Guide device for rolling forming of rear bumper of automobile

Abstract

The utility model belongs to the technical field of roller presses, and particularly relates to an automobile rear bumper rolling forming guiding device which comprises two supporting seats, the opposite sides of the two supporting seats are rotationally connected with an upper rolling shaft and a lower rolling shaft respectively, and the lower rolling shaft is in transmission connection with driving equipment. The upper rolling shaft and the lower rolling shaft are in transmission connection through a gear assembly; driver equipment drives the lower rolling shaft to rotate, the lower rolling shaft drives the upper rolling shaft to rotate for rolling through the gear assembly, bumpers are placed in different forming grooves, the use requirements of bumper compression rollers of various sizes are met, the gear assembly can be protected by covering the protective cover, and the bumper compression rollers are convenient to use. And dust or small metal objects are prevented from entering the gear assembly to abrade the gear assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of roll presses, in particular to a guiding device for roll forming of automobile rear bumpers. Background Technique

[0002] In the field of bumper manufacturing, rolling is a relatively common processing method internationally. During the rolling process of bumpers, in the ordinary section, only the lower roller is needed to drive the material plate, and the upper roller follows. However, for some special forming sections, relying solely on the drive of the lower roller is not enough. Moreover, the drive mechanism of the roll press uses a gear mechanism, and the gear mechanism is used exposed for a long time, and the possibility of being stuck and damaged by small metal scraps is extremely high.

[0003] The existing Chinese patent with the publication number CN217252047U discloses a bumper roll press, which includes a support base plate; a first bracket and a second bracket, the first bracket and the second bracket are arranged in parallel at intervals on the support base plate; a first roller, rotatably arranged between the first bracket and the second bracket; a second roller, arranged in parallel at intervals with the first roller and rotatably arranged between the first bracket and the second bracket; a drive mechanism, arranged on the first bracket and in transmission connection with both the first roller and the second roller, capable of driving the first roller and the second roller to rotate in opposite rotation directions; a protective cover, the protective cover covers the drive mechanism and is connected to the first bracket. The utility model can realize the simultaneous rotation of the first roller and the second roller to transport the product, and effectively protect the drive mechanism by using the protective cover.

[0004] In view of the above and the existing related technologies, the inventor believes that there are often the following defects: the device drives and connects the two rollers through a gear drive mechanism, and adjusts the distance between the two rollers through an adjustment mechanism to be suitable for bumper rollers of different sizes. When the distance between the rollers changes, the size of the gear drive mechanism also needs to be replaced synchronously, which is relatively inconvenient to use and needs to be improved; therefore, a guiding device for roll forming of automobile rear bumpers is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a guiding device for roll forming of automobile rear bumpers.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A roll forming guiding device for an automobile rear bumper of the utility model includes two support seats. On the opposite sides of the two support seats, an upper roller shaft and a lower roller shaft are respectively rotatably connected. The lower roller shaft is in transmission connection with a driving device. The upper roller shaft and the lower roller shaft are in transmission connection through a gear assembly. The gear assembly includes two meshing gears, and the two gears are respectively fixedly installed on the upper roller shaft and the lower roller shaft. A protective assembly is installed outside the gear assembly. The protective assembly includes two protective covers. The bottom ends of the two protective covers are rotatably connected to the support seats through shafts, and installation openings corresponding to the lower roller shaft are formed on the surfaces of the two protective covers. Press rollers are respectively fixedly connected to the surfaces of the upper roller shaft and the lower roller shaft. The press rollers are in the shape of a pagoda and are formed with multiple sets of forming grooves with different sizes. When the bumper roll press works, the driving device drives the lower roller shaft to rotate. Through the gear assembly, the lower roller shaft drives the upper roller shaft to rotate for rolling. By placing the bumper in different forming grooves, it is suitable for the use requirements of press rollers of various sizes of bumpers. By covering the protective covers, the gear assembly can be protected to prevent dust or small metal objects from entering the gear assembly and causing wear to the gear assembly.

[0007] Preferably, fixing ears one and two are respectively fixedly connected to the tops of the two protective covers, and corresponding connection holes are formed at the centers of the fixing ears one and two.

[0008] Preferably, a bolt is inserted into the connection hole. After passing the bolt through the two connection holes in sequence and connecting it to the threaded hole, the two protective covers can be synchronously covered and fixed. The installation opening is used for the lower roller shaft to pass through, and the sealing gasket seals the installation opening to reduce the gap between the installation hole and the lower roller shaft to prevent dust and metal objects from entering through the gap, further improving the protection effect on the gear assembly, and can slow down the volatilization of the lubricating oil in the gear assembly. By removing the bolt, the protective cover can be opened for maintenance or adding lubricating oil.

[0009] Preferably, the protective assembly further includes a threaded hole, and the threaded hole is formed on the surface of the support seat.

[0010] Preferably, a sealing gasket is fixedly connected inside the installation opening.

[0011] Preferably, a guiding assembly is installed outside the upper roller shaft and the lower roller shaft. The guiding assembly includes a guiding frame one, a guiding frame two and two lead screws. The two ends of the two lead screws are respectively rotatably connected to the support seats. By driving the lead screws to rotate through a driver, the positions of the guiding frame one and the guiding frame two can be respectively adjusted. According to the width of the workpiece, the distance between the guiding frame one and the guiding frame two is adjusted, so as to guide the workpiece and avoid the workpiece offsetting during rolling and affecting the rolling effect.

[0012] Preferably, one of the lead screws passes through the guide frame and is threadedly connected to the second guide frame, and the other lead screw passes through the second guide frame and is threadedly connected to the first guide frame.

[0013] Preferably, driving devices are fixedly connected to the upper and lower side walls of the support base respectively, and the driving ends of the two driving devices respectively pass through the support base and are fixedly connected to one ends of the two lead screws.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, the driving device drives the lower roller to rotate. Through the gear assembly, the lower roller drives the upper roller to rotate for rolling. By placing the bumper in different forming grooves, it is applicable to the rolling requirements of bumpers of various sizes. By covering the protective cover, the gear assembly can be protected to prevent dust or small metal objects from entering the gear assembly and causing wear to the gear assembly. Compared with the prior art, when rolling workpieces of different sizes, the normal use of the gear assembly will not be affected.

[0016] 2. In the present utility model, the driving device drives the lead screw to rotate, and the positions of the first guide frame and the second guide frame can be adjusted respectively. The distance between the first guide frame and the second guide frame is adjusted according to the width of the workpiece, so as to guide the workpiece and avoid the deviation of the workpiece during rolling, which affects the rolling effect. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 For the present utility model Figure 1 Side view;

[0020] Figure 3 It is a schematic diagram of the structure of the protection component of the present utility model;

[0021] Figure 4 For the present utility model Figure 3 Schematic diagram of structure A;

[0022] Figure 5 It is a schematic diagram of the structure of the guiding component of the present utility model.

[0023] In the figure: 1, support base; 2, upper roller; 3, lower roller; 4, gear assembly; 5, protection assembly; 51, protective cover; 52, mounting opening; 53, first fixing ear; 54, second fixing ear; 55, connection hole; 56, bolt; 57, threaded hole; 6, pressing roller; 7, guiding assembly; 71, first guiding frame; 72, lead screw; 73, second guiding frame; 8, driver. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] Please refer to Figures 1-4 As shown, an automotive rear bumper roll forming guiding device includes two support bases 1. An upper roller 2 and a lower roller 3 are respectively rotatably connected to opposite sides of the two support bases 1. The lower roller 3 is in transmission connection with a driving device. The upper roller 2 and the lower roller 3 are in transmission connection through a gear assembly 4. A protection assembly 5 is installed outside the gear assembly 4. The protection assembly 5 includes two protective covers 51. The bottoms of the two protective covers 51 are rotatably connected to the support base 1 through shafts, and mounting openings 52 corresponding to the lower roller 3 are formed on the surfaces of the two protective covers 51. Pressing rollers 6 are respectively fixedly connected to the surfaces of the upper roller 2 and the lower roller 3. The pressing rollers 6 are in the shape of a pagoda and are formed with multiple forming grooves with different sizes. When the bumper rolling press works, the driver 8 drives the lower roller 3 to rotate. Through the gear assembly 4, the lower roller 3 drives the upper roller 2 to rotate for rolling. By placing the bumper in different forming grooves, it meets the usage requirements of pressing rollers 6 for bumpers of various sizes. By covering the protective covers 51, the gear assembly 4 can be protected to prevent dust or small metal objects from entering the gear assembly 4 and causing wear to the gear assembly 4.

[0027] First fixing ears 53 and second fixing ears 54 are respectively fixedly connected to the tops of the two protective covers 51, and corresponding connection holes 55 are formed at the centers of the first fixing ears 53 and the second fixing ears 54.

[0028] A bolt 56 is inserted into the connection hole 55. After passing the bolt 56 through two connection holes 55 in sequence, it is connected to the threaded hole 57, so that the two protective covers 51 can be covered and fixed synchronously. The installation port 52 is used for the lower roller 3 to pass through, and the gasket seals the installation port 52, reducing the gap between the installation hole and the lower roller shaft to prevent dust and metal objects from entering through the gap, further improving the protection effect on the gear assembly 4, and can slow down the volatilization of the lubricating oil in the gear assembly 4. By removing the bolt 56, the protective cover 51 can be opened for maintenance or adding lubricating oil.

[0029] The protection component 5 further includes a threaded hole 57, and the threaded hole 57 is opened on the surface of the support seat 1.

[0030] A gasket is fixedly connected inside the installation port 52.

[0031] Embodiment 2

[0032] Comparing with Embodiment 1, please refer to Figure 5 As shown, the present utility model provides another implementation manner. A guiding component 7 is installed outside the upper roller 2 and the lower roller 3. The guiding component 7 includes a guiding frame one 71, a guiding frame two 73 and two lead screws 72. The two ends of the two lead screws 72 are respectively rotatably connected to the support seat 1. By driving the lead screws 72 to rotate through the driver 8, the positions of the guiding frame one 71 and the guiding frame two 73 can be adjusted respectively, and the distance between the guiding frame one 71 and the guiding frame two 73 can be adjusted according to the width of the workpiece, so as to guide the workpiece and avoid the workpiece from shifting when pressing the roller 6, which affects the effect of the pressing roller 6.

[0033] One of the lead screws 72 passes through the guiding frame one 71 and is threadedly connected to the guiding frame two 73, and the other lead screw 72 passes through the guiding frame two 73 and is threadedly connected to the guiding frame one 71.

[0034] The upper and lower side walls of the support seat 1 are respectively fixedly connected with a driver 8, and the driving ends of the two drivers 8 respectively penetrate through the support seat 1 and are fixedly connected with one end of the two lead screws 72.

[0035] Working principle: When the bumper roller press works, the driver 8 drives the lower roller 3 to rotate. Through the gear assembly 4, the lower roller 3 drives the upper roller 2 to rotate for rolling. By placing the bumper in different forming grooves, it is applicable to the use requirements of bumper pressing rollers 6 of various sizes. By covering the protective cover 51, the gear assembly 4 can be protected to prevent dust or small metal objects from entering the gear assembly 4 and causing wear to the gear assembly 4.

[0036] The bolt 56 is successively passed through the two connecting holes 55 and then connected to the threaded hole 57, so as to synchronously cover and fix the two protective covers 51. The installation opening 52 is used for the lower roller 3 to pass through, and the gasket seals the installation opening 52, reducing the gap between the installation hole and the lower roller shaft to prevent dust and metal objects from entering through the gap, further improving the protection effect on the gear assembly 4 and slowing down the volatilization of the lubricating oil in the gear assembly 4. By removing the bolt 56, the protective cover 51 can be opened for maintenance or adding lubricating oil.

[0037] By driving the lead screw 72 to rotate through the driver 8, the positions of the first guide frame 71 and the second guide frame 73 can be adjusted respectively, and the distance between the first guide frame 71 and the second guide frame 73 can be adjusted according to the width of the workpiece, so as to guide the workpiece and prevent the workpiece from shifting to the adjacent forming groove when passing through the pressure roller 6, thus affecting the effect of the pressure roller 6.

[0038] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A roll forming guide device for a rear bumper of an automobile, comprising two support seats (1), characterized in that: An upper roller (2) and a lower roller (3) are rotatably connected to opposite sides of the two support seats (1), and the lower roller (3) is transmission-connected to a driving device. The upper roller (2) and the lower roller (3) are transmission-connected via a gear assembly (4). A protective assembly (5) is installed outside the gear assembly (4), and the protective assembly (5) comprises two protective covers (51). The bottom ends of the two protective covers (51) are rotationally connected to the support seat (1) via shafts, and mounting openings (52) are provided on the surfaces of the two protective covers (51) corresponding to the lower roller (3). Pressing rollers (6) are fixedly connected to the surfaces of the upper roller (2) and the lower roller (3), and the pressing rollers (6) are arranged in a pagoda shape to form a plurality of groups of forming grooves of different sizes.

2. The roll forming guide device for automobile rear bumper according to claim 1, characterized in that: A first fixing ear (53) and a second fixing ear (54) are respectively fixedly connected to the tops of the two protective covers (51), and corresponding connection holes (55) are provided at the centers of the first fixing ear (53) and the second fixing ear (54).

3. The roll forming guide device for automobile rear bumper according to claim 1, characterized in that: A bolt (56) is inserted into the connection hole (55).

4. The roll forming guide device for automobile rear bumper according to claim 1, characterized in that: The protection component (5) further comprises a threaded hole (57), wherein the threaded hole (57) is formed on the surface of the support seat (1).

5. The roll forming guide device for automobile rear bumper according to claim 1, characterized in that: A sealing gasket is fixedly connected inside the installation opening (52).

6. The roll forming guide device for automobile rear bumper according to claim 1, characterized in that: A guide assembly (7) is installed outside the upper roller (2) and the lower roller (3), and the guide assembly (7) comprises a guide frame 1 (71), a guide frame 2 (73) and two lead screws (72), and the two ends of the two lead screws (72) are respectively rotatably connected to the support seat (1).

7. The roll forming guide device for automobile rear bumper according to claim 6, characterized in that: One of the lead screws (72) passes through the first guide frame (71) and is threadedly connected to the second guide frame (73), and the other lead screw (72) passes through the second guide frame (73) and is threadedly connected to the first guide frame (71).

8. The roll forming guide device for automobile rear bumper according to claim 6, characterized in that: The upper and lower side walls of the support seat (1) are respectively fixedly connected with drivers (8), and the driving ends of the two drivers (8) respectively penetrate the support seat (1) and are fixedly connected to one end of the two lead screws (72).

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