Multi-core ferrule high-precision grinding clamp with guide seat

Abstract

The utility model discloses a multi-core ferrule high-precision grinding fixture with a guide seat, which comprises a base and a plurality of clamping mechanisms, each clamping mechanism comprises a non-standard screw, a guide seat, a pressing block and an elastic piece, the upper surface of the base sinks to form a slot, and the guide seat is arranged in the slot. The guide seat is arranged in the groove position and provided with a through guide groove in the horizontal direction, and the pressing block is arranged in the guide groove in a matched mode. The guide seat with the guide groove is arranged in the groove position, the clamping plate part at the tail end of the pressing block is clamped in the groove of the non-standard screw, when the non-standard screw is rotated, the pressing block moves forwards along the guide groove, the multi-core insertion core is pushed into the boss position of the elastic piece to be positioned in the vertical direction, meanwhile, the pressing block is used for locking the side face of the multi-core insertion core, and the non-standard screw is clamped in the groove. Due to the guiding effect of the guiding seat, the pressing position of the pressing block is very stable, the positioning precision is greatly improved, and the grinding and positioning problems of the short / thin type multi-core inserting core are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical fiber polishing, in particular to a multi-core ferrule high-precision polishing fixture with a guide seat. Background Art

[0002] With the continuous development of the optical fiber communication industry, the communication rate continues to increase, the density of connectors is getting larger and larger, and the external dimensions are getting smaller and smaller (the length is shortened from 8.0mm to 3~4.5mm, and the thickness is reduced from 2.5mm to 1.25~1.5mm), which puts higher requirements on the grinding of connectors.

[0003] The existing grinding fixture structure scheme is no longer able to meet the requirements. In the relevant technology, you can refer to the Chinese patent with announcement number CN203600042U, which specifically discloses an MT core grinding fixture. The main problems are: 1. The pressure block in the current fixture mainly relies on the front diameter part of the non-standard screw to locate the upper and lower positions. Due to processing and assembly reasons, the positioning accuracy of the pressure block is not very high. When the product positioning length becomes shorter, the angle consistency of the product will deteriorate; 2. The original structure pressure block is fixed on the non-standard screw by a C-type retaining ring to achieve fixed position. After a period of use, the C-type retaining ring is easily deformed and falls off due to stress.

[0004] In view of this, a high-precision grinding fixture for multi-core ferrules with a guide seat is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model aims to provide a multi-core ferrule high-precision grinding fixture with a guide seat.

[0006] The technical solution adopted by the utility model is as follows: a multi-core ferrule high-precision grinding fixture with a guide seat, comprising a base and a plurality of clamping mechanisms, the clamping mechanism comprising a non-standard screw, a guide seat, a pressure block and an elastic member, wherein the upper surface of the base is sunken to form a slot, the guide seat is arranged in the slot and has a through guide groove in the horizontal direction, the pressure block is cooperatively arranged in the guide groove, the outer wall surface of the base is provided with a threaded through hole compatible with the non-standard screw, one end of the non-standard screw extends into the guide groove along the direction of the threaded through hole, a matching structure for movably connecting the non-standard screw and the pressure block is provided between the non-standard screw and the pressure block, and the pressure block is driven to move left and right along the guide groove by rotating the non-standard screw.

[0007] In a preferred embodiment, the mating structure includes a clamping plate symmetrically arranged at one end of the pressure block, and an opening is provided between the two clamping plates to allow the non-standard screw to expand and pass through. The outer wall of the non-standard screw is concave inward along the circumferential direction to form a groove, and the clamping plate is clamped on the groove to limit the position of the pressure block.

[0008] In a preferred embodiment, one end of the elastic member is placed in the slot, and a clamping space for fixing the multi-core ferrule is formed between the slot, the elastic member and the pressing block.

[0009] In a preferred embodiment, the elastic member has a wavy folding pattern, and a downwardly inclined boss is provided at one end of the elastic member facing the multi-core ferrule, the boss abuts against the flange surface of the multi-core ferrule, and the other end of the elastic member is screwed to the base.

[0010] In a preferred embodiment, the width of the guide seat is the same as the width of the slot, and the guide seat is also provided with an L-shaped limit plate overlapped on the outer edge of the base, and the side of the L-shaped limit plate is provided with a through hole for non-standard screws to pass through, and the guide seat is fixed to the base by gluing, spot welding or screw locking.

[0011] In a preferred embodiment, a plurality of the clamping mechanisms are mounted on the base at equal intervals along the circumferential direction.

[0012] In a preferred embodiment, the outer peripheral surface of the non-standard screw is provided with anti-slip lines, and the center of the outer end of the non-standard screw is further provided with an adjustment hole.

[0013] In a preferred embodiment, a connecting column is installed at the center of the upper surface of the base, and a mounting hole is opened on the top of the connecting column.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] 1. In the present invention, a guide seat with a guide groove is provided in the slot. The clamping plate at the rear end of the pressure block is clamped in the groove of the non-standard screw. When the non-standard screw is rotated, the pressure block moves forward along the guide groove, pushing the multi-core ferrule into the boss position of the elastic member for vertical positioning. At the same time, the pressure block is used to lock the side of the multi-core ferrule, thereby achieving precise positioning of the multi-core ferrule on the fixture. Due to the guiding effect of the guide seat, the clamping position of the pressure block is very stable, solving the grinding positioning problem of short / thin multi-core ferrules. Through precise positioning, accurate control of the product grinding angle is achieved;

[0016] 2. In the utility model, a clamping plate for clamping the non-standard screw groove is provided on the back of the pressure block. The combination of the clamping plate and the groove is utilized to realize the combined operation of the pressure block and the non-standard screw, thereby solving the problem that the existing tooling clamp is easily deformed and falls off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2This is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention after being disassembled;

[0019] Figure 3 This is a schematic diagram of the overall top plan structure of the utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of AA.

[0021] Markings in the figure: 1-base, 11-slot, 2-connecting column, 21-mounting hole, 3-clamping mechanism, 31-non-standard screw, 311-groove, 32-elastic part, 321-boss, 33-guide seat, 331-guide groove, 34-pressure block, 341-card plate, 35-screw. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] A high-precision grinding fixture for multi-core ferrules with a guide seat, refer to Figure 1-4 , including a base 1 and a plurality of clamping mechanisms 3, the clamping mechanism 3 includes a non-standard screw 31, a guide seat 33, a pressure block 34 and an elastic member 32, wherein the upper surface of the base 1 is sunken to form a slot 11, the guide seat 33 is arranged in the slot 11 and has a through guide slot 331 in the horizontal direction, the pressure block 34 is matched and arranged in the guide slot 331, the outer wall of the base 1 is provided with a threaded through hole adapted to the non-standard screw 31, one end of the non-standard screw 31 extends into the guide slot 331 along the direction of the threaded through hole, and a matching structure for movably connecting the two is provided between the non-standard screw 31 and the pressure block 34, and the pressure block 34 is driven to move left and right along the guide slot 331 by rotating the non-standard screw 31, and one end of the elastic member 32 (made of a material allowing a certain elastic deformation) is placed in the slot 11, and the slot 11 A clamping space for fixing the multi-core ferrule is formed between the elastic member 32 and the pressing block 34. The elastic member 32 has a wavy folding pattern. A downward-inclined boss 321 is provided at one end of the elastic member 32 facing the multi-core ferrule. A guide seat 33 with a guide groove 331 is provided in the slot 11. When the non-standard screw 31 is rotated, the pressing block 34 moves forward along the guide groove 331, pushing the multi-core ferrule into the boss position 321 of the elastic member for positioning in the up and down directions. At the same time, the side of the multi-core ferrule is locked by the pressing block 34, thereby realizing precise positioning of the multi-core ferrule on the fixture. Due to the guiding effect of the guide seat 33, the clamping position of the pressing block 34 is very stable, which solves the grinding positioning problem of short / thin multi-core ferrules. Through precise positioning, precise control of the product grinding angle is achieved.

[0024] Among them, multiple clamping mechanisms 3 are installed on the base 1 at equal intervals along the circumferential direction. The number of the clamping mechanisms 3 is preferably 24, but this is not limited here. They can be arranged in a circle, a square, etc.

[0025] Reference Figure 2 and Figure 4 As shown, the matching structure includes a clamping plate 341 symmetrically arranged at one end of the pressure block 34, and an opening is provided between the two clamping plates 341 to allow the non-standard screw 31 to expand and pass through. The outer wall of the non-standard screw 31 is recessed inward along the circumferential direction to form a groove 311, and the clamping plate 341 is clamped on the groove 311 to limit the position of the pressure block 34. A clamping plate 341 for clamping the groove 311 of the non-standard screw 31 is provided on the back of the pressure block 34. The combination of the clamping plate 341 and the groove 311 is used to realize the combined operation of the pressure block 34 and the non-standard screw 31, thereby solving the problem that the existing tooling clamping ring is easily deformed and falls off.

[0026] In order to improve the strength, the clamping plate 341 and the pressing block 34 are formed as an integral part. In other embodiments, the clamping plate 341 and the pressing block 34 can also be separate parts, which will not be described in detail here.

[0027] Furthermore, the boss 321 abuts against the flange surface of the multi-core ferrule, and the other end of the elastic member 32 is fastened to the base 1 by a screw 35 . The boss 321 and the base 1 are respectively provided with a light hole and a threaded hole for the screw 35 to pass through.

[0028] Furthermore, the width of the guide seat 33 is the same as the width of the slot 11. The guide seat 33 is also provided with an L-shaped limit plate that overlaps the outer edge of the base 1. The side of the L-shaped limit plate is provided with a through hole for the non-standard screw 31 to pass through. The guide seat 33 is fixed to the base 1 by gluing, spot welding or screw locking. The L-shaped limit plate can be used to assist in limiting the installation position of the guide seat 33 to ensure precise control of the installation position between each guide seat 33, and can also improve the installation strength of the subsequent guide seat 33.

[0029] Furthermore, the outer circumference of the non-standard screw 31 is provided with anti-slip grooves, and an adjustment hole is also opened in the center of the outer end of the non-standard screw 31. The adjustment hole is preferably a hexagonal hole, but this is not limited here. The feed depth of the non-standard screw 31 can be adjusted using a hexagonal handle or other tools.

[0030] Furthermore, a connecting column 2 is installed at the center of the upper surface of the base 1. A mounting hole 21 is opened on the top of the connecting column 2, which can be combined with an external grinding device (not shown in the figure).

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision grinding fixture for multi-core ferrules with a guide seat, characterized in that: It includes a base and a plurality of clamping mechanisms, the clamping mechanism includes a non-standard screw, a guide seat, a pressure block and an elastic member, wherein the upper surface of the base is sunken to form a slot, the guide seat is arranged in the slot and has a through guide groove in the horizontal direction, the pressure block is arranged in the guide groove, the outer wall of the base is provided with a threaded through hole adapted to the non-standard screw, one end of the non-standard screw extends into the guide groove along the direction of the threaded through hole, a matching structure for movably connecting the non-standard screw and the pressure block is provided, and the pressure block is driven to move left and right along the guide groove by rotating the non-standard screw.

2. A high-precision grinding fixture for multi-core ferrules with a guide seat according to claim 1, characterized in that: The matching structure includes a clamping plate symmetrically arranged at one end of the pressure block, and an opening is provided between the two clamping plates to allow the non-standard screw to expand and pass through. The outer wall of the non-standard screw is concave inward along the circumferential direction to form a groove, and the clamping plate is clamped on the groove to limit the position of the pressure block.

3. The high-precision grinding fixture for multi-core ferrules with a guide seat according to claim 1, characterized in that: One end of the elastic member is placed in the slot, and a clamping space for fixing the multi-core ferrule is formed between the slot, the elastic member and the pressing block.

4. The high-precision grinding fixture for multi-core ferrules with a guide seat according to claim 1, characterized in that: The elastic member has a wavy folding pattern. One end of the elastic member facing the multi-core ferrule is provided with a downwardly inclined boss, which abuts against the flange surface of the multi-core ferrule. The other end of the elastic member is screwed to the base.

5. The high-precision grinding fixture for multi-core ferrules with a guide seat according to claim 1, characterized in that: The width of the guide seat is the same as the width of the slot. The guide seat is also provided with an L-shaped limit plate overlapped on the outer edge of the base. The side of the L-shaped limit plate is provided with a through hole for non-standard screws to pass through. The guide seat is fixed to the base by gluing, spot welding or screw locking.

6. The high-precision grinding fixture for multi-core ferrules with a guide seat according to claim 1, characterized in that: A plurality of the clamping mechanisms are installed on the base at equal intervals along the circumferential direction.

7. The high-precision grinding fixture for multi-core ferrules with a guide seat according to claim 1, characterized in that: The outer peripheral surface of the non-standard screw is provided with anti-slip lines, and the center of the outer end of the non-standard screw is also provided with an adjustment hole.

8. The high-precision grinding fixture for multi-core ferrules with a guide seat according to claim 1, characterized in that: A connecting column is installed at the center of the upper surface of the base, and a mounting hole is opened on the top of the connecting column.

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