Pneumatic flanging device

Abstract

The present invention discloses a pneumatic flanging device, comprising: a frame, a workbench is provided at the upper end, and a cylinder is provided at the lower end; a pressure head is rotatably provided at the upper end of the workbench, and a base is fixedly provided at the lower end; rollers are rotatably provided at both sides of the base; two ends of the two rollers are connected to the cylinder through a transmission device; and a pressure block corresponding to the flanging edge of the tank cover is provided in the middle of the two rollers. The present invention has a novel structure, stable operation, and simple operation. The oil tank to be processed is stably clamped and limited up and down by the pressure head and the base, and is easy to load and unload. The cylinder can cooperate with the transmission device to link with the roller, thereby driving the pressure block on the roller to perform accurate and efficient flipping operation on the processed part of the oil tank, with high operating efficiency, easy control of the operating process, and high degree of automation.

Description

Technical Field

[0001] The invention relates to the field of oil tank processing, in particular to a pneumatic flanging device. Background Art

[0002] Flanging is an important process in sheet metal processing of automotive power steering oil tanks. Flanging refers to a forming method that uses the function of a mold to form a straight wall or flange with a certain angle along a closed or unclosed curved edge on the flat or curved surface of the blank. Flanging is a type of stamping process. There are many types of flanging, and the classification methods are also different. According to the deformation properties, it can be divided into elongation flanging and compression flanging.

[0003] At present, the can-making industry mostly uses hydraulic presses, high-jaw punches, desktop punches and other equipment to perform flanging operations on automobile power steering oil tanks. These equipment have the defects of high energy consumption, low efficiency, high failure rate, narrow equipment adaptability, high investment, and high scrap rate. At the same time, since it is necessary to flip and buckle the folded edge of the tank cover of the automobile power steering oil tank, the existing tooling fixtures cannot achieve the improved flanging requirements of the tank cover. Most of them are manually flanging, and the force during the flanging process is unstable. The flanging edge is not smooth enough and is relatively rough, which is easy to produce defective products. Summary of the invention

[0004] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages which will be described hereinafter.

[0005] In order to achieve these purposes and other advantages according to the present invention, a pneumatic flanging device is provided, comprising: a frame, a workbench is provided at the upper end, and a cylinder is provided at the lower end; a pressure head is rotatably provided at the upper end of the workbench, and a base is fixedly provided at the lower end; rollers are rotatably provided on both sides of the base; two ends of the two rollers are connected to the cylinder through a transmission device; and a pressure block corresponding to the flanging edge of the can cover is provided in the middle of the two rollers.

[0006] Preferably, in the above technical solution, four supporting legs are arranged at the lower end of the frame; four connecting rods are transversely fixedly arranged between the four supporting legs; two supporting rods are fixedly connected to two of the connecting rods; and both sides of the cylinder body are fixedly connected to the two supporting rods.

[0007] Preferably, a support column is fixedly provided on the upper end of the workbench; the upper end of the support column is detachably connected to a hinge seat of a right-angled trapezoidal structure; the lower end of the hinge seat is a right-angled waist edge, and the upper end is an inclined waist edge; the upper bottom edge of the hinge seat is rotatably provided with a pull rod through a pin; the lower bottom edge of the hinge seat is rotatably provided with an L-shaped pressure rod through a pin; a connecting block is rotatably connected between the pull rod and the L-shaped pressure rod through two pins; the shorter end of the L-shaped pressure rod corresponds to the top of the oil tank body.

[0008] Preferably, the transmission device includes a telescopic plate; the lower end of the telescopic plate is fixedly connected to the piston rod of the cylinder, and four racks are fixedly provided on the upper end; gears matching the four racks are fixedly provided at both ends of the two rollers; four gears are meshed and connected through the four racks respectively; four sliding rods are provided at the lower end of the workbench; the upper end of the telescopic plate is sleeved in the four sliding rods through four sliding holes to form a sliding connection.

[0009] Preferably, two mutually parallel limit rods are fixedly arranged on the workbench; the two ends of the two limit rods are fixedly connected by connecting blocks respectively; corresponding trapezoidal grooves are arranged in the middle of the two limit rods; the base is fixedly arranged between the two trapezoidal grooves; a limit hole matching the protruding pipe mouth at the lower end of the tank cover is opened on the base; and a triangular block is arranged on the base.

[0010] Preferably, two cover plates are provided at the upper end of the workbench; and two storage cavities for protecting the four gears are respectively provided on the two cover plates.

[0011] Preferably, a torsion block is fixedly provided in the middle of the two rollers; the rollers together with the torsion block are in a convex structure as a whole; the pressure block is fixedly provided on the torsion block; and a groove is provided under the torsion block.

[0012] Preferably, the contact surfaces between the two pressing blocks and the folded edges of the can cover are in a certain concave arc.

[0013] Preferably, it also includes a rotating device; the rotating device includes a rotating motor and a support column arranged inside the workbench; the rotating motor and the support column are symmetrically arranged about the central axis of the cylinder; a driving wheel is fixedly connected to the output shaft of the rotating motor; a driven wheel is connected to the driving wheel through a belt; the middle part of the driven wheel is rotatably arranged on the support column through a bearing; a torsion ring is meshingly connected to the middle part of the belt; the inner ring of the torsion ring corresponds to the protruding pipe mouth at the lower end of the tank cover; a plurality of torsion bars distributed in a cross are fixedly arranged on the inner ring of the torsion ring; rubber heads are arranged at the ends of the plurality of torsion bars; a spherical cavity is arranged at the end of the pressure head; a pressure ball is rotatably arranged in the spherical cavity; the pressure ball is fixedly connected to a pressure plate after a part of it leaks out from the opening at the lower end of the spherical cavity. The present invention includes at least the following beneficial effects:

[0014] The present invention has a novel structure, stable operation, and simple operation. The oil tank to be processed can be stably clamped and limited in the upper and lower directions by the pressure head and the base, and loading and unloading are convenient. The cylinder can cooperate with the transmission device to link with the roller, thereby driving the pressure block on the roller to perform accurate and efficient flipping operations on the processed part of the oil tank. The operating efficiency is high, the operating process is easy to control, and the degree of automation is high.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the internal structure of the workbench of the present invention;

[0018] Figure 3 It is a schematic diagram of the pressure head of the present invention;

[0019] Figure 4 It is a schematic diagram of the upper plane of the can cover of the present invention installed on the base;

[0020] Figure 5 It is a cross-sectional schematic diagram of the tank cover of the present invention being installed on the base;

[0021] Figure 6 A schematic diagram of a lower plane of the tank cover of the present invention installed on a base;

[0022] Figure 7 A schematic diagram of a roller of the present invention;

[0023] Figure 8 is a side cross-sectional view of the rotating device of the present invention;

[0024] Fig. 9It is a top cross-sectional view of the rotating device of the present invention; DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0026] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0027] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, in the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0030] Figure 1-5 An implementation form of the present invention is shown, including:

[0031] The frame 1 is provided with a workbench 11 at the upper end and a cylinder 12 at the lower end; a pressure head 13 is rotatably provided at the upper end of the workbench 11, and a base 14 is fixedly provided at the lower end; rollers 15 are rotatably provided at both sides of the base 14; two ends of the two rollers 15 are connected to the cylinder 12 through a transmission device; a pressure block 17 corresponding to the folded edge 21 of the can cover 20 is provided in the middle of the two rollers 15.

[0032] Working principle:

[0033] When using the present invention, we first install the tank cover 20 of the automobile power steering oil tank together with the tank body 22 into the base 14 of the workbench 11, and rotate the pressure head 13 to press the top of the tank body 22; open the cylinder 12, the piston rod of the cylinder 12 begins to extend, and the axial movement of the piston rod of the cylinder 12 is converted into a circumferential rotation acting on the two rollers 15 through the transmission device. At this time, as the two rollers 15 rotate in the positive direction, the two pressing blocks 17 are driven to press the folded edge 21 of the tank cover 20 toward the center direction until the folded edge 21 is turned over and pressed into the groove 23 on the outer wall of the tank body 22, and the tank cover is closed. The buckling and pressing of 20 and the tank body 22 meet our processing needs; retract the piston rod of the cylinder 12, at this time the two rollers 15 start to rotate in the opposite direction, and the two pressing blocks 17 immediately disengage from the folded edges 21 and then return to the initial position; pull up the pressure head 13, rotate the tank cover 20 and the tank body 22 of the oil tank, align the next pair of unfastened folded edges 21 with the two pressing blocks 17, and then rotate the pressure head again to press down the top of the tank body 22. After this cyclic operation, all the folded edges 21 on the tank cover 20 are pressed into the grooves 23 on the outer wall of the tank body 22, and then remove the entire oil tank, and the processing is completed.

[0034] In this technical solution, the frame 1 can maintain the overall support stability of the device; the workbench 11 is convenient for operators to load and unload the oil tanks that need to be processed from above; the cylinder 12 is arranged as a whole inside the lower end of the frame 1, saving configuration space and ensuring that the overall center of gravity of the frame 1 is more stable; the rotatable pressure head 13 is convenient for operators to manually press and pull up the pressure head 13; the base 14 can be adapted to the embedded installation of the cylindrical oil tank to ensure that the tank cover 20 and the tank body 22 of the oil tank are more stable during the flanging operation; the two rollers 15 are the main power components for pressing the flanging edge 21. Through the rotation of the two rollers 15 and the cooperation of the two pressure blocks 17, the pressing of the flanging edge 21 is directly realized, with significant effect and high operating efficiency; the transmission device is used to convert the axial movement of the piston rod of the cylinder 12 into the circumferential rotation of the two rollers 15, with high transmission efficiency and strong controllability, which improves the overall applicability of the device.

[0035] In the above technical solution, four supporting feet 101 are arranged at the lower end of the frame 1; four connecting rods 102 are transversely fixedly arranged between the four supporting feet 101; two supporting rods 103 are fixedly connected to two connecting rods 102; and the two sides of the cylinder body of the cylinder 12 are fixedly connected to the two supporting rods 103. The advantage of such arrangement is that the four supporting feet 101 ensure the stability of the overall structure of the frame 1, the four transverse connecting rods 102 can be used to fix the four supporting feet 101, and the two supporting rods 103 can be used to suspend and support the cylinder body of the cylinder 12 to ensure stable support.

[0036] In the above technical scheme, a support column 131 is fixedly provided at the upper end of the workbench 11; a hinge seat 132 of a right-angled trapezoidal structure is detachably connected to the upper end of the support column 131; the lower end of the hinge seat 132 is a right-angled waist edge, and the upper end is an inclined waist edge; a pull rod 133 is rotatably provided on the upper bottom edge of the hinge seat 132 through a pin; an L-shaped pressure rod 134 is rotatably provided on the lower bottom edge of the hinge seat 132 through a pin; a connecting block 135 is rotatably connected between the pull rod 133 and the L-shaped pressure rod 134 through two pins; the shorter end of the L-shaped pressure rod 134 corresponds to the top of the oil tank body 22. The advantage of such a configuration is that the support column 131 is used to support the various components of the entire pressure head 13 and extends a certain distance above the workbench 11, thus providing a certain rotational working space for the pressure head 13; precisely because the hinge seat 132 is an inverted right-angled trapezoidal structure, the hinge points of the pull rod 133 and the L-shaped pressure rod 134 can be located respectively on the upper bottom edge of the lower left corner and the upper bottom edge of the lower right corner of the hinge seat 132, and in conjunction with the mutually hinged connecting blocks 135 for compound rotation, such an operation can be achieved, that is, the pull rod 133 can be manually swung circumferentially, and the smaller end of the L-shaped pressure rod 134 can be swung circumferentially at the same time, thereby realizing the function of pressing or disengaging the upper end surface of the oil tank body 22, which is convenient, fast and easy to operate.

[0037] In the above technical solution, the transmission device includes a telescopic plate 161; the lower end of the telescopic plate 161 is fixedly connected to the piston rod of the cylinder 12, and four racks 162 are fixedly provided on the upper end; gears 163 matching the four racks 162 are fixedly provided at both ends of the two rollers 15; the four gears 163 are meshed and connected with each other through the four racks 162; four sliding rods 164 are provided at the lower end of the workbench 11; the upper end of the telescopic plate 161 is sleeved in the four sliding rods 164 through four sliding holes 165 to form a sliding connection. The advantage of such arrangement is that the cylinder 12 can drive the telescopic plate 161 to achieve an overall rise, making the movement more uniform and stable; the four racks 162 are arranged at the four corners of the telescopic plate 161, and as the telescopic plate 161 rises, the four racks 162 will mesh and drive the four gears 163 to rotate, thereby realizing the rotation of the two rollers 15, the entire transmission operation is uniform, the transmission efficiency is high, and the stability of the rotation and pressing operation of the rollers 15 is ensured; the telescopic plate 161 is sleeved on the four sliding rods 164 through the four sliding holes 165 to perform telescopic sliding, which plays a role of a lateral limit, making the sliding operation of the telescopic plate 161 more stable.

[0038] In the above technical solution, two mutually parallel limiting rods 141 are fixedly arranged on the workbench 11; the two ends of the two limiting rods 141 are fixedly connected by connecting blocks 142 respectively; corresponding trapezoidal grooves 143 are arranged in the middle of the two limiting rods 141; the base 14 is fixedly arranged between the two trapezoidal grooves 143; a limiting hole 144 matching the protruding pipe mouth 24 at the lower end of the tank cover 20 is opened on the base 14; and a triangular block 145 is arranged on the base 14. The advantage of such a configuration is that the two limiting rods 141 are arranged in parallel and at intervals, and the two trapezoidal grooves 143 in the middle can be spliced ​​into an integral annular groove, which can play a role of a stable limiting support for the tank cover 20 and the lower part of the tank body 22 that need to be processed, and at the same time facilitates the loading and unloading of the oil tank as a whole; the limiting hole 144 can embed a part of the protruding pipe mouth 24 at the lower end of the tank cover 20, and at the same time cooperate with the triangular block 145 to support the tank cover 20 upward, so that the pressing block 17 on the roller 15 can be better aligned with the folded edge 21 of the tank cover 20, so that the folded edge 21 of the tank cover 20 can be accurately buckled into the groove 23 of the tank body 22, thereby improving the processing accuracy.

[0039] In the above technical solution, two cover plates 104 are arranged on the upper end of the workbench 11; two storage chambers 105 for protecting the four gears 163 are respectively arranged on the two cover plates 104. The advantage of such arrangement is that the two cover plates 104 strengthen the sealing and stability of the upper end surface of the entire workbench 11; the four storage chambers 105 can accommodate the four gears 163 in rotation, play a certain role in dust protection, and at the same time, can also prevent the exposed gears from causing harm to the operator when rotating.

[0040] In the above technical solution, a torsion block 151 is fixedly arranged in the middle of the two rollers 15; the rollers 15 and the torsion block 151 are in a convex structure as a whole; the pressing block 17 is fixedly arranged on the torsion block 151; and a groove 152 is arranged below the torsion block 151. The advantage of such a setting is that the overall convex structure is due to the torsion block 151 extending outward by one end in the radial direction, so that when the rollers 15 rotate, the entire torsion block 151 can be completely turned up on the outside of the oil tank body 22 without being blocked, so that the entire folded edge 21 can be fully pressed to the bottom to meet the operation requirements, and the groove 152 can fit the side of the tank body 22 more evenly to maintain the pressing accuracy of the pressing block 17.

[0041] In the above technical solution, the contact surface between the two pressing blocks 17 and the folded edge 21 of the can cover 20 is concave in a certain arc. The advantage of this arrangement is that since the folded edge 21 of the can cover 20 is also radian, such a configuration can make the pressing block 17 fit the folded edge 21 more closely, thus ensuring the accuracy of the pressing operation.

[0042] In the above technical solution, a rotating device is also included; the rotating device includes a rotating motor 181 and a support column 182 arranged inside the workbench 11; the rotating motor 181 and the support column 182 are symmetrically arranged about the central axis of the cylinder 12; a driving wheel 183 is fixedly connected to the output shaft of the rotating motor 181; a driven wheel 185 is connected to the driving wheel 183 through a belt 184; the middle part of the driven wheel 185 is rotatably arranged on the support column 182 through a bearing ; The middle part of the belt 184 is meshed with a torsion ring 185; the inner ring of the torsion ring 185 corresponds to the protruding pipe mouth 24 at the lower end of the tank cover 20; the inner ring of the torsion ring 185 is fixedly provided with a plurality of torsion bars 186 distributed in a cross shape; the ends of the plurality of torsion bars 186 are provided with rubber heads 187; the end of the pressure head 13 is provided with a spherical cavity; a pressure ball 136 is rotatably provided in the spherical cavity; the pressure ball 136 is fixedly connected to a pressure plate 137 after a part of it leaks out from the opening at the lower end of the spherical cavity. The advantage of such a setting is that the automatic plane rotation operation of the entire oil tank is realized through the linkage and cooperation of the rotating motor 181, the belt 184 and the support column 182, and manual rotation is no longer required, which improves work efficiency and reduces labor intensity. The torsion ring 185 can correspond to the protruding pipe mouth 24 at the lower end of the tank cover 20, and a tight connection is achieved after mutual sleeve connection, which provides a connection basis for the subsequent torsion ring 185 to drive the entire oil tank to rotate; multiple torsion bars 186 distributed in a cross can evenly support the outer wall of the protruding pipe mouth 24 with an arc surface, making the rotation operation more stable and uniform; multiple rubber heads 187 can play an anti-skid role during the twisting operation and improve stability; the spherical cavity at the end of the pressure head 13 allows the pressure ball 136 to rotate freely. After the pressure ball 136 is exposed from the opening at the lower end of the spherical cavity, it cooperates with the fixedly connected pressure plate 137 to achieve axial compression of the entire oil tank, and at the same time, the entire tank body 22 and the tank cover 20 of the oil tank can be rotated circumferentially in the compressed state. Here, it can be prevented that when the torsion ring 135 rotates the tank cover 20, the tank body 22 cannot rotate at the same time, causing the two to separate, thereby making the pressing position of the folded edge 21 of the tank cover 20 inaccurate, affecting the operation efficiency.

[0043] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention are obvious to those skilled in the art. Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation mode. They can be applied to various fields suitable for the present invention. For those familiar with the art, other modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the legends shown and described here.

Claims

1. A pneumatic flanging device, characterized in that: include: A frame, with a workbench at the upper end and a cylinder at the lower end; Four supporting legs are arranged at the lower end of the frame; four connecting rods are transversely fixedly arranged between the four supporting legs; two supporting rods are fixedly connected to two connecting rods; and the two sides of the cylinder body are fixedly connected to the two supporting rods; The upper end of the workbench is rotatably provided with a pressure head, and the lower end is fixedly provided with a base; the upper end of the workbench is fixedly provided with a support column; the upper end of the support column is detachably connected with a hinge seat of a right-angled trapezoidal structure; the lower end of the hinge seat is a right-angled waist edge, and the upper end is an inclined waist edge; the upper bottom edge of the hinge seat is rotatably provided with a pull rod through a pin; the lower bottom edge of the hinge seat is rotatably provided with an L-shaped pressure rod through a pin; a connecting block is rotatably connected between the pull rod and the L-shaped pressure rod through two pins; the shorter end of the L-shaped pressure rod corresponds to the top of the oil tank body; Rollers are rotatably arranged on both sides of the base; both ends of the two rollers are connected to the cylinder through a transmission device; a torsion block is fixedly arranged in the middle of the two rollers; the rollers and the torsion block are in a convex structure as a whole; a pressure block corresponding to the folded edge of the can cover is arranged in the middle of the two rollers, and the pressure block is fixedly arranged on the torsion block; a groove is arranged under the torsion block.

2. A pneumatic flanging device as claimed in claim 1, characterized in that: The transmission device includes a telescopic plate; the lower end of the telescopic plate is fixedly connected to the piston rod of the cylinder, and four racks are fixedly set on the upper end; gears matching the four racks are fixedly set at both ends of the two rollers; the four racks are respectively meshed with four gears; four sliding rods are set at the lower end of the workbench; the upper end of the telescopic plate is sleeved in the four sliding rods through four sliding holes to form a sliding connection.

3. A pneumatic flanging device as claimed in claim 1, characterized in that: Two mutually parallel limiting rods are fixedly arranged on the workbench; the two ends of the two limiting rods are fixedly connected by connecting blocks respectively; corresponding trapezoidal grooves are arranged in the middle of the two limiting rods; the base is fixedly arranged between the two trapezoidal grooves; a limiting hole matching the protruding pipe mouth at the lower end of the tank cover is opened on the base; a triangular block is arranged on the base, and the triangular block is used to lift the tank cover upward and support it.

4. A pneumatic flanging device as claimed in claim 2, characterized in that: Two cover plates are arranged on the upper end of the workbench; and two storage cavities for protecting the four gears are respectively arranged on the two cover plates.

5. A pneumatic flanging device as claimed in claim 1, characterized in that: The contact surfaces between the two pressing blocks and the folded edges of the can cover are in a certain concave arc.

6. A pneumatic flanging device as claimed in claim 1, characterized in that: It also includes a rotating device; the rotating device includes a rotating motor and a support column arranged inside the workbench; the rotating motor and the support column are symmetrically arranged about the central axis of the cylinder; a driving wheel is fixedly connected to the output shaft of the rotating motor; a driven wheel is connected to the driving wheel through a belt; the middle part of the driven wheel is rotatably arranged on the support column through a bearing; a torsion ring is meshingly connected to the middle part of the belt; the inner ring of the torsion ring corresponds to the protruding pipe mouth at the lower end of the tank cover; a plurality of torsion bars distributed in a cross are fixedly arranged on the inner ring of the torsion ring; rubber heads are arranged at the ends of the plurality of torsion bars; a spherical cavity is arranged at the end of the pressure head; a pressure ball is rotatably arranged in the spherical cavity; the pressure ball is fixedly connected to a pressure plate after a part of it is exposed from the opening at the lower end of the spherical cavity.

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