driven gear internal gearing structure are illustrated Figure；

In figure: 1, pedestal；2, support frame；21, inner disc is rotated；22, motor slot；23, lifting support；24, lifting groove；3, turn Moving cell；31, driven gear；311, setter plate；32, guide post；33, sliding unit；34, connection frame；35, position-limited rack；36, it rotates Slot；4, driving device；41, driving motor；42, driving gear；5, lifting device；51, lifting cylinder；52, block is covered；53, it goes up and down Connecting shaft；6, grasp device；61, fixed block is slided；62, sliding bar；63, cylinder is firmly grasped；64, handgrip；65, cylinder attachment base； 7, pneumoelectric rotary joint；8, rolling bearing seat；81, lantern ring；82, shell；83, ball.

Specific embodiment

Embodiment 1:

Below in conjunction with attached drawing 1-8, invention is further described in detail.

Shown in a kind of conversion system, as shown in Figure 1, Figure 2, Fig. 3 and Fig. 5, including pedestal 1 and support frame 2, pedestal 1 are grounded, bottom 1 top surface of seat is fixedly connected with 2 bottom surface of support frame, and 2 top surface of support frame is fixed with rotation inner disc 21, is rotated and is equipped on the outside of inner disc 21 Rotating unit 3, rotating unit 3 and rotation inner disc 21 are rotatablely connected, and the platform board lower end on support frame 2 is fixed with driving device 4,2 top surface of support frame is equipped with the motor slot 22 of perforation and the lifting groove 24 of perforation along the vertical direction, and driving device 4 passes through motor slot 22 engage connection with rotating unit 3, and lifting support 23 is also fixed on support frame 2, lifting is fixed on lifting support 23 Device 5, lifting device 5 pass through lifting groove 24, and lifting device 5 is located inside rotating unit 3, and rotation is equipped at the top of lifting device 5 Bearing block 8, lifting device 5 are inserted into 8 lower end of rolling bearing seat, and 5 top of lifting device and the inner sidewall of 8 lower end of rolling bearing seat are solid Fixed connection, rotating unit 3 are fixedly connected with 8 lateral wall of rolling bearing seat, and lifting device 5 and rotating unit 3 pass through rolling bearing Seat 8 realizes rotation connection, is equipped with pneumoelectric rotary joint 7 in rolling bearing seat 8,3 upper end edge annular of rotating unit is fixed with three Group grasp device 6,7 lower end of pneumoelectric rotary joint is fixedly connected with 5 top surface of lifting device, 7 upper end of pneumoelectric rotary joint with firmly grasp Device 6 is realized by tracheae and is connected.

As shown in Fig. 3, Fig. 5 and Fig. 7, rolling bearing seat 8 includes lantern ring 81, shell 82 and ball 83, and lantern ring 81 passes through Ball 83 and shell 82, which are realized, to be rotatablely connected, and lantern ring 81 is located inside shell 82, and rolling bearing seat 8 is inserted at the top of lifting device 5 And be fixedly connected with 81 inner sidewall of lantern ring, pneumoelectric rotary joint 7 is located inside shell 82.

As shown in Fig. 1, Fig. 3 and Fig. 5, rotating unit 3 includes driven gear 31, guide post 32, sliding unit 33, connection frame 34, position-limited rack 35 and rotation slot 36, driven gear 31 are external gear pump, and driven gear 31 is set to 21 outside of rotation inner disc, Driven gear 31 and rotation inner disc 21 are rotatablely connected, and driven gear 31 also with 4 external toothing of driving device, consolidate by 31 top surface of driven gear Surely be equipped with setter plate 311, the top surface of setter plate 311 along annular, be vertically fixed with several guide posts 32, guide post 32 sequentially passes through Sliding unit 33, connection frame 34 and position-limited rack 35, sliding unit 33 and connection frame 34 are all slidably connected with guide post 32, limit It is fixedly connected at the top of position frame 35 and guide post 32,33 top of sliding unit is fixedly connected with 34 bottom of connection frame, and connection frame 34 is located at 35 lower section of position-limited rack, rotation slot 36 penetrate through position-limited rack 35, and rolling bearing seat 8 is also cross sliding unit 33, connection frame 34 and turns Dynamic bearing seat 8 is also fixedly connected with both parts.

As shown in Figure 2 and Figure 4, driving device 4 includes driving motor 41 and driving gear 42, and driving motor 41 is fixed at The lower end of supporting table on support frame 2, the shaft of driving motor 41 pass through motor slot 22 and are fixedly connected with driving gear 42, driving tooth Wheel 42 and 31 external toothing of driven gear.

If Fig. 5 and Fig. 7 lifting device 5 includes lifting cylinder 51, set block 52 and lifting connecting shaft 53,51 bottom of lifting cylinder Portion is fixed on 5 top surface of lifting device, is covered and is fixedly connected at the top of 52 bottom of block and lifting cylinder 51,52 top of set block and lifting The bottom bolts of connecting shaft 53 connect, and the top of the lifting connecting shaft 53 is fixedly connected with the bottom of the rolling bearing seat 8, It going up and down connecting shaft 53 and is inserted into rolling bearing seat 8, the lateral wall at 53 top of lifting connecting shaft is fixedly connected with the inner sidewall of lantern ring 81, The top surface of lifting connecting shaft 53 is fixedly connected with the bottom surface of pneumoelectric rotary joint 7.

As shown in Fig. 1, Fig. 3 and Fig. 6, grasp device 6 includes that eight pieces of sliding fixed blocks 61, four sliding bars 62, Liang Tai are grabbed Tight 63, two handgrips 64 of cylinder and two cylinder attachment bases 65, four pieces sliding fixed block 61, one promptly 63, two, cylinder 62, handgrips 64 of sliding bar and a cylinder attachment base 65 are a complete functional module, packet in every group of grasp device 6 Containing two such functional modules, the two functional modules are symmetrical arranged and are all fixed at the bottom surface of 33 top plate of sliding unit, Eight pieces of sliding fixed blocks 61 are uniformly equally spacedly arranged, and every sliding bar 62 horizontally passes through corresponding two pieces of slidings Fixed block 61, sliding bar 62 are slidably connected with sliding fixed block 61, and one end of sliding bar 62 is fixedly connected with handgrip 64, sliding bar 62 other end is equipped with anticreep seat, and handgrip 64 divides for fixing end and gripper end, and the gripper end of handgrip 64 is on one side with cambered, handgrip 64 fixing end is of an L-shaped structure with gripper end to be connect, and the fixing end of handgrip 64 is fixedly connected with cylinder attachment base 65, cylinder connection 65 one end far from handgrip 64 of seat are bolted with promptly cylinder 63, are firmly grasped cylinder 63 for two and are oppositely arranged, the direction phase of stretching, extension Instead, the gentle pipe of live wire is promptly connected between cylinder 63 and pneumoelectric rotary joint 7, three groups of grasp devices 6 are to go up and down the several of top plate What center is the center of circle, uniformly equally spacedly along annular spread in the bottom end of promptly top plate.

In the present embodiment, the 6-200W that the production of Xiamen lappingout Automation Elements Co., Ltd can be selected in driving motor 41 is miniature The standard raise-lower hydraulic oil of the correspondence size of Xuan Yu hydraulic machinery factory, Taixing City production can be selected in serial motors, lifting cylinder 51 Cylinder, promptly the minitype cylinder of Shenzhen market day honor manipulator accessory factory sale can be selected in cylinder 63, and pneumoelectric rotary joint 7 can be selected silent Inspire confidence in the MK type pneumoelectric rotary joint 7 of the corresponding specification size of imperial scientific and technological flagship store's sale.

Working principle: under original state, connection frame 34 tightly touch position-limited rack 35, and lifting device 5 passes through with rotating unit 3 Rolling bearing seat 8 realizes the operational mode that lifting device 5 is fixed, rotating unit 3 rotates freely, and starts lifting cylinder 51, rotation Unit 3 is static, and lifting cylinder 51 is shunk, and sliding unit 33 declines along guide post 32, and when dropping to certain altitude, gas is firmly grasped in starting Cylinder 63, pneumoelectric rotary joint 7 are whole system power supply gas supply, and promptly cylinder 63 drives handgrip 64 to complete grasping movement, due to grabbing Hand 64 be L-type structure and two handgrips 64 working in coordination it is opposite be on one side arc, the object of crawl be generally cylinder or In circular basket, the inside is placed with workpiece or product, and after the completion of crawl, promptly cylinder 63 stops shrinking, and lifting cylinder 51 is opened Begin to stretch, sliding unit 33 is driven to rise, after rising to certain altitude, stopping movement starting driving motor 41, two teeth engaged Wheel starts turning, and then rotating unit 3 is driven to rotate, and in whole process, lifting device 5 remain stationary state, and rotation only has The upper end of rotating unit 3 and pneumoelectric rotary joint 7, after rotation transposition, lifting cylinder 51 is shunk, and is crawled the contact of part bottom and is placed After table top, the promptly stretching, extension of cylinder 63 release, grasp device 6 unclamps object, after object is still in the plane after transposition, by system Original state is returned, a complete ex-situ operations are so far completed.

Pneumoelectric rotary joint 7 divides upper part and fixed end portion for rotation, supplies for whole system power supply, under End part is fixedly connected with the top of lifting connecting shaft 53, and upper part is connect with promptly cylinder 63 by tracheae and electric wire, and As rotating unit 3 rotates.

Embodiment 2

Difference from example 1 is that as shown in figure 8, the engagement system of driving gear 42 and driven gear 31 becomes For internal messing, driven gear 31 has been substituted for inside engaged gear by external gear pump, and rotation inner disc 21 is arranged in driven gear 31 Outside and rotate inner disc 21 size be also suitably adjusted, rotation inner disc 21 still and driven gear 31 be rotatablely connected, electricity The position of trough 22 is also correspondingly adjusted.

In the present embodiment, the engagement system between gear becomes internal messing from external toothing, and the mode of internal messing can be appropriate The volumetric spaces that reduction system occupies.

Embodiment 3

Difference from example 1 is that lifting cylinder 51 is changed to lifting cylinder.

In the present embodiment, oil cylinder small in size and contribute it is big, can constant speed and speed change, the adjustment of power output also teaches conveniently, transmission Freedom degree it is higher, but maintenance cost and installation cost are all higher, and have the trouble of oil temperature and pollution；Cylinder is easy to control, valence Lattice are lower, and energy acquirement facilitates but power is small, and is unable to reach the effect of speed stabilizing, also select on demand.Lifting cylinder is optional The Standard Cylinder produced with Wuxi Huatong Pneumatic Manufacture Co., Ltd..

In conclusion the invention has the following advantages:

1, in the case where realizing 360 ° of rotations, electric wire can be effectively prevented by pneumoelectric rotary joint 7 or tracheae knots The case where winding, occurs；

2, whole system is easy to operate, separate to should be readily appreciated that；

3, multistation is grabbed, is replaced, placing simultaneously, more efficient；

4, the connection type multiplicity between component, the driving method multiplicity of system, is adapted to more situations and demand；

5, it takes up little area, it is powerful, crawl robot can be replaced, cost is cheaper.

It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (10)

1. a kind of conversion system, including pedestal (1) and support frame (2), it is characterised in that: pedestal (1) ground connection, the pedestal (1) top surface is fixedly connected with support frame as described above (2) bottom surface, and support frame as described above (2) top surface is fixed with rotation inner disc (21), described It rotates and is equipped with rotating unit (3) on the outside of inner disc (21), the rotating unit (3) and the rotation inner disc (21) are rotatablely connected, institute It states the lower end at the top of support frame (2) to be fixed with driving device (4), support frame as described above (2) top surface is equipped with perforation along the vertical direction Motor slot (22), the driving device (4) passes through the motor slot (22) and with the rotating unit (3) engages connection, described It is also fixed on support frame (2) lifting device (5), the lifting device (5) is located at the rotating unit (3) inside, described It is fixed with rolling bearing seat (8) at the top of lifting device (5), the lifting device (5) and the rotating unit (3) are described in Rolling bearing seat (8) realizes rotation connection, is equipped with the pneumoelectric rotary joint (7), the rotation in the rolling bearing seat (8) Unit (3) upper end edge annular is fixed with several grasp devices (6), pneumoelectric rotary joint (7) lower end and the lifting Device (5) top surface is fixedly connected, and pneumoelectric rotary joint (7) upper end is connect with the grasp device (6) by tracheae.

2. a kind of conversion system according to claim 1, it is characterised in that: the rolling bearing seat (8) includes lantern ring (81), shell (82) and ball (83), the lantern ring (81) are realized by the ball (83) and the shell (82) and are rotated Connection, the lantern ring (81) are located at the shell (82) inside, the inside at lifting device (5) top and the lantern ring (81) Wall is fixedly connected, and it is internal that the pneumoelectric rotary joint (7) is located at the shell (82).

3. a kind of conversion system according to claim 2, it is characterised in that: the rotating unit (3) includes driven gear (31), guide post (32), sliding unit (33), connection frame (34), position-limited rack (35) and rotation slot (36), the driven gear (31) be external gear pump, the driven gear (31) is set on the outside of the rotation inner disc (21), the driven gear (31) and Rotation inner disc (21) rotation connection, the driven gear (31) are also engaged with the driving device (4), the driven gear (31) top surface is fixed with setter plate (311), and the top surface of the setter plate (311) is fixed with several along annular, vertically The guide post (32), the guide post (32) sequentially pass through the sliding unit (33), the connection frame (34) and the limit Frame (35), the sliding unit (33) and the connection frame (34) are all slidably connected with the guide post (32), the limit It is fixedly connected at the top of frame (35) and the guide post (32), is fixed at the top of the sliding unit (33) with the connection frame (34) bottom Connection, the connection frame (34) are located at below the position-limited rack (35), and the rotation slot (36) penetrates through the position-limited rack (35), institute Rolling bearing seat (8) is stated also cross the sliding unit (33) and the connection frame (34), the rolling bearing seat (8) is same When be fixedly connected with the sliding unit (33) and the connection frame (34).

4. a kind of conversion system according to claim 3, it is characterised in that: the driving device (4) includes driving motor (41) and driving gear (42), the driving motor (41) are fixed at the lower end at the top of support frame as described above (2), the driving electricity The shaft of machine (41) pass through the motor slot (22) be fixedly connected with the driving gear (42), the driving gear (42) and from Moving gear (31) engagement.

5. a kind of conversion system according to claim 4, it is characterised in that: the lifting device (5) includes lifting cylinder (51), it covers block (52) and lifting connecting shaft (53), lifting cylinder (51) bottom is fixed on support frame as described above (2), It is fixedly connected at the top of set block (52) bottom and the lifting cylinder (51), is connected at the top of the set block (52) with the lifting The bottom bolts of axis (53) connect, and the lifting connecting shaft (53) is inserted into the rolling bearing seat (8), the lifting connecting shaft (53) lateral wall at the top of is fixedly connected with the inner sidewall of the lantern ring (81), it is described lifting connecting shaft (53) top surface with it is described The bottom surface of pneumoelectric rotary joint (7) is fixedly connected.

6. a kind of conversion system according to claim 5, it is characterised in that: the grasp device (6) includes that sliding is fixed Block (61), sliding bar (62), promptly cylinder (63), handgrip (64) and cylinder attachment base (65), the sliding fixed block (61) It is all fixed at the bottom surface at the top of the sliding unit (33) with promptly cylinder (63), the sliding bar (62) is along level side To the sliding fixed block (61) is passed through, the sliding bar (62) is slidably connected with the sliding fixed block (61), the sliding One end of bar (62) is fixedly connected with the handgrip (64), and the handgrip (64) is symmetrically disposed in the sliding unit (33) even The both ends of socket part position, the handgrip (64) are also fixedly connected with the cylinder attachment base (65), and the cylinder attachment base (65) is remote One end from the handgrip (64) is bolted with promptly cylinder (63).

7. a kind of conversion system according to claim 6, it is characterised in that: the lifting cylinder (51) is substituted for lifting air Cylinder.

8. a kind of conversion system according to claim 7, it is characterised in that: the quantity of the guide post (32) is at least two It is a.

9. a kind of conversion system according to claim 8, it is characterised in that: the quantity of the grasp device (6) is at least Two.

10. a kind of conversion system according to claim 9, it is characterised in that: the driven gear (31) replaces with interior nibble Close gear.