Multi-jaw fixed type squeeze riveter

Abstract

The utility model belongs to the technical field of die machining, and particularly relates to a multi-jaw fixed type squeeze riveter. The automatic riveting device comprises a base, a fixed support is arranged on the base, and the automatic riveting device is characterized in that a pneumatic cylinder is arranged on the fixed support, the output end of the pneumatic cylinder is connected with the riveting device, the riveting device comprises a driving die pressing riveting head connected with the pneumatic cylinder, and a fixed die pressing riveting head corresponding to the driving die pressing riveting head is arranged on the fixed support; and a plurality of groups of mould bodies which correspond to each other and are matched with each other are arranged on the active mould pressing riveting head and the fixed mould pressing riveting head. The production efficiency is improved. The operation range is expanded; the riveting precision and stability are improved; the labor intensity is reduced; the universality and the adaptability of the equipment are improved; and the safety and the protection function are enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold processing, and particularly relates to a multi-jaw fixed riveting machine. Background Art

[0002] In the process of aircraft manufacturing, the riveting process is a key connection technology. Especially in the assembly of aircraft skins and structural components, the riveting and dimpling processes are widely used. Existing riveting equipment can usually only rivet a single hole position, with limited operating range, and most are manual operations, resulting in low processing efficiency and low precision. At the same time, due to structural limitations, traditional riveting equipment is only suitable for riveting operations on hole positions at the edges of parts, and it is difficult to apply effective riveting force to hole positions in the middle and deep parts of the parts.

[0003] In addition, existing equipment usually only supports single-point riveting and cannot operate on multiple hole positions simultaneously, resulting in low production efficiency. Aircraft parts often have complex shapes and many hole positions, and multiple repeated operations are required during the riveting process, which increases the labor intensity of workers and slows down the processing speed, affecting the production progress and quality. In addition, due to the lack of adjustment function of the equipment, the riveting force cannot be adjusted according to the hole diameter or material characteristics, which easily leads to insecure riveting or damage to the parts, affecting the reliability of the product.

[0004] Therefore, the existing technology has the following problems: 1. Low operation efficiency: It can only rivet a single hole position and cannot perform simultaneous operation on multiple hole positions, resulting in low production efficiency.

[0005] 2. Limited operation range: It cannot rivet the middle or deep part of the part, restricting the applicability of the equipment.

[0006] 3. Non-adjustable riveting force: Lack of the riveting force adjustment function for different parts or material characteristics, which easily causes processing defects.

[0007] 4. Poor equipment flexibility: The equipment structure is fixed and cannot adapt to diverse processing requirements, especially lacking universality in operations with different hole diameters and positions.

[0008] In order to improve the riveting efficiency and precision in the process of aircraft manufacturing, it is urgent to develop a multi-jaw fixed riveting machine that can perform synchronous riveting at multiple points and adapt to different hole positions and material characteristics to solve the deficiencies in the existing technology. Summary of the Utility Model

[0009] The utility model aims at the above problems and provides a multi-jaw fixed riveting machine that can improve the processing quality and the universality of the equipment.

[0010] To achieve the above object of the present utility model, the following technical solutions are adopted. The present utility model includes a base, and a fixed bracket is arranged on the base. It is characterized in that: a pneumatic cylinder is arranged on the fixed bracket, and the output end of the pneumatic cylinder is connected to a riveting device. The riveting device includes a driving die riveting head connected to the pneumatic cylinder, and a fixed die riveting head corresponding to the driving die riveting head is arranged on the fixed bracket; multiple groups of die bodies that correspond to and cooperate with each other are arranged on the driving die riveting head and the fixed die riveting head.

[0011] As a preferred solution of the present utility model, the pneumatic cylinder is connected to a foot controller and a gas source, and the working pressure of the riveting device is controlled by controlling the gas source pressure through the foot controller.

[0012] Furthermore, a foot guard is arranged on the foot controller.

[0013] As another preferred solution of the present utility model, the driving riveting head is connected to the piston rod at the output end of the pneumatic cylinder through an upper connecting rod; the fixed die riveting head is connected to the fixed bracket through a lower connecting rod.

[0014] Furthermore, an upper connecting hole is arranged on the end face of the piston rod, the upper connecting rod is inserted into the upper connecting hole, and the upper connecting rod is fixed by a set screw passing through the surface of the piston rod corresponding to the upper connecting hole; a lower connecting hole is arranged on the fixed bracket, and the lower connecting rod is inserted into the lower connecting hole.

[0015] Even further, the outer contour shapes of the upper connecting rod and the lower connecting rod are set to be different, so that the upper connecting rod cannot be inserted into the lower connecting hole, and / or the lower connecting rod cannot be inserted into the upper connecting hole.

[0016] As a third preferred solution of the present utility model, an avoidance groove is arranged on the fixed bracket corresponding to the riveting device.

[0017] As a fourth preferred solution of the present utility model, a set of die bodies includes an upper die and a lower die. An upper die hole that cooperates with the upper die is arranged on the driving die riveting head, and a snap ring that cooperates with the upper die is arranged in the upper die hole; a lower die hole that cooperates with the lower die is arranged on the fixed die riveting head.

[0018] The beneficial effects of the present utility model are as follows: 1. Improve production efficiency: By adopting a multi-jaw structure, the present utility model can simultaneously perform unified riveting operations on multiple hole positions, avoiding the problem of low efficiency of single-point riveting of traditional equipment, and significantly improving the production efficiency of riveting during aircraft assembly.

[0019] 2. Expand the operation range: Since an avoidance groove is arranged on the fixed bracket of the present utility model, it can rivet the hole positions in the middle and deep parts of the parts, solving the limitation of traditional equipment that is only limited to operating on edge hole positions, and adapting to the processing requirements of more complex parts.

[0020] 3. Improve the riveting accuracy and stability: Through the fixed structure design, the equipment has higher stability and accuracy during the riveting process. At the same time, by using the manual foot controller, it can ensure that the riveting effect of each hole position is considered consistent within the allowable range, thereby improving the processing quality of the product.

[0021] 4. Reduce labor intensity: Riveting with multiple jaws simultaneously reduces the need for workers to perform repetitive operations, reduces labor intensity, and improves the degree of automation of the operation.

[0022] 5. Enhance the versatility and adaptability of the equipment: The riveting machine of the present utility model can be applied to hole positions of different sizes, shapes, and positions by replacing the riveting device, and can meet the riveting requirements of different aircraft parts, enhancing the versatility of the equipment.

[0023] 6. Enhance safety and protection functions: The present utility model has a protection function, avoiding potential safety hazards caused by unstable equipment or incorrect operation during the riveting process. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the present utility model.

[0025] Figure 2 is a schematic structural diagram of the fixed bracket and the riveting device.

[0026] Figure 3 is Figure 2 A - A cross-sectional view of

[0027] In the drawings, 1 is the base, 2 is the air source, 3 is the fixed bracket, 4 is the avoidance groove, 5 is the air cylinder, 6 is the riveting device, 7 is the foot guard, 8 is the foot controller, 9 is the piston rod, 10 is the set screw, 11 is the active die riveting head, 12 is the upper die, 13 is the lower die, 14 is the fixed die riveting head, 15 is the upper connecting rod, 16 is the snap ring, and 17 is the lower connecting rod. Detailed Embodiment

[0028] The present utility model includes a base 1, and a fixed bracket 3 is arranged on the base 1. It is characterized in that: an air cylinder 5 is arranged on the fixed bracket 3, and the output end of the air cylinder 5 is connected to the riveting device. The riveting device 6 includes an active die riveting head 11 connected to the air cylinder 5, and a fixed die riveting head 14 corresponding to the active die riveting head 11 is arranged on the fixed bracket 3; multiple groups of die bodies corresponding to and cooperating with each other are arranged on the active die riveting head 11 and the fixed die riveting head 14.

[0029] As a preferred scheme of the present utility model, the air cylinder 5 is connected to the foot controller 8 and the air source 2, and the pressure of the air source 2 is controlled by the foot controller 8 to realize the control of the working pressure of the riveting device.

[0030] Further, a foot guard 7 is provided on the foot controller 8.

[0031] As another preferred solution of the present utility model, the active riveting head is connected to the piston rod 9 at the output end of the pneumatic cylinder 5 through an upper connecting rod 15; the fixed die riveting head 14 is connected to the fixed bracket 3 through a lower connecting rod 17.

[0032] Further, an upper connecting hole is provided on the end face of the piston rod 9, the upper connecting rod 15 is inserted into the upper connecting hole, and the upper connecting rod 15 is fixed by a set screw 10 passing through the surface of the piston rod 9 corresponding to the upper connecting hole; a lower connecting hole is provided on the fixed bracket 3, and the lower connecting rod 17 is inserted into the lower connecting hole.

[0033] Furthermore, the outer contour shapes of the upper connecting rod 15 and the lower connecting rod 17 are set to be different, so that the upper connecting rod 15 cannot be inserted into the lower connecting hole, and / or the lower connecting rod 17 cannot be inserted into the upper connecting hole.

[0034] As a third preferred solution of the present utility model, an avoidance groove 4 is provided on the fixed bracket 3 corresponding to the riveting device 6.

[0035] As a fourth preferred solution of the present utility model, the set of die bodies includes an upper die 12 and a lower die 13. An upper die hole for cooperating with the upper die 12 is provided on the active die riveting head 11, and a snap ring 16 for cooperating with the upper die 12 is provided in the upper die hole; a lower die hole for cooperating with the lower die 13 is provided on the fixed die riveting head 14.

[0036] The upper die 12 can be a female die, and the lower die 13 can be a male die.

[0037] During use, select a suitable upper connecting rod 15 of the active riveting head according to needs and insert it into the upper connecting hole of the piston rod 9 at the output end of the pneumatic cylinder 5, and then fix the upper connecting rod 15 with the set screw 10. Insert the lower connecting rod 17 of the fixed die riveting head 14 into the lower connecting hole of the fixed bracket 3; the upper connecting rod 15 and the lower connecting rod 17 can be set as cylindrical rods with different diameters, which can prevent the operator from misoperation and reversing the active riveting head and the driven riveting head.

[0038] Place the male die in the lower die hole on the fixed die riveting head 14; install the female die in the upper die hole of the active riveting head; fix the female die with the snap ring 16 in the upper die hole.

[0039] Place the workpiece between the fixed die riveting head 14 and the active riveting head. The avoidance groove 4 can effectively avoid the workpiece, and the working range of the riveting device 6 is not limited to the edge of the workpiece, improving the adaptability of the present utility model.

[0040] After the workpiece placement is completed, the operator controls the action of the pneumatic cylinder 5 through the foot controller 8, which can be set so that the stepping stroke is linked to the control of the cylinder pressure. As the stepping stroke increases, the cylinder pressure increases, and as the stepping stroke decreases, the cylinder pressure decreases. In this way, the operator can control the pressure manually, and safety is guaranteed. At the same time, a foot guard 7 is provided on the foot controller 8 to prevent injury caused by falling heavy objects.

[0041] It can be understood that the above specific description of the present invention is only for explaining the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as it meets the usage requirements, it is within the protection scope of the present invention.

Claims

1. A multi-jaw fixed riveting machine, comprising a base (1), on which a fixed bracket (3) is arranged, characterized in that: The fixed bracket (3) is provided with a pneumatic cylinder (5), the output end of the pneumatic cylinder (5) is connected to a riveting device (6), the riveting device (6) comprises an active die-stamping rivet head (11) connected to the pneumatic cylinder (5), and the fixed bracket (3) is provided with a fixed die-stamping rivet head (14) corresponding to the active die-stamping rivet head (11); the active die-stamping rivet head (11) and the fixed die-stamping rivet head (14) are provided with a plurality of groups of mold bodies corresponding to and cooperating with each other.

2. The multi-jaw fixed riveting machine according to claim 1, characterized in that: The pneumatic cylinder (5) is connected to a foot controller (8) and an air source (2), and the pressure of the air source (2) is controlled by the foot controller (8) to achieve control of the working pressure of the riveting device (6).

3. The multi-jaw fixed riveting machine according to claim 2, characterized in that: The foot controller (8) is provided with a foot protection cover (7).

4. The multi-jaw fixed riveting machine according to claim 1, characterized in that: The active die-stamping rivet head is connected to the piston rod (9) at the output end of the pneumatic cylinder (5) via an upper connecting rod (15); and the fixed die-stamping rivet head (14) is connected to the fixed bracket (3) via a lower connecting rod (17).

5. The multi-jaw fixed riveting machine according to claim 4, characterized in that: An upper connecting hole is provided on the end surface of the piston rod (9), and the upper connecting rod (15) is inserted into the upper connecting hole. The upper connecting rod (15) is fixed by a top screw (10) passing through the surface of the piston rod (9) and corresponding to the upper connecting hole; a lower connecting hole is provided on the fixing bracket (3), and the lower connecting rod (17) is inserted into the lower connecting hole.

6. The multi-jaw fixed riveting machine according to claim 5, characterized in that: The outer contours of the upper connecting rod (15) and the lower connecting rod (17) are set to be different, so that the upper connecting rod (15) cannot be inserted into the lower connecting hole, and / or the lower connecting rod (17) cannot be inserted into the upper connecting hole.

7. The multi-jaw fixed riveting machine according to claim 1, characterized in that: The fixing bracket (3) is provided with an escape groove (4) corresponding to the riveting device (6).

8. The multi-jaw fixed riveting machine according to claim 1, characterized in that: The set of mold bodies comprises an upper mold (12) and a lower mold (13); the active mold rivet head (11) is provided with an upper mold hole cooperating with the upper mold (12); a retaining spring (16) cooperating with the upper mold (12) is provided in the upper mold hole; and the fixed mold rivet head (14) is provided with a lower mold hole cooperating with the lower mold (13).

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