A device for aligning and holding a hollow cathode lamp tube and lamp holder

Abstract

This utility model discloses a device for aligning and holding hollow cathode lamp tubes and lamp holders, belonging to the technical field of hollow cathode lamp processing equipment. It includes a lamp tube centering unit and a lamp holder rotating unit arranged vertically. The lamp tube centering unit includes: a three-jaw clamp with a clamping component adapted to the hollow cathode lamp tube at its lower end; a connecting frame for mounting the three-jaw clamp; two parallel and vertically arranged linear guides; a rodless cylinder with its cylinder body fixedly mounted between the two linear guides and its slider fixedly connected to the connecting frame; and a movable back plate on which the linear guides and the rodless cylinder are mounted. The lamp holder rotating unit includes: a rotating seat with upper positioning holes; a rotating bearing fitted onto the outside of the rotating seat; a table on which the rotating bearing is rotatably mounted; and a movable back plate fixedly mounted on the table. The lamp tube centering unit is located directly above the lamp holder rotating unit, and the central axis of the three-jaw clamp coincides with the rotational central axis of the rotating seat.

Description

Technical Field

[0001] This utility model belongs to the technical field of hollow cathode lamp processing equipment, specifically a device for aligning and holding hollow cathode lamp tubes and lamp holders. Background Technology

[0002] The technological evolution of hollow cathode lamps has always been closely intertwined with the needs of atomic spectroscopy analysis. The development of their manufacturing processes has consistently been the core driving force behind performance improvements and expanded application scenarios. The manual alignment of the lamp tube and holder relies on operator experience, requiring meticulous alignment of key positions such as the contact points and electrode channels between the lamp tube and holder. This process is time-consuming and can easily become a bottleneck in mass production, failing to meet rapid delivery requirements and exhibiting insufficient accuracy and stability. Manual operation is limited by hand stability and visual judgment errors, making it difficult to guarantee the repeatability of alignment accuracy each time (such as the coaxiality of the lamp tube axis and the conductive holes in the holder). This can lead to uneven stress on the lamp tube after bonding, poor electrode contact, and other problems, affecting the lifespan and spectral stability of the light source. This device can solve the drawbacks of manual operation and improve production capacity. Utility Model Content

[0003] To address the problems existing in the background technology, this utility model provides a device for aligning and holding a hollow cathode lamp tube and lamp holder. The technical solution is as follows:

[0004] A device for aligning and holding a hollow cathode lamp tube and its holder includes a lamp tube centering unit and a holder rotation unit arranged vertically. The lamp tube centering unit includes: a three-jaw clamp with a clamping component adapted to the hollow cathode lamp tube at its lower end; a connecting frame for mounting the three-jaw clamp; two parallel and vertically arranged linear guide rails; a rodless cylinder with its cylinder body fixedly mounted between the two linear guide rails and its slider fixedly connected to the connecting frame; and a movable back plate on which both the linear guide rails and the rodless cylinder are mounted. The holder rotation unit includes: a rotating base with positioning holes adapted to the hollow cathode lamp holder; a rotating bearing fitted onto the outside of the rotating base for supporting manual rotation of the rotating base; and a platform on which the rotating bearing is rotatably mounted. The movable back plate is fixedly mounted on the platform, and the lamp tube centering unit is located directly above the holder rotation unit, with the central axis of the three-jaw clamp coinciding with the rotational central axis of the rotating base.

[0005] In some embodiments, the clamp component has a rubber pad on its inner side.

[0006] In some embodiments, the movable back panel is provided with a height-adjusting component, and the linear guide rail is fixedly mounted on the height-adjusting component.

[0007] In some embodiments, the upper and lower ends of the rodless cylinder are fixed to a movable back plate by connectors.

[0008] In some embodiments, the three-jaw clamp is a pneumatic clamp or an electric clamp.

[0009] In some embodiments, a plurality of mounting optical axes are vertically arranged on the platform, and an optical axis fixing seat corresponding to the plurality of mounting optical axes is provided on the movable back plate. The mounting optical axes and the optical axis fixing seats are fitted together so that the lamp holder rotating unit and the lamp tube centering unit are connected through the optical axes, and the movable back plate can move up and down along the optical axes to adjust the overall stroke of the lamp tube centering unit.

[0010] In some embodiments, two mounting optical axes are provided, and four optical axis fixing seats are provided on the movable back plate, with each pair of optical axis fixing seats being fixedly connected to one mounting optical axis.

[0011] The beneficial effects of this utility model are as follows:

[0012] This solution includes a lamp centering unit and a lamp holder rotation unit to position the hollow cathode lamp and the hollow cathode lamp holder, respectively. Then, a three-jaw clamp is used to lock the hollow cathode lamp, driving the three-jaw clamp and the hollow cathode lamp fixed on it to move vertically downward. When the lower end of the hollow cathode lamp approaches the hollow cathode lamp holder, it is manually stopped from falling further. The other hand adjusts the angle of the rotating seat to align the terminal of the hollow cathode lamp with the wire hole of the hollow cathode lamp holder, releases the obstruction to allow it to continue to fall and insert, and waits for the glue to solidify, thus completing the coaxial installation of the hollow cathode lamp and the hollow cathode lamp holder. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the hollow cathode lamp tube and lamp holder alignment and holding device in this utility model.

[0014] The components include: lamp tube centering unit 1, connecting bracket 11, linear guide rail 12, rodless cylinder 13, movable back plate 14, conversion heightening component 15, optical axis fixing seat 16, lamp holder rotating unit 2, mounting optical axis 21, rotating seat 22, table 23, three-jaw clamp 3, clamp component 31, and rotary switch 4. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] A device for aligning and holding a hollow cathode lamp tube and a lamp holder includes a lamp tube centering unit 1 and a lamp holder rotating unit 2. The lamp tube centering unit 1 is located directly above the lamp holder rotating unit 2. The lamp tube centering unit 1 mainly undertakes the functions of lifting and centering the hollow cathode lamp.

[0017] The lamp centering unit 1 includes a three-jaw clamp 3. A clamping component 31, adapted to the hollow cathode lamp, is custom-fitted to the lower end of the three-jaw clamp 3. A rubber pad is provided on the inner side of the clamping component 31. This design effectively prevents direct contact between the glass hollow cathode lamp and the clamping component 31, thus avoiding damage to the lamp. The three-jaw clamp 3 is connected to the linear guide rail 12 via a connecting frame 11, providing lifting guidance. A rodless cylinder 13 is used for lifting and lowering between the two linear guide rails 12. This rodless cylinder 13 is a single-acting type, with compressed air only introduced and discharged at the lower end of the cylinder, thereby driving the entire lamp centering unit 1 to move up and down as a whole. Connectors are provided at both ends of the rodless cylinder 13 for fixing the cylinder. A conversion heightening component 15 is used below the linear guide rail 12 to connect the linear guide rail 12 to the movable back plate 14. Four optical axis fixing seats 16 are provided at the corners of the movable back plate 14, which are locked with the mounting optical axis 21, thereby realizing the adjustment of the total upper and lower stroke.

[0018] Lamp holder rotating unit 2: This unit is primarily responsible for the rotation and centering of the hollow cathode lamp holder. It features holes that fit snugly with the hollow cathode lamp holder, achieving centering through mechanical engagement. A clever structural design ensures concentricity between the unit and the lamp holder. The rotating base 22 has external bearings for easy manual rotation to align the hollow cathode lamp with the end terminals of the lamp holder. The entire unit is connected to the mounting optical shaft 21 via a platform 23 and two optical shaft fixing seats 16. The unit allows adjustment of the lifting stroke of the hollow cathode lamp centering structure to accommodate different lamp specifications. Two rotary switches 4 are located on the platform 23, controlling the operation of the three-jaw clamp 3 and the lifting of the rodless cylinder 13.

[0019] In the above embodiments, to achieve the desired coordinated control effect between the lamp centering unit 1 and the lamp holder rotation unit 2, an electronic control unit is also required. Its hardware can be installed below the lamp holder rotation unit 2. This unit primarily houses the pneumatic and electronic components of the entire device. It mainly includes multiple sets of pneumatic proportional valves controlling the pressure of the three-jaw clamp 3 to prevent glass breakage and the locking force provided by the rodless cylinder 13. Additionally, it includes pressure gauges and flow meters to control the lifting speed and manual blocking force of the rodless cylinder 13. Furthermore, a motion control card is provided as a logic processing center, capable of setting process parameters such as clamping force, lifting speed, and holding time for different product models. It also features fault alarms for abnormal air pressure, sensor malfunctions, and parameter recording functions.

[0020] In the above embodiments, the three-jaw clamp 3 can be a pneumatic clamp or an electric clamp.

[0021] The overall operation process of the equipment is as follows: Manually insert the hollow cathode lamp into the three-jaw clamp 3, set the hollow cathode lamp holder on the rotating seat 22, turn on the knob switch 4 to control the three-jaw clamp 3 to lock the hollow cathode lamp, then put the hollow cathode lamp holder with glue applied into the rotating seat 22, turn on another knob switch 4 to make the three-jaw clamp 3 and the hollow cathode lamp fixed on it move vertically downward. When the lower end of the hollow cathode lamp is close to the hollow cathode lamp holder, manually stop it from falling further. With the other hand, adjust the angle of the rotating seat 22 so that the terminal of the hollow cathode lamp end is aligned with the wire hole of the hollow cathode lamp holder, release the obstruction to allow it to continue to fall and insert, and wait for the glue to solidify, thus completing the coaxial installation requirement of the hollow cathode lamp and the hollow cathode lamp holder.

Claims

1. A device for aligning and holding a hollow cathode lamp tube and a lamp holder, characterized in that, It includes a lamp tube centering unit (1) and a lamp holder rotating unit (2) set at the top and bottom: The lamp centering unit (1) includes: The three-jaw clamp (3) has a clamping component (31) at its lower end that is adapted to the hollow cathode lamp tube. Connecting frame (11), on which the three-jaw clamp (3) is installed; Two parallel and vertically arranged linear guides (12); The rodless cylinder (13) has its cylinder body fixedly installed between two linear guide rails (12), and its slider is fixedly connected to the connecting frame (11); The movable backplate (14) is provided with the linear guide (12) and the rodless cylinder (13). The lamp holder rotating unit (2) includes: Rotary seat (22) is provided with positioning holes adapted to hollow cathode lamp holder; A rotating bearing is fitted onto the outside of the rotating seat (22) to support the manual rotation of the rotating seat (22); The tabletop (23) on which the rotating bearing is rotatably mounted; The movable back plate (14) is fixedly installed on the table (23), the lamp tube centering unit (1) is located directly above the lamp holder rotating unit (2), and the central axis of the three-jaw clamp (3) coincides with the rotation center axis of the rotating seat (22).

2. The hollow cathode lamp tube and lamp holder alignment and holding device according to claim 1, characterized in that: The clamp (31) has a rubber pad on its inner side.

3. The hollow cathode lamp tube and lamp holder alignment and holding device according to claim 1, characterized in that: The movable back panel (14) is provided with a conversion height-increasing component (15), and the linear guide rail (12) is fixedly installed on the conversion height-increasing component (15).

4. The hollow cathode lamp tube and lamp holder alignment and holding device according to claim 1, characterized in that: The upper and lower ends of the rodless cylinder (13) are fixed to the movable back plate (14) by connectors.

5. The hollow cathode lamp tube and lamp holder alignment and holding device according to claim 1, characterized in that: The three-jaw clamp (3) is a pneumatic clamp or an electric clamp.

6. The hollow cathode lamp tube and lamp holder alignment and holding device according to claim 1, characterized in that: A plurality of mounting optical axes (21) are vertically arranged on the platform (23), and optical axis fixing seats (16) corresponding to the plurality of mounting optical axes (21) are provided on the movable back plate (14). The mounting optical axes (21) and the optical axis fixing seats (16) are fitted together, so that the lamp holder rotating unit (2) and the lamp tube centering unit (1) are connected through the optical axis, and the movable back plate (14) can move up and down along the optical axis to adjust the overall stroke of the lamp tube centering unit (1).

7. The hollow cathode lamp tube and lamp holder alignment and holding device according to claim 1, characterized in that: Two mounting optical axes (21) are provided, and four optical axis fixing seats (16) are provided on the movable back plate (14). Each pair of optical axis fixing seats (16) is fixedly connected to one mounting optical axis (21).

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