Milling device for new energy automobile battery tray machining

Abstract

The invention discloses a milling device for processing a battery tray of a new energy automobile, which relates to the technical field of milling and comprises a base, and a gantry type rack, a clamp assembly and a cooling assembly which are arranged on the base. The edge of the battery tray is clamped and fixed through the arranged clamp assembly, so that the clamping claws of the clamping mechanism extrude, clamp and fix the four corners of the edge of the battery tray, the situation that the clamp assembly clamps and fixes the battery tray through a milling face is avoided, and it is ensured that the surface of the battery tray is milled at a time; the situation that the clamp assembly hinders milling of the milling unit is avoided; the driving mechanism drives the clamping mechanism to rotate, so that the driving mechanism drives the battery tray fixed in the driving mechanism to rotate in real time through the clamping mechanism, the milling unit can mill the battery tray from different angles, and the applicability of the device is improved; and liquid cooling and air cooling are conducted through the milling unit, it is guaranteed that cooling is conducted, meanwhile, sweeps are fully removed, and the situation that the milling effect is affected by the sweeps is avoided.

Description

Technical Field

[0001] The present invention relates to the field of milling technology, and particularly relates to a milling device for processing a battery tray of a new energy vehicle. Background Art

[0002] The battery tray of a new energy vehicle is the core load-bearing structure of the battery system, which has functions such as protecting the battery cells, heat dissipation management, and impact resistance, and directly affects the vehicle's endurance, safety, and lightweight level. The mainstream material used is aluminum alloy, which has the advantages of lightweight (low density), strong corrosion resistance, and mature processing technology. Milling processing is adopted to ensure flatness.

[0003] For example, in the patent with the authorization announcement number CN116786874B, the authorization announcement date is December 5, 2023, and the name is "A Fully Automatic Double-Sided Milling Device for a Battery Tray". This patent includes a fixed table, the inside of the fixed table is hollow, and the inner bottom wall is fixedly connected with a double-shaft motor I. The ends of the two output shafts of the double-shaft motor I are both fixedly connected with a first threaded rod. The thread directions of the outer walls of the two first threaded rods are opposite and both are threadedly connected with sliders. The upper side walls of each slider are fixedly connected with connection blocks that movably penetrate the upper side wall of the fixed table. The upper ends of each connection block are fixedly connected with moving columns that are slidably arranged on the upper side wall of the fixed table. A moving milling mechanism is arranged on the outer wall of each moving column. Through the firm clamping of the battery tray by the clamping plates and suction cups, the firmness and stability of the battery tray during milling are ensured in the present invention, and by using two milling cutters to simultaneously move up and down on both sides of the battery tray, the simultaneous milling of the welds on both sides of the battery tray can be achieved, achieving the effect of double-sided milling and improving the milling efficiency of the battery tray.

[0004] Although the above-mentioned fully automatic double-sided milling device can simultaneously move up and down on both sides of the battery tray to achieve the simultaneous milling of the welds on both sides of the battery tray, when the milling depths, lengths, and pressures on both sides of the battery tray are different, it is easy to cause the battery tray to shake and lead to the failure of milling the battery tray. In addition, the clamping mechanism of the above-mentioned fully automatic double-sided milling device cannot adjust the milling angle of the battery tray, making it difficult for the milling device to accurately mill the plane to be milled of the battery tray. Summary of the Invention

[0005] The purpose of the present invention is to provide a milling device for processing a battery tray of a new energy vehicle to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A milling device for processing a battery tray of a new energy vehicle, including a base, a gantry-type frame is arranged at the upper end of the base, and further includes: Gantry frame, the gantry frame includes a ∩-shaped frame, two slide rails are arranged at the lower end of the ∩-shaped frame, the slide rails are symmetrically arranged at the upper end of the base, a milling unit is arranged in the middle of the upper side of the ∩-shaped frame, and the milling unit can move up and down in the vertical direction; Fixture assembly, the fixture assembly includes two brackets, the brackets are arranged at the upper end of the base, a rotating shaft is arranged on the upper side of each bracket in a rotatable manner, a clamping mechanism is arranged at one end of the two rotating shafts close to each other, and the clamping mechanism clamps and fixes the edge of the battery tray through two slidable clamping claws. A driving mechanism is arranged at one end of each rotating shaft away from the clamping mechanism, and the driving mechanism is used to drive the clamping mechanism to rotate; Cooling assembly, the cooling assembly includes a cooling water pipe, the cooling water pipe is arranged on one side of the milling unit, one end of the cooling water pipe is connected with a cooling mechanism, the cooling mechanism is used to continuously supply coolant to the inside of the milling cutter of the milling unit, and a cooling air duct is arranged on the other side of the milling unit, and the cooling air duct is used to spray air to the milling unit.

[0007] As described above, a support plate is arranged in the middle of the upper end of the base, a plurality of connecting rods are symmetrically arranged at the lower end of the support plate through hinges, a threaded block is hinged at one end of each connecting rod away from the support plate, two sliding grooves are symmetrically arranged on the upper side of the base, a first threaded rod is rotatably arranged in each sliding groove, opposite threads are symmetrically arranged on the outer side of the first threaded rod, the threaded block is arranged on the outer side of the first threaded rod in a threaded fit manner, and a first motor is arranged at one end of the first threaded rod.

[0008] As described above, the driving mechanism includes a driving motor, the driving motor is arranged in the middle of the upper side of the base, a first synchronous pulley is arranged at the output end of the driving motor, a second synchronous pulley is arranged at one end of the rotating shaft away from the clamping mechanism, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

[0009] As described above, the clamping mechanism further includes a mounting plate, the mounting plate is arranged at one end of the rotating shaft away from the driving mechanism, a double-output motor is arranged in the mounting plate, a second threaded rod is arranged at each output end of the double-output motor, the second threaded rod is rotatably arranged in the mounting plate, and the threads of the two second threaded rods are arranged in opposite directions. Each second threaded rod is arranged with a connecting block in a threaded fit manner, a hydraulic telescopic rod is arranged on each connecting block, and a clamping claw is arranged at the extending end of each hydraulic telescopic rod.

[0010] As described above, the clamping jaw includes a moving block which is slidably arranged in the mounting plate. The moving block is arranged at the extending end of the hydraulic telescopic rod, and an L-shaped plate is slidably arranged in the moving block. A wedge block is slidably arranged on the L-shaped plate, and the wedge block is slidably arranged in the moving block. A baffle is arranged on the outer side of the L-shaped plate. A sliding rod is arranged on the moving block, and the sliding rod is slidably arranged in the middle of the baffle. A return spring is arranged between the baffle and the moving block, and the return spring is sleeved on the outer side of the sliding rod.

[0011] As described above, two limiting grooves are symmetrically arranged at one end of the mounting plate away from the rotating shaft. Two limiting pieces are symmetrically arranged on one side of the moving block close to the mounting plate, and each limiting groove is slidably provided with one of the limiting pieces.

[0012] As described above, the clamping mechanism further includes two limiting rods. Two clamping blocks are symmetrically arranged on the limiting rods in a sliding manner, and the clamping blocks are connected to the limiting rods through limiting springs. Two arc-shaped grooves are symmetrically arranged on the upper side of the bracket, and the limiting rods are slidably arranged in the arc-shaped grooves.

[0013] As described above, the cooling mechanism includes a water outlet pipe. The end of the water outlet pipe is provided with a mounting sleeve which is sleeved on the tool handle. The middle part of the tool handle and the milling cutter is of a cavity structure, and the cavity structure is communicated with the water outlet pipe.

[0014] As described above, one end of the cooling air duct close to the milling cutter is a conical pipe, and the conical pipe is connected to the cooling air duct through a ball hinge.

[0015] In the above technical solution, the beneficial effects of the present invention are as follows: 1. The present invention clamps and fixes the edge of the battery tray through the provided fixture assembly, so that the clamping jaws of the clamping mechanism squeeze and clamp the four corners of the edge of the battery tray, avoiding clamping and fixing the battery tray by the milling surface of the fixture assembly, so that the milling unit can mill the surface of the battery tray at one time, avoiding the situation that the fixture assembly hinders the milling of the milling unit; 2. The present invention drives the clamping mechanism to rotate through the provided driving mechanism, so that the driving mechanism drives the battery tray fixed therein to rotate in real time through the clamping mechanism, so that the milling unit can mill the battery tray from different angles, improving the applicability of the device; 3. The cooling mechanism provided in the present invention performs liquid cooling on the milling unit, enabling the coolant to cool the milling cutter and the battery tray during milling, thereby protecting the milling cutter and ensuring its cutting performance. The milling cutter is air-cooled through the cooling air duct, and dual cooling ensures sufficient cooling of the milling cutter. At the same time, the coolant is sprayed inside the milling cutter, and the waste chips at the milling cutter are blown away through the cooling air duct, ensuring the full removal of the waste chips at the milling cutter and avoiding the influence of the waste chips on the milling effect. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0017] Figure 1 Schematic three-dimensional structure diagram of the milling device for battery tray processing provided by the embodiment of the present invention; Figure 2 Schematic first planar structure diagram of the milling device for battery tray processing provided by another embodiment of the present invention; Figure 3 Schematic second planar structure diagram of the milling device for battery tray processing provided by another embodiment of the present invention; Figure 4 Cross-sectional view of the fixture assembly provided by another embodiment of the present invention; Figure 5 Schematic first three-dimensional structure diagram between the connecting block, the hydraulic telescopic rod and the clamping claw provided by another embodiment of the present invention; Figure 6 Schematic second three-dimensional structure diagram between the hydraulic telescopic rod and the clamping claw provided by another embodiment of the present invention; Figure 7 Provided by another embodiment of the present invention Figure 4 Partial enlarged view at M; Figure 8 Provided by another embodiment of the present invention Figure 4 Partial enlarged view at N.

[0018] Explanation of the reference numerals: 1. Base; 10. Support plate; 11. Connecting rod; 12. Threaded block; 13. Sliding groove; 14. First threaded rod; 15. First motor; 2. Gantry frame; 20. ∩-shaped frame; 21. Slide rail; 22. Milling unit; 3. Fixture assembly; 30. Bracket; 31. Rotating shaft; 32. Clamping mechanism; 320. Mounting plate; 321. Double-output motor; 322. Second threaded rod; 323. Connecting block; 324. Hydraulic telescopic rod; 325. Limiting rod; 326. Block; 327. Limiting spring; 33. Clamping jaw; 330. Moving block; 3300. Limiting piece; 331. L-shaped plate; 332. Wedge block; 333. Baffle; 334. Sliding rod; 335. Return spring; 34. Driving mechanism; 340. Driving motor; 341. First synchronous pulley; 342. Second synchronous pulley; 343. Timing belt; 4. Cooling assembly; 40. Cooling water pipe; 41. Cooling mechanism; 410. Water outlet pipe; 411. Mounting sleeve; 42. Cooling air duct; 420. Conical pipe. Detailed implementation manners

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below in conjunction with the accompanying drawings.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "side", "inner", "outer", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0021] As Figures 1-8 shown, a milling device for processing a new energy vehicle battery tray provided by an embodiment of the present invention includes a base 1, a gantry frame 2 is arranged at the upper end of the base 1, and further includes: Gantry frame 2, the gantry frame 2 includes an ∩-shaped frame 20, two slide rails 21 are arranged at the lower end of the ∩-shaped frame 20, the slide rails 21 are symmetrically arranged at the upper end of the base 1, a milling unit 22 is arranged in the middle of the upper side of the ∩-shaped frame 20, and the milling unit 22 can move up and down in the vertical direction; Fixture assembly 3, the fixture assembly 3 includes two brackets 30, the brackets 30 are arranged at the upper end of the base 1, a rotating shaft 31 is arranged on the upper side of each bracket 30 in a rotatable manner, a clamping mechanism 32 is arranged at each end of the two rotating shafts 31 close to each other, the clamping mechanism 32 clamps and fixes the edge of the battery tray through two slidable clamping claws 33, a driving mechanism 34 is arranged at each end of each rotating shaft 31 away from the clamping mechanism 32, and the driving mechanism 34 is used to drive the clamping mechanism 32 to rotate; Cooling assembly 4, the cooling assembly 4 includes a cooling water pipe 40, the cooling water pipe 40 is arranged on one side of the milling unit 22, one end of the cooling water pipe 40 is connected with a cooling mechanism 41, the cooling mechanism 41 is used to continuously supply coolant to the inside of the milling cutter of the milling unit 22, and a cooling air duct 42 is arranged on the other side of the milling unit 22, and the cooling air duct 42 is used to spray air to the milling unit 22.

[0022] In another embodiment provided by the present invention, a support plate 10 is arranged in the middle of the upper end of the base 1, a plurality of connecting rods 11 are symmetrically arranged at the lower end of the support plate 10 through hinges, a threaded block 12 is hinged at each end of each connecting rod 11 away from the support plate 10, two sliding grooves 13 are symmetrically arranged on the upper side of the base 1, a first threaded rod 14 is arranged in each sliding groove 13 in a rotatable manner, opposite threads are symmetrically arranged on the outer side of the first threaded rod 14, and the threaded block 12 is arranged on the outer side of the first threaded rod 14 in a threaded fit manner, and a first motor 15 is arranged at one end of the first threaded rod 14; The specific implementation method is as follows: First, the edges of the battery tray are clamped and fixed by two clamping mechanisms 32. To prevent the battery tray from being detached from the clamping mechanism 32 due to excessive force during the milling process, the first motor 15 drives the first threaded rod 14 to rotate, causing the first threaded rod 14 to drive two threaded blocks 12 arranged thereon through threaded cooperation to move. Thus, the threaded blocks 12 drive the connecting rods 11 connected thereto to move, enabling the connecting rods 11 to adjust the position height of the support plate 10, so that the support plate 10 can support and limit the lower end of the battery tray during the milling process according to the processing environment, avoiding the situation of insufficient fixation of the battery tray by the fixture assembly 3 due to excessive pressure during milling and drilling by the milling unit 22, resulting in milling failure. Specifically, when the milling unit 22 mills the plane or drills the battery tray, the first motor 15 drives the first threaded rod 14 to rotate, causing the first threaded rod 14 to drive the two threaded blocks 12 arranged thereon to approach each other. Thus, the threaded blocks 12 drive the connecting rods 11 to rotate and move, enabling the connecting rods 11 to adjust the position height of the support plate 10, so that the support plate 10 rises and adheres to the lower end of the battery tray, enabling the support plate 10 to support and limit the battery tray during milling and drilling, avoiding the situation of the battery tray falling off due to excessive force and detaching from the clamping mechanism 32; when the driving mechanism 34 drives the rotation and adjustment through the clamping mechanism 32, the first motor 15 drives the first threaded rod 14 to rotate in the reverse direction, causing the first threaded rod 14 to drive the two threaded blocks 12 arranged thereon to move away from each other. Thus, the threaded blocks 12 drive the connecting rods 11 to rotate and move, enabling the connecting rods 11 to drive the support plate 10 to descend, so that the support plate 10 descends and moves away from the lower end of the battery tray, enabling the support plate 10 to make way for the driving mechanism 34 to drive the rotation and adjustment through the clamping mechanism 32.

[0023] In another embodiment provided by the present invention, the driving mechanism 34 includes a driving motor 340, the driving motor 340 is arranged in the middle of the upper side of the base 1, a first synchronous pulley 341 is arranged at the output end of the driving motor 340, a second synchronous pulley 342 is arranged at the end of the rotating shaft 31 far from the clamping mechanism 32, and the first synchronous pulley 341 and the second synchronous pulley 342 are connected by a synchronous belt 343; The specific implementation method is as follows: When milling different surfaces of the battery tray, in order to avoid wasting processing time by manually flipping and refixing the battery tray, the battery tray is flipped by the driving mechanism 34. Specifically, first, the first motor 15 rotates the first threaded rod 14 in the reverse direction, so that the first threaded rod 14 drives the two threaded blocks 12 arranged thereon to move away from each other, thereby causing the threaded blocks 12 to drive the connecting rod 11 to rotate and move, so that the connecting rod 11 drives the support plate 10 to descend, so that the support plate 10 descends and moves away from the lower end of the battery tray, allowing the support plate 10 to make way. At this time, the driving motor 340 drives the first synchronous wheel 341 to rotate, so that the first synchronous wheel 341 drives the second synchronous wheel 342 to rotate synchronously through the synchronous belt 343, so that the second synchronous wheel 342 drives the clamping mechanism 32 to rotate through the rotating shaft 31, so that the clamping mechanism 32 drives the battery tray to rotate through the clamping claws 33, so that the driving mechanism 34 flips instead of manual flipping, and when the driving mechanism 34 drives the battery tray to flip, there is no need to perform the step of refixing, shortening the milling processing time of the battery tray. And after the battery tray is flipped, the first motor 15 drives the first threaded rod 14 to rotate, so that the first threaded rod 14 and the threaded block 12 drive the connecting rod 11 to rotate and move, so that the connecting rod 11 adjusts the position height of the support plate 10, so that the support plate 10 rises again and adheres to the lower end of the battery tray, so that the support plate 10 supports and limits the battery tray during milling and drilling.

[0024] Particularly, when the milling position of the battery tray is not in a horizontal position, that is, when the milling position of the battery tray does not coincide with the horizontal plane, the driving motor 340 drives the first synchronous wheel 341 to rotate, so that the first synchronous wheel 341 drives the second synchronous wheel 342 to rotate through the synchronous belt 343, so that the second synchronous wheel 342 drives the clamping mechanism 32 to rotate through the rotating shaft 31, so that the clamping mechanism 32 drives the battery tray to rotate at different angles, so that the clamping mechanism 32 adjusts the position of the battery tray to be milled to a horizontal position, so that the milling unit 22 can mill the position of the battery tray to be milled, without the need to replace the fixture, improving the applicability of the equipment; and at this time, only the driving mechanism 34 restricts the mounting plate 320 from rotating, and the milling action when the battery tray is in a horizontal state is much more than the milling action when the battery tray is not in a horizontal position. Therefore, the driving mechanism 34 temporarily limits the mounting plate 320 to prevent it from rotating, ensuring that the milling of the battery tray can proceed normally.

[0025] In another embodiment provided by the present invention, the clamping mechanism 32 further includes a mounting plate 320. The mounting plate 320 is disposed at an end of the rotating shaft 31 away from the driving mechanism 34. A dual-output motor 321 is disposed inside the mounting plate 320. Each output end of the dual-output motor 321 is provided with a second threaded rod 322. The second threaded rod 322 is rotatably disposed inside the mounting plate 320, and the threads of the two second threaded rods 322 are arranged in opposite directions. Each second threaded rod 322 is provided with a connecting block 323 through a threaded fit. Each connecting block 323 is provided with a hydraulic telescopic rod 324. The extending end of each hydraulic telescopic rod 324 is provided with a clamping jaw 33. The specific implementation method is as follows: Place the battery tray on the support plate 10. When clamping the battery tray, the dual-output motor 321 drives the two second threaded rods 322 mounted on its two output ends to rotate synchronously. Since the thread directions of the two second threaded rods 322 are opposite, the two second threaded rods 322 respectively drive the connecting blocks 323 disposed thereon to move in opposite directions, that is, the two connecting blocks 323 move away from each other. At this time, the first motor 15 drives the first threaded rod 14 to rotate, so that the first threaded rod 14 and the threaded block 12 drive the connecting rod 11 to rotate and move, so that the connecting rod 11 adjusts the position height of the support plate 10, so that the support plate 10 lifts the battery tray to the same position height as the clamping jaws 33, so that the battery tray enters between the clamping jaws 33. After the battery tray enters between the clamping jaws 33, the dual-output motor 321 drives the two second threaded rods 322 mounted on its two output ends to rotate synchronously in the reverse direction, so that the two second threaded rods 322 respectively drive the connecting blocks 323 disposed thereon to move in opposite directions, that is, the two threaded blocks 12 approach each other, so that the clamping jaws 33 approach the corners of the battery tray. At this time, the hydraulic telescopic rod 324 drives the clamping jaws 33 to move towards the battery tray, so that the clamping jaws 33 approach and fit on the edge surface of the battery tray, so that the clamping jaws 33 clamp and fix the battery tray; after the battery tray is milled, on the premise that the support plate 10 supports the bottom of the battery tray, the dual-output motor 321 directly drives the two second threaded rods 322 to rotate synchronously, so that the two second threaded rods 322 respectively drive the connecting blocks 323 disposed thereon to move away from each other. At the same time, the hydraulic telescopic rod 324 drives the clamping jaws 33 to move away from the battery tray, so that the clamping jaws 33 move away from the battery tray, so as to release the clamping and fixing of the battery tray by the clamping jaws 33, so as to unload the milled battery tray.

[0026] In another embodiment provided by the present invention, the clamping jaw 33 includes a moving block 330 which is slidably arranged in the mounting plate 320. The moving block 330 is arranged at the extending end of the hydraulic telescopic rod 324. An L-shaped plate 331 is slidably arranged in the moving block 330. A wedge block 332 is slidably arranged on the L-shaped plate 331. The wedge block 332 is slidably arranged in the moving block 330. A baffle 333 is arranged outside the L-shaped plate 331. A sliding rod 334 is arranged on the moving block 330. The sliding rod 334 is slidably arranged in the middle of the baffle 333. A return spring 335 is arranged between the baffle 333 and the moving block 330. The return spring 335 is sleeved outside the sliding rod 334. The specific implementation method is as follows: When the clamping jaw 33 clamps and fixes the battery tray, the hydraulic telescopic rod 324 drives the moving block 330 to move towards the battery tray, so that the wedge block 332 first contacts and fits on the edge surface of the battery tray. At this time, the hydraulic telescopic rod 324 drives the moving block 330 to continue approaching the battery tray, so that the wedge block 332 moves into the moving block 330, thereby causing the inclined surface of the wedge block 332 to squeeze the L-shaped plate 331, so that the L-shaped plate 331 slides along the moving block 330, and thus the right angle of the L-shaped plate 331 moves and fits towards the corner of the battery tray, so as to clamp and fix the battery tray by the wedge block 332 and the L-shaped plate 331. And when the hydraulic telescopic rod 324 drives the moving block 330 to fit on the edge of the battery tray, the movement and sliding of the L-shaped plate 331 reach the maximum, so that the L-shaped plate 331 has enough moving distance so that the right angle of the L-shaped plate 331 can fully approach the corner of the battery tray, ensuring that the L-shaped plate 331 can provide sufficient squeezing force and sufficient fitting area to clamp and fix the battery tray. In addition, when the L-shaped plate 331 slides along the moving block 330 to clamp the battery tray, the L-shaped plate 331 drives the baffle 333 to move synchronously along the sliding rod 334, so that the baffle 333 squeezes the return spring 335 to approach the moving block 330. When the battery tray is unloaded after milling, the hydraulic telescopic rod 324 drives the moving block 330 to move away from the battery tray. At this time, the return spring 335 drives the baffle 333 to move reversely and reset, so that the baffle 333 drives the L-shaped plate 331 to move reversely and reset along the sliding block, and further causes the L-shaped plate 331 to squeeze the inclined surface of the wedge block 332 so that the wedge block 332 moves and resets towards the outside of the moving block 330, so that it is convenient to clamp and fix the next battery tray to be milled after the wedge block 332 and the L-shaped plate 331 are reset. After the battery tray is clamped and fixed, the slide rail 21 drives the ∩-shaped frame 20 to move, so that the ∩-shaped frame 20 drives the milling unit 22 to move, thereby causing the milling unit 22 to mill the battery tray.

[0027] In another embodiment provided by the present invention, limiting grooves are symmetrically arranged at one end of the mounting plate 320 away from the rotating shaft 31. Two limiting pieces 3300 are symmetrically arranged on one side of the moving block 330 close to the mounting plate 320. Each of the limiting grooves is provided with one of the limiting pieces 3300 in a slidable manner. The specific implementation method is as follows: When the hydraulic telescopic rod 324 drives the moving block 330 to approach the battery tray, in order to prevent the moving block 330 from rotating during movement, the limiting piece 3300 that moves synchronously with the moving block 330 is arranged to slide in the limiting groove, so that the limiting piece 3300 and the limiting groove guide and limit the moving block 330 during movement, ensuring the accurate movement of the moving block 330.

[0028] In another embodiment provided by the present invention, the clamping mechanism 32 further includes two limiting rods 325. Two clamping blocks 326 are symmetrically arranged on the limiting rods 325 in a slidable manner. The clamping blocks 326 are connected to the limiting rods 325 through limiting springs 327. Two arc-shaped grooves are symmetrically arranged on the upper side of the bracket 30. The limiting rods 325 are arranged in the arc-shaped grooves in a slidable manner. The specific implementation method is as follows: The limiting rods 325 are symmetrically arranged on one side of the mounting plate 320 close to the bracket 30. When the mounting plate 320 is in a horizontal or approximately horizontal state, that is, when the milling position of the battery tray is in a horizontal or approximately horizontal state, when the first motor 15 drives the mounting plate 320 to rotate through the first synchronous pulley 341, the synchronous belt 343 and the second synchronous pulley 342, the mounting plate 320 drives the two limiting rods 325 to rotate synchronously around the rotating shaft 31, and the trajectories of the two limiting rods 325 pass through the arc-shaped grooves when rotating around the rotating shaft 31. When the clamping mechanism 32 drives the battery tray to rotate to a specified position, when the limiting rods 325 are in the arc-shaped grooves, the limiting spring 327 can squeeze the clamping blocks 326 to move outward from the limiting rods 325, and the clamping blocks 326 clamp the limiting rods 325 in the arc-shaped grooves, so that the arc-shaped grooves, the clamping blocks 326 and the limiting rods 325 can provide a certain supporting force for the mounting plate 320, reducing or even avoiding the possibility of the mounting plate 320 shaking; at this time, the bottom of the battery tray is supported and limited by the support plate 10, and at the same time, the clamping blocks 326 and the limiting rods 325 can enter the arc-shaped grooves to limit the rotation of the mounting plate 320. In this way, the clamping blocks 326, the limiting rods 325 and the arc-shaped grooves provide an additional supporting force for the battery tray through the mounting plate 320.

[0029] In another embodiment provided by the present invention, the cooling mechanism 41 includes a water outlet pipe 410. An installation sleeve 411 is arranged at the end of the water outlet pipe 410. The installation sleeve 411 is sleeved on the tool handle. The middle part of the tool handle and the milling cutter is a cavity structure, and the cavity structure is communicated with the water outlet pipe 410. The specific implementation manner is as follows: One end of the water outlet pipe 410 away from the milling cutter is connected to an external water pump, so that the water pump can convey the coolant into the water outlet pipe 410, thereby enabling the water outlet pipe 410 to convey the coolant into the mounting sleeve 411, and enabling the mounting sleeve 411 to spray the coolant onto the tool shank of the milling cutter, so as to cool the milling cutter during milling; Further, the milling cutter and the tool shank can be made into a cavity structure, and the cavity structure is communicated with the water outlet pipe 410, so that the coolant directly flows out from the middle of the milling cutter, enabling the coolant to fully cool the milling cutter and wash away the waste chips generated during milling at the same time.

[0030] In another embodiment provided by the present invention, one end of the cooling air duct 42 close to the milling cutter is a conical pipe 420, and the conical pipe 420 is connected to the cooling air duct 42 through a ball hinge; The specific implementation manner is as follows: One end of the cooling air duct 42 away from the conical pipe 420 is connected to an external air pump. The conical pipe 420 reduces the diameter of the air flow ejected, accelerating the flow rate of the air flow. Thus, when the milling cutter is milling, the air pump conveys the air flow into the cooling air duct 42, so that the air flow passes through the cooling air duct 42 and is ejected from the conical pipe 420 onto the milling cutter, thereby enabling the high-speed air flow to cool the milling cutter and blow away the waste chips generated during milling, avoiding the waste chips from affecting the milling effect of the milling cutter.

[0031] Working principle: Place the battery tray on the support plate 10. When clamping the battery tray, the double-output motor 321 drives the two second threaded rods 322 installed at its two output ends to rotate synchronously. Since the thread directions of the two second threaded rods 322 are set in opposite directions, the two second threaded rods 322 drive the connecting blocks 323 arranged on them to move in opposite directions respectively, that is, the two connecting blocks 323 move away from each other. At this time, the first motor 15 drives the first threaded rod 14 to rotate, so that the first threaded rod 14 and the threaded block 12 drive the connecting rod 11 to rotate and move, so that the connecting rod 11 adjusts the position height of the support plate 10, so that the support plate 10 lifts the battery tray to the same position height as the clamping claws 33, so that the battery tray can enter between the clamping claws 33. After the battery tray enters between the clamping claws 33, the double-output motor 321 drives the two second threaded rods 322 installed at its two output ends to rotate synchronously in the reverse direction, so that the two second threaded rods 322 drive the connecting blocks 323 arranged on them to move in opposite directions respectively, that is, the two threaded blocks 12 move closer to each other, so that the clamping claws 33 approach the corners of the battery tray. At this time, the hydraulic telescopic rod 324 drives the clamping claws 33 to move in the direction close to the battery tray, so that the clamping claws 33 approach and fit on the edge surface of the battery tray, so that the clamping claws 33 clamp and fix the battery tray; when the hydraulic telescopic rod 324 drives the moving block 330 to approach the battery tray, in order to prevent the moving block 330 from rotating during movement, a limiting piece 3300 that moves synchronously with the moving block 330 is arranged to slide in the limiting groove, so that the limiting piece 3300 and the limiting groove guide and limit the moving moving block 330 to ensure that the moving block 330 moves accurately; the hydraulic telescopic rod 324 drives the moving block 330 to move in the direction close to the battery tray, so that the wedge block 332 first contacts and fits on the edge surface of the battery tray. At this time, the hydraulic telescopic rod 324 drives the moving block 330 to continue to approach the battery tray, so that the wedge block 332 moves into the moving block 330, so that the inclined surface of the wedge block 332 presses the L-shaped plate 331, so that the L-shaped plate 331 slides along the moving block 330, so that the right angle of the L-shaped plate 331 moves and fits towards the corner of the battery tray, so that the wedge block 332 and the L-shaped plate 331 clamp and fix the battery tray; and when the hydraulic telescopic rod 324 drives the moving block 330 to fit on the edge of the battery tray, the movement and sliding of the L-shaped plate 331 reach the maximum, so that the L-shaped plate 331 has enough moving distance so that the right angle of the L-shaped plate 331 can fully approach the corner of the battery tray, ensuring that the L-shaped plate 331 can provide enough squeezing force and enough fitting area to clamp and fix the battery tray;In addition, when the L-shaped plate 331 slides along the moving block 330 to clamp the battery tray, the L-shaped plate 331 drives the baffle 333 to move synchronously along the sliding rod 334, so that the baffle 333 squeezes the return spring 335 to approach the moving block 330. When the battery tray is unloaded after milling, the hydraulic telescopic rod 324 drives the moving block 330 away from the battery tray. At this time, the return spring 335 drives the baffle 333 to move in the reverse direction to reset, so that the baffle 333 drives the L-shaped plate 331 to move in the reverse direction along the sliding block to reset. Furthermore, the L-shaped plate 331 squeezes the inclined surface of the wedge block 332 to make the wedge block 332 move outward to reset relative to the moving block 330, so that it is convenient to clamp and fix the next battery tray to be milled after the wedge block 332 and the L-shaped plate 331 are reset; After the battery tray is clamped and fixed, the ∩-shaped frame 20 is driven to move by the slide rail 21, so that the ∩-shaped frame 20 drives the milling unit 22 to move, thereby enabling the milling unit 22 to mill the battery tray; one end of the water outlet pipe 410 away from the milling cutter is connected to an external water pump, so that the water pump can convey the coolant into the water outlet pipe 410, thereby enabling the water outlet pipe 410 to convey the coolant into the mounting sleeve 411, so that the mounting sleeve 411 sprays the coolant onto the tool shank of the milling cutter, so as to cool the milling cutter during milling; further, a cavity structure can be made between the milling cutter and the tool shank, so that the cavity structure is communicated with the water outlet pipe 410, so that the coolant directly flows out from the middle of the milling cutter, enabling the coolant to fully cool the milling cutter and at the same time wash away the waste chips generated during milling. At the same time, one end of the cooling air duct 42 away from the conical pipe 420 is connected to an external air pump. The conical pipe 420 reduces the diameter of the air flow jet and speeds up the air flow velocity. Thus, when the milling cutter mills, the air pump conveys the air flow into the cooling air duct 42, so that the air flow passes through the cooling air duct 42 and sprays from the conical pipe 420 onto the milling cutter, thereby enabling the high-speed air flow to cool the milling cutter and at the same time blow away the waste chips generated by milling, preventing the waste chips from affecting the milling effect of the milling cutter; when the battery tray is milled, to prevent the battery tray from being detached from the clamping mechanism 32 due to excessive force during milling, the first motor 15 drives the first threaded rod 14 to rotate, so that the first threaded rod 14 drives two threaded blocks 12 arranged on it through thread fit to move, thereby enabling the threaded blocks 12 to drive the connecting rod 11 connected to them to move, so that the connecting rod 11 adjusts the position height of the support plate 10, enabling the support plate 10 to support and limit the lower end of the battery tray during milling according to the processing environment, preventing the clamping assembly 3 from being insufficiently fixed to the battery tray due to excessive pressure during milling and drilling by the milling unit 22, resulting in milling failure. Specifically, when the milling unit 22 mills the plane or drills the battery tray, the first motor 15 drives the first threaded rod 14 to rotate, so that the first threaded rod 14 drives the two threaded blocks 12 arranged on it to approach each other, thereby enabling the threaded blocks 12 to drive the connecting rod 11 to rotate and move, so that the connecting rod 11 adjusts the position height of the support plate 10, so that the support plate 10 rises and adheres to the lower end of the battery tray, enabling the support plate 10 to support and limit the battery tray during milling and drilling, preventing the battery tray from falling off the clamping mechanism 32 due to excessive force; when the driving mechanism 34 drives the rotation and adjustment through the clamping mechanism 32, the first motor 15 drives the first threaded rod 14 to rotate in the reverse direction, so that the first threaded rod 14 drives the two threaded blocks 12 arranged on it to move away from each other, thereby enabling the threaded blocks 12 to drive the connecting rod 11 to rotate and move, so that the connecting rod 11 drives the support plate 10 to descend, so that the support plate 10 descends and moves away from the lower end of the battery tray, enabling the support plate 10 to make way, facilitating the driving mechanism 34 to drive the rotation and adjustment through the clamping mechanism 32; When the battery tray rotates and adjusts its position, the first motor 15 rotates the first threaded rod 14 in the reverse direction, causing the two threaded blocks 12 arranged on the first threaded rod 14 to move away from each other. As a result, the threaded blocks 12 drive the connecting rod 11 to rotate and move, causing the connecting rod 11 to drive the support plate 10 to descend, so that the support plate 10 descends and moves away from the lower end of the battery tray, allowing the support plate 10 to vacate the position. At this time, the drive motor 340 drives the first synchronous wheel 341 to rotate, causing the first synchronous wheel 341 to drive the second synchronous wheel 342 to rotate synchronously through the synchronous belt 343. Thus, the second synchronous wheel 342 drives the clamping mechanism 32 to rotate through the rotating shaft 31, enabling the clamping mechanism 32 to drive the battery tray to rotate through the clamping claws 33, so that the drive mechanism 34 flips instead of manual flipping. Moreover, when the drive mechanism 34 drives the battery tray to flip, there is no need for the step of re-fixing, shortening the milling processing time of the battery tray. After the battery tray finishes flipping, the first motor 15 drives the first threaded rod 14 to rotate, causing the first threaded rod 14 and the threaded block 12 to drive the connecting rod 11 to rotate and move, enabling the connecting rod 11 to adjust the position height of the support plate 10, so that the support plate 10 rises again and adheres to the lower end of the battery tray, allowing the support plate 10 to support and limit the battery tray during milling and drilling; In particular, when the milling position of the battery tray is not in a horizontal position, that is, when the milling position of the battery tray does not coincide with the horizontal plane, the drive motor 340 drives the first synchronous wheel 341 to rotate, causing the first synchronous wheel 341 to drive the second synchronous wheel 342 to rotate through the synchronous belt 343. Thus, the second synchronous wheel 342 drives the clamping mechanism 32 to rotate through the rotating shaft 31, enabling the clamping mechanism 32 to drive the battery tray to rotate at different angles, so that the clamping mechanism 32 can adjust the position to be milled of the battery tray to a horizontal position, enabling the milling unit 22 to mill the position to be milled of the battery tray without the need to replace the fixture, improving the applicability of the equipment; And at this time, only the drive mechanism 34 restricts the mounting plate 320 from rotating, while the milling operation when the battery tray is in a horizontal state is much more than the milling operation when the battery tray is not in a horizontal position. Therefore, the drive mechanism 34 temporarily limits the mounting plate 320 to prevent it from rotating, ensuring that the milling of the battery tray can proceed normally;In addition, the limiting rods 325 are symmetrically arranged on the side of the mounting plate 320 close to the bracket 30. When the mounting plate 320 is in a horizontal or approximately horizontal state, that is, when the milling position of the battery tray is in a horizontal or approximately horizontal state, when the first motor 15 drives the mounting plate 320 to rotate through the first synchronous pulley 341, the synchronous belt 343 and the second synchronous pulley 342, the mounting plate 320 drives the two limiting rods 325 to rotate synchronously around the rotating shaft 31, and the trajectories of the two limiting rods 325 pass through the arc-shaped grooves when rotating around the rotating shaft 31. When the clamping mechanism 32 drives the battery tray to rotate to a specified position, when the limiting rod 325 is in the arc-shaped groove, the limiting spring 327 can squeeze the block 326 to move outward of the limiting rod 325, and the block 326 clamps the limiting rod 325 in the arc-shaped groove, so that the arc-shaped groove, the block 326 and the limiting rod 325 can provide a certain supporting force for the mounting plate 320, reducing or even avoiding the possibility of the mounting plate 320 shaking; at this time, the bottom of the battery tray is supported and limited by the support plate 10, and at the same time, the block 326 and the limiting rod 325 can enter the arc-shaped groove to limit the rotation of the mounting plate 320, so that the block 326, the limiting rod 325 and the arc-shaped groove provide an additional supporting force for the battery tray through the mounting plate 320.

[0032] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A milling device for processing a battery tray of a new energy vehicle, comprising a base (1), wherein a gantry frame (2) is arranged at the upper end of the base (1), and it is characterized in that, Further included are: A gantry frame (2), the gantry frame (2) includes a ∩-shaped frame (20), two slide rails (21) are provided at the lower end of the ∩-shaped frame (20), the slide rails (21) are symmetrically arranged at the upper end of the base (1), a milling unit (22) is provided in the middle of the upper side of the ∩-shaped frame (20), and the milling unit (22) can move up and down in the vertical direction; A fixture assembly (3), the fixture assembly (3) includes two brackets (30), the brackets (30) are arranged at the upper end of the base (1), a rotating shaft (31) is provided on the upper side of each of the brackets (30) in a rotatable manner, a clamping mechanism (32) is provided at one end of the two rotating shafts (31) close to each other, the clamping mechanism (32) clamps and fixes the edge of the battery tray through two slidable clamping claws (33), and a driving mechanism (34) is provided at one end of each of the rotating shafts (31) away from the clamping mechanism (32), and the driving mechanism (34) is used to drive the clamping mechanism (32) to rotate; A cooling assembly (4), the cooling assembly (4) includes a cooling water pipe (40), the cooling water pipe (40) is arranged on one side of the milling unit (22), one end of the cooling water pipe (40) is connected to a cooling mechanism (41), the cooling mechanism (41) is used to continuously supply coolant to the milling unit (22), and a cooling air duct (42) is arranged on the other side of the milling unit (22), and the cooling air duct (42) is used to spray air to the milling unit (22).

2. The milling device for processing a new energy vehicle battery tray according to claim 1, characterized in that, A support plate (10) is provided in the middle of the upper end of the base (1), a plurality of connecting rods (11) are symmetrically arranged at the lower end of the support plate (10) through hinges, a threaded block (12) is hinged at one end of each of the connecting rods (11) away from the support plate (10), two sliding grooves (13) are symmetrically arranged on the upper side of the base (1), a first threaded rod (14) is rotatably arranged in each of the sliding grooves (13), opposite threads are symmetrically arranged on the outer side of the first threaded rod (14), the threaded block (12) is arranged on the outer side of the first threaded rod (14) through a threaded fit, and a first motor (15) is arranged at one end of the first threaded rod (14).

3. A milling device for processing a battery tray of a new energy vehicle according to claim 1, characterized in that, The driving mechanism (34) includes a driving motor (340), the driving motor (340) is arranged in the middle of the upper side of the base (1), a first synchronous pulley (341) is arranged at the output end of the driving motor (340), a second synchronous pulley (342) is arranged at one end of the rotating shaft (31) away from the clamping mechanism (32), and the first synchronous pulley (341) and the second synchronous pulley (342) are connected by a synchronous belt (343).

4. A milling device for processing a battery tray of a new energy vehicle according to claim 1, characterized in that, The clamping mechanism (32) further includes a mounting plate (320). The mounting plate (320) is disposed at one end of the rotating shaft (31) away from the driving mechanism (34). A double-output motor (321) is disposed inside the mounting plate (320). Each output end of the double-output motor (321) is provided with a second threaded rod (322). The second threaded rod (322) is rotatably disposed inside the mounting plate (320), and the threads of the two second threaded rods (322) are arranged in opposite directions. Each second threaded rod (322) is provided with a connecting block (323) through threaded cooperation. Each connecting block (323) is provided with a hydraulic telescopic rod (324). Each extending end of the hydraulic telescopic rod (324) is provided with a clamping jaw (33).

5. A milling device for processing a battery tray of a new energy vehicle according to claim 4, characterized in that, The clamping jaw (33) includes a moving block (330). The moving block (330) is slidably disposed inside the mounting plate (320). The moving block (330) is disposed at the extending end of the hydraulic telescopic rod (324). An L-shaped plate (331) is slidably disposed inside the moving block (330). A wedge block (332) is slidably disposed on the L-shaped plate (331). The wedge block (332) is slidably disposed inside the moving block (330). A baffle (333) is disposed outside the L-shaped plate (331). A sliding rod (334) is disposed on the moving block (330). The sliding rod (334) is slidably disposed in the middle of the baffle (333). A return spring (335) is disposed between the baffle (333) and the moving block (330). The return spring (335) is sleeved outside the sliding rod (334).

6. The milling device for processing a battery tray of a new energy vehicle according to claim 5, characterized in that, Limit grooves are symmetrically disposed at one end of the mounting plate (320) away from the rotating shaft (31). Two limit pieces (3300) are symmetrically disposed on one side of the moving block (330) close to the mounting plate (320). Each limit groove is slidably provided with one of the limit pieces (3300).

7. A milling device for processing a battery tray of a new energy vehicle according to claim 4, characterized in that, The clamping mechanism (32) further includes two limit rods (325). Two clamping blocks (326) are symmetrically and slidably disposed on the limit rods (325). The clamping blocks (326) are connected to the limit rods (325) through limit springs (327). Two arc-shaped grooves are symmetrically disposed on the upper side of the bracket (30). The limit rods (325) are slidably disposed in the arc-shaped grooves.

8. A milling device for processing a battery tray of a new energy vehicle according to claim 1, characterized in that, The cooling mechanism (41) includes a water outlet pipe (410). An installation sleeve (411) is disposed at the end of the water outlet pipe (410). The installation sleeve (411) is sleeved on the tool handle. The middle part of the tool handle and the milling cutter is a cavity structure, and the cavity structure is communicated with the water outlet pipe (410).

9. A milling device for processing a battery tray of a new energy vehicle according to claim 1, characterized in that, One end of the cooling air duct (42) close to the milling cutter is a conical pipe (420). The conical pipe (420) is connected to the cooling air duct (42) through a ball joint.

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