Machining tool for thin-wall part of new energy battery box

Abstract

The invention provides a new energy battery box thin-wall part machining tool. The new energy battery box thin-wall part machining tool comprises a four-axis bottom plate. The four-axis bottom plate is provided with a plurality of positioning grooves, a plurality of pier mounting holes and a plurality of mounting grooves; the plurality of positioning blocks are mounted and fixed in the positioning grooves and are used for being matched with the bottom plate grooves of the battery box for positioning; a plurality of bridge piers are fixedly mounted on the bridge pier mounting holes; the pressing plate is mounted on the bridge pier and is used for fixing the battery box in the vertical direction of the bridge pier; the side edge fixing device is mounted on the mounting groove and is used for fixing the battery box in the horizontal direction; the universality is enhanced, and the method is suitable for battery box blanks of different sizes; the cutter vibration phenomenon in the machining process is prevented, and the reinforcing device also has an adjusting function to adapt to the error of the blank; the battery box clamping frequency is reduced, and the machining efficiency is improved; and the limiting device is additionally arranged, so that product deformation caused by extra pressing force on the product even if a worker exerts excessive locking force is avoided, and the machining precision of the product is ensured.

Description

Technical Field

[0001] The present invention relates to the mechanical processing industry, and in particular to a tool for processing thin-walled parts of a new energy battery box. Background Art

[0002] The battery box made of magnesium alloy is a relatively thin-walled part with an overall wall thickness of only 3 mm. The following problems exist in its processing:

[0003] 1. Magnesium alloy extruded profiles have defects such as deformation and uneven shrinkage, with an error of ±0.5mm, making clamping and positioning very difficult during the processing.

[0004] Second, because the overall wall thickness is only 3 mm, its strength is insufficient, and vibration will occur during the processing. The resulting vibration marks will seriously affect the sealing and product size of the battery box.

[0005] 3. The battery box has 5 surfaces to be processed. Using the traditional method, it takes 5 clamping steps to complete the processing. The processing efficiency is low, and multiple clamping steps will also make it impossible to guarantee the position of each processing surface (due to poor precision of the blank and inaccurate positioning).

[0006] 4. Because it is a thin-walled part, workers cannot ensure that the locking force is consistent each time during the clamping process. This will cause the deformation of the workpiece to be different each time, making it impossible to guarantee the processing accuracy. Summary of the Invention

[0007] The purpose of the present invention is to overcome the above-mentioned defects and provide a new energy battery box thin-walled parts processing tooling.

[0008] The present invention adopts the following technical solutions:

[0009] A tool for processing thin-walled parts of a new energy battery box includes: a four-axis base plate; the four-axis base plate is provided with a plurality of positioning grooves, a plurality of pier mounting holes, and a plurality of mounting grooves; positioning blocks, wherein the plurality of positioning blocks are installed and fixed in the positioning grooves and are used to cooperate with the grooves of the base plate of the battery box for positioning; piers, wherein the plurality of piers are installed and fixed on the pier mounting holes; a pressure plate, installed on the piers and used to cooperate with the piers to fix the battery box in the vertical direction; a side fixing device, installed on the mounting grooves and used to fix the battery box in the horizontal direction.

[0010] Preferably, two positioning grooves are correspondingly provided at the front and rear ends in the middle of the four-axis base plate.

[0011] Preferably, each of the positioning grooves is provided with a plurality of screw holes; the positioning block is provided with a plurality of positioning block screw holes, and the positioning block is connected and fixed with the plurality of screw holes and the positioning block screw holes by a plurality of bolts.

[0012] Preferably, each of the pressing plates is fixed across the left and right piers; a plurality of limiting columns are provided between the piers and the pressing plates, and the limiting columns are used to prevent the pressing plates from excessively squeezing the battery box.

[0013] Preferably, a plurality of mounting slot screw holes are provided in the mounting slot, and the bottom of the side fixing device is fixed to the mounting slot through the plurality of mounting slot screw holes.

[0014] Preferably, the side fixing device includes a plurality of side plates, and the plurality of side plates are symmetrically distributed above the four-axis base plate.

[0015] Preferably, it further comprises a protective plate, which is mounted on the inner side of the side plate and is used to contact the side of the battery box; the side plate is provided with a plurality of tightening through holes; wherein the tightening through holes are used to contact the protective plate with the side of the battery box;

[0016] Preferably, the side plate is provided with a rebound through hole; a spring mounting position is provided in the rebound through hole, and a spring is provided in the spring mounting position for fixing the battery box in a horizontal direction while avoiding excessive squeezing of the battery box.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are:

[0018] First, the versatility is enhanced. The present invention is more suitable for battery box blanks of different sizes.

[0019] 2. To prevent tool vibration during machining, the strengthening device is also equipped with an adjustment function to adapt to the error of the blank.

[0020] 3. Reduce the number of battery box clamping times and improve processing efficiency and accuracy.

[0021] 4. Add a limit device. Even if the worker tightens the product too hard, it will not cause additional pressing force on the product and cause deformation of the product, thus ensuring its processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the present invention.

[0024] Figure 3 It is a cross-sectional view of the present invention.

[0025] Figure 4 It is a schematic diagram of the four-axis base plate of the present invention.

[0026] Figure 5 It is a top view of the four-axis base plate of the present invention.

[0027] Figure 6 It is a schematic diagram of the positioning block of the present invention.

[0028] Figure 7 It is a schematic diagram of the side panel of the present invention.

[0029] Figure 8 It is a schematic diagram of a protective plate of the present invention.

[0030] Figure 9 Schematic diagram of the bridge pier of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose and technical solution of the present invention clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments:

[0032] like Figures 1 to 9 The shown tooling for processing thin-walled parts of a new energy battery box includes: a four-axis base plate 1; the four-axis base plate is provided with a plurality of positioning grooves 11, a plurality of pier mounting holes 12, and a plurality of mounting grooves 13; it also includes positioning blocks 2, and a plurality of positioning blocks 2 are installed and fixed in the positioning grooves 11, for cooperating with the bottom plate grooves 31 of the battery box 3 for positioning; each of the positioning grooves 11 is provided with a plurality of screw holes; the positioning block 2 is provided with a plurality of positioning block screw holes, and the positioning block 2 is fixed to the plurality of screw holes and the positioning block screw holes by a plurality of bolts to fix the positioning block in the positioning groove 11.

[0033] In this embodiment, two positioning grooves 11 are correspondingly provided at the front and rear ends in the middle of the four-axis base plate, and positioning blocks 2 are respectively installed and fixed in the two positioning grooves; the positioning blocks 2 cooperate with the base plate groove 31 of the battery box 3 to complete the positioning of the center position of the battery box 3. Since the battery boxes 3 are of different sizes, the corresponding base plate grooves 31 are also of different sizes. The present invention replaces the positioning blocks 2 of different sizes so that the positioning blocks 2 and the base plate grooves 31 cooperate with each other; that is, the present invention can replace positioning blocks of different sizes to adapt to the product (the same size product blanks are sorted before processing), avoiding the trouble of using multiple sets of tooling to adapt to the different sizes of products. At the same time, this tooling is installed on the four-axis machining center, and four surfaces can be added at one time. The finished product can be processed by two clampings, which greatly improves the processing efficiency and processing accuracy.

[0034] Bridge piers 4, several bridge piers are installed and fixed on the bridge pier installation holes 12; a pressure plate 5 is installed above the bridge pier 4, and is used to cooperate with the bridge pier 4 to fix the battery box in the vertical direction; the present invention is provided with four bridge piers 4, two on each side, and the bridge piers on the left and right sides are opposite to each other; the pressure plate 5 spans the left and right bridge piers for fixed installation.

[0035] Preferably, a plurality of limiting columns 41 are provided between the bridge pier and the pressing plate, and the limiting columns 41 are used for preventing the pressing plate 5 from over-extruding the battery box while fixing the battery box.

[0036] When fixing, first place the pressure plate above the left and right bridge piers 4, adjust the position of the bolt holes, lock the bolts in, and complete the fixation of the battery box. Since several limit columns 41 are set on the bridge piers, by setting the height of the limit columns in advance, it is ensured that the pressure plate 5 can avoid excessive squeezing of the battery box while fixing the battery box.

[0037] The side fixing device 6 is installed on the mounting groove 13 and is used to fix the battery box 3 in the horizontal direction. To fix the side fixing device 6, the present invention provides a plurality of mounting groove screw holes in the mounting groove, and the bottom of the side fixing device is fixed to the mounting groove through the plurality of mounting groove screw holes.

[0038] The side fixing device includes several side plates 61 and protective plates 62, and the several side plates are symmetrically distributed on the left and right above the four-axis bottom plate; the protective plates 62 are installed on the inner side of the side plates 61 for contacting the side of the battery box 3; the side plates 61 are provided with several tightening through holes 611; wherein, the tightening through holes 611 are used to adjust the protective plates 62 to contact the side of the battery box 3; the side plates 61 are provided with rebound through holes 612; a spring mounting position is provided in the rebound through hole 612, and a spring 63 is provided in the spring mounting position, which is used to fix the battery box in the horizontal direction while avoiding excessive squeezing of the battery box.

[0039] To use the sidewall fixing device, first place the adjusting plate 62 between the side panel 61 and the side of the battery compartment 3. Then, adjust the bolts tightening the through-holes 611 until the adjusting plate 62 is in contact with the side of the battery compartment 3. At this point, it is only lightly touching, not firmly fixed. The battery compartment 3 is adjusted forward and backward so that both the front and rear ends of the battery compartment 3 protrude from the sidewall fixing device (to facilitate machining the front and rear ends of the battery compartment 3 after fixing). After adjustment, tighten the bolts into the rebound through-holes 612. Because the rebound through-holes 612 are provided with a spring mounting position with a spring 63, this design ensures that the battery compartment is fixed horizontally while avoiding excessive compression.

[0040] The use steps and principles of the present invention are as follows:

[0041] 1. Select the positioning block; that is, select the positioning block that matches the battery box to be processed and install it on the four-axis base plate; since the present invention can replace positioning blocks of different sizes to adapt to the product, the product blanks of the same size can be classified before processing, avoiding the trouble of using multiple sets of tooling to adapt to products of different sizes.

[0042] 2. Align the bottom plate groove of the battery box with the positioning block and insert it, and preliminarily adjust the position of the battery box so that the front and rear ends of the battery box 3 protrude from the side wall fixing device (to facilitate processing of the front and rear ends of the battery box 3 after fixing).

[0043] 3. Place the pressure plate above the left and right bridge piers, adjust the position of the bolt holes, and lock the bolts in. Do not lock them at this time so that the battery box can still move forward and backward.

[0044] Fourth, place the adjustment plate between the side panel and the side of the battery box; then adjust the bolts in the tightening holes until the adjustment plate contacts the side of the battery box, making only light contact, not a firm fix. Adjust the position of the battery box forward and backward so that both the front and rear ends of the battery box protrude from the side wall fixing device (to facilitate machining the front and rear ends of the battery box 3 after fixing); after adjustment, tighten the bolts in the rebound hole 612. Because the rebound hole 612 has a spring mounting position with a spring 63, this design can ensure that the battery box is fixed horizontally while avoiding excessive compression.

[0045] 5. Tighten the bolts between the bridge pier and the pressure plate. Since a number of limit posts 41 are provided between the bridge pier and the pressure plate, the limit posts 41 are used to prevent the pressure plate 5 from over-extruding the battery box while fixing the battery box.

[0046] Compared with the prior art, the advantages and positive effects of the present invention are:

[0047] First, to enhance versatility, the present invention adopts replacement of positioning blocks to better adapt to battery box blanks of different sizes.

[0048] Second, to prevent tool vibration during machining, the strengthening device is also equipped with an adjustment function to adapt to the tolerance of the blank, so that the surface roughness of the machined surface can reach 1.6um.

[0049] 3. Using the four-axis machining center processing method, the processing can be completed in two clampings, which greatly improves the processing efficiency and reduces the positioning error caused by multiple clampings.

[0050] 4. Add a limit device. Even if the worker tightens the product too hard, it will not cause additional pressing force on the product and cause deformation of the product, thus ensuring its processing accuracy.

[0051] 5. The clamping is simple and the processing accuracy of the product can be guaranteed without the need for professional operation.

[0052] In the description of the invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of the invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood broadly. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0054] The components used in the present invention are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0055] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of protection of the present invention.

Claims

1. A new energy battery box thin-walled parts processing tool, characterized in that: include: Four-axis base plate; the four-axis base plate is provided with a plurality of positioning grooves, a plurality of pier mounting holes, and a plurality of mounting grooves; Positioning blocks, several of which are installed and fixed in the positioning grooves and are used to cooperate with the grooves on the bottom plate of the battery box for positioning; Bridge piers, wherein a plurality of bridge piers are installed and fixed on the bridge pier installation holes; A pressure plate is installed on the bridge pier and is used to fix the battery box in the vertical direction of the bridge pier; The side fixing device is installed on the installation slot and is used to fix the battery box in the horizontal direction.

2. A new energy battery box thin-walled parts processing tool according to claim 1, characterized in that: Two positioning grooves are correspondingly provided at the front and rear ends in the middle of the four-axis base plate.

3. A new energy battery box thin-walled parts processing tool according to claim 2, characterized in that: Each of the positioning slots is provided with a plurality of screw holes; The positioning block is provided with a plurality of positioning block screw holes, and the positioning block is fixed with the plurality of screw holes and the positioning block screw holes by a plurality of bolts.

4. A new energy battery box thin-walled parts processing tool according to claim 1, characterized in that: Each of the pressing plates spans the left and right piers for fixing; A plurality of limiting columns are provided between the bridge pier and the pressure plate, and the limiting columns are used to prevent the pressure plate from excessively squeezing the battery box.

5. The tooling for processing thin-walled parts of a new energy battery box according to claim 1 is characterized in that: A plurality of mounting slot screw holes are provided in the mounting slot; The bottom of the side fixing device is fixed on the mounting slot through a plurality of mounting slot screw holes.

6. A new energy battery box thin-walled parts processing tool according to claim 5, characterized in that: The side fixing device includes a plurality of side plates, and the plurality of side plates are symmetrically distributed above the four-axis bottom plate.

7. A new energy battery box thin-walled parts processing tool according to claim 6, characterized in that: It also includes a protective plate installed on the inner side of the side plate and used to contact the side of the battery box; The side plates are provided with a plurality of tightening through holes; The tightening through hole is used to contact the protective plate with the side of the battery box.

8. The tooling for processing thin-walled parts of a new energy battery box according to claim 7, characterized in that: The side plate is provided with a rebound through hole; A spring mounting position is provided in the rebound through hole, and a spring is provided in the spring mounting position for fixing the battery box in a horizontal direction while avoiding excessive squeezing of the battery box.

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