Infrared lens barrel lathe self-centering tool

Abstract

The utility model discloses an infrared lens barrel lathe is with self -centering tool, including locating seat and clamping mechanism, the side wall on locating seat has set up and given room to the horizontal direction slot, the top surface vertical of locating seat has set up and given direction hole, clamping mechanism includes the telescopic cylinder of locating seat, and the both sides of piston rod have set up and given sliding slot no.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically a self-centering tooling for an infrared telescope lathe. Background Technology

[0002] An infrared lens barrel is a component specifically designed for infrared optical systems. Infrared lens barrels are commonly used in surveillance systems, especially in environments requiring infrared illumination. Infrared lenses can effectively improve image quality, reduce infrared interference, and provide clearer images in low-light or nighttime conditions; for example... Figure 1 The infrared lens barrel 600 shown is composed of two interlocking half-lens barrels 601. The outer wall surface of the half-lens barrel 601 is an arc surface 602. When machining the annular groove 603 of the infrared lens barrel 600, it is usually necessary to perform separate positioning machining on the two half-lens barrels 601. Patent publication number CN211320544U discloses an automatic centering fixture for electrical connector pins. Specifically, it discloses a transmission slider slidably provided on the fixture seat. Two clamping sliders are arranged on the fixture seat along the same second straight line perpendicular to the first straight line and can move towards or away from each other. The two clamping sliders and two lever arms are symmetrical about the first straight line. The fulcrum of the lever arm is rotatably connected to the fixture seat. The resistance arm and the power arm of the lever arm are respectively connected to the two sides of the fulcrum. The end of the resistance arm is rotatably connected to the clamping slider. However, it has problems such as being only applicable to the positioning machining of a single half-lens barrel, low machining efficiency, and the clamping action of the clamping mechanism is not smooth and stable. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a self-centering tooling for infrared lens barrel lathes, which can simultaneously position two half-lenses, with high processing accuracy and efficiency. The self-centering clamping action is smooth and stable, and the positioning accuracy is high, which can effectively solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: An infrared lens barrel lathe is used from the centering tool, including the clamping mechanism that is equipped with the locating seat, the side wall of locating seat is equipped with the let -by slot along the horizontal direction, the side wall of locating seat is also equipped with the connecting hole, the top surface of locating seat is vertically equipped with the guide hole, the guide hole is rectangular through -hole structure, and let -by slot is communicated with the guide hole, the clamping mechanism includes telescopic cylinder, and the connecting bolt is passed through the connecting hole in fixed connection with locating seat, and the piston rod of telescopic cylinder extends to let -by slot, and the both sides of piston rod are equipped with sliding groove one along the radial direction, and sliding groove one is equipped with sliding block one in sliding, and the outer side end of sliding block one is rotatably connected with lever through the hinge pin, and the tail end of lever is rotatably connected with sliding block two through the hinge pin, and the middle position of lever is rotatably connected with locating seat through the hinge pin, the position of let -by slot is equipped with horizontally arranged Y type board, and the opening of Y type board is arranged to the opposite direction of sliding block two, and the front end surface of Y type board is equipped with the sliding groove two of adapting with sliding block two along the axial direction of piston rod, and sliding block two is nested in the sliding groove two of adapting with it, the both ears of Y type board end are equipped with clamping block, and the clamping block is nested in the guide hole of locating seat in sliding, and the clamping block can slide along the length direction of guide hole, and the length direction of guide hole is perpendicular to the axial direction of piston rod, and the clamping surface of clamping block is arc surface structure, the bottom of locating seat is fixedly equipped with bottom plate.

[0005] Further, the let -by slot of the locating seat is vertically equipped with the pin hole at the position corresponding to the hinge pin, and the hinge pin is rotatably connected in the pin hole corresponding to it.

[0006] Further, the locating seat is symmetrically equipped with the pre -pressing mechanism on the both side walls corresponding to the width direction of guide hole, and the pre -pressing mechanism includes the spring rod arranged along the length direction of guide hole, the spring rod is arranged between the upper and lower clamping blocks, and the telescopic end of spring rod is connected with the press wheel towards the inside, and the press wheel is the spindle roller structure.

[0007] Further, the back of clamping block is equipped with the pull rod along the length direction of guide hole, the tail end of pull rod is penetrated to the outside of locating seat and is equipped with the limit ring, and the reset spring is arranged between locating seat and limit ring on pull rod.

[0008] Compared with the prior art, the infrared lens barrel self-centering tool has the advantages that the two arc surfaces of the infrared lens barrel are pre-pressed by the pre-pressing mechanism, the two half lens barrels of the infrared lens barrel are prevented from being dislocated, then the infrared lens barrel is self-centered and clamped by the clamping mechanism, the two half lens barrels can be positioned at the same time, the machining precision is high, the machining efficiency is high, and the positioning precision is high; the piston rod is retracted by driving the piston rod to retract by the telescopic cylinder, the piston rod retraction drives the sliding block one to move to the outer side of the sliding groove one, the lever is pushed to rotate inward, the lever drives the sliding block two to move to the inner side of the sliding groove two, and the two Y-shaped plates on the two sides simultaneously drive the clamping blocks to relatively move along the guide holes at the same time, so that the self-centering clamping of the infrared lens barrel is realized, the self-centering clamping action of the clamping mechanism is smooth and stable, the positioning precision is high, and the machining efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a schematic view of the existing infrared lens barrel structure.

[0010] Figure 2 It is a schematic view of the structure of the utility model.

[0011] Figure 3 It is a schematic view of the positioning seat structure of the utility model.

[0012] Figure 4 It is a schematic view of the clamping mechanism structure of the utility model.

[0013] Figure 5 It is a transverse sectional view of the clamping mechanism of the utility model.

[0014] Figure 6 It is a longitudinal sectional view of the self-centering tool of the utility model.

[0015] Figure 7 It is a plan view when the pre-pressing wheel pre-presses the infrared lens barrel.

[0016] In the drawing: 1, positioning seat; 11, let go of the slot; 12, pin hole; 13, connecting hole; 14, guide hole; 15, bottom plate; 2, clamping mechanism; 21, telescopic cylinder; 22, piston rod; 221, sliding groove one; 23, sliding block one; 24, lever; 25, pin shaft; 26, sliding block two; 27, Y-shaped plate; 271, sliding groove two; 28, clamping block; 3, pre-pressing mechanism; 31, spring rod; 32, pre-pressing wheel; 4, pull rod; 5, return spring; 600, infrared lens barrel; 601, half lens barrel; 602, arc surface; 603, ring groove. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiments

[0018] Please refer to Figures 2-7 The utility model provides a kind of technical scheme: a self-centering tool for infrared lens barrel lathe, including the clamping mechanism 2 being equipped with on positioning seat 1, the side wall of positioning seat 1 is opened with let slot 11 along horizontal direction, positioning seat 1 is also opened with connecting hole 13 on this side wall, the top surface of positioning seat 1 is vertically opened with guide hole 14, guide hole 14 is rectangular through-hole structure, and let slot 11 is communicated with guide hole 14;The clamping mechanism 2 includes telescopic cylinder 21, and telescopic cylinder 21 is fixedly connected with positioning seat 1 by connecting bolt penetrating connecting hole 13, and the piston rod 22 of telescopic cylinder 21 extends to let slot 11, and the both sides of piston rod 22 are opened with sliding slot one 221 along its radial direction, and sliding block one 23 is slidably arranged in sliding slot one 221, and the outer side end of sliding block one 23 is rotatably connected with lever 24 by pin, and the tail end of lever 24 is rotatably connected with sliding block two 26 by pin, and lever 24 is rotatably connected with positioning seat 1 by pin shaft 25 at middle position;Positioning seat 1 is vertically opened with pin hole 12 in let slot 11 at the position corresponding to pin shaft 25, and pin shaft 25 is rotatably connected in the pin hole 12 corresponding thereto;Let slot 11 is equipped with horizontally arranged Y-shaped plate 27 at the position corresponding to sliding block two 26, and the opening of Y-shaped plate 27 is arranged in the direction opposite to sliding block two 26, and the front end surface of Y-shaped plate 27 is opened with sliding slot two 271 matched with sliding block two 26 along the axial direction of piston rod 22, and sliding block two 26 is slidably nested in the sliding slot two 271 corresponding thereto;Two lug plates on the tail end of Y-shaped plate 27 are each equipped with clamping block 28, and clamping block 28 is slidably nested in guide hole 14 of positioning seat 1, and clamping block 28 can slide along the length direction of guide hole 14, and the length direction of guide hole 14 is perpendicular to the axial direction of piston rod 22, and the clamping surface of clamping block 28 is arc surface structure;The bottom of positioning seat 1 is fixedly provided with bottom plate 15;

[0019] The width of guide hole 14 is matched with the width of infrared lens barrel 600.

[0020] The positioning seat 1 is symmetrically provided with a pre-pressing mechanism 3 on the two side walls corresponding to the width direction of the guide hole 14, the pre-pressing mechanism 3 comprises a spring rod 31 arranged along the length direction of the guide hole 14, the spring rod 31 is arranged between the upper and lower two clamping blocks 28, and the extension ends of the spring rod 31 are both directed to the inside and connected with a pressing wheel 32, and the pressing wheel 32 is a spindle-shaped roller structure.

[0021] Working principle:

[0022] The two half mirror tubes 601 are buckled to form the infrared mirror tube 600, the two circular arc surfaces 602 of the infrared mirror tube 600 are respectively directed to the circular arc clamping surfaces of the clamping blocks 28 on the corresponding sides, the infrared mirror tube 600 is vertically inserted into the guide hole 14 and abuts on the bottom plate 15, the spring rod 31 applies the elastic force to the pressing wheel 32 to pre-press the two circular arc surfaces 602 of the infrared mirror tube 600, so that the two half mirror tubes 601 of the infrared mirror tube 600 are prevented from being dislocated, and the width direction of the infrared mirror tube 600 is positioned through the guide hole 14 because the width of the guide hole 14 is matched with the width of the infrared mirror tube 600;

[0023] The telescopic cylinder 21 drives the piston rod 22 to contract, the piston rod 22 contraction drives the sliding block one 23 to move to the outside of the sliding groove one 221, the lever 24 is pushed to rotate to the inside, the lever 24 pulls the sliding block two 26 to move to the inside of the sliding groove two 271, and the two Y-shaped plates 27 simultaneously drive the clamping blocks 28 to simultaneously move along the guide hole 14 in opposite directions, so that the self-centering clamping of the infrared mirror tube 600 is realized, and the inner side surfaces of the two half mirror tubes 601 are machined to form the annular grooves 603 through the external machining machine tool.

[0024] After the machining is completed, the telescopic cylinder 21 drives the piston rod 22 to elongate, the piston rod 22 contraction drives the sliding block one 23 to move to the inside of the sliding groove one 221, the lever 24 is pulled to rotate to the outside, the lever 24 pulls the sliding block two 26 to move to the outside of the sliding groove two 271, and the two Y-shaped plates 27 simultaneously drive the clamping blocks 28 to simultaneously move away from each other along the guide hole 14, the clamping blocks 28 release the infrared mirror tube 600, and the machined infrared mirror tube 600 can be vertically taken out.

[0025] Further, the back of the clamping block 28 is provided with a pull rod 4 along the length direction of the guide hole 14, the ends of the pull rod 4 are all penetrated to the outside of the positioning seat 1 and are provided with a limiting ring, and the pull rod 4 is provided with a return spring 5 between the positioning seat 1 and the limiting ring; after the machining is completed, the pull rod 4 is pulled to quickly reset by the return spring 5, so that the machining efficiency is improved.

[0026] The infrared lens barrel self-centering tool for lathe disclosed by the embodiment firstly pre-presses two arc surfaces 602 of the infrared lens barrel 600 through the pre-pressing mechanism 3 to prevent the two half lens barrels 601 of the infrared lens barrel 600 from being dislocated, then self-centers and clamps the infrared lens barrel 600 through the clamping mechanism 2, and can simultaneously position the two half lens barrels 602, so that the machining precision, the machining efficiency and the positioning precision are high; the piston rod 22 is retracted by driving the piston rod 22 to retract through the telescopic cylinder 21, the piston rod 22 retraction drives the sliding block one 23 to move to the outside of the sliding groove one 221, the lever 24 is pushed to rotate to the inside, the lever 24 drives the sliding block two 26 to move to the inside of the sliding groove two 271, and the two Y-shaped plates 27 simultaneously drive the clamping blocks 28 to relatively move along the guide holes 14, so that the self-centering clamping of the infrared lens barrel 600 is realized, the self-centering clamping action of the clamping mechanism 2 is smooth, the positioning precision is high, and the machining efficiency is improved.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A self-centering fixture for an infrared telescope lathe, comprising a clamping mechanism on a positioning seat, characterized in that: A horizontal clearance groove is formed on one side wall of the positioning seat, and a connecting hole is also formed on this side wall. A vertical guide hole is formed on the top surface of the positioning seat. The guide hole is a rectangular through hole structure, and the clearance groove is connected to the guide hole. The clamping mechanism includes a telescopic cylinder, which is fixedly connected to the positioning seat through the connecting hole by a connecting bolt. The piston rod of the telescopic cylinder extends into the clearance groove. A sliding groove is formed on both sides of the piston rod in the radial direction. A slider is slidably mounted in the sliding groove. The outer ends of the slider are rotatably connected to levers by pins. The ends of the levers are rotatably connected to sliders by pins, and the middle position of the lever is connected to the... The positioning seat is rotatably connected; each of the corresponding slider two positions in the clearance groove is provided with a horizontally arranged Y-shaped plate, the opening of the Y-shaped plate is set in the opposite direction to the slider two, and the front end face of the Y-shaped plate is provided with a sliding groove two that matches the slider two along the axial direction of the piston rod. The slider two is slidably nested in the corresponding sliding groove two; each of the two ear plates at the end of the Y-shaped plate is provided with a clamping block, and the clamping block is slidably nested in the guide hole of the positioning seat. The clamping block can slide along the length direction of the guide hole, and the length direction of the guide hole is perpendicular to the axial direction of the piston rod. The clamping surface of the clamping block is an arc surface structure; the bottom end of the positioning seat is fixedly provided with a base plate.

2. The self-centering fixture for an infrared telescope lathe according to claim 1, characterized in that: The positioning seat has a vertically formed pin hole in the clearance groove at the position of the corresponding pin shaft, and the pin shaft is rotatably connected in the corresponding pin hole.

3. The self-centering fixture for an infrared telescope lathe according to claim 1, characterized in that: The positioning seat is symmetrically provided with pre-pressing mechanisms on both sides of the corresponding guide hole width direction. The pre-pressing mechanism includes a spring rod arranged along the length direction of the guide hole. The spring rod is arranged between the upper and lower clamping blocks, and the extension and retraction ends of the spring rod are all facing inward and connected to pressing wheels. The pressing wheels are all spindle-shaped roller structures.

4. The self-centering fixture for an infrared telescope lathe according to claim 1, characterized in that: The back of the clamping block is provided with a pull rod along the length of the guide hole. The end of the pull rod extends through to the outside of the positioning seat and is provided with a limiting ring. A return spring is provided on the pull rod between the positioning seat and the limiting ring.

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