Pitch-changing device and battery production equipment

Abstract

The present application provides a pitch-changing device and battery production equipment, which relate to the field of battery technology. The pitch-changing device includes a mounting assembly, a drive assembly, a transmission assembly and a clamping assembly, wherein the drive assembly includes a driving member, the driving member is mounted on the mounting assembly, and the driving member has a working end capable of reciprocating movement; the transmission assembly includes a plurality of connecting rod groups, each of the connecting rod groups includes at least one connecting rod, one end of the connecting rod is slidably connected to the mounting assembly, and the end of the connecting rod connected to the mounting assembly is connected to the working end of the driving member; the clamping assembly includes a plurality of clamps distributed in a straight line, the clamp is connected to one end of the connecting rod away from the driving member, and each of the connecting rods is correspondingly connected to a clamp. The present application can realize synchronous drive adjustment between multiple battery cells, and the overall structure is compact, reducing the installation space of the device.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a variable pitch device and battery production equipment. Background Art

[0002] In the battery production process, in order to reduce the turnover and transportation costs of the jig, the distance between the cells needs to be reduced as much as possible so that the jig can hold more cells. However, in the later process, the distance between the grouped cells needs to be changed to match the cell spacing requirements in subsequent production.

[0003] In the prior art, multiple cylinders and solenoid valves are often used, and each cylinder drives a battery cell to change the displacement. The control logic of this structure is relatively complex, and it is necessary to control the linkage of three cylinders to change the displacement. The synchronization of the three solenoid valves is poor, and the compactness of the mechanical structure is poor. To this end, a variable displacement device and battery production equipment are now provided. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a pitch changing device and a battery production equipment, aiming to solve the technical problem of poor synchronization in the pitch changing process of battery cells in the prior art.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] In a first aspect, an embodiment of the present application provides a pitch-changing device, including:

[0007] Install components;

[0008] A driving assembly, the driving assembly comprising a driving member, the driving member being mounted on the mounting assembly, and the driving member having a working end capable of reciprocating movement;

[0009] A transmission assembly, the transmission assembly comprising a plurality of connecting rod groups, each of the connecting rod groups comprising at least one connecting rod, one end of the connecting rod being slidably connected to the mounting assembly, and one end of the connecting rod connected to the mounting assembly being connected to the working end of the driving member;

[0010] The clamping assembly comprises a plurality of clamps distributed along a straight line, wherein the clamps are connected to an end of the connecting rod away from the driving member, and each connecting rod is correspondingly connected to one of the clamps.

[0011] In one of the embodiments of the first aspect, the transmission assembly further includes a transmission rod and a plurality of mounting blocks, the plurality of connecting rod groups are distributed and correspondingly mounted on different mounting blocks, and the transmission rod is provided between two adjacent mounting blocks.

[0012] In one embodiment of the first aspect, each of the mounting blocks is provided with a limit block, the transmission rod passes through a plurality of the limit blocks in sequence, and one end of the transmission rod away from the driving member is fixed to one of the limit blocks away from the driving member.

[0013] In one of the embodiments of the first aspect, a retaining ring is provided between two adjacent mounting blocks, the retaining ring is sleeved on the outer side of the transmission rod, an elastic member is provided on the side of the retaining ring away from the driving member, and both ends of the elastic member are respectively abutted against the retaining ring and the limit block.

[0014] In one of the embodiments of the first aspect, a cap body is provided at one end of the transmission rod away from the clamp, and the cap body abuts against the limit block.

[0015] In one of the embodiments of the first aspect, the mounting assembly includes a first mounting plate and a second mounting plate, the first mounting plate is vertically arranged to the second mounting plate, the connecting rod group is slidably arranged on the first mounting plate, and the clamp is slidably arranged on the second mounting plate.

[0016] In one of the embodiments of the first aspect, the mounting assembly further includes a third mounting plate, the third mounting plate is arranged parallel to the first mounting plate, the driving member is installed between the third mounting plate and the first mounting plate, and the transmission assembly is slidably arranged on the third mounting plate.

[0017] In one embodiment of the first aspect, the first mounting plate is provided with slide rails distributed along a first direction, and the transmission assembly further comprises a plurality of sliders, and the sliders are slidably matched with the slide rails;

[0018] The second mounting plate is provided with a slide groove distributed along a second direction, and one end of the connecting rod away from the driving member passes through the slide groove and is connected to the clamp;

[0019] The first direction is perpendicular to the second direction.

[0020] In one of the embodiments of the first aspect, the driving assembly further comprises two oil pressure buffers arranged opposite to each other, and the two oil pressure buffers are respectively located at two opposite sides of the transmission assembly.

[0021] In a second aspect, an embodiment of the present application further provides a battery production device, comprising the variable pitch device described in any of the above embodiments.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows: the present application provides a pitch-changing device and a battery production device, which can be used for synchronous pitch-changing adjustment of materials. The pitch-changing device includes a mounting assembly, a driving assembly, a transmission assembly and a clamping assembly, wherein the driving member has a working end capable of reciprocating movement, the transmission assembly includes a plurality of connecting rod groups mounted on the mounting assembly, one end of the connecting rod is slidably connected to the mounting assembly and connected to the working end of the driving member, and the clamping assembly includes a plurality of clamps distributed in a straight line, and each connecting rod is correspondingly connected to a clamp. In this way, when the pitch-changing adjustment of the battery cell is required, each clamp corresponds to clamping a battery cell, and then through the telescopic drive of the driving member, the connecting rod opens outward or contracts inward, thereby increasing or reducing the spacing between the battery cells, realizing synchronous drive adjustment between multiple battery cells, and the overall structure is compact, reducing the installation space of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 The structure of the pitch changing device in some embodiments of the present application is shown. Figure 1 ;

[0025] Figure 2 The structure of the pitch changing device in some embodiments of the present application is shown. Figure 2 ;

[0026] Figure 3 It shows a schematic diagram of the structure of the installation components in some embodiments of the present application;

[0027] Figure 4 Shows Figure 3 A schematic diagram of the enlarged structure of part A;

[0028] Figure 5 A schematic diagram of the structure of a transmission assembly in some embodiments of the present application is shown;

[0029] Figure 6 Shows Figure 5 Schematic diagram of the enlarged structure of part B in FIG.

[0030] Description of main component symbols:

[0031] 100-variable pitch device; 110-mounting assembly; 111-first mounting plate; 112-second mounting plate; 1121-slideway; 113-third mounting plate; 1131-slideway; 120-driving assembly; 121-driving member; 122-hydraulic buffer; 130-transmission assembly; 131-connecting rod group; 1311-connecting rod; 132-mounting block; 133-transmission rod; 134-limiting block; 135-retaining ring; 136-elastic member; 137-sliding block; 138-cap body; 140-clamping assembly; 141-clamp;

[0032] x - first direction; y - second direction. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] Taking the pitch change of four battery cells as an example, in the prior art, one of the battery cells is used as the fixed end, and the other three are the displacement ends, and three cylinders are used to adjust the pitch of the three displacement battery cells respectively. Using a solenoid valve drive, the extended end of the cylinder is sensed in place using a magnetic switch, thereby adjusting the spacing of the battery cells. The control logic of the prior art is relatively complex, and it is necessary to control the three cylinders to work together to change the pitch. The power source of the cylinder comes from compressed air, and the stability of compressed air is poor, and the synchronization of the three solenoid valves is poor. In addition, the battery cell spacing in the battery cell frame is small, which requires the mechanical structure to be compact. Placing three cylinders in a small space results in a complex structure, which is inconvenient for technicians to maintain and service in the later stage.

[0039] To improve the above problems, the embodiment of the present application provides a pitch-changing device 100, which can be used for displacement adjustment of materials, specifically for synchronous pitch-changing adjustment of multiple battery cells. The pitch-changing device 100 provided in the present application can increase or decrease the spacing between battery cells, realize synchronous drive adjustment between multiple battery cells, and has a compact overall structure, reducing the installation space of the device.

[0040] like Figure 1 As shown, the pitch changing device 100 includes a mounting assembly 110, a driving assembly 120, a transmission assembly 130 and a clamping assembly 140. The driving assembly 120 includes a driving member 121, which is mounted on the mounting assembly 110 and has an operating end capable of reciprocating movement; the transmission assembly 130 includes a plurality of connecting rod groups 131, each of which includes at least one connecting rod 1311, one end of which is slidably connected to the mounting assembly 110, and one end of the connecting rod 1311 connected to the mounting assembly 110 is connected to the operating end of the driving member 121; the clamping assembly 140 includes a plurality of clamps 141 distributed along a straight line, the clamps 141 are connected to one end of the connecting rod 1311 away from the driving member 121, and each connecting rod 1311 is correspondingly connected to a clamp 141.

[0041] Exemplary, combined Figure 2 As shown, Figure 1 is an axial structural diagram of the pitch changing device 100, Figure 2 It is a side structural diagram of the pitch changing device 100 .

[0042] The mounting assembly 110 may be a metal workpiece, serving as a mounting carrier for the driving assembly 120 , the transmission assembly 130 , and the clamping assembly 140 , and the pitch-changing device 100 may be mounted on a work station or a robot arm.

[0043] The driving assembly 120 is mounted on the mounting assembly 110, and the driving member 121 can be a pneumatic cylinder, a hydraulic cylinder or a linear motor. In this embodiment, the driving member 121 can be a pneumatic cylinder. One end of the pneumatic cylinder can move up and down under the drive of an external air compressor system, thereby driving the contraction and expansion of the transmission mechanism.

[0044] The transmission assembly 130 includes a plurality of connecting rod groups 131, each of which is arranged at intervals along the first direction x, and each of which may include one or more connecting rods 1311. Since the plurality of battery cells are located on the same horizontal plane, the length of the connecting rod 1311 located at the top is correspondingly greater than the length of the connecting rod 1311 located at the bottom, and the specific size may be set according to actual needs, so that the ends of different connecting rods 1311 away from the driving member 121 are all located on the same horizontal line.

[0045] The clamping assembly 140 includes a plurality of linearly arranged clamps 141 . The clamps 141 may be electric clamps or pneumatic clamps for automatically clamping or releasing the battery cells.

[0046] It should be noted that, in the present application, a plurality refers to a natural number greater than one, such as two, three, four, etc.; at least one refers to a natural number greater than or equal to one, such as one, two, three, four, etc. For ease of understanding, in the embodiment of the present application, an example is given in which the number of connecting rod groups 131 is two, each connecting rod group 131 has two connecting rods 1311, and the number of clamps 141 is four.

[0047] During the operation, the robot arm drives the pitch-changing device 100 to be located above the loading jig with the battery cells. At this time, the connecting rod 1311 is in a retracted state, and the four clamps 141 are in a close state, thereby clamping the four battery cells that are closely arranged in the jig. When transferring to the next process, the connecting rod 1311 can be driven downward by the driving member 121, so that the connecting rod 1311 is opened, and the clamps 141 clamp the battery cells away from each other, and the descending height of the driving member 121 is adjusted according to the preset spacing size, so that the battery cells reach the set spacing of the process.

[0048] like Figure 3 As shown, in some embodiments, the transmission assembly 130 further includes a transmission rod 133 and a plurality of mounting blocks 132 , a plurality of connecting rod groups 131 are distributed and correspondingly installed on different mounting blocks 132 , and a transmission rod 133 is provided between two adjacent mounting blocks 132 .

[0049] Exemplarily, there are two mounting blocks 132, both of which are slidably connected to the mounting assembly 110, and the transmission rod 133 is sequentially connected to the two mounting blocks 132, and two connecting rods 1311 are relatively arranged on both sides of each mounting block 132. The working end of the driving member 121 is connected to a mounting block 132 located above, so that the two mounting blocks 132 are driven to move up and down through the transmission rod 133 to realize the retracting and extending operation of the connecting rod 1311.

[0050] Combination Figure 4 and Figure 6 As shown, in some embodiments, each mounting block 132 is provided with a limit block 134 , the transmission rod 133 passes through multiple limit blocks 134 in sequence, and one end of the transmission rod 133 away from the driving member 121 is fixed to a limit block 134 away from the driving member 121 .

[0051] Exemplarily, the limit block 134 is fixed to one side of the mounting block 132, and a through hole is provided on the limit block 134. The transmission rod 133 passes through the through holes of the two limit blocks 134 in sequence and is fixed to a lower limit block 134, so that during the initial operation of the driving member 121, only the upper mounting block 132 can be driven to move, thereby moving the two battery cells on the side. After the battery cells on the side reach the set position, the driving member 121 continues to move downward to adjust the distance between the two middle battery cells.

[0052] like Figure 5 As shown, in some embodiments, a retaining ring 135 is provided between two adjacent mounting blocks 132, the retaining ring 135 is sleeved on the outer side of the transmission rod 133, and an elastic member 136 is provided on the side of the retaining ring 135 away from the driving member 121, and the two ends of the elastic member 136 are respectively abutted against the retaining ring 135 and the limit block 134.

[0053] Exemplarily, the retaining ring 135 is sleeved on the transmission rod 133 and can slide up and down along the transmission rod 133, and the elastic member 136 can be a coil spring. The elastic member 136 is sleeved on the transmission, and in the initial state, the spring is in a relaxed state, and the retaining ring 135 overlaps the spring. As the driving member 121 drives the upper mounting block 132 to move downward, the mounting block 132 abuts against the retaining ring 135 and compresses the spring downward. When the elastic member 136 reaches the maximum contraction limit, the mounting block 132 located below drives the transmission rod 133 to move downward at the same time to adjust the distance between the two middle cells.

[0054] like Figure 6 As shown, in some embodiments, a cap body 138 is provided at one end of the transmission rod 133 away from the clamp 141 , and the cap body 138 abuts against the limiting block 134 .

[0055] Exemplarily, the outer diameter of the cap body 138 is larger than the through hole diameter of the mounting block 132, so that after the transmission rod 133 passes through the upper mounting block 132, the transmission rod 133 cannot fall off from the mounting block 132 due to the restriction of the cap body 138, thereby ensuring that the transmission rod 133 remains stable during operation.

[0056] like Figure 3 As shown, in some embodiments, the mounting assembly 110 includes a first mounting plate 111 and a second mounting plate 112 , the first mounting plate 111 and the second mounting plate 112 are vertically arranged, the connecting rod group 131 is slidably arranged on the first mounting plate 111 , and the clamp 141 is slidably arranged on the second mounting plate 112 .

[0057] Exemplarily, the first mounting plate 111 and the second mounting plate 112 may both be planar metal plates, and the first mounting plate 111 and the second mounting plate 112 are respectively arranged vertically along the first direction x and the second direction y, so that the connecting rod assembly 131 moves up and down along the first direction x, and the battery cell is adjusted in the second direction y.

[0058] like Figure 3 As shown, in some embodiments, the mounting assembly 110 also includes a third mounting plate 113, the third mounting plate 113 is arranged parallel to the first mounting plate 111, the driving member 121 is installed between the third mounting plate 113 and the first mounting plate 111, and the transmission assembly 130 is slidably arranged on the third mounting plate 113.

[0059] Exemplarily, the third mounting plate 113 is connected to the first mounting plate 111 via a connecting pin, so that an installation gap is left between the third mounting plate 113 and the first mounting plate 111. The driving member 121 is installed in the installation gap and drives the connecting rod group 131 to slide on the third mounting plate 113 along the first direction x.

[0060] like Figure 3 As shown, in some embodiments, the first mounting plate 111 is provided with a slide rail 1131 distributed along the first direction x, and the transmission assembly 130 also includes a plurality of sliders 137, and the sliders 137 are slidably matched with the slide rail 1131; the second mounting plate 112 is provided with a slide groove 1121 distributed along the second direction y, and the end of the connecting rod 1311 away from the driving member 121 is penetrated by the slide groove 1121 and connected to the clamp 141; the first direction x is perpendicular to the second direction y.

[0061] Exemplarily, the slide rail 1131 is fixedly arranged on the third mounting plate 113, the mounting block 132 is installed on the slider 137, and the working end of the driving member 121 is connected to the mounting block 132, thereby driving the mounting block 132 and the connecting rod 1311 to move. It can be understood that the second mounting plate 112 is also provided with a slide rail 1131 and a slider 137 for slidingly matching the clamp 141 with the second mounting plate 112, and the clamp 141 is fixedly installed on the slider 137 of the second mounting plate 112. At the same time, through the setting of the slide groove 1121, during the up and down movement of the driving member 121, the height of the clamp 141 does not change, and the connecting rod 1311 can only be retracted and extended, thereby realizing the adjustment of the distance between the clamp 141 and the battery cell.

[0062] Combination Figure 4 and Figure 6 As shown, in some embodiments, the driving assembly 120 further includes two oil pressure buffers 122 arranged opposite to each other, and the two oil pressure buffers 122 are respectively located at two opposite sides of the transmission assembly 130 .

[0063] Exemplarily, the oil pressure buffer 122 is respectively mounted on both ends of the third mounting plate 113 and can abut against the mounting block 132 located above, thereby limiting the maximum vertical displacement of the mounting block 132 and buffering the displacement pressure of the mounting block 132 .

[0064] An embodiment of the present application further provides a battery production device, comprising the variable pitch device 100 in any of the above embodiments.

[0065] This embodiment has the pitch changing device 100 in any of the above embodiments, and therefore has all the beneficial effects of the pitch changing device 100 in any of the above embodiments, which will not be described in detail here.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0067] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A pitch changing device, characterized in that: include: Install components; A driving assembly, the driving assembly comprising a driving member, the driving member being mounted on the mounting assembly, and the driving member having a working end capable of reciprocating movement; A transmission assembly, the transmission assembly comprising a plurality of connecting rod groups, each of the connecting rod groups comprising at least one connecting rod, one end of the connecting rod being slidably connected to the mounting assembly, and one end of the connecting rod connected to the mounting assembly being connected to the working end of the driving member; The clamping assembly comprises a plurality of clamps distributed along a straight line, wherein the clamps are connected to an end of the connecting rod away from the driving member, and each connecting rod is correspondingly connected to one of the clamps.

2. The pitch changing device according to claim 1, characterized in that: The transmission assembly also includes a transmission rod and a plurality of mounting blocks. The plurality of connecting rod groups are distributed and correspondingly mounted on different mounting blocks, and the transmission rod is arranged between two adjacent mounting blocks.

3. The pitch changing device according to claim 2, characterized in that: Each of the mounting blocks is provided with a limit block, the transmission rod is sequentially passed through a plurality of the limit blocks, and one end of the transmission rod away from the driving member is fixed to one of the limit blocks away from the driving member.

4. The pitch changing device according to claim 3, characterized in that: A retaining ring is provided between two adjacent mounting blocks, the retaining ring is sleeved on the outer side of the transmission rod, an elastic member is provided on the side of the retaining ring away from the driving member, and two ends of the elastic member are respectively in contact with the retaining ring and the limit block.

5. The pitch changing device according to claim 3, characterized in that: A cap body is arranged at one end of the transmission rod away from the clamp, and the cap body abuts against the limit block.

6. The pitch changing device according to claim 1, characterized in that: The mounting assembly includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are vertically arranged, the connecting rod group is slidably arranged on the first mounting plate, and the clamp is slidably arranged on the second mounting plate.

7. The pitch changing device according to claim 6, characterized in that: The mounting assembly further comprises a third mounting plate, the third mounting plate is arranged in parallel with the first mounting plate, the driving member is installed between the third mounting plate and the first mounting plate, and the transmission assembly is slidably arranged on the third mounting plate.

8. The pitch changing device according to claim 6, characterized in that: The first mounting plate is provided with a slide rail distributed along a first direction, and the transmission assembly further comprises a plurality of slide blocks, and the slide blocks are slidably matched with the slide rail; The second mounting plate is provided with a slide groove distributed along a second direction, and one end of the connecting rod away from the driving member passes through the slide groove and is connected to the clamp; The first direction is perpendicular to the second direction.

9. The pitch changing device according to any one of claims 1 to 8, characterized in that: The driving assembly further comprises two oil pressure buffers arranged opposite to each other, and the two oil pressure buffers are respectively located at two opposite sides of the transmission assembly.

10. A battery production device, characterized in that: The invention comprises the pitch changing device according to any one of claims 1 to 9.

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