Cooling shaping tool

Abstract

The utility model relates to the technical field of battery shell production, in particular to a cooling shaping tool which comprises a supporting frame, a supporting plate, a fixing mechanism and a temperature detection device, the supporting plate is arranged on the supporting frame, and a workpiece groove used for limiting a battery shell is formed in the supporting plate; the plurality of fixing mechanisms are arranged on the supporting plate at intervals, and each fixing mechanism comprises a pressing unit for pressing the battery shell; the temperature detection device is arranged on the battery shell and / or in the workpiece groove and used for detecting the surface temperature of the battery shell. According to the cooling and shaping tool, the battery shell is pressed through the pressing unit, the battery shell is prevented from moving relative to the cooling and shaping tool, the surface temperature of the battery shell is detected through the temperature detection device, and it is guaranteed that the surface temperature of the battery shell is reduced to the target temperature; and the problem of local depression caused by improper cooling and shaping of the battery shell is avoided, so that the qualification rate of finished battery shells is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery housing production, and particularly relates to a cooling and shaping tooling. Background Art

[0002] The contemporary automotive industry is undergoing revolutionary changes, that is, traditional fuel vehicles are being gradually replaced by new energy vehicles, especially the proportion of electric vehicles in the sales volume of new energy vehicles is gradually increasing. As one of the core components of electric vehicles, the power battery pack is mainly composed of components such as battery modules, battery housings, and cooling components. Among them, the battery housing is usually formed by stamping and welding multiple sheet metals, resulting in an excessive self-weight of the battery housing, increasing the overall vehicle body mass, and affecting the driving range of electric vehicles. Therefore, the lightweight of the battery housing has become a development trend.

[0003] High Pressure Resin Transfer Molding (HP-RTM) refers to a molding process in which resin is mixed by impact and injected into a vacuum-sealed mold pre-laid with fiber-reinforced materials and pre-placed inserts under high pressure. After resin flow filling, impregnation, curing, and demolding, a composite product is obtained. Through high-pressure resin transfer molding, mass production of lightweight battery housings can be achieved. In the prior art, the demolded battery housing needs to be cooled and shaped. If the cooling and shaping are not in place, local depressions may occur in the battery housing, which will cause interference between the battery housing and the battery module during the assembly process of the power battery pack, and it cannot be accurately assembled in place, thereby affecting the qualification rate of the battery pack and increasing its production cost.

[0004] In view of this, the present application is specifically proposed. Utility Model Content

[0005] The present application provides a cooling and shaping tooling to solve the problem of how to improve the cooling and shaping quality of the battery housing.

[0006] On the one hand, the present application provides a cooling and shaping tooling, including:

[0007] A support frame;

[0008] A support plate, the support plate is arranged on the support frame, and a workpiece groove for limiting the battery housing is arranged on the support plate;

[0009] A fixing mechanism, a plurality of the fixing mechanisms are arranged on the support plate at intervals, and the fixing mechanism includes a pressing unit for performing a pressing operation on the battery housing;

[0010] A temperature detection device, the temperature detection device is arranged on the battery housing and / or in the workpiece groove for detecting the surface temperature of the battery housing.

[0011] In some embodiments, a plurality of the temperature detection devices are spaced apart and disposed on the battery housing and / or within the workpiece tank, for detecting the temperatures of different surfaces of the battery housing and / or the temperatures at different positions on the same surface of the battery housing.

[0012] In some embodiments, the cooling and shaping tooling further includes:

[0013] a control mechanism, which is connected to the temperature detection device and receives temperature data sent by at least one of the temperature detection devices;

[0014] The fixing mechanism includes a lifting unit for performing a lifting operation on the pressing unit, wherein,

[0015] the control mechanism is connected to the lifting unit and determines whether to control the lifting unit to perform the lifting operation according to the temperature data.

[0016] In some embodiments, the lifting unit includes a fixed portion disposed on the support plate and a movable portion movable relative to the fixed portion, and the top end of the movable portion is connected to the pressing unit.

[0017] In some embodiments, the lifting unit is a pneumatic actuator, the pneumatic actuator includes a cylinder body and a piston rod, a piston rod cavity is formed inside the cylinder body, the bottom end of the piston rod penetrates through the cylinder body and extends into the piston rod cavity, and the top end of the piston rod is located outside the piston rod cavity and is connected to the pressing unit.

[0018] In some embodiments, the pneumatic actuator further includes a gas supply device, a first air pipe and a second air pipe, one of the first air pipe and the second air pipe is configured as an air inlet pipe, and the other is configured as an exhaust pipe, the gas supply device supplies gas into the piston rod cavity through the air inlet pipe, and the gas in the piston rod cavity flows back into the gas supply device through the exhaust pipe;

[0019] A partial area on the top surface of the support plate is recessed downward to form a pipe embedding groove, and at least a part of the first air pipe and the second air pipe are disposed in the pipe embedding groove.

[0020] In some embodiments, the support plate is provided with through holes penetrating through the bottom of the pipe embedding groove, and a plurality of the through holes are spaced apart on the support plate, so that the first air pipe and the second air pipe can pass through the through holes and communicate with the piston rod cavity of the corresponding cylinder body.

[0021] In some embodiments, the pressing unit includes:

[0022] A first horizontal plate, one end of the first horizontal plate is connected to the top end of the movable part;

[0023] A second horizontal plate, the second horizontal plate is vertically arranged below the first horizontal plate and connected to the other end thereof, and the second horizontal plate can be detachably abutted against the top surface of the battery housing for performing a pressing operation on the battery housing.

[0024] In some embodiments, a partial area of the top surface of the support plate is recessed downward to form the workpiece groove, and a ventilation opening penetrating through the bottom of the workpiece groove is arranged on the support plate.

[0025] In some embodiments, the cooling and shaping tooling further includes a cooling mechanism for performing a cooling operation on the battery housing;

[0026] The control mechanism is connected to the cooling mechanism and determines whether to control the cooling mechanism to perform the cooling operation according to the temperature data.

[0027] After adopting the above technical solutions, the present application has the following beneficial effects compared with the prior art.

[0028] 1. For the cooling and shaping tooling in the present application, the battery housing is pressed by the pressing unit to prevent the battery housing from moving relative to the cooling and shaping tooling, and the surface temperature of the battery housing is detected by the temperature detection device to ensure that the surface temperature of the battery housing is reduced to the target temperature, avoiding the problem of local depression due to insufficient cooling and shaping of the battery housing, thereby improving the qualified rate of the battery housing finished product.

[0029] 2. For the cooling and shaping tooling in the present application, the workpiece groove is arranged on the support plate, and the battery housing to be cooled and shaped is limited by the workpiece groove, which not only enhances the stability of the battery housing, prevents the battery housing from moving relative to the cooling and shaping tooling, but also facilitates the rapid transfer of the battery housing to the next process, improving the production efficiency of the battery housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of a cooling and shaping tooling in an embodiment of the present application;

[0031] Figure 2 is Figure 1 a partial enlarged view of part A in

[0032] Figure 3 is a top view of a fixing mechanism in an embodiment of the present application;

[0033] Figure 4 is Figure 3 a sectional view taken along the line A-A in

[0034] Figure 5 It is a schematic structural diagram of the air supply device in the embodiment of the present application.

[0035] In the figure: 100, cooling and shaping tooling; 110, support frame; 120, support plate; 130, temperature detection device; 140, control mechanism; 150, fixing mechanism; 151, pressing unit; 1511, first horizontal plate; 1512, second horizontal plate; 152, lifting unit; 1521, cylinder block; 15211, first cylinder joint; 15212, second cylinder joint; 15213, piston rod cavity; 1522, piston rod; 1523, base; 1524, air supply device; 15241, first air supply joint; 15242, second air supply joint; 200, battery housing. Specific embodiments

[0036] Next, the technical solutions of the present application will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] A cooling and shaping tooling 100 is provided in the embodiment of the present application for cooling and shaping the battery housing 200. For the specific structure of the cooling and shaping tooling 100, please refer to Figures 1 to 5 , which includes a support frame 110, a support plate 120, a fixing mechanism 150 and a temperature detection device 130. Among them, the support plate 120 is arranged on the support frame 110, and a workpiece groove (not shown in the figure) for limiting the battery housing 200 is arranged on the support plate 120; a plurality of fixing mechanisms 150 are arranged on the support plate 120 at intervals, and the fixing mechanism 150 includes a pressing unit 151 for performing a pressing operation on the battery housing 200; the temperature detection device 130 is arranged on the battery housing 200 and / or in the workpiece groove for detecting the surface temperature of the battery housing 200.

[0038] According to the cooling and shaping tooling 100 of the application, the battery housing 200 is pressed by the pressing unit 151 to prevent the battery housing 200 from moving relative to the cooling and shaping tooling 100. The surface temperature of the battery housing 200 is detected by the temperature detection device 130 to ensure that the surface temperature of the battery housing 200 is reduced to the target temperature, avoiding the problem of local depression due to insufficient cooling and shaping of the battery housing 200, thereby improving the qualified rate of the finished battery housing 200.

[0039] Such as Figure 1 and Figure 2As shown, a workpiece groove with an open top is provided on the support plate 120. After demolding, the battery case 200 is transferred into the workpiece groove through the open top of the workpiece groove. By providing the workpiece groove on the support plate 120 and using the workpiece groove to limit the battery case 200 to be cooled and shaped, not only the stability of the battery case 200 is enhanced, preventing the battery case 200 from moving relative to the cooling and shaping tooling 100, but also it is beneficial for the battery case 200 to be quickly transferred to the next process, improving the production efficiency of the battery case 200.

[0040] As Figure 1 and Figure 2 shown, a plurality of temperature detection devices 130 are arranged at intervals on the battery case 200, and are used to detect the temperature of different surfaces of the battery case 200 and / or the temperature at different positions on the same surface of the battery case 200. The more the number of the temperature detection devices 130, the more accurate the temperature detection result. In specific implementation, as Figure 1 shown, five temperature detection devices 130 are arranged at intervals on the top surface of the battery case 200, and are used to detect the temperature at different positions on the top surface of the battery case 200. Among them, one temperature detection device 130 is arranged in the middle of the top surface of the battery case 200, and the remaining four temperature detection devices 130 are respectively arranged around the top surface of the battery case 200, so as to realize the temperature acquisition at different positions on the top surface of the battery case 200. In order to ensure the accuracy of the temperature detection result and eliminate the deformation problem caused by incomplete cooling of the battery case 200, five temperature detection devices 130 are arranged at intervals on the bottom surface of the battery case 200, and are used to detect the temperature at different positions on the bottom surface of the battery case 200. Among them, the specific positions of the five temperature detection devices 130 arranged on the bottom surface of the battery case 200 are similar to the specific positions of the five temperature detection devices 130 arranged on the top surface of the battery case 200, and will not be elaborated here, so as to realize the temperature acquisition at different positions on the bottom surface of the battery case 200. Of course, the number of the plurality of temperature detection devices 130 is not limited to five, and it can also be two, three, four, six, etc.

[0041] As an alternative implementation, multiple temperature detection devices 130 are arranged at intervals in the workpiece tank, and are used to detect the temperatures at different positions on the same surface of the battery housing 200 and / or the temperatures at different positions on the same surface of the battery housing 200. Specifically, during implementation, five temperature detection devices 130 are arranged at intervals on the bottom of the workpiece tank and are located between the support plate 120 and the battery housing 200, and are used to detect the temperatures at different positions on the bottom surface of the battery housing 200. The more the number of the temperature detection devices 130, the more accurate the temperature detection result. Among them, one temperature detection device 130 is arranged in the middle of the bottom of the workpiece tank and is located below the middle of the bottom surface of the battery housing 200, and the remaining four temperature detection devices 130 are respectively arranged around the bottom of the workpiece tank and are located below the four sides of the bottom surface of the battery housing 200, so as to realize the temperature acquisition at different positions on the bottom surface of the battery housing 200 and ensure that the cooling degrees of the top and bottom of the battery housing 200 are quite the same.

[0042] As Figures 1 to 5 shown, the fixing mechanism 150 includes a lifting unit 152 for performing a lifting operation on the pressing unit 151. The pressing unit 151 is arranged above the battery housing 200. After the demolded battery housing 200 is transferred into the workpiece tank, the lifting unit 152 is controlled to drive the pressing unit 151 to move downward and abut against the top surface of the battery housing 200, so that the pressing unit 151 applies a downward pressure to the battery housing 200 to prevent the battery housing 200 from moving relative to the cooling and shaping tooling 100; when the temperature detection device 130 detects that the surface temperature of the battery housing 200 drops to the target temperature or below, the lifting unit 152 is controlled to drive the pressing unit 151 to move upward and separate from the battery housing 200, so that the battery housing 200 can be quickly transferred to the next process, shortening the production time of the battery housing 200 and improving the automation and intelligence levels of the production of the battery housing 200.

[0043] As Figure 1 and Figure 2 shown, multiple fixing mechanisms 150 are arranged at intervals on the support plate 120. Specifically, during implementation, multiple lifting units 152 are arranged around the outside of the workpiece tank, and each lifting unit 152 is integrally connected to the corresponding pressing unit 151. Multiple pressing units 151 can abut against the top surface of the battery housing 200 to realize the pressing operation on different positions of the top surface of the battery housing 200, ensuring that the entire battery housing 200 is uniformly stressed, preventing the battery housing 200 from being locally warped or curled, and enabling the cooled and shaped battery housing 200 to have good flatness, which is beneficial to improving the assembly efficiency of the battery pack.

[0044] As Figure 1 and Figure 2As shown, the cooling and shaping tooling 100 further includes a control mechanism 140. The control mechanism 140 is connected to the temperature detection device 130 and receives the temperature data sent by at least one temperature detection device 130. Among them, the control mechanism 140 is connected to the lifting unit 152 and determines whether to control the lifting unit 152 to perform lifting operations according to the temperature data. Specifically, when implementing, the control mechanism 140 receives the temperature data sent by at least one temperature detection device 130. When the surface temperature of the battery housing 200 drops to the target temperature or below, the control mechanism 140 issues a lifting operation instruction to the lifting unit 152, controls the lifting unit 152 to drive the pressing unit 151 to move upward and separate from the battery housing 200, eliminating the need for manual operation, simplifying the control process, accurately controlling the response time of the fixing mechanism 150, and realizing the automated and intelligent production of the battery housing 200.

[0045] As Figures 1 to 5 shown, the lifting unit 152 includes a fixed part provided on the support plate 120 and a movable part that is movable relative to the fixed part. The top end of the movable part is connected to the pressing unit 151, and the movable part can move up and down relative to the fixed part, thereby driving the pressing unit 151 to abut against or separate from the battery housing 200.

[0046] For the specific structure of the pressing unit 151, please refer to Figures 2 to 4 , which includes a first horizontal plate 1511 and a second horizontal plate 1512. Among them, one end of the first horizontal plate 1511 is connected to the top end of the movable part; the second horizontal plate 1512 is vertically arranged below the first horizontal plate 1511 and connected to its other end. The second horizontal plate 1512 can detachably abut against the top surface of the battery housing 200 for pressing the battery housing 200. By connecting the first horizontal plate 1511 to the movable part, it is ensured that the pressing unit 151 is firmly connected to the lifting unit 152, preventing the pressing unit 151 from affecting the stability of the fixing mechanism 150 during the lifting movement. And the second horizontal plate 1512 abuts against the top surface of the battery housing 200. The contact area between the second horizontal plate 1512 and the battery housing 200 is large, and the pressing effect is good, ensuring that the battery housing 200 is evenly stressed.

[0047] As Figures 2 to 4 shown, the horizontal plane projection of the pressing unit 151 is T-shaped, and the bottom surface of the second horizontal plate 1512 is attached to the top surface of the battery housing 200, which helps to increase the contact area between the second horizontal plate 1512 and the battery housing 200, further enhancing the fixing effect of the fixing mechanism 150. Specifically, when implementing, fasteners pass through the first horizontal plate 1511 and the second horizontal plate 1512 to fixedly connect the first horizontal plate 1511 and the second horizontal plate 1512. Of course, the first horizontal plate 1511 can be integrally formed with the second horizontal plate 1512, or they can be fixedly connected by welding, bonding, etc.

[0048] As shown Figure 4 in FIG. 2, the lifting unit 152 is a pneumatic actuator, which includes a cylinder block 1521 and a piston rod 1522. A piston rod cavity 15213 is formed inside the cylinder block 1521. The bottom end of the piston rod 1522 penetrates through the cylinder block 1521 and extends into the piston rod cavity 15213. The top end of the piston rod 1522 is located outside the piston rod cavity 15213 and is connected to the pressing unit 151. The piston rod 1522 can be telescopically arranged inside the cylinder block 1521, so as to drive the pressing unit 151 to move up and down. This pneumatic actuator not only has the advantages of compact structure, light weight, small occupied space and convenient disassembly and assembly, but also can bear a large load and drive the pressing unit 151 to move smoothly in a straight line, which is suitable for industrial production applications.

[0049] As shown Figure 4 in FIG. 3, the top surface of the piston rod 1522 is flat, and the bottom surface of the first horizontal plate 1511 is attached to the top surface of the piston rod 1522. During specific implementation, a fastener penetrates through the first horizontal plate 1511 and the piston rod 1522 to fixedly connect the first horizontal plate 1511 and the piston rod 1522. Of course, the first horizontal plate 1511 can be integrally formed with the piston rod 1522, or it can also be fixedly connected by welding, bonding or other means.

[0050] As shown Figure 2 and Figure 5 in FIGS. 4 and 5, the pneumatic actuator further includes a gas supply device 1524, a first air pipe and a second air pipe. One of the first air pipe and the second air pipe is configured as an intake pipe, and the other is configured as an exhaust pipe. The gas supply device 1524 supplies gas into the piston rod cavity 15213 through the intake pipe, and the gas in the piston rod cavity 15213 flows back to the gas supply device 1524 through the exhaust pipe, so as to drive the piston rod 1522 to drive the pressing unit 151 to perform a linear motion by using compressed air as a power source.

[0051] As shown Figure 2 and Figure 5 in FIGS. 6 and 7, the cylinder block 1521 includes a first cylinder joint 15211 and a second cylinder joint 15212 arranged up and down. The first cylinder joint 15211 and the second cylinder joint 15212 are respectively communicated with the piston rod cavity 15213 to form a double-acting cylinder. The gas supply device 1524 includes a first gas supply joint 15241 and a second gas supply joint 15242. The first gas supply joint 15241 is communicated with the first cylinder joint 15211 through the first air pipe, and the second gas supply joint 15242 is communicated with the second cylinder joint 15212 through the second air pipe to realize alternate gas supply on the upper and lower sides, so as to drive the piston rod 1522 to reciprocate up and down.

[0052] As shown Figures 2 to 4As shown in the figure, the pneumatic actuator further includes a base 1523, which is disposed between the support plate 120 and the cylinder block 1521. Both ends of the base 1523 are respectively connected to the cylinder block 1521 and the support plate 120. In specific implementation, a plurality of fasteners respectively penetrate through the base 1523 and the cylinder block 1521 and the base 1523 and the support plate 120, so that the base 1523 is fixedly connected to the cylinder block 1521 and the base 1523 is fixedly connected to the support plate 120. Of course, the base 1523 can be integrally formed with the cylinder block 1521 and the support plate 120, and it can also be fixedly connected by means of welding, bonding, etc.

[0053] As an alternative implementation, a partial area on the top surface of the support plate 120 is recessed downward to form a pipe embedding groove, and at least a part of the first air pipe and the second air pipe are disposed in the pipe embedding groove, so that the first air pipe and the second air pipe are received in the pipe embedding groove, which can not only reduce the space occupied by the first air pipe and the second air pipe, but also protect the first air pipe and the second air pipe, and prolong the service life of the pneumatic actuator.

[0054] As an alternative implementation, the support plate 120 is provided with through holes penetrating through the bottom of the pipe embedding groove, and a plurality of through holes are spaced on the support plate 120, so that the first air pipe and the second air pipe can pass through the through holes and communicate with the piston rod cavity 15213 of the corresponding cylinder block 1521, the pipeline is neater, the occupied space is smaller, and the layout is more reasonable.

[0055] As an alternative implementation, a partial area on the top surface of the support plate 120 is recessed downward to form a workpiece groove, and the support plate 120 is provided with ventilation holes penetrating through the bottom of the workpiece groove, which is beneficial to air flow, takes away the heat of the battery housing 200, and speeds up the cooling rate of the battery housing 200, thereby improving the production efficiency of the battery housing 200.

[0056] As an alternative implementation, the cooling and shaping tooling 100 further includes a cooling mechanism for performing a cooling operation on the battery housing 200; the control mechanism 140 is connected to the cooling mechanism and determines whether to control the cooling mechanism to perform a cooling operation according to the temperature data. Exemplarily, the cooling mechanism can be a cooling fan, and the cooling fan can be disposed above or below the battery housing 200. The cooling fan can generate a suction or blowing air flow near the battery housing 200. By connecting the control mechanism 140 to the cooling mechanism, it is determined whether to turn on or off the cooling mechanism and whether to adjust the operation mode of the cooling mechanism according to the difference between the actual temperature detected by the temperature detection device 130 and the target temperature. The cooling control method is more refined, which can not only improve the cooling efficiency and cooling quality, but also effectively control the energy consumption so as to achieve the purpose of energy saving.

[0057] Exemplarily, the temperature detection device 130 may be a temperature sensor that can sense temperature and convert it into an available output signal, while the control mechanism 140 may be a thermostat. The thermostat is communicatively connected to multiple temperature sensors. The thermostat automatically samples and instantaneously monitors the surface temperature of the battery housing 200 through the temperature sensors, and controls the lifting unit 152 to perform lifting operations and controls the cooling mechanism to perform cooling operations based on the detected surface temperature of the battery housing 200. This not only helps improve the cooling efficiency and quality of the battery housing 200, but also helps with energy conservation and consumption reduction, as well as realizing the automated and intelligent production of the battery housing 200.

[0058] In the description of the present application, 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", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0059] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0060] In the present application, unless otherwise clearly specified and defined, the terms "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0061] In this application, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A cooling and shaping tooling, characterized in that Comprising: A support frame; A support plate, which is arranged on the support frame, and a workpiece groove for limiting the battery housing is arranged on the support plate; Fixing mechanisms, a plurality of the fixing mechanisms are arranged on the support plate at intervals, and each fixing mechanism includes a pressing unit for performing a pressing operation on the battery housing; A temperature detection device, which is arranged on the battery housing and / or in the workpiece groove for detecting the surface temperature of the battery housing.

2. The cooling and shaping tooling according to claim 1, wherein A plurality of the temperature detection devices are arranged on the battery housing and / or in the workpiece groove at intervals for detecting the temperatures of different surfaces of the battery housing and / or the temperatures at different positions on the same surface of the battery housing.

3. The cooling and shaping tooling according to claim 1 or 2, characterized in that, The cooling and shaping tooling further comprises: A control mechanism, which is connected to the temperature detection device and receives temperature data sent by at least one of the temperature detection devices; Each fixing mechanism includes a lifting unit for performing a lifting operation on the pressing unit. Among them, The control mechanism is connected to the lifting unit and determines whether to control the lifting unit to perform the lifting operation according to the temperature data.

4. The cooling and shaping tooling according to claim 3, characterized in that, The lifting unit includes a fixing part arranged on the support plate and a movable part movable relative to the fixing part, and the top end of the movable part is connected to the pressing unit.

5. The cooling and shaping tooling according to claim 4, characterized in that, The lifting unit is a pneumatic actuator, which includes a cylinder body and a piston rod. A piston rod cavity is formed inside the cylinder body. The bottom end of the piston rod penetrates through the cylinder body and extends into the piston rod cavity, and the top end of the piston rod is located outside the piston rod cavity and is connected to the pressing unit.

6. The cooling and shaping tooling according to claim 5, characterized in that, The pneumatic actuator further includes a gas supply device, a first air pipe and a second air pipe. One of the first air pipe and the second air pipe is configured as an air inlet pipe, and the other is configured as an exhaust pipe. The gas supply device supplies gas into the piston rod cavity through the air inlet pipe, and the gas in the piston rod cavity flows back to the gas supply device through the exhaust pipe; Part of the top surface of the support plate is recessed downward to form a pipe embedding groove, and at least part of the first air pipe and the second air pipe are arranged in the pipe embedding groove.

7. The cooling and shaping tooling according to claim 6, characterized in that, The support plate is provided with through holes penetrating through the bottom of the pipe embedding groove, and a plurality of the through holes are arranged on the support plate at intervals so that the first air pipe and the second air pipe can pass through the through holes to communicate with the piston rod cavity of the corresponding cylinder body.

8. The cooling and shaping tooling according to claim 4, characterized in that, The pressing unit includes: A first horizontal plate, one end of which is connected to the top end of the movable part; A second horizontal plate, which is vertically arranged below the first horizontal plate and connected to the other end thereof. The second horizontal plate can be detachably abutted against the top surface of the battery housing for performing a pressing operation on the battery housing.

9. The cooling and shaping tooling according to claim 3, wherein Part of the top surface of the support plate is recessed downward to form the workpiece groove, and the support plate is provided with ventilation openings penetrating through the bottom of the workpiece groove.

10. The cooling and shaping tooling according to claim 9, wherein The cooling and shaping tooling further includes a cooling mechanism for performing a cooling operation on the battery housing; The control mechanism is connected to the cooling mechanism and determines whether to control the cooling mechanism to perform the cooling operation according to the temperature data.

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