CN221247665U - Support assembly machine of power battery lower box - Google Patents

Abstract

The utility model relates to the technical field of power battery manufacturing and discloses a bracket assembly machine for a lower box body of a power battery, which comprises a rack, a cam divider arranged on the rack, a motor in driving connection with the cam divider, and a rotary table arranged on the output end of the cam divider; the rotary table is provided with a support column for supporting the lower box body, a first positioning pin for positioning the lower box body and a pressing mechanism for pressing the lower box body on the support column; the bracket assembly machine not only completes the positioning of the lower box body through the mutual matching of the first positioning pin column, the supporting column and the pressing mechanism, but also prevents the lower box body from shifting or shaking when the bolts are installed; the motor drives the cam divider to index and rotate the turntable, so that the position of the lower box body is automatically adjusted, and a worker can conveniently and efficiently finish the operation of fastening bolts.

Description

Support assembly machine of power battery lower box

Technical Field

The utility model relates to the technical field of power battery manufacturing, in particular to a bracket assembly machine for a lower box body of a power battery.

Background

The power battery is an electric energy supply device of an electric automobile and consists of a power battery box body and a battery pack arranged in the power battery box body. In order to ensure the structural strength of the power battery and protect the battery pack of the power battery, a battery box body is arranged outside the power battery and consists of an upper box body and a lower box body, wherein the lower box body is a main bearing part and needs to have enough strength and rigidity, and the upper box body mainly plays a role in protecting a battery module.

After the lower box body is manufactured, two side surfaces of the lower box body are protruded to form a plurality of mounting parts, each mounting part is assembled with a bracket (also can be called as a hanging frame) through bolts, the fastening bolt operation is mainly completed in a manual mode in the assembly process, the lower box body can be placed on a workbench, due to the fact that a clamp is lack of fixing the lower box body, the lower box body is easy to shake when the bolts are fastened, the bolt tightening operation is affected, after the bracket assembly is completed on one side of the lower box body by a worker, the lower box body is lifted up to rotate 180 degrees horizontally, the bolt tightening operation can be performed on the other side, the labor is consumed, and the assembly efficiency is delayed.

It can be seen that there is a need for improvements and improvements in the art.

Disclosure of utility model

In view of the shortcomings of the prior art, the utility model aims to provide a bracket assembly machine for a lower box body of a power battery, which aims to clamp a main body of the lower box body, so that a worker can conveniently install a bracket and complete bolt tightening operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The bracket assembly machine for the lower box body of the power battery comprises a rack, a cam divider arranged on the rack, a motor in driving connection with the cam divider, and a rotary table arranged at the output end of the cam divider; the rotary table is provided with a support column for supporting the lower box body, a first positioning pin for positioning the lower box body and a pressing mechanism for pressing the lower box body on the support column; the turntable is also provided with second positioning pin columns which are the same as the mounting parts of the lower box body in number and are used for matching with hole sites on the bracket, and the rack is provided with tightening devices for fastening bolts.

As a further improvement of the above technical solution, the pressing mechanism includes 4 clamping type cylinders, wherein two clamping type cylinders are used for pressing one end of the lower box body, and the other two clamping type cylinders are used for pressing the other end of the lower box body; and a pressure head is arranged at the output end of each clamping type air cylinder.

As a further improvement of the technical scheme, the rotary table is provided with an induction component for detecting whether the lower box body is correctly placed on the rotary table.

As a further improvement of the technical scheme, the rotating disc is provided with a mounting fool-proof block.

As a further improvement of the technical scheme, the turntable is provided with a guide rod extending vertically.

As a further improvement of the technical scheme, the rack is further provided with a marking device, the rack is provided with an electric controller and a visual camera electrically connected with the electric controller, and the visual camera is used for shooting a picture of the bracket after the bracket is fixed on the lower box body through a bolt.

As a further improvement of the technical scheme, the marking device comprises a support, a sliding plate which is in sliding connection with the support and can move vertically, a first lifting cylinder for driving the sliding plate to lift, and a first marking device and a second marking device which are arranged on the sliding plate, wherein the first marking device is used for marking one side of the lower box body, and the second marking device is used for marking the other side of the lower box body.

As the further improvement of the technical scheme, the support assembly machine of the lower box body of the power battery further comprises a scanning head and a second lifting cylinder for driving the scanning head to vertically move, and a gap for avoiding the scanning head is formed in the rotary disc.

As a further improvement of the technical scheme, the stand is provided with an emergency brake button and a double-hand touch button for controlling the turntable to rotate 180 degrees.

As a further improvement of the technical scheme, the rack is provided with a material box for loading bolts.

The utility model has the beneficial effects that: compared with the prior art, the bracket assembly machine for the lower box body of the power battery provided by the utility model not only completes the positioning of the main body of the lower box body through the mutual matching of the first positioning pin column, the supporting column and the pressing mechanism, but also prevents the main body of the lower box body from shifting or shaking during the installation of bolts; the motor drives the cam divider to index and rotate the turntable, so that the position of the lower box body is automatically adjusted, and a worker can conveniently and efficiently finish the operation of fastening bolts.

Drawings

Fig. 1 is a perspective view of a bracket assembly machine.

Fig. 2 is a schematic diagram of a turntable and related structures.

Fig. 3 is a schematic diagram of a second configuration of the turntable and related structures.

Fig. 4 is a perspective view of the bracket mounted on the lower case body.

Fig. 5 is a perspective view of the lower case body.

Description of main reference numerals: the device comprises a 1-lower box body, 11-mounting parts, 12-threaded holes, 13-positioning lugs, 14-positioning holes, 15-rectangular openings, 21-brackets, 22-bolts, 30-operation stations, 31-platforms, 32-cam dividers, 33-motors, 34-turntables, 340-notches, 35-supporting columns, 36-first positioning pin columns, 37-pressing mechanisms, 38-second positioning pin columns, 4-tightening devices, 51-sensing assemblies, 52-mounting fool-proof blocks, 53-guide rods, 6-double-hand touch buttons, 7-material boxes, 8-marking devices, 81-supporting seats, 82-sliding plates, 83-first lifting cylinders, 84-first marking devices, 85-second marking devices, 86-upper buffering mechanisms, 87-lower buffering mechanisms, 91-sweeping wharfs and 92-second lifting cylinders.

Detailed Description

The utility model provides a bracket assembly machine for a lower box body of a power battery, which aims to make the purposes, technical schemes and effects of the utility model clearer and more definite, and further details the utility model by referring to the drawings and the embodiments. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

The brackets 21 are important components for mounting and fixing the battery box, and all the brackets 21 provide a stable framework, so that the battery box can be correctly mounted at the bottom of the vehicle, and the functions of bearing, absorbing shock, promoting heat dissipation and the like are also achieved, so that the safe operation of the battery system is ensured.

Each bracket 21 needs to be firmly fixed on the mounting portion 11 through a plurality of bolts 22, as can be seen from fig. 5, 3 threaded holes 12 are arranged on each mounting portion 11 of the lower case body 1, that is, a threaded hole 12 is arranged in the middle of the mounting portion 11, two threaded holes 12 are respectively arranged on two side surfaces of the mounting portion 11, and accordingly, each bracket 21 is provided with mounting holes which are the same in number as the threaded holes 12 and are in one-to-one correspondence, and the 3 bolts 22 need to be used for fixing. Two of the mounting parts 11 are additionally provided with positioning lugs 13, and the positioning lugs 13 are provided with positioning holes 14.

Referring to fig. 1-4, in order to facilitate the installation of the bolts 22, the present utility model provides a bracket assembly machine for a lower case of a power battery, which comprises a rack 31, a cam divider 32 arranged on the rack 31, a motor 33 in driving connection with the cam divider 32, and a turntable 34 arranged on an output end of the cam divider 32; the turntable 34 is provided with a support column 35 for supporting the lower box body 1, a first positioning pin 36 for positioning the lower box body 1, and a pressing mechanism 37 for pressing the lower box body 1 on the support column 35; the turntable 34 is also provided with second positioning pins 38 which are the same in number as the mounting parts 11 of the lower box body 1 and are used for matching with holes on the bracket 21, and the rack 31 is provided with a tightening device 4 for fastening bolts 22.

To standardize the operation of the staff, the bench 31 is provided with an operating station 30 at the rear thereof, and the staff stands on the operating station 30 with his body facing the front turntable 34.

During assembly, a worker carries the lower box body 1 onto the turntable 34, then the support columns 35 support the bottom of the lower box body 1, and the two first positioning pins 36 are matched and butted with the positioning holes 14 on the positioning lugs 13, so that the position of the lower box body 1 is basically fixed, and then the pressing mechanism 37 presses the lower box body 1 onto the support columns 35 to completely fix the lower box body 1. At this time, one side of the lower case body 1 faces the worker, the worker can mount the bracket 21 on the 3 mounting portions 11 on the side, the bracket 21 is matched with the mounting portions 11, positioning and supporting of the bracket 21 are achieved through matching of the second positioning pins 38 with hole positions on the bracket 21, the threaded holes 12 are guaranteed to be aligned with the mounting holes one by one, then the worker passes the bolts 22 through the mounting holes and put the bolts into the threaded holes 12, and finally the tightening device 4 is used for tightening the bolts 22 to complete assembly of the bracket 21. When the mounting of the bracket 21 on one side of the lower case body 1 is completed, the motor 33 drives the cam divider 32 to index the turn table 34, specifically, the turn table 34 to turn 180 ° so that the other side of the lower case body 1 faces the worker who, in the same manner as described above, continues to mount the bracket 21 on the 3 mounting portions 11 on the other side and bolt 22-fix the bracket 21. When all the brackets 21 are assembled, the motor 33 drives the cam divider 32 to index and rotate the rotary table 34, the rotary table 34 rotates 180 degrees again to reset, the pressing mechanism 37 releases the lower box body 1, and a worker removes the lower box body 1.

Compared with the prior art, the bracket assembly machine for the lower box body of the power battery provided by the utility model not only completes the positioning of the lower box body 1 through the mutual matching of the first positioning pin 36, the support column 35 and the pressing mechanism 37, but also prevents the lower box body 1 from shifting or shaking when the bolts 22 are installed; the motor 33 drives the cam divider 32 to index and rotate the turntable 34, so that the position of the lower box body 1 is automatically adjusted, and a worker can conveniently and efficiently finish the operation of the fastening bolt 22.

In this embodiment, the first dowel pin 36 is comprised of a post and a circular dowel pin disposed on the post, while the second dowel pin 38 is comprised of a post and a bushing dowel pin disposed on the post. The bolts 22 are preferably GB5789 hexagonal flange face bolts 22. The tightening device 4 preferably adopts an electric torque tightening gun.

Specifically, the pressing mechanism 37 includes 4 clamping cylinders, two of which are used for pressing one end of the lower case body 1, and the other two of which are used for pressing the other end of the lower case body 1; and a pressure head is arranged at the output end of each clamping type air cylinder. The clamping cylinder is matched with the pressure head to rapidly finish clamping or releasing operation, so that the working efficiency is improved. The clamping of the lower box body 1 can be realized by controlling the air source, and reliable clamping force is provided. In addition, the pressure head can avoid the placement and the disassembly of the lower box body 1 under the non-compression state.

Further, the turntable 34 is provided with a sensing assembly 51 for detecting whether the lower case body 1 is properly placed on the turntable 34. The sensing assembly 51 is specifically three photoelectric sensors, the three photoelectric sensors are distributed in a triangular mode, and when the three photoelectric sensors feed back signals at the same time, the lower box body 1 is placed and clamped in place; conversely, if there are one or more photosensors without feedback signals, it means that the lower housing body 1 is not in place.

Preferably, the turntable 34 is provided with a mounting fool-proof block 52. Due to the arrangement of the fool-proof block 52, workers are forced to put into the lower box body 1 according to the correct position, and the situation that the workers put the lower box body 1 reversely is effectively avoided.

When the lower case body 1 is placed, the alignment of the first positioning pin 36 and the positioning hole 14 is difficult to be observed from the viewpoint of a worker, and a rectangular opening 15 in the lower case body 1 is skillfully utilized. The turntable 34 is provided with guide rods 53 which extend vertically, the number of the guide rods 53 is preferably 3, and the top of the guide rods 53 forms a guide conical surface; when the lower box body 1 is placed, 3 guide rods 53 extend into the rectangular opening 15 and are in contact with the edges of the rectangular opening 15, and the position of the lower box body 1 is gradually corrected along with the guide conical surface, so that the lower box body 1 is stably placed in place.

Preferably, the stand 31 is further provided with a marking device 8, the stand 31 is provided with an electric controller and a vision camera electrically connected with the electric controller, and the vision camera is used for taking a picture of the bracket 21 fixed on the lower box body 1 through the bolt 22. It will be understood that, after the bracket 21 on one side of the lower box body 1 is installed, the turntable 34 rotates 180 ° so that the side of the lower box body 1 faces the marking device 8, and at this time, the vision camera shoots the assembly chart of the bracket 21 on the side of the lower box body 1 and uploads the assembly chart to the electronic controller, and compares the assembly chart with the preset assembly chart, if the comparison is correct, the marking device 8 marks the lower box body 1 to indicate that the lower box body 1 is correct, if the comparison is incorrect, the marking device 8 does not mark the lower box body 1, and the conditions of fewer bolts 22, missing bolts and no tightening are intelligently detected, thereby improving the product quality.

Specifically, the marking device 8 includes a support 81, a sliding plate 82 slidably connected with the support 81 and capable of moving vertically, a first lifting cylinder 83 for driving the sliding plate 82 to lift, and a first marking device 84 and a second marking device 85 disposed on the sliding plate 82, where the first marking device 84 is used for marking one side of the lower case body 1, and the second marking device 85 is used for marking the other side of the lower case body 1. When the marking device 8 is in a non-marking state, the piston rod of the first lifting cylinder 83 extends out to drive the sliding plate 82 and the first and second markers 84 and 85 on the sliding plate 82 to rise to the highest point so as to avoid interference to the placement and disassembly of the lower box body 1, and when the marking is required, the first lifting cylinder 83 drives the sliding plate 82 and the first and second markers 84 and 85 on the sliding plate 82 to descend, and the first and second markers 84 and 85 are selected for marking according to the situation.

Preferably, the support 81 is provided with an upper buffer mechanism for limiting the upward movement of the slide plate 82 and a lower buffer mechanism for limiting the downward movement of the slide plate 82.

Preferably, the bracket 21 assembly machine further comprises a scanning head 91 and a second lifting cylinder 92 for driving the scanning head 91 to move vertically, and the turntable 34 is provided with a notch 340 for avoiding the scanning head 91. When the lower box body 1 completes the installation of all the brackets 21, the second lifting cylinder 92 drives the scanning head 91 to ascend, and the scanning head 91 scans the bar code on the lower box body 1, so that the processing information of the lower box body 1 is input into the control system, and the monitoring is convenient.

Because when the turntable 34 rotates, the worker is too close to the turntable 34, or the fastening bolt 22 is still in operation, and the worker is easy to collide with the turntable to cause a safety accident, an emergency brake button and a two-hand touch button 6 for controlling the turntable 34 to rotate 180 DEG are arranged on the rack 31, and the worker needs to touch the two-hand touch buttons 6 respectively by two hands to start the turntable 34 to rotate.

Preferably, the rack 31 is provided with a material box 7 for loading the bolts 22, and a worker can directly grab the bolts 22 in the material box 7 by hand for feeding, so that the material box is convenient and quick. The material cartridges 7 are not limited to one, and may be provided in plural to reduce the feeding frequency. Of course, the rack 31 is provided with a material box 7 for loading the rack 21.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.

Claims (10)

1. The bracket assembly machine for the lower box body of the power battery is characterized by comprising a rack, a cam divider arranged on the rack, a motor in driving connection with the cam divider, and a rotary table arranged at the output end of the cam divider; the rotary table is provided with a support column for supporting the lower box body, a first positioning pin for positioning the lower box body and a pressing mechanism for pressing the lower box body on the support column; the turntable is also provided with second positioning pin columns which are the same as the mounting parts of the lower box body in number and are used for matching with hole sites on the bracket, and the rack is provided with tightening devices for fastening bolts.

2. The bracket assembly machine of a lower case of a power battery according to claim 1, wherein the pressing mechanism comprises 4 clamping type cylinders, two of which are used for pressing one end of the lower case body, and the other two of which are used for pressing the other end of the lower case body;

And a pressure head is arranged at the output end of each clamping type air cylinder.

3. The power cell lower case bracket assembly machine of claim 1, wherein the turntable is provided with a sensing assembly for detecting whether the lower case body is properly placed on the turntable.

4. The bracket assembly machine for the lower case of the power battery according to claim 1, wherein the turntable is provided with a mounting fool-proof block.

5. The power cell lower case bracket assembly machine according to claim 1, wherein the turntable is provided with a vertically extending guide bar.

6. The bracket assembly machine for the lower box body of the power battery according to claim 1, wherein the rack is further provided with a marking device, the rack is provided with an electric controller and a visual camera electrically connected with the electric controller, and the visual camera is used for shooting a picture of the bracket fixed on the main body of the lower box body through bolts.

7. The power cell lower case bracket assembly machine according to claim 6, wherein the marking device comprises a support, a sliding plate which is slidably connected with the support and can move vertically, a first lifting cylinder for driving the sliding plate to lift, and a first marking device and a second marking device which are arranged on the sliding plate, wherein the first marking device is used for marking one side of the lower case body, and the second marking device is used for marking the other side of the lower case body.

8. The support assembly machine for the lower power battery box body according to claim 1, further comprising a scanning head and a second lifting cylinder for driving the scanning head to move vertically, wherein the turntable is provided with a notch for avoiding the scanning head.

9. The bracket assembly machine for the power battery lower case according to claim 1, wherein the stand is provided with an emergency brake button and a two-hand touch button for controlling the turntable to rotate 180 °.

10. The bracket assembly machine for the lower case of the power battery according to claim 1, wherein a material box for loading the bolts is provided on the stand.