Processing fixture for battery replacement box and processing method for battery replacement box

Abstract

The present invention discloses a processing fixture for a battery swap box, and discloses a processing method for a battery swap box using the processing fixture for a battery swap box, wherein the processing fixture for the battery swap box includes a base, a lifting platform, a positioning mechanism, a locking mechanism, and a clamping mechanism; the lifting platform is movably arranged on the base, and the lifting platform is connected with the lifting mechanism; the positioning mechanism is arranged on the base, and the positioning mechanism includes a reference end located above the lifting platform; the locking mechanism is arranged on the base, and the locking mechanism can cooperate with the reference end to fix the lifting platform; the clamping mechanism can clamp the workpiece on the lifting platform. By driving the lifting platform to rise through the lifting mechanism, the upper surface of the workpiece away from the base can be brought into contact with the reference end, so that the clamping reference surface of the fixture to the workpiece becomes the upper surface of the workpiece away from the base, thereby increasing the consistency of the reference surface.

Description

Technical Field

[0001] The present invention relates to the field of electric vehicles, and in particular to a processing fixture for a battery-swap box and a processing method for the battery-swap box. Background Art

[0002] As we all know, when the existing non-fast-swap power battery box is CNC machined, the fixture supports the bottom surface of the workpiece through its base, and then the machine tool processes the workpiece. This traditional CNC clamping process easily causes the clamping reference during clamping to be inconsistent with the actual quick-swap box assembly reference, and the inconsistency between the actual clamping reference surface and the processing process reference will cause tolerance accumulation problems, which will cause a high probability of loosening, deformation and abnormal noise in the fast-swap power battery after fast-swap. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a processing fixture for a battery exchange box body, which can make the clamping reference and the processing base as uniform as possible.

[0004] According to the first aspect of the present invention, the processing fixture of the battery exchange box body includes: a base, a lifting platform, a positioning mechanism, a locking mechanism and a clamping mechanism; the lifting platform is movably arranged on the base, and the lifting platform is connected to the lifting mechanism; the positioning mechanism is arranged on the base, and the positioning mechanism includes a reference end located above the lifting platform; the locking mechanism is arranged on the base, and the locking mechanism can cooperate with the reference end to fix the lifting platform; the clamping mechanism can clamp the workpiece on the lifting platform.

[0005] The processing fixture of the battery exchange box according to the embodiment of the present invention has at least the following beneficial effects: the lifting platform is driven to rise by the lifting mechanism, so that the upper surface of the workpiece away from the base can be brought into contact with the reference end, so that the clamping reference surface of the fixture on the workpiece becomes the upper surface of the workpiece away from the base, so that when the workpiece is processed, the machine tool can avoid the interference caused by the base when selecting the processing reference plane, and select the processing reference surface as the upper surface of the workpiece that is the same as the clamping reference surface, thereby ensuring the consistency of the reference surface during the rapid replacement of the battery box processing, and effectively alleviating or avoiding the tolerance accumulation problem caused by the profile tolerance of the workpiece itself and the welding tolerance of the forgings generated during forging at various locations, thereby effectively solving the problem of inconsistent battery exchange contour caused by tolerance accumulation in the production process, and further solving the failure, loosening, deformation, cracking, falling off, abnormal noise and other faults of the quick-change bolts caused by inconsistent reference surfaces of the power battery after rapid battery replacement.

[0006] According to some embodiments of the present invention, the lifting mechanism includes a lifting cylinder, which is installed on the base and connected to the lifting platform.

[0007] According to some embodiments of the present invention, a guide mechanism is provided between the base and the lifting platform, and the base and the lifting platform are connected via the guide mechanism.

[0008] According to some embodiments of the present invention, the positioning mechanism includes a positioning cylinder connected to a positioning block; the positioning cylinder can drive the positioning block to move closer to or away from the lifting path of the workpiece, and the reference end is arranged at the lower part of the positioning block.

[0009] According to some embodiments of the present invention, a supporting frame is fixedly connected to the base, and the positioning cylinder is installed on the supporting frame and supported by the supporting frame to above the lifting platform.

[0010] According to some embodiments of the present invention, the locking mechanism includes a locking cylinder disposed on the base, the locking cylinder is connected to a locking block, and the locking cylinder can drive the locking block to move to the bottom of the lifting platform and abut against the lower part of the lifting platform.

[0011] According to some embodiments of the present invention, a support frame is provided on the base, the support frame is located below the lifting platform and can support the lifting platform; the positioning mechanism and the locking cylinder are both configured on the support frame, and the positioning mechanism is located above the locking cylinder.

[0012] According to some embodiments of the present invention, the clamping mechanism includes a plurality of clamping cylinders disposed on the lifting platform, and the plurality of clamping cylinders can clamp and fix the workpiece from multiple locations of the workpiece respectively.

[0013] According to the processing method of the battery exchange box body of the second embodiment of the present invention, the processing fixture of the battery exchange box body of the first embodiment of the present invention is used, and the following steps are included: clamping, the clamping mechanism is started and the workpiece is clamped and fixed on the lifting platform;

[0014] Positioning, the lifting mechanism drives the lifting platform to rise so that the upper surface of the workpiece abuts against the reference end;

[0015] Locking, the locking mechanism fixes the lifting platform and the base relative to each other;

[0016] Processing, the machine tool processes the workpiece on the lifting platform;

[0017] Unlocking, the locking mechanism unlocks the lifting platform;

[0018] Resetting, the lifting mechanism drives the lifting platform to descend so that the workpiece is reset;

[0019] When released, the clamping mechanism releases the lock on the workpiece.

[0020] The processing method of the battery exchange box according to the embodiment of the present invention has at least the following beneficial effects: the lifting platform is driven to rise by the lifting mechanism, so that the upper surface of the workpiece away from the base can be brought into contact with the reference end, so that the clamping reference surface of the fixture on the workpiece becomes the upper surface of the workpiece away from the base, so that when the workpiece is processed, the machine tool can avoid the interference caused by the base when selecting the processing reference plane, and select the processing reference surface as the upper surface of the workpiece that is the same as the clamping reference surface, thereby ensuring the consistency of the reference surface during the rapid replacement of the battery box processing, and effectively alleviating or avoiding the tolerance accumulation problem caused by the profile tolerance of the workpiece itself and the welding tolerance of the forgings generated during forging at various locations, thereby effectively solving the problem of inconsistent battery exchange contour caused by tolerance accumulation in the production process, and further solving the failure, loosening, deformation, cracking, falling off, abnormal noise and other faults of the quick-change bolts caused by inconsistent reference surfaces of the power battery after rapid battery replacement.

[0021] According to the processing method of the battery exchange box body of the third embodiment of the present invention, the processing fixture of the battery exchange box body of the first embodiment of the present invention is used, and the following steps are included: clamping, the clamping mechanism is started and the workpiece is clamped and fixed on the lifting platform;

[0022] Clamping: the clamping mechanism is activated and the workpiece is clamped and fixed on the lifting platform;

[0023] Positioning, the positioning cylinder drives the positioning block to extend above the workpiece, and the lifting mechanism drives the lifting platform to rise so that the upper surface of the workpiece abuts against the lower surface of the positioning block;

[0024] Locking, the locking mechanism fixes the lifting platform and the base relative to each other;

[0025] Processing, the machine tool processes the workpiece on the lifting platform;

[0026] Unlocking, the locking mechanism unlocks the lifting platform;

[0027] Reset, the positioning cylinder drives the positioning block to reset, and the lifting mechanism drives the lifting platform to descend to reset the workpiece;

[0028] When released, the clamping mechanism releases the lock on the workpiece.

[0029] The processing method of the battery exchange box according to the embodiment of the present invention has at least the following beneficial effects: after the positioning cylinder extends the positioning block, the lifting platform is driven to rise by the lifting mechanism, so that the upper surface of the workpiece away from the base can be abutted against the lower surface of the positioning block, so that the clamping reference surface of the fixture on the workpiece is changed to the upper surface of the workpiece away from the base, so that when the workpiece is processed, the machine tool can avoid the interference caused by the base when selecting the processing reference plane, and select the processing reference surface as the upper surface of the workpiece that is the same as the clamping reference surface, thereby ensuring the consistency of the reference surface during the rapid replacement of the battery box processing, and effectively alleviating or avoiding the tolerance accumulation problem caused by the profile tolerance of the workpiece itself and the welding tolerance of the forgings generated during forging at various locations, thereby effectively solving the problem of inconsistent battery replacement contour caused by tolerance accumulation in the production process, and then solving the failure, loosening, deformation, cracking, falling off, abnormal noise and other faults of the quick-change bolts caused by inconsistent reference surfaces of the power battery after rapid battery replacement.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 A schematic diagram of a processing fixture for a battery-swapping box according to an embodiment of the present invention;

[0033] Figure 2 for Figure 1 An enlarged schematic diagram of A is shown;

[0034] Figure 3 for Figure 1 An enlarged schematic diagram of B is shown;

[0035] Figure 4 for Figure 1 A schematic diagram of an exploded view of a processing fixture for a battery-swapping box body is shown;

[0036] Figure 5 for Figure 1 A schematic diagram of a cross section of a processing fixture for a battery-swapping box is shown;

[0037] Figure 6 for Figure 1 A schematic diagram of the positioning mechanism of the processing fixture of the battery exchange box is shown.

[0038] Figure numerals: 100 is a base, 120 is a support frame, 140 is a guide mechanism, 150 is a lifting platform, 200 is a positioning mechanism, 210 is a support frame, 230 is a positioning cylinder, 250 is a positioning block, 400 is a clamping mechanism, 410 is a clamping cylinder, 450 is a clamping block, 500 is a lifting mechanism, 600 is a locking mechanism, 610 is a locking cylinder, 630 is a slide rail, 650 is a positioning block, 800 is a control system, 900 is a workpiece, and 950 is a positioning flange. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which 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 invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to 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 invention.

[0041] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] Reference Figure 1A processing fixture for a battery exchange box includes: a base 100, a lifting platform 150, a positioning mechanism 200, a locking mechanism 600 and a clamping mechanism 400; the lifting platform 150 is movably arranged on the base 100, and the lifting platform 150 is connected to the lifting mechanism 500; the positioning mechanism 200 is arranged on the base 100, and the positioning mechanism 200 includes a reference end located above the lifting platform 150; the locking mechanism 600 is arranged on the base 100, and the locking mechanism 600 can cooperate with the reference end to fix the lifting platform 150; the clamping mechanism 400 can clamp the workpiece 900 on the lifting platform 150. By driving the lifting platform 150 to rise through the lifting mechanism 500, the upper surface of the workpiece 900 away from the base 100 can be brought into contact with the reference end, so that the clamping reference surface of the fixture for the workpiece 900 becomes the upper surface of the workpiece 900 away from the base 100, so that when processing the workpiece 900, the machine tool can avoid the interference caused by the base 100 when selecting the processing reference plane, and select the processing reference surface as the upper surface of the workpiece 900 that is the same as the clamping reference surface, thereby ensuring the consistency of the reference surface during the rapid replacement of the electric box body, and effectively alleviating or avoiding the tolerance accumulation problem caused by the profile tolerance of the workpiece 900 itself and the forging welding tolerance generated during forging at various locations, thereby effectively solving the problem of inconsistent battery replacement contour caused by tolerance accumulation during the production process, and further solving the failure, loosening, deformation, cracking, falling off, abnormal noise and other faults of the quick-change bolts caused by inconsistent reference surfaces of the power battery after rapid battery replacement.

[0044] Specifically, a positioning flange 950 is provided on the workpiece 900, and the upper surface of the positioning flange 950 can contact and position with a machining machine. After the lifting platform 150 rises, the reference end can contact and position with the upper surface of the positioning flange 950.

[0045] Furthermore, the positioning mechanism 200 includes a plurality of reference ends. For bolt-connected quick-change power battery cases, in addition to the high requirements for the hole position of the quick-change fastening bolts of the entire vehicle, another dimension with high requirements is the contour at the hanging point of the quick-change fastening bolts, especially the consistency of the contour at the hanging points of the quick-change fastening bolts of the entire battery pack. The positioning flange 950 is the part of the workpiece 900 used for connecting bolts, and the plurality of reference ends can be arranged near the hole position of the quick-change fastening bolts, thereby improving the clamping reference surface of the fixture on the workpiece 900 to be close to the fastening surface of the bolt on the workpiece 900, thereby reducing the impact of the change in the reference surface on the contour of the workpiece 900.

[0046] Furthermore, the specific number of the reference ends may be four, six or eight, and the specific number and position of the reference ends may be based on the proximity of the quick-change fastening bolts, and no limitation is made here.

[0047] Specifically, the processing fixture further includes a control system 800 , and the lifting mechanism 500 , the positioning mechanism 200 , the locking mechanism 600 and the clamping mechanism 400 are all electrically connected to the control system 800 .

[0048] In certain embodiments, reference Figure 5 The lifting mechanism 500 includes a lifting cylinder, which is installed on the base 100 and connected to the lifting platform 150. After the lifting cylinder is started, the lifting platform 150 will be pushed from the base 100, so that the lifting platform 150 can move up and down relative to the base 100, thereby achieving a lifting effect on the workpiece 900, so that the upper surface of the workpiece 900 can be against the reference end.

[0049] Specifically, the force of the lifting cylinder is greater than the total weight of the lifting platform 150 , the clamping mechanism 400 and the workpiece 900 , thereby effectively achieving a driving effect on the lifting platform 150 .

[0050] It is conceivable that the lifting mechanism 500 may also be composed of other components, such as a screw pair not shown in the figure and a motor not shown in the figure, the motor is connected to the lifting platform 150 through the screw pair, and the screw pair can rotate and push the lifting platform 150 to move up and down. Therefore, the specific implementation method can be adjusted accordingly according to actual needs and is not limited here.

[0051] In certain embodiments, reference Figure 3 A guide mechanism 140 is provided between the base 100 and the lifting platform 150, and the base 100 and the lifting platform 150 are connected via the guide mechanism 140. The guide mechanism 140 can guide and limit the relative movement between the base 100 and the lifting platform 150, thereby ensuring that the lifting platform 150 can move along a predetermined trajectory when driving the workpiece 900 to move, thereby enhancing the stability and accuracy of its movement.

[0052] Specifically, the guide mechanism 140 includes a guide sleeve disposed on the lifting platform 150 and a guide column disposed on the base 100 , and the guide sleeve is movably sleeved on the outer circumference of the guide column.

[0053] In certain embodiments, reference Figure 2 and Figure 6The positioning mechanism 200 includes a positioning cylinder 230, and the positioning cylinder 230 is connected to a positioning block 250; the positioning cylinder 230 can drive the positioning block 250 to move closer to or away from the lifting path of the workpiece 900, and the reference end is arranged at the lower part of the positioning block 250. Before the lifting platform 150 rises, the positioning cylinder 230 can drive the positioning block 250 to extend above the lifting platform 150, so that the positioning block 250 can abut and block the rising workpiece 900, thereby effectively achieving the positioning effect on the upper surface of the workpiece 900. In addition, the driving effect of the positioning cylinder 230 on the positioning block 250 can also cause the positioning block 250 to retract before and after the operation, so as to facilitate the placement of the workpiece 900.

[0054] Specifically, there are multiple positioning mechanisms 200 , which surround the workpiece 900 from all sides.

[0055] In certain embodiments, reference Figure 6 The support frame 210 is fixedly connected to the base 100, and the positioning cylinder 230 is installed on the support frame 210 and is supported by the support frame 210 to the top of the lifting platform 150. The support frame 210 supports the positioning cylinder 230, so that the positioning cylinder 230 can be located above the workpiece 900, thereby ensuring that after the positioning cylinder 230 drives the positioning block 250 to extend, the positioning block 250 can abut and block the upper surface of the workpiece 900.

[0056] In certain embodiments, reference Figure 3 and Figure 6 The locking mechanism 600 includes a locking cylinder 610 disposed on the base 100, and the locking cylinder 610 is connected to a clamping block 650. The locking cylinder 610 can drive the clamping block 650 to move to the bottom of the lifting platform 150 and abut against the lower part of the lifting platform 150. After the lifting platform 150 rises, the locking cylinder 610 can drive the clamping block 650 to extend and clamp between the base 100 and the lifting platform 150, thereby clamping the lifting platform 150, thereby effectively preventing the lifting platform 150 from accidentally falling.

[0057] In certain embodiments, reference Figure 4The base 100 is provided with a support frame 120, which is located below the lifting platform 150 and can support the lifting platform 150; the positioning mechanism 200 and the locking cylinder 610 are both arranged on the support frame 120, and the positioning mechanism 200 is located above the locking cylinder 610. The support frame 120 can form a height difference on the base 100, so that the positions of the locking cylinder 610, the lifting platform 150 and the positioning mechanism 200 can be directly arranged above the base 100, and the height of the three can be positioned in the initial state, thereby ensuring that when the lifting platform 150 is raised or lowered, the positioning mechanism 200 and the locking mechanism 600 can respectively position it from the upper and lower parts of the lifting platform 150.

[0058] Specifically, a slide rail 630 is disposed on the support frame 120 , and the positioning block 650 is slidably connected to the slide rail 630 .

[0059] Specifically, a plurality of hollow structures are provided on the support frame 120 , the lifting cylinder is located on the base 100 and passes through the hollow structures, and the locking cylinder 610 and the supporting frame 210 are both located at the edge of the support frame 120 .

[0060] In certain embodiments, reference Figure 4 The clamping mechanism 400 includes a plurality of clamping cylinders 410 disposed on the lifting platform 150, and the plurality of clamping cylinders 410 can clamp and fix the workpiece 900 from multiple positions of the workpiece 900. The plurality of clamping cylinders 410 clamp and fix the workpiece 900, thereby directly and effectively fixing the workpiece 900 relative to the lifting platform 150. Moreover, the clamping effect of the workpiece 900 from different positions can also alleviate or avoid the problem of uneven clamping force, thereby avoiding the phenomenon of movement of the workpiece 900 during clamping.

[0061] Specifically, some of the multiple clamping cylinders 410 are arranged around the workpiece 900, and the workpiece 900 has a plurality of hollow positions. Some of the multiple clamping cylinders 410 are arranged in the hollow positions and clamp the workpiece 900 from the hollow positions.

[0062] It is conceivable that the power that can be realized by the components such as the lifting mechanism 500, the clamping mechanism 400, the locking mechanism 600 and the positioning mechanism 200 includes but is not limited to pneumatic, hydraulic or electromagnetic drive.

[0063] A second aspect of the present invention provides an embodiment of a method for processing a battery swap box, using the above processing fixture for the battery swap box, comprising the following steps:

[0064] Clamping: the clamping mechanism 400 is activated and the workpiece 900 is clamped and fixed on the lifting platform 150;

[0065] Positioning, the lifting mechanism 500 drives the lifting platform 150 to rise so that the upper surface of the workpiece 900 abuts against the reference end;

[0066] Locking: the locking mechanism 600 fixes the lifting platform 150 and the base 100 relatively;

[0067] Processing: the machine tool processes the workpiece 900 on the lifting platform 150;

[0068] Unlocking: the locking mechanism 600 unlocks the lifting platform 150;

[0069] Reset: the lifting mechanism 500 drives the lifting platform 150 to descend so that the workpiece 900 is reset;

[0070] When released, the clamping mechanism 400 releases the lock on the workpiece 900 .

[0071] By driving the lifting platform 150 to rise through the lifting mechanism 500, the upper surface of the workpiece 900 away from the base 100 can be brought into contact with the reference end, so that the clamping reference surface of the fixture for the workpiece 900 becomes the upper surface of the workpiece 900 away from the base 100, so that when processing the workpiece 900, the machine tool can avoid the interference caused by the base 100 when selecting the processing reference plane, and select the processing reference surface as the upper surface of the workpiece 900 that is the same as the clamping reference surface, thereby ensuring the consistency of the reference surface during the rapid replacement of the electric box body, and effectively alleviating or avoiding the tolerance accumulation problem caused by the profile tolerance of the workpiece 900 itself and the forging welding tolerance generated during forging at various locations, thereby effectively solving the problem of inconsistent battery replacement contour caused by tolerance accumulation during the production process, and further solving the failure, loosening, deformation, cracking, falling off, abnormal noise and other faults of the quick-change bolts caused by inconsistent reference surfaces of the power battery after rapid battery replacement.

[0072] It is conceivable that before the locking step, the workpiece 900 needs to be placed on the lifting platform 150 ; and after the releasing step, the workpiece 900 needs to be removed from the lifting platform 150 .

[0073] The third aspect of the present invention provides an embodiment of a method for processing a battery swap box, using the above battery swap box processing fixture, including the following steps: clamping, the clamping mechanism 400 is started and the workpiece 900 is clamped and fixed on the lifting platform 150;

[0074] Clamping: the clamping mechanism 400 is activated and the workpiece 900 is clamped and fixed on the lifting platform 150;

[0075] Positioning: the positioning cylinder 230 drives the positioning block 250 to extend above the workpiece 900, and the lifting mechanism 500 drives the lifting platform 150 to rise so that the upper surface of the workpiece 900 abuts against the lower surface of the positioning block 250;

[0076] Locking: the locking mechanism 600 fixes the lifting platform 150 and the base 100 relatively;

[0077] Processing: the machine tool processes the workpiece 900 on the lifting platform 150;

[0078] Unlocking: the locking mechanism 600 unlocks the lifting platform 150;

[0079] Reset: the positioning cylinder 230 drives the positioning block 250 to reset, and the lifting mechanism 500 drives the lifting platform 150 to descend so that the workpiece 900 is reset;

[0080] When released, the clamping mechanism 400 releases the lock on the workpiece 900 .

[0081] After the positioning cylinder 230 extends the positioning block 250, the lifting platform 150 is driven to rise by the lifting mechanism 500, so that the upper surface of the workpiece 900 away from the base 100 can be against the lower surface of the positioning block 250, so that the clamping reference surface of the fixture for the workpiece 900 becomes the upper surface of the workpiece 900 away from the base 100, so that when processing the workpiece 900, the machine tool can avoid the interference caused by the base 100 when selecting the processing reference plane, and select the processing reference surface as the upper surface of the workpiece 900 that is the same as the clamping reference surface, thereby ensuring the consistency of the reference surface during the rapid replacement of the electric box body, and effectively alleviating or avoiding the tolerance accumulation problem caused by the profile tolerance of the workpiece 900 itself and the forging welding tolerance generated during forging at various locations, thereby effectively solving the problem of inconsistent battery replacement contour caused by tolerance accumulation during the production process, and then solving the failure, loosening, deformation, cracking, falling off, abnormal noise and other faults of the quick-change bolts caused by inconsistent reference surfaces of the power battery after rapid battery replacement.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A processing fixture for a battery-changing box, characterized in that: include: Base(100); A lifting platform (150) is movably disposed on the base (100), and the lifting platform (150) is connected to a lifting mechanism (500); A positioning mechanism (200) is arranged on the base (100), and the positioning mechanism (200) includes a reference end located above the lifting platform (150); a positioning flange (950) is arranged on the workpiece (900), and the positioning flange (950) is a portion of the workpiece (900) used for connecting bolts; The positioning mechanism (200) comprises a positioning cylinder (230), the positioning cylinder (230) being connected to a positioning block (250); the positioning cylinder (230) can drive the positioning block (250) to move closer to or farther from a lifting path of the workpiece (900); the reference ends are multiple and are all arranged at the bottom of the positioning block (250); the multiple reference ends are arranged near the hole position of the quick-change fastening bolt; A locking mechanism (600) is disposed on the base (100), and the locking mechanism (600) can cooperate with the reference end to fix the lifting platform (150); A clamping mechanism (400) capable of clamping a workpiece (900) on the lifting platform (150); The locking mechanism (600) comprises a locking cylinder (610) disposed on the base (100), the locking cylinder (610) being connected to a locking block (650), and the locking cylinder (610) being capable of driving the locking block (650) to move to the bottom of the lifting platform (150) and to abut against the lower part of the lifting platform (150).

2. The processing fixture for the battery replacement box according to claim 1, characterized in that: The lifting mechanism (500) comprises a lifting cylinder, which is mounted on the base (100) and connected to the lifting platform (150).

3. The processing fixture for the battery replacement box according to claim 2, characterized in that: A guide mechanism (140) is provided between the base (100) and the lifting platform (150), and the base (100) and the lifting platform (150) are connected via the guide mechanism (140).

4. The processing fixture for the battery-changing box according to claim 1, characterized in that: A supporting frame (210) is fixedly connected to the base (100), and the positioning cylinder (230) is installed on the supporting frame (210) and is supported by the supporting frame (210) to above the lifting platform (150).

5. The processing fixture for the battery replacement box according to claim 1, characterized in that: A support frame (120) is provided on the base (100), and the support frame (120) is located below the lifting platform (150) and is capable of supporting the lifting platform (150); The positioning mechanism (200) and the locking cylinder (610) are both arranged on the support frame (120), and the positioning mechanism (200) is located above the locking cylinder (610).

6. The processing fixture for the battery replacement box according to claim 1, characterized in that: The clamping mechanism (400) comprises a plurality of clamping cylinders (410) arranged on the lifting platform (150), and the plurality of clamping cylinders (410) can respectively clamp and fix the workpiece (900) from a plurality of locations of the workpiece (900).

7. A method for processing a battery replacement box, characterized in that: Using the processing fixture of the battery replacement box as described in any one of claims 1 to 6, The following steps are involved: Clamping: the clamping mechanism (400) is activated to clamp and fix the workpiece (900) on the lifting platform (150); Positioning, the lifting mechanism (500) drives the lifting platform (150) to rise so that the upper surface of the workpiece (900) abuts against the reference end; Locking, the locking mechanism (600) fixes the lifting platform (150) and the base (100) relative to each other; Processing, the machine tool processes the workpiece (900) on the lifting platform (150); Unlocking, the locking mechanism (600) unlocks the lifting platform (150); Resetting, the lifting mechanism (500) drives the lifting platform (150) to descend so that the workpiece (900) is reset; When released, the clamping mechanism (400) releases the lock on the workpiece (900).

8. A method for processing a battery replacement box, characterized in that: Using the processing fixture of the battery replacement box as claimed in claim 1, The following steps are involved: Clamping: the clamping mechanism (400) is activated to clamp and fix the workpiece (900) on the lifting platform (150); Positioning, the positioning cylinder (230) drives the positioning block (250) to extend above the workpiece (900), and the lifting mechanism (500) drives the lifting platform (150) to rise so that the upper surface of the workpiece (900) abuts against the lower surface of the positioning block (250); Locking, the locking mechanism (600) fixes the lifting platform (150) and the base (100) relative to each other; Processing, the machine tool processes the workpiece (900) on the lifting platform (150); Unlocking, the locking mechanism (600) unlocks the lifting platform (150); Resetting, the positioning cylinder (230) drives the positioning block (250) to reset, and the lifting mechanism (500) drives the lifting platform (150) to descend so that the workpiece (900) is reset; When released, the clamping mechanism (400) releases the lock on the workpiece (900).

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