A focal meter measuring seat assembly mechanism

Abstract

The present application discloses a focal meter measuring seat assembly mechanism, comprising a grid seat (4) mounted on a focal meter measuring base (5), a grid graticule plate mounted on the upper end of the grid seat (4), a measuring support seat (2) sleeved on the outside of the grid seat (4), and a lens seat (1) mounted on the upper end of the measuring support seat (2). The measured lens is placed on the lens seat (1), and the measuring support seat (2) and the lens seat (1) are detachably connected. The beneficial effects thereof are the same as those of the focal meter measuring seat assembly mechanism. The measuring support seat of the focal meter measuring seat assembly mechanism is a metal machined part with high processing accuracy, which is used for the reference positioning and installation of the whole machine. The measuring support seat and the lens seat are separately formed and assembled with high processing accuracy; the structure is simple, and the assembly accuracy and positioning accuracy of the lens seat, the measuring support seat and the grid seat are high, and the reliability is high.

Description

Technical Field

[0001] The present application relates to the technical field of focal meter, and in particular to a focal meter measuring seat assembly mechanism. Background Art

[0002] The conventional focal meter measurement support mechanism usually has an independent structure of the measurement support seat. This structure is usually formed by integral injection molding, and the processing precision is not high. Therefore, the installation precision in combination with the grid support seat is low. In addition, when the end of the supporting lens is worn, the measurement support seat needs to be replaced as a whole, which affects the initial reference and the replacement cost is relatively high.

[0003] In summary, how to effectively solve the problems of low installation accuracy and relatively high replacement cost of the traditional focal meter measurement support mechanism is an urgent problem that technicians in this field need to solve.

[0004] Application Contents

[0005] The purpose of the present application is to provide a focal meter measuring seat assembly mechanism, which has high positioning accuracy, convenient replacement of measuring wearable parts, and low cost.

[0006] In order to solve the above technical problems, this application provides the following technical solutions:

[0007] A focal meter measuring seat assembly mechanism comprises a grid seat mounted on a focal meter measuring base, a grid graticule mounted on the upper end of the grid seat, a measuring support seat sleeved on the outside of the grid seat, and a lens seat mounted on the upper end of the measuring support seat. A lens to be measured is placed on the lens seat, and the measuring support seat and the lens seat are detachably connected.

[0008] Preferably, the upper inner portion of the measuring support seat has an annular groove, and the lower end of the lens holder has a boss, which is inserted into the annular groove.

[0009] Preferably, the lens holder comprises a holder body and a plurality of elastic claws fixed below the holder body, the boss is fixed to the lower end of the elastic claws, and the lower surface of the holder body overlaps the upper end surface of the measurement support seat.

[0010] Preferably, the lens holder is made of TPU.

[0011] Preferably, the grid graticule plate is bonded to the upper end of the grid support with the graticule surface facing downward.

[0012] Preferably, the upper end of the grid support has a step hole, and the grid graticule is bonded into the step hole.

[0013] Preferably, the measuring base and the grid support are connected by fastening screws.

[0014] The focal meter measuring seat assembly mechanism provided in the present application comprises a grid seat, a grid graticule, a measuring support seat and a lens seat. The grid seat is mounted on the focal meter measuring base and the grid graticule is mounted on the upper end of the grid seat.

[0015] The measuring support seat has a fitting hole, the measuring support seat is fitted on the outside of the grid support seat, the lens support seat is installed on the upper end of the measuring support seat, the measured lens is placed on the lens support seat, and the measuring support seat and the lens support seat can rotate around the grid support seat. The measuring support seat and the grid support seat are both convex structures, the lower end face of the measuring support seat abuts against the end face of the grid support seat, and the stability of the connection between the measuring support seat and the grid support seat is good.

[0016] The measuring support seat and the lens holder are detachably connected. The lens holder will wear out due to repeated use. When the lens holder is worn out and loses accuracy, it is only necessary to remove the lens holder from the measuring support seat and replace only the lens holder. The measuring support seat does not need to be replaced, so there is no impact on the initial measurement benchmark and the cost is low.

[0017] The focal meter measurement support assembly mechanism provided in the present application has a measurement support assembly which is a metal machined part with high processing accuracy and is used for the reference positioning and installation of the whole machine. The measurement support assembly and the lens assembly are formed separately and assembled together with the lens assembly, and have high processing accuracy. The structure is simple, and the assembly and positioning accuracy of the lens assembly, the measurement support assembly and the grid assembly are high, and the reliability is high. The measurement support assembly is a wearable part, and is used to support the lens measurement. The lens assembly, which is a wearable part, can be replaced separately, and the replacement is convenient. After replacement, there is no influence on the initial reference, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a focal meter measurement provided in a specific implementation manner of the present application;

[0020] Figure 2 for Figure 1 A partial enlarged view of the focal meter measurement support assembly mechanism at point A in the middle.

[0021] The following are marked in the accompanying drawings:

[0022] 1-lens holder, 2-measurement support seat, 3-array image graticule, 4-grid holder, 5-measurement base, 6-fastening screws. DETAILED DESCRIPTION

[0023] The core of the present application is to provide a focal meter measuring seat assembly mechanism, which has high positioning accuracy, convenient replacement of measuring wearable parts, and low cost.

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] Please refer to Figure 1 to Figure 2 , Figure 1 A schematic diagram of the structure of a focal meter measurement provided in a specific implementation manner of the present application; Figure 2 for Figure 1 A partial enlarged view of the focal meter measurement support assembly mechanism at point A in the middle.

[0026] In a specific embodiment, the focal meter measurement seat assembly mechanism provided in the present application includes a grid seat 4 installed on the focal meter measurement base 5, a grid graticule installed on the upper end of the grid seat 4, a measurement support seat 2 mounted on the outside of the grid seat 4, and a lens seat 1 installed on the upper end of the measurement support seat 2. The lens to be measured is placed on the lens seat 1, and the measurement support seat 2 and the lens seat 1 are detachably connected.

[0027] In the above structure, the focal meter measurement seat assembly mechanism includes a grid seat 4, a grid graticule, a measurement support seat 2, and a lens seat 1. The grid seat 4 is installed on the focal meter measurement base 5, and the grid graticule is installed on the upper end of the grid seat 4.

[0028] The measuring support seat 2 has a fitting hole, the measuring support seat 2 is fitted on the outside of the grid support seat 4, the lens support seat 1 is installed on the upper end of the measuring support seat 2, the measured lens is placed on the lens support seat 1, and the measuring support seat 2 and the lens support seat 1 can rotate around the grid support seat 4. The measuring support seat 2 and the grid support seat 4 are both convex structures, the lower end face of the measuring support seat 2 abuts against the end face of the grid support seat 4, and the connection stability of the measuring support seat 2 and the grid support seat 4 is good.

[0029] The measuring support seat 2 and the lens holder 1 are detachably connected. The lens holder 1 is worn out due to repeated use. When the lens holder 1 is worn out and loses accuracy, it is only necessary to remove the lens holder 1 from the measuring support seat 2 and replace only the lens holder 1. The measuring support seat 2 does not need to be replaced, so there is no impact on the initial measurement benchmark and the cost is low.

[0030] The focal meter measuring seat combination mechanism provided in the present application has a measuring support seat 2 which is a metal machined part with high processing accuracy and is used for the reference positioning and installation of the whole machine. The measuring support seat 2 and the lens seat 1 are formed separately and assembled together with high processing accuracy. The structure is simple, and the lens seat 1 and the measuring support seat 2 are assembled with the grid seat 4 with high installation accuracy and positioning accuracy, and the reliability is high. The measuring support seat 2 is a wearable part and is used to support lens measurement. The lens seat 1, which is a wearable part, can be replaced separately, which is convenient and has no effect on the initial reference after replacement, and the cost is low.

[0031] The above-mentioned focal meter measurement support assembly mechanism is only a preferred solution and is not limited to this. On this basis, targeted adjustments can be made according to actual needs to obtain different implementation methods. The upper inner part of the measurement support seat 2 has an annular groove, and the lower end of the lens seat 1 has a boss. The annular groove is slightly larger than the boss, which facilitates the boss to be inserted into the annular groove.

[0032] When connected, the lens holder 1 is detachably connected to the measuring support seat 2 by snapping; when disassembly is required, the boss is removed from the annular groove and upward, and the lens holder 1 can be disassembled from the measuring support seat 2. The structure is simple and the operation is convenient.

[0033] To further optimize the above technical solution, technicians in this field can make several changes to the above specific implementation methods according to different specific occasions. The lens holder 1 includes a holder body and a plurality of elastic claws fixed under the holder body, the boss is fixed to the lower end of the elastic claws, and the lower surface of the holder body overlaps the upper end surface of the measurement support seat 2.

[0034] In the above structure, the lens holder 1 includes a holder body and a plurality of elastic claws, the plurality of elastic claws are fixed to the bottom of the holder body, the plurality of elastic claws are spaced apart and distributed in an annular manner, the plurality of elastic claws are cylindrical in shape as a whole, and are fitted into the fitting hole. The boss is fixed to the lower end of the elastic claw, and the elastic claw can shrink toward the center, so that the boss can be easily clamped in the annular groove or removed from the annular groove.

[0035] The outer diameter of the multiple elastic claws is smaller than the disk surface of the seat body, and the multiple elastic claws are just assembled in the set hole. The lower surface of the seat body overlaps the upper end surface of the measuring support seat 2. The upper end surface of the measuring support seat 2 has a supporting and positioning function for the lens seat 1, ensuring the installation and positioning accuracy of the measuring support seat 2 and the lens seat 1.

[0036] On the basis of the above-mentioned specific embodiments, those skilled in the art can make several changes to the focus meter measuring seat assembly mechanism according to different specific occasions. The material of the lens seat 1 is TPU, that is, thermoplastic polyurethane elastomer rubber, which is a special soft wear-resistant material with good wear resistance, reducing the wear of the lens seat 1; good elasticity to ensure that the boss and the annular groove are easy to connect; high mechanical strength, outstanding load-bearing capacity, impact resistance and shock absorption performance to ensure the installation stability of the measured lens; good processing performance and easy processing.

[0037] In another more reliable embodiment, based on any of the above embodiments, the grid graticule plate is bonded to the upper end of the grid support 4 with the graticule surface facing downward, and is installed with the graticule surface facing downward, thereby reducing impurities from falling onto the graticule surface of the grid graticule plate. This can effectively reduce daily cleaning and maintenance of the grid graticule plate, reduce damage to the array graticule surface during cleaning and maintenance, prevent measurement inaccuracies, and ensure measurement accuracy.

[0038] The above technical solution is further optimized, the upper end of the grid support 4 has a step hole, the grid grating plate is bonded in the step hole, the grid grating plate abuts on the step surface of the step hole, and the step surface of the step hole has a supporting effect on the grid grating plate. The adhesive is applied to the step surface of the step hole, and the grid grating plate and the grid support 4 are convenient to connect and the bonding is relatively firm.

[0039] In another more reliable embodiment, based on any of the above embodiments, the measuring base 5 and the grid support 4 are connected by fastening screws 6, which is convenient to connect and easy to disassemble. Of course, the connection between the measuring base 5 and the grid support 4 by fastening screws 6 is only a preferred embodiment, not the only one. The measuring base 5 and the grid support 4 can also be connected by snap connection, eliminating the connection parts.

[0040] In order to conveniently explain the installation process of the focal meter measurement support assembly mechanism, the above features are combined for explanation below.

[0041] Glue the array image graticule plate 3 with the graticule surface facing downward to the step hole at the upper end of the grid support seat 4, and install the array image graticule plate 3 and the grid support seat 4 combination on the measurement base 5, and fasten it with multiple fastening screws 6. Then install the lens support seat 1 on the upper end of the measurement support seat 2, and at the same time, the end boss of the lens support seat 1 is inserted into the annular groove of the measurement support seat 2, and then install the lens support seat 1 and the measurement support seat 2 combination on the grid support seat 4, which is convenient for connection.

[0042] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0043] The above is a detailed introduction to the focal meter measurement support assembly mechanism provided by the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application. Therefore, the present application will not be limited to the embodiments shown in this article, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A focal meter measuring seat assembly mechanism, characterized in that: The invention comprises a grid support (4) mounted on a focal meter measurement base (5), a grid graticule mounted on the upper end of the grid support (4), a measurement support (2) sleeved on the outside of the grid support (4), and a lens support (1) mounted on the upper end of the measurement support (2); the lens to be measured is placed on the lens support (1); the measurement support (2) and the lens support (1) are detachably connected; the upper inner portion of the measurement support (2) has an annular groove; the lower end of the lens support (1) has a boss, the boss is inserted into the annular groove, and the lens support (1) is The seat (1) comprises a seat body and a plurality of elastic claws fixed below the seat body, the boss being fixed to the lower end of the elastic claws, the outer diameter of the plurality of elastic claws being smaller than the disk surface of the seat body, the plurality of elastic claws being just assembled in the set hole, the lower surface of the seat body being overlapped with the upper end surface of the measuring support seat (2), the upper end surface of the measuring support seat (2) having a supporting and positioning function for the lens seat (1), the lens seat (1) being made of TPU, and being installed with the scale surface facing downwards, and the scale surface of the grid scale plate being bonded to the upper end of the grid seat (4) with the scale surface facing downwards.

2. The focal meter measuring seat assembly mechanism according to claim 1, characterized in that: The upper end of the grid support (4) is provided with a step hole, and the grid dividing plate is bonded in the step hole.

3. The focal meter measuring seat assembly mechanism according to claim 1, characterized in that: The measuring base (5) and the grid support (4) are connected via fastening screws (6).

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