CN117087935A - Pitch-changing equipment for metal shell - Google Patents

Abstract

The invention discloses a metal shell distance-changing device, comprising: the conveying unit comprises a second conveying assembly and a first conveying assembly, the second conveying assembly comprises a plurality of second carriers, the first conveying assembly comprises a plurality of first carriers, and the second carriers and the first carriers can be used for detachably fixing the metal shell; and a transfer unit capable of detachably fixing the metal housing. The distance-changing equipment for the metal shell, which is provided by the invention, has the advantages of simple structure and low cost, can be applied to the long-distance conveying process of the metal shell and can be used for carrying out distance-changing adjustment on the conveyed metal shell, meanwhile, the distance-changing equipment for the metal shell, which is provided by the invention, has small occupied area and rapid response, can effectively avoid the damage of the appearance of the metal shell in the process of moving the metal shell, is convenient to maintain, and can be matched with a production line to quickly transfer the metal shell between two different production lines, so that the production and the transportation of the metal shell can be smoothly carried out.

Description

Pitch-changing equipment for metal shell

Technical Field

The invention relates to a moving mechanism, in particular to a metal shell distance-changing device and a production line with the same, and belongs to the technical field of moving devices.

Background

Taking a battery case of a new energy automobile as an example. In the production process of the automobile power battery shells, as the whole automatic production line consists of a plurality of machines, the designed functions of each machine are different, the interval between the battery shells in the circulation process of the whole production line is different, the battery shells are basically one by one in the cleaning and packing frame opening processes, the interval is small, the transportation and the carrying are convenient, if the interval is large, the packing boxes and the cleaning baskets are large, the unreasonable production speed of the battery shells is obviously unreasonable, even 600-800 battery shells can be achieved per minute, if one product is put into the packing boxes or the cleaning baskets at a time, the current equipment is difficult to achieve the speed, the production speed of the upper battery shells can be matched only by simultaneously grabbing the plurality of products, but the interval between the plurality of battery shells is large if the interval is large, the size of the grabbing mechanism is huge, the inertia is large, and the driving energy is large. There is a need for a high speed long distance pitch mechanism that allows for easy simultaneous placement of a set of battery cans into a package or basket at a small pitch after the pitch is changed to a desired small pitch.

The existing distance-changing mechanism is mainly provided with the following steps that (1) a plurality of station manipulators are used for alternately grabbing products from a conveying line with larger spacing and placing the products on the conveying line with smaller spacing, and the defects of the mode are that for the field of battery shell production with higher speed, a plurality of manipulators are needed to be added, an industrial camera is needed to perform visual guiding and positioning, the cost is necessarily increased, meanwhile, the manipulators occupy space, and the maintenance cost is higher; (2) a positive and negative tooth screw rod rotation pitch-changing mechanism; (3) The guide plate is provided with a variable-pitch guide groove, the grabbing mechanism is driven to move along the guide groove by the movement of the guide plate to realize the variable-pitch mechanism, and the guide plate is commonly provided with an air cylinder and a motor; (2) And (3) the defects of the two mechanisms are that only a small range of variable pitch can be realized, and for a long-distance high-speed battery shell production line, the response speed of an air cylinder or a servo motor is too slow to meet the speed beat of the battery shell production line because the two mechanisms need to reciprocate; (4) The principle of the mechanism is that the product realizes the displacement along the displacement screw guide groove, but the mechanism is simpler and more efficient, but the appearance requirement of the power battery case is very high, and the surface cannot be scratched, so the sliding mode of the product along the screw groove cannot be adopted.

Therefore, a distance changing mechanism with high speed, large distance changing range and no product scratch is needed to be designed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a metal shell distance-changing device so as to overcome the defects of the prior art.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention comprises the following steps:

one aspect of the present invention provides a distance-varying apparatus of a metal housing, comprising: the conveying unit comprises a second conveying assembly and a first conveying assembly, wherein the second conveying assembly and the first conveying assembly are arranged at intervals along a second direction and can continuously run, the second conveying assembly comprises a plurality of second carriers, the first conveying assembly comprises a plurality of first carriers, and the second carriers and the first carriers can be used for detachably fixing the metal shell;

the transfer unit can detachably fix the metal shell and can drive the metal shell to move along a first direction and a second direction, and the second conveying assembly and the first conveying assembly are positioned on the movement track of the metal shell;

and in the process of moving the transfer unit along the first direction, the transfer unit can be fixed with the metal shell on the first carrier or separated from the metal shell on the second carrier; when the transfer unit moves along the second direction, the transfer unit can transfer the metal shell to the second carrier.

In some embodiments, the second conveying assembly further comprises a synchronous belt and a synchronous pulley matched with the synchronous belt, the synchronous belt can continuously run under the driving of the synchronous pulley, and the second carrier is fixedly arranged on the synchronous belt;

the first conveying assembly further comprises a chain, a large chain wheel and a small chain wheel, the large chain wheel and the small chain wheel are matched with the chain, the chain is in transmission connection with the large chain wheel and the small chain wheel, the large chain wheel and the small chain wheel are respectively arranged on two sides of the chain, the chain can continuously run under the driving of the large chain wheel, and the first carrier is fixedly arranged on the chain;

a first spacing between adjacent first carriers is different from a second spacing between adjacent second carriers.

In some embodiments, the timing pulley and the large sprocket are parallel and disposed on the same main shaft, the first direction is parallel to an axial direction of the timing pulley and/or large sprocket, and the second direction is parallel to a radial direction of the timing pulley and/or large sprocket.

In some embodiments, the timing pulley and the large sprocket are disposed coaxially with the main shaft, and the diameter of the timing pulley is smaller than the diameter of the large sprocket.

In some embodiments, a first spacing between adjacent first carriers is greater than a second spacing between adjacent second carriers.

In some embodiments, the second carrier fixes the metal housing by magnetic adsorption or negative pressure adsorption; and/or the second carrier comprises a magnetic adsorption mechanism or a negative pressure adsorption mechanism; and/or the metal housing comprises a ferromagnetic structure and/or a magnet structure capable of being magnetically attracted;

the first carrier fixes the metal shell in a magnetic adsorption or negative pressure adsorption mode; and/or the first carrier comprises a magnetic adsorption mechanism or a negative pressure adsorption mechanism; and/or the metal housing comprises a ferromagnetic structure and/or a magnet structure capable of being magnetically attracted.

In some embodiments, the transfer unit includes a metal casing fixing mechanism capable of detachably fixing the metal casing, a first driving mechanism and a second driving mechanism in transmission connection with the metal casing fixing mechanism, the first driving mechanism capable of driving the metal casing fixing mechanism to move in the first direction, and the second driving mechanism capable of driving the metal casing fixing mechanism to move in the second direction.

In some embodiments, the transfer unit further comprises a rotating wheel, the metal shell fixing mechanism is movably matched with the rotating wheel, and the rotating wheel, the synchronous pulley and the large chain wheel are arranged on the main shaft.

In some embodiments, the runner is provided with a guide rail arranged along a second direction, and the first driving mechanism is movably arranged on the guide rail and can be driven by the second driving mechanism to move along the guide rail.

In some embodiments, the second drive mechanism comprises a cam drive mechanism comprising a cam and a cam follower cooperating with the cam, the cam follower further being fixedly connected to the metal housing securing mechanism or the second drive mechanism, one of the cam and the wheel being movable about its own axis to cause relative movement between the cam follower and the cam to thereby enable the metal housing securing mechanism to move along the guide rail.

Compared with the prior art, the invention has the advantages that:

1) The distance-changing equipment for the metal shell is simple in structure and low in cost, can be applied to long-distance transmission of the metal shell, and can be used for adjusting the distance change of the transmitted metal shell;

2) The distance-changing equipment for the metal shell provided by the invention has the advantages of small occupied area, rapid response, convenience in maintenance and capability of effectively avoiding the damage of the appearance of the metal shell in the process of moving the metal shell, and the metal shell can be quickly transferred between two different production lines by matching the distance-changing equipment with the production line, so that the production and the transportation of the metal shell can be smoothly carried out.

Drawings

FIG. 1 is a schematic view of a metal casing pitch device according to an exemplary embodiment of the present invention;

FIG. 2 is an enlarged schematic view at B in FIG. 1;

FIG. 3 is a side view of a metal shell pitch device provided in an exemplary embodiment of the present invention;

FIG. 4 is an enlarged schematic view at D in FIG. 3;

FIG. 5 is a view in the direction C of FIG. 3;

FIG. 6 is a schematic diagram of a transfer unit according to an exemplary embodiment of the present invention;

FIG. 7 is a view in the direction A of FIG. 6;

reference numerals illustrate:

1. a transfer unit;

11. a second transfer assembly; 111. a second carrier; 112. a synchronous belt; 113. a synchronous pulley;

12. a first transfer assembly; 121. a first carrier; 122. a chain; 123. a large sprocket; 124. a small sprocket (124);

2. a transfer unit;

21. a metal shell fixing mechanism;

22. a first driving mechanism;

23. a second driving mechanism; 231. a cam; 232. a cam follower; 233. a first synchronizing wheel; 234. a synchronous belt; 235. a second synchronizing wheel; 236. a chain; 237. a first gear; 238. a second gear;

24. a rotating wheel;

25. a guide rail;

26. a mounting frame;

3. a main shaft.

Detailed Description

In view of the shortcomings in the prior art, the inventor of the present invention has long studied and practiced in a large number of ways to propose the technical scheme of the present invention. The technical scheme, the implementation process, the principle and the like are further explained as follows.

The technical solution, implementation process and principle thereof will be further explained below with reference to fig. 1-7 of the accompanying drawings and specific embodiments, and unless otherwise specified, the cylinders, mechanical valves, etc. used in the embodiments of the present invention are all components known to those skilled in the art, and are all commercially available, and specific structures and models thereof are not limited herein.

Example 1

Referring to fig. 1-5, a distance-changing device with a metal casing provided in this embodiment, where the metal casing may be a battery casing, includes:

the conveying unit 1 comprises a second conveying assembly 11 and a first conveying assembly 12 which are arranged at intervals along a second direction and can continuously run, the second conveying assembly 11 comprises a plurality of second carriers 111, the first conveying assembly 12 comprises a plurality of first carriers 121, and the second carriers 111 and the first carriers 121 can detachably fix a metal shell;

the transfer unit 2 can detachably fix the metal shell and can drive the metal shell to move along a first direction and a second direction, and the second conveying assembly 11 and the first conveying assembly 12 are positioned on the movement track of the metal shell;

and during the movement of the transfer unit 2 along the first direction, the transfer unit 2 can be fixed with the metal casing on the first carrier 121 or separated from the metal casing on the second carrier 111; the transfer unit 2 is capable of transferring the metal shell to the second carrier 111 during movement of the transfer unit 2 in the second direction.

It will be appreciated that the transfer unit 2 is capable of transferring the metal shell between the second station and the first station, and when the second carrier 111 and the first carrier 121 carry the metal shell, the transfer unit 2 is capable of moving along the first direction and being fixed with the metal shell on the first carrier 121 at the first station, so as to restrict or carry the metal shell to move along the second direction, and after moving the metal shell onto the second carrier 111 at the second station, the transfer unit 2 moves along the first direction and is separated from the metal shell, so that the transfer unit 2 returns from the second station to the first station, and the above operation steps are repeated again. During the operation of the transfer unit 2, the first conveying assembly 12 in the conveying unit 1 can continuously operate to continuously carry the metal shell to a designated position, and the second conveying assembly 11 can continuously convey the metal shell placed on the second carrier 111. The metal shell carried on the first transfer assembly 12 is transferred to the second transfer assembly 11 in a reciprocating manner, whereby the metal shell is transferred. When the device is applied to production, the battery shell on the first carrier 121 can be transferred to the second carrier 111, and the battery shell transferring work between two continuously running conveying assemblies can be realized.

More specifically, the second conveying assembly 11 further includes a synchronous belt 112 and a synchronous pulley 113 matched with the synchronous belt 112, the synchronous belt 112 can continuously run under the driving of the synchronous pulley 113, and the second carrier 111 is fixedly arranged on the synchronous belt 112;

the first conveying assembly 12 further comprises a chain 122, a large chain wheel 123 and a small chain wheel 124 which are matched with the chain 122, the chain 122 is in transmission connection with the large chain wheel 123 and the small chain wheel 124134, the large chain wheel 123 and the small chain wheel 124 are respectively arranged at two sides of the chain 122, the chain 122 can continuously run under the driving of the large chain wheel 123, and the first carrier 121 is fixedly arranged on the chain 122;

a first pitch between adjacent first carriers 121 is different from a second pitch between adjacent second carriers 111. It can be understood that the timing belt 112 and the chain 122 can be driven by the large sprocket 123 to continuously drive, so that the second carrier 111 and the first carrier 121 disposed thereon can be continuously transported to the second station or the first station, the transferring unit 2 can transfer the metal shell from the first carrier 121 at the first station to the second carrier 111 at the second station, and the arrangement pitch of the metal shell on the first conveying component 12 is different from the arrangement pitch on the second conveying component 11, so that the metal shell can be transferred from the first carrier 121 to the second carrier 111, and the adjustment and conversion of the arrangement pitch of the metal shell can be realized.

The first conveying assembly 12 further includes a small sprocket 124, the small sprocket 124 can be in driving connection with the chain 122, and the chain 122 can change a driving track under the driving of the small sprocket 124, so that the metal shell is driven to a designated position.

Specifically, the number of the small chain wheels 124 is at least two, two small chain wheels 124 can be in transmission connection with the chain 122, and the two small chain wheels 124 can limit the chain 122 between the two to always fit with the large chain wheels 123 for transmission. So that the metal shell is driven to a designated position so that the transfer unit 2 is fixed with the metal shell of the first carrier 121 on the chain 122 here, so as to facilitate the transfer of the metal shell.

Further, the timing pulley 113 and the large sprocket 123 are parallel and disposed on the same main shaft 3, and the first direction is parallel to the axial direction of the timing pulley 113 and/or the large sprocket 123, and the second direction is parallel to the radial direction of the timing pulley 113 and/or the large sprocket 123.

Further, the timing pulley 113 and the large sprocket 123 are disposed coaxially with the main shaft 3, and the diameter of the timing pulley 113 is smaller than the diameter of the large sprocket 123. Referring to fig. 5, the synchronous pulley 113 and the large sprocket 123 rotate coaxially, so that the angular velocity of the two are the same, and the linear velocity formula is: linear velocity=angular velocity×radius, it is known that the linear velocity of the synchronous pulley 113 is smaller than the linear velocity of the large sprocket 123, so that the transfer unit 2 can be configured to perform a linear-like motion between the second station and the first station, so that the motion track of the transfer unit 2 is more concise and correspondingly quicker. The synchronous pulley 113 and the large sprocket 123 may be fixed in cooperation with the main shaft 3 such that the synchronous pulley 113 and the large sprocket 123 can be rotated synchronously when the main shaft 3 is rotated. In this embodiment, the distance-changing equipment of the metal shell can realize the distance-changing arrangement work of the metal shell, and when the battery is quickly conveyed and arranged in the working area, the equipment occupies small space, and can realize quick response between the conveying units 1 by continuously rotating the main shaft 3 along a designated direction, and when the equipment is applied to production, the working efficiency of the process can be improved.

More specifically, the first spacing between adjacent first carriers 121 is greater than the second spacing between adjacent second carriers 111. The second carriers 111 or the first carriers 121 can carry metal shells, and if two adjacent second carriers 111 and/or the first carriers 121 carry metal shells, a first distance between two adjacent metal shells on the chain 122 is greater than a second distance between two adjacent metal shells on the synchronous belt 112, so that the metal shells can be adjusted from large-distance arrangement to small-distance arrangement.

Example 2

Referring to fig. 2-7, a metal casing pitch device is provided in this embodiment, which is basically similar to embodiment 1 in structure, except that the transfer unit 2 includes a metal casing fixing mechanism 21, a first driving mechanism 22 and a second driving mechanism 23, the metal casing fixing mechanism 21 can detachably fix the metal casing, the first driving mechanism 22 and the second driving mechanism 23 are in transmission connection with the metal casing fixing mechanism 21, the first driving mechanism 22 can drive the metal casing fixing mechanism 21 to move along the first direction, and the second driving mechanism 23 can drive the metal casing fixing mechanism 21 to move along the second direction. It will be appreciated that when the metal shell fixing mechanism 21 advances to the first station, the metal shell fixing mechanism 21 can fix a metal shell, and then be driven by the first driving mechanism 22 and/or the second driving mechanism to move along the first direction and/or move along the second direction so as to separate the metal shell from the first carrier 121, and then the metal shell fixing mechanism 21 is driven by the second driving mechanism 23 to move along the second direction, that is, move from the first station to the second station, so as to move the metal shell to the second station.

More specifically, the transfer unit 2 further includes a rotating wheel 24, and the metal casing fixing mechanism 21 is movably matched with the rotating wheel 24, where the rotating wheel 24, the synchronous pulley 113 and the large sprocket 123 are all disposed on the main shaft 3. The rotating wheel 24, the synchronous pulley 113 and the large chain wheel 123 are coaxially arranged with the main shaft 3.

Further, the runner 24 is provided with a guide rail 25 arranged along the second direction, and the first driving mechanism 22 is movably arranged on the guide rail 25 and can move along the guide rail 25 under the driving of the second driving mechanism 23. The guide rail 25 is used for limiting the transfer units 2 to a linear motion track and preventing the transfer units 2 from separating from the track of the reciprocating motion of the transfer units during the working process, and the guide rail 25 can be arranged according to the actual use condition, as shown in fig. 7, and the guide rail 25 is arranged at equal intervals, so that the transfer units 2 are prevented from collision during the working process.

Example 3

Referring to fig. 4-7, a metal casing pitch device is provided in this embodiment, which is basically similar to embodiment 2 in structure, except that the second driving mechanism 23 includes a cam driving mechanism, the cam driving mechanism includes a cam 231 and a cam follower 232 cooperating with the cam 231, the cam follower 232 is fixedly connected with the metal casing fixing mechanism 21 or the second driving mechanism 23, and one of the cam 231 and the rotating wheel 24 can move around its own axis, so that a relative movement is generated between the cam follower 232 and the cam 231, thereby enabling the metal casing fixing mechanism 21 to move along the guide rail 25. The cam 231 may be understood as having a non-circular track groove with which the cam follower 232 slides in cooperation.

More specifically, the cam driving mechanism further comprises a first transmission assembly and a second transmission assembly, the first transmission assembly comprises a first synchronous wheel 233 and a synchronous belt 234 in transmission connection with the first synchronous wheel 233, and the cam follower 232 can be fixedly arranged on the synchronous belt 234; the second transmission assembly comprises a second synchronizing wheel 235 and a chain 236 in transmission connection with the second synchronizing wheel 235, and the metal shell fixing mechanism 21 can be fixedly arranged on the chain 236; the first synchronizing wheel 233 is in driving connection with the second synchronizing wheel 235.

It will be appreciated that when the cam follower 232 slides along the non-circular track groove, the cam follower 232 actually appears to move in the circumferential direction of the wheel 24 and slide with the shape of the non-circular track groove either toward the spindle 3 or away from the spindle 3. When the cam follower 232 moves towards the direction approaching the main shaft 3, the synchronous belt 234 will drive clockwise as shown in fig. 4, and the first synchronous wheel 233 is in driving connection with the second synchronous wheel 235, so that the chain 236 is driven to drive anticlockwise, and the transfer unit 2 fixedly arranged on the chain 236 can move away from the main shaft 3, namely, from the first station to the first station; when the cam follower 232 moves away from the spindle 3, the timing belt 234 is driven in a counterclockwise direction as shown in fig. 4, the chain 236 is driven clockwise, and the transfer unit 2 moves toward the spindle 3, i.e., from the second station to the first station. In this embodiment, the space-saving device for the metal shell is small in occupied area, the rotating wheel 24 is driven by a driving unit to rotate in a designated direction, the cam follower 232 slides along the non-circular track groove along with the rotation of the rotating wheel 24, and the transferring unit 2 reciprocates between the second station and the first station to continuously transfer the metal shell from large-space arrangement to small-space arrangement, and accordingly, the space-saving device is rapid.

Further, the first synchronizing wheel 233 is coaxially provided with a first gear 237, the second synchronizing wheel 235 is coaxially provided with a second gear 238, and the first gear 237 is in meshed transmission connection with the second gear 238. The radius of rotation of the first gear 237 is greater than the radius of rotation of the second gear 238. It will be appreciated that the first gear 237 is meshed with the second gear 238 to rotate the second gear 238, and when the two gears are meshed to rotate, the angular velocity of the first gear 237 is smaller than the angular velocity of the second gear 238. When the first gear 237 rotates, the movement speed of the second follower is greater than the movement speed of the transfer unit 2, thereby achieving a rapid movement and rapid correspondence of the transfer unit 2.

Still further, the metal casing pitch device further comprises a mounting frame 26, wherein the mounting frame 26 is disposed on the rotating wheel 24, and the mounting frame 26 is at least used for movably disposing the first synchronizing wheel 233 and the second synchronizing wheel 235. More specifically, the transmission unit further includes an auxiliary wheel set, which may be disposed on the rotating wheel 24 and/or the mounting frame 26, referring to fig. 4, for changing the laying direction of the first conveyor belt and/or the second conveyor belt, so as to reduce friction between the conveyor belt and other components, and at the same time, reasonably arrange the occupied space of the conveyor belt, so as to reduce the occupied space of the distance-changing device of the metal casing.

Still further, as shown in fig. 5, a guiding wheel may be disposed in the second conveying component 11 and/or the first conveying component 12, so that a direction in which the first conveying component 12 conveys the metal shell is consistent with a direction in which the second conveying component 11 outputs the metal shell, and thus the distance-changing device of the metal shell may be configured such that one side inputs the metal shell arranged in a long-distance manner, and the other side outputs the metal shell arranged in a long-distance manner, thereby avoiding confusion of production line conveying.

Further, the non-circular track groove is a cam-shaped annular track groove. The cam follower 232 is slidably engaged with the annular track groove. It will be appreciated that the cam-like annular track groove has a circular-like track groove and a curved track groove protruding from the circular-like track groove. When the cam follower 232 is slidably engaged in the curved track groove, the transfer unit 2 can be moved from the first station to the second station and back to the first station; the transfer unit 2 can be held in either the second or first position when the cam follower 232 is in sliding engagement with the circular-like track groove. By setting the cam-shaped track grooves of corresponding specifications, the adjustment of the movement distance of the transfer unit 2 and the time of staying/holding at the second station or the first station is realized.

Preferably, the axis of the cam is parallel to the axis of the wheel 24.

More preferably, the cam 231, the rotating wheel 24, the synchronous pulley 113 and the large sprocket 123 are all arranged with the main shaft 3, the cam 231 can be in rotating fit with the main shaft 3, and the rotating wheel 24, the synchronous pulley 113 and the large sprocket 123 are fixed and can synchronously rotate with the main shaft 3. When a third driving mechanism drives the spindle 3 to rotate, the cam follower 232 can slide along the cam-shaped annular track groove of the cam 231, so that the metal shell fixing mechanism 21 is driven to move along the second direction, the conveying unit 1 conveys the metal shell, under the driving of the first driving mechanism 22, the metal shell fixing mechanism 21 can also move along the first direction to be fixed or separated from the metal shell, the variable-pitch processing of the metal shell arrangement is realized under the mutual matching of the components, the transmission relation between the components is simplified, the change of the metal shell interval arrangement distance is realized through fewer driving units, the occupied area of the equipment is reduced, and the use cost is saved.

Example 4

Referring to fig. 2, a metal casing pitch device according to the present embodiment is basically similar to embodiment 3 in structure, and the difference is that a plurality of metal casing fixing mechanisms 21 and a plurality of guide rails 25 are disposed on the rotating wheel 24, each metal casing fixing mechanism 21 is disposed at least corresponding to one guide rail 25, and the guide rails 25 are sequentially disposed along the circumferential direction of the rotating wheel 24. A plurality of the transfer units 2 referring to the above operation, when the wheel 24 rotates, the transfer units 2 can be moved between the second station and the first station, and as shown in fig. 2, the plurality of transfer units 2 provided on the wheel 24 can be in different states. It will be appreciated that when one metal shell fixing mechanism 21 moves from one metal shell to the second carrier 111 on the first carrier 121, the other metal shell on the rotating wheel 24 moves to the next first carrier 121 and prepares the metal shells fixed thereon, and the plurality of metal shell fixing mechanisms 21 on the rotating wheel 24 are sequentially arranged so that the metal shells can be continuously placed at the second carrier 111 on the timing belt 112. Therefore, the number of the metal shell fixing mechanisms 21 and the spacing between the metal shell fixing mechanisms 21 can be increased to increase the conveying speed of the equipment, and for example, the metal shell fixing mechanisms 21 can be arranged at equal spacing. The transfer rate of the transfer unit 2 is improved, so that the metal shell production speed is more closely matched with that of the metal shell, and the metal shell can be quickly adjusted from long-distance arrangement to short-distance arrangement.

The pitch-changing equipment for the metal shell provided by the invention can grab and place the metal shell on the chain 122 with smaller pitch from the synchronous belt 112 with larger pitch. Compared with the conventional multi-station manipulator, the manipulator has high operation speed and high requirements on the placement moving area, and particularly, the manipulator not only needs a large number of manipulators, but also greatly increases the maintenance and space placement cost in the production field of metal shells. Compared with the rotary variable-pitch mechanism of the positive and negative tooth screw and the variable-pitch realized by the cooperation of the guide groove and the guide plate, the variable-pitch mechanism and the guide groove cannot realize the long-distance transmission requirement of the metal shell, and the variable-pitch mechanism and the guide groove are realized by the reciprocating rotation of the air cylinder or the motor, so that the working efficiency of the variable-pitch mechanism is too low for the production speed of the metal shell.

The distance-changing equipment for the metal shell not only can realize the conversion from long distance arrangement to short distance arrangement of the metal shell, but also can continuously transmit products after the short distance arrangement to the next procedure, and can be suitable for high-speed transmission work of the metal shell when the distance-changing equipment is applied to the production of the metal shell.

Further, when the present invention is applied to practical production, the second carrier 111 fixes the metal housing by magnetic adsorption or negative pressure adsorption. That is, the second carrier 111 can fix the metal housing by means of negative pressure or magnetic attraction and convey the metal housing to a designated position.

Specifically, the second carrier 111 includes a magnetic adsorption mechanism or a negative pressure adsorption mechanism. The second carrier 111 may be configured to fix the metal housing by a magnetic adsorption structure or a negative pressure adsorption structure.

In particular, the metal housing comprises a ferromagnetic structure and/or a magnet structure that is magnetically attractable. That is, the metal housing is of a ferromagnetic structure, for example, the metal housing may be made of a ferrous material, the second carrier 111 has a magnetic attraction mechanism, and the second carrier 111 can constrain the metal housing by magnetic attraction. Compared with the clamping constraint metal shell, the metal shell can be prevented from being damaged in appearance.

Specifically, the first carrier 121 fixes the metal housing by magnetic adsorption or negative pressure adsorption. That is, the first carrier 121 can fix the metal housing by means of negative pressure or magnetic attraction and convey the metal housing to a designated position.

Specifically, the first carrier 121 includes a magnetic adsorption mechanism or a negative pressure adsorption mechanism. The first carrier 121 may be configured to fix the metal housing by a magnetic adsorption structure or a negative pressure adsorption structure.

In particular, the metal housing comprises a ferromagnetic structure and/or a magnet structure that is magnetically attractable. That is, the metal housing is a ferromagnetic structure, for example, the metal housing may be made of a ferrous material, the first carrier 121 has a magnetic attraction mechanism, and the first carrier 121 can constrain the metal housing by magnetic attraction. Compared with the clamping constraint metal shell, the metal shell can be prevented from being damaged in appearance. Therefore, the metal shell can be stably and firmly restrained on the carrier, the damage to the appearance of the metal shell can be reduced to the greatest extent by using a magnetic adsorption mode on the second carrier and the first carrier, and the metal shell can be flexibly and rapidly carried and transferred.

Example 5

Referring to fig. 1-3, a metal casing pitch device is provided in this embodiment, which is basically similar to embodiment 4 in structure, except that the metal casing fixing mechanism 21 is a cylinder, and the metal casing fixing mechanism 21 can constrain the metal casing by plugging with the metal casing. Referring to fig. 1-3, it can be appreciated that when the cylinder moves to the first station, the piston rod of the cylinder can be driven by a first driving unit to extend, and the extending piston rod is inserted into the metal housing. The cylinder moves from the first station to the second station, when the cylinder moves to the first station, the first carrier 121 restrains the metal shell, the piston rod of the cylinder can be driven by the first driving unit to retract, the metal shell is left on the first carrier 121, and the first conveying component 12 conveys the first carrier 121 and the metal shell thereon; the cylinder moves from the second station to the first station and repeats the above operation. Therefore, the metal shells on the second conveying assembly 11 are moved to the first conveying assembly one by one, compared with the common mechanical grabbing mode, the metal shells are simple and efficient, the metal shells are moved between the two conveying assemblies, the occupied area is small, the metal shells are correspondingly rapid, and the metal shells can be applied to long-distance conveying environments. In addition, because the general manufacturer has higher requirements on the appearance of the metal shell, the cylinder can be inserted into the inner wall of the metal shell so as to carry or move the metal shell, thereby avoiding the possibility of scratch on the appearance of the metal shell and realizing the movement of the metal shell efficiently and rapidly.

Furthermore, the first driving unit is a mechanical valve, the mechanical valve can be in transmission connection with the main shaft 3, when the air cylinder moves to the first station, the main shaft 3 rotates to drive the valve rod of the mechanical valve to extend out, so that compressed air enters the air inlet at the tail part of the air cylinder, the piston rod of the air cylinder extends out, the piston rod is fixedly connected with the metal shell in an inserting mode, and the metal shell is taken down from the first carrier. When the cylinder moves to the second station, the valve rod of the mechanical valve is switched to the other direction, and compressed air enters the air inlet at the front end of the cylinder, so that the piston rod of the cylinder is retracted, the piston rod is separated from the metal shell, the metal shell is reserved on the second carrier, and the metal shell is converted from long-distance arrangement to short-distance arrangement.

Example 6

Referring to fig. 1, a conveying line with a distance-changing device is provided in this embodiment, which is substantially similar to embodiment 5, and the difference is that the conveying line includes the distance-changing device for metal shells described in embodiment 1 or embodiment 4, a first line and a second line, and a second conveying assembly 11 at least for conveying the metal shells of the first line to the first station, and the first conveying assembly 12 at least for outputting the metal shells of the second station to the second line. The first production line can receive and transfer the metal shell onto the second transfer assembly 11, the second transfer assembly 11 removes and transfers the metal shell on the first production line to the position shown in fig. 5, so that the first carrier carries the metal shell on the third and fourth press to transfer the metal shell onto the first transfer assembly 12 through the transfer unit 2, and the first transfer assembly 12 outputs the metal shell to the second production line and transfers the metal shell to the next process through the second production line. The metal shell distance arrangement conversion between two production lines can be realized, in the automobile power metal shell production process, because the whole automatic production line consists of a plurality of machines, the different functions of each machine design can generate different distances between the metal shells in the circulation process of the whole production line, the production speed of the metal shells is very high and can reach 600-800 per minute, and a conveying production line with a distance changing device is arranged between different production lines so as to form the conveying production line with the distance changing device, so that long-distance transportation of the metal shells can be realized, the distance changing adjustment can be correspondingly and rapidly carried out on the metal shells.

The distance-changing device for metal cases provided in embodiments 1 to 5 and the conveying production line with the distance-changing device provided in embodiment 6 of the present invention can be used for conveying and transferring metal cases, and can also be applied to conveying and transferring other workpieces or materials, such as conveying and transferring cylindrical battery cases, pop-top cans, cube-shaped battery cases and other workpieces or materials. And in particular, the first carrier and the second carrier can be provided with a placing groove corresponding to the outline of the workpiece, and the shape and the size of the placing groove can be adjusted according to actual needs so as to enable the distance changing transfer work of the distance changing equipment of the metal shell to achieve the optimal work effect.

It should be understood that the above embodiments are merely for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and implement the same according to the present invention without limiting the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims (10)

1. A metal shell pitch-changing apparatus, comprising:

a conveying unit (1) comprising a second conveying assembly (11) and a first conveying assembly (12) which are arranged at intervals along a second direction and can continuously run, wherein the second conveying assembly (11) comprises a plurality of second carriers (111), the first conveying assembly (12) comprises a plurality of first carriers (121), and the second carriers (111) and the first carriers (121) can detachably fix a metal shell;

the transfer unit (2) can detachably fix the metal shell and can drive the metal shell to move along a first direction and a second direction, and the second conveying assembly (11) and the first conveying assembly (12) are positioned on the movement track of the metal shell;

and during the movement of the transfer unit (2) along the first direction, the transfer unit (2) can be fixed with the metal shell on the first carrier (121) or separated from the metal shell on the second carrier (111); the transfer unit (2) is capable of transferring the metal shell to a second carrier (111) during movement of the transfer unit (2) in a second direction.

2. A metal shell pitch-changing apparatus as defined in claim 1, wherein:

the second conveying assembly (11) further comprises a synchronous belt (112) and a synchronous pulley (113) matched with the synchronous belt (112), the synchronous belt (112) can continuously run under the driving of the synchronous pulley (113), and the second carrier (111) is fixedly arranged on the synchronous belt (112);

the first conveying assembly (12) further comprises a chain (122), a large chain wheel (123) and a small chain wheel (124) which are matched with the chain (122), the chain (122) is in transmission connection with the large chain wheel (123) and the small chain wheel (124), the large chain wheel (123) and the small chain wheel (124) are respectively arranged on two sides of the chain (122), the chain (122) can continuously run under the driving of the large chain wheel (123), and the first carrier (121) is fixedly arranged on the chain (122):

a first pitch between adjacent first carriers (121) is different from a second pitch between adjacent second carriers (111).

3. A metal shell pitch-changing apparatus as defined in claim 2, wherein:

the synchronous pulley (113) and the large sprocket (123) are parallel and arranged on the same main shaft (3), the first direction is parallel to the axial direction of the synchronous pulley (113) and/or the large sprocket (123), and the second direction is parallel to the radial direction of the synchronous pulley (113) and/or the large sprocket (123).

4. A metal shell pitch-shifting apparatus as defined in claim 3, wherein:

the synchronous pulley (113) and the large sprocket (123) are coaxially arranged with the main shaft (3), and the diameter of the synchronous pulley (113) is smaller than that of the large sprocket (123).

5. A metal shell pitch-changing apparatus as defined in claim 2, wherein:

a first spacing between adjacent first carriers (121) is greater than a second spacing between adjacent second carriers (111).

6. A metal shell pitch-shifting apparatus as defined in claim 4, wherein:

the second carrier (111) fixes the metal shell through a magnetic adsorption or negative pressure adsorption mode; and/or the second carrier (111) comprises a magnetic adsorption mechanism or a negative pressure adsorption mechanism; and/or the metal housing comprises a ferromagnetic structure and/or a magnet structure capable of being magnetically attracted;

the first carrier (121) fixes the metal shell through a magnetic adsorption or negative pressure adsorption mode; and/or the first carrier (121) comprises a magnetic adsorption mechanism or a negative pressure adsorption mechanism; and/or the metal housing comprises a ferromagnetic structure and/or a magnet structure capable of being magnetically attracted.

7. A metal shell pitch-shifting apparatus as defined in claim 6, wherein:

the transfer unit (2) comprises a metal shell fixing mechanism (21), a first driving mechanism (22) and a second driving mechanism (23), wherein the metal shell fixing mechanism (21) can detachably fix a metal shell, the first driving mechanism (22) and the second driving mechanism (23) are in transmission connection with the metal shell fixing mechanism (21), the first driving mechanism (22) can drive the metal shell fixing mechanism (21) to move along a first direction, and the second driving mechanism (23) can drive the metal shell fixing mechanism (21) to move along a second direction.

8. A metal shell pitch-shifting apparatus as defined in claim 7, wherein:

the transfer unit (2) further comprises a rotating wheel (24), the metal shell fixing mechanism (21) is movably matched with the rotating wheel (24), and the rotating wheel (24), the synchronous pulley (113) and the large chain wheel (123) are arranged on the main shaft (3).

9. A metal shell pitch-shifting apparatus as defined in claim 8, wherein:

the rotating wheel (24) is provided with a guide rail (25) arranged along a second direction, and the first driving mechanism (22) is movably arranged on the guide rail (25) and can move along the guide rail (25) under the driving of the second driving mechanism (23).

10. A metal shell pitch-shifting apparatus as defined in claim 9, wherein:

the second driving mechanism (23) comprises a cam driving mechanism, the cam driving mechanism comprises a cam (231) and a cam follower (232) matched with the cam (231), the cam follower (232) is fixedly connected with the metal shell fixing mechanism (21) or the second driving mechanism (23), one of the cam (231) and the rotating wheel (24) can move around the axis of the cam follower (232) and the cam (231), and relative movement is generated between the cam follower and the cam follower (232), so that the metal shell fixing mechanism (21) can move along the guide rail (25).