Press-fitting displacement regulator for optical fiber sensor

Abstract

The utility model discloses an optical fiber sensor press fitting displacement regulator which comprises a transverse plate, an inverted-T-shaped horizontal table arranged on one side of the top end of the transverse plate, a main limiting block fixed to one side of the top end of the inverted-T-shaped horizontal table and a lead screw distance adjusting structure installed on the other side of the top end of the inverted-T-shaped horizontal table. An auxiliary limiting block used for being matched with the main limiting block and clamping an upper shell workpiece and a lower shell workpiece of the optical fiber sensor is installed at the moving end of the lead screw distance adjusting structure, and a pneumatic double-shaft displacement unit used for controlling the X-axis horizontal position and the Z-axis position of the inverted-T-shaped horizontal table is installed on the outer wall of the transverse plate. Through the design that the screw rod distance adjusting structure drives the auxiliary limiting block to be close to the main limiting block and fixes the upper shell and the lower shell to be pressed, the relative positions of the upper shell and the lower shell and the press-fitting plate of the press-fitting device are accurately controlled in combination with the adjustment of the pneumatic double-shaft displacement unit.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic sensor processing equipment technology, specifically to a fiber optic sensor press-fit displacement adjuster. Background Technology

[0002] Fiber optic sensors have important applications in measuring physical quantities such as pressure, temperature, and displacement. The assembly process of their upper and lower housings requires a press-fitting device to ensure the sensor's performance and long-term stability. The main function of the press-fitting device is to firmly connect the upper and lower housings, forming a sealed measuring unit. This prevents external environmental factors (such as humidity, dust, and chemicals) from affecting the internal optical fiber, thereby improving signal transmission efficiency and accuracy. Furthermore, proper press-fitting provides mechanical protection against damage from external impacts or vibrations to the sensor and helps regulate the tension of the optical fiber, ensuring its stable position and avoiding measurement errors. A press-fitting device typically consists of a press-fitting frame, a press-fitting plate, a pressure application device, and a positioning device. The press-fitting frame, as the main structure, provides strength and stability. The press-fitting plate applies pressure, and the pressure is controlled by an adjustment device. The pressure application device can be a manual screw press, a hydraulic or pneumatic device, while the positioning device ensures accurate alignment of the upper and lower housings during the press-fitting process. Its working principle is based on the transmission and uniform distribution of force. The applied pressure is evenly transmitted to the upper and lower shells through the pressing plate, ensuring that the shells can be tightly joined and form a stable whole as the pressure gradually increases. However, the pressing plate of the pressing device generally only moves up and down in the Z-axis direction and applies pressure to the upper and lower shells. Once the specifications of the upper and lower shells change, such as changes in size or shape, the contact point between the pressing plate and the shell changes. This change in the contact point will cause the applied pressure to no longer be evenly distributed, resulting in insufficient pressure or overload in some areas, affecting the pressing effect. Utility Model Content

[0003] The purpose of this utility model is to provide a fiber optic sensor press-fit displacement adjuster, which uses a lead screw adjustment structure to drive a secondary limiting block to approach and fix the upper and lower housings to be press-fitted. After the upper and lower housings are fixed, a pneumatic dual-axis displacement unit adjusts the spatial position of the lead screw adjustment structure, the main limiting block, the secondary limiting block, and the upper and lower housings, so that the upper and lower housings are adjusted to a suitable position below the press-fitting plate of the press-fitting device, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fiber optic sensor press-fit displacement adjuster, comprising a horizontal plate, a convex platform disposed on one side of the top of the horizontal plate, a main limiting block fixed on one side of the top of the convex platform, and a lead screw adjustment structure installed on the other side of the top of the convex platform. The moving end of the lead screw adjustment structure is equipped with a secondary limiting block for cooperating with the main limiting block and clamping the upper and lower housing workpieces of the fiber optic sensor. A pneumatic dual-axis displacement unit for controlling the horizontal position of the convex platform along the X-axis and the position of the convex platform along the Z-axis is installed on the outer wall of the horizontal plate.

[0005] Preferably, a machine foot seat is bolted to one outer wall of the convex-shaped platform, and the machine foot seat and the main limiting block are in contact with each other and bolted together.

[0006] Preferably, trapezoidal grooves are provided on the opposite outer walls of the main limiting block and the secondary limiting block.

[0007] Preferably, the lead screw adjustment structure includes a concave shaft fixed on one side of the outer wall of the convex-shaped platform, a threaded rod rotatably installed inside the concave shaft, an I-shaped sleeve slidably installed at one end inside the concave shaft, and a pad fixed to the top of the I-shaped sleeve. The top of the pad is fixedly connected to the bottom of the secondary limiting block. A nut pair is fixed to one end of the surface of the threaded rod, and the nut pair is fixedly connected to the I-shaped sleeve.

[0008] Preferably, the pneumatic dual-axis displacement unit includes a slide block slidably mounted on one side of the horizontal plate surface, a double-rod cylinder mounted on the outer wall of one side of the slide block, and an X-axis cylinder mounted on one side of the horizontal plate surface. The top end of the piston rod of the X-axis cylinder is fixedly connected to the bottom end of the slide block, and the top end of the piston rod of the double-rod cylinder is fixedly connected to the bottom end of the convex-shaped platform.

[0009] Preferably, both the main limiting block and the secondary limiting block are made of hard rubber.

[0010] Compared with existing technologies, the advantages of this utility model are as follows: This fiber optic sensor press-fit displacement adjuster uses a screw-adjustable structure to drive the secondary limit block close to the main limit block and fix the upper and lower housings to be press-fitted. Combined with the adjustment of the pneumatic dual-axis displacement unit, it precisely controls the relative position of the upper and lower housings and the press-fitting plate of the press-fitting device, ensuring that the upper and lower housings can be perfectly aligned during the press-fitting process, avoiding uneven press-fitting or poor sealing caused by positional deviation. Before each press-fitting, the operator uses the pneumatic dual-axis displacement unit to adjust the position of the screw-adjustable structure, the main limit block, and the secondary limit block according to the actual situation of the upper and lower housings, ensuring that the pressure and position applied by the press-fitting device are always kept in the optimal state, reducing the scrap rate caused by improper press-fitting position and uneven press-fitting pressure. Secondly, the operator only needs to operate the screw-adjustable structure and adjust the pneumatic dual-axis displacement unit to complete the fixing of the upper and lower housings and the adjustment of the press-fitting position, reducing the complexity of manual intervention and the possibility of operational errors. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a side view of the structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the convex-shaped reclining platform of this utility model.

[0016] In the diagram: 1. Horizontal plate; 2. Pneumatic dual-axis displacement unit; 201. X-axis cylinder; 202. Slide block; 203. Double rod cylinder; 3. Convex horizontal platform; 4. Machine foot base; 5. Main limit block; 6. Screw adjustment structure; 601. Concave shaft platform; 602. I-beam sliding sleeve; 603. Threaded rod; 604. Pad block; 7. Secondary limit block; 8. Trapezoidal groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5 An embodiment of this utility model is provided: a fiber optic sensor press-fit displacement adjuster, including a horizontal plate 1, a convex platform 3 set on one side of the top of the horizontal plate 1, a main limiting block 5 fixed on one side of the top of the convex platform 3, and a screw adjustment structure 6 installed on the other side of the top of the convex platform 3. The moving end of the screw adjustment structure 6 is equipped with a secondary limiting block 7 for cooperating with the main limiting block 5 and clamping the upper and lower housing workpieces of the fiber optic sensor. The main limiting block 5 and the secondary limiting block 7 are both made of hard rubber. A pneumatic dual-axis displacement unit 2 for controlling the horizontal position of the convex platform 3 on the X-axis and the Z-axis is installed on the outer wall of the horizontal plate 1.

[0019] The convex-shaped platform 3 has a large contact area, which can provide good stability for the housing and ensure that the workpiece will not be displaced or tilted during processing or assembly. The machine foot seat 4 is bolted to one side of the outer wall of the convex-shaped platform 3. The machine foot seat 4 and the main limit block 5 are in contact with each other and bolted together.

[0020] Trapezoidal grooves 8 are provided on the opposite outer walls of the main limiting block 5 and the secondary limiting block 7. The trapezoidal grooves 8 make the main limiting block 5 and the secondary limiting block 7 fit more stably with the upper and lower shells.

[0021] The lead screw adjustment structure 6 includes a concave shaft 601 fixed on one side of the outer wall of the convex-shaped platform 3, a threaded rod 603 rotatably installed inside the concave shaft 601, an I-shaped sleeve 602 slidably installed at one end inside the concave shaft 601, and a pad 604 fixed at the top of the I-shaped sleeve 602. The top of the pad 604 is fixedly connected to the bottom of the secondary limit block 7. A nut pair is fixed at one end of the surface of the threaded rod 603. The nut pair and the I-shaped sleeve 602 are fixedly connected. When fixing the upper and lower shells, the operator manually rotates the threaded rod 603. The threaded rod 603 drives the I-shaped sleeve 602, the pad 604, and the secondary limit block 7 to move closer to or away from the main limit block 5 through the nut pair. This allows the shell workpiece to be initially fixed. By limiting the range of motion of the workpiece, the accuracy of subsequent assembly or processing is improved.

[0022] The pneumatic dual-axis displacement unit 2 includes a slide block 202 slidably mounted on one side of the surface of the horizontal plate 1, a double-rod cylinder 203 mounted on the outer wall of one side of the slide block 202, and an X-axis cylinder 201 mounted on one side of the surface of the horizontal plate 1. The top end of the piston rod of the X-axis cylinder 201 is fixedly connected to the bottom end of the slide block 202, and the top end of the piston rod of the double-rod cylinder 203 is fixedly connected to the bottom end of the convex-shaped platform 3. The X-axis cylinder 201 drives the slide block 202, the double-rod cylinder 203, the convex-shaped platform 3, and other components to move in the horizontal direction, while the double-rod cylinder 203 pushes the convex-shaped platform 3, the machine foot 4, the main limit block 5, the lead screw adjustment structure 6, and the workpiece to move in the Z-axis direction, thereby adjusting the positional relationship between the workpiece and the pressure plate to meet different specifications of workpieces and operational requirements.

[0023] In this embodiment, the upper and lower housings of the fiber optic sensor to be press-fitted are first prepared, ensuring their surfaces are free of oil and dust to avoid affecting the sealing effect. Then, the lower housing is placed on the convex platform 3, ensuring its end contacts the main limiting block 5. The upper housing is then gently placed on top of the lower housing, ensuring alignment and initial connection. Using the lead screw adjustment structure 6, the secondary limiting block 7 is brought close to the main limiting block 5 and contacts the aligned upper and lower housings until the main limiting block 5 and secondary limiting block 7 clamp the upper and lower housings. After the upper and lower housings are fixed, pneumatic biaxial displacement is used. Unit 2 precisely adjusts the spatial positions of the convex platform 3, main limiting block 5, lead screw adjustment structure 6, secondary limiting block 7, and housing to adjust the horizontal and Z-axis positions of the housing, ensuring that the housing is in the correct position under the pressing plate of the pressing device. After confirming that the positions of the upper and lower housings are correct, the pressing device is started to prepare to apply pressure. The pressing device applies pressure evenly to the upper and lower housings to ensure uniform pressure distribution during the pressing process, so as to avoid local overpressure or underpressure. After the pressing is completed, the applied pressure is slowly released, and the sealing of the pressed upper and lower housings is checked to ensure that they meet the design requirements.

Claims

1. A fiber optic sensor press-fit displacement adjuster, characterized in that: It includes a horizontal plate (1), a convex-shaped platform (3) set on one side of the top of the horizontal plate (1), a main limiting block (5) fixed on one side of the top of the convex-shaped platform (3), and a screw adjustment structure (6) installed on the other side of the top of the convex-shaped platform (3). The moving end of the screw adjustment structure (6) is equipped with a secondary limiting block (7) for cooperating with the main limiting block (5) and clamping the upper and lower housing workpieces of the fiber optic sensor. A pneumatic dual-axis displacement unit (2) for controlling the horizontal position of the convex-shaped platform (3) on the X-axis and the Z-axis is installed on the outer wall of the horizontal plate (1).

2. The fiber optic sensor press-fit displacement adjuster according to claim 1, characterized in that: A machine foot seat (4) is bolted to one side of the outer wall of the convex-shaped platform (3), and the machine foot seat (4) and the main limiting block (5) are in contact with each other and bolted together.

3. The fiber optic sensor press-fit displacement adjuster according to claim 1, characterized in that: Trapezoidal grooves (8) are provided on the opposite outer walls of the main limiting block (5) and the secondary limiting block (7).

4. The fiber optic sensor press-fit displacement adjuster according to claim 1, characterized in that: The lead screw adjustment structure (6) includes a concave shaft platform (601) fixed on the outer wall of one side of the convex platform (3), a threaded rod (603) rotatably installed inside the concave shaft platform (601), an I-shaped sleeve (602) slidably installed at one end inside the concave shaft platform (601), and a pad (604) fixed at the top of the I-shaped sleeve (602). The top of the pad (604) is fixedly connected to the bottom of the secondary limiting block (7). A nut pair is fixed at one end of the surface of the threaded rod (603), and the nut pair is fixedly connected to the I-shaped sleeve (602).

5. The fiber optic sensor press-fit displacement adjuster according to claim 1, characterized in that: The pneumatic dual-axis displacement unit (2) includes a slide (202) slidably mounted on one side of the surface of the horizontal plate (1), a double-rod cylinder (203) mounted on the outer wall of one side of the slide (202), and an X-axis cylinder (201) mounted on one side of the surface of the horizontal plate (1). The top end of the piston rod of the X-axis cylinder (201) is fixedly connected to the bottom end of the slide (202), and the top end of the piston rod of the double-rod cylinder (203) is fixedly connected to the bottom end of the convex-shaped platform (3).

6. The fiber optic sensor press-fit displacement adjuster according to claim 1, characterized in that: Both the main limiting block (5) and the secondary limiting block (7) are made of hard rubber.

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