Multi-angle machining flexible CNC tool

Abstract

The utility model relates to the related technical field of machining flexible tools, and discloses a multi-angle machining flexible CNC tool which comprises a front suspension module, a rear suspension module and a numerical control platform. The front suspension module is used for positioning an automobile front suspension embedded assembly; the rear suspension module is used for positioning the automobile rear suspension embedded assembly. According to the flexible numerical control tool for the vehicle frame, the modular design is adopted, production of a new vehicle type can be met by switching the positioning units through building block combination assembly, a main body structure does not need to be changed, the production cost of a product is reduced, and the tool response of the new vehicle type is improved. And the manufacturing requirements of product diversification of modern enterprises are met, the production land occupation resources are reduced to the maximum extent, and the enterprise management and operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to processing flexible tooling, in particular to a multi-angle processing flexible CNC tooling. Background Art

[0002] The production and manufacturing method of automobiles is different from that of bridge vehicles. Since automobiles are mostly customized products, there are many types of products and frequent changes in technical drawings. The frame is an important part of the automobile. The production and manufacturing accuracy of the frame directly affects the driving performance of the automobile chassis; the frame production process requires the use of tooling to ensure product accuracy; frame production is a key production process, and different models need to design and manufacture corresponding special frame tooling. Due to the wide variety of automobile products and frequent changes in technical drawings, there are many frame tooling and a large amount of changes and adjustments.

[0003] The existing frame tooling has the following problems: 1. There are too many toolings, which occupy a large area, resulting in low workshop utilization and difficulty in tooling maintenance and management; 2. There are many new products, and the production cycle is short. Tooling production cannot keep up with the production progress, affecting the production and product delivery cycle; 3. Frequent changes and adjustments to tooling result in low tooling precision, high investment in manpower and material resources, increased product costs, and reduced product market competitiveness. Utility Model Content

[0004] In response to the above-mentioned technical problems, the utility model provides a flexible CNC tooling for a vehicle frame, which does not require changes to the main structure, reduces the production cost of the product, improves the tooling response of new vehicle models, adapts to the diversified manufacturing requirements of modern enterprise products, minimizes production space resources, and reduces enterprise management and operating costs.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A multi-angle processing flexible CNC tooling, including a front suspension module, a rear suspension module and a CNC platform;

[0007] The front suspension module is used to locate the embedded components of the front suspension of the vehicle;

[0008] The rear suspension module is used to locate the embedded components of the rear suspension of the vehicle;

[0009] The numerical control platform is used to provide support and positioning for the front suspension module and the rear suspension module;

[0010] The front suspension module is fixedly connected to one end of the CNC platform, and the rear suspension module is slidably connected to the other end of the CNC platform;

[0011] The front suspension module and the rear suspension module both include a flexible platform and a suspension positioning unit, a frame positioning unit and an adjusting mechanism which are detachably arranged on the corresponding flexible platform.

[0012] Preferably, the flexible platform is a mesh plate with mesh holes distributed in an array, and the suspension positioning unit, the frame positioning unit and the adjustment mechanism are all connected to the corresponding mesh holes of the mesh plate through quick fasteners.

[0013] Preferably, the CNC platform comprises: a support bracket, a linear guide rail and a positioning member; the linear guide rail is arranged on one end of the support bracket where the rear suspension module is arranged, extending along the length direction of the support bracket;

[0014] The positioning member is a frame body and is slidably fitted on the linear guide rail via a slider, and the flexible platform of the rear suspension module is detachably fixed on the positioning member.

[0015] Preferably, the CNC platform further comprises: a plurality of adjustment racks evenly distributed at the bottom of the support bracket.

[0016] Preferably, a limiting mechanism for limiting the sliding of the rear suspension module is provided on one end of the support bracket away from the front suspension module.

[0017] Preferably, the tooling also includes a wheelbase positioning control mechanism, which includes a drive motor arranged on the positioning member, a drive gear arranged on the drive end of the drive motor, and a rack arranged on the support bracket and parallel to the linear guide rail and meshing with the drive gear.

[0018] Preferably, the driving motor includes a servo motor and a reducer.

[0019] Preferably, the adjustment mechanisms on the front suspension module and the rear suspension module are in two groups, and the two groups of adjustment mechanisms are respectively arranged at the two ends of their corresponding flexible platforms; the suspension positioning unit and the frame positioning unit are arranged between the two corresponding groups of adjustment mechanisms.

[0020] Preferably, the two groups of adjustment mechanisms are a first adjustment mechanism that can be moved and adjusted along the length direction and height direction of the corresponding flexible platform, and a second adjustment mechanism that can be moved and adjusted along the width direction and height direction of the corresponding flexible platform; the number of adjustment units in the two groups of adjustment mechanisms is two.

[0021] The advantages and positive effects of the utility model are: through the flexible CNC tooling of the frame, the modular design is adopted, and the switching of the positioning unit can meet the production of new models by building blocks and assembling, without changing the main structure, reducing the production cost of the product and improving the tooling response of the new model. It adapts to the manufacturing requirements of the diversified products of modern enterprises, minimizes the production space resources, and reduces the management and operation costs of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a vehicle frame flexible CNC tooling according to an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a numerical control platform (including a flexible platform of a front suspension module and a rear suspension module) of a vehicle frame flexible numerical control tooling of an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of a numerical control platform of a vehicle frame flexible numerical control tooling according to an embodiment of the utility model;

[0026] Figure 4 yes Figure 3 A schematic diagram of the longitudinal cross-sectional structure of a flexible CNC tooling for a vehicle frame;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the front suspension module of the vehicle frame flexible CNC tooling of the embodiment of the utility model;

[0028] Figure 6 It is a three-dimensional structural schematic diagram of a rear suspension module of a vehicle frame flexible CNC tooling according to an embodiment of the utility model;

[0029] Figure 7 It is a structural schematic diagram of a frame positioning unit of a front suspension module of a frame flexible CNC tooling of an embodiment of the utility model;

[0030] Figure 8 It is a structural schematic diagram of the first adjusting mechanism of the front suspension module of the vehicle frame flexible CNC tooling in the embodiment of the utility model.

[0031] The symbols in the accompanying drawings are described as follows:

[0032] 1. CNC platform; 11. Support bracket; 12. Adjustment frame; 13. Positioning piece; 14. Linear guide rail; 15. Rack; 16. Limiting mechanism; 17. Slider; 18. Positioning hole;

[0033] 2. front suspension module; 21. first flexible platform; 22. first suspension positioning unit; 23. first frame positioning unit; 231. positioning seat; 232. base; 233. quick locking pin; 234. positioning slot; 24. first adjustment mechanism; 241. bottom plate; 242. first support; 243. first slide; 244. first screw rod; 245. fixed seat; 246. fixed shaft; 247. first scale ruler; 248. second support; 249. second slide; 2410. second screw rod; 2411. positioning block; 2412. second scale ruler; 2413. first hand wheel; 2414. second hand wheel;

[0034] 3. Rear suspension module; 31. Second flexible platform; 32. Second suspension positioning unit; 33. Second frame positioning unit; 34. Second adjustment mechanism;

[0035] 4. Driving gear. DETAILED DESCRIPTION

[0036] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0037] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0038] See also Figures 1 to 8 The embodiment of the utility model is a flexible CNC tooling for a vehicle frame, comprising a CNC platform 1, a front suspension module 2, a rear suspension module 3 and a wheelbase positioning control mechanism. The front suspension module 2 is used to position the embedded components of the front suspension of the vehicle (not shown). The rear suspension module 3 is used to position the embedded components of the rear suspension of the vehicle (not shown). The CNC platform 1 is used to provide support and positioning for the front suspension module 2 and the rear suspension module 3. The front suspension module 2 is fixedly connected to one end of the CNC platform 1, that is, Figure 1 The rear suspension module 3 is slidably connected to the other end of the numerical control platform 1, that is, Figure 1The right end shown. The rear suspension module 3 can be close to or away from the front suspension module 2 to achieve chassis wheelbase adjustment to adapt to different models. Both the front suspension module 2 and the rear suspension module 3 include a flexible platform and a suspension positioning unit, a frame positioning unit and an adjustment mechanism that are detachably arranged on the corresponding flexible platform. The tooling is universalized and the production line is flexible, meeting the production requirements of various models, solving the problem that the traditional tooling corresponding to the model is eliminated due to the rapid change of product structure and the variety of suspension types, and the tooling is subsequently scrapped. It adapts to the manufacturing requirements of the diversified products of modern enterprises, minimizes the production land resources, and reduces the management and operation costs of enterprises. The wheelbase positioning control mechanism is used to accurately position the chassis wheelbase according to the production model, improve product accuracy and tooling automation level. The frame flexible CNC tooling adopts a flexible, modular and universal structural design form, which is used to complete the assembly welding of the automobile frame assembly and the positioning welding of the suspension embedded parts; the tooling structure is reasonably designed, has sufficient rigidity, can achieve precise positioning, fast clamping, prevent deformation, good performance, and stable and reliable operation. This tooling can meet the production requirements of 8-13 meter bus models and highway vehicle frame assemblies, covering nearly 80% of our products. For different suspension models, the production requirements can be met by quickly switching the suspension module, and the mold change time is less than 15 minutes.

[0039] In addition, according to some embodiments of the utility model, the flexible CNC tooling of the frame only includes the CNC platform 1, the front suspension module 2 and the rear suspension module 3, and does not include a wheelbase positioning control mechanism, that is, the chassis wheelbase is adjusted by manually pushing the rear suspension module 3 to slide along the CNC platform 1.

[0040] Specifically, according to some embodiments of the present invention, Figure 1 to Figure 2 and Figures 5 to 7 As shown, the flexible platform is a mesh plate with array-distributed mesh holes, such as the more conventional three-dimensional flexible platform on the existing market. The suspension positioning unit, the frame positioning unit and the adjustment mechanism are all connected to the corresponding mesh holes of the mesh plate through quick fasteners (preferably quick locking pins are used in the embodiment of the utility model). At the same time, it plays a role in positioning and locking, replacing the positioning pin positioning + bolt locking mechanism used in traditional tooling, reducing the use of parts, making the structure more compact, and adjusting more conveniently and quickly. The specific structure of the quick fastener is not particularly limited or described, and is a conventional quick locking pin, quick locker, axial quick locking device and other structures on the existing market.

[0041] It is also necessary to explain that according to some embodiments of the present invention, such as Figures 2 to 4As shown, the numerical control platform 1 includes a support bracket 11, linear guides 14, a positioning member 13, and a number of foundation-fixed horizontal adjustment 12 devices. Among them, the support bracket 11 is a rectangular frame structure, which can be welded by multiple square steels, for example. It can be an integral frame structure or composed of multiple square frames spliced together. [c Chen 1] The linear guides 14 are arranged along the length direction of the support bracket 11 at one end of the support bracket 11 where the rear suspension module 3 is provided, that is, at the right end as shown in Figure 3 shown. Specifically, there are two linear guides 14, which are relatively arranged on the two long sides of the support bracket 11. As shown in Figure 3 and Figure 4 shown, the positioning member 13 is a frame body, which is slidably fitted on the linear guides 14 through sliders 17. The flexible platform of the rear suspension module 3 is detachably fixed on the positioning member 13. Different suspension vehicle models can be adapted by replacing the rear suspension module 3 on the positioning member 13 without changing the main structure of the tooling, that is, the structure of the numerical control platform 1. A number of adjusting frames 12 are evenly distributed at the bottom of the support bracket 11 and can be used to adjust the levelness of the entire tooling. The specific structure of the adjusting frames 12 is not particularly described and limited, and it is a conventional horizontal adjustment device in the prior art. As an alternative embodiment, the numerical control platform 1 only includes the support bracket 11, the linear guides 14, and the positioning member 13, and does not include the adjusting frames 12.

[0042] Furthermore, as shown in Figures 2 to 4 shown, in order to facilitate positioning the rear suspension module 3 when it is adjusted to the required chassis wheelbase position, a limiting mechanism 16 for restricting the sliding of the rear suspension module 3 is provided at one end of the support bracket 11 away from the front suspension module 2. Specifically, the limiting mechanism 16 is an L-shaped positioning block (not shown), and a plurality of positioning holes are opened on the two positioning sub-blocks of the positioning block. Correspondingly, a plurality of positioning holes 18 are also arranged along the length direction at intervals on the two long sides of the support bracket 11. The positioning and locking of the limiting mechanism 16 with the support bracket 11 and the positioning member 13 are achieved through quick fasteners such as quick locking pins.

[0043] It should be noted that, as shown in Figure 3 to Figure 4 shown, the wheelbase positioning control mechanism includes a driving motor (not shown in the figure) provided on the positioning member 13, a driving gear 4 provided at the driving end of the driving motor, and a rack 15 provided on the support bracket 11 parallel to the linear guides 14 and meshing with the driving gear. Preferably, the driving motor includes a servo motor and a precision reduction gear. The driving motor is provided at the middle position of the rear end of the positioning member 13 as shown in Figure 3 shown, and the output shaft of the driving motor is vertically downward. The servo motor positions the chassis wheelbase more accurately, improving the product accuracy and the automation level of the tooling. As shown in Figure 3As shown, the rack 15 is distributed between the two linear guide rails 14 and fixed on the support bracket 11 and extends along the length direction of the support bracket 11. Preferably, the wheelbase positioning control mechanism also includes a PLC controller, a low-voltage electrical appliance and a touch screen (not shown). The PLC controller can control the start and stop of the drive motor to complete the positioning, and can also record and save the parameters of the wheelbase of the frame chassis so that the touch screen can be directly controlled and called during subsequent production and processing. At the same time, it provides traceability data for product defects and improves product quality.

[0044] It is worth mentioning that for the front suspension module 2, if Figure 5 As shown, it includes a flexible platform and a frame positioning unit, a suspension positioning unit and an adjustment mechanism arranged on the flexible platform. In order to facilitate distinction and description, the flexible platform, the frame positioning unit, the suspension positioning unit and the adjustment mechanism of the front suspension module 2 are described as the first flexible platform 21, the first frame positioning unit 23, the first suspension positioning unit 22 and the first adjustment mechanism 24 in the embodiment of the utility model. Among them, the first frame positioning unit 23 includes three groups, each group of the first frame positioning unit 23 includes two first frame positioning mechanisms arranged front and back relative to each other, one group of the first frame positioning units is arranged at the left end of the first flexible platform 21, and the other two groups of the first frame positioning units 23 are arranged on the first flexible platform 21 and close to the right end of the first flexible platform 21. The first adjustment mechanism 24 includes two groups, one group of the first adjustment mechanism 24 is distributed between the two first frame positioning units 23 at the left end, and the other group of the first adjustment mechanism 24 is distributed at the right end of the first flexible platform 21. The first suspension positioning unit 22 is arranged between the two first frame positioning units 23 at the right end.

[0045] Further, for the rear suspension module 3, if Figure 6 As shown, it includes a flexible platform and a frame positioning unit, a suspension positioning unit and an adjustment mechanism arranged on the flexible platform. In order to facilitate distinction and description, the flexible platform, the frame positioning unit, the suspension positioning unit and the adjustment mechanism of the rear suspension module are described as the second flexible platform 31, the second frame positioning unit 33, the second suspension positioning unit 32 and the second adjustment mechanism 34 in the embodiment of the utility model. Among them, the second adjustment mechanism 34 includes two groups, one group of second adjustment mechanisms 34 is distributed at the left end of the second flexible platform 31, and the other group of second adjustment mechanisms 34 is distributed at the right end of the second flexible platform 31. The second suspension positioning unit 32 includes two groups, each group of the second suspension positioning unit 32 includes two second suspension positioning mechanisms arranged front and back oppositely, and the two groups of second suspension positioning units 32 are arranged on the second flexible platform 31 at intervals and close to the two groups of second adjustment mechanisms 34 respectively. The second frame positioning unit 33 is arranged between the second adjustment mechanism 34 and the second suspension positioning unit 32 at the left end.

[0046] It should be noted that if Figures 5 and 6 and Figure 8 As shown, for the two groups of adjustment mechanisms, the two groups of adjustment mechanisms are a first adjustment mechanism that can be moved and adjusted along the length direction and height direction of the corresponding flexible platform and a second adjustment mechanism that can be moved and adjusted along the width direction and height direction of the corresponding flexible platform. The number of adjustment units in the two groups of adjustment mechanisms is two. Figure 5 As shown, the first adjustment mechanism in the first adjustment mechanism (for the convenience of description and distinction, described as the first adjustment mechanism in the embodiment of the utility model) is arranged at the right end of the first flexible platform 21, and the second adjustment mechanism (for the convenience of description and distinction, described as the second adjustment mechanism in the embodiment of the utility model) is arranged at the left end of the first flexible platform 21. Figure 6 As shown, the first adjustment mechanism in the second adjustment mechanism (for the convenience of description and distinction, described as the first and second adjustment mechanisms in the embodiment of the utility model) is arranged at the left end of the second flexible platform 31, and the second adjustment mechanism (for the convenience of description and distinction, described as the second and second adjustment mechanism in the embodiment of the utility model) is arranged at the right end of the second flexible platform 31.

[0047] In addition, as for the specific structures of the first adjustment mechanism and the second adjustment mechanism, the second first adjustment mechanism in the first adjustment mechanism will be taken as an example for explanation below. The structures of the first first adjustment mechanism in the first adjustment mechanism and the two groups of adjustment mechanisms in the second adjustment mechanism are similar and will not be further described or limited. Figure 8As shown, the second first adjustment mechanism includes a bottom plate 241 extending along the width direction of the first flexible platform 21, first supports 242 respectively arranged on the front and rear ends of the bottom plate 241, first slides 243 respectively slidably arranged on the first supports 242, first screw rods 244 respectively connected to the first slides 243 in a rolling manner, and first hand wheels 2413 at the outer ends of the first screw rods 244, second supports 248 respectively fixedly arranged on the first slides 243 and extending vertically, second slides 249 respectively slidably arranged on the second supports 248, and positioning blocks 2411 respectively fixedly arranged on the second slides 249. , a second screw rod 2410 which is respectively rollingly arranged on the second support 248 and extends vertically and rolls with the second slide 249, and a second hand wheel 2414 at the top of the second screw rod 2410, a first scale ruler 247 which is respectively arranged on the first support 242 and a second scale ruler 2412 which is arranged on the second support 248, and also includes two first supports 242 with a fixed seat 245 respectively at the inner ends thereof, the two fixed seats 245 are respectively fixed at the two ends of a hollow fixed shaft 246, and the inner ends of the two first screw rods 244 are respectively inserted into the two ends of the hollow fixed shaft 246. By rotating the first hand wheels 2413 at both ends, the corresponding first slides 243 can be driven to slide along the corresponding first supports 242 and drive the second supports 248 located on the first slides 243 to move, thereby adjusting the width between the two first slides 243. In addition, by rotating the second hand wheel 2414, the positioning block 2411 on the second slide 249 can be driven to move up and down, thereby adjusting the height between the two positioning blocks 2411. Since the first support 242 and the second support 248 are respectively provided with a first scale ruler 247 and a second scale ruler 2412, it is beneficial to complete the adjustment work quickly and accurately, thereby improving work efficiency.

[0048] In addition, for the frame positioning unit, a conventional frame positioning structure used for locating the suspension embedded components in the prior art can be selected. Figures 5 to 7 As shown, the frame positioning unit 23 of the front suspension module 2 is taken as an example for explanation. The frame positioning unit includes an inverted T-shaped base 232 and a positioning seat 231 fixed to the upper end of the base 232. The base 232 is provided with a locking hole (not shown) for positioning and locking a quick fastener such as a quick locking pin 233. The top of the positioning seat 231 is provided with a downwardly recessed positioning groove 234.

[0049] It should be noted that the specific structures of the suspension positioning unit 22 of the front suspension module 2 and the suspension positioning unit 32 of the rear suspension module 3 are not particularly described or limited, and they are conventional suspension positioning structures in existing vehicle frame tooling.

[0050] In summary, the flexible CNC tooling for the vehicle frame of the embodiment of the utility model reduces the floor space of the tooling workshop, improves the utilization rate of the workshop space, improves the level of tooling automation and intelligence, improves product manufacturing accuracy, and enhances the competitiveness of our company's products.

[0051] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A multi-angle processing flexible CNC tooling, characterized by: It comprises a front suspension module (2), a rear suspension module (3) and a numerical control platform (1); The front suspension module (2) is used to locate the embedded components of the front suspension of the automobile; The rear suspension module (3) is used to locate the embedded components of the rear suspension of the automobile; The numerical control platform (1) is used to provide support and positioning for the front suspension module (2) and the rear suspension module (3); The front suspension module (2) is fixedly connected to one end of the CNC platform (1), and the rear suspension module (3) is slidably connected to the other end of the CNC platform (1); The front suspension module (2) and the rear suspension module (3) both comprise a flexible platform and a suspension positioning unit, a frame positioning unit and an adjustment mechanism which are detachably arranged on the corresponding flexible platform.

2. The multi-angle processing flexible CNC tooling according to claim 1, characterized in that: The flexible platform is a mesh plate with mesh holes distributed in an array, and the suspension positioning unit, the frame positioning unit and the adjustment mechanism are all connected to the corresponding mesh holes of the mesh plate through quick fasteners.

3. The multi-angle processing flexible CNC tooling according to claim 1, characterized in that: The numerical control platform (1) comprises: a support bracket (11), a linear guide rail (14) and a positioning member (13); the linear guide rail (14) is arranged on one end of the support bracket (11) on which the rear suspension module (3) is arranged, extending along the length direction of the support bracket (11); The positioning member (13) is a frame body and is slidably engaged on the linear guide rail (14) via a slider (17); the flexible platform of the rear suspension module (3) is detachably fixed on the positioning member (13).

4. The multi-angle processing flexible CNC tooling according to claim 3 is characterized in that: The numerical control platform (1) further comprises: a plurality of adjustment frames (12) evenly distributed at the bottom of the support bracket (11).

5. The multi-angle processing flexible CNC tooling according to claim 3 is characterized in that: A limiting mechanism (16) for limiting the sliding of the rear suspension module (3) is provided on one end of the support bracket (11) away from the front suspension module (2).

6. The multi-angle processing flexible CNC tooling according to claim 3, characterized in that: The tooling also includes a wheelbase positioning control mechanism, which includes a drive motor disposed on the positioning member (13), a drive gear disposed on the drive end of the drive motor, and a rack (15) disposed on the support bracket (11) and parallel to the linear guide rail (14) and meshing with the drive gear.

7. The multi-angle processing flexible CNC tooling according to claim 6, characterized in that: The driving motor includes a servo motor and a reducer.

8. The multi-angle processing flexible CNC tooling according to claim 1, characterized in that: The adjustment mechanisms on the front suspension module (2) and the rear suspension module (3) are both in two groups, and the two groups of adjustment mechanisms are respectively arranged at the two ends of their corresponding flexible platforms; the suspension positioning unit and the frame positioning unit are arranged between the two corresponding groups of adjustment mechanisms.

9. The multi-angle processing flexible CNC tooling according to claim 1, characterized in that: The two groups of adjustment mechanisms are a first adjustment mechanism (24) that can be moved and adjusted along the length direction and height direction of the corresponding flexible platform, and a second adjustment mechanism (34) that can be moved and adjusted along the width direction and height direction of the corresponding flexible platform; the number of adjustment units in the two groups of adjustment mechanisms is two.

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