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

Abstract

The invention discloses a pitch-changing device with a metal shell, which includes: a transmission unit, including a second transmission component and a first transmission component. The second transmission component includes a plurality of second carriers, and the first transmission component includes a plurality of second carriers. A carrier, the second carrier and the first carrier can detachably fix the metal shell; the transfer unit can detachably fix the metal shell. The invention provides a metal shell pitch-changing device with a simple structure and low cost. It can be used in the process of long-distance transmission of metal shells, and can adjust the distance of the transported metal shells. At the same time, the invention provides A pitch-changing equipment with a metal casing, which occupies a small area, responds quickly, and can effectively avoid damage to the appearance of the metal casing during the movement of the metal casing. It is also easy to maintain. When it is matched with the production line, it can be used on both sides. Rapidly transfer metal casings between different production lines to ensure smooth production of metal casings.

Description

A pitch-changing device with a metal shell

Technical field

The invention relates to a moving mechanism, in particular to a metal shell pitch changing equipment and a production line with product pitch changing equipment, and belongs to the technical field of moving devices.

Background technique

Take the battery case of a new energy vehicle as an example. In the production process of automobile power battery cases, since the entire automated production line is composed of many machines, each machine has a different designed function, which will cause the battery cases to have different spacing during the circulation process of the entire production line. During cleaning and packaging, During the process, the battery cases are basically placed next to each other with a small distance, which facilitates transportation and handling. If the distance is large, the packaging box and cleaning basket will be very large, which is obviously unreasonable, and the production of battery cases The speed is very high, even reaching 600-800 per minute. If one product is put into the packaging box or cleaning basket at a time, it is difficult for the current equipment to reach this speed, so only by grabbing multiple products at the same time can it To match the production speed of battery cases, if the distance between multiple battery cases is large, the size of the grabbing mechanism will be very large, the flexibility will be insufficient, the inertia will be large, and the driving energy will be large. Therefore, there is a need for a mechanism that can achieve high-speed and long-distance distance change. After the distance is changed to the expected small distance, it will be easy to place a group of battery shells into the packaging box or basket at a small distance at the same time.

There are roughly the following types of existing distance-changing mechanisms. (1) Multiple station manipulators alternately grab products from conveyor lines with larger intervals and place them on conveyor lines with smaller intervals. The disadvantages of this method are: For the high-speed battery case production field, a lot of manipulators need to be added, and industrial cameras are needed for visual guidance and positioning, which will inevitably increase costs. At the same time, the manipulators also take up space and the maintenance cost is also high; (2) Positive and negative thread screws Rotary pitch-changing mechanism; (3) The guide plate is processed with a variable-pitch guide groove, and the movement of the guide plate drives the grabbing mechanism to move along the guide groove to realize the pitch-changing mechanism. Common power sources for the guide plate include cylinders and motors; ( The shortcomings of both mechanisms 2) and (3) are that they can only achieve a small range of pitch change. For long-distance and high-speed battery case production lines, since both mechanisms require reciprocating motion, the response speed of the cylinder or servo motor is Too slow to meet the speed of the battery case production line; (4) Variable pitch screw pitch mechanism. The principle of this mechanism is to make the product change pitch along the pitch-variable screw guide groove. This mechanism is relatively simple and efficient. However, the appearance of the power battery case is very demanding, and there must be no scratches on the surface. Therefore, the method of sliding this product along the screw groove cannot be used.

Therefore, it is necessary to design a pitch-changing mechanism with high speed, large pitch range, and without scratching the product.

Contents of the invention

In view of the deficiencies of the prior art, the purpose of the present invention is to provide a pitch-changing device with a metal shell to overcome the deficiencies of the prior art.

In order to achieve the foregoing invention objectives, the technical solutions adopted by the present invention include:

One aspect of the present invention provides a metal-cased pitch-changing device, including: a transmission unit, including a second transmission component and a first transmission component that are spaced apart along a second direction and capable of continuous operation, the second transmission component Comprising a plurality of second carriers, the first transfer assembly includes a plurality of first carriers, both the second carriers and the first carriers can detachably fix the metal shell;

a transfer unit that can detachably fix the metal shell and drive the metal shell to move in the first direction and the second direction, and the second transfer component and the first transfer component are located on the movement trajectory of the metal shell;

And during the movement of the transfer unit in the first direction, the transfer unit can be fixed to the metal shell on the first carrier, or separated from the metal shell on the second carrier; when the transfer unit During movement in the second direction, the transfer unit can transfer the metal shell to the second carrier.

In some embodiments, the second transmission component further includes a synchronous belt and a synchronous pulley matching the synchronous belt. The synchronous belt can run continuously driven by the synchronous pulley. The second carrier The tool is fixedly arranged on the synchronous belt;

The first transmission component also includes a chain, a large sprocket and a small sprocket that match the chain. The chain is drivingly connected to the large sprocket and the small sprocket. The large sprocket is connected to the small chain. Wheels are respectively arranged on both sides of the chain, the chain can run continuously driven by the large sprocket, and the first carrier is fixedly arranged on the chain;

The first spacing between adjacent first carriers is different from the second spacing between adjacent second carriers.

In some embodiments, the synchronous pulley and the large sprocket are parallel and arranged on the same main axis, the first direction is parallel to the axial direction of the synchronous pulley and/or the large sprocket, and the second direction is parallel to the axial direction of the synchronous pulley and/or the large sprocket. The direction is parallel to the radial direction of the synchronous pulley and/or the large sprocket.

In some embodiments, the synchronous pulley and the large sprocket are arranged coaxially with the main shaft, and the diameter of the synchronous 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 shell through magnetic adsorption or negative pressure adsorption; and/or the second carrier includes a magnetic adsorption mechanism or a negative pressure adsorption mechanism; and/or the metal shell The body includes a ferromagnetic structure and/or a magnet structure capable of being magnetically adsorbed;

The first carrier fixes the metal shell through magnetic adsorption or negative pressure adsorption; and/or, the first carrier includes a magnetic adsorption mechanism or a negative pressure adsorption mechanism; and/or, the metal shell includes a device capable of being magnetically adsorbed. ferromagnetic structure and/or magnet structure.

In some embodiments, the transfer unit includes a metal housing fixing mechanism, a first driving mechanism and a second driving mechanism, the metal housing fixing mechanism can detachably fix the metal housing, the first driving mechanism and The second driving mechanism is drivingly connected to the metal shell fixing mechanism. The first driving mechanism can drive the metal shell fixing mechanism to move in the first direction. The second driving mechanism can drive the metal shell. The body fixing mechanism moves along the second direction.

In some embodiments, the transfer unit further includes a runner, and the metal shell fixing mechanism movably cooperates with the runner, wherein the runner, the synchronous pulley, and the large sprocket are both set on the spindle.

In some embodiments, the runner has a guide rail disposed along the second direction, the first driving mechanism is movably disposed on the guide rail, and can be driven along the guide rail by the second driving mechanism. Activity.

In some embodiments, the second driving mechanism includes a cam driving mechanism, the cam driving mechanism includes a cam and a cam follower that cooperates with the cam, and the cam follower is also connected with the metal housing fixing mechanism or The second driving mechanism is fixedly connected, and one of the cam and the runner can move around its own axis, causing relative movement between the cam follower and the cam, so that the metal shell fixing mechanism can move along the Rail activity.

Compared with the existing technology, the advantages of the present invention include:

1) The invention provides a metal casing pitch-changing device with a simple structure and low cost. It can be used in the process of long-distance transmission of metal casings, and can adjust the distance of the transmitted metal casings;

2) The invention provides a metal casing pitch-changing device that occupies a small area, responds quickly, can effectively avoid damage to the appearance of the metal casing during the movement of the metal casing, and is easy to maintain. It can be combined with the metal casing. Production line coordination can quickly transfer metal casings between two different production lines, so that the production of metal casings can proceed smoothly.

Description of the drawings

Figure 1 is a schematic structural diagram of a metal-cased pitch-changing device provided in a typical implementation case of the present invention;

Figure 2 is an enlarged schematic diagram of B in Figure 1;

Figure 3 is a side view of a metal-cased pitch-changing device provided in a typical implementation of the present invention;

Figure 4 is an enlarged schematic diagram of D in Figure 3;

Figure 5 is a view of direction C in Figure 3;

Figure 6 is a schematic structural diagram of a transfer unit provided in a typical implementation case of the present invention;

Figure 7 is a view in direction A in Figure 6;

Explanation of reference symbols:

1. Transmission unit;

11. Second transmission component; 111. Second carrier; 112. Synchronous belt; 113. Synchronous pulley;

12. The first transmission component; 121. The first carrier; 122. Chain; 123. Large sprocket; 124. Small sprocket (124);

2. Transfer unit;

21. Metal shell fixing mechanism;

22. The first driving mechanism;

23. Second driving mechanism; 231. Cam; 232. Cam follower; 233. First synchronous wheel; 234. Timing belt; 235. Second synchronous wheel; 236. Chain; 237. First gear; 238. No. two gears;

24. Wheel;

25. Guide rail;

26. Installation rack;

3. Spindle.

Detailed ways

In view of the deficiencies in the prior art, the inventor of this case was able to propose the technical solution of the present invention after long-term research and extensive practice. The technical solution, its implementation process and principles will be further explained below.

The technical solution, its implementation process and principles will be further explained below with reference to Figures 1 to 7 of the accompanying drawings and specific implementation examples. Unless otherwise specified, the cylinders and mechanical valves used in the embodiments of the present invention etc. are all components known to those skilled in the art and can be purchased commercially, and their specific structures and models are not limited here.

Example 1

Please refer to Figures 1 to 5, which is a pitch-changing device with a metal shell provided in this embodiment. The metal shell here can be a battery shell, including:

The conveying unit 1 includes a second conveying component 11 and a first conveying component 12 that are spaced apart along the second direction and capable of continuous operation. The second conveying component 11 includes a plurality of second carriers 111. The first conveying component 12 includes a plurality of first carriers 121, both the second carrier 111 and the first carrier 121 can detachably fix the metal shell;

The transfer unit 2 can detachably fix the metal shell and drive the metal shell to move in the first direction and the second direction. The second transfer component 11 and the first transfer component 12 are located in the movement of the metal shell. on track;

And during the movement of the transfer unit 2 in the first direction, the transfer unit 2 can be fixed to the metal shell on the first carrier 121, or separated from the metal shell on the second carrier 111; when During the movement of the transfer unit 2 in the second direction, the transfer unit 2 can transfer the metal shell to the second carrier 111 .

It can be understood that the transfer unit 2 can transfer the metal shell between the second work station and the first work station. When the second carrier 111 and the first carrier 121 carry the metal shell, The transfer unit 2 can move in the first direction and be fixed to the metal shell on the first carrier 121 at the first station, thereby constraining or carrying the metal shell to move in the second direction, and move it to the first station. After being mounted on the second carrier 111 of the second station, the transfer unit 2 moves in the first direction to separate from the metal shell, and then the transfer unit 2 returns from the second station to the first station, and again Repeat the above steps. During the operation of the transfer unit 2, the first transfer component 12 in the transfer unit 1 can run continuously to continuously carry the metal shell to a designated position, and the second transfer component 11 can transfer the metal shell placed in the second The metal shells on the carrier 111 are continuously transported out. In this way, the metal shell carried on the first transmission component 12 is continuously transferred to the second transmission component 11, thereby transferring the metal shell. When this equipment is used in production, the battery case on the first carrier 121 can be transferred to the second carrier 111, and the transfer of the battery case between two continuously running transfer assemblies can be realized.

More specifically, the second transmission component 11 also includes a synchronous belt 112 and a synchronous pulley 113 matching the synchronous belt 112. The synchronous belt 112 can run continuously driven by the synchronous pulley 113, so The second carrier 111 is fixedly installed on the synchronous belt 112;

The first transmission component 12 also includes a chain 122, a large sprocket 123 and a small sprocket 124 that match the chain 122. The chain 122 is drivingly connected to the large sprocket 123 and the small sprocket 124134. The large sprocket 123 and the small sprocket 124 are respectively arranged on both sides of the chain 122. The chain 122 can run continuously driven by the large sprocket 123. The first carrier 121 is fixedly arranged on On the chain 122;

The first spacing between adjacent first carriers 121 is different from the second spacing between adjacent second carriers 111 . It can be understood that driven by the large sprocket 123, the synchronous belt 112 and the chain 122 can be continuously driven, thereby continuously transmitting the second carrier 111 and the first carrier 121 set thereon to the second work station. Or at the first work station, the transfer unit 2 can transfer the metal shell from the first carrier 121 at the first work station to the second carrier 111 at the second work station. The arrangement spacing of the shells on the first conveying component 12 is different from the arrangement spacing on the second conveying component 11. Therefore, the metal shell is transferred from the first carrier 121 to the second carrier 111, which can realize metallurgy. Adjustment and conversion of shell arrangement spacing.

The first transmission component 12 also includes a small sprocket 124. The small sprocket 124 can be drivingly connected to the chain 122. The chain 122 can change the transmission trajectory under the driving of the small sprocket 124, so that the metal The housing is driven to the designated position.

Specifically, the number of the small sprockets 124 is at least two, the two small sprockets 124 can be drivingly connected to the chain 122, and the two small sprockets 124 can connect all the links between the two. The chain 122 is limited to always adhere to the large sprocket 123 for transmission. The metal shell is driven to a designated position, so that the transfer unit 2 is fixed to the metal shell of the first carrier 121 on the chain 122 to facilitate the transfer of the metal shell.

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

Furthermore, 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 the diameter of the large sprocket 123 . Please refer to Figure 5. The synchronous pulley 113 and the large sprocket 123 rotate coaxially, so the angular speed when they rotate is the same. According to the linear speed formula: linear speed = angular speed × radius, it can be seen that the synchronous belt The linear speed of the wheel 113 is smaller than the linear speed of the large sprocket 123, so the transfer unit 2 can be configured to make a quasi-linear motion between the second work station and the first work station, so that the movement of the transfer unit 2 The trajectory is simpler and the response is faster. The synchronous pulley 113 and the large sprocket 123 can be fixed with the main shaft 3 so that when the main shaft 3 rotates, the synchronous pulley 113 and the large sprocket 123 can rotate synchronously. In this implementation, a metal casing variable pitch equipment can realize the variable pitch arrangement of metal casings, and when realizing rapid transportation and arrangement of batteries in this working area, this equipment not only occupies a small space, but also passes the main shaft 3 Continuous rotation in a specified direction can achieve rapid response between the transfer units 1. When applied to production, the work efficiency of this process can be improved.

More specifically, the first distance between adjacent first carriers 121 is greater than the second distance between adjacent second carriers 111 . The second carrier 111 or the first carrier 121 can carry a metal shell. If the two adjacent second carriers 111 and/or the first carrier 121 both carry metal shells, then The first spacing between two adjacent metal shells on the chain 122 is greater than the second spacing between two adjacent metal shells on the synchronous belt 112, so that the metal shells can be arranged with a large spacing. Adjust to a small spacing arrangement.

Example 2

Please refer to FIGS. 2 to 7 , which is a metal shell pitch-changing device provided in this embodiment. Its structure is basically similar to that of Embodiment 1. The difference is that the transfer unit 2 includes a metal shell fixing mechanism 21, The first driving mechanism 22 and the second driving mechanism 23. The metal shell fixing mechanism 21 can detachably fix the metal shell. The first driving mechanism 22 and the second driving mechanism 23 are connected with the metal shell fixing mechanism. 21 transmission connection, the first driving mechanism 22 can drive the metal shell fixing mechanism 21 to move along the first direction, and the second driving mechanism 23 can drive the metal shell fixing mechanism 21 to move along the first direction. Two-way activity. It can be understood that when the metal shell fixing mechanism 21 travels to the first station, the metal shell fixing mechanism 21 can fix a metal shell and is further driven by the first driving mechanism 22 and/or the second driving structure. The metal shell is driven to move in the first direction and/or the second direction to separate from the first carrier 121, and then the metal shell fixing mechanism 21 is driven by the second driving mechanism 23 to move in the second direction, that is, from the second driving mechanism 23 to move in the second direction. One station moves to the second station, thereby moving the metal shell to the second station.

More specifically, the transfer unit 2 also includes a runner 24, and the metal shell fixing mechanism 21 movably cooperates with the runner 24, wherein the runner 24 is connected with the synchronous pulley 113 and the synchronous pulley 113. Large sprockets 123 are arranged on the main shaft 3 . The runner 24 , the synchronous pulley 113 , and the large sprocket 123 are all coaxially arranged with the main shaft 3 .

Furthermore, the runner 24 has a guide rail 25 arranged along the second direction. The first driving mechanism 22 is movably provided on the guide rail 25 and can be driven along the second driving mechanism 23 . The guide rail 25 is movable. The guide rails 25 limit the transfer unit 2 to a linear motion trajectory and prevent the transfer unit 2 from deviating from its reciprocating trajectory during operation, and the guide rails 25 can also be arranged according to actual usage conditions. As shown in Figure 7, they are arranged at equal intervals to avoid collision of each transfer unit 2 during work.

Example 3

Please refer to Figures 4 to 7, which is a metal-cased pitch-changing device provided in this embodiment. Its structure is basically similar to that of Embodiment 2. The difference is that the second driving mechanism 23 includes a cam driving mechanism, so The cam driving mechanism includes a cam 231 and a cam follower 232 that cooperates with the cam 231. The cam follower 232 is also fixedly connected with the metal shell fixing mechanism 21 or the second driving mechanism 23. The cam 231 and the rotating wheel One of the cams 24 can move around its own axis, causing relative movement between the cam follower 232 and the cam 231 , so that the metal shell fixing mechanism 21 can move along the guide rail 25 . The cam 231 can be understood as having a non-circular track groove, and the cam follower 232 slides in cooperation with the non-circular track.

More specifically, the cam driving mechanism also includes a first transmission component and a second transmission component. The first transmission component includes a first synchronization wheel 233 and a timing belt 234 that is drivingly connected to the first synchronization wheel 233, so The cam follower 232 can be fixedly arranged on the synchronous belt 234; the second transmission component includes a second synchronous wheel 235 and a chain 236 drivingly connected to the second synchronous wheel 235. The metal shell The fixing mechanism 21 can be fixedly arranged on the chain 236; the first synchronizing wheel 233 is drivingly connected to the second synchronizing wheel 235.

It can be understood that when the cam follower 232 slides along the non-circular track groove, the cam follower 232 actually moves in the circumferential direction of the runner 24 and follows the non-circular track groove. According to the shape of the track groove, it slides in the direction close to the spindle 3 or away from the spindle 3. When the cam follower 232 moves toward the main shaft 3, the synchronous belt 234 will be driven in the clockwise direction as shown in Figure 4, and the first synchronous wheel 233 is drivingly connected to the second synchronous wheel 235. Therefore, the chain 236 is driven counterclockwise, and the transfer unit 2 fixedly arranged by the chain 236 can move in a direction away from the main shaft 3, that is, from the first station to the second station; when the cam follower 232 moves away from the spindle 3, When the main shaft 3 moves in the direction, the synchronous belt 234 will drive in the counterclockwise direction as shown in Figure 4, the chain 236 will drive in the clockwise direction, and the transfer unit 2 will move in the direction closer to the main shaft 3, that is, it can move from the second workstation to the main shaft 3. move to the first station. In this embodiment, a pitch-changing device with a metal shell occupies a small area, and the runner 24 is driven by a driving unit to rotate in a specified direction. As the runner 24 rotates, the cam follower 232 moves along a non-linear direction. The circular track groove slides, and the transfer unit 2 reciprocates between the second station and the first station, constantly transferring the metal shells from large spacing to small spacing, and the response is rapid.

Further, the first synchronizing wheel 233 is provided with a first gear 237 coaxially, and the second synchronizing wheel 235 is provided with a second gear 238 coaxially. The first gear 237 is meshed and connected with the second gear 238 in transmission. The rotation radius of the first gear 237 is larger than the rotation radius of the second gear 238 . It can be understood that the first gear 237 meshes with the second gear 238 to drive the second gear 238 to rotate. When the two mesh and rotate, the angular speed of the first gear 237 is smaller than the angular speed 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 rapid movement and rapid response of the transfer unit 2.

Furthermore, the metal-cased pitch-changing device further includes a mounting bracket 26, which is disposed on the runner 24. The mounting bracket 26 is at least used to movablely set the first synchronizer. wheel 233 and the second synchronization wheel 235. More specifically, the transmission unit also includes an auxiliary wheel set, which can be disposed on the runner 24 and/or the mounting bracket 26, see Figure 4, to change the first conveyor belt. And/or the laying direction of the second conveyor belt can reduce the friction between the conveyor belt and other components while reasonably arranging the occupied space of the conveyor belt and reducing the occupied space of the metal-cased pitch variable equipment.

Furthermore, as shown in FIG. 5 , guide wheels can be provided in the second conveying assembly 11 and/or the first conveying assembly 12 so that the first conveying assembly 12 conveys the metal shell. The direction is consistent with the direction in which the second transmission component 11 outputs metal shells. Therefore, the pitch changing device of this metal shell can be configured to input metal shells arranged at long intervals on one side and output metal shells arranged at segment intervals on the other side. body to avoid confusion in production line transmission.

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 can be understood that the cam-shaped annular track groove has a circular track groove and a curved track groove protruding from the circular track groove. When the cam follower 232 slides and fits in the curved track groove, the transfer unit 2 can move from the first station to the second station and then back to the first station; when the cam follower 232 and When the quasi-circular track groove is slidably fitted, the transfer unit 2 can be maintained at the second station or the first station. By setting the cam-shaped track grooves of corresponding specifications, the movement distance of the transfer unit 2 and the time of staying/maintaining at the second station or the first station can be adjusted.

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

More preferably, the cam 231, the runner 24, the synchronous pulley 113, and the large sprocket 123 are all arranged with the main shaft 3, and the cam 231 can rotate with the main shaft 3. The wheel 24 , the synchronous pulley 113 and the large sprocket 123 are fixed and can rotate synchronously with the main shaft 3 . When a third driving mechanism drives the main shaft 3 to rotate, the cam follower 232 can slide along the cam-shaped annular track groove of the cam 231, thereby driving the metal shell fixing mechanism 21 to move in the second direction. The transfer unit 1 transfers the metal shell. Driven by the first driving mechanism 22, the metal shell fixing mechanism 21 can also move in the first direction to be fixed or separated from the metal shell. Here, the components interact with each other. With the cooperation, the distance of the metal casing arrangement can be changed, the transmission relationship between components can be simplified, and the spacing and arrangement distance of the metal casing can be changed through fewer drive units, thereby reducing the equipment's footprint and saving money. The cost.

Example 4

Please refer to Figure 2, which is a metal-cased pitch-changing device provided in this embodiment. Its structure is basically similar to that of Embodiment 3. The difference is that the runner 24 is provided with a plurality of metal-cased fixing mechanisms 21. And a plurality of guide rails 25 , each of the metal shell fixing mechanisms 21 is provided corresponding to at least one guide rail 25 , and the guide rails 25 are sequentially arranged along the circumferential direction of the runner 24 . Referring to the above operation of multiple transfer units 2, when the runner 24 rotates, the transfer units 2 can move between the second station and the first station. As shown in Figure 2, the runner 24 Multiple transfer units 2 provided on 24 can be in different states. It can be understood that when a metal shell fixing mechanism 21 moves from a metal shell fixed on the first carrier 121 to the second carrier 111, another metal shell on the runner 24 moves to the next first carrier. Tool 121, and prepare to fix the metal shell on it. A plurality of metal shell fixing mechanisms 21 on the runner 24 are arranged in sequence, so that the metal shell can be continuously placed on the second step on the timing belt 112. 111 vehicles. Therefore, the handling rate of the equipment can be increased by increasing the number of metal shell fixing mechanisms 21 and arranging the spacing of the metal shell fixing mechanisms 21. For example, the metal shell fixing mechanisms 21 can be arranged at equal intervals. . Increasing the transfer rate of the transfer unit 2 can more closely match the production speed of metal shells, and the metal shells can be quickly adjusted from long-distance arrangement to short-distance arrangement.

The invention provides a metal shell pitch changing device that can grab the metal shell from the synchronous belt 112 with a larger spacing and place it on the chain 122 with a smaller spacing. Compared with the conventional multi-station robot implementation, the requirements for the robot's operating speed and placement of activity areas are very high, especially in the field of metal shell production, which not only requires a larger number of robots , and the cost of maintenance and space placement will be greatly increased. Compared with the "positive and negative thread screw rotation pitch changing mechanism" and the cooperation of the guide groove and the guide plate to achieve pitch change, neither of them can meet the demand for long-distance transmission of the metal shell, and both need to be achieved by the reciprocating rotation of the cylinder or motor. , its working efficiency is too low for the production speed of metal casings.

Using a metal shell pitch-changing equipment can not only realize the conversion of metal shells from long distance arrangement to short distance arrangement, but also can continue to transfer the short distance arranged products to the next process. It is applied to metal shells. During production, it can be adapted to high-speed transmission of metal casings.

Furthermore, when the present invention is applied to actual production, the second carrier 111 fixes the metal shell through magnetic adsorption or negative pressure adsorption. That is, the second carrier 111 can fix the metal shell through negative pressure or magnetic adsorption, and transport the metal shell to a designated position.

Specifically, the second carrier 111 includes a magnetic adsorption mechanism or a negative pressure adsorption mechanism. The second carrier 111 can constrain and fix the metal shell through a magnetic adsorption structure or a negative pressure adsorption mechanism.

Specifically, the metal shell includes a ferromagnetic structure and/or a magnet structure that can be magnetically adsorbed. That is, the metal shell has a ferromagnetic structure. For example, the metal shell can be made of ferrous material. The second carrier 111 has a magnetic adsorption mechanism. The second carrier 111 can be magnetically adsorbed. Restrained metal casing. Compared with clamping and constraining metal shells, damage to the appearance of the metal shell can be avoided.

Specifically, the first carrier 121 fixes the metal shell through magnetic adsorption or negative pressure adsorption. That is, the first carrier 121 can fix the metal shell through negative pressure or magnetic adsorption, and transport the metal shell to a designated position.

Specifically, the first carrier 121 includes a magnetic adsorption mechanism or a negative pressure adsorption mechanism. The first carrier 121 can constrain and fix the metal shell through a magnetic adsorption structure or a negative pressure adsorption mechanism.

Specifically, the metal shell includes a ferromagnetic structure and/or a magnet structure that can be magnetically adsorbed. That is, the metal shell has a ferromagnetic structure. For example, the metal shell can be made of ferrous material. The first carrier 121 has a magnetic adsorption mechanism. The first carrier 121 can be magnetically adsorbed. Restrained metal casing. Compared with clamping and constraining metal shells, damage to the appearance of the metal shell can be avoided. As a result, the metal shell can be stably and firmly constrained on the carrier. The use of magnetic adsorption on the second carrier and the first carrier can minimize damage to the appearance of the metal shell and can be flexible. Quickly transport and transfer metal casings.

Example 5

Referring to Figures 1 to 3, this embodiment provides a metal shell pitch-changing device whose structure is basically similar to that of Embodiment 4. The difference is that the metal shell fixing mechanism 21 is a cylinder, so The metal shell fixing mechanism 21 can constrain the metal shell by being plugged into the metal shell. Referring to Figures 1-3, it can be understood that when the cylinder moves to the first station, the piston rod of the cylinder can be driven by a first drive unit to extend, and the extended piston rod is in contact with the first station. Metal shell plug-in. The cylinder moves from the first station to the second station. When the cylinder moves to the first station, the first carrier 121 constrains the metal shell, and the piston rod of the cylinder can be driven by the first The unit is driven to retract, and the metal shell remains on the first carrier 121. The first transmission component 12 transports the first carrier 121 and the metal shell thereon out; the cylinder moves from the second station Move to the first station and repeat the above operation. In this way, the metal shells on the second transmission component 11 are moved to the first transmission component one by one. Compared with the common mechanical grabbing method mentioned above, it is simple and efficient, and realizes the movement of the metal shells between the two transmission components. It is compact, occupies a small area, responds quickly, and can be used in long-distance transportation environments. And because general manufacturers have high requirements for the appearance of metal casings, in the present invention, the cylinder can be plugged into the inner wall of the metal casing to transport or move the metal casing, avoiding the possibility of scratches on the appearance of the metal casing. , realize the movement of metal shell efficiently and quickly.

Furthermore, the first driving unit is a mechanical valve. The mechanical valve can be transmission connected with the main shaft 3. When the cylinder moves to the first station, the main shaft 3 rotates to drive the mechanical valve. The valve stem extends, allowing the compressed air to enter the air inlet at the rear of the cylinder, thereby extending the piston rod of the cylinder, plugging and fixing the piston rod with the metal shell, and moving the metal shell from the first Remove from the vehicle. When the cylinder moves to the second station, the valve stem of the mechanical valve switches to the other direction and allows compressed air to enter the air inlet at the front end of the cylinder, thereby retracting the piston rod of the cylinder and causing the piston to The rod is separated from the metal shell, and the metal shell is retained on the second carrier, so that the metal shell is converted from a long-spacing arrangement to a short-spacing arrangement.

Example 6

Please refer to Figure 1. This embodiment also provides a conveying production line with variable distance equipment. Its structure is basically similar to that of Embodiment 5. The difference is that it includes the components described in Embodiment 1 or 4 above. Metal shell pitch changing equipment, as well as a first production line and a second production line, the second conveying assembly 11 is at least used to convey the metal shells of the first production line to the first work station, the first conveying assembly 12 It is at least used to output the metal shell at the second work station to the second production line. The first production line can accept and transfer the metal shells to the second transfer assembly 11. The second transfer assembly 11 removes the metal shells on the first production line and transfers them to the position shown in Figure 5 , the first carrier carrying the metal shell is in the third and fourth press, and the metal shell is transported to the first transmission assembly 12 through the transfer unit 2, and the first transmission assembly 12 outputs the metal shell to the second production line and transported to the next process through the second production line. That is to say, it can realize the conversion of the spacing arrangement of metal casings between two production lines. In the production process of automobile power metal casings, since the entire automated production line is composed of many machines, and each machine has different designed functions, metal casings will be produced. The spacing of shells is different during the circulation process of the entire production line, and the production speed of metal shells is very high, even reaching 600-800 per minute. A conveyor with variable distance equipment is set up between different production lines. Line to form a conveying production line with variable distance equipment, which not only enables long-distance transportation of metal casings, but also responds quickly and can quickly adjust the distance of the metal casings.

The pitch-changing equipment for metal casings provided in Embodiments 1-5 of the present invention, and the conveying production line with the pitch-changing equipment provided in Embodiment 6, can not only be used to convey and transfer metal casings but also It can be used to transport and transfer other workpieces or materials, such as cylindrical battery cases, cans, cube-shaped battery cases and other shaped workpieces or materials. And specifically, the first carrier and the second carrier can be provided with placement slots corresponding to the outline of the workpiece, and the shape and size of the placement slots can be adjusted according to actual needs to make The invention provides a metal-cased pitch-changing device whose pitch-changing transfer work achieves the best working effect.

It should be understood that the above embodiments are only to illustrate the technical concepts and characteristics of the present invention. Their purpose is to enable those familiar with the technology to understand the content of the present invention and implement it accordingly, and cannot limit the scope of protection of the present invention. All equivalent changes or modifications made based on the spirit and essence of the present invention should be included in the protection 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).