Low-light objective lens barrel die-casting die

Abstract

The utility model discloses a low-light objective lens barrel die-casting die which comprises an upper die base and a lower die base arranged below the upper die base, the upper end face of the lower die base is provided with a model groove and an upper edge groove, an inner die body is arranged in the model groove, the inner die body is placed in the model groove, and the central axis of the model groove coincides with the central axis of the lower die base. An inner extending rod is fixed to the lower end face of the upper die base, a positioning block is fixed to the lower end face of the inner extending rod, the inner extending rod and the positioning block are both arranged in an upper edge groove, an inner edge groove is formed in the upper edge groove, a spring and a sliding block fixedly connected with the spring are arranged in the inner edge groove, and a fixing rod is fixedly connected to the end, away from the spring, of the sliding block. A receiving base is arranged at the end, away from the sliding block, of the fixing rod, and the fixing rod penetrates through the inner edge groove and is in contact connection with the receiving base. According to the low-light-level objective lens barrel die-casting die, the inner die body is positioned in multiple directions, position deviation between the inner die body and the lower die base is avoided, and asymmetry of the two sides of a manufactured low-light-level objective lens barrel shell is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a die casting mould, concretely is a micro light objective lens barrel die casting mould. BACKGROUND

[0002] ‌Micro light objective lens barrel is a kind of objective lens barrel specially used to observe in micro light environment.This kind of objective lens barrel usually has higher light transmittance and lower light scattering characteristics, can provide clear image in the environment of light relatively dark.Micro light objective lens barrel is often used in scientific research, medical treatment and military fields.

[0003] ‌The shell of micro light objective lens barrel is made by die casting mould, and the die casting mould for processing the shell of micro light objective lens barrel is used currently, the die body for containing the workpiece to be punched in the mould usually position can not be fixed completely, and the vibration caused by impact force during the process of upper die holder and lower die holder clamping can cause the die body to produce slight displacement, resulting in the slight asymmetry of the both sides of the micro light objective lens barrel shell made, thereby reducing the yield. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of micro light objective lens barrel die casting mould, position from multiple directions to inner die body, avoid the position deviation between inner die body and lower die holder, avoid the asymmetry of the both sides of the micro light objective lens barrel shell made, improve yield.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of micro light objective lens barrel die casting mould, including upper die holder and the lower die holder being arranged in the lower die holder, the technical principle of this mould is prior art, which will not be described here, model groove and upper edge groove are provided on the upper end surface of lower die holder, inner die body is arranged in model groove, and inner die body is placed in model groove, the central axis of model groove coincides with the central axis of lower die holder, inner extension rod is fixed on the lower end surface of upper die holder, positioning block is fixed on the lower end surface of inner extension rod, inner extension rod and positioning block are arranged in upper edge groove, inner edge groove is formed in upper edge groove, spring and sliding block fixedly connected with spring are arranged in inner edge groove, fixed rod is fixedly connected to the end of sliding block away from spring, receiving seat is arranged on the end of fixed rod away from sliding block, fixed rod passes through inner edge groove and is connected with receiving seat, and receiving seat is fixed to the outside of inner die body.

[0006] Preferably, the upper edge groove and the inner extension rod are each provided with a plurality of inner extension rods, and the plurality of inner extension rods are distributed in the circumferential direction of the lower end surface of the upper die holder.

[0007] Preferably, the plurality of inner extension rods are respectively attached to the inner walls of the plurality of upper edge grooves, and the plurality of inner extension rods are each vertically arranged.

[0008] Preferably, the end of the spring away from the sliding block is fixedly connected with the lower die holder, and the spring is horizontally arranged.

[0009] Preferably, the positioning block is provided with an inclined wall at the end away from the inner extension rod, and the fixed rod is provided with a matching groove at the upper end surface, and the matching groove is matched with the inclined wall; when the positioning block moves downward, the inclined wall will be in contact with the matching groove to press the fixed rod, and then push the fixed rod to move towards the inner mold body.

[0010] Preferably, a plurality of receiving seats are arranged on the circumference of the inner mold body.

[0011] Preferably, the receiving seat is provided with an engaging groove, and the end of the fixed rod away from the sliding block is inserted into the engaging groove, and the fixed rod is attached to the inner wall of the engaging groove.

[0012] Compared with the prior art, the utility model has the advantages that in the process that the upper die seat and the lower die seat are combined, the plurality of inner extension rods arranged below the upper die seat are respectively inserted into the plurality of upper edge grooves, and the plurality of positioning blocks generate pressure on the plurality of fixed rods to push the plurality of fixed rods to move towards the inner mold body and combine with the plurality of receiving seats, so that the inner mold body is positioned from multiple directions, and position deviation between the inner mold body and the lower die seat is avoided, thereby avoiding the problem that the both sides of the micro optical lens barrel shell are asymmetric, and the yield is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the whole structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the whole structure of the utility model Figure 1 It is a schematic diagram of the whole structure of the utility model

[0015] Figure 3 It is a schematic diagram of the whole structure of the utility model Figure 2 It is a schematic diagram of the whole structure of the utility model

[0016] Figure 4 It is a schematic diagram of the whole structure of the utility model Figure 2 It is a schematic diagram of the whole structure of the utility model

[0017] The reference signs and names in the drawings are as follows: 1, upper die seat; 2, lower die seat; 21, model groove; 22, upper edge groove; 23, inner edge groove; 3, inner mold body; 4, inner extension rod; 5, positioning block; 51, inclined wall; 6, spring; 7, sliding block; 8, fixed rod; 81, matching groove; 9, receiving seat; 91, engaging groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0019] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0020] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0021] Please refer to Figure 1 The present application provides an embodiment: a micro-light objective lens barrel die-casting die, comprising an upper die seat 1 and a lower die seat 2 arranged below the upper die seat 1, the technical principle of the die is the prior art, which will not be described here.

[0022] Please refer to Figure 2The upper end surface of the lower die base 2 is provided with a model groove 21 and a plurality of upper edge grooves 22, the upper edge grooves 22 are at least four, the inner die body 3 is arranged in the model groove 21, the inner die body 3 is placed in the model groove 21, the central axis of the model groove 21 coincides with the central axis of the lower die base 2, a plurality of inner extension rods 4 are fixed on the lower end surface of the upper die base 1, and the plurality of inner extension rods 4 are distributed in the circumferential direction of the lower end surface of the upper die base 1, the plurality of inner extension rods 4 are respectively attached to the inner walls of the plurality of upper edge grooves 22, and the plurality of inner extension rods 4 are vertically arranged.

[0023] Please refer to Figure 3 The lower end surface of the inner extension rod 4 is fixed with a positioning block 5, and the end of the positioning block 5 away from the inner extension rod 4 is provided with an inclined wall 51, the inner extension rod 4 and the positioning block 5 are arranged in the upper edge groove 22, the inner edge groove 23 is formed in the upper edge groove 22, the spring 6 and the sliding block 7 fixedly connected with the spring 6 are arranged in the inner edge groove 23, the end of the spring 6 away from the sliding block 7 is fixedly connected with the lower die base 2, and the spring 6 is horizontally arranged, the fixed rod 8 is fixedly connected at the end of the sliding block 7 away from the spring 6, the kissing groove 81 is arranged on the upper end surface of the fixed rod 8, and the kissing groove 81 is matched with the inclined wall 51; when the positioning block 5 moves downward, the inclined wall 51 contacts the kissing groove 81 and extrudes the fixed rod 8, so as to push the fixed rod 8 to move towards the inner die body 3.

[0024] Please refer to Figure 4 The end of the fixed rod 8 away from the sliding block 7 is provided with a receiving seat 9, the fixed rod 8 passes through the inner edge groove 23 and is in contact with the receiving seat 9, the receiving seat 9 is fixed to the outer side of the inner die body 3, a plurality of receiving seats 9 are arranged, and the plurality of receiving seats 9 are fixed in the circumferential direction of the inner die body 3, the engaging groove 91 is arranged on the receiving seat 9, the end of the fixed rod 8 away from the sliding block 7 is inserted into the engaging groove 91, and the fixed rod 8 is attached to the inner wall of the engaging groove 91.

[0025] Please refer to Figures 1 to 4 In the working process of the utility model, when the upper die base 1 and the lower die base 2 are closed, the upper die base 1 drives the plurality of inner extension rods 4 to be inserted into the plurality of upper edge grooves 22, finally makes the plurality of positioning blocks 5 contact with the plurality of kissing grooves 81 respectively through the inclined walls 51 on the plurality of positioning blocks 5, and generates pressure on the plurality of fixed rods 8, so that the plurality of fixed rods 8 overcome the pulling force of the plurality of springs 6 and move towards the plurality of receiving seats 9, finally make the plurality of fixed rods 8 be inserted into the plurality of engaging grooves 91 respectively, so as to position the inner die body 3 from multiple directions, and avoid displacement of the inner die body 3 due to vibration in the closing process.

[0026] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A die-casting mold for a micro-optical objective lens barrel, comprising an upper mold base (1) and a lower mold base (2) disposed below the upper mold base (1), characterized in that: The upper end face of the lower mold base (2) is provided with a model groove (21) and an upper edge groove (22). An inner mold body (3) is provided in the model groove (21). The inner mold body (3) is placed in the model groove (21). The central axis of the model groove (21) coincides with the central axis of the lower mold base (2). An inner extension rod (4) is fixed on the lower end face of the upper mold base (1). A positioning block (5) is fixed on the lower end face of the inner extension rod (4). Both the inner extension rod (4) and the positioning block (5) are provided in the upper edge groove (22). Inside, an inner groove (23) is formed in the upper groove (22). A spring (6) and a slider (7) fixedly connected to the spring (6) are provided in the inner groove (23). A fixing rod (8) is fixedly connected to the end of the slider (7) away from the spring (6). A receiving seat (9) is provided at the end of the fixing rod (8) away from the slider (7). The fixing rod (8) passes through the inner groove (23) and contacts the receiving seat (9). The receiving seat (9) is fixed to the outside of the inner mold body (3).

2. The die-casting mold for a micro-optical objective lens barrel according to claim 1, characterized in that: The upper edge groove (22) and the inner extension rod (4) are provided in multiple ways, and the multiple inner extension rods (4) are distributed in the circumferential direction of the lower end face of the upper mold base (1).

3. The die-casting mold for a micro-optical objective lens barrel according to claim 2, characterized in that: The multiple inner extension rods (4) are respectively attached to the inner walls of the multiple upper edge grooves (22), and the multiple inner extension rods (4) are all vertically arranged.

4. The die-casting mold for a micro-optical objective lens barrel according to claim 1, characterized in that: The end of the spring (6) away from the slider (7) is fixedly connected to the lower mold base (2), and the spring (6) is set horizontally.

5. The die-casting mold for a micro-optical objective lens barrel according to claim 1, characterized in that: The positioning block (5) has an inclined wall (51) at one end away from the inner extension rod (4), and the upper end face of the fixing rod (8) has a matching groove (81) that is adapted to the inclined wall (51).

6. The die-casting mold for a micro-optical objective lens barrel according to claim 1, characterized in that: Multiple receivers (9) are provided, and multiple receivers (9) are fixed in the circumferential direction of the inner mold body (3).

7. The die-casting mold for a micro-optical objective lens barrel according to claim 1, characterized in that: The receiving base (9) is provided with a connecting groove (91), and the end of the fixing rod (8) away from the slider (7) is inserted into the connecting groove (91), and the fixing rod (8) is in contact with the inner wall of the connecting groove (91).

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