CN116619143A - Highly flexible combined machine tool for simultaneous processing of the front and back of the battery case - Google Patents

Abstract

The invention relates to a high-flexibility combined machine tool for simultaneously processing the front and back surfaces of a battery shell, which comprises a frame, wherein supporting seats are symmetrically arranged on two sides of the top of the frame, an upper triaxial mechanism is arranged on the supporting seats, a lower triaxial mechanism is arranged on a bottom plate of the frame, a tool magazine is arranged on the frame, a workbench is arranged between the upper triaxial mechanism and the lower triaxial mechanism, a servo conveying mechanism is arranged on the workbench and connected with two clamps, a working area is arranged on the workbench, two ends of the working area are respectively provided with an upper blanking area and a lower blanking area, and the two clamps are respectively arranged in the working area and one of the upper blanking area and the lower blanking area. According to the invention, all the processing of the front and back surfaces of the battery shell is completed through one-time clamping, so that secondary clamping errors are avoided, and the processing precision and stability are high; the upper and lower surfaces of the battery shell are simultaneously machined through the upper triaxial mechanism and the lower triaxial mechanism, so that the machining efficiency is high; each spindle head of the lower triaxial mechanism is provided with a tool magazine, automatic tool changing is achieved, and the flexibility of the equipment is better.

Description

Highly flexible combined machine tool for simultaneous processing of the front and back of the battery case

technical field

The invention relates to the field of processing machine tools, in particular to a highly flexible combined machine tool for simultaneously processing the front and back of a battery case.

Background technique

With the rapid development of new energy vehicles, in recent years, the output of new energy electric vehicles of domestic mainstream automobile manufacturers has continued to grow rapidly. As one of the core components of new energy vehicles, the demand for battery systems has risen sharply. The battery case is one of the main components of the battery system, and its processing quality and stability directly determine the stability and reliability of the battery system.

During production and processing, the battery case needs to be processed according to the drawing requirements of the battery case. The battery case is an aluminum alloy welded part, and both the front and back sides need to be processed. In the traditional processing technology, whether it is a vertical machining center or a horizontal machining center, it is necessary to process one side and one side sequentially. This processing form has the following shortcomings: 1. Low processing efficiency. 2. There is secondary clamping, welding parts two Larger clamping errors will easily lead to unstable product quality, which is not conducive to subsequent assembly and affects assembly quality.

Contents of the invention

The purpose of the present invention is to provide a highly flexible combined machine tool for simultaneous processing of the front and back of the battery case to solve the problems of low processing efficiency and poor quality stability caused by one-time processing of one side of the battery case in the prior art.

The invention provides a highly flexible combined machine tool for simultaneous processing of the front and back of the battery case, which includes a frame, and support seats are symmetrically installed on both sides of the top of the frame, and a three-axis mechanism is installed on the support seats. The lower three-axis mechanism is installed on the bottom plate of the frame, and the upper and lower sides are processed simultaneously through the upper and lower three-axis mechanisms. All the processing contents of the battery case are completed in one clamping, avoiding secondary clamping errors, and improving processing efficiency and processing Stability, the tool magazine is installed on the frame, and each spindle head of the lower three-axis mechanism is equipped with a tool magazine to realize automatic tool change, and the equipment is more flexible. The gap between the upper three-axis mechanism and the lower three-axis mechanism Set up a workbench, on which a servo transmission mechanism is installed, the servo transmission mechanism is connected to two clamps, a work area is set on the workbench, the two ends of the work area are respectively equipped with loading and unloading areas, and the servo transmission mechanism can drive the clamps For reciprocating movement, the two clamps are respectively in the working area and one of the loading and unloading areas.

Further, the upper three-axis mechanism includes an X-axis driving mechanism 1 installed on the support seat, and the two X-axis driving mechanisms 1 are respectively connected to two ends of the beam, and the Y-axis driving mechanism 1 is installed on the side of the beam. The Y-axis drive mechanism 1 is connected to the internal cooling power head 1 through the Z-axis drive mechanism 1, and the tool 1 is installed on the internal cooling power head 1, and the tool 1 is realized through the X-axis drive mechanism 1, the Y-axis drive mechanism 1 and the Z-axis drive mechanism 1. - Movement in X, Y, and Z axes.

Further, the lower three-axis mechanism includes two X-axis driving mechanisms that are symmetrically installed on the bottom plate of the frame, the X-axis driving mechanisms are connected to the Y-axis support, and the Y-axis drive mechanism is installed on the Y-axis support 2. The Y-axis drive mechanism 2 is connected to the internal cooling power head 2 through the Z-axis drive mechanism 2. The tool 2 is installed on the internal cooling power head, and the X-axis drive mechanism 2, the Y-axis drive mechanism 2 and the Z-axis drive mechanism The second is to realize the movement of the second tool on the X-axis, Y-axis and Z-axis.

Further, the first X-axis drive mechanism, the second X-axis drive mechanism, the first Y-axis drive mechanism, the second Y-axis drive mechanism, the first Z-axis drive mechanism, and the second Z-axis drive mechanism all include servo motors, screw rods and slide rails , the servo motor is connected with the screw mandrel and is used to drive the screw mandrel to rotate, and the linear movement in the X-axis, Y-axis and Z-axis directions is realized through the rotation of the screw mandrel, and the slide rail is used for guiding.

Further, the tool magazine includes a motor, a reducer connected to the motor, the reducer is connected to the rotating disk through bearings, the rotating disk is connected to the cutter head, and the tool is installed on the cutter head through a tool holder, and the cutter head A protective cover is set on the periphery of the protective cover, and a tool magazine door is set on the protective cover, driven by a motor, and decelerated by a reducer, driving the rotating disc to rotate, and rotating the designated tool on the tool disc to the position of the tool magazine door, and the tool magazine door is connected A rotary cylinder drives the switch of the tool magazine door. After the tool magazine door is opened, the spindle head of the lower three-axis mechanism moves to the tool magazine position for tool change.

Further, the clamp includes a clamp body, and several stretching pin mechanisms and several hydraulic clamping devices are installed symmetrically on both sides of the clamp body, the stretching pin mechanisms are used for positioning the workpiece, and the hydraulic clamping devices are used for Clamp.

Further, the pin extension mechanism includes a cylinder, the cylinder is fixedly installed on the fixture body, the top output end of the cylinder is equipped with a round ejector pin, the upper end of the round ejector pin is a circular truncated structure, and the tail of the cylinder Screw and mounting bracket one are installed, and proximity switch one is installed on the said mounting bracket one, and said proximity switch one is set up against the screw, and the proximity switch detects the screw, and detects that the expansion and contraction of the cylinder is in place.

Further, the hydraulic clamping device corresponds to the pin extension mechanism one by one, the hydraulic clamping device includes an oil cylinder, the oil cylinder is fixedly installed on the fixture body, the output end of the oil cylinder is connected to a joint, and the joint is passed through a shaft pin The pressing rod is connected by rotation, and the bottom of the front end of the pressing rod is equipped with a pressing block, and a jacking block is arranged directly below the pressing block. Fixedly installed on the fixture body, the middle part of the pressure rod is connected to the hinge through the hinge pin, and the other end of the hinge is connected to the base through the hinge pin, and the oil cylinder is activated to drive the joint upward. Tightly on the top block, the tail of the base is equipped with a screw rod and a second mounting bracket, a sending ring is installed on the screw rod, a proximity switch 2 is installed on the mounting bracket 2, and the proximity switch 2 is arranged facing the signaling ring, The proximity switch detects the sending ring and detects the extension and contraction of the oil cylinder.

The beneficial effect of adopting above-mentioned technical scheme of the present invention is:

The highly flexible combined machine tool of the present invention, which processes the front and back of the battery case at the same time, completes all the processing of the front and back of the battery case through one clamping, avoids secondary clamping errors, and has high machining accuracy and stability; through the upper three-axis mechanism and the lower The three-axis mechanism completes the simultaneous processing of the upper and lower sides of the battery case, with high processing efficiency; each spindle head of the lower three-axis mechanism is equipped with a tool magazine to realize automatic tool change, and the equipment is more flexible; the drilling adopts an inverted structure, which is effective Avoid processing iron chips into the workpiece; adopt the form of two-way mobile worktable with double fixtures, separate the working area from the loading and unloading area, and improve the processing efficiency.

Description of drawings

Figure 1 is an axonometric view of a highly flexible combined machine tool for simultaneous processing of the front and back of the battery case of the present invention;

Fig. 2 is a schematic diagram of the installation positions of the upper three-axis mechanism and the lower three-axis mechanism on the frame of the present invention;

Fig. 3 is a schematic diagram of the upper three-axis mechanism of the present invention;

Fig. 4 is a schematic diagram of the lower three-axis mechanism of the present invention;

Fig. 5 is a schematic diagram of the positional relationship between the lower three-axis mechanism and its corresponding tool magazine in the present invention;

Fig. 6 is a structural schematic diagram of the tool magazine of the present invention;

Fig. 7 is a schematic structural view of the fixture of the present invention;

Fig. 8 is a structural schematic diagram of the pin extension mechanism of the present invention;

Fig. 9 is a schematic structural diagram of the hydraulic clamping device of the present invention;

In the accompanying drawings, the list of parts represented by each label is as follows:

1-frame, 2-support seat,

3-upper three-axis mechanism, 301-X-axis driving mechanism 1, 302-beam, 303-Y-axis driving mechanism 1, 304-Z-axis driving mechanism 1, 305-internal cooling power head 1, 306-tool 1,

4-lower three-axis mechanism, 401-X-axis drive mechanism 2, 402-Y-axis support, 403-Y-axis drive mechanism 2, 404-Z-axis drive mechanism 2, 405-internal cooling power head 2, 406-tool 2,

5-tool magazine, 501-motor, 502-reducer, 503-rotary disc, 504-cutter disc, 505-knife, 506-protective cover, 507-tool magazine door, 508-rotary cylinder,

6 - workbench,

7-fixture, 701-fixture body, 702-pin mechanism, 7021-cylinder, 7022-round top pin, 7023-screw, 7024-installation bracket one, 7025-proximity switch one, 703-hydraulic clamping device, 7031 -Oil cylinder, 7032-joint, 7033-pressure rod, 7034-press block, 7035-hinge, 7036-base, 7037-screw, 7038-installation bracket 2, 7039-sending ring, 7040-proximity switch 2, 704-top piece.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

As shown in Figure 1-2, the highly flexible combined machine tool for simultaneously processing the front and back of the battery case in this embodiment includes a frame 1, and support bases 2 are installed symmetrically on both sides of the top of the frame 1, and on the support base 2 The upper three-axis mechanism 3 is installed, the lower three-axis mechanism 4 is installed on the bottom plate of the frame 1, and the upper and lower sides are processed simultaneously through the upper three-axis mechanism 3 and the lower three-axis mechanism 4, and all the processing of the battery case is completed in one clamping content, to avoid secondary clamping errors, improve processing efficiency and processing stability, a tool magazine 5 is installed on the frame 1, and each spindle head of the lower three-axis mechanism 4 is equipped with a tool magazine 5 to realize automatic tool change, The equipment is more flexible. A workbench 6 is set between the upper three-axis mechanism 3 and the lower three-axis mechanism 4. A servo transmission mechanism (not marked in the figure) is installed on the workbench 6. The servo transmission mechanism connects two Fixture 7, a work area is set on the workbench 6, loading and unloading areas are respectively set at both ends of the work area, the servo transmission mechanism can drive the clamp 7 to reciprocate, and the two clamps 7 are respectively loaded and unloaded in the work area and one of them district. In this embodiment, in the initial state, there are two fixtures 7: fixture A and fixture B. Fixture A is loaded in the loading and unloading area. After the loading is completed, it moves to the working area through the servo transmission mechanism. At this time, fixture B is moved to Loading in another loading area, waiting for the workpiece of fixture A to finish processing in the working area, fixture A resets to the loading and unloading area for unloading and reloading, at this time, fixture B is moved to the working area for processing, and the workpiece of fixture B After the workpiece is processed, it is reset to the loading and unloading area for unloading and loading again, while the fixture A is moved to the processing area, and so on.

Specifically, as shown in FIG. 3 , the upper three-axis mechanism 3 includes an X-axis driving mechanism 1 301 installed on the support base 2, and the two X-axis driving mechanisms 301 are respectively connected to two ends of the beam 302. A Y-axis driving mechanism-303 is installed on the side of the crossbeam 302, and the Y-axis driving mechanism-303 is connected to the internal cooling power head-305 through the Z-axis driving mechanism-304. Shaft drive mechanism 1 301, Y-axis drive mechanism 1 303 and Z-axis drive mechanism 1 304 realize the movement of cutter 1 306 in three directions of X-axis, Y-axis and Z-axis, and cutter 1 306 moves to the designated position of the battery case for The processing of the top surface of the battery case involves only one kind of processing on the top of the battery case, so only one cutter 306 is provided, and the tool magazine 5 is not equipped.

Specifically, as shown in FIG. 4 , the lower three-axis mechanism 4 includes two X-axis driving mechanisms 2 401 symmetrically installed on the bottom plate of the frame 1, and each of the X-axis driving mechanisms 2 401 is connected to the Y-axis Support 402, the Y-axis drive mechanism 2 403 is installed on the Y-axis support 402, the Y-axis drive mechanism 2 403 is connected to the internal cooling power head 2 405 through the Z-axis drive mechanism 2 404, and the internal cooling power head 2 405 is Cutter 2 406 is installed, and the movement of cutter 2 406 in X-axis, Y-axis and Z-axis is realized by X-axis driving mechanism 2 401, Y-axis driving mechanism 2 403 and Z-axis driving mechanism 404, and the lower three-axis mechanism 4 is provided with two A three-axis moving unit is provided with two spindle heads and equipped with two tool magazines 5, and the designated tool 2 406 moves to the designated position of the battery case to process the bottom surface of the battery case.

Specifically, the first X-axis driving mechanism 301, the second X-axis driving mechanism 401, the first Y-axis driving mechanism 303, the second Y-axis driving mechanism 403, the first Z-axis driving mechanism 304, and the second Z-axis driving mechanism 404 all include servo motors , a screw and a slide rail, the servo motor is connected to the screw for driving the screw to rotate, and the linear movement in the directions of the X axis, the Y axis and the Z axis is realized through the rotation of the screw, and the slide rail is used for guiding.

Specifically, as shown in Figures 5-6, the tool magazine 5 includes a motor 501, a speed reducer 502 connected to the motor 501, the speed reducer 502 is connected to a rotating disc 503 through a bearing, and the rotating disc 503 is connected to a cutter head 504 , the tool 505 is installed on the cutter head 504 through a tool holder, a protective cover 506 is arranged on the periphery of the cutter head 504, a knife magazine door 507 is arranged on the protective cover 506, driven by a motor 501, and decelerated by a reducer 502 to drive The rotating disk 503 rotates, and the designated tool 505 on the cutter head 504 is rotated to the position of the knife magazine door 507, and the knife magazine door 507 is connected with a rotary cylinder 508, and the rotary cylinder 508 drives the switch of the knife magazine door 507, and the knife magazine door 507 After opening, the spindle head of the lower three-axis mechanism 4 moves to the tool magazine 5 position for tool change.

Specifically, as shown in FIG. 7 , the fixture 7 includes a fixture body 701, and several stretching pin mechanisms 702 and several hydraulic clamping devices 703 are installed symmetrically on both sides of the fixture body 701. The stretching pin mechanisms 702 are used for clamping the workpiece Positioning, the hydraulic clamping device 703 is used for clamping the workpiece; as shown in Figure 8, the stretching mechanism 702 includes a cylinder 7021, the cylinder 7021 is fixedly installed on the fixture body 701, and the top of the cylinder 7021 outputs The end is installed with a round top pin 7022, and the upper end of the round top pin 7022 is a circular platform structure. The tail of the cylinder 7021 is equipped with a screw 7023 and a mounting bracket 7024, and a proximity switch 7025 is installed on the mounting bracket 7024. The proximity switch 1 7025 is set against the screw 7023, and the proximity switch detects the screw 7023 and detects that the cylinder 7021 is stretched in place; The clamping device 703 includes an oil cylinder 7031, which is fixedly mounted on the fixture body 701, the output end of the oil cylinder 7031 is connected to a joint 7032, and the joint 7032 is rotatably connected to a compression rod 7033 through a pivot pin, and the front end of the compression rod 7033 is A pressing block 7034 is installed at the bottom of the pressing block 7034, and a top block 704 is arranged directly below the pressing block 7034. After the workpiece is positioned by the circular ejector pin 7022 of the pin ejection mechanism, the workpiece is located on the top of the top block 704, and the top block 704 is fixedly installed on the fixture On the main body 701, the middle part of the pressure rod 7033 is connected to the hinge 7035 through the hinge pin, and the other end of the hinge 7035 is connected to the base 7036 through the hinge pin, and the oil cylinder 7031 starts to drive the joint 7032 upward, and according to the principle of leverage, the pressure block 7034 presses down , press the workpiece on the top block 704, install the screw rod 7037 and the second mounting bracket 7038 at the tail of the base 7036, install the sending ring 7039 on the screw rod 7037, install the proximity switch 2 7040 on the second mounting bracket 7038, The proximity switch 2 7040 is set against the sending ring 7039, and the proximity switch detects the sending ring 7039, and detects that the expansion and contraction of the oil cylinder 7031 is in place. Before the workpiece is loaded, the cylinder 7021 is started, and the circular ejector pin 7022 is driven to extend, and the workpiece Loading, the oil cylinder 7031 is started, and the pressing block 7034 is driven to descend and clamp the workpiece, thus completing the loading of the workpiece.

In summary, the highly flexible combined machine tool for simultaneously processing the front and back of the battery case of the present invention completes all the processing of the front and back of the battery case through one clamping, avoids secondary clamping errors, and has high machining accuracy and stability; through the upper three-axis The mechanism and the lower three-axis mechanism complete the simultaneous processing of the upper and lower sides of the battery case, and the processing efficiency is high; each spindle head of the lower three-axis mechanism is equipped with a tool magazine to realize automatic tool change, and the equipment is more flexible; the drilling adopts an inverted type The structure can effectively prevent the processing iron chips from entering the interior of the workpiece; the double-fixture form of the two-way mobile worktable is adopted, and the working area and the loading and unloading area are separated to improve the processing efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (8)

1. A highly flexible combined machine tool for simultaneously processing the front and back of the battery case, characterized in that it comprises a frame, and support seats are installed symmetrically on both sides of the top of the frame, and a three-axis mechanism is installed on the support seats, so that A lower three-axis mechanism is installed on the bottom plate of the frame, a tool magazine is installed on the frame, a workbench is set between the upper three-axis mechanism and the lower three-axis mechanism, and a servo transmission mechanism is installed on the workbench. The servo transmission mechanism connects the two clamps. The workbench is provided with a work area, and the two ends of the work area are respectively provided with loading and unloading areas. The two clamps are respectively located in the work area and one of the loading and unloading areas. 2. The highly flexible combined machine tool for simultaneous processing of the front and back of the battery case according to claim 1, wherein the upper three-axis mechanism includes one X-axis drive mechanism installed on the support base, two of the X-axis drive mechanisms The driving mechanism one is respectively connected to the two ends of the beam, and the Y-axis driving mechanism one is installed on the side of the beam, and the Y-axis driving mechanism one is connected to the internal cooling power head one through the Z-axis driving mechanism one, and the internal cooling power head one is equipped with a tool one. 3. The highly flexible combined machine tool for simultaneously processing the front and back of the battery case according to claim 2, wherein the lower three-axis mechanism includes two X-axis drive mechanisms that are symmetrically installed on the bottom plate of the frame, so that The X-axis drive mechanism 2 is connected to the Y-axis support, and the Y-axis drive mechanism 2 is installed on the Y-axis support. The Y-axis drive mechanism 2 is connected to the internal cooling power head 2 through the Z-axis drive mechanism 2. The internal cooling power head Install tool two on it. 4. The highly flexible combined machine tool for simultaneously processing the front and back of the battery case according to claim 3, wherein the first X-axis driving mechanism, the second X-axis driving mechanism, the first Y-axis driving mechanism, and the second Y-axis driving mechanism The Z-axis drive mechanism 1 and the Z-axis drive mechanism 2 both include a servo motor, a screw rod and a slide rail, the servo motor is connected to the screw rod for driving the screw rod to rotate, and the slide rail is used for guiding. 5. The highly flexible combined machine tool for simultaneously processing the front and back of the battery case according to claim 1, wherein the tool magazine includes a motor and a reducer connected to the motor, and the reducer is connected to the rotating disk through a bearing, so The rotating disk is connected to the cutter head, and the tool is installed on the cutter head through the tool holder. A protective cover is arranged on the periphery of the cutter head, and a knife magazine door is arranged on the protective cover. The cylinder drives the switch of the tool magazine door. 6. The highly flexible combined machine tool for simultaneous processing of the front and back of the battery case according to claim 1, characterized in that, the fixture comprises a fixture body, and a number of extension mechanisms and a number of hydraulic clamping devices are symmetrically installed on both sides of the fixture body , the pin extension mechanism is used for positioning the workpiece, and the hydraulic clamping device is used for clamping the workpiece. 7. The highly flexible combined machine tool for simultaneous processing of the front and back of the battery case according to claim 6, characterized in that the stretching mechanism includes a cylinder, the cylinder is fixedly installed on the fixture body, and the output end of the top of the cylinder is installed Round top pin, screw and mounting bracket one are installed at the tail of the cylinder, and proximity switch one is installed on the mounting bracket one, and the proximity switch one is arranged facing the screw. 8. The highly flexible combined machine tool for simultaneously processing the front and back of the battery case according to claim 6, wherein the hydraulic clamping device corresponds to the pin extension mechanism one by one, and the hydraulic clamping device includes an oil cylinder, and the oil cylinder It is fixedly installed on the fixture body, the output end of the oil cylinder is connected to the joint, and the joint is connected to the compression rod through a pivot pin. The top block is fixedly installed on the clamp body, the middle part of the pressure rod is connected to the hinge through the hinge pin, the other end of the hinge is connected to the base through the hinge pin, the tail of the base is installed with a screw rod and a second mounting bracket, and the screw is installed on the As for the sending ring, the second proximity switch is installed on the second mounting bracket, and the second proximity switch is arranged facing the sending ring.