A positioning gripper assembly for flange ring production

Abstract

This utility model relates to the field of flange ring gripper technology and discloses a positioning gripper assembly for flange ring production, including a fixed base, a positioning block and a connecting base located on the upper part of the fixed base. A servo motor is provided at the end of the fixed base away from the connecting base, and three identical anti-slip pads, a positioning block and a locking bolt are provided at the top of the fixed base. In this positioning gripper assembly for flange ring production, the gripper units and positioning units are arranged in a ring-shaped staggered distribution to form a stable triangular support structure, which effectively avoids deformation and positioning deviation of the flange ring caused by uneven force, and greatly improves the clamping stability. The outer diameter surface of the gripper adopts an arc-shaped design adapted to the flange ring, which increases the contact area to reduce local pressure and avoid damage to the flange ring surface during clamping. The threaded drive and guide rail slider structure ensure that the opening and closing process of the gripper is stable and controllable, reduces transmission error, protects the integrity of the flange ring, and improves the reliability of operation and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of flange ring gripper technology, specifically a positioning gripper assembly for flange ring production. Background Technology

[0002] Flange rings are the core metal ring components for connecting pipelines and equipment. They are mainly used to fasten and connect pipelines, valves, pumps and other devices. Two flange rings are clamped together with bolts and sealed with gaskets to achieve a connection seal, while also transferring loads. They are widely used in industries such as petroleum, chemical, power and water treatment, and are key connecting components to ensure the stable operation of fluid systems.

[0003] However, traditional flange ring gripper assemblies lack positioning accuracy. Most devices rely on a single reference surface or simple locating pins for positioning, making it difficult to adapt to the differences in inner and outer diameter dimensions of flange rings of different specifications. This can easily lead to radial offset or axial tilt during machining, directly affecting the dimensional accuracy of drilling, turning, and other processes. Furthermore, traditional grippers often adopt a planar or linear contact design, resulting in poor fit with the arc-shaped outer circle of the flange ring and uneven distribution of clamping force. This can easily cause excessive local stress on the flange ring, leading to deformation and poor practicality. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a positioning gripper assembly for flange ring production, thereby solving the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning gripper assembly for flange ring production, comprising a fixed base, a positioning block and a connecting base located on the upper part of the fixed base, a servo motor being provided at the end of the fixed base away from the connecting base, three identical anti-slip pads, a positioning block and a locking bolt being provided at the top of the fixed base, a positioning post being fixedly installed on the upper part of the positioning block, a guide rail being embedded in the upper part of the fixed base, a slider being slidably installed at the opening at the top of the guide rail, the slider being fixedly connected to the connecting base, a gripper being fixedly installed at the top of the connecting base, a flange ring being sleeved on the outer side of the gripper, a main rotating shaft being fixedly installed on the output shaft of the servo motor, a secondary connecting shaft being fixedly installed at the end of the main rotating shaft away from the servo motor, a top cover being fixedly installed at the end of the secondary connecting shaft away from the main rotating shaft, a threaded ring being provided at the top of the top cover, and a threaded groove adapted to the threaded ring being provided at the connection between the connecting base and the top cover.

[0006] Preferably, the center lines of the main rotating shaft, the secondary connecting shaft, and the top cover are located on the same vertical line, and the main rotating shaft, the secondary connecting shaft, and the top cover are all rotatably connected to the fixed base.

[0007] Through the above technical solution, the main rotating shaft, the secondary connecting shaft and the top cover on the same vertical line can ensure that their center lines are consistent during rotation, avoid shaking or transmission errors caused by eccentricity, and stably drive the grippers to open or close.

[0008] Preferably, the guide rail, slider, connecting seat and gripper together form a gripper unit, and the anti-slip pad, positioning block, locking bolt and positioning post together form a positioning unit. The gripper unit and the positioning unit are arranged in a ring and staggered, and the included angle between the gripper unit and the positioning unit is 60°.

[0009] Through the above technical solution, the gripper unit and the positioning unit form a uniformly staggered layout in the circumferential direction. The 60° included angle setting allows the positioning and clamping forces to be evenly distributed on the circumference of the flange ring, which not only improves the positioning accuracy but also enhances the clamping stability, avoiding excessive local force that could cause the flange ring 11 to shift.

[0010] Preferably, there are three identical grippers and positioning pins, with the included angle between the three grippers being 120° and the included angle between the three positioning pins being 120°.

[0011] With the above technical solution, the three grippers and three positioning pins are evenly distributed at 120° to form a stable triangular support structure, which can ensure that the flange ring is subjected to balanced force during clamping and positioning, and effectively prevent the flange ring from deforming or positioning deviation caused by uneven force.

[0012] Preferably, the top cover and the connecting seat are threaded together, and several identical threaded rings are provided, with the diameters of the several threaded rings increasing at equal intervals.

[0013] With the above technical solution, during use, the output shaft of the servo motor can drive the top cover to rotate through the main rotating shaft and the secondary connecting shaft. The top cover drives the threaded ring to rotate, and the threaded ring drives the connecting seat to open or close through the threaded groove.

[0014] Preferably, the outer diameter surface of the gripper is designed with an arc shape, and the outer diameter surface of the gripper is adapted to the flange ring.

[0015] The above technical solution allows the outer diameter surface of the arc-shaped gripper to match the shape of the flange ring, increasing the contact area between the two, reducing local pressure, avoiding damage to the flange ring surface during clamping, and improving the fit between the gripper and the flange ring, further enhancing clamping stability.

[0016] Compared with the prior art, this utility model provides a positioning gripper assembly for flange ring production, which has the following advantages: 1. The positioning gripper assembly for flange ring production has gripper units and positioning units arranged in a ring with an included angle of 60°. The three grippers and positioning pins are evenly distributed at 120° to form a stable triangular support structure, which can ensure that the flange ring is subjected to balanced force during clamping and positioning, effectively avoiding deformation and positioning deviation caused by uneven force, and greatly improving clamping stability. 2. The positioning gripper assembly used in flange ring production features an arc-shaped outer diameter surface that is compatible with the flange ring, increasing the contact area to reduce local pressure and prevent damage to the flange ring surface during clamping. The threaded drive combined with the guide rail slider structure ensures stable and controllable opening and closing of the gripper, reducing transmission errors. This protects the integrity of the flange ring and improves operational reliability and production efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the flange ring clamping structure of this utility model; Figure 3 This is a schematic diagram of the gripper distribution structure of this utility model; Figure 4 This is a schematic diagram of the positioning block installation structure of this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the gripper unit of this utility model. Figure 1 ; Figure 6 This is a schematic diagram of the three-dimensional structure of the gripper unit of this utility model. Figure 2 ; Figure 7 This is a schematic diagram of the half-section structure of this utility model; Figure 8 This is a schematic diagram of the top cover installation structure of this utility model.

[0018] The components are: 1. Servo motor; 2. Fixed base; 3. Anti-slip pad; 4. Positioning block; 5. Locking bolt; 6. Positioning column; 7. Guide rail; 8. Slider; 9. Connecting seat; 10. Gripper; 11. Flange ring; 12. Main shaft; 13. Secondary connecting shaft; 14. Top cover; 15. Threaded ring; 16. Threaded groove; 17. Gripper unit; 18. Positioning unit. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: like Figure 1-8 As shown, this utility model provides a positioning gripper assembly for flange ring production, including a fixed base 2, a positioning block 4 located on the upper part of the fixed base 2, and a connecting base 9. A servo motor 1 is provided at the end of the fixed base 2 away from the connecting base 9. Three identical anti-slip pads 3, a positioning block 4, and a locking bolt 5 are provided at the top of the fixed base 2. A positioning post 6 is fixedly installed on the upper part of the positioning block 4. A guide rail 7 is embedded in the upper part of the fixed base 2. A slider 8 is slidably installed at the opening at the top of the guide rail 7. The slider 8 is connected to the connecting base 9. The connector 9 is a fixed connection. A gripper 10 is fixedly installed on the top of the connector 9. A flange ring 11 is sleeved on the outside of the gripper 10. A main shaft 12 is fixedly installed on the output shaft of the servo motor 1. A secondary connecting shaft 13 is fixedly installed at the end of the main shaft 12 away from the servo motor 1. A top cover 14 is fixedly installed at the end of the secondary connecting shaft 13 away from the main shaft 12. A threaded ring 15 is provided at the top of the top cover 14. A threaded groove 16 that matches the threaded ring 15 is provided at the connection between the connector 9 and the top cover 14.

[0021] Example 2: like Figure 2-8 As shown, as an improvement to the previous embodiment, the gripper 10 is designed to open and close.

[0022] Specifically, the center lines of the main rotating shaft 12, the auxiliary connecting shaft 13, and the top cover 14 are located on the same vertical line, and the main rotating shaft 12, the auxiliary connecting shaft 13, and the top cover 14 are all rotatably connected to the fixed base 2. The advantage is that the main rotating shaft 12, the auxiliary connecting shaft 13, and the top cover 14 on the same vertical line can ensure that their center lines are consistent during rotation, avoiding wobbling or transmission errors caused by eccentricity, and can stably drive the gripper 10 to open or close.

[0023] Specifically, the top cover 14 and the connecting seat 9 are connected by threads, and several identical threaded rings 15 are provided, with the diameter of the several threaded rings 15 increasing at equal intervals.

[0024] The advantage is that, during use, the output shaft of the servo motor 1 can drive the top cover 14 to rotate through the main rotating shaft 12 and the secondary connecting shaft 13. The top cover 14 drives the threaded ring 15 to rotate, and the threaded ring 15 drives the connecting seat 9 to open or close through the threaded groove 16.

[0025] Example 3: like Figure 2-8 As shown, as an improvement on the previous embodiment, in order to achieve better clamping.

[0026] Specifically, the guide rail 7, slider 8, connecting seat 9, and gripper 10 together form a gripper unit 17, while the anti-slip pad 3, positioning block 4, locking bolt 5, and positioning post 6 together form a positioning unit 18. The gripper unit 17 and positioning unit 18 are arranged in a circular staggered pattern, with an angle of 60° between them. The advantage is that the gripper unit 17 and positioning unit 18 form a uniformly staggered layout in the circumferential direction, and the 60° angle ensures that the positioning and clamping forces are evenly distributed on the circumference of the flange ring 11. This improves positioning accuracy and enhances clamping stability, preventing excessive localized force from causing the flange ring 11 to shift.

[0027] Specifically, the clamping jaws 10 and the positioning pins 6 are each provided with three identical jaws 10, and the included angle between the three jaws 10 and the three positioning pins 6 is 120°. The advantage is that the three jaws 10 and the three positioning pins 6 are evenly distributed at 120° angles, forming a stable triangular support structure. This ensures that the flange ring 11 is subjected to balanced force during clamping and positioning, effectively preventing deformation or positioning deviation of the flange ring 11 due to uneven force distribution.

[0028] Specifically, the outer diameter surface of the gripper 10 adopts an arc-shaped design, which is adapted to the flange ring 11. The advantage is that the arc-shaped design of the outer diameter surface of the gripper 10 is adapted to the shape of the flange ring 11, which can increase the contact area between the two, reduce local pressure, avoid damage to the surface of the flange ring 11 during clamping, and improve the fit between the gripper 10 and the flange ring 11, further enhancing the clamping stability.

[0029] Working principle: During use, servo motor 1 starts, and the output shaft of servo motor 1 drives the top cover 14 to rotate through the main rotating shaft 12 and the auxiliary connecting shaft 13. The threaded ring 15 of the top cover 14 cooperates with the threaded groove 16 of the connecting seat 9, driving the connecting seat 9 to slide along the guide rail 7 through the slider 8, realizing the opening or closing of the gripper 10. The positioning pin 6 in the positioning unit 18 assists the flange ring 11 to complete precise positioning, so that the gripper 10 fits with the flange ring 11, and completes the stable clamping of the flange ring 11. The arc-shaped design of the outer diameter surface of the gripper 10 is adapted to the shape of the flange ring 11, which can increase the contact area between the two, reduce local pressure, avoid damage to the surface of the flange ring 11 during clamping, and improve the fit between the gripper 10 and the flange ring 11, further enhancing the clamping stability.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning gripper assembly for flange ring production, comprising a fixed base (2) and a positioning block (4) and a connecting base (9) located on the upper part of the fixed base (2), characterized in that: A servo motor (1) is provided at the end of the fixed base (2) away from the connecting base (9). Three identical anti-slip pads (3), a positioning block (4), and a locking bolt (5) are provided at the top of the fixed base (2). A positioning column (6) is fixedly installed on the upper part of the positioning block (4). A guide rail (7) is embedded in the upper part of the fixed base (2). A slider (8) is slidably installed at the opening at the top of the guide rail (7). The slider (8) is fixedly connected to the connecting base (9). A gripper (10) is fixedly installed at the top of the connecting base (9). A flange ring (11) is fitted on the outer side of the gripper (10). A main shaft (12) is fixedly installed on the output shaft of the servo motor (1). A secondary connecting shaft (13) is fixedly installed on the end of the main shaft (12) away from the servo motor (1). A top cover (14) is fixedly installed on the end of the secondary connecting shaft (13) away from the main shaft (12). A threaded ring (15) is provided at the top of the top cover (14). A threaded groove (16) that matches the threaded ring (15) is provided at the connection between the connecting seat (9) and the top cover (14).

2. The positioning gripper assembly for flange ring production according to claim 1, characterized in that: The center lines of the main rotating shaft (12), the secondary connecting shaft (13) and the top cover (14) are located on the same vertical line, and the main rotating shaft (12), the secondary connecting shaft (13) and the top cover (14) are all rotatably connected to the fixed base (2).

3. The positioning gripper assembly for flange ring production according to claim 1, characterized in that: The guide rail (7), slider (8), connecting seat (9) and gripper (10) together form a gripper unit (17), and the anti-slip pad (3), positioning block (4), locking bolt (5) and positioning post (6) together form a positioning unit (18). The gripper unit (17) and the positioning unit (18) are arranged in a ring and staggered manner, and the included angle between the gripper unit (17) and the positioning unit (18) is 60°.

4. A positioning gripper assembly for flange ring production according to claim 1, characterized in that: The gripper (10) and the positioning post (6) are each provided with three identical grippers (10), and the included angle between the three grippers (10) is 120°, and the included angle between the three positioning posts (6) is 120°.

5. A positioning gripper assembly for flange ring production according to claim 1, characterized in that: The top cover (14) and the connecting seat (9) are threaded together. Several identical threaded rings (15) are provided, and the diameters of the several threaded rings (15) increase at equal intervals.

6. A positioning gripper assembly for flange ring production according to claim 1, characterized in that: The outer diameter surface of the gripper (10) adopts an arc-shaped design, and the outer diameter surface of the gripper (10) is adapted to the flange ring (11).

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