Complex multi-surface high-correlation location degree machining equipment for automobile aluminum doorsill beam

Abstract

According to the complex multi-surface high-correlation location degree machining equipment for the automobile aluminum doorsill beam, a machined aluminum profile is fixedly arranged on a rotating base, index plates are arranged at the two ends of the rotating base respectively, and the two ends of the rotating base are connected with rotating discs through supporting frames; a rotating shaft of the dividing plate is fixedly connected with the rotating plate through a connecting structure. The multi-surface machining center is used for machining multiple surfaces of an aluminum profile doorsill beam, has the effect of machining a plurality of machining surfaces after one-time clamping and positioning, has the machining efficiency and accuracy almost the same as those of a five-axis machining center, greatly reduces the machining cost of a doorsill beam profile, and improves the machining efficiency of the doorsill beam profile; the problem that the hole position deviation between each machining face and the datum hole of the datum plane is too large is solved, and the machining hole position association degree error of each machining face is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile processing, in particular to complex multi-faceted high-correlation position processing equipment for automobile aluminum door sill beams. Background Art

[0002] In recent years, the proportion of lightweight passenger car parts has gradually increased. Replacing the original steel vehicle parts with high-strength aluminum alloys is the future trend of the automotive manufacturing industry; especially in the rapid development stage of new energy vehicles with an increasing proportion, aluminum alloying of various beam parts in the car is inevitable. The threshold beam is an important beam on the chassis of the vehicle. It is located at the edge of the battery tray at the bottom of the door of the new energy vehicle. It has a great impact on the stability of the entire body and the carrying capacity of the power battery tray.

[0003] The threshold beam is made of hollow aluminum alloy profile, and its four sides are fixedly connected to other automobile components by bolts and other fasteners. Various auxiliary parts also need to be installed on the threshold beam. Therefore, dozens of through holes need to be pre-processed around the threshold beam profile, and the relative position accuracy between each hole needs to be controlled below 1mm. This requires that the hole position on each side of the profile not only needs to be accurately processed on a single side, but also the error control between the hole position of each hole and the reference hole position of the reference surface is also more stringent. In the conventional drilling and milling of polyhedral aluminum alloy parts, the following methods can be selected: 1. One-time clamping and positioning can be adopted, and multiple faces can be processed by a five-axis machining center to ensure that the position of the processed holes on each face is accurate and without deviation; however, the purchase cost of the five-axis machining center is high, resulting in high processing fees allocated to each threshold beam product; 2. Using an ordinary CNC machining center, each face is re-clamped and positioned before processing. Although this processing method has a low processing equipment cost, it requires the operator to clamp multiple times, which greatly affects the processing efficiency. In addition, multiple clamping and positioning will also cause errors in the positional relationship between the positions of the processed surfaces, affecting the installation accuracy during vehicle assembly. Summary of the invention

[0004] The purpose of the utility model is to provide a complex multi-faceted high-correlated position processing equipment for automobile aluminum door sill beams, which is used for multi-faceted processing of aluminum profile door sill beams. It has the effect of processing multiple processing surfaces after one clamping and positioning. The processing efficiency and accuracy are almost the same as those of a five-axis machining center, which greatly reduces the processing cost of the door sill beam profile and improves the processing efficiency of the door sill beam profile.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] The processed aluminum profile is fixedly placed on the rotating base, and an active indexing plate and a driven indexing plate are respectively arranged at both ends of the rotating base. The two ends of the rotating base are connected to the turntable through a support frame; the rotating shafts of the active indexing plate and the driven indexing plate are fixedly connected to the turntable through a connecting structure.

[0007] The indexing plates at both ends are CNC indexing plates, also known as CNC turntables. The active indexing plate is driven by a servo motor, which is synchronously controlled by the PLC of the processing equipment. The driven indexing plate has no power drive. Both the active indexing plate and the driven indexing plate are connected to the hydraulic pipeline and braked by hydraulic pressure.

[0008] The chuck A of the active indexing plate is connected to the turntable at one end through a T-shaped key and a keyway; the chuck B of the driven indexing plate is connected to the turntable at one end through a T-shaped key and a keyway. The chuck drives the turntable to rotate, and then drives the entire rotating base to rotate. By rotating and fixing different processing surfaces upward, the milling cutter of an ordinary CNC milling machine can process various processing surfaces of the aluminum profile from top to bottom.

[0009] A plurality of positioning clamps are arranged on one side of the rotating base. The positioning clamps include quick clamps and clamps. The clamps can press the processed aluminum profiles onto the rotating base from top to bottom.

[0010] A positioning block is arranged at one end of the rotating base, and the positioning block is divided into an end positioning block and a side positioning block, which respectively correspond to the support pads to position the end face and the side face of the processed aluminum profile. The positioning block defines the reference position of the processed aluminum profile.

[0011] A clamping mechanism is arranged at one end of the rotating base, and the clamping mechanism includes a quick clamp and a clamping block, and the clamping block can clamp the end surface of the processed aluminum profile horizontally or obliquely. After the clamping mechanism is pressed down, the horizontal position of the processed aluminum profile is firmly fixed.

[0012] A hollow is set at a specific position on the rotating base, and the position of the hollow matches the position to be processed on the bottom surface of the processed aluminum profile. The shape and position of the hollow are determined by the position and shape of the processed aluminum profile to be processed. Different processed profiles have different hollow shapes and positions of the rotating base.

[0013] The cross section of the threshold beam profile of this patent is divided into five processing planes AE. The processing steps of the threshold beam aluminum profile are as follows:

[0014] 1: The dividing head is at the starting position (0° position), and all clamps are open;

[0015] 2: Take a threshold beam and put it into the tooling;

[0016] 3: Clamping tooling;

[0017] 4: Start the processing, the indexing plate rotates from 0° to 3°, 90°, 180°, 166°, and 3° in sequence, and processes each surface or end;

[0018] 5: After the processing is completed, the indexing head returns to the starting position;

[0019] 6: Open the clamp, take out the finished product, and cycle in sequence.

[0020] Advantages of utility models

[0021] 1. The utility model changes the status quo of manual re-surfacing and clamping processing and five-axis machining center processing in traditional aluminum profile multi-surface processing. It uses a dividing plate as the driving force for the rotation of the aluminum profile to achieve accurate rotation and re-surfacing of the workpiece. It cooperates with ordinary CNC machining centers to achieve efficient multi-surface processing and greatly saves equipment investment.

[0022] 2. The utility model solves the problem of excessive deviation of the hole positions of each processing surface and the reference hole of the reference surface, thereby reducing the correlation error of the processing hole positions of each processing surface.

[0023] 3. The utility model has low production and maintenance costs, is easy to operate and easy to get started, and reduces the training time for operating and processing personnel.

[0024] 4. The utility model can be directly installed on the workbench of the existing CNC machining center without the need to modify the existing equipment, and is convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the elevation structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the vertical structure of the utility model from another angle;

[0027] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0028] Figure 4 for Figure 1 Schematic diagram of the structure in the middle A direction;

[0029] Figure 5 for Figure 1 Schematic diagram of the structure in the middle B direction;

[0030] The serial numbers and component names in the figure are: 1-indexing plate; 2-chuck; 3-rotating base; 31-turntable, 32-hollow area; 33-positioning block; 34-support frame; 4-positioning clamp, 5-clamping mechanism; 6-sill beam. DETAILED DESCRIPTION Example

[0031] The automotive aluminum door sill beam is a complex multi-faceted high-correlation position processing equipment. The processed aluminum profile is fixedly placed on the rotating base 3. An active indexing plate 1 and a driven indexing plate 2 are respectively arranged at both ends of the rotating base 3. The two ends of the rotating base 3 are connected to a turntable 31 through a support frame 35; the rotating shafts of the active indexing plate 1 and the driven indexing plate 2 are fixedly connected to the turntable 31 through a connecting structure.

[0032] The chuck A11 of the active indexing plate 1 is connected to the turntable 31 at one end through a T-shaped key and a keyway; the chuck B21 of the driven indexing plate 2 is connected to the turntable 31 at one end through a T-shaped key and a keyway.

[0033] A plurality of positioning clamps 4 are arranged on one side of the rotating base 3 . The positioning clamps 4 include quick clamps and chucks. The chucks can press the processed aluminum profile onto the rotating base 3 from top to bottom.

[0034] A positioning block 33 is disposed at one end of the rotating base 3. The positioning block 33 is divided into an end positioning block and a side positioning block, which respectively correspond to the support pads to position the end surface and the side surface of the processed aluminum profile.

[0035] A clamping mechanism 5 is disposed at one end of the rotating base 3. The clamping mechanism 5 includes a quick clamp and a clamping block. The clamping block can clamp the end surface of the processed aluminum profile horizontally or obliquely.

[0036] A specific position on the rotating base 3 is hollowed out, and the position of the hollowed out matches the position to be processed on the bottom surface of the processed aluminum profile.

[0037] Application examples:

[0038] The original CNC machining center processes the threshold beam by manual turning over, which requires 6 processes. The processing time of one threshold beam is 26 minutes, and the processing qualification rate is 94%. The defects of the original processing method mainly lie in the large deviation between the hole position of each processing surface and the reference hole of the reference surface.

[0039] After adopting this patent, the process can be completed in one step. The processing time of a threshold beam is 20 minutes, and the processing qualification rate is 99%. The problem of excessive deviation between the processing positions of the reference holes of each processing surface and the reference surface is eradicated.

Claims

1. Complex multi-faceted high-correlation position processing equipment for automobile aluminum door sill beams, characterized by: The processed aluminum profile is fixedly mounted on the rotating base (3), an active indexing disk (1) and a driven indexing disk (2) are respectively arranged at two ends of the rotating base (3), and the two ends of the rotating base (3) are connected to a turntable (31) via a support frame (35); the rotating shafts of the active indexing disk (1) and the driven indexing disk (2) are fixedly connected to the turntable (31) via a connecting structure.

2. According to claim 1, the complex multi-faceted high-correlation position processing equipment for automobile aluminum door sill beams is characterized in that: The chuck A (11) of the active indexing disk (1) is connected to a rotating disk (31) at one end via a T-shaped key and a key slot; the chuck B (21) of the driven indexing disk (2) is connected to a rotating disk (31) at one end via a T-shaped key and a key slot.

3. The complex multi-faceted high-correlation position processing equipment for automobile aluminum door sill beams according to claim 1 is characterized in that: A plurality of positioning clamps (4) are arranged on one side of the rotating base (3), wherein the positioning clamps (4) comprise a quick clamp and a clamp head, and the clamp head can press the processed aluminum profile onto the rotating base (3) from top to bottom.

4. The complex multi-faceted high-correlation position processing equipment for automobile aluminum door sill beams according to claim 1 is characterized in that: A positioning block (33) is provided at one end of the rotating base (3), and the positioning block (33) is divided into an end positioning block and a side positioning block, which respectively correspond to the support pads to position the end face and the side face of the processed aluminum profile.

5. The complex multi-faceted high-correlation position processing equipment for automobile aluminum door sill beams according to claim 1 is characterized in that: A clamping mechanism (5) is provided at one end of the rotating base (3), and the clamping mechanism (5) comprises a quick clamp and a clamping block, and the clamping block can clamp the end surface of the processed aluminum profile horizontally or obliquely.

6. The complex multi-faceted high-correlation position processing equipment for automobile aluminum door sill beams according to claim 1 is characterized in that: The rotating base (3) is provided with a hollowing out, and the position of the hollowing out matches the position to be processed on the bottom surface of the processed aluminum profile.

Images