Capacitor aluminum shell stamping clamp

Abstract

The utility model relates to a capacitor aluminum shell stamping clamp which comprises a base, a supporting mechanism is supported on the base in the mode that the working position of a movable die is limited, and a static die installed on the base is arranged below the movable die. The movable die can be driven by the supporting mechanism to descend so as to be matched with the static die to form a stamping die cavity, and therefore a plate placed on the static die can be stamped into a shell workpiece. A telescopic positioning mechanism capable of clamping and positioning the machining position of a plate in cooperation with a lifting mold table installed in the static mold in an embedded mode is arranged in the movable mold, and a suction and release assembly capable of adjustably adsorbing the plate or outputting purging airflow is further embedded in the telescopic positioning mechanism. And one side of the static mold is also provided with a pre-processing assembly for carrying out surface treatment on the plate. According to the utility model, a plate to be stamped can be clamped and positioned, so that the station stability in the process of deforming into a shell workpiece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum shell stamping forming equipment, in particular to a capacitor aluminum shell stamping fixture. Background Art

[0002] At present, new energy technology is developing rapidly in the fields of electricity and chemical technology, which is reflected in the development of new energy vehicles. New energy vehicles refer to all other energy vehicles except cars and diesel engines, including fuel cell vehicles, hybrid vehicles, hydrogen-powered vehicles and solar vehicles, etc. Their exhaust emissions are relatively low. Because of their environmental advantages, new energy vehicles are advocated by many countries, and the development of the new energy vehicle industry is also booming. Capacitors used in conjunction with new energy vehicles are particularly important.

[0003] A capacitor generally refers to a device that holds electric charge. Capacitors are one of the electronic components used in large quantities in electronic equipment. They are widely used in circuits for DC isolation, AC passing, coupling, bypassing, filtering, tuning circuits, energy conversion and control. A capacitor is composed of a layer of insulating dielectric sandwiched between two metal electrodes. When a voltage is applied between the two metal electrodes, charge will be stored on the electrodes. Therefore, the capacitor is an energy storage element. Any two conductors that are insulated from each other and very close to each other form a capacitor.

[0004] As a lightweight, high-strength metal material, aluminum shell has excellent thermal conductivity and corrosion resistance. The production of capacitor aluminum shells usually adopts die stamping. The mold is usually composed of an upper mold and a lower mold, which are opened and closed by an opening and closing mechanism. However, after the shell is formed in the mold, there is adhesion between the shell and the surface of the mold. The traditional shell removal method is to directly lift the formed shell directly. This method will cause the shell to be pulled and easily wear. At the same time, due to the close contact, it is not easy to eject the shell. In addition, during the stamping process, due to the limitation of the surface roughness of the plate, some plates with larger surface roughness are subjected to greater friction during the stamping deformation process, which makes the surface of the formed shell prone to wear and other defects. Finally, the existing stamping fixture usually only sets a peripheral plate limit structure. When the plate is deformed by the stamping action, the fixed peripheral plate limit structure cannot effectively ensure the stability of the plate position, which is easy to cause the plate to be offset during the process of stamping and transforming into a shell, resulting in dimensional deviation at the edge of the shell, affecting the quality of the stamping process. Utility Model Content

[0005] The utility model aims to provide a capacitor aluminum shell stamping fixture which can clamp and position a plate to be stamped to ensure the stability of the workstation during the process of deformation into a shell workpiece and can separate the shell and mold by blowing and pressing down to ensure that the separated shell has a high degree of integrity, so as to solve the problems that the existing capacitor aluminum shell stamping equipment cannot efficiently and high-quality separate the shell workpiece and the mold body after stamping, and the shell workpiece is easily damaged during the top separation process, and the existing capacitor aluminum shell stamping equipment cannot clamp and limit the plate with high stability during the process of deformation of the plate into the shell, and the single edge limit cannot ensure the positioning accuracy during the deformation of the plate, and it is easy to deviate and affect the forming quality.

[0006] The technical solution adopted by the utility model is: a capacitor aluminum shell stamping fixture, including a base, the support mechanism is supported on the base in a manner of limiting the working position of a movable mold, a static mold installed on the base is arranged below the movable mold, the movable mold can move downward under the drive of the support mechanism and cooperate with the static mold to construct a stamping cavity to punch the plate placed on the static mold into a shell workpiece, a telescopic positioning mechanism is arranged in the movable mold and can cooperate with the lifting mold platform embedded in the static mold to clamp and position the processing position of the plate, a suction and release component that can adjustably adsorb the plate or output a purge airflow is also embedded in the telescopic positioning mechanism, and a pre-processing component for surface treatment of the plate is also arranged on one side of the static mold.

[0007] According to a preferred embodiment, a forming mold cavity for accommodating the lifting mold platform is opened on the lower end surface of the movable mold, and a first installation groove for accommodating the telescopic positioning mechanism is opened at the bottom of the chamber of the forming mold cavity with an opening facing downward. The telescopic positioning mechanism can be adjusted to extend from the first installation groove to the forming mold cavity, so as to cooperate with the lifting mold platform to clamp and position the processing position of the plate.

[0008] According to a preferred embodiment, the telescopic positioning mechanism includes a first hydraulic lifting column and a flush pressure plate, wherein the axial upper end of the first hydraulic lifting column is connected to the bottom surface of the first mounting groove, and the axial lower end of the first hydraulic lifting column is connected to the flush pressure plate to adjustably limit the flush pressure plate to block the groove opening of the first mounting groove.

[0009] According to a preferred embodiment, a second mounting groove is provided on the upper end surface of the static mold, and a lifting mold platform that can be raised and lowered is arranged in the second mounting groove, a transverse groove is provided on the groove side wall of the second mounting groove, and a telescopic supporting table is connected in the transverse groove through a horizontal positioning spring; a positioning frame is also provided on the upper end surface of the static mold.

[0010] According to a preferred embodiment, the lifting die table includes a second hydraulic lifting column installed on the bottom surface of the inner groove of the second mounting groove and a die table arranged at the axial upper end of the second hydraulic lifting column, and the inner die body is constructed in a manner to define the inner cavity contour of the shell workpiece, and the inner die body can be lifted and moved under the drive of the second hydraulic lifting column to push the telescopic support table plate to retract into the transverse groove, thereby pressing the plate into the forming cavity defined by the movable die, and the lifting die table synchronously cooperates with the movable die docked on the upper end surface of the static die to construct a stamping cavity.

[0011] According to a preferred embodiment, the suction and release assembly includes a suction and release joint, a telescopic tube, a ring tube, a connecting tube, a negative pressure exhaust unit and a blowing pump, wherein the suction joint is inserted into the flush pressure plate in a circumferentially spaced manner; the axial upper ends of several of the suction joints are connected to the ring tube built into the movable mold through the telescopic tube; the ring tube is respectively connected to the negative pressure exhaust unit and the blowing pump arranged on the upper end surface of the movable mold through the connecting tubes symmetrically distributed on both sides thereof.

[0012] According to a preferred embodiment, the supporting mechanism includes a main lifting column, a top plate and an auxiliary lifting column, wherein the main lifting column is supported on the base in a manner such that the height of the top plate can be adjusted, and the lower surface of the top plate is connected to the upper end surface of the movable mold through the auxiliary lifting column.

[0013] According to a preferred embodiment, the pre-processing component includes a conveying mechanism and a double-roller coating mechanism, wherein the conveying mechanism and the double-roller coating mechanism are sequentially arranged on one side of the static mold; the double-roller coating mechanism has two parallel coating rollers installed by a support frame, and the coating rollers are transmission-connected to a drive motor arranged on the support frame.

[0014] According to a preferred embodiment, a positioning groove matching the positioning frame is further provided on the lower end surface of the movable mold.

[0015] According to a preferred embodiment, a plurality of through holes for accommodating the suction and release joints are circumferentially spaced apart on the flush pressing plate.

[0016] The beneficial effects of the utility model are:

[0017] The lifting die table provided in the present application can cooperate with the telescopic positioning mechanism to clamp and position the plate to avoid the plate from being offset during the process of stamping into the shell, so as to ensure that the stamped shell workpiece has high dimensional accuracy and consistency. The combined clamping of the lifting die table and the telescopic positioning mechanism can assist the static mold frame to limit the position, thereby ensuring the stability of the plate clamping and limiting. In addition, the lifting die table penetrates into the moving die by continuously rising, so as to force the plate to be pressed into the moving die in a way that limits the inner cavity wall contour of the shell to form the shell workpiece, and because the telescopic positioning mechanism can use the suction and release assembly to position the plate by negative pressure adsorption, it is convenient for the shell workpiece to separate from the shell workpiece during the descending movement of the lifting die table after forming. The problem of adhesion between the shell workpiece and the lifting die table is effectively solved. In addition, the present application also applies lubricating oil to the surface of the plate by pre-processing components to reduce the roughness of its surface during the deformation of the plate, so that it can more effectively form the shell workpiece under pressure, and avoid excessive friction that causes defects such as wear on the shell surface after forming. In addition, after completing the adsorption and positioning work, the suction and release assembly of the present application can blow and clean the surface of the static mold and the mold cavity of the dynamic mold from which the shell workpiece is removed, thereby improving the cleanliness of the mold cavity and the butt joint surface, so that the plate can be punched more smoothly to form a shell workpiece with high integrity. When the position of the shell is limited by negative pressure adsorption, the suction and release assembly can release the adsorption effect under the control of the operator, thereby realizing convenient removal of the shell workpiece, improving the convenience of removing the shell workpiece, and avoiding the operational defects of the prior art of separating the mold shell by pushing the shell workpiece, reducing the wear of the shell workpiece, and improving the efficiency and quality of removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a preferred capacitor aluminum shell stamping fixture proposed by the utility model;

[0019] Figure 2 It is a structural schematic diagram of a preferred capacitor aluminum shell stamping fixture proposed by the utility model when the dynamic and static dies are butted;

[0020] Figure 3 It is a partial plan view of a static die of a preferred capacitor aluminum shell stamping fixture proposed by the utility model;

[0021] Figure 4 It is a bottom view of a movable die of a preferred capacitor aluminum shell stamping fixture proposed by the utility model.

[0022] Reference numerals list

[0023] 1: base; 2: supporting mechanism; 3: moving mold; 4: static mold; 5: telescopic positioning mechanism; 6: lifting mold table; 7: suction and release assembly; 8: pre-processing assembly; 21: main lifting column; 22: top plate; 23: auxiliary lifting column; 31: forming mold cavity; 32: first installation slot; 33: positioning slot; 41: second installation slot; 42: horizontal slot; 43: positioning spring; 44: telescopic support table; 45: positioning frame; 51: first hydraulic lifting column; 52: flush pressure plate; 61: second hydraulic lifting column; 62: inner mold body; 71: suction and release joint; 72: telescopic tube; 73: ring tube; 74: connecting tube; 75: negative pressure exhaust unit; 76: blowing pump; 81: transmission mechanism; 82: double-roller coating mechanism; 521: through hole; 821: support frame; 822: coating roller; 823: driving motor. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] The technical solution provided by the present invention will be described in detail below by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is used to help understand the present invention, but does not constitute a limitation of the present invention. In some examples, some implementation methods are not described or are not described in detail because they belong to existing or conventional technologies.

[0026] In addition, the technical features recorded in this article, or the steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequence of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only for illustrative purposes and does not imply a requirement to follow a certain order unless it is explicitly stated that a certain order is required.

[0027] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, under reasonable circumstances (not constituting a self-contradiction), include direct and indirect connections (couplings).

[0028] The following is a detailed description with reference to the accompanying drawings.

[0029] Example 1

[0030] The present application provides a capacitor aluminum shell stamping fixture, which includes a base 1, a supporting mechanism 2, a movable mold 3, a static mold 4, a telescopic positioning mechanism 5, a lifting mold table 6, a suction and release component 7 and a pre-processing component 8.

[0031] according to Figure 1-4 In a specific embodiment shown, the support mechanism 2 is supported on the base 1 in a manner that limits the working position of the movable mold 3. A static mold 4 installed on the base 1 is arranged below the movable mold 3. The movable mold 3 can move downward under the drive of the support mechanism 2 and cooperate with the static mold 4 to construct a stamping cavity to stamp the plate placed on the static mold 4 into a shell workpiece. A telescopic positioning mechanism 5 is arranged in the movable mold 3, which can cooperate with the lifting mold table 6 embedded in the static mold 4 to clamp and position the processing position of the plate. A suction and release component 7 that can adjustably adsorb the plate or output a purge airflow is also embedded in the telescopic positioning mechanism 5. A pre-processing component 8 for surface treatment of the plate is also arranged on one side of the static mold 4. The lifting mold table 6 provided in the present application can cooperate with the telescopic positioning mechanism 5 to clamp and position the plate to avoid the plate from being offset during the process of stamping into a shell, so as to ensure that the stamped shell workpiece has high dimensional accuracy and consistency. The combined clamping of the lifting mold table 6 and the telescopic positioning mechanism 5 can assist the static mold 4 frame limit, thereby ensuring the stability of the plate clamping limit. And the lifting die table 6 goes deep into the movable die 3 by continuously rising, so as to force the plate to be pressed into the movable die 3 in a way that limits the inner cavity wall contour of the shell to form a shell workpiece, and because the telescopic positioning mechanism 5 can use the suction and release assembly 7 to perform negative pressure adsorption positioning on the plate, it is convenient for the shell workpiece to separate the shell mold between it and the shell workpiece during the downward movement of the lifting die table 6 after forming. The problem of adhesion between the shell workpiece and the lifting die table 6 is effectively solved. And the application also applies lubricating oil to the surface of the plate by pre-processing assembly 8 to reduce the roughness of its surface during the deformation of the plate, so that it can more effectively form the shell workpiece under pressure, and avoid excessive friction that causes defects such as wear on the shell surface after forming. In addition, after completing the adsorption and positioning work, the suction and release assembly 7 of the application can blow and clean the surface of the static mold 4 that removes the shell workpiece and the mold cavity of the movable mold 3, thereby improving the cleanliness of the mold cavity and the docking surface, so that the plate can be more smoothly stamped to form a shell workpiece with high integrity. When the position of the shell is limited by negative pressure adsorption, the suction and release component 7 can release the adsorption effect under the control of the operator, thereby realizing the convenient removal of the shell workpiece, improving the convenience of removing the shell workpiece, and avoiding the operational defects of the prior art of separating the mold shell by pushing the shell workpiece, reducing the wear of the shell workpiece, and improving the efficiency and quality of removal.

[0032] Preferably, the support mechanism 2 includes a main lifting column 21, a top plate 22 and an auxiliary lifting column 23. Preferably, the main lifting column 21 is supported on the base 1 in a manner that the height of the top plate 22 can be adjusted. Further preferably, the lower surface of the top plate 22 is connected to the upper end surface of the movable mold 3 through the auxiliary lifting column 23. The present application adjusts the suspension height of the movable mold 3 in coordination by setting the main lifting column 21 and the auxiliary lifting column 23, so that the position change accuracy thereof is higher.

[0033] Preferably, a forming cavity 31 for accommodating the lifting die table 6 is provided on the lower end surface of the movable mold 3. Preferably, a first mounting groove 32 for accommodating the telescopic positioning mechanism 5 is provided at the bottom of the chamber of the forming cavity 31 with an opening facing downward. Specifically, the telescopic positioning mechanism 5 can be adjusted to extend from the first mounting groove 32 to the forming cavity 31, so as to clamp and position the processing position of the plate in cooperation with the lifting die table 6. Preferably, a positioning groove 33 matching the positioning frame 45 is also provided on the lower end surface of the movable mold 3. The movable mold 3 provided in the present application can cooperate with the static mold 4 to define the edge contour of the shell, and the two can form a closed inner cavity in a docking manner.

[0034] Preferably, a second mounting groove 41 is provided on the upper end surface of the static mold 4. Preferably, a lifting mold platform 6 that can be lifted and lowered is arranged in the second mounting groove 41. Preferably, a transverse groove 42 is provided on the groove side wall of the second mounting groove 41. Preferably, a telescopic support plate 44 is connected to the transverse groove 42 through a transverse positioning spring 43. Preferably, a positioning frame 45 is also provided on the upper end surface of the static mold 4. The static mold 4 can limit the movement direction of the lifting mold platform 6, and cooperate with the lifting mold platform 6 to construct a lower mold body shape that defines the complete contour of the inner wall of the shell cavity and the edge contour of the shell workpiece. The telescopic support plate 44 and the positioning frame 45 provided in the present application cooperate with each other to support and limit the installation position of the plate, and the telescopic support plate 44 can be squeezed by the lifting mold platform 6 during the rising process and retract into the transverse groove 42 to achieve its adjustable support effect, and fill at least part of the gap on the edge of the lifting mold platform 6 in the early stage of stamping to ensure the effectiveness of the support for the plate.

[0035] Preferably, the telescopic positioning mechanism 5 includes a first hydraulic lifting column 51 and a flushing plate 52. Preferably, the axial upper end of the first hydraulic lifting column 51 is connected to the bottom surface of the first mounting groove 32. Preferably, the axial lower end of the first hydraulic lifting column 51 is connected to the flushing plate 52 to adjustably limit the flushing plate 52 to block the notch of the first mounting groove 32. Further preferably, a plurality of through holes 521 for accommodating the suction and release joints 71 are circumferentially spaced on the flushing plate 52. The flushing plate 52 provided in the present application can be lowered and attached to the upper surface of the plate, so that it can cooperate with the telescopic support table 44 or the lifting die table 6 to locate the processing position of the plate, so as to ensure that the plate is always limited to a center point in the subsequent stamping process to maintain a stable state without deviation, so as to ensure the regular shape of the shell after forming.

[0036] Preferably, the lifting die table 6 includes a second hydraulic lifting column 61 installed on the bottom surface of the inner groove of the second installation groove 41 and an inner die body 62 arranged at the axial upper end of the second hydraulic lifting column 61. Further preferably, the inner die body 62 is constructed in a manner to define the inner cavity contour of the shell workpiece. Specifically, the inner die body 62 can be lifted under the drive of the second hydraulic lifting column 61 to push the telescopic support plate 44 back into the transverse groove 42, thereby pressing the plate into the forming cavity 31 defined by the movable die 3, and the lifting die table 6 synchronously cooperates with the movable die 3 docked on the upper end surface of the static die 4 to construct a stamping cavity. The lifting die table 6 provided in the present application can cooperate with the adsorption joint 71 and the flushing plate 52 to define the position of the plate, and synchronously drive the plate to move to complete the stamping process. And under the negative pressure adsorption force provided by the adsorption joint 71, it can be separated from the formed shell workpiece more conveniently and effectively, avoiding the defects of the top separation step and the waste of process flow.

[0037] Preferably, the suction and release assembly 7 includes a suction and release joint 71, a telescopic tube 72, an annular tube 73, a connecting tube 74, a negative pressure air extraction unit 75 and an air pump 76. Preferably, the suction joint 71 is inserted on the flush pressing plate 52 in a circumferentially spaced arrangement. Preferably, the axial upper ends of several suction joints 71 are connected to the annular tube 73 built into the movable mold 3 through the telescopic tube 72. Preferably, the annular tube 73 is respectively connected to the negative pressure air extraction unit 75 and the air pump 76 arranged on the upper end surface of the movable mold 3 through the connecting tubes 74 symmetrically distributed on both sides thereof. Preferably, the telescopic tube 72 can be extended or shortened synchronously with the change in the length of the first hydraulic lifting column 51, so as to ensure the connection between the suction and release joint 71 and the annular tube 73. Preferably, an electromagnetic switch valve is provided in the connecting tube 74 so that the negative pressure air extraction unit 75 or the air pump 76 can be selectively connected to the annular tube 73. The electromagnetic switch valve provided in the present application can limit the conduction state in which only the negative pressure vacuum unit 75 or the blowing pump 76 is connected to the ring tube 73, so that the suction and release component 7 can achieve negative pressure adsorption or blowing cleaning under different working conditions.

[0038] Preferably, the pre-processing assembly 8 includes a conveying mechanism 81 and a double-roller coating mechanism 82. Preferably, the conveying mechanism 81 and the double-roller coating mechanism 82 are sequentially arranged on one side of the static mold 4, so that the transmission mechanism 81 can convey the plate treated by the double-sided coating by the double-roller coating mechanism 82 to the upper end surface of the static mold 4. Further preferably, the double-roller coating mechanism 82 is limitedly installed with two parallel coating rollers 822 through a support frame 821, so that a gap for the plate to pass through is defined between the two coating rollers 822. Further preferably, the coating roller 822 is transmission-connected to a driving motor 823 arranged on the support frame 821. The two coating rollers 822 of the present application are respectively pressed against the upper and lower surfaces of the plate, so that when the coating roller 822 at the lower end is driven to rotate, it can drive the plate to translate synchronously, and the coating roller 822 at the upper end can also rotate synchronously following the translation of the plate, so that the lubricating liquid wrapped on the surface of the two coating rollers 822 can be effectively coated on the surface of the plate. Preferably, the roller surface of the coating roller 822 is wrapped with a lubricant adsorption layer, so that sufficient lubricant is added to its surface by artificial addition before working, and the lubricant contained in the surface of the coating roller 822 is increased by secondary addition after working for a certain period of time. The conveying mechanism 81 provided in the present application can transfer the plate after the surface pretreatment coating to the static mold 4. At this time, the operator manually adjusts the position of the plate to accurately clamp the plate into the positioning frame 45.

[0039] The working principle of this application is:

[0040] The plate is placed between the two coating rollers 822 of the double-roll coating mechanism 82, so that the plate is coated with lubricating oil following the rotation of the coating rollers 822; the plate that has completed the coating pretreatment is further conveyed to the upper end surface of the static mold 4 by the conveying mechanism 81, and the position of the plate on the static mold 4 is manually adjusted so that the plate is accurately stuck in the positioning frame 45. The movable mold 3 is driven by the support mechanism 2 to descend and dock with the static mold 4; the first hydraulic lifting column 51 controls the flushing plate 52 to descend and attach to the upper surface of the plate; the inner mold body 62 is driven by the second hydraulic lifting column 61 to rise and abut against the lower surface of the plate body, so that the flushing plate 52 and the inner mold body 62 cooperate with each other to clamp the position of the positioning plate. In addition, when the flushing plate 52 is attached to the upper surface of the plate, the suction and release joint 71 of the suction and release assembly 7 is connected with the negative pressure exhaust unit 75 to generate a negative pressure adsorption force, thereby improving the stability and effectiveness of the plate positioning. The inner mold body 62 and the flushing plate 52 are synchronously lifted under the drive of the second hydraulic lifting column 61 and the first hydraulic lifting column 51, so that the plate is gradually pressed into the forming cavity 31, and in the process of rising, it is gradually fitted to the inner wall contour of the forming cavity 31 by the restriction of the outer contour of the inner mold body 62, thereby realizing the forming of the shell workpiece. After the stamping of the shell workpiece is completed, the inner mold body 62 and the flushing plate 52 are synchronously lowered under the drive of the second hydraulic lifting column 61 and the first hydraulic lifting column 51, respectively, and the lowering distance is less than the height of the shell workpiece, so as to realize the separation of the shell workpiece from the forming cavity 31, and then the inner mold body 62 is driven by the second hydraulic lifting column 61 to descend alone, and the shell workpiece is always attached to the lower plate surface of the flushing plate 52 under the negative pressure adsorption of the suction and release joint 71, thereby realizing the separation of the shell workpiece from the inner mold body 62. The connection between the suction and release joint 71 and the negative pressure exhaust unit 75 is disconnected, thereby separating the shell workpiece from the flushing plate 52. Finally, the suction and release joint 71 is connected to the blowing pump 76 so that the blowing pump 76 can deliver a cleaning airflow in a directional manner when powered on, thereby blowing and cleaning the forming cavity 31, the upper end surface of the static mold 4 and the surface of the lifting mold platform 6.

[0041] The present utility model is not limited to the above optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope of the claims of the present utility model fall within the protection scope of the present utility model. Those skilled in the art should understand that the present utility model specification and its drawings are illustrative and do not constitute limitations on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A capacitor aluminum shell stamping fixture, comprising a base (1), characterized in that: The support mechanism (2) is supported on the base (1) in a manner of defining a working position of the movable die (3); a static die (4) mounted on the base (1) is provided below the movable die (3); the movable die (3) can move downward under the drive of the support mechanism (2) and cooperate with the static die (4) to form a stamping cavity, so as to stamp a plate placed on the static die (4) into a shell workpiece; A telescopic positioning mechanism (5) is provided in the movable mold (3) and can cooperate with a lifting mold platform (6) embedded in the static mold (4) to clamp and position the processing position of the plate. A suction and release component (7) capable of adjustably adsorbing the plate or outputting a purge airflow is also embedded in the telescopic positioning mechanism (5). A pre-processing component (8) for performing surface treatment on the plate is also provided on one side of the static mold (4).

2. The capacitor aluminum shell stamping fixture according to claim 1, characterized in that: A forming mold cavity (31) for accommodating the lifting mold platform (6) is provided on the lower end surface of the movable mold (3). A first mounting groove (32) for accommodating the telescopic positioning mechanism (5) is provided at the bottom of the downwardly opening forming cavity (31); the telescopic positioning mechanism (5) can be adjusted to extend from the first mounting groove (32) to the forming cavity (31), thereby cooperating with the lifting die table (6) to clamp and position the processing position of the plate.

3. The capacitor aluminum shell stamping fixture according to claim 2, characterized in that: The telescopic positioning mechanism (5) comprises a first hydraulic lifting column (51) and a flush pressing plate (52), wherein: The axial upper end of the first hydraulic lifting column (51) is connected to the bottom surface of the first installation groove (32), and the axial lower end of the first hydraulic lifting column (51) is connected to the flush pressing plate (52) so as to adjustably limit the flush pressing plate (52) to block the notch of the first installation groove (32).

4. The capacitor aluminum shell stamping fixture according to claim 3, characterized in that: The upper end surface of the static mold (4) is provided with a second mounting groove (41), and the lifting mold platform (6) that can be lifted and lowered is arranged in the second mounting groove (41), and a transverse groove (42) is provided on the groove side wall of the second mounting groove (41), and a telescopic support plate (44) is connected in the transverse groove (42) via a transverse positioning spring (43); The upper end surface of the static mold (4) is also provided with a positioning frame (45).

5. The capacitor aluminum shell stamping fixture according to claim 4, characterized in that: The lifting die table (6) comprises a second hydraulic lifting column (61) mounted on the bottom surface of the inner groove of the second mounting groove (41) and an inner die body (62) arranged at the axial upper end of the second hydraulic lifting column (61), wherein the inner die body (62) is constructed in a manner to define the inner cavity contour of the shell workpiece. The inner mold body (62) can be lifted up under the drive of the second hydraulic lifting column (61) to push the telescopic support table (44) back into the transverse groove (42), thereby pressing the plate into the forming cavity (31) defined by the movable mold (3), and the lifting mold table (6) synchronously cooperates with the movable mold (3) docked on the upper end surface of the static mold (4) to construct a stamping cavity.

6. The capacitor aluminum shell stamping fixture according to claim 5, characterized in that: The suction and release assembly (7) comprises a suction and release joint (71), a telescopic tube (72), a ring tube (73), a connecting tube (74), a negative pressure suction unit (75) and an air pump (76), wherein: The suction and release joints (71) are inserted on the flush pressing plate (52) in a circumferentially spaced arrangement; The axial upper ends of the plurality of suction and release joints (71) are connected to the annular tube (73) built into the movable mold (3) through the telescopic tube (72); The annular tube (73) is connected to the negative pressure air extraction unit (75) and the air blowing pump (76) respectively arranged on the upper end surface of the movable mold (3) through the connecting tubes (74) symmetrically distributed on both sides thereof.

7. The capacitor aluminum shell stamping fixture according to claim 6, characterized in that: The support mechanism (2) comprises a main lifting column (21), a top plate (22) and an auxiliary lifting column (23), wherein: The main lifting column (21) is supported on the base (1) in a manner such that the height of the top plate (22) can be adjusted, and the lower surface of the top plate (22) is connected to the upper end surface of the movable mold (3) through the auxiliary lifting column (23).

8. The capacitor aluminum shell stamping fixture according to claim 7, characterized in that: The pre-processing assembly (8) comprises a conveying mechanism (81) and a double-roll coating mechanism (82), wherein: The conveying mechanism (81) and the double-roller coating mechanism (82) are sequentially arranged on one side of the stationary mold (4); The double-roller coating mechanism (82) has two parallel coating rollers (822) mounted in a limited manner via a support frame (821). Furthermore, the coating roller (822) is drivingly connected to a driving motor (823) disposed on the supporting frame (821).

9. The capacitor aluminum shell stamping fixture according to claim 8, characterized in that: A positioning groove (33) matching the positioning frame (45) is also provided on the lower end surface of the movable mold (3).

10. The capacitor aluminum shell stamping fixture according to claim 9, characterized in that: A plurality of through holes (521) for accommodating the suction and release joints (71) are provided at intervals in an annular direction on the flush pressing plate (52).

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