A stress sensor welding clamping mechanism and welding machine

Abstract

The utility model relates to the technical field of welding especially is a kind of clamping mechanism and welding machine for stress sensor welding, it include: installation pedestal, independent fixed setting;Mounting, it is rotatably installed in the slot hole of installation pedestal, and mounting is provided with positioning column on it;Moving piece, it is set on positioning column, and moving piece is slidably installed along the length direction of positioning column;Two clamping mechanisms, respectively set in the both ends of moving piece, and clamping mechanism is used for stress sensor to carry out capture and fixed;Threaded rod, it is rotatably installed in the axle cavity of mounting, and threaded rod is installed with the screw hole of moving piece cooperation;Driving motor, it is set in the cavity inside of installation pedestal, and driving motor output end is installed with threaded rod cooperation;Adjusting mechanism, it is set in the cavity inside of installation pedestal, and mounting is installed with adjusting mechanism cooperation, adjusting mechanism is used for the working position of two clamping mechanisms to switch;It improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of welding, and in particular to a clamping mechanism and welding machine for welding stress sensors. Background Technology

[0002] As a precision measuring element, the welding quality of stress sensors directly affects measurement accuracy and service life. In aerospace, automotive electronics, industrial automation and other fields, the welding process of stress sensors has extremely high requirements, which need to ensure precise welding position, uniform stress distribution and avoid thermal deformation.

[0003] In batch welding operations, existing technologies cannot achieve continuous operation. When one set of sensors is welding, another set of sensors cannot be simultaneously clamped and prepared, causing interruptions in the production process. This intermittent operation mode severely restricts the improvement of production efficiency, which is particularly prominent in application scenarios with high capacity requirements. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a clamping mechanism and welding machine for welding stress sensors to improve production efficiency.

[0005] This utility model discloses a clamping mechanism for welding stress sensors, comprising:

[0006] Mounting base, independently fixed installation;

[0007] The mounting component is rotatably installed in the slot of the mounting base, and the mounting component is provided with a positioning post, the length direction of the positioning post being parallel to the rotation axis of the mounting component;

[0008] The movable part is mounted on the positioning post and is slidably installed along the length of the positioning post.

[0009] Two clamping mechanisms are respectively located at both ends of the moving part. The clamping mechanisms are used to grip and fix the stress sensor.

[0010] The threaded rod is rotatably installed inside the shaft cavity of the mounting part, and the threaded rod is fitted with the threaded through hole of the moving part.

[0011] The drive motor is located inside the cavity of the mounting base, and the output end of the drive motor is installed in conjunction with the threaded rod. The drive motor is used to hold the mechanism to drive the stress sensor to adjust the height.

[0012] The adjustment mechanism is located inside the cavity of the mounting base, and the mounting component is installed in conjunction with the adjustment mechanism. The adjustment mechanism is used to switch the working positions of the two clamping mechanisms.

[0013] Furthermore, the clamping mechanism includes:

[0014] An assembly is located at one end of the movable part, and two through holes symmetrically arranged on the assembly are respectively rotatably mounted with support shafts;

[0015] Two support arms are symmetrically and rotatably installed in the positioning holes at both ends of the assembly, and grippers are rotatably installed on the support arms;

[0016] Two connecting arms are respectively mounted on two support shafts, and the two connecting arms are respectively engaged with two grippers for rotational installation;

[0017] The power mechanism is mounted on the assembly and is installed in conjunction with two support shafts. The power mechanism is used to adjust the distance between the two grippers.

[0018] Preferably, the two rotation points of the support arm and connecting arm on the assembly and the two rotation points of the support arm and connecting arm on the gripper form a parallelogram structure.

[0019] Furthermore, the power mechanism includes:

[0020] A cylinder is mounted on an assembly, and a rack and pinion is installed at the cylinder output end;

[0021] Two connecting gears are coaxially mounted on two support shafts, and a spur rack meshes with the two connecting gears.

[0022] Preferably, the adjustment mechanism includes:

[0023] The servo motor is located inside the cavity of the mounting base, and a sector gear is installed at the output end of the servo motor.

[0024] The transmission gear is coaxially mounted on the mounting component. The sector gear meshes with the transmission gear, and a single meshing of the sector gear and the transmission gear causes the mounting component to rotate 180°.

[0025] Furthermore, a positioning component is coaxially mounted on the output end of the servo motor, and two positioning grooves are symmetrically arranged on the transmission gear. The positioning component and the positioning groove of the transmission gear are slidably installed together, and when the sector gear meshes with the transmission gear, the positioning component and the positioning groove are in a disengaged state.

[0026] Preferably, the servo motor drives the sector gear and positioning component to rotate 360° in a single start, and the rotation direction of the servo motor is opposite to that of the previous start.

[0027] This utility model discloses a welding machine for welding stress sensors, which employs the clamping mechanism of this utility model.

[0028] This invention relates to a clamping mechanism and welding machine for welding stress sensors. The mounting base is independently fixed and has an internal cavity, providing stable support for the overall structure and installation space for components such as the drive motor and adjustment mechanism. The mounting component is rotatably mounted on the mounting base, and with the help of a positioning column parallel to the rotation axis, the moving component and clamping mechanism can achieve multi-angle rotation adjustment to adapt to different welding positions and angle requirements. The moving component slides along the positioning column, and with the threaded engagement of the threaded rod and the moving component, the clamping mechanism can move precisely up and down along the positioning column under the drive of the drive motor. This facilitates the gripping, placement, and height fine-tuning of stress sensors at different heights, ensuring that the stress sensor is at the optimal height during welding. Two clamping mechanisms located at both ends of the moving component can work alternately. By switching working positions through the adjustment mechanism, while one clamping mechanism flips the stress sensor to the welding area for welding, the other can simultaneously prepare to clamp the unwelded stress sensor, effectively reducing waiting time and achieving efficient connection of the stress sensor welding process, thus improving overall welding efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a clamping mechanism for welding stress sensors and a welding machine under a first angle according to the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of a clamping mechanism for welding stress sensors and a welding machine under a second angle according to the present invention;

[0031] Figure 3 This is a cross-sectional structural diagram of a clamping mechanism for welding stress sensors and a mounting base for a welding machine according to the present invention.

[0032] Figure 4 This is an exploded structural diagram of a clamping mechanism for welding stress sensors and an adjusting mechanism for a welding machine according to the present invention.

[0033] The following components are labeled in the attached diagram: 1. Mounting base; 2. Mounting component; 3. Positioning column; 4. Moving component; 5. Clamping mechanism; 51. Assembly component; 52. Support shaft; 53. Support arm; 54. Gripper; 55. Connecting arm; 56. Power mechanism; 56a. Cylinder; 56b. Spur rack; 56c. Connecting gear; 6. Threaded rod; 7. Drive motor; 8. Adjustment mechanism; 81. Servo motor; 82. Sector gear; 83. Transmission gear; 84. Positioning component. Detailed Implementation

[0034] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0035] This utility model relates to a clamping mechanism for welding stress sensors, such as... Figures 1 to 4 As shown, it includes:

[0036] Mounting base 1 is independently fixed and used to support the entire clamping mechanism. Mounting base 1 has a cavity inside.

[0037] Mounting component 2 is rotatably mounted in the slot of mounting base 1, and a positioning post 3 is provided on mounting component 2, with the length direction of the positioning post 3 being parallel to the rotation axis of mounting component 2;

[0038] The movable part 4 is set on the positioning post 3 and is slidably installed along the length of the positioning post 3;

[0039] Two clamping mechanisms 5 are respectively disposed at both ends of the moving part 4. The clamping mechanisms 5 are used to grasp and fix the stress sensor.

[0040] The threaded rod 6 is rotatably installed inside the shaft cavity of the mounting part 2, and the threaded rod 6 is fitted with the threaded through hole of the moving part 4, so that when the threaded rod 6 rotates, the moving part 4 can move up and down along the positioning post 3.

[0041] The drive motor 7 is located inside the cavity of the mounting base 1, and the output end of the drive motor 7 is installed in conjunction with the threaded rod 6. The drive motor 7 is used to adjust the height of the clamping mechanism 5 with stress sensor so as to facilitate angle flipping and release of stress sensor.

[0042] The adjustment mechanism 8 is located inside the cavity of the mounting base 1, and the mounting part 2 is installed in conjunction with the adjustment mechanism 8. The adjustment mechanism 8 is used to switch the working positions of the two clamping mechanisms 5.

[0043] The working principle of this device is as follows:

[0044] Before preparing to clamp the stress sensor, first adjust the angle of the mounting part 2 using the adjusting mechanism 8 so that one of the clamping mechanisms 5 is in a position that is easy to grip the stress sensor. Then start the drive motor 7, and drive the moving part 4 up and down by rotating the threaded rod 6 to adjust the clamping mechanism 5 to a suitable height to grip the stress sensor. After using the clamping mechanism 5 to grip the stress sensor, adjust the height of the clamping mechanism 5 again using the drive motor 7. Then adjust the position of the clamping mechanism using the adjusting mechanism 8. Then flip the stress sensor to the welding area. The other clamping mechanism 5 is now in the position to grip the stress sensor. Then lower the height of the clamping mechanism 5. The clamping mechanism 5 in the welding area is in the welding position. The other clamping mechanism 5 is used to clamp the unwelded stress sensor.

[0045] The mounting base 1 is independently fixed and has an internal cavity, providing stable support for the overall structure and providing installation space for components such as the drive motor 7 and the adjustment mechanism 8. The mounting component 2 is rotatably mounted on the mounting base 1, and with the positioning column 3 parallel to the rotation axis, the moving component 4 and the clamping mechanism 5 can achieve multi-angle rotation adjustment to adapt to different welding positions and angle requirements. The moving component 4 is slidably mounted along the positioning column 3, and with the threaded engagement between the threaded rod 6 and the moving component 4, the clamping mechanism 5 can move precisely up and down along the positioning column 3 under the drive of the drive motor 7. This facilitates the gripping, placement, and height fine-tuning of stress sensors at different height positions, ensuring that the stress sensors are in the optimal height position during welding. The two clamping mechanisms 5 located at both ends of the moving component 4 can work alternately. By switching the working position through the adjustment mechanism 8, while one clamping mechanism 5 flips the stress sensor to the welding area for welding, the other can simultaneously clamp and prepare the unwelded stress sensor, effectively reducing waiting time and achieving efficient connection of the stress sensor welding process, thus improving the overall welding efficiency.

[0046] As a preferred option, such as Figures 1 to 3 As shown, the clamping mechanism 5 includes:

[0047] Assembly 51 is located at one end of the movable part 4. Assembly 51 serves as the main frame of the clamping mechanism 5 and is used to support and connect other components. Support shafts 52 are rotatably installed at two through holes symmetrically arranged on the assembly 51.

[0048] Two support arms 53 are symmetrically and rotatably installed in the positioning holes at both ends of the assembly 51. A gripper 54 is rotatably installed on the support arm 53. The function of the support arm 53 is to support the gripper 54 and enable it to be flexibly adjusted according to the shape and size of the stress sensor.

[0049] Two connecting arms 55 are respectively mounted on two support shafts 52, and the two connecting arms 55 are respectively rotatably mounted in cooperation with two grippers 54. The function of the connecting arms 55 is to transmit the rotation of the support shafts 52 to the grippers 54, thereby realizing the adjustment of the gap of the grippers 54.

[0050] The power mechanism 56 is mounted on the assembly 51 and is installed in conjunction with the two support shafts 52. The power mechanism 56 is used to adjust the distance between the two grippers 54.

[0051] The working principle of the clamping mechanism 5 in this device is as follows:

[0052] When it is necessary to grasp the stress sensor, the power mechanism 56 is activated, driving the support shaft 52 to rotate. The rotation of the support shaft 52 is transmitted to the gripper 54 through the connecting arm 55, causing the two grippers 54 to move towards or away from each other, thereby adjusting the distance between the grippers 54 to adapt to the shape and size of the stress sensor.

[0053] The power mechanism 56 in the clamping mechanism 5 drives the support shaft 52 to rotate, thereby driving the connecting arm 55 and the gripper 54 to adjust the distance, so that the gripper 54 can flexibly adapt to stress sensors of different shapes and sizes, further enhancing the adaptability and gripping stability of the device.

[0054] As a preferred option, such as Figures 1 to 3 As shown, the two rotation points of the support arm 53 and the connecting arm 55 on the assembly 51, and the two rotation points of the support arm 53 and the connecting arm 55 on the gripper 54 form a parallelogram structure.

[0055] Due to the parallelogram mechanical structure design, when the power mechanism 56 drives the support shaft 52 to rotate, it can ensure that the two grippers 54 always move in parallel during the adjustment of the spacing. This design can ensure the average application of the clamping force when clamping the stress sensor.

[0056] As a preferred option, such as Figures 1 to 3 As shown, the power mechanism 56 includes:

[0057] Cylinder 56a is mounted on assembly 51, and a rack 56b is installed at the output end of cylinder 56a;

[0058] Two connecting gears 56c are coaxially mounted on two support shafts 52, and the rack 56b meshes with the two connecting gears 56c.

[0059] The power mechanism 56 adopts a combination design of cylinder 56a, rack 56b and two connecting gears 56c. This design converts the linear motion of cylinder 56a into rotational motion, thereby achieving precise adjustment of the gap between the grippers 54. When cylinder 56a is started, its output end pushes rack 56b to move linearly. Since rack 56b meshes with the two connecting gears 56c, the two connecting gears 56c rotate synchronously in the opposite direction, and further transmit the motion to grippers 54 through connecting arm 55, thereby achieving adjustment of the gap between grippers 54.

[0060] As a preferred option, such as Figures 1 to 4 As shown, the adjustment mechanism 8 includes:

[0061] A servo motor 81 is disposed inside the cavity of the mounting base 1. A sector gear 82 is mounted on the output end of the servo motor 81. The servo motor 81 is used to provide power to drive the sector gear 82 to rotate.

[0062] The transmission gear 83 is coaxially mounted on the mounting part 2. The sector gear 82 meshes with the transmission gear 83, and a single meshing of the sector gear 82 and the transmission gear 83 drives the mounting part 2 to rotate 180°. The output end of the servo motor 81 is also coaxially mounted with a positioning part 84. The transmission gear 83 has two symmetrically arranged positioning grooves. The positioning part 84 and the positioning grooves of the transmission gear 83 are slidably installed. When the sector gear 82 meshes with the transmission gear 83, the positioning part 84 is disengaged from the positioning grooves. A single start of the servo motor 81 drives the sector gear 82 and the positioning part 84 to rotate 360°. Each start of the servo motor 81 rotates in the opposite direction to the previous start.

[0063] When the working position of the clamping mechanism 5 needs to be switched, the servo motor 81 is started, driving the sector gear 82 to rotate. The sector gear 82 meshes with the transmission gear 83. A single meshing causes the transmission gear 83 to rotate 180°, which in turn causes the mounting part 2 to rotate 180°. When the meshing is disengaged, the positioning part 84 cooperates with the positioning groove on the transmission gear 83 to achieve the positioning of the mounting part 2, ensuring that the clamping mechanism 5 remains stable after the working position is switched. A single start of the servo motor 81 drives the sector gear 82 and the positioning part 84 to rotate 360°. Moreover, each start of the servo motor 81 rotates in the opposite direction to the previous start, ensuring that the mounting part 2 rotates 180° each time, realizing the alternating operation of the clamping mechanism 5, and preventing the cylinder power supply line from winding.

[0064] The clamping mechanism of this invention can be used in various types of welding machines.

[0065] The present invention relates to a clamping mechanism and welding machine for welding stress sensors. The installation method, connection method or setting method are all common mechanical methods. As long as they can achieve their beneficial effects, they can be implemented.

[0066] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A clamping mechanism for welding stress sensors, characterized in that, include: Mounting base (1), independently fixed; The mounting component (2) is rotatably installed in the slot of the mounting base (1), and the mounting component (2) is provided with a positioning post (3), the length direction of the positioning post (3) is parallel to the rotation axis of the mounting component (2); The movable part (4) is disposed on the positioning post (3), and the movable part (4) is slidably installed along the length direction of the positioning post (3); Two clamping mechanisms (5) are respectively disposed at both ends of the moving part (4), and the clamping mechanisms (5) are used to grip and fix the stress sensor; The threaded rod (6) is rotatably installed inside the shaft cavity of the mounting part (2), and the threaded rod (6) is fitted with the threaded through hole of the moving part (4); The drive motor (7) is located inside the cavity of the mounting base (1), and the output end of the drive motor (7) is installed in conjunction with the threaded rod (6). The drive motor (7) is used by the clamping mechanism (5) to drive the stress sensor to adjust the height. An adjustment mechanism (8) is provided inside the cavity of the mounting base (1), and the mounting component (2) is installed in cooperation with the adjustment mechanism (8). The adjustment mechanism (8) is used to switch the working positions of the two clamping mechanisms (5).

2. The stress sensor welding chucking mechanism according to claim 1, wherein The clamping mechanism (5) includes: Assembly (51) is located at one end of the movable part (4), and support shafts (52) are rotatably installed at two through holes symmetrically arranged on the assembly (51). Two support arms (53) are symmetrically and rotatably installed in the positioning holes at both ends of the assembly (51), and grippers (54) are rotatably installed on the support arms (53). Two connecting arms (55) are respectively mounted on two support shafts (52), and the two connecting arms (55) are respectively rotatably mounted in cooperation with two grippers (54); A power mechanism (56) is provided on the assembly (51), and the power mechanism (56) is installed in cooperation with the two support shafts (52). The power mechanism (56) is used to adjust the distance between the two grippers (54).

3. The stress sensor welding chucking mechanism according to claim 2, wherein The two rotation points of the support arm (53) and the connecting arm (55) on the assembly (51) and the two rotation points of the support arm (53) and the connecting arm (55) on the gripper (54) form a parallelogram structure.

4. The stress sensor welding chucking mechanism according to claim 2, wherein The power mechanism (56) includes: A cylinder (56a) is disposed on the assembly (51), and a rack (56b) is installed at the output end of the cylinder (56a). Two connecting gears (56c) are coaxially mounted on the two support shafts (52), and the rack (56b) meshes with the two connecting gears (56c).

5. The stress sensor welding chucking mechanism according to claim 1, wherein The adjustment mechanism (8) includes: A servo motor (81) is disposed inside the cavity of the mounting base (1), and a sector gear (82) is installed at the output end of the servo motor (81). The transmission gear (83) is coaxially mounted on the mounting component (2). The sector gear (82) meshes with the transmission gear (83), and the sector gear (82) and the transmission gear (83) mesh once to drive the mounting component (2) to rotate 180°.

6. The stress sensor welding chucking mechanism according to claim 5, wherein The servo motor (81) output end is also coaxially mounted with a positioning component (84), and two positioning grooves are symmetrically arranged on the transmission gear (83). The positioning component (84) is slidably installed with the positioning groove of the transmission gear (83), and when the sector gear (82) meshes with the transmission gear (83), the positioning component (84) is disengaged from the positioning groove.

7. The stress sensor welding chucking mechanism according to claim 6, wherein The servo motor (81) drives the sector gear (82) and the positioning component (84) to rotate 360° in a single start, and the servo motor (81) rotates in the opposite direction each time it starts compared to the previous start.

8. A welding machine for welding a stress sensor, characterized by, The clamping mechanism described in any one of claims 1 to 7 is adopted.

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