High-speed servo spin riveting machine

Abstract

The utility model discloses a high-speed servo spin riveting machine which comprises a frame body, an I-shaped supporting frame is arranged on the frame body, the inner top and the inner bottom of the I-shaped supporting frame are jointly and fixedly connected with a supporting back plate, and a servo motor is installed at the upper end of the I-shaped supporting frame. The tail end of an output shaft of the servo motor penetrates through the upper end of the I-shaped supporting frame and is fixedly connected with a rotary riveting head, a servo hydraulic oil cylinder is installed at the lower end of the I-shaped supporting frame, the telescopic end of the servo hydraulic oil cylinder penetrates through the lower end of the I-shaped supporting frame and is fixedly connected with a supporting sliding plate, and a containing base is installed at the upper end of the supporting sliding plate. According to the high-speed servo spin riveting machine, in the riveting process, the size of riveting pressure is controlled through the servo hydraulic oil cylinder, press-fitting displacement is formed, and a pressure-displacement curve is formed, so that plastic deformation of a product is achieved, the expected fastening effect is achieved, and the stability of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary riveting and pressing, in particular to a high-speed servo rotary riveting machine. Background Art

[0002] In the field of mechanical manufacturing, especially in the riveting and assembly process of bearing forgings and other similar products, traditional riveting equipment has many limitations.

[0003] (1) Inaccurate pressure control

[0004] Traditional riveting equipment often uses a relatively simple pressure application method, which cannot accurately control the riveting pressure. For example, in some hydraulic riveting equipment, due to the inherent characteristics of the hydraulic system, the pressure fluctuates greatly, making it difficult to achieve precise pressure output according to the specific product requirements. This leads to the possibility of damage to the product due to excessive pressure during the riveting process, or the product cannot achieve the expected degree of plastic deformation due to insufficient pressure, thus affecting the fastening effect.

[0005] (2) Insufficient displacement stroke control

[0006] Traditional equipment lacks precision in controlling press-fit displacement stroke. Many traditional riveting machines can only provide simple stroke limits, making it difficult to meet the modern industry's demand for high-precision riveting and assembly. For example, in some mechanically limited riveting machines, due to factors such as wear of mechanical components and manufacturing tolerances, the actual displacement stroke may deviate significantly from the design requirements. This deviation can affect the assembly quality of the product and reduce its stability.

[0007] (3) Lack of process monitoring

[0008] Traditional riveting equipment typically cannot fully monitor the entire process. In particular, it lacks the ability to monitor the travel pressure-displacement curve. This means it's impossible to accurately measure the pressure changes under varying product displacements, making it difficult to adjust the riveting process based on actual conditions. If a product quality issue arises, it's difficult to trace it back to the specific step in the process, hindering quality control and improvement.

[0009] Therefore, it is necessary to design a high-speed servo riveting machine to solve the above problems. Utility Model Content

[0010] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-speed servo riveting machine. During the riveting process, the high-speed servo riveting machine controls the size of the riveting pressure through a servo hydraulic cylinder, forms a press displacement, and forms a pressure-displacement curve, so that the product is plastically deformed, the expected fastening effect is achieved, and the stability of the product is improved.

[0011] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0012] A high-speed servo rotary riveting machine includes a frame, an I-shaped support frame is provided on the frame, the inner top and inner bottom of the I-shaped support frame are fixedly connected to a support backplate, a servo motor is installed at the upper end of the I-shaped support frame, the output shaft end of the servo motor passes through the upper end of the I-shaped support frame and is fixedly connected to a rotary rivet head, a servo hydraulic cylinder is installed at the lower end of the I-shaped support frame, the telescopic end of the servo hydraulic cylinder passes through the lower end of the I-shaped support frame and is fixedly connected to a support slide, and a placement seat is installed at the upper end of the support slide.

[0013] Preferably, the front side of the support back plate is fixedly connected to two linear guide rails, and the two linear guide rails are slidably connected to sliders, and the front sides of the two sliders are fixedly connected to the support slide plate.

[0014] Preferably, a display screen is installed on the front side of the frame, and two sliding doors are provided on the front side of the frame.

[0015] Preferably, an aluminum profile is fixedly connected to the front side of the support back plate, and an induction sensor is installed on the front side of the aluminum profile.

[0016] Preferably, a grating ruler is installed on the front side of the support back plate, and two safety light curtains are installed on the front side of the frame.

[0017] Preferably, adjacent sides of the placement seat and the rotary rivet head are both provided with placement openings, and the inner wall of the placement opening of the rotary rivet head is provided with a threaded layer.

[0018] Compared with existing technologies, the advantages of this device are:

[0019] Compared with the existing technology, through the setting of servo hydraulic cylinder, servo motor and grating ruler, during the riveting process, the grating ruler monitors the displacement stroke, the servo motor monitors the speed, and the servo hydraulic cylinder monitors the pressing force, forming a displacement pressure curve to ensure that the product achieves the expected fastening effect;

[0020] Compared with the existing technology, the setting of the grating ruler makes it possible to reduce the hydraulic speed and increase the hydraulic pressure when the product approaches the rotating riveting head during the riveting process, thereby better controlling the riveting pressure of the product.

[0021] Compared with the existing technology, through the setting of two safety light curtains, the servo motor and servo hydraulic cylinder will not start when the staff places the product, thereby ensuring the safety when placing the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a structural diagram of a high-speed servo riveting machine proposed in the utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the mid-spin rivet assembly;

[0024] Figure 3 It is a structural diagram of the rotary rivet head and the placement seat;

[0025] Figure 4 for Figure 3 Schematic diagram of the structure from another perspective.

[0026] In the figure: 1 frame, 2 sliding door, 3 I-beam support frame, 4 rotary rivet head, 5 support back plate, 6 grating ruler, 7 support slide plate, 8 display screen, 9 servo hydraulic cylinder, 10 safety light curtain, 11 servo motor, 12 slider, 13 linear guide rail, 14 aluminum profile, 15 placement seat, 16 induction sensor. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figures 1-4 A high-speed servo rotary riveting machine includes a frame 1, an I-shaped support frame 3 is provided on the frame 1, the inner top and inner bottom of the I-shaped support frame 3 are fixedly connected to a support back plate 5, a servo motor 11 is installed at the upper end of the I-shaped support frame 3, the output shaft end of the servo motor 11 passes through the upper end of the I-shaped support frame 3 and is fixedly connected to a rotary rivet head 4, a servo hydraulic cylinder 9 is installed at the lower end of the I-shaped support frame 3, the telescopic end of the servo hydraulic cylinder 9 passes through the lower end of the I-shaped support frame 3 and is fixedly connected to a supporting slide 7, a placing seat 15 is installed at the upper end of the supporting slide 7, and the adjacent sides of the placing seat 15 and the rotary rivet head 4 are provided with placing openings, and the inner wall of the placing opening of the rotary rivet head 4 is provided with a threaded layer.

[0029] Among them, the front side of the support back plate 5 is fixedly connected to two linear guide rails 13, and the two linear guide rails 13 are slidably connected to the sliders 12. The front sides of the two sliders 12 are fixedly connected to the support slide plate 7.

[0030] A display screen 8 is installed on the front side of the frame 1 , and two sliding doors 2 are provided on the front side of the frame 1 .

[0031] Among them, the front side of the support back plate 5 is fixedly connected to the aluminum profile 14, the front side of the aluminum profile 14 is installed with an induction sensor 16, the front side of the support back plate 5 is installed with a grating ruler 6, and the front side of the frame 1 is installed with two safety light curtains 10. The setting of the safety light curtain 10 can avoid the situation where the device automatically runs when the product is placed and causes personal injury. A controller is provided, and the grating ruler 6 can sense the position of the product and generate a signal to transmit to the controller. The controller controls the hydraulic speed of the servo hydraulic cylinder 9 to decrease and the hydraulic pressure to increase, and at the same time controls the operation of the servo motor 11, and during the riveting process, a pressure-displacement curve will be formed and displayed on the display screen 8.

[0032] The functional principle of the present invention can be explained through the following operation mode: when riveting products, the lower product is placed on the placement seat 15, and the upper product is installed on the rotating riveting head 4 by rotation. When the products are placed, the staff moves their hands away from the frame 1 and then controls the servo hydraulic cylinder 9 to operate, thereby moving the lower product upward;

[0033] When the lower product approaches the rotary riveting head 4, the grating ruler 6 controls the hydraulic speed of the servo hydraulic cylinder 9 to decrease and the hydraulic pressure to increase according to the position feedback of the product, and controls the servo motor 11 to drive the rotary riveting head 4 to rotate, thereby riveting the product;

[0034] During the riveting process, a pressure-displacement curve is automatically generated and displayed on the display screen 8, thereby facilitating the control of the riveting pressure and ensuring the quality of the riveted product.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-speed servo riveting machine, comprising a frame (1), characterized in that: An I-shaped support frame (3) is provided on the frame body (1), the inner top and inner bottom of the I-shaped support frame (3) are fixedly connected to a support back plate (5), a servo motor (11) is installed at the upper end of the I-shaped support frame (3), the output shaft end of the servo motor (11) passes through the upper end of the I-shaped support frame (3) and is fixedly connected to a rotating rivet head (4), a servo hydraulic cylinder (9) is installed at the lower end of the I-shaped support frame (3), the telescopic end of the servo hydraulic cylinder (9) passes through the lower end of the I-shaped support frame (3) and is fixedly connected to a support slide (7), and a placement seat (15) is installed at the upper end of the support slide (7).

2. The high-speed servo riveting machine according to claim 1, characterized in that: The front side of the support back plate (5) is fixedly connected to two linear guide rails (13), and the two linear guide rails (13) are slidably connected to a slider (12), and the front sides of the two sliders (12) are fixedly connected to the support slide plate (7).

3. The high-speed servo riveting machine according to claim 1, characterized in that: A display screen (8) is installed on the front side of the frame (1), and two sliding doors (2) are provided on the front side of the frame (1).

4. The high-speed servo riveting machine according to claim 1, characterized in that: An aluminum profile (14) is fixedly connected to the front side of the supporting back plate (5), and an induction sensor (16) is installed on the front side of the aluminum profile (14).

5. The high-speed servo riveting machine according to claim 1, characterized in that: A grating ruler (6) is installed on the front side of the supporting back plate (5), and two safety light curtains (10) are installed on the front side of the frame (1).

6. The high-speed servo riveting machine according to claim 1, characterized in that: Adjacent sides of the placement seat (15) and the rotary rivet head (4) are both provided with placement openings, and the inner wall of the placement opening of the rotary rivet head (4) is provided with a threaded layer.

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