A turnover tool for automatic trimming of the glue joint of an automobile bumper

Abstract

The utility model discloses a kind of overturning tool for the automatic glue mouth pruning of automobile bumper, including support, the left and right sides of the both sides of support are fixedly installed with first linear motor, the rotor seat on the first linear motor is fixedly installed with first support, first position adjusting assembly is equipped on the first support, and fourth support is equipped on first position adjusting assembly, rotating assembly is equipped on the fourth support. The utility model belongs to the technical field of automobile bumper processing, the utility model aims at solving the poor adaptability problem that similar tool in prior art can exist. The technical effect reached is: the multidimensional adjustment of clamping plate is realized by first position adjusting assembly, the effect of realizing the adaptive clamping of different width, height and curvature specification automobile bumper, without disassembling and reforming tool, the production change efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive bumper processing technology, specifically to a flipping tool for automatic trimming of the rubber seals on automotive bumpers. Background Technology

[0002] The automatic rubber trimming and flipping fixture for automotive bumpers is a key piece of equipment connecting injection molding and subsequent finishing processes in the production of automotive bumpers. Its core function is to automatically remove rubber parts by precisely positioning and adjusting the mechanical structure in conjunction with trimming equipment, thereby reducing manual intervention and improving production efficiency.

[0003] However, existing tooling may have poor adaptability. Most tooling can only fix and flip car bumpers of a single model or similar size. When changing to bumper workpieces of different models or curvatures, the tooling needs to be disassembled and modified on a large scale, which not only increases the equipment debugging time, but also increases the production changeover cost. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A flipping fixture for automatically trimming the rubber seals of an automotive bumper includes a bracket. A first linear motor is fixedly mounted on each of the left and right sides of the bracket. A first bracket is fixedly mounted on the mover seat of each of the first linear motors. A first position adjustment component is provided on the first bracket, and a fourth bracket is provided on the first position adjustment component. A rotating component is provided on the fourth bracket. Support plates are fixedly mounted on both ends of the front side of the bracket. A second position adjustment component is provided on the support plates, and a sixth bracket is provided on the second position adjustment component. A suction cup fixing bracket is provided on the sixth bracket.

[0006] In a preferred embodiment of the automatic trimming fixture for automotive bumper rubber seals described in this utility model, the first position adjustment component includes:

[0007] The first servo motor is fixedly installed on the bottom of the opposite sides of both sets of the first brackets;

[0008] The second bracket is fixedly mounted on the piston rod of the first servo motor so that the height of the second bracket can be adjusted.

[0009] In a preferred embodiment of the automatic trimming fixture for automotive bumper rubber seals described in this utility model, the first position adjustment component further includes:

[0010] The first guide rail is disposed between the second bracket and the first bracket;

[0011] The second linear motor is fixedly mounted on the top of the second bracket.

[0012] In a preferred embodiment of the automatic trimming fixture for automotive bumper rubber seals described in this utility model, the first position adjustment component further includes:

[0013] The third bracket is fixedly mounted on the moving part of the second linear motor so that the front and rear positions of the third bracket can be adjusted.

[0014] A third linear motor is fixedly mounted on the top of a third bracket, and a fourth bracket is fixedly mounted on the moving part of the third linear motor so that the left and right positions of the fourth bracket can be adjusted.

[0015] As a preferred embodiment of the flipping fixture for automatically trimming the rubber seals of an automotive bumper according to this utility model, the rotating assembly includes:

[0016] The two sets of fourth brackets are rotatably connected to the shaft by bearings at their opposite ends;

[0017] Clamping plates are fixedly installed at the opposite ends of both sets of rotating shafts.

[0018] As a preferred embodiment of the flipping fixture for automatic trimming of the rubber seal of an automobile bumper as described in this utility model, servo motors are fixedly installed on the opposite ends of the two sets of fourth brackets, and the output shaft of the servo motor is fixedly connected to the rotating shaft.

[0019] In a preferred embodiment of the automatic trimming fixture for automotive bumper rubber seams described in this utility model, the second position adjustment component includes:

[0020] The second cylinder is fixedly installed on the outer side of both sets of support plates;

[0021] The fifth bracket is fixedly mounted on the piston rod of the second cylinder so that the left and right positions of the fifth bracket can be adjusted.

[0022] In a preferred embodiment of the automatic trimming fixture for automotive bumper rubber seals described in this utility model, the second position adjustment component further includes:

[0023] The second guide rail is located between the support plate and the fifth bracket;

[0024] The fifth linear motor is fixedly installed at the opposite ends of both sets of the fifth brackets, and the sixth bracket is fixedly installed on the moving part of the fifth linear motor so that the front and rear positions of the sixth bracket can be adjusted.

[0025] Compared with existing technologies:

[0026] The first position adjustment component enables multi-dimensional adjustment of the clamping plate, allowing for the adaptable clamping of car bumpers with different widths, heights, and curvatures without requiring disassembly or modification of the tooling, thus improving production changeover efficiency. Simultaneously, the second position adjustment component drives the suction cup fixing bracket to move in multiple dimensions, enabling precise alignment of the suction cup fixing bracket with the glue nozzles at different positions. This is suitable for bumpers with different curved surfaces, allowing for flexible flipping and conversion between the A and B sides of the product, preventing damage to the painted A side. Attached Figure Description

[0027] Figure 1 This is a front view schematic diagram of the three-dimensional structure of this utility model;

[0028] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0029] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point B;

[0030] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point C;

[0031] Figure 5 This is a front view schematic diagram of the structure of this utility model;

[0032] Figure 6 This is a side view of the structure of this utility model;

[0033] Figure 7 This is a top view of the structure of this utility model.

[0034] In the diagram: bracket 10, first linear motor 20, first bracket 21, first servo motor 30, second bracket 31, first guide rail 32, second linear motor 33, third bracket 34, third linear motor 35, fourth bracket 36, rotating shaft 40, clamping plate 41, servo motor 42, support plate 50, second cylinder 60, fifth bracket 61, second guide rail 62, fifth linear motor 63, sixth bracket 64, suction cup fixing bracket 70. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0036] This utility model provides a flipping fixture for automatically trimming the rubber seals of automotive bumpers. Please refer to [link / reference]. Figures 1-7The fixture includes a support 10, which serves as the overall load-bearing foundation. The support 10 is welded from Q235 low-carbon steel plate, a material with good weldability and sufficient mechanical strength to withstand the weight of the workpiece and the forces exerted by various moving components. The bottom of the support 10 is equipped with leveling feet, allowing for fine-tuning according to the flatness of the workshop floor to ensure the overall levelness of the fixture and provide a fundamental guarantee for subsequent positioning accuracy.

[0037] The first linear motors 20, symmetrically arranged on both sides of the bracket 10, are high-precision servo linear motors. Driven by a servo motor and ball screw transmission, they feature high positioning accuracy (±0.02mm repeatability) and fast response, precisely driving the first bracket 21 to move forward and backward, thus enabling loading and unloading operations. The first bracket 21 is made of 6061 aluminum alloy and is fixedly connected to the moving part of the first linear motor 20 using high-strength internal hexagon bolts. The connecting surfaces are milled to ensure flatness and avoid positioning errors caused by assembly gaps.

[0038] The first position adjustment component is used to achieve multi-dimensional adjustment of the clamp 41 in the height, front-to-back, and left-to-right directions to adapt to car bumpers of different sizes and curvatures. Its specific composition and implementation details are as follows:

[0039] The first servo motor 30 is a double-acting cylinder, the model of which is selected according to the required driving force. It is driven by compressed air, and the piston rod extension and retraction are achieved by controlling the air intake direction through a solenoid valve. The first servo motor 30 is fixed to the bottom end of the opposite side of the first bracket 21 via a cylinder flange. The piston rod end is connected to the second bracket 31 via a floating joint, which effectively compensates for assembly errors and avoids jamming during cylinder operation. The function of the first servo motor 30 is to drive the second bracket 31 to move vertically, thereby adjusting the height of the clamping plate 41 to accommodate bumper workpieces of different heights.

[0040] The second support 31 is also made of 6061 aluminum alloy. A first guide rail 32 is provided between it and the first support 21. The first guide rail 32 is a high-precision ball linear guide rail, consisting of a guide rail body and a slider. The guide rail body is fixed to the first support 21, and the slider is fixedly connected to the second support 31. The ball linear guide rail has the characteristics of low friction and smooth movement, providing precise guidance for the lifting and lowering of the second support 31, preventing deviation or wobbling during lifting and lowering, and ensuring the accuracy of height adjustment.

[0041] The second linear motor 33 is fixedly mounted on the top of the second bracket 31. Its model is matched with the first linear motor 20. The driving method is the same: servo motor driven ball screw transmission. Its function is to drive the third bracket 34 to move in the back-and-forth direction. The third bracket 34 is made of the same material as the first bracket 21. It is fixedly connected to the moving part of the second linear motor 33 by bolts. The connection surface is ground to ensure flatness.

[0042] The third linear motor 35 is fixedly mounted on the top of the third bracket 34. Its driving method is the same as the aforementioned linear motor. Its moving part is fixedly connected to the fourth bracket 36. Its function is to drive the fourth bracket 36 to make fine adjustments in the left-right direction, further improving the clamping and positioning accuracy of the clamping plate 41 on the bumper. The fourth bracket 36 is made of 45# steel to withstand the weight of the rotating components and the workpiece.

[0043] The rotating assembly is used to flip the bumper workpiece so that the glue marks on different sides of the workpiece can be trimmed. The specific implementation details are as follows:

[0044] The opposite ends of the two sets of fourth supports 36 are rotatably connected to the shaft 40 via deep groove ball bearings. Deep groove ball bearings are characterized by simple structure and high rotational accuracy, ensuring the smooth rotation of the shaft 40. The shaft 40 is made of 40Cr alloy steel, and its two ends are axially positioned by shaft shoulders and lock nuts to prevent axial movement during rotation.

[0045] A clamping plate 41 is fixedly installed at the opposite end of the rotating shaft 40. The clamping plate 41 is made of No. 20 steel, and its clamping surface is covered with a polyurethane buffer pad. The polyurethane material has good elasticity and wear resistance, which can provide sufficient clamping force to prevent the workpiece from slipping when clamping it, while avoiding scratches or indentations on the bumper surface. The clamping plate 41 and the rotating shaft 40 are connected by a key and locked with a set screw to ensure a firm connection and prevent relative slippage during rotation.

[0046] Servo motors 42 are fixedly mounted on the opposite ends of both sets of fourth supports 36. These servo motors 42 are equipped with brakes and are driven by a servo control system. They are fixedly connected to the rotating shaft 40 via couplings. The servo motors 42 feature controllable speed and precise positioning, enabling the rotating shaft 40 to rotate at any angle. The brake function locks the rotating shaft 40 in place after rotation, preventing workpiece rotation during trimming and improving the stability of the trimming process. The servo motors 42 are fixed to the fourth supports 36 via motor brackets made of welded steel plates to ensure stability during motor operation.

[0047] The second position adjustment component is used to drive the suction cup fixing bracket 70 to adjust its position, ensuring that the suction cup fixing bracket 70 can be accurately aligned with the rubber nozzle of the bumper, and directly complete the rubber nozzle trimming operation. The specific implementation details are as follows:

[0048] The support plate 50 is cut from Q235 steel plate and fixed to both ends of the front side of the bracket 10 by welding, for mounting the second position adjustment component. A second cylinder 60 is fixedly mounted on the outer side of both sets of support plates 50. The second cylinder 60 is a double-acting cylinder of the same model as the first servo motor 30, driven by compressed air and controlled by a solenoid valve. The piston rod of the second cylinder 60 is connected to the fifth bracket 61 via a floating joint, driving the fifth bracket 61 to move left and right, thus adjusting the left and right position of the suction cup fixing bracket 70.

[0049] The fifth bracket 61 is made of 6061 aluminum alloy. A second guide rail 62 is provided between the support plate 50 and the fifth bracket 61. The second guide rail 62 is the same model as the first guide rail 32, which provides precise guidance for the left and right movement of the fifth bracket 61 and ensures the left and right positioning accuracy of the suction cup fixing bracket 70. A suction cup is fixedly connected to the suction cup fixing bracket 70. The vacuum generator generates negative pressure to fix the product.

[0050] Both sets of fifth brackets 61 have a fifth linear motor 63 fixedly mounted on their opposite ends. The motors are driven by servo motors and ball screws, and their function is to drive the sixth bracket 64 to move in the front-back direction, thereby adjusting the front-back position of the suction cup mounting bracket 70. The sixth bracket 64 is made of aluminum alloy, and the suction cup mounting bracket 70 is fixed to it.

[0051] In practical use, those skilled in the art first control the actions of each driving component according to the specifications of the car bumper to be processed through the control system: First, control the first servo motor 30 to drive the second bracket 31 to rise and fall, adjusting the clamping plate 41 to a suitable height; then, drive the third bracket 34 and the fourth bracket 36 to move through the second linear motor 33 and the third linear motor 35 respectively, adjusting the clamping plate 41 to the position corresponding to the clamping position of the bumper; then, place the bumper workpiece between the two sets of clamping plates 41, control the clamping plates 41 to clamp the workpiece, and monitor the clamping force through a pressure sensor. The pressure sensor can be integrated into the clamping surface of the clamping plate 41 (not shown in the figure) to avoid excessive clamping force damaging the workpiece or insufficient clamping force causing the workpiece to loosen.

[0052] After the workpiece is fixed, the suction cup fixing bracket 70 is adjusted according to the position of the glue nozzle: the second cylinder 60 is controlled to drive the fifth bracket 61 to move left and right, and the fifth linear motor 63 is controlled to drive the sixth bracket 64 to move back and forth, so that the laser beam of the suction cup fixing bracket 70 is precisely aligned with the glue nozzle position. Then the suction cup fixing bracket 70 is started to trim the glue nozzle; when it is necessary to trim the glue nozzle on the other side of the workpiece, the servo motor 42 is controlled to drive the rotating shaft 40 to rotate, causing the workpiece to flip to a preset angle, and the servo motor 42 is braked and locked.

[0053] Finally, the first linear motor 20 can be controlled to drive the first bracket 21 to move in the front-back direction to achieve unloading.

[0054] Based on the above, the linear motors and servo motors for driving and positioning in this fixture—the first linear motor 20, the second linear motor 33, the third linear motor 35, the fifth linear motor 63, and the servo motor 42—are precisely controlled by a PLC controller through servo drivers to achieve multi-dimensional positioning of the clamping plate 41 and angle control of workpiece flipping, ensuring positioning and flipping accuracy. Furthermore, the suction cup fixing bracket for trimming execution—the suction cup fixing bracket 70—is controlled by the controller in conjunction with position detection signals for start / stop and power adjustment. When the second position adjustment component precisely aligns it with the glue nozzle, the controller receives a positioning confirmation signal and triggers laser trimming. In addition, the pneumatic auxiliary solenoid valves—the solenoid valves controlling the first servo motor 30 and the second cylinder 60—are controlled by the controller according to the positioning sequence, working in conjunction with the linear motors to complete coarse adjustments of the clamping plate height and the left / right position of the suction cup fixing bracket, achieving synergy between pneumatic and servo drives.

[0055] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flipping fixture for automatically trimming the rubber seals of an automotive bumper, comprising a bracket (10), characterized in that, The bracket (10) is fixedly installed on both sides of the left and right sides. The first linear motor (20) is fixedly installed on the moving part of the first linear motor (20). The first bracket (21) is provided with a first position adjustment component and a fourth bracket (36) is provided on the first position adjustment component. The fourth bracket (36) is provided with a rotating component. The bracket (10) is fixedly installed on both ends of the front side of the bracket (10). The support plate (50) is provided with a second position adjustment component and a sixth bracket (64) is provided on the second position adjustment component. The sixth bracket (64) is provided with a suction cup fixing bracket (70).

2. The flipping fixture for automatic trimming of rubber seals on an automotive bumper according to claim 1, characterized in that, The first position adjustment component includes: The first servo motor (30) is fixedly installed on the bottom of the opposite sides of the two sets of the first brackets (21). The second bracket (31) is fixedly mounted on the piston rod of the first servo motor (30) so that the height of the second bracket (31) can be adjusted.

3. The flipping fixture for automatic trimming of rubber seals on an automotive bumper according to claim 2, characterized in that, The first position adjustment component further includes: The first guide rail (32) is disposed between the second bracket (31) and the first bracket (21); The second linear motor (33) is fixedly mounted on the top of the second bracket (31).

4. The flipping fixture for automatic trimming of rubber seals on an automotive bumper according to claim 3, characterized in that, The first position adjustment component further includes: The third bracket (34) is fixedly mounted on the moving part of the second linear motor (33) so that the front and rear positions of the third bracket (34) can be adjusted. The third linear motor (35) is fixedly mounted on the top of the third bracket (34), and the fourth bracket (36) is fixedly mounted on the moving part of the third linear motor (35) so that the left and right positions of the fourth bracket (36) can be adjusted.

5. The flipping fixture for automatic trimming of rubber seals on an automotive bumper according to claim 4, characterized in that, The rotating component includes: The two sets of fourth brackets (36) are rotatably connected to the shaft (40) by bearings at their opposite ends. Clamping plates (41) are fixedly installed on the opposite ends of the two sets of rotating shafts (40).

6. The flipping fixture for automatic trimming of rubber seals on an automotive bumper according to claim 5, characterized in that, Servo motors (42) are fixedly installed on the opposite ends of the two sets of fourth brackets (36), and the output shaft of the servo motor (42) is fixedly connected to the rotating shaft (40).

7. The flipping fixture for automatic trimming of rubber seals on an automotive bumper according to claim 1, characterized in that, The second position adjustment component includes: The second cylinder (60) is fixedly installed on the outer side of both sets of support plates (50); The fifth bracket (61) is fixedly mounted on the piston rod of the second cylinder (60) so that the left and right positions of the fifth bracket (61) can be adjusted.

8. The flipping fixture for automatic trimming of rubber seals on an automotive bumper according to claim 7, characterized in that, The second position adjustment component further includes: The second guide rail (62) is located between the support plate (50) and the fifth bracket (61); The fifth linear motor (63) is fixedly installed on the opposite ends of the two sets of fifth brackets (61), and the sixth bracket (64) is fixedly installed on the moving part of the fifth linear motor (63) so that the front and rear positions of the sixth bracket (64) can be adjusted.

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